CN117703138A - Cleaning equipment and filtering mechanism - Google Patents

Abstract

The utility model relates to a clean technical field of water provides a cleaning equipment and filtering mechanism, and this cleaning equipment includes organism, filtering mechanism and running gear, sets up at least one water inlet on the organism, and filtering mechanism includes at least: the device comprises a first-stage filtering mechanism, a second-stage filtering mechanism and a fluid pumping device, wherein the first-stage filtering mechanism, the second-stage filtering mechanism and the fluid pumping device are sequentially connected, a water inlet is communicated with the first-stage filtering mechanism, water flow near the water inlet is pumped to the first-stage filtering mechanism and the second-stage filtering mechanism by suction force generated by the fluid pumping device to be filtered step by step, the size dimension of separating impurities from the water flow by the first-stage filtering mechanism is larger than that of separating the impurities from the water flow by the second-stage filtering mechanism, and at least one of the first-stage filtering mechanism and the second-stage filtering mechanism is a rotary separation filtering mechanism. The utility model discloses a filter step by step through filtering rivers, effectively improved cleaning equipment's filter effect.

Description

A kind of cleaning equipment and filtering mechanism

Technical field

The present disclosure relates to the technical field of water body cleaning, and more specifically, to a cleaning equipment and a filtering mechanism.

Background technique

During the use of the swimming pool, various impurities will be produced, including but not limited to dust, leaves, pollen, etc. that fall into the water, as well as sand, soil, pebbles, etc. deposited on the bottom of the pool. Therefore, the swimming pool needs to be cleaned regularly to maintain the cleanliness of the swimming pool and the good water quality. In practice, swimming pool cleaning can be done manually or with cleaning equipment. Compared with manual work, the use of cleaning equipment does not require additional manpower, which reduces the workload of swimming pool maintenance personnel. However, actual use has found that although the existing swimming pool cleaning equipment has a certain filtering capacity, due to the many types of impurities in the swimming pool and the different dimensions of the impurities, and the filtering system structure of the swimming pool cleaning equipment is single, impurity filtration will not be possible. Thoroughness, and some large-sized impurities clogging the filter screen, resulting in unsatisfactory swimming pool cleaning results.

Contents of the invention

The purpose of this disclosure is to provide a cleaning device and a filtering mechanism to solve the technical problem of unsatisfactory cleaning effects of existing swimming pool cleaning devices.

In order to achieve the above purpose, the technical solution adopted by this disclosure is:

On the one hand, the present disclosure provides a cleaning equipment, including a body, a filtering mechanism and a traveling mechanism. The body is provided with at least one water inlet. The filtering mechanism at least includes: a first-stage filtering mechanism, a second-stage filtering mechanism and a walking mechanism. Fluid pumping device, the first-stage filtering mechanism, the second-stage filtering mechanism and the fluid pumping device are connected in series in sequence, the water inlet is connected with the first-stage filtering mechanism, and the water flow near the water inlet is generated by the fluid pumping device The suction force is pumped to the first-stage filtering mechanism and the second-stage filtering mechanism for step-by-step filtration. The size and dimension of the impurities separated by the first-stage filtering mechanism from the water flow are larger than the size of the impurities separated by the second-stage filtering mechanism from the water flow. Dimensions, wherein the first-stage filtration mechanism is an inertial separation filtration mechanism, and the second-stage filtration mechanism is a rotary separation filtration mechanism.

In some preferred embodiments, the inertial separation filter mechanism includes at least two straight fluid channels and an impurity receiving chamber. The at least two straight fluid channels are arranged vertically above the impurity receiving chamber along the length direction. The at least two straight fluid channels are arranged vertically above the impurity receiving chamber. Two straight fluid channels are curved and connected end to end side by side, and the two ends of the connected straight fluid channels are connected to the water inlet and the second-stage filtering mechanism respectively. The straight fluid channels are connected in a curved position close to the side of the impurity storage chamber. An opening is provided, and the inner wall of the straight fluid channel around the opening is a tapered wall.

In some preferred embodiments, the bending angle of two adjacent straight fluid channels at the bending communication position is greater than 90°.

In some preferred embodiments, the tapered wall has a taper of 10°-20°.

In some preferred embodiments, the rotary separation filtering mechanism at least includes: an outer swirling space, a filter screen, and an inner swirling space. The outer swirling space is arranged outside the filtering screen and communicates with the first-stage filtering mechanism. The water flow output by the first-stage filtering mechanism enters the outer swirl space and generates a rotational movement to separate the water flow that cannot pass through the filter screen. The inner swirl space is arranged inside the filter screen and is connected to the fluid pumping device. , the water flow passing through the filter enters the inner swirl space and generates a secondary rotational motion to separate the impurities in the water flow.

In some preferred embodiments, the rotary separation filter mechanism also includes: a filter cleaning device. The filter cleaning device includes a vibration device, an eccentric piece and a connecting piece. The vibration device is fixedly installed on one axial end of the filter screen, and the eccentric piece It is connected to the output shaft of the vibration device and rotates with the vibration device. The connecting piece is connected to the eccentric piece and the filter screen respectively.

In some preferred embodiments, the rotary separation filter mechanism also includes: a filter cleaning device, which is disposed close to the outer wall or/and inner wall of the filter, and the filter cleaning device and the filter can reciprocate axially relative to each other. move or turn.

In some preferred embodiments, the rotary separation filter mechanism further includes: a filter cleaning device, which is disposed close to the outer wall or/and inner wall of the filter, and the filter cleaning device can be connected with the filter. Reciprocating movement or rotation relative to the axis.

In some preferred embodiments, the filter cleaning device includes a brush strip closely attached to the side wall of the filter

In some preferred embodiments, the filter cleaning device further includes an impeller, which is disposed at a position where the water inlet channel communicates with the outer swirl space, and is fixed and rotated along the axial direction of the filter, and the brush bar is connected to the The impeller is fixedly connected or the impeller drives the brush bar to rotate.

In some preferred embodiments, the number of the brush strips is at least one, and each brush strip is arranged on the side wall of the filter screen in a parallel, inclined or circumferential manner relative to the axial direction.

