Four-brush cleaning mechanism and four-brush cleaning maintenance vehicle

Abstract

The utility model provides a four-brush cleaning mechanism and a four-brush cleaning maintenance vehicle. The four-brush cleaning mechanism comprises a rear support; the rear brush and the rear brush motor are connected in a matched mode and installed at the front end of the rear support, the pneumatic push rod is connected with the middle area of the front end of the rear support through an oil wire, and an installation piece is arranged on the pneumatic push rod so that the pneumatic push rod can be installed on a vehicle frame. The front brushes and the front brush motor are connected in a matched mode, the two front brushes are connected through a rotating connecting rod, the rotating connecting rod is connected with the middle area of the front end of the rear support through a first hinge structure, and the two ends of the rotating connecting rod are sleeved with shaft sleeves so that the rotating connecting rod can be installed on a frame. According to the technical scheme, the four sweeping brushes can be simultaneously pushed to synchronously ascend and descend through the pneumatic push rod, the garbage hopper lap joint plate also ascends and descends along with the sweeping brushes, operation is more flexible and convenient, and swept garbage particles and the like can be swept into the garbage hopper along the garbage hopper lap joint plate by the rear brush. Moreover, the position of the rear brush can be adjusted, so that the cleaning effect can be guaranteed, and the service time can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of sanitation equipment, in particular to a four-brush cleaning mechanism and a four-brush cleaning and maintenance vehicle. Background Art

[0002] In the related art, the small sweeper has a low chassis and a small water tank, and uses two sweeping brushes to sweep garbage. The sweeping brushes are generally lifted vertically by a lifting structure, and the lateral position of the sweeping brushes is fixed and cannot be adjusted, which has the following technical defects:

[0003] (1) The operation is not flexible and the use is not convenient. The small particles of garbage that are cleaned are difficult to collect into the garbage hopper, and the garbage hopper is not convenient to dump.

[0004] (2) The horizontal position of the sweeping brush is fixed and cannot be adjusted. After a period of use, the cleaning effect will deteriorate. The sweeping brush needs to be replaced frequently, which is costly. In addition, the cleaning interval is fixed and the applicability is poor. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art or related technology.

[0006] Therefore, the purpose of the utility model is to provide a four-brush cleaning mechanism and a four-brush cleaning maintenance vehicle, which can simultaneously push the four sweeping brushes to rise and fall synchronously through the pneumatic push rod, and the garbage bucket overlap plate also rises and falls together, making the operation more flexible and convenient, and the small garbage particles can also be swept into the garbage bucket by the rear brush along the garbage bucket overlap plate. Moreover, the position of the rear brush can be adjusted, not only can it clean roads of different widths, but also after the rear brush has been used for a period of time, it can be adjusted inwards, which can not only ensure the cleaning effect, but also extend the use time.

[0007] In order to achieve the above-mentioned purpose, the technical solution of the utility model provides a four-brush cleaning mechanism, including: a rear bracket; a rear brush and a rear brush motor arranged in a cooperative connection, installed at the front end of the rear bracket, a pneumatic push rod, connected to the front end middle area of ​​the rear bracket through an oil thread, and a mounting piece is arranged on the pneumatic push rod for installation on a vehicle frame; a front brush and a front brush motor arranged in a cooperative connection, the two front brushes are connected by a rotating connecting rod, the rotating connecting rod is connected to the front end middle area of ​​the rear bracket through a first hinge structure, and shaft sleeves are arranged on both ends of the rotating connecting rod for installation on the vehicle frame.

[0008] Preferably, the four-brush cleaning mechanism also includes: a garbage bucket lap plate, which is arranged at the bottom of the rear brush and connected to the rear bracket through a second hinge structure; the garbage bucket lap plate is also connected to a third hinge structure hinged to the second hinge structure, and mounting parts are arranged on the third hinge structure and the rear bracket for installation on the vehicle frame.

[0009] A black soft material plate is set at the front end of the garbage bin lap plate, which makes it easier to clean the garbage into the garbage bin.

[0010] Preferably, the four-brush cleaning mechanism further comprises: a buffer spring, one end of which is connected to the rear bracket, and the other end of which is connected to the second hinge structure.

