CN218640818U - Pressure relief mechanism of scrubbing vehicle - Google Patents

Abstract

The utility model is suitable for a clean technical field of vehicle. The utility model discloses a pressure relief mechanism of a scrubbing vehicle, which comprises a pressure relief cavity communicated with a pressure cavity on the surface of a scrubbing roller. When the pressure releasing device is used, the pressure releasing cavity is arranged at the corresponding position on the surface of the scrubbing roller, so that pressure generated by collecting liquid in the using process can be released through the scrubbing roller, and air bubbles, noise and the like cannot be discharged in the releasing process.

Description

Pressure relief mechanism of scrubbing vehicle

Technical Field

The utility model relates to a clean technical field of vehicle especially relates to a scrubbing car pressure relief mechanism.

Background

The vehicle is usually washed and scrubbed continuously in the process, so the cleaning efficiency is higher, however, when the washing and scrubbing roller is used for washing and scrubbing, the sponge is usually adopted on the surface of the washing and scrubbing roller, sewage is collected after the washing and scrubbing roller is extruded, meanwhile, extruded air is collected together, the pressure in a collected liquid cavity is increased, and the problem that the pressure needs to be effectively released to be solved is solved.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides a washing car pressure relief mechanism, and this washing car pressure relief mechanism can wash the air that the in-process gathering produced and advance effective release, avoids releasing the production process bubble or noise to appear simultaneously.

In order to solve the technical problem, the utility model provides a pressure relief mechanism of a washing and wiping vehicle, which comprises a pressure relief cavity communicated with a pressure cavity arranged at the corresponding position of the surface of a washing and wiping roller.

The pressure relief cavity comprises a water diversion structure which is in contact with the surface of the scrubbing roller to form watertight contact, the water diversion structure comprises a water diversion part which is in contact with the surface of the scrubbing roller, the water diversion part is in contact with the surface of the scrubbing roller, and a gap is formed between the position, far away from the position in contact with the surface of the scrubbing roller, of the water diversion part and the surface of the scrubbing roller.

Furthermore, the pressure relief mechanism of the scrubbing vehicle further comprises a cleaning mechanism, the cleaning mechanism comprises a first interference portion which forms extrusion with the surface of the scrubbing roller, the first interference portion is respectively provided with a fixing portion and a sealing portion along two circumferential sides of the surface of the scrubbing roller, and the sealing portion forms a sealing liquid exchange area on the surface of the scrubbing roller.

Further, the cleaning mechanism also comprises a water diversion structure which is connected with the sealing part and is in contact with the surface of the scrubbing roller to form watertight contact.

Further, the water diversion structure comprises a water diversion part contacted with the surface of the scrubbing roller and a water storage part connected with the contact part.

Furthermore, the water diversion part extends into the sealed liquid exchange area, the water diversion part close to the sealed liquid exchange area is in contact with the surface of the scrubbing roller, and a gap is formed between the water diversion part far away from the sealed liquid exchange area and the surface of the scrubbing roller.

Further, the pressure relief cavity is a sealing structure.

Furthermore, the pressure relief cavity also comprises an interference strip which is arranged on the surface of the scrubbing roller, is close to the surface of the vehicle, is axially parallel to the scrubbing roller and is semi-closed in the circumferential direction of the scrubbing roller.

Furthermore, the two ends of the interference strip are provided with water-holding protrusions for depositing the particle garbage.

Furthermore, the two ends of the interference strip are provided with collapse sections for releasing gas pressure, and the anti-leakage protrusions are located at the junction of the collapse sections and the interference sections, back to the inner side of the end part of the scrubbing roller and extend in the direction far away from the surface of the vehicle.

Furthermore, a pressure relief cavity is arranged between the pressure relief cavity and the pressure cavity, and a pressure relief hole is formed between the pressure relief cavity and the pressure relief cavity.

Further, the surface area of the scrub roller forming a portion of the pressure relief cavity is greater than the surface area of the scrub roller forming a portion of the sealed liquid exchange zone.

