CN218606387U

CN218606387U - Turn to stop device and cleaning equipment

Info

Publication number: CN218606387U
Application number: CN202222585566.8U
Authority: CN
Inventors: 肖毅; 何国徽
Original assignee: Shenzhen Pudu Technology Co Ltd
Current assignee: Shenzhen Pudu Technology Co Ltd
Priority date: 2022-09-28
Filing date: 2022-09-28
Publication date: 2023-03-14
Anticipated expiration: 2032-09-28

Abstract

The utility model relates to a turn to stop device and cleaning equipment, turn to stop device and include: the steering wheel comprises a steering shaft, a first connecting part and a second connecting part, wherein one end of the steering shaft is used for mounting a steering wheel main body and is provided with the first connecting part; the fixing frame is provided with a sliding groove, and the steering shaft penetrates through the fixing frame; the locating part, the locating part is located in the spout, the locating part cover is located on the steering spindle, just the locating part is equipped with second cooperation portion, first cooperation portion with second cooperation portion transmission cooperation, the steering spindle is used for ordering about the locating part is in the spout moves, just the diapire of spout be used for with the locating part is spacing cooperation. Above-mentioned turn to stop device, cleaning equipment's directive wheel and steering wheel have only linear relation, realize good control and turn to angle and turn to the radius, avoid misoperation to cause the emergence of incident such as collision, are favorable to improving the reliability and the security that turn to the operation.

Description

Turn to stop device and cleaning equipment

Technical Field

The utility model relates to a cleaning device technical field especially relates to a turn to stop device and cleaning device.

Background

The steering wheel is used as a main control module for controlling the driving and steering of cleaning equipment such as a sweeper, a floor washer and the like, and the common control modes include a mechanical mode, a hydraulic mode, an electronic control mode and the like. However, in the existing cleaning apparatus, the steering wheel is generally a mechanical steering type, the steering wheel controls the steering of the vehicle head through the rack-and-pinion type steering gear and the circulating ball type steering gear, the operation is heavy, the occupied space is large, the performance is not good, and safety accidents may be caused due to low steering precision. Meanwhile, some electronic control type steering wheels are not provided with safety protection structures and touch feedback, so that the angles of the steering wheels are not uniquely corresponding, an operator is difficult to accurately determine the specific direction of the steering wheels, the actual steering angle of the steering wheels is not clear after the operator operates the steering wheels, and safety accidents such as misoperation and even collision are easily caused.

SUMMERY OF THE UTILITY MODEL

Therefore, a steering limiting device and a cleaning device are needed to be provided, so that the reliability and the safety of steering operation can be effectively improved, and accidents are avoided.

The technical scheme is as follows: a steering limit device, comprising: the steering wheel comprises a steering shaft, a first connecting part and a second connecting part, wherein one end of the steering shaft is used for mounting a steering wheel main body and is provided with the first connecting part; the steering shaft is arranged on the fixing frame in a penetrating manner; the locating part, the locating part is located in the spout, the locating part cover is located on the steering spindle, just the locating part is equipped with second cooperation portion, first cooperation portion with second cooperation portion transmission cooperation, the steering spindle is used for ordering about the locating part is in the spout motion, just the diapire of spout be used for with the spacing cooperation of locating part.

Above-mentioned turn to stop device, when the staff operated the steering wheel, the steering spindle rotated, because the transmission cooperation of first cooperation portion and second cooperation portion, the locating part that is located the spout moved along the length direction of steering spindle, it is spacing to form when the locating part slided the spout bottom, the steering wheel steering spindle can not continue to rotate this moment, make cleaning device's directive wheel and steering wheel have unique linear relation, realize good control angle of turning and radius of turning, avoid misoperation to cause the emergence of incident such as collision, be favorable to improving reliability and the security of turning to the operation.

In one embodiment, the steering limiting device further includes a bearing seat, the bearing seat is sleeved on the steering shaft, the bearing seat is connected with the fixing frame, a first side surface of the bearing seat covers a notch of the sliding groove, and the first side surface is in limit fit with the limiting part.

In one embodiment, the steering shaft is provided with a limiting protrusion, and the limiting protrusion is in limiting fit with a second side surface, back to the limiting member, of the bearing seat.

In one embodiment, the steering limiting device further includes a retaining ring, the retaining ring is sleeved on the steering shaft, and the retaining ring is disposed on the first side surface of the bearing seat close to the limiting member.