[0011] Preferably, the four-brush cleaning mechanism also includes: an adjusting screw rod, on which a screw nut is sleeved, and the screw nut is installed to the front middle area of ​​the rear bracket; an adjusting nut, which is sleeved on the adjusting screw rod, and the rear brush motor is connected to the adjusting nut.

[0012] It is worth mentioning that positive and negative threads are designed on the adjusting screw rod so that the two rear brushes can be adjusted to the middle or to both sides synchronously.

[0013] Preferably, the four-brush cleaning mechanism also includes: an adjustment limit plate installed on both sides of the front end of the rear bracket; the rear brush motor is fixedly connected to the first adjustment plate, the adjustment nut is fixedly connected to the second adjustment plate, the first adjustment plate is located on the front side of the adjustment limit plate, the second adjustment plate is located on the rear side of the adjustment limit plate, and the fixing part passes through the long slot hole of the adjustment limit plate to fix the first adjustment plate and the second adjustment plate.

[0014] Preferably, the first hinged structure includes: an arc-shaped connecting rod with a sleeve at one end, the sleeve of the arc-shaped connecting rod is sleeved on the rotating connecting rod; an L-shaped connecting rod with one end hinged to the arc-shaped connecting rod, and the other end of the L-shaped connecting rod is hinged to the connecting piece on the rear bracket.

[0015] The technical solution of the utility model also proposes a four-brush cleaning and maintenance vehicle, comprising: a frame; a four-brush cleaning mechanism of any one of the above technical solutions, installed on the bottom of the frame; a guide rail is arranged on the inner side of the rear of the frame; a detachable garbage bucket is installed on the guide rail and is aligned with the garbage bucket overlap plate.

[0016] Preferably, an air outlet structure is provided at the rear of the frame, and the air outlet structure includes a plurality of air outlet holes, which are provided at the rear of the frame and are connected to the detachable garbage bin; and an air outlet protective cover with a downward opening is provided at the position of the air outlet holes.

[0017] Preferably, a handrail is installed on the detachable garbage bucket, and a roller is installed at the bottom of the detachable garbage bucket.

[0018] Preferably, the four-brush cleaning and maintenance vehicle further comprises: a water tank mounted on the top of the frame; a water pump connected to the water tank and arranged under the seat; and a water spraying structure connected to the water pump and arranged at the front brush and rear brush positions.

[0019] The four-brush cleaning mechanism and the four-brush cleaning maintenance vehicle proposed by the utility model have the following beneficial technical effects:

[0020] (1) The two front brushes and the two rear brushes in the four-brush cleaning mechanism proposed by the utility model can be synchronously driven to rise and fall by the same pneumatic push rod using oil wire, hinge structure, etc., so the operation is more flexible and convenient.

[0021] (2) The four-brush cleaning mechanism proposed in the utility model is also designed with a garbage bucket overlap plate connected to the rear bracket through a hinged structure, which can be driven by the pneumatic push rod to move synchronously with the front and rear brushes. When the garbage bucket overlap plate is lowered, it is in an inclined state, which is convenient for cleaning garbage into the garbage bucket. The operation is convenient, and the cleaned small garbage particles can also be swept into the garbage bucket by the rear brush along the garbage bucket overlap plate. A buffer spring is designed between the rear bracket and the garbage bucket overlap plate, which can play a buffering role, so that the garbage bucket overlap plate can be lowered smoothly.

[0022] (3) The four-brush cleaning mechanism proposed in the utility model is provided with an adjustment screw, a screw nut, an adjustment nut, etc., which can adjust the lateral position of the rear brush motor and the rear brush, so that the two rear brushes can be adjusted inwards synchronously and the latter can be adjusted to the sides. Not only can the cleaning of roads of different widths be performed, but also the rear brushes can be adjusted inwards after being used for a period of time, which can not only ensure the cleaning effect but also extend the use time. The design of the adjustment limit plate, the adjustment plate, etc. limits and supports the adjustment of the two rear brushes and the rear brush motor, ensuring the adjustment effect.