The utility model discloses pressure relief mechanism of a scrubbing vehicle, which comprises a pressure relief cavity communicated with a pressure cavity arranged on the surface of a scrubbing roller. When the pressure releasing device is used, the pressure generated by collecting liquid in the using process can be released through the scrubbing roller by arranging the pressure releasing cavity on the surface of the scrubbing roller, and air bubbles and the like cannot be discharged in the releasing process. Simultaneously be equipped with the pressure release chamber between pressure release chamber and the pressure chamber, be equipped with the pressure release hole between this pressure release chamber and the pressure release chamber, carry out pressure release once earlier when carrying out the pressure release to avoid getting into pressure release chamber and producing the noise.

Drawings

In order to illustrate more clearly the embodiments of the invention or the solutions of the prior art, reference will now be made briefly to the attached drawings that are needed in the description of the embodiments or the prior art, it being understood that the drawings in the description illustrate only some embodiments of the invention and are therefore not to be considered limiting of its scope, and that, to a person skilled in the art, other related drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic structural diagram of an embodiment of a pressure relief mechanism of a scrubbing vehicle.

Fig. 2 isbase:Sub>A schematic view ofbase:Sub>A scrub roller havingbase:Sub>A sectional structure taken alongbase:Sub>A-base:Sub>A in fig. 1.

Fig. 3 is an enlarged schematic view of a part C of fig. 2.

Fig. 4 is a schematic view of the structure of fig. 2 without the scrubbing roller.

Fig. 5 is an exploded view of the structure of fig. 2.

Fig. 6 is an explosion diagram of the water diversion structure embodiment.

FIG. 7 is a schematic structural diagram of an embodiment of a pressure relief mechanism of a scrubbing vehicle without a scrubbing roller.

FIG. 8 is a front view of the embodiment of the washing and scrubbing vehicle device.

Fig. 9 is a schematic view of a pressure relief air path of the scrubbing vehicle device without the scrubbing roller.

Fig. 10 is a complete schematic view of the water diversion structure in the axial direction of the scrubbing roller.

Reference numerals:

a scrubbing roller 1, a water absorption layer 11, a motor 12, a cleaning mechanism 2, a shell 3, a sealed liquid exchange area A, a pressure relief chamber B, a first gap B1, a second gap B2, an air outlet 27, a shell upper cover 34,

A first fixing member 22,

Gap 221, relief hole 222, arc 223,

A second fixing member 23,

A third interference part 231, a third interference part outer side 2311, a third interference part inner side 2312, a collapse section 232, a water trap protrusion 234, a fine particle garbage collecting space G,

An interference portion assembly 20,

The first interference part 200, the fixing part 201, the sealing part 202, the rib plate 203, the housing upper cover clamping groove 205, the mounting part 207, the pressure relief cavity 220,

A water diversion structure 21,

An extension part 210, a water guide part 211, a second interference part 2111, a guide bar 212, a slope 2121, a protrusion 2122, a water storage part 214, a straight part 216,

The purpose of the present invention is to provide a method for realizing, characterizing and advantageously combining the embodiments and further describing the same with reference to the accompanying drawings.

Detailed Description

The following claims are presented in conjunction with the detailed description of the invention and the accompanying drawings, it being understood that the embodiments described are only some embodiments of the invention and not all embodiments. Based on the embodiments of the present invention, those skilled in the art can find out all other embodiments without creative efforts, and all the embodiments also belong to the protection scope of the present invention.

It should be understood that in the embodiments of the present invention, all directional terms, such as "upper", "lower", "left", "right", "front", "back", etc., are used herein based on the orientation and position shown in the drawings or the orientation and position of the product, and are not intended to limit the present invention, but to simplify the description of the present invention. For the purpose of explaining only the relative positional relationship between the respective components, the movement, and the like, as shown in the drawings, when the specific posture is changed, the directional indication may be changed accordingly.

Furthermore, the use of ordinal numbers such as "first", "second", etc., in the present application is for distinguishing purposes only and is not to be construed as indicating or implying any relative importance or implicit indication of the number of technical features indicated. The features defining "first" and "second" may be explicit or implicit in relation to at least one of the technical features. In the description of the present invention, "a plurality" means at least two, i.e., two or more, unless expressly defined otherwise; the meaning of "at least one" is one or both.

