Disclosure of Invention
The embodiment of the invention provides a drain valve and a washing machine, which can prevent thread scraps from being wound on a rotating shaft of a driving structure when washing water is discharged, reduce the risks of failure of the driving device and blockage of the drain valve, and improve the working reliability of the drain valve.
In order to achieve the above purpose, the embodiment of the present invention adopts the following technical scheme:
In a first aspect, an embodiment of the present invention provides a drain valve, including a valve body and a valve core rotatably connected to the valve body; the valve body comprises a water inlet and a water outlet, the water inlet is positioned on the top surface of the valve body, and the water outlet is positioned on the side surface of the valve body; the valve core comprises a diversion trench and a sealing surface, when the drain valve is in an open state, one end of the diversion trench extends to the water inlet, and the other end extends to the water outlet; and the valve core is rotated, the sealing surface seals the water inlet, and the drain valve is in a closed state.
In the drain valve as described above, the valve core includes a body and a rotary shaft connected to the valve body; the body is provided with the diversion trench on one side, and the sealing surface is formed on one side opposite to the diversion trench.
In the drain valve, as described above, the body includes a deflector and a sealing plate fixedly connected; the sealing plate comprises a sealing part forming the sealing surface and mounting parts positioned at two ends of the sealing part; the guide plates are fixed on the inner side walls of the mounting parts, and the guide plates are recessed towards the sealing parts to form the guide grooves; the rotating shaft is positioned on the outer side wall of the mounting part.
In the drain valve, the diversion trench is an arc-shaped trench.
In the drain valve as described above, the drain valve includes an electric driving device connected to the rotation shaft; the electric driving device comprises a motor and a coupler, wherein the valve body is provided with a mounting seat for fixing the motor, one end of the coupler extends into the valve body to be connected with the rotating shaft, and the other end of the coupler protrudes out of the valve body to be connected with the motor.
In the above drain valve, the valve body is a rectangular shell, and includes a top surface, a bottom surface, two oppositely disposed first side surfaces, and two oppositely disposed second side surfaces; the water inlet is positioned on the top surface, the water outlet is positioned on the first side surface, and the electric driving device is arranged on the second side surface.
In the drain valve, an elastic sealing element is arranged on the end face of the water inlet, facing the valve core, and the elastic sealing element is in contact with the sealing surface.
In the drain valve, the valve core is provided with the positioning block close to the bottom of the valve body, and when the diversion trench is communicated with the water inlet and the water outlet, the positioning block is abutted to the bottom of the valve body.
In a second aspect, an embodiment of the present invention provides a washing machine including a fixing bracket and the drain valve; the drain valve is arranged in the washing machine through the fixed bracket; the drain valve comprises a valve body, a water inlet pipe and a water outlet pipe, the water outlet pipe is communicated with a water outlet positioned on the first side surface of the valve body, one end of the water inlet pipe is communicated with a water outlet of the washing machine, and the other end of the water inlet pipe is communicated with the water inlet positioned on the top surface of the valve body; the fixed support is provided with a mounting hole for the water outlet pipe to be clamped, and one side surface, opposite to the water outlet pipe, of the valve body is bonded and fixed with the fixed support.
In the washing machine, the valve body is symmetrically provided with two positioning buckles, and the two positioning buckles are positioned on the first side surface of the valve body; the fixed support is provided with a limit flange around the mounting hole, and the limit flange forms a limit groove matched with each positioning buckle; the positioning buckle is clamped into the limiting groove and is abutted against the limiting flange.
Compared with the related art, the drain valve and the washing machine provided by the embodiment of the invention have the following advantages;
the embodiment of the invention provides a drain valve and a washing machine, wherein the drain valve comprises a valve body and a valve core which is positioned in the valve body and rotates relative to the valve body; the valve core comprises a diversion trench and a sealing surface, wherein one end of the diversion trench is communicated with the water inlet of the valve body when the washing water is discharged, and the other end of the diversion trench is communicated with the water outlet of the valve body, so that the washing water can directionally flow along the diversion trench in the valve body and be discharged outside the washing machine; otherwise, when the washing water is not required to be discharged, the valve core is rotated to enable the sealing surface to be sealed with the water inlet of the valve body, and the drain valve is in a closed state; because the valve core is provided with the diversion trench, the washing water flowing into the valve body can directionally flow along the diversion trench, and the phenomenon that the thread scraps in the washing water are wound on the driving device due to irregular movement in the valve body is avoided, so that the risk that the driving device fails and blocks the drain valve is reduced, and the working reliability of the drain valve is improved.