[0023] (4) The utility model proposes a four-brush cleaning and maintenance vehicle, which can realize the synchronous lifting and lowering of the four brushes and the garbage bucket overlap plate, and the garbage bucket is installed on the frame through a guide rail and is detachable, which is convenient for dumping garbage. The garbage bucket and the garbage bucket overlap plate are relatively matched. At the same time, an air outlet structure is designed, and garbage is not easy to leak out or be carried out.

[0024] (5) The four-brush cleaning and maintenance vehicle proposed in the utility model has a reasonable structural design and occupies a small space.

[0025] Additional aspects and advantages of the present invention will be given in the following description, and some will become apparent from the following description, or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0027] Figure 1A schematic structural diagram of a four-brush cleaning mechanism according to an embodiment of the utility model is shown;

[0028] Figure 2 Shows Figure 1 Schematic diagram of the main structure of the middle four-brush cleaning mechanism;

[0029] Figure 3 Shows Figure 1 The schematic diagram of the left side structure of the middle four-brush cleaning mechanism;

[0030] Figure 4 Shows Figure 1 Schematic diagram of the right side structure of the middle four-brush cleaning mechanism;

[0031] Figure 5 A schematic structural diagram of a four-brush cleaning and maintenance vehicle according to an embodiment of the utility model is shown;

[0032] Figure 6 A schematic structural diagram of a four-brush cleaning and maintenance vehicle according to an embodiment of the utility model is shown;

[0033] Figure 7 A partial structural schematic diagram of a four-brush cleaning and maintenance vehicle according to an embodiment of the utility model is shown;

[0034] Figure 8 A partial structural schematic diagram of a four-brush cleaning and maintenance vehicle according to an embodiment of the utility model is shown.

[0035] in, Figures 1 to 8 The corresponding relationship between the reference numerals and the components is as follows:

[0036] 102 rear bracket, 104 rear brush, 106 rear brush motor, 108 pneumatic push rod, 110 oil wire, 112 mounting part, 114 front brush, 116 front brush motor, 118 rotating connecting rod, 120 first hinge structure, 1202 arc-shaped connecting rod, 1204 L-shaped connecting rod, 122 bushing, 124 garbage bin lap plate, 126 second hinge structure, 128 third hinge structure, 130 buffer spring, 132 adjusting screw rod, 134 screw rod nut, 136 adjusting nut, 138 adjusting limit plate, 140 first adjusting plate, 142 second adjusting plate, 144 frame, 146 guide rail, 148 detachable garbage bin, 1482 handrail, 1484 roller, 150 air outlet structure, 1502 air outlet hole, 1504 air outlet protective cover, 152 water tank, 154 water pump. DETAILED DESCRIPTION

[0037] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0038] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0039] Combine the following Figures 1 to 8 A four-brush cleaning mechanism and a four-brush cleaning and maintenance vehicle according to an embodiment of the utility model are specifically described.

[0040] like Figures 1 to 4 As shown, a four-brush cleaning mechanism according to an embodiment of the utility model includes: a rear bracket 102, a rear brush 104 and a rear brush motor 106, a pneumatic push rod 108, a front brush 114 and a front brush motor 116, a rotating connecting rod 118, a hinge structure, etc. Two groups of rear brushes 104 and rear brush motor 106 are respectively installed on both sides of the front end of the rear bracket 102, and the pneumatic push rod 108 is connected to the middle area of ​​the front end of the rear bracket 102 through an oil thread 110, so that the pneumatic push rod 108 can pull the oil thread 110 to lift and lower the rear bracket 102, thereby lifting and lowering the rear brush motor 106 and the rear brush 104. A mounting member 112 is provided on the pneumatic push rod 108, which can be fixedly mounted on the frame 144. Two groups of front brushes 114 and a front brush motor 116 are arranged in front of the rear brush 104. The two front brushes 114 are connected by a rotating connecting rod 118. The rotating connecting rod 118 is connected to the front middle area of ​​the rear bracket 102 through a first hinge structure 120. Both ends of the rotating connecting rod 118 are sleeved with shaft sleeves 122, and the shaft sleeves 122 are installed on the frame 144. In this way, when the pneumatic push rod 108 lifts and lowers the rear bracket 102, it can drive the first hinge structure 120 to move, thereby driving the rotating connecting rod 118 to rotate, and lifting and lowering the front brush 114 and the front brush motor 116. It is realized that the lifting and lowering of the front and rear four brushes are controlled by the same pneumatic push rod 108, and the operation is more flexible and convenient. The front brush 114 can sweep the garbage to the middle position, and the rear brush 104 can sweep the garbage into the garbage bin.

