Trash can cleaning truck with trash can tipping mechanism

Abstract

This utility model provides a garbage bin tipping mechanism for a garbage bin cleaning vehicle, belonging to the field of mechanical technology. It solves the problem of complex structure caused by existing tipping mechanisms in cleaning vehicles. In this utility model, the cleaning vehicle includes a compartment with a cleaning chamber formed inside. An opening is provided on the front side of the compartment. The tipping mechanism includes a swing motor and a rotating shaft. The swing motor drives the rotating shaft to rotate. Two clamping arms are provided on one side of the rotating shaft. The ends of the clamping arms are hinged to the rotating shaft via shafts to allow the clamping arms to swing left and right. A clamping opening is formed between the ends of the two clamping arms. Rotating the rotating shaft allows the ends of the clamping arms to extend into or out of the cleaning chamber through the opening. Each shaft is fitted with a torsion spring, which causes the two clamping arms to tend to move towards each other. A drive mechanism is also included. When the rotating shaft rotates counterclockwise until the ends of the clamping arms extend out of the cleaning chamber, the drive mechanism pushes the two clamping arms to move in opposite directions. When the rotating shaft rotates clockwise, the drive mechanism releases the clamping arms. This utility model simplifies the structure of the cleaning vehicle.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical technology and relates to a garbage can cleaning vehicle, and more particularly to a garbage can tipping mechanism for a garbage can cleaning vehicle. Background Technology

[0002] The current garbage can cleaning method involves sanitation workers collecting and transporting garbage cans from streets and residential areas to garbage transfer stations, dumping the garbage, and then manually cleaning the inner and outer walls of the garbage cans.

[0003] To reduce manpower, garbage bin cleaning vehicles have been developed to achieve automatic garbage bin cleaning. These vehicles typically include a cleaning chamber and a tilting mechanism that flips the garbage bins into the cleaning chamber. The tilting mechanism, as disclosed in the Chinese Patent Database (application number: 202420881772.X), includes a clamping mechanism and a tilting mechanism. The tilting mechanism comprises a tilting motor, a tilting shaft, and a tilting arm. The tilting motor is fixedly installed at the bottom of the overall frame of the garbage bin cleaning machine and connected to the tilting shaft via a belt. Both ends of the tilting shaft are rotatably mounted on the overall frame. The rear end of the tilting arm is fixedly connected to the tilting shaft, and the front end extends beyond the overall frame. Fixedly connected to the clamping mechanism, the flipping motor drives the flipping shaft to rotate, flipping the flipping arm. The clamping mechanism clamps the trash can and flips along with the flipping arm. The clamping mechanism includes two identical drive mechanisms. Each drive mechanism includes a mounting base, a clamping cylinder, a fixed base, and a gripper. The mounting base is fixedly installed on the flipping shaft. The two drive mechanisms are installed opposite to each other and staggered. The clamping cylinder is fixedly installed on the mounting base. The output end of the clamping cylinder is connected to the end shaft of the gripper. The fixed base is fixedly installed on the mounting base and its end is connected to the gripper shaft. When the clamping cylinder works, it pushes the end of the gripper to move outward, and the front end of the gripper moves inward. Under the combined action of the grippers on both sides, the trash can is clamped.

[0004] The aforementioned flipping mechanism is only responsible for turning the trash can into the washing chamber. The positioning of the trash can during washing depends on the clamping of the inner washing bucket assembly set in the washing chamber, which increases the complexity of the entire washing vehicle and results in higher costs. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a garbage bin tipping mechanism for garbage bin cleaning vehicles that simplifies the structure of the cleaning vehicle.

[0006] The purpose of this utility model can be achieved through the following technical solution: a garbage bin tipping mechanism for a garbage bin cleaning vehicle. The cleaning vehicle includes a compartment with a cleaning chamber formed inside. An opening for the garbage bin to extend into or out of the cleaning chamber is provided on the front side of the compartment. The tipping mechanism includes a swing motor and a rotating shaft horizontally rotatably disposed within the cleaning chamber. The swing motor drives the rotating shaft to rotate. A strip-shaped clamping arm is provided on one side of the rotating shaft. There are two clamping arms arranged symmetrically on the left and right. The characteristic feature is that the ends of the clamping arms are hinged to the rotating shaft through shafts so that the clamping arms can swing left and right. A clamping opening for clamping the garbage bin is formed between the ends of the two clamping arms. Rotating the rotating shaft allows the ends of the clamping arms to extend into or out of the cleaning chamber through the opening. Each shaft is fitted with a torsion spring, and under the action of the torsion spring, the two clamping arms tend to move towards each other. A driving mechanism is provided at the opening or outside the cleaning chamber. When the rotating shaft rotates counterclockwise until the ends of the clamping arms extend out of the cleaning chamber, the driving mechanism pushes the two clamping arms to move in opposite directions against the torsion force of their respective torsion springs. When the rotating shaft rotates clockwise, the driving mechanism releases the action on the clamping arms.