In one embodiment, the first matching portion is a screw thread, the limiting member is a limiting nut, and the limiting nut is in threaded connection with the steering shaft to realize transmission matching.

In one embodiment, the steering limiting device further comprises a damper, the damper is connected with the fixing frame, and the damper is sleeved on the steering shaft and is in rotating connection with the steering shaft.

In one embodiment, the steering limiting device further comprises an encoder, an output end of the encoder is connected with one end of the steering shaft, and the encoder is used for detecting the rotation angle of the steering shaft.

In one embodiment, the steering limiting device further comprises a support frame, and the encoder is connected with the fixing frame through the support frame.

In one embodiment, the steering limiting device further comprises a mounting bracket, the mounting bracket is provided with a mounting wall, and the fixing frame is connected with the mounting wall.

In one embodiment, the steering limiting device further comprises an outer cover, the outer cover is provided with a mounting cavity and an opening which are communicated with each other, the mounting support is arranged in the mounting cavity, and the steering shaft penetrates through the opening and is connected with the steering wheel main body.

A cleaning device comprises a steering wheel main body and a steering limiting device, wherein the steering wheel main body is connected with a steering shaft.

Above-mentioned cleaning device, when the staff operates the steering wheel, the steering spindle rotates, because the transmission cooperation of first cooperation portion and second cooperation portion, the locating part that is located the spout moves along the length direction of steering spindle, it is spacing to form when the locating part slides to the spout bottom, steering wheel steering spindle can not continue to rotate this moment, make cleaning device's directive wheel and steering wheel have unique linear relation, realize good control angle of turning and radius of turning, avoid misoperation to cause the emergence of incident such as collision, be favorable to improving reliability and the security of steering operation.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is an exploded view of a steering limiter according to an embodiment;

FIG. 2 is a schematic view of an internal structure of the steering limiter according to an embodiment;

FIG. 3 is a schematic diagram of a mounting bracket according to an embodiment;

fig. 4 is a schematic structural diagram of the housing according to an embodiment.

Description of reference numerals:

100. a steering limiting device; 110. a steering shaft; 111. a bearing seat; 112. a limiting bulge; 113. a first mating portion; 120. a fixed mount; 121. a retainer ring; 122. a chute; 130. a stopper; 131. a second mating portion; 140. a damper; 150. an encoder; 151. a support frame; 160. mounting a bracket; 161. a mounting wall; 170. a housing; 171. an opening; 200. a steering wheel main body.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present application, unless expressly stated or limited otherwise, a first feature "on" or "under" a second feature may be directly contacting the second feature or the first and second features may be indirectly contacting the second feature through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1 and 2, fig. 1 is an exploded view of a steering limiting device 100 according to an embodiment of the present invention; fig. 2 shows the schematic diagram of the internal structure of the steering limiting device 100 in an embodiment of the present invention, an embodiment of the present invention provides a steering limiting device 100, where the steering limiting device 100 includes: a steering shaft 110, a fixing frame 120 and a limiting member 130. One end of the steering shaft 110 is used for mounting the steering wheel main body 200, the steering shaft 110 is provided with a first matching portion 113, the fixing frame 120 is provided with a sliding groove 122, and the steering shaft 110 penetrates through the fixing frame 120. The limiting member 130 is located in the sliding slot 122, the limiting member 130 is sleeved on the steering shaft 110, the limiting member 130 is provided with a second matching portion 131, and the first matching portion 113 is in transmission matching with the second matching portion 131. The steering shaft 110 is used for driving the limiting member 130 to move in the sliding slot 122, and the bottom wall of the sliding slot 122 is used for limiting and matching with the limiting member 130.

According to the steering limiting device 100, when a worker operates the steering wheel main body 200, the steering shaft 110 rotates, due to the transmission fit of the first matching portion 113 and the second matching portion 131, the limiting member 130 located in the sliding groove 122 moves along the length direction of the steering shaft 110, and is limited when the limiting member 130 slides to the bottom of the sliding groove 122, at the moment, the steering shaft 110 of the steering wheel cannot continue to rotate, so that the steering wheel of the cleaning device and the steering wheel main body 200 have a unique linear relation, the steering angle and the steering radius are well controlled, accidents such as collision caused by misoperation are avoided, and the reliability and the safety of steering operation are improved.