In addition to the technical problems, features constituting the technical solutions, and advantageous effects caused by the technical features of the technical solutions described above, the drain valve and other technical problems that the washing machine provided by the present invention can solve, other technical features included in the technical solutions, and advantageous effects caused by the technical features will be described in further detail in the detailed description of the present invention.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings which are required in the embodiments of the invention or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only a part of the embodiments of the invention, and that other drawings can be obtained from these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a drain valve according to an embodiment of the present invention;
Fig. 2 is a left side view of a drain valve according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
fig. 4 is a schematic structural diagram of a valve core according to an embodiment of the present invention;
FIG. 5 is a second schematic structural diagram of a valve core according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of connection between a fixing bracket and a drain valve according to an embodiment of the present invention;
Fig. 7 is a schematic structural view of the fixing bracket in fig. 6.
Reference numerals illustrate:
10-a valve body; 11-water inlet;
12-water outlet; 13-positioning a buckle;
14-a mounting base; 15-top surface;
16-bottom surface; 17-a first side;
18-a second side; 20-valve core;
21-a body; 22-rotating shaft;
23-diversion trenches; 24-sealing surface;
211-a deflector; 212-sealing plate;
213-mounting portion; 214-a seal;
215-positioning blocks; 216-reinforcing rib plates;
30-an electric drive; 40-water inlet pipe;
50-a water outlet pipe; 60-coil springs;
a 70-coupling; 100-draining valve;
200-fixing a bracket; 210-a first mounting ear;
220-a second mounting ear; 230-a bottom plate;
240-mounting holes; 250-limit flanges;
260-limit groove.
Detailed Description
The bottom of the outer barrel of the washing machine is provided with a water outlet and a drain valve communicated with the water outlet; the drain valve comprises a driving device, a valve body and a valve core positioned in the valve body, wherein the driving device is arranged on the outer wall of the valve body and is connected with the valve core through a rotating shaft; the valve core can rotate in the valve body under the drive of the driving device; when the washing water in the outer cylinder needs to be discharged to the outside of the washing machine, the valve core needs to be used for removing the seal of the water inlet of the valve body, the washing water containing the thread scraps can enter the valve body, the water flow collides with the inner wall of the valve body to enable the thread scraps to irregularly move in the valve body, and part of the thread scraps can be wound on the rotating shaft to cause the driving device to stop and block the drain valve, so that the working reliability of the drain valve is reduced.
In order to solve the above problems, the valve core of the drain valve provided by the embodiment of the invention comprises the diversion trench and the sealing surface, when the washing water is required to be discharged, one end of the diversion trench is communicated with the water inlet of the valve body, and the other end of the diversion trench is communicated with the water outlet of the valve body, so that the washing water directionally flows in the valve body along the diversion trench, the phenomenon that the driving device stops rotating to block the drain valve due to winding of wire scraps on the rotating shaft can be avoided, and the working reliability of the drain valve is improved.
In order to make the above objects, features and advantages of the present invention more comprehensible, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 3, the drain valve 100 provided in the embodiment of the present invention includes a valve body 10 and a valve core 20, wherein the valve core 20 is disposed in the valve body 10 and rotatable relative to the valve body 10; wherein the valve body 10 includes a water inlet 11 and a water outlet 12, the water inlet 11 is positioned on the top surface 15 of the valve body 10 and is communicated with a water outlet of the washing machine for guiding washing water into the valve body 10; the water outlet 12 is located on a side of the valve body 10 and discharges the washing water inside the valve body 10 out of the washing machine.
The valve core 20 includes a sealing surface with which the water inlet 11 is sealed to place the drain valve 100 in a closed state; the valve core 20 further comprises a diversion trench, and the diversion trench can be positioned on the back side of the sealing surface; when the washing water is required to be discharged, the rotary valve core 20 can enable one end of the diversion trench to extend to the water inlet 11, the other end of the diversion trench to extend to the water outlet 12, and the washing water entering the valve body 10 through the water inlet 11 can flow along the diversion trench 23 in a directional manner and be discharged to the outside of the washing machine.
Illustratively, the valve body 10 may be a rectangular housing and form a receiving cavity therein, the valve body 10 including a top surface 15, a bottom surface 16, two first side surfaces 17, and two second side surfaces 18; wherein the bottom surface 16 is disposed opposite to the top surface 15, and two oppositely disposed first side surfaces 17 and two oppositely disposed second side surfaces 18 are disposed between the bottom surface 16 and the top surface 15. The water inlet 11 of the drain valve 100 is located on the top surface 15, the water outlet 12 of the drain valve 100 is located on the first side surface 17 or the second side surface 18, and the water outlet 12 may be located on the first side surface 17 in this embodiment.