On the other hand, the present disclosure also provides a filtering mechanism for use in cleaning equipment. The filtering mechanism at least includes: a first-stage filtering mechanism, a second-stage filtering mechanism, and a fluid pumping device. The first-stage filtering mechanism, the second-stage filtering mechanism, and the fluid pumping device. The first-stage filter mechanism and the fluid pumping device are connected in cascade in sequence. The water inlet is connected to the first-stage filter mechanism. The fluid pumping device generates suction force to pump the water flow from near the water inlet to the first-stage filter mechanism and the second-stage filter mechanism. The first-stage filtering mechanism performs step-by-step filtration, and the size dimension of the impurities separated by the first-stage filtering mechanism from the water flow is greater than the size dimension of the impurities separated by the second-stage filtering mechanism from the water flow, wherein the first-stage filtering mechanism separates impurities from the water flow. It is an inertial separation and filtering mechanism, and the second-stage filtering mechanism is a rotating separation and filtering mechanism.

In some preferred embodiments, the first-stage filtration mechanism is an inertial separation filtration mechanism, and the second-stage filtration mechanism is a rotating separation filtration mechanism; the inertial separation filtration mechanism includes at least two straight fluid channels and an impurity storage cavity, and the At least two straight fluid channels are arranged vertically above the impurity storage chamber along the length direction. The at least two straight fluid channels are connected side by side and curved end to end, and the two ends of the connected straight fluid channels are connected to the water inlet respectively. Communicated with the second-stage filtering mechanism, the straight fluid channel is provided with an opening at a curved communication position close to the side of the impurity storage chamber, and the inner wall of the straight fluid channel around the opening is a tapered wall; the rotating separation filtering mechanism at least includes: The outer swirl space, the filter screen and the inner swirl space. The outer swirl space is arranged outside the filter and is connected to the first-stage filter mechanism. The water flow output from the first-stage filter mechanism enters the outer swirl space. A rotational motion is generated to separate the water flow that cannot pass through the filter. The inner swirl space is arranged on the inner side of the filter and is connected to the fluid pumping device. The water flow passing through the filter enters the inner swirl space to generate a secondary flow. Rotating motion to separate impurities from the water flow.

In some preferred embodiments, the rotary separation filter mechanism also includes: a filter cleaning device, which includes an impeller and a brush bar. The impeller is disposed at a position where the water inlet flow channel communicates with the outer swirl space, and along the The filter screen is axially rotated and fixed, and the brush strip is arranged along the axial direction of the filter screen and closely attached to the side wall of the filter screen. The brush strip is fixedly connected to the impeller or the impeller drives the brush strip to rotate. When the water flow is outside When the swirl space rotates, the impeller is driven to rotate, causing the impeller to drive the brush bar to rotate circumferentially along the side wall of the filter to wipe away impurities on the side wall.

The beneficial effects of the cleaning equipment provided by the present disclosure are at least that: the water flow pumped by the fluid pumping device from the water inlet is filtered step by step through the first-stage filtering mechanism and the second-stage filtering mechanism on the cleaning equipment, and the impurities in the water flow are filtered according to size. The dimensions are filtered and separated in order from large to small, so that the impurities in the water flow can be filtered more thoroughly, thus effectively improving the filtration effect of the cleaning equipment.

Description of the drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the purpose of the disclosure. For some embodiments, for those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic structural diagram of a cleaning device provided by an embodiment of the present disclosure;

Figure 2 is a schematic diagram of the overall structure of a filter mechanism provided by an embodiment of the present disclosure;

Figure 3 is a schematic structural diagram of an electronic control unit provided by an embodiment of the present disclosure;

Figure 4 is a cross-sectional view of an inertial separation and filtering mechanism provided by an embodiment of the present disclosure;

Figure 5 is a cross-sectional view of a rotary separation and filtering mechanism provided by an embodiment of the present disclosure;

Figure 6 is an exploded view of a rotating separation and filtering mechanism provided by an embodiment of the present disclosure;

Figure 7 is a schematic structural diagram of a filter cleaning device in the rotary separation filter mechanism provided by an embodiment of the present disclosure;

Figure 8 is a schematic structural diagram of another filter cleaning device in the rotary separation filter mechanism provided by an embodiment of the present disclosure;

Figure 9 is a schematic structural diagram of yet another filter cleaning device in the rotary separation filter mechanism provided by an embodiment of the present disclosure;

FIG. 10 is a partial cross-sectional view of another rotary separation filter mechanism provided by an embodiment of the present disclosure.

Among them, each figure in the figure is marked with:

100. Cleaning equipment; 110. Machine body; 111. Water inlet; 112. Electronic control unit; 120. Traveling mechanism; 130. Filtration mechanism; 131. First-stage filtration mechanism; 1311. Straight fluid channel; 1312. Impurity storage chamber ; 132. Second-stage filtering mechanism; 1321. Water inlet flow channel; 1322. Water outlet flow channel; 1323. Filter; 1324. Outer swirl space; 1325. Inner swirl space; 1326. Bottom cover; 1327. Top Cover; 133. Fluid pumping device; 134. Filter cleaning device; 1341. Vibration device; 1342. Eccentric piece; 1343. Connector; 1344. Impeller; 1345. Brush bar.

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects to be solved by the present disclosure clearer, the present disclosure will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present disclosure and are not intended to limit the present disclosure.

It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly or indirectly located on the other component. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The terms "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. The indicated orientation or position is based on the orientation or position shown in the drawings. It is only for convenience of description and cannot be understood as a limitation of the present technical solution. The terms "first" and "second" are only used for convenience of description and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of technical features. "Plural" means two or more, unless otherwise expressly and specifically limited.

Please refer to Figures 1 and 2. Figure 1 is an embodiment of the present disclosure that provides a cleaning device, which at least includes: a body 110, a traveling mechanism 120 and a filtering mechanism 130. The traveling mechanism 120 is used to clean the bottom and wall of the swimming pool. To move, the body 110 is provided with at least one water inlet 111, and the filtering mechanism 130 is connected to the water inlet 111 for sucking water near the water inlet 111 into the filtering mechanism 130 for filtering and discharge out of the machine. The filtering mechanism 130 is at least It includes: a first-stage filtering mechanism 131, a second-stage filtering mechanism 132 and a fluid pumping device 133. The first-stage filtering mechanism 131 and the second-stage filtering mechanism 132 are cascaded in sequence. The first-stage filtering mechanism 131 is connected to the water inlet. The fluid The pumping device 133 is connected to the second-stage filtering mechanism 132 and is used to generate a suction force for water flow from the water inlet to pass through the first-stage filtering mechanism 131 and the second-stage filtering mechanism 132 in sequence, and to separate the water through the first-stage filtering mechanism 131 The size dimensions of the impurities are larger than the size dimensions of the impurities separated in the second-stage filtering mechanism 132. At least one of the first-stage filtering mechanism 131 and the second-stage filtering mechanism 132 is a rotating separation filtering mechanism. For example, in one embodiment, the first-stage filtering mechanism 131 and the second-stage filtering mechanism 132 can both be rotary separation filtering mechanisms; in another embodiment, the first-stage filtering mechanism 131 is an inertial separation and filtering mechanism, and the second-stage filtering mechanism 132 can be an inertial separation filtering mechanism. The first-stage filtering mechanism 132 is a rotating separation filtering mechanism.