In one embodiment, referring to fig. 1 and fig. 2, the steering limiting device 100 further includes a bearing seat 111, the bearing seat 111 is sleeved on the steering shaft 110, the bearing seat 111 is connected to the fixing frame 120, a first side surface of the bearing seat 111 covers a notch of the sliding slot 122, and the first side surface is in limiting fit with the limiting member 130. Specifically, the bearing housing 111 is a biaxial bearing housing 111. Thus, on one hand, the bearing seat 111 can support the steering shaft 110, and facilitates the installation and smooth rotation of the steering shaft 110. On the other hand, the bearing seat 111 is mounted on the fixing frame 120, and the first side surface of the bearing seat 111 and the limiting member 130 form a limiting position, so that the two rotation directions of the steering wheel main body 200 are limited, and the steering safety and reliability are further improved.

In one embodiment, referring to fig. 1 and fig. 2, the steering shaft 110 is provided with a limiting protrusion 112, and the limiting protrusion 112 is in limiting fit with a second side surface of the bearing seat 111 facing away from the limiting member 130. Thus, the limiting protrusion 112 is in limiting fit with the second side surface, so that a positioning effect can be achieved for the installation of the bearing seat 111, and meanwhile, the steering shaft 110 is prevented from generating axial displacement, so that the structural stability of the steering limiting device 100 is improved.

In one embodiment, referring to fig. 1 and fig. 2, the steering limiting device 100 further includes a retaining ring 121, the retaining ring 121 is sleeved on the steering shaft 110, and the retaining ring 121 is disposed on a first side surface of the bearing seat 111 close to the limiting member 130. Thus, through the limit matching of the retainer ring 121 and the limiting member 130, the bearing seat 111 can be prevented from being worn, the service life of the bearing seat 111 is prolonged, and the overall quality and the working reliability of the steering limiting device 100 are improved.

Alternatively, the driving fit of the first fitting portion 113 and the second fitting portion 131 may be a threaded engagement, a gear engagement, a belt drive, a chain drive, or other fitting.

In one embodiment, referring to fig. 1 and fig. 2, the first engaging portion 113 is a screw thread, the limiting member 130 is a limiting nut, and the limiting nut is connected to the steering shaft 110 by a screw thread to realize transmission engagement. So, steering spindle 110 with limit nut forms the screw rod transmission pair, and the rotation of steering spindle 110 turns into limit nut's axial rectilinear motion to make retaining ring 121 and spout 122 diapire to limit nut's relative both sides formation, thereby realize the angle that turns to of restriction directive wheel. Moreover, according to the functional requirements, the requirements of controlling different steering angles can be met only by changing the length of the sliding groove 122, and the steering angle control device is reliable and simple. The present embodiment provides only a specific transmission manner of the first engaging portion 113 and the second engaging portion 131, but not limited thereto.

In one embodiment, referring to fig. 1 and 2, the steering limiting device 100 further includes a damper 140, the damper 140 is connected to the fixing frame 120, and the damper 140 is sleeved on the steering shaft 110 and rotatably connected to the steering shaft 110. Thus, the damper 140 provides damping to the steering shaft 110, which is beneficial to ensuring that the steering wheel has smooth and uniform force operation hand feeling, avoiding over-large steering wheel inertia, and improving the steering sensitivity of the cleaning device.

In one embodiment, referring to fig. 1 and 2, the steering limiting device 100 further includes an encoder 150, an output end of the encoder 150 is connected to one end of the steering shaft 110, and the encoder 150 is used for detecting a rotation angle of the steering shaft 110. Therefore, the absolute encoder 150 records the rotation angle information of the steering wheel and transmits the rotation angle information to the steering wheel, and the steering wheel can realize accurate steering according to the steering angle of the steering wheel by comparing the encoder 150 data of the steering wheel with the encoder 150 data of the steering wheel.

In one embodiment, referring to fig. 1 and 2, the steering limiting device 100 further includes a supporting frame 151, and the encoder 150 is connected to the fixing frame 120 through the supporting frame 151. Thus, the support frame 151 can facilitate installation of the encoder 150, thereby improving connection stability and installation stability of the encoder 150 and the steering shaft 110. Specifically, the supporting frame 151 is detachably connected to the fixing frame 120 by screws.

Referring to fig. 3, fig. 3 is a schematic structural diagram of a mounting bracket 160 according to an embodiment of the present invention, in one embodiment, the steering limiting device 100 further includes the mounting bracket 160, the mounting bracket 160 is provided with a mounting wall 161, and the fixing frame 120 is connected to the mounting wall 161. Specifically, the mounting bracket 160 is made of sheet metal. Thus, the mounting bracket 160 is beneficial to improving the overall structural strength of the steering limiting device 100, is beneficial to improving the structural stability, and has compact space and installation space saving. Specifically, opposite sides of the fixing frame 120 are fixed to the mounting wall 161 by screws.