As shown in fig. 4, the valve core 20 is located in the receiving chamber of the valve body 10 and is rotatably connected to the inner wall of the valve body 10; the valve core 20 comprises a body 21, a rotating shaft 22 is arranged on the body 21 towards the second side surface 18, one end, close to the body 21, of the rotating shaft 22 is fixedly connected with the body 21, and one end, far away from the body 21, of the rotating shaft 22 is hinged on the valve body 10; the rotary shaft 22 drives the body 21 to rotate in the valve body 10 under the action of external driving force, and the rotation axis of the valve core 20 is perpendicular to the second side surface 18. In addition, the two ends of the body 21 may be respectively provided with a rotating shaft 22 to improve the rotation stability of the valve core 20 in the valve body 10, the rotating shaft 22 may be directly connected to the inner wall of the valve body 10 in a rotating manner, or a supporting arm may be disposed in the valve body 10, one end of the supporting arm is perpendicular to the bottom of the valve body 10, the other end of the supporting arm is connected to the rotating shaft 22, and the rotating shaft 22 may rotate relative to the supporting arm.
The body 21 can be a sealing block, the body 21 is provided with a diversion trench 23 and a sealing surface 24, and the diversion trench 23 and the sealing surface 24 can be oppositely arranged; the sealing surface 24 can be abutted with the end face of the water inlet 11 facing the inside of the accommodating cavity and seals the water inlet 11; both ends of the diversion trench 23 may extend to the water inlet 11 and the water outlet 12, respectively, and form a directional diversion channel. For example, the sealing block forming the body 21 may be a partial sphere, the sealing block may be a 1/4 sphere, the arc surface of the partial sphere is the sealing surface 24, and the side of the sphere away from the arc surface is cut to form the diversion trench 23.
When the valve core 20 is in the horizontal state, the sealing surface 24 faces the top surface 15 and seals the water inlet 11, and the drain valve 100 is in the closed state; at this time, the valve core 20 is rotated anticlockwise by a certain angle, the diversion trench 23 on the body 21 is located between the water inlet 11 and the water outlet 12, i.e. one end of the diversion trench 23 can extend to the water inlet 11, the other end extends to the water outlet 12, and the end surfaces of the body 21 close to the water inlet 11 and the water outlet 12 keep a certain gap, so that interference between the body 21 and the valve body 10 is avoided during rotation, the gap does not influence the flow of washing water from the water inlet 11 into the diversion trench 23, and the washing water is discharged to the outside of the washing machine through the diversion trench 23 and the water outlet 12, so that the directional flow of the washing water in the interior of the valve body 10 is realized.
The drain valve 100 provided in this embodiment is provided with a valve core 20 rotating relative to the valve body 10, and a diversion trench 23 is provided on one side of the valve core 20, and a sealing surface 24 capable of sealing the water inlet 11 is provided on the other side; when the washing water is required to be discharged out of the washing machine, the valve core 20 can be rotated, one end of the diversion trench 23 is communicated with the water inlet 11, and the other end of the diversion trench is communicated with the water outlet 12, so that the washing water directionally flows in the diversion trench 23, the phenomenon that the driving device fails and the drain valve 100 is blocked due to the fact that the thread scraps in the washing water are wound on the rotating shaft 22 due to the irregular movement in the valve body 10 can be avoided, and the working reliability of the drain valve 100 is improved.
As shown in fig. 5, the valve core 20 provided in the present embodiment includes a deflector 211 and a sealing plate 212, and the deflector 211 and the sealing plate 212 are connected together; the sealing plate 212 is integrally U-shaped, and the sealing plate 212 includes two mounting portions 213 disposed opposite to each other and a sealing portion 214 disposed between the two mounting portions 213, where the sealing portion 214 may be a flat plate or an arc plate, so long as the sealing portion 214 can be ensured to seal the water inlet 11. The middle part of the guide plate 211 is recessed towards one side of the sealing part 214 to form a guide groove 23, the edge part of the guide plate 211 is bonded and fixed with the inner side wall of the mounting part 213, and a connecting rib plate is arranged between one side of the guide plate 211 towards the sealing part 214 and the sealing part 214 to strengthen the structural strength of the guide plate 211 and the sealing plate 212.