The working principle of the filtering mechanism in the above-mentioned cleaning equipment is to use the fluid pumping device 133 to pump the water flow near the water inlet to the first-stage filtering mechanism 131 and the second-stage filtering mechanism 132 of the filtering mechanism for step-by-step filtration. Moving forward, the size dimensions of the impurities filtered out at each stage are getting smaller and smaller, and after multi-stage filtration, the impurities in the water flow are also getting smaller and smaller, thereby achieving thorough filtration of impurities in the water flow.

It can be seen that according to the technical solution provided by the embodiment of the present disclosure, the water flow pumped by the fluid pumping device 133 from the water inlet is filtered step by step through the first-stage filtering mechanism 131 and the second-stage filtering mechanism 132 on the cleaning equipment, and the water in the water flow is filtered step by step. The impurities are filtered and separated in order from large to small in size, so that the impurities in the water flow can be filtered more thoroughly, thus effectively improving the filtration effect of the cleaning equipment.

The body 110 is the overall frame of the cleaning device 100, which may include but is not limited to the body shell, the electronic control unit 112 and various sensors. As the core of the cleaning device 100, the body 110 is responsible for controlling the movement and cleaning operations of the cleaning device 100 and other functions. .

The fuselage shell can provide an installation position for the traveling mechanism 120 and the filtering mechanism 130, etc., so that the electronic control unit, various sensors, the filtering mechanism 130 and the traveling mechanism 120 can be installed and combined together to form a complete cleaning equipment 100. Optionally, the fuselage shell can also include a sealed compartment, which can be used to install various electronic devices to prevent the electronic devices from coming into contact with water and ensure the safety of the electronic devices. For example, the sealed compartment may be a motor compartment, which is disposed between the traveling mechanisms 120 on both sides of the cleaning equipment 100 near one end of the traveling direction, and is used to accommodate and install the fluid pumping device 133 and the motor and other components.

A schematic structural diagram of an electronic control unit provided by an embodiment of the present disclosure is shown in 3. The electronic control unit 112 may specifically include a processor, a memory, a communication interface, a control algorithm and software, etc. The control algorithm and software are implemented as a computer program. And stored in the memory, when the computer program corresponding to the control algorithm and software is run on the processor, the movement, cleaning operation, navigation and other functions of the cleaning robot can be realized. In addition, the communication interface is connected to the processor, which can realize internal data communication between the processor of the cleaning equipment 100 and the traveling mechanism 120, the filtering mechanism 130 and the sensor, and can also realize data communication between the cleaning equipment 100 and external equipment. Communication, for example, the communication interface allows the electronic control unit 112 to communicate with a remote control or smartphone application to remotely control the cleaning device 100 .

Sensors are used to sense information about the cleaning equipment 100 and its surrounding environment, including but not limited to distance sensors, tilt sensors, touch sensors, etc. These sensors provide data on the shape of the pool, the location of obstacles, and the current status of the cleaning equipment 100 . Of course, in practice, sensors can be added or reduced according to the needs of the cleaning device 100's own functions. The embodiments of the present disclosure have no limitations on the type, quantity, size, etc. of the sensors.

The water inlet 111 may be provided at the bottom of the cleaning device 100 , or may be provided at the side or top of the cleaning device 100 . For example, if the water inlet 111 is provided at the bottom of the cleaning device 100, when the cleaning device 100 walks on the bottom or wall of the pool, the water flow around the moving path can be sucked into the filtering mechanism through the water inlet 111 during the movement of the cleaning device 100. 130 for filtering; in addition, if the water inlet 111 is provided on the side or top of the cleaning device 100, when the cleaning device 100 cleans the swimming pool along the water line on the water surface, the water flow around the water inlet 111 located on the side or top can be sucked into the filtering mechanism 130 to filter. Among them, the water inlet 111 can be set as a normal opening, or can be set as an openable and closable opening, and the number is at least one, which is not limited in the embodiment of the present disclosure.

The walking mechanism 120 can move the cleaning equipment 100 on the bottom or wall of the pool, and the specific implementation of the walking mechanism 120 is not unique. For example, the traveling mechanism 120 in Figure 1 can use crawlers to move the cleaning equipment 100 on the bottom or wall of the pool. That is, the traveling mechanism 120 includes two sets of crawlers, and the two sets of crawlers are arranged on both sides of the body 110. Each set of crawlers The number may be one. In addition, the traveling mechanism 120 may also include a driving mechanism and a transmission mechanism. The driving mechanism is coupled with each set of crawler tracks through a transmission mechanism. The driving mechanism may be a driving source such as an electric motor. The transmission mechanism may be composed of one or more gears. A gear set composed of components such as a rack or a screw is used to transmit the driving force of the driving mechanism to the crawler track, so that the crawler track rotates to realize the movement of the cleaning equipment 100 on the bottom or wall of the pool. Of course, the traveling mechanism 120 can also be implemented as other structures. For example, the traveling mechanism 120 uses wheels to move the cleaning equipment 100 on the bottom or wall of the pool. The principle is similar to the crawler track method mentioned above. In this regard, the embodiment of the present disclosure No longer.

Among them, the specific implementation methods of the inertial separation and filtering mechanism and the rotating separation and filtering mechanism are not unique. Several implementations of the inertial separation and filtering mechanism and the rotating separation and filtering mechanism are given below for reference.

A cross-sectional view of an inertial separation and filtering mechanism provided by an embodiment of the present disclosure is shown in Figure 4. The inertial separation and filtering mechanism includes: at least two straight fluid channels 1311 and an impurity storage cavity 1312. At least two straight fluid channels 1311 is arranged vertically above the impurity storage chamber 1312 along the length direction. At least two straight fluid channels 1311 are connected side by side and connected end to end, and the two ends of the straight fluid channel 1311 connected end to end are respectively connected with the water inlet and the third fluid channel 1311. The secondary filtering mechanism 132 is connected. The straight fluid channel 1311 is provided with an opening at a curved connecting position close to the side of the impurity storage chamber 1312. The inner wall of the straight fluid channel 1311 around the opening is a tapered wall.