[0041] Furthermore, if Figure 2 and Figure 4As shown, the four-brush cleaning mechanism also includes: a garbage bucket lap plate 124, which is arranged at the bottom of the rear brush 104 and is connected to the rear bracket 102 through a second hinge structure 126. The garbage bucket lap plate 124 is also connected to a third hinge structure 128 hinged to the second hinge structure 126. The third hinge structure 128 and the rear bracket 102 are provided with a mounting member 112, which can be installed on the frame 144. In this way, the garbage bucket lap plate 124 can also be driven by the pneumatic push rod 108 and lifted and lowered together with the rear bracket 102. Figure 2 and Figure 4 The middle is the state of being lifted up. Figure 5 Therefore, the operation is more convenient and flexible, and the garbage bucket lap plate 124 is in an inclined state when being lowered, which is convenient for cleaning the garbage into the garbage bucket, and the operation is convenient, and the cleaned small garbage particles can also be swept into the garbage bucket by the rear brush 104 along the garbage bucket lap plate 124.

[0042] like Figure 5 As shown, a black soft material plate can also be set at the front end of the garbage bin overlap plate 124 to make it easier to clean the garbage into the garbage bin.

[0043] Furthermore, if Figure 1 and Figure 2 As shown, a buffer spring 130 is designed between the rear bracket 102 and the garbage bin lap plate 124. One end of the buffer spring 130 is connected to the rear bracket 102, and the other end is connected to the second hinge structure 126, which can play a buffering role so that the garbage bin lap plate 124 can be lowered smoothly.

[0044] Furthermore, if Figures 2 to 4 As shown, the four-brush cleaning mechanism also includes: an adjusting screw 132, a screw nut 134, an adjusting nut 136, etc. The screw nut 134 is sleeved on the adjusting screw 132, and the screw nut 134 is installed in the front middle area of ​​the rear bracket 102. The adjusting nut 136 is sleeved on the adjusting screw 132, and the rear brush motor 106 is connected to the adjusting nut 136. The two sides of the screw nut 134 on the adjusting screw 132 are designed with positive and negative threads, so that the two rear brushes 104 can be adjusted to the middle or to both sides synchronously.

[0045] Thus, the lateral position of the rear brush motor 106 and the rear brush 104 can be adjusted, so that the two rear brushes 104 are synchronously adjusted inwards and the latter are adjusted to the sides. Not only can roads of different widths be cleaned, but also the rear brush 104 can be adjusted inwards after being used for a period of time, which can not only ensure the cleaning effect but also extend the use time.

[0046] Furthermore, if Figure 3 and Figure 4As shown, adjustment limit plates 138 are installed on both sides of the front end of the rear bracket 102, the rear brush motor 106 is fixedly connected to the first adjustment plate 140, the adjustment nut 136 is fixedly connected to the second adjustment plate 142, the first adjustment plate 140 is located on the front side of the adjustment limit plate 138, and the second adjustment plate 142 is located on the rear side of the adjustment limit plate 138, and the fixing part passes through the long slot hole of the adjustment limit plate 138 to fix the first adjustment plate 140 and the second adjustment plate 142.

[0047] Therefore, the adjustment of the two rear brushes 104 and the rear brush motor 106 can be limited and supported, thereby ensuring the adjustment effect.

[0048] Specifically, the adjustment limit plate 138 is a rectangular plate having two upper and lower rounded rectangular through holes.