Further, the diversion trench 23 may be an arc-shaped trench, for example, if the center line of the water inlet 11 and the center line of the water outlet 12 form an included angle of 90 degrees, the arc of the arc-shaped trench may also be 1/4 arc, and the diversion trench 23 is selected to be an arc-shaped trench, so that the washing water can flow smoothly in the diversion trench 23, and the phenomenon that the impact force between the washing water and the diversion trench 23 is too large due to overlarge fluctuation of the diversion trench 23, so that the water flow can flow out of the diversion trench 23 is prevented. The baffle 211 and the sealing plate 212 may be manufactured separately and connected together, or the baffle 211 and the sealing plate 212 may be manufactured integrally. The preferred embodiment is to design the baffle 211 and the sealing plate 212 as a single structure, for example, a single structure formed by injection molding process can be used to enhance the connection strength between the baffle 211 and the sealing plate 212.
In addition, the rotating shaft 22 of the valve core 20 is located at a side of the mounting portion 213 facing the valve body 10, that is, the rotating shaft 22 and the baffle 211 are respectively connected to two sides of the mounting portion 213, and one end of the rotating shaft 22 away from the mounting portion 213 is connected to the driving device to drive the valve core 20 to rotate in the valve body 10, so as to switch the working state of the drain valve 100.
As shown in fig. 6 and referring to fig. 1, the driving device provided in the present embodiment may be a manual driving device or an electric driving device 30, and preferably, the electric driving device 30 is used to implement automatic control of the drain valve 100. The electric driving device 30 comprises a motor and a coupler 70, one end of the coupler 70 is connected with the rotating shaft 22, and the other end of the coupler 70 is connected with an output shaft of the motor, so that the valve core 20 can be driven to rotate and reset relative to the valve body 10 by forward and reverse rotation of the motor.
Illustratively, the valve body 10 includes two oppositely disposed first sides 17 and two second sides 18, with the water outlet 12 being located on either of the first sides 17, and the motor being mountable on the second sides 18. The motor is detachably mounted on the second side 18, the second side 18 is provided with a mounting seat 14 for mounting the motor, and the motor is detachably mounted on the mounting seat 14. To meet the light weight requirements of the washing machine, the mounting base 14 includes four bosses disposed on the second side 18, and the four bosses may be diagonally distributed on the second side 18; each boss is provided with a clamping groove, the motor comprises a base, a clamping block matched with the clamping groove is arranged on the base, and the motor can be clamped in the clamping groove of the boss through the clamping block, so that the motor is detachably connected to the valve body 10; the detachable connection mode of the motor and the valve body 10 is not limited to the above-mentioned fastening mode, and the motor may be mounted on the valve body 10 by means of bolt fixation.
The two ends of the coupling 70 can be connected with the output shaft of the motor and the rotating shaft 22 of the valve core 20 in a key slot mode, in order to prevent vibration generated in the operation process of the motor from being transmitted to the valve body 10, the sealing performance of the valve core 20 to the water inlet 11 and the diversion effect of the diversion trench 23 are reduced, and an elastic buffer piece is further arranged between the motor and the second side surface 18 of the valve body 10, wherein the elastic buffer piece comprises but is not limited to a coil spring 60.
Further, in order to improve the sealing performance of the valve core 20 to the water inlet 11, the washing water is prevented from leaking into the valve body 10 to affect the washing effect in the washing process of the washing machine; in this embodiment, an elastic sealing member is further sleeved on the end face of the water inlet 11 facing the valve core 20. When the sealing surface 24 of the valve core 20 is opposite to the water inlet 11 and seals the water inlet 11, the elastic sealing element is fully contacted with the sealing surface 24 and is tightly attached to the sealing surface 24 under the self-saving elastic action, so that the sealing effect between the water inlet 11 and the sealing surface 24 is enhanced; such elastomeric seals include, but are not limited to, rubber seals, such as O-rings.
As shown in fig. 5, in this embodiment, the valve core 20 further includes a positioning block 215, when two ends of the flow guiding groove 23 are respectively communicated with the water inlet 11 and the water outlet 12 of the valve body 10, the positioning block 215 is abutted against the bottom of the valve body 10, that is, the valve core 20 is rotated, when the positioning block 215 on the valve core 20 is abutted against the bottom of the valve body 10, one end of the flow guiding groove 23 is opposite to the water inlet 11, the washing water can be led to the flow guiding groove 23, the other end of the flow guiding groove 23 can be opposite to the water inlet 11, and the lower edge of the notch of the flow guiding groove 23 is flush with the lower edge of the water outlet 12, or the lower edge of the notch of the flow guiding groove 23 is slightly higher than the lower edge of the water outlet 12, so that the water in the flow guiding groove 23 can flow through the water outlet 12 to be discharged out of the washing machine.