The working principle of this inertial separation and filtering mechanism is that when the water flow passes through the curved positions of the multiple straight fluid channels 1311, the water flow will turn. If the water flow contains impurities with larger dimensions, the turning inertia will not be as good as the water flow. Therefore, under the action of their own gravity and inertia, these impurities with larger dimensions will fall from the opening into the impurity storage cavity 1312 at the turning position of the water flow, that is, the bending position of the adjacent straight fluid channel 1311, thereby realizing the separation between the impurities and the water flow. The first stage of filtration and separation.

The greater the number of straight fluid channels 1311, the better the filtering effect on impurities in the water flow. Therefore, the filtering effect of the first-stage filtering mechanism 131 can be improved by increasing the number of straight fluid channels 1311. However, the greater the number of straight fluid channels 1311, the greater the resistance corresponding to the flowing water. That is to say, the flow rate of the water flow will be slower as the further back, so the effect of inertial separation becomes worse. Therefore, in practice, the number of straight fluid channels 1311 can be selected according to the needs of the application scenario. For example, in Figure 4, there are four straight fluid channels 1311, corresponding to two curved connected positions on the side close to the impurity storage chamber 1312, that is, There are two openings connected with the impurity receiving cavity 1312 .

The embodiment of the present disclosure uses an inertial separation and filtering mechanism as the first-stage filtering mechanism 131 to perform the first filtering of the water flow, and utilizes the principle that the inertia of larger dimensions in the water flow is not as good as that of the water flow when passing through the inertial separation and filtering mechanism. Dimensional impurities are separated from the water flow to achieve rough filtration of the water flow.

Specifically, since the straight fluid channels 1311 are arranged in a side-by-side manner, the water flow will turn at the curved connecting position of the two adjacent straight fluid channels 1311. In order to reduce the resistance of the water flow turning at the curved connecting position, a relatively large flow path is required. Large dimensional impurities are separated. Optionally, the two adjacent straight fluid channels 1311 are configured as a tubular channel or a channel with a circular cross-section, and there is a partition between the two adjacent straight fluid channels 1311, that is, the tubular channel or the cross-section is Partitions are provided in the circular channel along the direction of the water flow, and the side of the two adjacent straight fluid channels 1311 close to the impurity storage chamber 1312 is constructed into a cone shape, and openings are provided at the end positions, so that the water flow can pass through the two When the adjacent straight fluid channels 1311 are connected in a curved position, a certain rotational movement is generated, thereby better separating impurities from the opening. Furthermore, the cone shape on the side of the two adjacent straight fluid channels 1311 close to the impurity storage chamber 1312 is 10°-20°, which is also equivalent to the taper of the inner wall around the opening being 10°-20°, including but not including Limited to conic degrees of 10°, 11°, 12°, 13°, 14°, 15°, 16°, 17°, 18°, 19° or 20°. Optionally, the side of the two adjacent straight fluid channels 1311 close to the impurity storage chamber 1312 is conical and has a taper of 15°, 16° or 17°.

The bending angle of two adjacent straight fluid channels 1311 at the curved connection position should be greater than 90°. For example, the bending angle can be 90°, 100°, 110°, 120°, 130°, 140°, 150°, 160°. , 170°, or 180°. Optionally, as shown in FIG. 4 , the bending angle of two adjacent straight fluid channels 1311 at the bending communication position is 180°.

A cross-sectional view of a rotary separation and filtering mechanism provided by an embodiment of the present disclosure is shown in Figure 5. The rotary separation and filtering mechanism at least includes:

The water inlet flow channel 1321, the water outlet flow channel 1322, the filter 1323, the outer swirl space 1324 and the inner swirl space 1325. The outer swirl space 1324 is connected to the first-stage filtering mechanism through the water inlet flow channel 1321, and the outer swirl space The space 1324 is provided on the outside of the filter 1323, and is used to make the fluid perform a rotational motion in the outer swirl space 1324 to separate part of the large garbage in the garbage from the fluid and collect it in the lower part of the outer swirl space and the inner swirl space. 1325 is arranged inside the filter screen 1323, and the number is at least one. The inner swirl space 1325 includes a fluid inlet and a fluid outlet. The fluid outlet is connected with the water outlet channel 132. The fluid passing through the filter screen 1323 enters the inner swirl flow along the fluid inlet. space 1325 and generates a secondary rotation movement in the inner swirl space 1325 to separate the garbage that passes through the filter 1323 and discharge it from the fluid outlet. The water outlet channel 1322 is connected to the fluid pumping device 133, and the fluid pumping device is used to generate suction force. The fluid near the water inlet 111 is sequentially pumped to the first-stage filtering mechanism 131 and the second-stage filtering mechanism 132 and then flows out.

The embodiment of the present disclosure first uses the rotational motion of the water flow in the outer swirl space 1324 to separate larger-sized impurities, and then uses the rotational motion of the water flow in the inner swirl space 1325 to separate smaller-sized impurities, so that the filter can be The aperture of the mesh 1323 is designed to be relatively large to allow the impurities that have not been separated in the outer swirl space 1324 to pass through the filter screen 1323 and enter the inner swirl space 1325 for secondary separation, thereby achieving stratification of the water flow sucked into the filter mechanism. filtration, thereby effectively reducing the risk of the filter 1323 being clogged, so that the filtration effect of the filter mechanism 130 of the cleaning device 100 will not be affected by clogging of the filter, thereby improving the stability of the filtration function on the cleaning device 100.

Specifically, the water inlet flow channel 1321 and the water outlet flow channel 1322 mainly play a role in guiding the water flow. The water inlet flow channel 1321 is used to guide the water flow output from the first-stage filtering mechanism 131 to the upper position of the outer swirl space, so as to Ensure that the water flow can enter from the top of the outer swirl space 1324, so that the water flow can rotate in the outer swirl space. The impurities with larger dimensions will also have a larger mass, so they will receive a greater centrifugal force. In this way, the impurities with larger dimensions will have a greater mass. The impurities will be centrifuged to collide with the inner wall of the outer swirl space 1324, and fall into the bottom of the outer swirl space 1324 under the action of the impurity's own gravity, thereby achieving the effect of separating impurities with larger dimensions from the water flow. In addition, the water outlet flow channel 1322 is connected above the inner swirl space 1325. The water flow passing through the filter 1323 enters the inner swirl space 1325 and generates rotational motion, which further separates the impurities in the water flow. The separated impurities fall into the inner swirl flow. The bottom of the space 1325, and the water flow flows out from the upper water outlet channel 1322 to achieve effective separation of the water flow and impurities. It can be seen that good water flow guidance through the water inlet flow channel 1321 and the water outlet flow channel 1322 helps to maximize the use of the suction force generated by the fluid pumping device 133, thereby improving the cleaning efficiency of the water flow in the filter mechanism.