[0007] The usage process is as follows: Initially, under the action of the drive mechanism, the two clamping arms move in opposite directions to widen the clamping opening. Then, the trash can is manually pushed into the clamping opening. Then, the drive mechanism releases the action on the clamping arms, causing the two clamping arms to move towards each other under the action of the torsion spring to clamp the trash can. As the rotating shaft rotates clockwise, the trash can enters the cleaning chamber for cleaning. After cleaning, the rotating shaft rotates counterclockwise to extend the trash can out of the cleaning chamber. Under the action of the drive mechanism, the two clamping arms release the trash can, and the trash can is manually removed, completing one cleaning process.

[0008] During the flipping and cleaning process, the trash can is always positioned between the two clamping arms. This eliminates the need for an additional clamping mechanism inside the cleaning chamber during actual use, greatly simplifying the structure of the cleaning vehicle and reducing costs.

[0009] In the aforementioned garbage bin tipping mechanism for a garbage bin cleaning vehicle, the drive mechanism consists of two drive seats fixed to the vehicle body and arranged side by side. Each drive seat has a wedge-shaped block, and the two wedge-shaped blocks are symmetrically arranged. Rolling elements with circumferential outer surfaces are rotatably mounted on the end sidewalls of both clamping arms. These rolling elements are positioned between the two clamping arms, and their outer surfaces can press against the inclined surfaces of the two wedge-shaped blocks via a rotating shaft. The rolling elements drive the two clamping arms to move closer or further apart by rolling on the inclined surfaces of the wedge-shaped blocks, thus achieving pure mechanical control of the garbage bin clamping or releasing. This not only results in a simple structure and stable operation but also further reduces costs.

[0010] In the aforementioned garbage bin tipping mechanism for garbage bin cleaning vehicles, a limiting component is also provided on the rotating shaft. The limiting component is located between the ends of the two clamping arms and is used to limit the depth of the garbage bin extending into the clamping opening, so that the garbage bin can be pushed into place in one go, making it convenient to use.

[0011] In the aforementioned garbage bin tipping mechanism for garbage bin cleaning vehicles, the limiting component includes a long strip-shaped limiting block. The limiting block is positioned facing the clamping opening and can press against the outer wall of the garbage bin to prevent the garbage bin from continuing to extend into the clamping opening. It has the advantages of simple structure and stable operation.

[0012] In the aforementioned garbage bin tipping mechanism for a garbage bin cleaning vehicle, the limiting components also include a locking element, a T-shaped baffle, and a base fixedly connected to the rotating shaft. The baffle consists of a head and a rod, with the baffle head being the aforementioned limiting block. The baffle rod is radially slidable on the base along the rotating shaft, and the distance between the limiting block and the clamping opening can be adjusted by sliding the baffle. The aforementioned locking element locks the baffle in the sliding position. This design facilitates adjustment of the limiting block position and makes debugging convenient.

[0013] In the aforementioned trash can tipping mechanism for a trash can cleaning vehicle, the base has a plate for contacting and supporting the baffle rod. The baffle rod has a through-groove extending along the sliding direction of the baffle. The plate has a corresponding threaded hole. The locking element is a first bolt that matches the groove. The shank of the first bolt passes through the groove and is screwed into the threaded hole, with the head of the first bolt pressing against the baffle rod. The first bolt serves both to lock the baffle and to cooperate with the groove to create a sliding fit between the baffle and the base, offering advantages such as simple structure and easy assembly.

[0014] In the aforementioned garbage bin tipping mechanism for a garbage bin cleaning vehicle, two hanging rings are formed on the sides of both clamping arms. The hanging rings extend axially along the thickness direction of the clamping arm, and the two hanging rings on the same clamping arm are arranged side-by-side along the thickness direction. A gap exists between the two hanging rings within the same clamping arm, and one end face of the rolling element is positioned opposite and close to this gap. The same screw passes through both hanging rings, with a nut screwed onto the screw shank. The screw head and nut are respectively pressed against the opposite sides of the two hanging rings. The screw and the two hanging rings work together to increase the moment of inertia of the clamping arm's cross-section at the rolling element position, thereby improving the torsional resistance at that position and ensuring stable operation of the clamping arm.