In the present invention, unless explicitly specified or limited otherwise, the terms "mounting," "setting," "connecting," "fixing," "screwing" and the like are to be understood in a broad sense, and for example, the positional relationship between the components may be relatively fixed, or the components may be physically fixed and connected, or may be detachably connected, or may be integrated into a single structure; the connection can be mechanical connection or electrical signal connection; either directly or indirectly through intervening media or components; the two elements may be connected with each other or may be in an interaction relationship with each other, and unless otherwise explicitly limited by the specification, the specific meaning of the terms in the present invention can be understood by those skilled in the art according to the specific situation, except that the corresponding function or effect cannot be achieved otherwise.

The present invention relates to a control technique or unit that is conventional for those skilled in the art, such as a controller and a control circuit, and the control circuit of the controller can be implemented by those skilled in the art using existing techniques, such as simple programming. Software or programs related to the implementation of the control result in cooperation with hardware, such as software or program control procedures related to the implementation of the control result, which are not described in detail in the specification, belong to the technical field of the prior art or the routine of a person with ordinary skill in the art. The power also adopts belong to the prior art in this field, and the utility model discloses main utility model technical point lies in improving mechanical device, so the utility model discloses no longer explain concrete circuit control relation and circuit connection in detail.

The present disclosure provides many different embodiments or examples for implementing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and arrangements of the specific examples are described in the present invention. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the application of other processes and/or the use of other materials.

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

As shown in fig. 1-10, the present invention provides an embodiment of a pressure relief mechanism for a scrubber vehicle.

As shown in fig. 1 and 2, the vehicle cleaning pressure relief mechanism comprises a cleaning head and a handle (not shown in the figures) connected with the cleaning head, wherein the cleaning head comprises a housing 3, a cleaning roller 1 and a cleaning mechanism 2, the cleaning roller 1 is mounted on the housing 3, and continuous cleaning is realized by continuously rolling on the surface of a vehicle; the cleaning mechanism 2 continuously cleans the partial surface of the scrubbing roller after the surface of the vehicle is scrubbed and maintains the surface humidity of the scrubbing roller, and the cleaning mechanism 2 comprises a sealed liquid exchange area A and an interference component 20 which extrudes the liquid on the scrubbing roller 1 to the sealed liquid exchange area A.

Specifically, as shown in fig. 1 and fig. 2, a water-absorbing layer 11 capable of absorbing water is provided on the surface of the scrub roller 1, and in this embodiment, a sponge is used as the water-absorbing layer. The scrubbing roller 1 is directly driven by a motor 12, or can be driven by a motor and the like through a transmission mechanism (not shown in the figure), and continuous scrubbing is realized by rolling the scrubbing roller on the surface of a vehicle.

The cleaning mechanism 2 may be an integral structure, and although the following embodiments are implemented by matching a plurality of parts of the cleaning mechanism 2, the serial numbers and names of the components and parts in the following description are consistent with those of the present embodiment, or those skilled in the art may make simple modifications and extensions based on the following text description and drawings, which are within the scope of protection of the technical solution disclosed in the present embodiment.

As a further improved embodiment, the cleaning mechanism 2 may also be implemented by matching a plurality of parts, and when a plurality of separate parts are matched, the difficulty in processing and manufacturing the cleaning mechanism may be reduced.

The present embodiment will be described by taking the cleaning mechanism 2 as a separate component structure as an example.

As shown in fig. 2, 4 and 5, the interference component assembly 20 includes a first interference portion 200 forming a pressing with the surface of the scrubbing roller 1, the first interference structure 200 is provided with a fixing portion 201 and a sealing portion 202 along two circumferential sides of the surface of the scrubbing roller 1, the sealing portion 202 extends outwards to form a mounting portion 207 having a flat mounting surface for fixing the water diversion structure 21, the sealing portion 202 and the water diversion structure 21 cooperate with each other to form a sealed liquid exchange area a on the surface of the scrubbing roller 1, and the fixing portion 201 can be fixed with the housing 3. The water diversion structure 21 can be connected with the sealing part 202 to be in surface contact with the scrubbing roller 1 to form water-tight contact.