An exploded view of a rotary separation filter mechanism provided by an embodiment of the present disclosure, as shown in Figure 6 , the filter 1323 is between the outer swirl space 1324 and the inner swirl space 1325. The shape of the filter 1323 includes but is not limited to Cylindrical, conical and prism shapes, etc. In this embodiment, the shape of the filter 1323 is preferably cylindrical. Among them, the filter 1323 is provided with multiple meshes, and the size of the meshes can be set according to specific application scenarios, and this disclosure does not limit this.

Please refer to Figure 5 and Figure 6. The functions of the outer swirl space 1324 and the inner swirl space 1325 are mainly based on the swirl effect. By guiding the water flow to form a vortex or vortex, the function of separating impurities in the water flow is achieved. Therefore, the shape of the outer swirl space 1324 and the inner swirl space 1325 can be implemented as a structure that guides the water flow to form a vortex or swirling flow, including but not limited to a rotating body. For example, the outer swirl space 1324 and the inner swirl space 1325 can each have any of the following structures: a circular swirl chamber, a spiral swirl chamber, a rectangular swirl chamber, a conical swirl chamber, an annular swirl chamber, or Special-shaped swirl chamber. Optionally, in some embodiments, the outer swirl space 1324 is a circular swirl chamber, and the inner swirl space 1325 is a conical swirl chamber. In order to maximize the use of the internal space of the whole machine, the actual outer swirl space 1324 can also be a cuboid space with rounded corners. Of course, in actual practice, the shapes of the outer swirl space 1324 and the inner swirl space 1325 are usually designed based on specific engineering requirements and water flow mechanics principles. Therefore, the selection of shapes may vary depending on the application, and the embodiments of the present disclosure are not limited to this. .

Although, the mesh diameter of the filter screen 1323 in the above-mentioned rotary separation filter mechanism can be designed to be relatively larger to prevent the mesh from being blocked. However, due to the uncertainty of the size of impurities in the water body, it is inevitable that some impurities of similar size to the mesh will get stuck on the mesh, causing a small number of meshes to be blocked. Therefore, in order to further reduce the risk of the mesh holes of the filter 1323 being clogged, some preferred implementations are given below.

In some embodiments, as shown in Figure 7, the above-mentioned rotary separation filter mechanism also includes: a filter cleaning device 134. The filter cleaning device 134 includes a vibration device 1341, an eccentric member 1342 and a connecting member 1343. The vibration device 1341 is fixedly installed on the filter screen. At one axial end of 1323, the eccentric member 1342 is connected to the output shaft of the vibration device 1341 and rotates together with the vibration device 1341. The connecting member 1343 is connected to the eccentric member 1342 and the filter 1323 respectively.

Specifically, the vibration device 1341 can be implemented as a vibration motor, and the eccentric 1342 can be implemented as an eccentric wheel or an eccentric block. When the vibration motor rotates, an unbalanced centrifugal force is generated due to the eccentric effect, causing vibration and transmitting the vibration force through the eccentric 1342 to the filter 1323 to remove the impurities attached to the filter 1323. Among them, the connecting member 1343 includes but is not limited to a straight rod, a curved rod, a spring or a joint component, etc. For example, when the connecting rod includes a straight rod, it is directly connected to the eccentric wheel or eccentric block of the vibration motor and extends to the filter area. However, when the connecting rod includes a curved bar, the curved bar may be curved or arcuate in design to accommodate a specific machine configuration or screen layout. When the connecting rod includes a spring, the spring can provide some flexibility and damping, helping to prevent excessive vibration from being transmitted to other components. Of course, in practice, the specific connection methods between the vibration device 1341, the eccentric member 1342 and the connecting member 1343 may include threaded connections, pin connections or other mechanical connection methods to ensure that the connection is firm and can effectively transmit the vibration force to the filter. 1323, and the vibration device 1341, the eccentric member 1342 and the connecting member 1343 can also be other structures, which are not limited to the above-exemplified embodiments, and this disclosure is not limited to this.

In some embodiments, as shown in Figure 8, the above-mentioned rotary separation filtering mechanism also includes: a filter cleaning device 134, which is disposed close to the outer wall or/and the inner wall of the filter 1323, and the filter cleaning device 134 and the filter 1323 can be Reciprocating movement relative to the axis.

Specifically, the specific implementation of the filter cleaning device 134 axially reciprocating relative to the filter 1323 to clean the filter 1323 is not unique, including but not limited to an axial drive device and a scraper, and the scraper is along the side wall of the filter 1323 Circumferentially arranged and connected to an axial driving device, the axial driving device generates a driving force along the axial direction of the filter screen 1323 to drive the scraper to reciprocate axially. During the movement, the scraper rubs against the side wall of the filter screen 1323 relative to each other. The impurities attached to the mesh are scraped off to keep the mesh unblocked, thereby avoiding clogging of the filter 1323.

For example, the axial driving device can be a pneumatic cylinder or a hydraulic cylinder, and the scraper can be an annular brush strip. Since the water flow moves from the outer swirl space 1324 to the inner swirl space 1325, the scraper can preferably be set on the filter screen 1323. On the outer side wall of the filter screen 1323, when the air cylinder or hydraulic cylinder moves back and forth, the annular brush strip is driven to move axially on the outer side wall of the filter screen 1323, scraping off the impurities adsorbed on the mesh holes, thereby cleaning the filter screen 1323. . The number of scraping brushes is at least one. Since the scraping brushes are preferably annular brush strips, when the number is two or more, each scraping brush is arranged at intervals along the axial direction of the filter screen 1323 . It is understandable that the greater the number of scrapers, the shorter the axial movement stroke, and conversely, the longer the axial movement stroke. In practice, reasonable settings can be made according to scene requirements, and the embodiments of the present disclosure do not limit this.

In some embodiments, as shown in Figure 9, the above-mentioned rotary separation filter mechanism also includes: a filter cleaning device 134, which is disposed close to the outer wall or/and the inner wall of the filter 1323, and the filter cleaning device 134 and the filter 1323 can be Relative axial rotation.