[0049] Furthermore, if Figure 1 and Figure 2 As shown, the first hinged structure 120 includes: an arc-shaped connecting rod 1202 with a sleeve at one end, the sleeve of the arc-shaped connecting rod 1202 is sleeved on the rotating connecting rod 118; an L-shaped connecting rod 1204 with one end hinged to the arc-shaped connecting rod 1202, and the other end of the L-shaped connecting rod 1204 is hinged to the connecting piece on the rear bracket 102.

[0050] Therefore, when the pneumatic push rod 108 lifts and lowers the rear bracket 102, it can drive the first hinge structure 120 to move, thereby driving the rotating link 118 to rotate, and lifting and lowering the front brush 114 and the front brush motor 116, so that the lifting and lowering of the front and rear four brushes can be controlled by the same pneumatic push rod 108, and the operation is more flexible and convenient. In addition, it is ensured that after the front brush 114 and the rear brush 104 are lowered, the front brush 114 can be in a better position and does not contact the ground after being lifted.

[0051] like Figures 5 to 8 As shown, a four-brush cleaning and maintenance vehicle according to an embodiment of the utility model includes: a frame 144; a four-brush cleaning mechanism of any one of the above embodiments, installed at the bottom of the frame 144, a guide rail 146 is set on the inner side of the rear of the frame 144, and a detachable garbage bucket 148 is installed on the guide rail 146, and the detachable garbage bucket 148 is relatively engaged with the garbage bucket lap plate 124.

[0052] Thus, the four brushes and the garbage bin lap plate 124 can be raised and lowered step by step. The garbage bin is installed on the frame 144 through the guide rail 146 and is detachable, which is convenient for dumping garbage. The garbage bin is relatively matched with the garbage bin lap plate 124. When the garbage bin lap plate 124 is lowered, it is in an inclined state, which is convenient for cleaning the garbage into the garbage bin. The operation is convenient, and the cleaned small particles of garbage can also be swept into the garbage bin by the rear brush 104 along the garbage bin lap plate 124.

[0053] Furthermore, if Figures 5 to 7 As shown, an air outlet structure 150 is provided at the rear of the frame 144 , and the air outlet structure 150 includes a plurality of air outlet holes 1502 , which are provided at the rear of the frame 144 and are connected to the detachable garbage bin 148 ; an air outlet protective cover 1504 with a downward opening is provided at the position of the air outlet holes 1502 .

[0054] Thereby, airflow can be generated, and after the garbage is brought into the detachable garbage bucket 148, it is not easy to leak out, and it is not easy to be taken out.

[0055] Furthermore, if Figures 5 to 8 As shown, a handrail 1482 is installed on the detachable garbage bucket 148, and a roller 1484 is installed at the bottom of the detachable garbage bucket 148. Thereby, it is more convenient to disassemble and install, and it is convenient to dump garbage.

[0056] Furthermore, if Figures 5 to 8 As shown, a water tank 152 is installed on the top of the frame 144, a water pump 154 ​​is arranged under the seat, the water pump 154 ​​is connected to the water tank 152, a water spraying structure is arranged at the position of the front brush 114 and the rear brush 104, and the water spraying structure is connected to the water pump 154, so as to facilitate water spraying during cleaning to prevent dust. Moreover, the structure is reasonably designed and occupies less space.

[0057] The working process of a four-brush cleaning mechanism and a four-brush cleaning maintenance vehicle proposed in the utility model is as follows:

[0058] When cleaning, the pneumatic push rod 108 is controlled to drive the oil wire 110, so that the rear bracket 102 is lowered, the rear brush 104 is lowered, and the hinged structure is driven to move, the front brush 114 is lowered, and the garbage bucket overlap plate 124; the front brush motor 116 controls the front brush 114 to rotate and sweep the garbage to the middle. During the forward movement of the four-brush cleaning and maintenance vehicle, the rear brush motor 106 controls the rear end to rotate and sweep the garbage along the garbage bucket overlap plate 124 into the detachable garbage bucket 148. After the garbage bucket 148 is full, it is removed, and the handrail 1482 is held and the detachable garbage bucket 148 is pushed by the roller 1484 to dump the garbage; after cleaning, the pneumatic push rod 108 is controlled to drive the oil wire 110, so that the rear bracket 102 rises, the rear brush 104 rises, and at the same time drives the articulated structure to move, lift the front brush 114 and the garbage bucket lap plate 124, so that when the four-brush cleaning and maintenance vehicle moves forward, the four brushes and the garbage bucket lap plate 124 do not touch the ground.