[0015] As another option, in the above-mentioned garbage bin tipping mechanism for garbage bin cleaning vehicles, the driving mechanism consists of two electromagnets installed on the vehicle body. When the electromagnets are energized, the actuating shafts of the two electromagnets press against the two clamping arms respectively, so as to push the two clamping arms to swing and expand the clamping opening against the torsion force of their respective torsion springs.

[0016] Compared with existing technologies, the garbage bin tipping mechanism of this garbage bin cleaning vehicle has the following advantages:

[0017] 1. During the flipping and cleaning process, the trash can is always positioned between the two clamping arms. This eliminates the need for an additional clamping mechanism inside the cleaning chamber, greatly simplifying the structure of the cleaning vehicle and reducing costs.

[0018] 2. By using a rolling element that rolls on the inclined surface of the wedge block to drive the two clamping arms to move closer or further apart, the garbage can can be clamped or released using a purely mechanical structure. This not only has a simple structure and stable operation, but also further reduces costs.

[0019] 3. With the cooperation of screws and two hanging rings, the moment of inertia of the clamping arm at the rolling element position is increased, thereby improving the torsional resistance at that position and ensuring stable operation of the clamping arm. Attached Figure Description

[0020] Figure 1 This is a 3D schematic diagram of the garbage can cleaning truck.

[0021] Figure 2 This is a 3D schematic diagram of the trash can tipping mechanism.

[0022] Figure 3 yes Figure 2 Enlarged diagram of point A in the middle.

[0023] Figure 4 This is a schematic diagram of the connection between the clamping arm and the rotating shaft.

[0024] In the diagram, 1. Carriage; 1a. Cleaning chamber; 1b. Opening; 1c. Door; 2. Swing motor; 3. Rotating shaft; 4. Clamping arm; 4a. Hanging ring; 5. Shaft; 6. Clamping port; 7. Torsion spring; 8. Connecting sleeve; 9. Drive seat; 9a. Wedge block; 10. Rolling element; 11. Screw; 12. Stop; 12a. Limiting block; 12b. Slide groove; 13. Seat body; 13a. Plate body; 14. Locking element. Detailed Implementation

[0025] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0026] Example 1: As Figure 1 As shown, in the garbage bin tipping mechanism of the garbage bin cleaning vehicle, the cleaning vehicle includes a compartment 1, a cleaning chamber 1a is formed inside the compartment 1, and an opening 1b is provided on the front side of the compartment 1 for the garbage bin to extend into or out of the cleaning chamber 1a. In the actual product, a door 1c is hinged to the compartment 1 at the opening 1b position to open and close the opening 1b.

[0027] like Figure 1 and Figure 2As shown, the garbage bin tipping mechanism of this garbage bin cleaning vehicle includes a swing motor 2 and a rotating shaft 3 horizontally rotatably disposed within the cleaning chamber 1a, with the swing motor 2 driving the rotating shaft 3 to rotate. Specifically, both ends of the rotating shaft 3 are rotatably disposed within the cleaning chamber 1a via bearings; this connection method is conventional and will not be elaborated upon here. The swing motor 2 is connected to the rotating shaft 3 via a gearbox. In this case, the gearbox is fixed to the vehicle body 1, and the swing motor 2 is fixed to the gearbox. The main shaft of the swing motor 2 is connected to the input shaft of the gearbox, and the output shaft of the gearbox is connected to the right end of the rotating shaft 3. Preferably, both the swing motor 2 and the gearbox are located outside the cleaning chamber 1a, in which case the right end of the rotating shaft 3 extends out of the cleaning chamber 1a.