Specifically, the specific implementation of the filter cleaning device 134 rotating relative to the side wall of the filter 1323 to clean the filter 1323 is not unique, including but not limited to: the filter cleaning device 134 is fixed and the filter 1323 is rotatable; or the filter 1323 The filter cleaning device 134 is fixed and rotatable. Both methods can achieve relative rotation between the filter cleaning device 134 and the filter 1323. When relative rotation occurs, the filter cleaning device is in close contact with the side walls (including the inner wall and the outer wall) of the filter 1323. 134 scrapes off the impurities adsorbed on the mesh through frictional contact, thereby cleaning the filter 1323.

For example, for an application scenario in which the filter cleaning device 134 is fixed and the filter 1323 is rotatable, the filter cleaning device 134 includes a brush bar and a motor. The brush bar is fixedly connected to the outer swirl space 1324 or the inner swirl space 1325, and Closely attached to the side wall (including the outer wall and the inner wall) of the filter 1323, the motor is located at one axial end of the filter 1323 and is fixedly connected to the outer swirl space 1324 or the inner swirl space 1325, and the filter 1323 is rotationally connected As for the output shaft of the motor, when the motor rotates, it can drive the filter screen 1323 to rotate, so that the brush bar can wipe away the impurities attached to the filter screen 1323.

For another example, in a scenario where the filter 1323 is fixed and the filter cleaning device 134 is rotatable, the filter cleaning device 134 includes a brush bar and a motor, and the brush bar is tightly attached to the side wall (including the outer side wall and the inner side wall) of the filter screen 1323 , and is rotationally connected to the output shaft of the motor. The motor is located at one axial end of the filter 1323 and is fixedly connected to the outer swirl space 1324 or the inner swirl space 1325. The filter 1323 is fixedly connected to the outer swirl space 1324 and the inner side. Between the swirl spaces 1325, when the motor rotates, the brush bar can be driven to rotate circumferentially along the side wall of the filter screen 1323, so that the brush bar can wipe away impurities attached to the filter screen 1323.

In the above two relative rotation scenario embodiments, the motor provides active driving force to drive the brush bar or filter 1323 to rotate, so that the brush bar can erase impurities on the side walls of the filter 1323. In practice, the timing of the brush bar erasing impurities can be controlled manually or automatically. Optionally, the filter cleaning device 134 also includes a controller, which is connected to the motor and used to control the operation of the motor. The controller here may be the electronic control unit 112 in the body 110 , or may be an independent controller connected to the electronic control unit 112 . When controlled manually, a switch can be set to send instructions to the controller, and the controller controls the motor to drive the brush bar and the filter 1323 to rotate relative to each other according to the instructions, so that the brush bar wipes away impurities on the side walls of the filter 1323; when controlled automatically At this time, a preset computer program can be run on the controller, and the motor-driven brush bar and the filter 1323 can be automatically controlled to rotate relative to each other according to the computer program, so that the brush bar can erase impurities on the side walls of the filter 1323. Among them, the controller's control of the motor includes but is not limited to the rotation duration and rotation frequency of the motor.

In some embodiments, as shown in Figure 10, the filter cleaning device 134 includes an impeller 1344 and an impeller 1345. The impeller 1344 is disposed at a position where the water inlet channel 1321 communicates with the outer swirl space 1324, and is fixed and rotated along the axial direction of the filter 1323. , the impeller 1345 is arranged along the axial direction of the filter screen 1323 and is closely attached to the side wall of the filter screen 1323, and the impeller 1345 is fixedly connected to the impeller 1344. When the water flow rotates in the outer swirl space 1324, the impeller 1344 is driven to rotate, causing the impeller to rotate. 1344 drives the impeller 1345 to rotate circumferentially along the side wall of the filter 1323 to wipe away the impurities on the side wall.

Specifically, the impeller 1344 is disposed at a position where the water inlet channel 1321 communicates with the outer swirl space 1324, which is equivalent to the water flowing into the outer swirl space 1324 along the tangential direction of the edge of the impeller 1344. Under the impact and rotation of the water flow, The impeller 1344 will rotate in the direction of the water flow rotation, thereby driving the impeller 1345 to rotate together, causing the impeller 1345 to move circumferentially along the side wall of the filter screen 1323. Since the impeller 1345 is tightly attached to the side wall, it can remove the particles attached to the filter screen 1323. Impurities are erased to prevent the mesh of filter 1323 from clogging.

Compared with the above-mentioned method of using a motor as the driving force, the embodiment of the present disclosure does not need to provide additional active main force, but uses the power of the water flow to generate the driving force to drive the impeller 1345 to rotate, so that the cleaning and filtering mechanism of the filter 1323 can Work synchronously to achieve the self-cleaning effect of filter 1323.

It can be seen from the above embodiments that the filter cleaning device provided by the embodiment of the present disclosure can be disposed close to the outer wall or/and the inner wall of the filter, and the filter cleaning device and the filter can reciprocate axially relative to each other. move or turn. For example, in one embodiment, the filter cleaning device includes a brush strip close to the side wall of the filter. For another example, in another embodiment, the filter cleaning device further includes an impeller. The impeller is disposed at a position where the water inlet channel communicates with the outer swirl space, and is rotated and fixed along the axial direction of the filter. The brush bar It is fixedly connected to the impeller or the impeller drives the brush bar to rotate, realizing self-driven rotation of the cleaning device, which is very environmentally friendly and energy-saving.

In practice, the impeller 1345 is preferably strip-shaped, and the number is at least one. The brush strips can be arranged in parallel, inclined or circumferentially along the axial direction of the filter screen 1323 . For example, when there is one impeller 1345, the impeller 1345 is axially parallel or obliquely attached to the outer wall of the filter 1323; when there are two impellers 1345, the two impellers 1345 are in the circumferential direction of the filter 1323. The impellers 1345 are arranged at intervals, and the impellers 1345 are parallel or obliquely attached to the outer wall relative to the axial direction of the filter 1323; when there are more than two impellers 1345, each impeller 1345 is arranged at intervals in the circumferential direction of the filter 1323, and each The impeller 1345 is parallel or inclined to the axial direction of the filter screen 1323 and is closely attached to the outer wall.

It is worth mentioning that when the filter cleaning device 134 is added, the mesh aperture on the filter can be designed to be relatively small in order to isolate more impurities in the outer rotation space. Since the mesh aperture is relatively small, more impurities will easily adhere to the mesh. Therefore, the filter cleaning device 134 can be used to erase the impurities attached to the filter mesh, which not only prevents impurities from damaging the mesh holes on the filter mesh, but also prevents impurities from damaging the mesh. The blockage that affects the filtration effect can also filter more impurities of smaller dimensions, making the filter mechanism more thoroughly filter impurities in the water flow.