As shown in fig. 3, 4 and 5, the water diversion structure 21 includes a water diversion part 211 contacting with the surface of the scrubbing roller 1, a water storage part 214 connected with the water diversion part 211, a guide strip 212 for generating interference on the two end surfaces of the scrubbing roller 1, and an extension part 210 having a first gap B1 between the water diversion part 211 and the surface of the scrubbing roller 1, wherein a second interference part 2111 forming water-tight contact with the surface of the scrubbing roller 1 is arranged at the circumferential end of the water diversion part 211, and guide strips 212 for generating interference on the two end surfaces of the scrubbing roller 1 are respectively arranged at the two ends of the water diversion part 211 in the length direction, that is, the guide strips 212 partially contact with the surface of the scrubbing roller 1. The inner side of the guide strip 212 is provided with a slope 2121, the slope 2121 has an arc structure, and the arc structure of the slope 2121 is designed to keep the contact pressure of each part of the slope when the slope contacts with the surface of the scrub roller 1 substantially the same. The guide strip 212 is provided with a protrusion 2122 extending towards the sealing liquid exchange area a, and the protrusion 2122 surrounds the first interference part 200, the second interference part 2111, the water storage part 214 and the sealing part 202 at two sides of the sealing liquid exchange area a to form a seal on the surface of the scrubbing roller 1 to seal the sealing liquid exchange area a of the scrubbing roller 1. The water storage part 214, the water diversion part 211, the guide strip 212 and the sealing part 202 are matched with the surface of the scrubbing roller 1 to form a sealed liquid exchange area A. The extension part 210 and the water diversion part 211 are respectively located at two sides of the water storage part 214. The water storage part 214 is matched with the sealing part 202 and is fixedly connected with the sealing part in a waterproof mode.

As a further improved embodiment, the second interference portion 2111 may adopt a strip-like structure, and the contact surface formed by the second interference portion 2111 and the surface of the scrub roller 1 is as small as possible, so that the second interference portion 2111 is ensured not to seep out during the water exchange process, the rotation resistance of the scrub roller 1 during operation can be reduced, and in addition, the gap length in the circumferential direction of the scrub roller 1 can be effectively enlarged, thereby increasing the pressure relief area.

As shown in fig. 2, 3 and 4, the cleaning mechanism 2 further includes a first fixing member 22 and a second fixing member 23 which are matched with the sealing portion 202 to fix the water guide structure 21, the first fixing member 22 needs to be fixed by the second fixing member 23, a side surface of the first fixing member 22 close to the scrubbing roller 1 is provided with an arc-shaped structure, a second gap B2 which is communicated with the first gap B1 is formed between the arc-shaped structure and the surface of the scrubbing roller 1, the first gap B1 and the second gap B2 form a pressure relief chamber B, and as the first gap B1 and the second gap B2 form a large-area projection on the surface of the scrubbing roller 1, when pressure relief is needed, the pressure relief air outlet 27 and the pressure relief chamber B are communicated in a manner of an electromagnetic valve (not shown in the drawings), and can be quickly absorbed by the scrubbing roller 1, so as to avoid phenomena of bubbles and the like when pressure is released to the scrubbing roller 1.

As a further improved embodiment, as shown in fig. 3, the pressure relief air outlet 27 is directly communicated with the pressure relief chamber B, so that the internal structure of the cleaning mechanism 2 can be further simplified, and the processing and manufacturing difficulty of the cleaning mechanism can be reduced.

The pressure relief cavity B is a semi-sealed structure, and the pressure relief cavity further includes a third interference portion 231, which is parallel to the axial direction of the scrubbing roller 1 and is semi-sealed in the circumferential direction of the scrubbing roller, and is arranged on the surface of the scrubbing roller 1 near the surface of the vehicle. The third interference portion may be a separately detachable part or may be a part of one of the parts. The pressure relief cavity B is called a "semi-sealed structure", and is mainly because the third interference part only forms a semi-seal with the circumferential direction of the scrubbing roller in the length direction of the third interference part, a gap is left between the two ends of the third interference part in the length direction and the scrubbing roller 1, and specifically, the pressure relief channel is left in the pressure relief cavity B close to the two ends of the scrubbing roller 1 in the following paragraphs of the pressure relief channel and the detailed descriptions of fig. 3, fig. 7 and fig. 9, so the pressure relief cavity B is a semi-sealed structure.