[0028] like Figure 2 As shown, a strip-shaped clamping arm 4 is provided on one side of the rotating shaft 3. There are two clamping arms 4, which are arranged symmetrically on the left and right. The clamping arm 4 has two ends, namely a head end and a tail end. The tail end of the clamping arm 4 is hinged to the rotating shaft 3 through a shaft 5 so that the clamping arm 4 can swing left and right. A clamping opening 6 for clamping the garbage can is formed between the head ends of the two clamping arms 4. Rotating the rotating shaft 3 can cause the head end of the clamping arm 4 to extend into or out of the cleaning chamber 1a through the opening 1b. Each shaft 5 is fitted with a torsion spring 7. The two ends of the torsion spring 7 are fixed to the rotating shaft 3 and the corresponding clamping arm 4, respectively. Under the action of the torsion spring 7, the two clamping arms 4 have a tendency to move towards each other. A driving mechanism is provided at the opening 1b or outside the cleaning chamber 1a. When the rotating shaft 3 rotates counterclockwise until the head end of the clamping arm 4 extends out of the cleaning chamber 1a, the driving mechanism will push the two clamping arms 4 to move in opposite directions against the torque of their respective torsion springs 7. When the rotating shaft 3 rotates clockwise, the driving mechanism will release the action on the clamping arms 4. The drive mechanism is preferably positioned at the opening 1b to reduce the amount of protrusion of the cleaning vehicle.

[0029] The usage process is as follows: Initially, under the action of the drive mechanism, the two clamping arms 4 move in opposite directions to widen the clamping opening 6. Then, the trash can is manually pushed into the clamping opening 6. Then, the drive mechanism releases the action on the clamping arms 4, so that the two clamping arms 4 move towards each other under the action of the torsion spring 7 to clamp the trash can. As the rotating shaft 3 rotates clockwise, the trash can enters the cleaning chamber 1a for cleaning. After cleaning, the rotating shaft 3 rotates counterclockwise to extend the trash can out of the cleaning chamber 1a. Under the action of the drive mechanism, the two clamping arms 4 release the trash can, and the trash can is manually removed, completing one cleaning process.

[0030] During the flipping and cleaning process, the trash can is always positioned between the two clamping arms 4. This eliminates the need for an additional clamping mechanism in the cleaning chamber 1a during actual use, greatly simplifying the structure of the cleaning vehicle and reducing costs.

[0031] In this embodiment,

[0032] like Figure 2 and Figure 4As shown, the connection between the clamping arm 4 and the rotating shaft 3 is as follows: Two connecting sleeves 8 are sleeved and fixed on the rotating shaft 3, and the two connecting sleeves 8 are respectively positioned opposite the two clamping arms 4. A slot matching the end of the clamping arm 4 is provided on the side wall of the connecting sleeve 8. The slot is U-shaped, and the end of the clamping arm 4 is pivotally connected to the corresponding slot via a shaft 5. Preferably, the shaft 5 is a second bolt. A U-shaped mounting groove is provided on the end face of the clamping arm 4. Both the mounting groove and the slot include two opposing side walls. A connecting hole 1 is provided through the side walls of the slot for the shank of the second bolt to pass through. A connecting hole 2 is provided through the side walls of the mounting groove for the shank of the second bolt to pass through. A pressure cap is screwed onto the shank of the second bolt, and the head of the second bolt and the pressure cap are respectively pressed against the opposite sides of the side walls of the slot.

[0033] Two torsion springs 7 are respectively installed in two mounting slots, and the two ends of the torsion springs 7 are respectively fixed to the corresponding connecting sleeves 8 and the corresponding clamping arms 4. In the actual product, the torsion springs 7 are stainless steel double torsion springs 7, and the torsion of the torsion springs 7 is selected to be greater than 10 N·m, so as to basically meet the clamping requirements of plastic environmentally friendly trash cans on the market.

[0034] like Figures 1 to 3 As shown, the drive mechanism consists of two drive seats 9 fixed to the carriage 1 and arranged side by side. Each drive seat 9 has a wedge-shaped block 9a, and the two wedge-shaped blocks 9a are symmetrically arranged. Rolling elements 10 with circular outer surfaces are rotatably mounted on the end sidewalls of both clamping arms 4. The two rolling elements 10 are positioned between the two clamping arms 4, and their outer surfaces can press against the inclined surfaces of the two wedge-shaped blocks 9a by rotating the shaft 3. The rolling elements 10 drive the two clamping arms 4 to move closer or further apart by rolling on the inclined surfaces of the wedge-shaped blocks 9a, thus achieving the control of clamping or releasing the garbage bin using a purely mechanical structure. This not only results in a simple structure and stable operation but also further reduces costs.

[0035] The rolling element 10 is a roller, and the roller is mounted on the corresponding clamping arm 4 via a connecting shaft. Of course, the rolling element 10 can also be a rolling bearing. A positioning shaft that mates with the rolling bearing is fixed on the clamping arm 4. The inner ring of the rolling bearing is fitted and fixed on the positioning shaft, and the outer ring of the rolling bearing is used to contact the inclined surface of the wedge block 9a.