In some embodiments, the bottoms of the outer swirl space 1324 and the inner swirl space 1325 are respectively provided with openable and closable valves. When the valves are opened, the leaked water flow rotates and separates in the outer swirl space 1324 and the inner swirl space 1325. impurities coming out.

Specifically, the outer swirl space 1324 and the inner swirl space 1325 can share a valve, or they can be provided with separate valves, which is not limited in the embodiment of the present disclosure. Referring to Figure 4, the outer swirl space 1324 may include a bottom cover 1326 and a top cover 1327. The bottom cover 1326 and the top cover 1327 are detachably and sealingly connected to the upper and lower ends of the outer swirl space 1324, wherein the bottom cover 1326 or the top cover 1326 1327 can be used as a valve. In actual use, due to the effect of gravity, the impurities separated in the outer swirl space 1324 and the inner swirl space 1325 will fall to the bottom. When the impurities reach a certain amount, they need to be swirled from the outside. The impurities separated from the outer swirl space 1324 and the inner swirl space 1325 should be cleaned regularly through valves.

In practice, the filtering mechanism on the cleaning device 100 can be designed as a detachable structure or as a fixed structure. When the filtering mechanism is detachably fixed on the cleaning equipment 100, each of the first-stage filtering mechanism 131, the second-stage filtering mechanism 132, and the fluid pumping device 133 can be detachably fixedly connected to the body of the cleaning equipment, or the third-stage filtering mechanism 131, the second-stage filtering mechanism 132, and the fluid pumping device 133 can be detachably fixed on the cleaning equipment 100. The first-stage filtering mechanism 131, the second-stage filtering mechanism 132 and the fluid pumping device 133 are detachably and fixedly connected to the body of the cleaning equipment as a whole, or the first-stage filtering mechanism 131 is separately detachably and fixedly connected to the body. , and the second-stage filter mechanism 132 and the fluid pumping device 133 are detachably and fixedly connected to the body of the cleaning equipment as a whole; or the first-stage filter and the second-stage filter mechanism 132 are detachably fixed as a whole. The fluid pumping device 133 is connected to the body of the cleaning equipment, and the fluid pumping device 133 is separately and detachably fixedly connected to the body. This is not limited in the embodiment of the present disclosure. Then, when impurities need to be cleaned, the filter mechanism can be disassembled, and then installed back after the impurities are removed, so as to facilitate and flexibly dump impurities. When the filter mechanism is fixed on the cleaning equipment 100, when impurities need to be cleaned, the valves provided in the outer swirl space 1324 and the inner swirl space 1325 can only be opened to clean the impurities together with the body. After the impurity cleaning is completed Then close the valve.

In addition, with reference to Figures 2, 4, 5 and 10, embodiments of the present disclosure also provide a filtering mechanism for use in cleaning equipment. The filtering mechanism at least includes: a first-stage filtering mechanism 131, a second-stage filtering mechanism 132 and the fluid pumping device 133, the first-stage filtering mechanism 131, the second-stage filtering mechanism 132 and the fluid pumping device 133 are connected in cascade in sequence, the water inlet is connected with the first-stage filtering mechanism 131, and the fluid pumping device 133 generates suction The force is used to pump the water flow from near the water inlet to the first-stage filtering mechanism 131 and the second-stage filtering mechanism 132 for step-by-step filtration. The first-stage filtering mechanism 131 separates impurities from the water flow in a larger size than the second-stage filtering mechanism 132 The size dimension of impurities is separated from the water flow, wherein at least one of the first-stage filtering mechanism 131 and the second-stage filtering mechanism 132 is a rotary separation filtering mechanism.

According to the technical solution provided by the embodiment of the present disclosure, the water flow pumped by the fluid pumping device 133 from the water inlet is filtered step by step through the first-stage filtering mechanism 131 and the second-stage filtering mechanism 132, and the impurities in the water flow are filtered from large to large in size. Filtering and separating in small order enables the filtering mechanism to filter impurities in the water flow more thoroughly, thus effectively improving the filtration effect of the cleaning equipment.

Optionally, the first-stage filter mechanism 131 is an inertial separation filter mechanism, and the second-stage filter mechanism 132 is a rotary separation filter mechanism.

Specifically, the inertial separation filter mechanism includes at least two straight fluid channels 1311 and an impurity receiving chamber 1312. The at least two straight fluid channels 1311 are arranged vertically above the impurity receiving chamber 1312 along the length direction. The fluid channels 1311 are connected side by side in a curved manner, and the two ends of the connected straight fluid channel 1311 are connected to the water inlet and the second-stage filtering mechanism 132 respectively. An opening is provided at the position, and the inner wall of the straight fluid channel 1311 around the opening is a tapered wall.

Specifically, the rotating separation filtering mechanism at least includes: an outer swirling space, a filter screen, and an inner swirling space. The outer swirling space is arranged outside the filtering screen and is connected to the first-stage filtering mechanism, and is output from the first-stage filtering mechanism. The water flow enters the outer swirl space and generates a rotational motion to separate the water flow that cannot pass through the filter. The inner swirl space is set inside the filter and is connected to the fluid pumping device 133. The water flow passing through the filter enters the inner swirl. The space generates secondary rotational motion to separate impurities in the water flow.

The combination of the above-mentioned inertial separation and filtering mechanism and the rotary separation and filtering mechanism can first separate the impurities with larger dimensions in the water flow, and then filter the impurities with smaller dimensions in layers, realizing the filtering mechanism to gradually filter the impurities in the water flow. The effect of stage separation can more thoroughly separate impurities in the filtered water flow, improving the filtration effect of the filtration mechanism.

Optionally, the rotary separation filter mechanism also includes: a filter cleaning device. The filter cleaning device includes an impeller and a brush bar. The impeller is arranged at a position where the water inlet channel communicates with the outer swirl space, and is fixed and rotated along the axial direction of the filter. , the brush bar is arranged along the axial direction of the filter screen and closely attached to the side wall of the filter screen. The brush bar is fixedly connected to the impeller or the impeller drives the brush bar to rotate. When the water flow rotates in the outer swirl space, the impeller is driven Rotate so that the impeller drives the brush bar to rotate circumferentially along the side wall of the filter to wipe away impurities on the side wall.

In the embodiment of the present disclosure, the filter cleaning device 134 can be used to erase impurities attached to the filter, which not only prevents impurities from clogging the holes on the filter and affecting the filtering effect, but also can filter more smaller dimensions. The effect of impurities makes the filtering mechanism more thoroughly filter the impurities in the water flow.