As a further improved embodiment, as shown in fig. 2, 3, 4 and 5, the pressure relief mechanism of the scrub vehicle further includes a cleaning mechanism 2, the cleaning mechanism further includes a third interference portion 231 of the second fixing member 23 formed on the surface of the scrub roller 1 for interference, and the third interference portion 231 may be a strip structure, such as an interference strip. The third interference portion 231 may be provided in the first fixing member 22, or may be provided in another member. If the first fixing member 22 needs to be fixed by the second fixing member 23, the third interference portion 231 may be disposed on the second fixing member 23, the third interference portion 231 is disposed near the surface of the vehicle and is parallel to the axis of the scrubbing roller 1, and the third interference portion 231, the water guide portion 211, the second interference portion 2111 and the guide strip 212 form a closed pressure relief chamber B, so as to avoid the occurrence of bubbles on the surface of the scrubbing roller 1 when the releasing pressure is relatively high.

As shown in fig. 5, the third interference portion 231 includes a third interference portion outer side 2311 which is at an outer side as viewed in the direction of the scrub roller 1 rotating in the clockwise direction and a third interference portion concave side 2312 which is at an inner side as viewed in the direction of the scrub roller 1 rotating in the clockwise direction, and since the third interference portion 231 is located at a closest distance from the surface of the vehicle, when the particulate debris is present, it can be separated from the surface of the scrub roller 1 by the action of the third interference portion outer side 2311 and form a gather at the third interference portion concave side 2312. When the third interference portion 231 is located on the second fixing member 23, it can be easily removed, thereby facilitating cleaning.

As a further improved embodiment, the third interference portion 231 may be provided on other components as needed, and may be easily removed, thereby facilitating cleaning.

As a further improved embodiment, as shown in fig. 7 and 9, the second fixing member 23 continues to extend upwards in the length direction and in the radial direction of the outer surface of the scrubbing roller 1 at both ends of the third interference portion 231 to form a water inlet protrusion 234 in an a shape, and the second fixing member 23 continues to extend towards both ends at the water inlet protrusion 234 while its interference with the outer surface of the scrubbing roller 1 is gradually reduced to zero until a gap is left between the two to form a collapsed section 232. The second fixing member 23 is slightly interference-fitted with the outer surface of the scrub roller 1 at the third interference portion 231 and the two water pockets 234, and forms a collecting space G at a lower portion of the second gap B2. Further, the collecting space comprises a fine particle waste collecting space. On the one hand, the third interference portion outer side 2311 outside the third interference portion 231 is located closest to the vehicle surface, and when particulate waste exists, the particulate waste can be separated from the surface of the scrubbing roller 1 by the action of the third interference portion outer side 2311, and after the particulate waste is adhered beyond the highest point of the third interference portion 231 by the adhesion of the water absorbing layer 11 on the surface of the wetted scrubbing roller 1, the particulate waste is deposited on the concave side 2312 of the third interference portion by the action of the suction layer 11 again by the sewage squeezed out by the first interference portion 200 under the impact of the bleed air released from the air outlet 27. When the third interference portion 231 is located on the second fixing member 23, it can be easily detached, thereby facilitating the cleaning of the particulate garbage deposited in the fine particulate garbage collecting space G. On the other hand, when the fine particle garbage collecting space G is full of particulate garbage or sewage, the collapse section 232 of the second fixing member 23 and the water absorbing layer 11 on the surface of the scrubbing roller 1 leave a gap to form a first air exhaust gap D1 and a second air exhaust gap D2, and the discharged air is discharged out of the vehicle scrubbing device from the first air exhaust gap D1 and the second air exhaust gap D2 after encountering the blockage of the fine particle garbage collecting space G, so that the pressure accumulated in the vehicle scrubbing device is discharged.