[0036] To further explain, each of the two clamping arms 4 has two hanging rings 4a formed on its side, and all four hanging rings 4a are located between the two clamping arms 4. The hanging rings 4a extend axially along the thickness direction of the clamping arm 4, and the two hanging rings 4a on the same clamping arm 4 are arranged side by side along the thickness direction of the clamping arm 4. In the same clamping arm 4, a gap is formed between the two hanging rings 4a, and one end face of the rolling element 10 is facing and close to this gap. At this time, the rolling element 10 and the gap are distributed along the length direction of the clamping arm 4. The same screw 11 is inserted into the two hanging rings 4a, and a nut is screwed onto the shank of the screw 11. The head of the screw 11 and the nut are respectively pressed against the opposite sides of the two hanging rings 4a. With the cooperation of the screw 11 and the two hanging rings 4a, the moment of inertia of the section of the clamping arm 4 at the position of the rolling element 10 is increased, thereby improving the torsional resistance at this position and ensuring the stable operation of the clamping arm 4.

[0037] like Figure 1 and Figure 2 As shown, a limiting component is also provided on the rotating shaft 3. The limiting component is located between the ends of the two clamping arms 4 and is used to limit the depth of the trash can extending into the clamping opening 6, so that the trash can is pushed into place in one go, making it convenient to use. Specifically, the limiting component includes a long strip-shaped limiting block 12a. The limiting block 12a is set towards the clamping opening 6 and can press against the outer wall of the trash can to prevent the trash can from extending further into the clamping opening 6. It has the advantages of simple structure and stable operation. In the actual product, when the first end of the clamping arm 4 is outside the cleaning chamber 1a, the length of the limiting block 12a extends vertically. The limiting block 12a is set at an angle, and the upper end of the limiting block 12a is further back than the lower end of the limiting block 12a, so that the limiting block 12a fits more closely to the outer wall of the trash can.

[0038] Further explanation: the limiting component also includes a locking element 14, a T-shaped stop 12, and a base 13 fixedly connected to the rotating shaft 3. The base 13 has a mounting hole through which the rotating shaft 3 passes, and the base 13 is fitted and fixed to the rotating shaft 3 through the mounting hole. The stop 12 consists of a head and a rod, with the head being the aforementioned limiting block 12a. The rod of the stop 12 is radially slidable on the base 13 along the rotating shaft 3, and the distance between the limiting block 12a and the clamping opening 6 can be adjusted by sliding the stop 12. The locking element 14 locks the stop 12 in the sliding position. This design facilitates adjustment of the position of the limiting block 12a and makes debugging convenient.

[0039] In this embodiment, the base 13 has a plate 13a for contacting and supporting the rod of the stop 12. The rod of the stop 12 has a through-groove 12b, the length of which extends along the sliding direction of the stop 12. The plate 13a has a corresponding threaded hole. The locking member 14 is a first bolt that matches the groove 12b. The shank of the first bolt passes through the groove 12b and is screwed into the threaded hole. The head of the first bolt is pressed against the rod of the stop 12. The first bolt is used to lock the stop 12 and also cooperates with the groove 12b to form a sliding fit between the stop 12 and the base 13, which has the advantages of simple structure and convenient assembly. Preferably, the rod of the stop 12 is also plate-shaped; there are two limiting members distributed along the axis of the rotating shaft 3.

[0040] Example 2: The structure and principle of Example 2 are basically the same as those of Example 1. The difference is that the driving mechanism consists of two electromagnets installed on the carriage 1. When the electromagnets are energized, the actuating shafts of the two electromagnets press against the two clamping arms 4 respectively, so as to push the two clamping arms 4 to swing against the torque of their respective torsion springs 7 to expand the clamping opening 6. The electromagnets are existing products and can be purchased directly from the market.

[0041] Example 3: The structure and principle of Example 3 are basically the same as those of Example 1. The difference is that: a guide sleeve matching the rod of the stop 12 is formed on the base 13, and the guide sleeve is sleeved on the rod of the stop 12. A threaded hole is radially penetrating the side wall of the guide sleeve. The locking member 14 is a third bolt screwed into the threaded hole, and the rod of the third bolt is pressed against the rod of the stop 12.