The above are only preferred embodiments of the present disclosure and are not intended to limit the present disclosure. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present disclosure shall be included in the protection scope of the present disclosure. Inside.

Claims (13)

1. A cleaning equipment, characterized in that it includes: a body, a filtering mechanism and a traveling mechanism. The body is provided with at least one water inlet. The filtering mechanism at least includes: a first-stage filtering mechanism and a second-stage filtering mechanism. and a fluid pumping device, the first-stage filtering mechanism, the second-stage filtering mechanism and the fluid pumping device are connected in sequence, the water inlet is connected to the first-stage filtering mechanism, and the fluid pumping device generates suction force to The water flow is pumped from near the water inlet to the first-stage filtering mechanism and the second-stage filtering mechanism for step-by-step filtration. The size and dimension of the impurities separated by the first-stage filtering mechanism from the water flow are larger than those of the second-stage filtering mechanism. The size dimension of the impurities separated from the water flow, wherein the first-stage filtering mechanism is an inertial separation and filtering mechanism, and the second-stage filtering mechanism is a rotary separation and filtering mechanism. 2. The cleaning equipment according to claim 1, characterized in that the inertial separation and filtering mechanism includes at least two straight fluid channels and an impurity receiving cavity, and the at least two straight fluid channels are vertically aligned along the length direction. Arranged above the impurity storage chamber, the at least two straight fluid channels are connected side by side in a curved manner, and the two ends of the connected straight fluid channels are respectively connected with the water inlet and the second-stage filtering mechanism. The fluid channel is provided with an opening at a curved communication position close to the side of the impurity storage chamber, and the inner wall of the straight fluid channel around the opening is a tapered wall. 3. The cleaning equipment according to claim 2, characterized in that the bending angle of two adjacent straight fluid channels at the bending communication position is greater than 90°. 4. The cleaning device according to claim 2, characterized in that the taper of the tapered wall is 10°-20°. 5. The cleaning equipment according to any one of claims 1 to 4, characterized in that the rotating separation and filtering mechanism at least includes: an outer swirl space, a filter screen and an inner swirl space, the outer swirl space It is arranged on the outside of the filter screen and is connected to the first-stage filter mechanism. The water flow output from the first-stage filter mechanism enters the outer swirl space and generates a rotational movement to separate the water flow that cannot pass through the filter screen. The inner swirl space is arranged inside the filter screen and is connected to the fluid pumping device. The water flow passing through the filter screen enters the inner swirl space and generates a secondary rotational motion to separate impurities in the water flow. 6. The cleaning equipment according to claim 5, characterized in that the rotary separation filtering mechanism further includes: a filter cleaning device, the filter cleaning device includes a vibration device, an eccentric piece and a connecting piece, the vibration device It is fixedly installed at one axial end of the filter screen. The eccentric part is connected to the output shaft of the vibration device and rotates with the vibration device. The connecting part is connected to the eccentric part and the filter screen respectively. 7. The cleaning equipment according to claim 5, characterized in that the rotary separation filtering mechanism further includes: a filter cleaning device, which is arranged close to the outer side wall or/and the inner side wall of the filter mesh, and the filter mesh The mesh cleaning device and the filter mesh can reciprocate or rotate relative to the axial direction. 8. The cleaning equipment according to claim 7, characterized in that the filter cleaning device includes a brush strip close to the side wall of the filter. 9. The cleaning equipment according to claim 8, characterized in that the filter cleaning device further includes an impeller, the impeller is arranged at a position where the water inlet flow channel communicates with the outer swirl space, and is arranged along the axial direction of the filter screen. The brush bar is fixedly connected to the impeller or the impeller drives the brush bar to rotate. 10. The cleaning equipment according to claim 9, characterized in that the number of the brush strips is at least one, and each brush strip is arranged on the side wall of the filter screen in a parallel, inclined or circumferential manner relative to the axial direction. 11. A filtering mechanism, used in cleaning equipment, characterized in that the filtering mechanism at least includes: a first-stage filtering mechanism, a second-stage filtering mechanism and a fluid pumping device, the first-stage filtering mechanism, the second-stage filtering mechanism and a fluid pumping device. The filter mechanism and the fluid pumping device are connected in sequence, the water inlet is connected to the first-stage filter mechanism, and the fluid pumping device generates suction force to pump the water flow from near the water inlet to the first-stage filter mechanism and the second-stage filter mechanism. The filtering mechanism performs step-by-step filtration, and the size dimension of the impurities separated by the first-stage filtering mechanism from the water flow is larger than the size dimension of the impurities separated by the second-stage filtering mechanism from the water flow, wherein the first-stage filtering mechanism separates impurities from the water flow. The first-stage filtering mechanism is an inertial separation and filtering mechanism, and the second-stage filtering mechanism is a rotary separation and filtering mechanism. 12. The filter mechanism according to claim 11, characterized in that; The inertial separation and filtering mechanism includes at least two straight fluid channels and an impurity receiving chamber. The at least two straight fluid channels are arranged vertically above the impurity receiving chamber along the length direction. The at least two straight fluid channels The channels are curved and connected end to end side by side, and the two ends of the connected straight fluid channel are connected to the water inlet and the second-stage filtering mechanism respectively. The straight fluid channel is provided with an opening at a curved connection position close to the side of the impurity storage chamber. , the inner wall of the straight fluid channel around the opening is a tapered wall; The rotary separation and filtering mechanism at least includes: an outer swirl space, a filter screen and an inner swirl space. The outer swirl space is arranged outside the filter screen and is connected to the first-stage filter mechanism. The water flow output by the filtering mechanism enters the outer swirl space and generates a rotational movement to separate the water flow that cannot pass through the filter screen. The inner swirl space is arranged inside the filter screen and is connected to the fluid pumping device. , the water flow passing through the filter enters the inner swirl space and generates a secondary rotational motion to separate the impurities in the water flow. 13. The filter mechanism according to claim 12, wherein the rotary separation filter mechanism further includes: a filter cleaning device, the filter cleaning device includes an impeller and a brush bar, and the impeller is disposed in the water inlet flow. The position where the channel is connected to the outer swirl space is rotated and fixed along the axial direction of the filter screen. The brush bar is arranged along the axial direction of the filter screen and closely attached to the side wall of the filter screen. The brush bar is fixedly connected to the impeller. Or the impeller drives the brush bar to rotate. When the water flow rotates in the outer swirl space, the impeller is driven to rotate, so that the impeller drives the brush bar to rotate circumferentially along the side wall of the filter screen to wipe away impurities on the side wall.