It is understood that the positioning block 215 may be installed between the baffle 211 and the sealing portion 214; for example, the positioning block 215 may be embedded on the reinforcing rib plate 216 between the baffle 211 and the sealing portion 214. The positioning block 215 can be made of a material with a certain elastic property, and can not only provide positioning for the valve core 20, but also provide effective support and buffering, so that the valve core 20 can be kept stable in the discharged washing water, and meanwhile, the stress of the rotating shaft 22 can be relieved, and the jumping phenomenon of the rotating shaft axis of the rotating shaft 22 in the long-term use process can be prevented.
As shown in fig. 6 and 7, the embodiment of the invention also provides a washing machine, which comprises an inner cylinder and an outer cylinder communicated with the inner cylinder, wherein the inner cylinder is used as a washing cylinder, and the outer cylinder is used as a water containing cylinder; the bottom of the outer cylinder is provided with a water outlet, and the drain valve 100 is communicated with the water outlet; when the washing water needs to be discharged, the washing water is discharged outside the washing machine through the drain valve 100.
Illustratively, a fixing bracket 200 is further provided between the housing and the outer tub of the washing machine, and the fixing bracket 200 is used to mount the drain valve 100 to the bottom of the housing. The drain valve 100 includes a valve body 10 and a valve core 20 positioned in the valve body 10; the valve body 10 is a rectangular housing, which comprises a top surface 15, a bottom surface 16 opposite to the top surface 15, two first side surfaces 17 and two second side surfaces 18; wherein, the top surface 15 is provided with a water inlet 11, and the water inlet 11 is communicated with a water outlet positioned at the bottom of the outer cylinder through a water inlet pipe 40; the first side 17 is provided with a water outlet 12, and the water outlet 12 is provided with a water outlet pipe 50 to discharge the washing water to the outside of the washing machine.
The valve core 20 comprises a diversion trench 23 and a sealing surface 24, when the washing water is discharged, two ends of the diversion trench 23 are respectively opposite to the water inlet 11 and the water outlet 12, so that the washing water can directionally flow along the diversion trench 23, and the washing water flows out of the washing machine through the water outlet 12 and the water outlet pipe 50; when the discharge of the washing water is stopped, the valve body 20 is rotated, and the sealing surface 24 seals the water inlet 11.
The fixing bracket 200 has an L-shaped structure, and includes two first mounting ears 210 and second mounting ears 220 disposed opposite to each other, and a bottom plate 230 connecting the first mounting ears 210 and the second mounting ears 220; wherein, the bottom plate 230 is mounted on the bottom of the casing of the washing machine, and the first mounting lug 210 and the second mounting lug 220 are mounted on the two first side surfaces 17 of the valve body 10 respectively; the first side 17 of the valve body 10 is provided with a water outlet pipe 50, and the water outlet pipe 50 can be inserted on the fixing bracket 200 by using the water outlet pipe 50 as an insertion part.
For example, the first mounting ear 210 is provided with a mounting hole 240 that mates with the water outlet pipe 50, the water outlet pipe 50 is inserted into the mounting hole 240 of the first mounting ear 210, and the first mounting ear 210 remains attached to the first side 17; the second mounting lug 220 is attached and fixed to the first side 17 opposite to the water outlet pipe 50, and the second mounting lug 220 can be attached to the outer side wall of the first side 17; or the first side 17 is provided with an extension portion facing the fixing bracket 200, and the second mounting ear 220 may be fixed on the extension portion, and the extension portion and the second mounting ear 220 are fixed by screws.
Further, in order to improve the fixing effect of the fixing bracket 200 and the valve body 10, the first side surface 17 of the water outlet pipe 50 is provided with a plurality of positioning buckles 13, and the positioning buckles 13 are distributed at equal intervals along the circumferential direction of the water outlet pipe 50; for example, the first side 17 is symmetrically provided with two positioning catches 13. The first mounting ear 210 is circumferentially provided with a limit flange 250 along the circumferential direction of the mounting hole 240; the limiting flange 250 is provided with a notch, a limiting groove 260 is formed by removing part of the area along the direction that the notch is far away from the center of the mounting hole 240, and the limiting groove 260 is matched with the positioning buckle 13. After the water outlet pipe 50 is inserted into the mounting hole 240, the first mounting lug 210 is attached to the first side surface 17, and the positioning buckle 13 is embedded in the limiting groove 260 and is abutted to the limiting flange 250; simultaneously, the clamping tongue of the positioning buckle 13 is pressed and connected on the first mounting lug 210; thereby enhancing the fixing effect of the first mounting lug 210 and the positioning buckle 13; meanwhile, in the embodiment, the first mounting ear 210 is inserted and fixed with the water outlet pipe 50, and the second mounting ear 220 is connected with a side screw of the valve body 10, so that the fixing efficiency of the fixing bracket 200 and the water outlet valve 100 can be improved.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.