[0042] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A garbage bin tipping mechanism for a garbage bin cleaning vehicle, the cleaning vehicle including a compartment (1), a cleaning chamber (1a) formed inside the compartment (1), and an opening (1b) on the front side of the compartment (1) for garbage bins to extend into or out of the cleaning chamber (1a), the tipping mechanism including a swing motor (2) and a rotating shaft (3) horizontally rotatably disposed in the cleaning chamber (1a), the swing motor (2) driving the rotating shaft (3) to rotate, a strip-shaped clamping arm (4) is provided on one side of the rotating shaft (3), there are two clamping arms (4) arranged symmetrically on the left and right, characterized in that, The end of the clamping arm (4) is hinged to the rotating shaft (3) through the shaft (5) so that the clamping arm (4) can swing left and right. A clamping opening (6) for clamping the garbage can is formed between the ends of the two clamping arms (4). Rotating the rotating shaft (3) can allow the ends of the clamping arms (4) to extend into or out of the cleaning chamber (1a) through the opening (1b). Each shaft (5) is fitted with a torsion spring (7), and under the action of the torsion spring (7), the two clamping arms (4) tend to move towards each other. A driving mechanism is provided at the opening (1b) or outside the cleaning chamber (1a). When the rotating shaft (3) rotates counterclockwise until the ends of the clamping arms (4) extend out of the cleaning chamber (1a), the driving mechanism will push the two clamping arms (4) to move in opposite directions against the torque of their respective torsion springs (7). The driving mechanism will release the action on the clamping arms (4) when the rotating shaft (3) rotates clockwise.

2. The trash can flipping mechanism for a trash can washing cart according to claim 1, wherein, The drive mechanism consists of two drive seats (9) fixed on the carriage (1) and arranged side by side. Each drive seat (9) has a wedge block (9a) and the two wedge blocks (9a) are arranged symmetrically on the left and right. Rollers (10) with circumferential surfaces are rotatably arranged on the end side walls of the two clamping arms (4). The two rollers (10) are located between the two clamping arms (4) and can be rotated by the rotating shaft (3) so that the outer surfaces of the two rollers (10) press against the inclined surfaces of the two wedge blocks (9a) respectively.

3. The trash can flipping mechanism for a trash can cleaning cart according to claim 1, wherein, The rotating shaft (3) is also provided with a limiting member, which is located between the ends of the two clamping arms (4) and is used to limit the depth of the trash can into the clamping opening (6).

4. The trash can flipping mechanism for a trash can washing cart according to claim 3, wherein, The limiting component includes a long strip-shaped limiting block (12a) which is positioned toward the clamping opening (6) and can press against the outer wall of the trash can.

5. The trash can flipping mechanism for a trash can washing cart according to claim 4, wherein, The limiting component also includes a locking component (14), a T-shaped stop (12), and a base (13) fixed to the rotating shaft (3). The stop (12) consists of a head and a rod. The head of the stop (12) is the aforementioned limiting block (12a). The rod of the stop (12) is slidably disposed on the base (13) along the rotating shaft (3). The distance between the limiting block (12a) and the clamping port (6) can be adjusted by sliding the stop (12). The locking component (14) locks the stop (12) in the sliding position.

6. The trash can flipping mechanism for a trash can washing cart according to claim 5, wherein, The base (13) has a plate (13a) for contacting and supporting the rod of the stop (12). The rod of the stop (12) has a through groove (12b) that extends along the sliding direction of the stop (12). The plate (13a) has a corresponding threaded hole. The locking member (14) is a first bolt that matches the groove (12b). The shank of the first bolt passes through the groove (12b) and is screwed into the threaded hole. The head of the first bolt is pressed against the rod of the stop (12).

7. The trash can flipping mechanism for a trash can washing cart according to claim 2, wherein, Two hanging rings (4a) are formed on the sides of both clamping arms (4). The hanging rings (4a) extend axially along the thickness direction of the clamping arm (4), and the two hanging rings (4a) on the same clamping arm (4) are arranged side by side along the thickness direction of the clamping arm (4). In the same clamping arm (4), a gap is formed between the two hanging rings (4a), and one end face of the rolling element (10) is facing and close to the gap. The same screw (11) is inserted in the two hanging rings (4a), and a nut is screwed on the shank of the screw (11). The head of the screw (11) and the nut are pressed against the opposite sides of the two hanging rings (4a).

8. The trash can flipping mechanism for a trash can washing cart according to claim 1, wherein, The driving mechanism consists of two electromagnets installed on the carriage (1), and when the electromagnets are energized, the actuating shafts of the two electromagnets press against the two clamping arms (4) respectively.

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