As shown in fig. 3, a pressure relief cavity 220 is disposed between the pressure relief cavity B and a pressure cavity (not shown in the drawings, which may be one of the inner cavities of the container for collecting, filtering and outputting the return water of the scrubber device), and a pressure relief hole 222 is disposed between the pressure relief cavity 220 and the pressure relief cavity B. The surface area of the scrubbing roller 1 forming part of the pressure relief cavity B is larger than that of the scrubbing roller 1 forming part of the sealed liquid exchange area A, the generated air is limited due to the small surface area of the extrusion scrubbing roller 1, and the surface area of the pressure relief cavity B is larger, so that the pressure relief can be easily carried out.

As shown in fig. 2 and 5, the sealing portion 202 forms a V-shaped groove (not shown) between the side opposite to the first interference portion 200 and the fixing portion 201. In order to improve the strength and reduce the mass, a rib 203 is provided between the sealing portion 202 and the fixing portion 201 on the side away from the first interference portion 200.

As shown in fig. 2 to 5, the cleaning mechanism 2 further includes a water diversion structure 21 connected with the sealing part 202 and contacting with the surface of the scrubbing roller 1 to form watertight contact. The water diversion structure 21 comprises a water diversion part 211 contacting with the surface of the scrubbing roller 1, a water storage part 214 connected with the water diversion part 211, and an extension part 210 arranged with a pressure relief chamber B between the surface of the scrubbing roller 1, wherein the pressure relief chamber B is communicated with the pressure relief air outlet 27.

As shown in fig. 2 and 3, the water diversion part 211 extends into the sealed liquid exchange area a, the water diversion part 211 close to the sealed liquid exchange area a is in contact with the surface 1 of the scrubbing roller, and a gap B1 is arranged between the water diversion part 211 far away from the sealed liquid exchange area a and the surface of the scrubbing roller 1. The cross section of the sealing liquid exchange area along the length vertical direction is arc-shaped, and the arc shape comprises a C shape.

As shown in fig. 6 and 7, a plurality of through holes (not shown) are formed in the straight portion 216 of the water guide structure 21, a plurality of nut posts (not shown) are arranged on the top of the first fixing member 22, the nut posts are matched with the through holes, and then fastening screws are driven into the nut posts on the top of the first fixing member 22 from the mounting portion 207 of the interference component 20 downwards through the top of the straight portion 216 of the water guide structure 21, so that the mounting of the large component part of the cleaning mechanism 2 can be realized. Further, the second fixing member 23 can be detachably connected to the first fixing member 22 by interference fit through the lower opening of the first fixing member 22. In order to facilitate the disassembly and assembly, a gap 221 is reserved between the second fixing piece 23 and the first fixing piece 22, so that compressed air in the interference fit plugging process finally has a certain space, and the disassembly and assembly convenience is improved.

As shown in fig. 6 and 7, a pressure relief hole 222 communicated with the air outlet 27 is formed in the middle of the cleaning mechanism 2 assembled by the water diversion structure 21, the first fixing member 22 and the second fixing member 23, a main body part of the pressure relief hole 222 communicated with the air outlet 27 is arranged in the middle of the first fixing member 22, one side surface of the first fixing member 22 facing the surface of the scrubbing roller 1 is an arc surface 223 with an equivalent radian, and the arc surface 223, the pressure relief hole 222 and the surface of the scrubbing roller 1 jointly enclose a second gap B2. The upper half part of the pressure relief hole 222 is arranged in the middle of the water diversion structure 21, the lower half part of the pressure relief hole 222 is arranged in the middle of the second fixing member 23, and the two upper and lower half part guide parts enclose a complete guide part of the pressure relief hole 222. The guide part of the pressure relief hole 222 can increase the air outlet area of the pressure relief hole 222, further reduce the air outlet flow rate, and simultaneously facilitate the discharged air to be uniformly dispersed on the surface of the scrubbing roller 1, further reduce the noise generated by the scrubbing vehicle device in the pressure relief and air exhaust processes. As shown in fig. 8, together with fig. 2, in order to keep the sealed liquid exchange area a continuously exchanged during operation, the sealed liquid exchange area a may be respectively provided with a clean water input port A1 communicated with the outlet 41 of the water outlet pipe and a sewage output port A2 communicated with the return water inlet 51, wherein the clean water input port may be communicated with a cleaning liquid container (not shown in the drawings) through a water pump (not shown in the drawings), the sewage output port may also be communicated with a sewage container (not shown in the drawings) through a water pump, and a conversion device (not shown in the drawings) may be provided between the sewage container and the cleaning liquid container, for example, sewage may be converted into cleaning liquid, so as to protect a vehicle from being continuously scrubbed for a longer time. The cleaning liquid can comprise clear water or a mixed liquid of the clear water and the cleaning liquid, and can also be the cleaning liquid only. And the cleaning liquid inlet and the sewage outlet are respectively positioned at two ends of the sealed liquid exchange area.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: it is to be understood that modifications may be made to the above-described arrangements in the embodiments or equivalents may be substituted for some of the features of the embodiments without departing from the spirit or scope of the present invention.