Referring to fig. 4, fig. 4 shows a schematic structural diagram of the outer cover 170 according to an embodiment of the present invention, in an embodiment, the steering limiting device 100 further includes the outer cover 170, the outer cover 170 is provided with a mounting cavity and an opening 171 which are mutually communicated, the mounting bracket 160 is disposed in the mounting cavity, and the steering shaft 110 is used for penetrating through the opening 171 and is connected with the steering wheel main body 200. Therefore, the outer cover 170 can protect the steering limiting device 100, prevent structures such as the steering shaft 110, the bearing seat 111, the limiting member 130 and the like from being exposed to ash and water, and improve the operation reliability of the steering limiting device 100. On the other hand, the outer cover 170 is beneficial to improving the overall appearance of the cleaning device, manufacturing the cleaning device into different shapes and improving the quality of the cleaning device. Specifically, the plurality of mounting locations of the mounting bracket 160 are coupled to the housing 170 by screws.

In one embodiment, a cleaning apparatus includes a steering wheel main body 200 and a steering limiting device 100 as described above, the steering wheel main body 200 being connected to a steering shaft 110.

Above-mentioned cleaning equipment, when the staff operates steering wheel main part 200, steering shaft 110 rotates, because the transmission cooperation of first cooperation portion 113 and second cooperation portion 131, locating part 130 that is located in spout 122 moves along the length direction of steering shaft 110, it is spacing to form when locating part 130 slides to the spout 122 bottom, steering wheel steering shaft 110 can not continue to rotate this moment, make cleaning equipment's directive wheel and steering wheel main part 200 have unique linear relation, realize good control angle of turning and turn to the radius, avoid the emergence of incident such as misoperation initiation collision, be favorable to improving the reliability and the security of steering operation.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a turn to stop device which characterized in that, turn to stop device and include:

the steering wheel comprises a steering shaft, a first connecting piece and a second connecting piece, wherein one end of the steering shaft is used for mounting a steering wheel main body and is provided with a first matching part;

the steering shaft is arranged on the fixing frame in a penetrating manner;

the locating part, the locating part is located in the spout, the locating part cover is located on the steering spindle, just the locating part is equipped with second cooperation portion, first cooperation portion with second cooperation portion transmission cooperation, the steering spindle is used for ordering about the locating part is in the spout moves, just the diapire of spout be used for with the locating part is spacing cooperation.

2. The steering limiting device according to claim 1, further comprising a bearing seat, wherein the bearing seat is sleeved on the steering shaft, the bearing seat is connected with the fixing frame, a first side face of the bearing seat covers a notch of the sliding groove, and the first side face is in limiting fit with the limiting part.

3. The steering limiting device according to claim 2, wherein the steering shaft is provided with a limiting protrusion, and the limiting protrusion is in limiting fit with a second side surface, back to the limiting member, of the bearing seat; and/or the presence of a gas in the gas,

the steering limiting device further comprises a check ring, the check ring is sleeved on the steering shaft, and the check ring is arranged on the first side face, close to the limiting part, of the bearing seat.

4. The steering limiting device according to claim 1, wherein the first engaging portion is a screw thread, the limiting member is a limiting nut, and the limiting nut is in threaded connection with the steering shaft to achieve transmission engagement.

5. The steering limiting device of claim 1, further comprising a damper, wherein the damper is connected to the fixing frame, and the damper is sleeved on the steering shaft and is rotatably connected to the steering shaft.

6. The steering limiter according to claim 1, further comprising an encoder, an output end of the encoder being connected to one end of the steering shaft, the encoder being configured to detect a rotation angle of the steering shaft.

7. The steering limiting device of claim 6, further comprising a support frame, wherein the encoder is connected to the fixed frame through the support frame.

8. The steering limiting device of claim 1, further comprising a mounting bracket, wherein the mounting bracket is provided with a mounting wall, and the fixing bracket is connected with the mounting wall.

9. The steering limiting device according to claim 8, further comprising an outer cover, wherein the outer cover is provided with a mounting cavity and an opening which are communicated with each other, the mounting bracket is arranged in the mounting cavity, and the steering shaft penetrates through the opening and is connected with the steering wheel main body.

10. A cleaning device comprising a steering wheel body and a steering limiting device as claimed in any one of claims 1 to 9, the steering wheel body being connected to the steering shaft.