[0059] In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0060] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as "up", "down", "left", "right", "front" and "back" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the present invention.

[0061] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0062] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A four-brush cleaning mechanism, characterized in that: include: rear bracket; The rear brush and the rear brush motor are arranged in a cooperative connection and are installed at the front end of the rear bracket. The pneumatic push rod is connected to the front end middle area of ​​the rear bracket through an oil thread. The pneumatic push rod is provided with a mounting piece for mounting on the vehicle frame. The front brush and the front brush motor are arranged in a cooperative connection, and the two front brushes are connected through a rotating connecting rod. The rotating connecting rod is connected to the front end middle area of ​​the rear bracket through a first hinge structure. Both ends of the rotating connecting rod are provided with shaft sleeves for mounting on the vehicle frame.

2. The four-brush cleaning mechanism according to claim 1, characterized in that: Also includes: The garbage bin lap plate is arranged at the bottom of the rear brush and is connected to the rear bracket through a second hinge structure; the garbage bin lap plate is also connected to a third hinge structure hinged to the second hinge structure, and mounting parts are arranged on the third hinge structure and the rear bracket for mounting on the vehicle frame.

3. The four-brush cleaning mechanism according to claim 2, characterized in that: Also includes: A buffer spring, one end of which is connected to the rear bracket, and the other end of which is connected to the second hinge structure.

4. The four-brush cleaning mechanism according to claim 1, characterized in that: Also includes: An adjusting screw rod, on which a screw rod nut is sleeved, and the screw rod nut is installed in the middle area of ​​the front end of the rear bracket; An adjusting nut is sleeved on the adjusting screw rod, and the rear brush motor is connected to the adjusting nut.

5. The four-brush cleaning mechanism according to claim 4, characterized in that: Also includes: Adjust the limit plates and install them on both sides of the front end of the rear bracket; The rear brush motor is fixedly connected to the first adjustment plate, the adjustment nut is fixedly connected to the second adjustment plate, the first adjustment plate is located at the front side of the adjustment limit plate, the second adjustment plate is located at the rear side of the adjustment limit plate, and the fixing member passes through the long slot hole of the adjustment limit plate to fix the first adjustment plate and the second adjustment plate.

6. The four-brush cleaning mechanism according to any one of claims 1 to 5, characterized in that: The first hinged structure includes: an arc-shaped connecting rod with a sleeve at one end, the sleeve of the arc-shaped connecting rod is sleeved on the rotating connecting rod; an L-shaped connecting rod with one end hinged to the arc-shaped connecting rod, and the other end of the L-shaped connecting rod is hinged to the connecting piece on the rear bracket.

7. A four-brush cleaning and maintenance vehicle, characterized in that: include: A vehicle frame; a four-brush cleaning mechanism as claimed in any one of claims 1 to 6, mounted on the bottom of the vehicle frame; a guide rail is arranged on the inner side of the rear portion of the vehicle frame; a detachable garbage hopper is mounted on the guide rail and is aligned with the garbage hopper overlap plate.

8. The four-brush cleaning and maintenance vehicle according to claim 7, characterized in that: An air outlet structure is arranged at the rear of the frame, and the air outlet structure comprises a plurality of air outlet holes, which are arranged at the rear of the frame and are connected with the detachable garbage bucket; and an air outlet protective cover with a downward opening is arranged at the position of the air outlet holes.

9. The four-brush cleaning and maintenance vehicle according to claim 7, characterized in that: A handrail is installed on the detachable garbage bucket, and a roller is installed at the bottom of the detachable garbage bucket.

10. The four-brush cleaning and maintenance vehicle according to any one of claims 7 to 9, characterized in that: Also includes: A water tank is installed on the top of the frame; a water pump connected to the water tank is arranged under the seat; The water spray structure is connected to the water pump and is arranged at the front brush and the rear brush positions.

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