Claims (11)

1. A pressure relief mechanism of a scrubbing vehicle is characterized by comprising a pressure relief cavity communicated with a pressure cavity, which is arranged at the position corresponding to the surface of a scrubbing roller, wherein the pressure relief cavity comprises a water diversion structure in watertight contact with the surface of the scrubbing roller, the water diversion structure comprises a water diversion part in watertight contact with the surface of the scrubbing roller, the water diversion part is in contact with the surface of the scrubbing roller, and a gap is arranged between the position far away from the water diversion part in contact with the surface of the scrubbing roller and the surface of the scrubbing roller.

2. The pressure relief mechanism of claim 1, further comprising a cleaning mechanism, wherein the cleaning mechanism comprises a first interference portion that forms a compression with the surface of the scrubbing roller, the first interference portion is provided with a fixing portion and a sealing portion along two circumferential sides of the surface of the scrubbing roller, and the sealing portion forms a sealing liquid exchange area on the surface of the scrubbing roller.

3. The pressure relief mechanism of claim 2, wherein the cleaning mechanism further comprises a water diversion structure connected to the sealing portion and contacting the surface of the scrubbing roller to form a watertight contact.

4. The pressure relief mechanism of claim 3, wherein the water guide structure comprises a water guide part contacting the surface of the scrubbing roller and a water storage part connected to the contact part.

5. The scrubber vehicle pressure relief mechanism as in claim 4, wherein the water diverting section extends into the sealed liquid exchange area, a water diverting section adjacent the sealed liquid exchange area is in contact with the surface of the scrubber roller, and a gap is provided between a water diverting section remote from the sealed liquid exchange area and the surface of the scrubber roller.

6. The pressure relief mechanism of a scrubber vehicle as recited in claim 1, wherein the pressure relief cavity is a sealed structure.

7. The scrubber vehicle pressure relief mechanism as in claim 6, wherein the pressure relief cavity further comprises an interference strip disposed on the surface of the scrubber roller adjacent to the surface of the vehicle and axially parallel to the axis of the scrubber roller and forming a semi-closed circumferential surface of the scrubber roller.

8. The scrubber vehicle pressure relief mechanism as in claim 7, wherein the interference bar has water-holding protrusions at both ends for depositing the particulate debris.

9. The scrubber vehicle pressure relief mechanism as in claim 8, wherein the interference bar has two ends provided with collapse sections for releasing gas pressure, and the anti-leakage protrusion is located at the junction of the collapse sections and the interference sections, faces away from the inside of the end of the scrubber roller and extends away from the surface of the vehicle.

10. The pressure relief mechanism of a scrubber vehicle as claimed in claim 1, wherein a pressure relief chamber is disposed between the pressure relief chamber and the pressure chamber, and a pressure relief hole is disposed between the pressure relief chamber and the pressure relief chamber.

11. The scrubber vehicle pressure relief mechanism of claim 5, wherein a surface area of the scrubber roller forming a portion of the pressure relief cavity is greater than a surface area of the scrubber roller forming a portion of the sealed liquid exchange area.

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