Hook arm type solid waste vehicle locking structure

Abstract

The utility model relates to the field of hook arm type solid waste vehicles, in particular to a hook arm type solid waste vehicle locking structure which comprises a hook rotationally installed on a compartment and used for hooking a tail door, a driving piece used for driving the hook to rotate and a self-locking limiting assembly installed on the compartment. The limiting device is used for limiting rotation of the hook after the hook hooks the tail door. The device has the effects of prolonging the service life of the driving part and improving the stability in the solid waste transportation process.

Description

Technical Field

[0001] The present application relates to the technical field of hook-arm type solid waste vehicles, and in particular to a locking structure of a hook-arm type solid waste vehicle. Background Art

[0002] The hook-arm solid waste truck is mainly used for transporting solid waste. The rear of the truck is opened with an opening and a tailgate. The side of the tailgate away from the ground is connected to the truck by rotation. The tailgate is rotated so that the side of the tailgate close to the ground is away from the truck so that the solid waste inside the truck can flow out automatically.

[0003] A locking structure is set at the position of the tailgate at the rear of the vehicle to prevent the tailgate from opening during the transportation of solid waste. A common locking structure is a hook connected to the rear of the vehicle by rotation, which can be hooked on the side of the tailgate close to the ground by rotation to limit the rotation of the tailgate.

[0004] The rotation of the hook is usually controlled by a hydraulic cylinder. During the solid waste transportation process, the reaction force of the vehicle door is mainly applied to the hydraulic cylinder. On the one hand, it has a certain impact on the service life of the hydraulic cylinder. On the other hand, there is a possibility that the hydraulic cylinder is damaged during the solid waste transportation, resulting in mud spilling when the tailgate is opened, resulting in insufficient stability during the solid waste transportation process. Utility Model Content

[0005] In order to improve the service life of the driving parts and the stability during the solid waste transportation process, the present application provides a hook-arm type solid waste vehicle locking structure.

[0006] The present application provides a hook-arm type solid waste vehicle locking structure that adopts the following technical solution:

[0007] A hook-arm type solid waste vehicle locking structure comprises a hook rotatably mounted on a vehicle body for hooking a tailgate, a driving member for driving the hook to rotate, and a self-locking limit assembly, wherein the self-locking limit assembly is mounted on the vehicle body for limiting the rotation of the hook after the hook hooks the tailgate.

[0008] By adopting the above technical solution, the rotation of the rotating plate is limited by the self-locking limit assembly. On the one hand, the driving member and the self-locking limit assembly are doubly limited, thereby improving the stability of the hook hooking the tailgate. On the other hand, the self-locking limit assembly shares the reaction force received by the hook after the tailgate abuts against the car body, thereby improving the service life of the driving member.

[0009] Optionally, the self-locking limit assembly includes a swing arm and a connecting rod, one end of the swing arm is rotatably connected to the car body, the connecting rod is located between the swing arm and the hook, one end of the connecting rod is rotatably connected to the swing arm and the other end is rotatably connected to the hook, the rotation axis between the swing arm and the car body is defined as a first axis, the rotation axis between the connecting rod and the swing arm is defined as a second axis, the rotation axis between the connecting rod and the hook is defined as a third axis, the plane coinciding with the first axis and the third axis is defined as a critical surface, a blocking surface is provided on the car body, before the hook is hooked on the tailgate, the blocking surface and the second axis are respectively located on both sides of the critical surface, when the swing arm is rotated to make the second axis approach the critical surface, the hook can be driven close to the tailgate, and the blocking surface is used to block the end of the swing arm close to the connecting rod from moving in a direction away from the critical surface after the second axis and the blocking surface are on the same side of the critical surface.

[0010] By adopting the above technical solution, the swing arm is rotated to drive the hook to rotate and approach the tailgate. When the second axis coincides with the critical surface, the hook is subjected to the reaction force of the tailgate. The swing arm is further rotated so that the second axis is located on the side of the critical surface close to the blocking surface. Under the reaction force of the tailgate, the end of the swing arm close to the connecting rod has a tendency to rotate in a direction away from the critical surface. The blocking surface cooperates to block the swing arm from moving in a direction away from the critical surface, thereby limiting the rotation of the hook.

[0011] Optionally, the driving member is connected to the swing arm to drive the swing arm to rotate.

[0012] By adopting the above technical solution, the driving member drives the swing arm to rotate, which in turn drives the swing arm to rotate automatically, and at the same time drives the hook to rotate automatically, so that the staff does not need to manually interfere with the rotation of the swing arm during the process of locking the tailgate, thereby reducing the labor burden of the staff.

[0013] Optionally, a locking column is provided on the tailgate corresponding to the hook, and the locking column can be passed through the inside of the hook.

[0014] By adopting the above technical solution and providing a locking column, it is convenient for the hook to be hooked and connected to the tailgate.

[0015] Optionally, a rotating shaft is provided between the swing arm and the connecting rod, and the swing arm and the connecting rod are rotatably sleeved on the connecting shaft.

[0016] By adopting the above technical solution, the swing arm and the connecting rod are both sleeved on the connecting shaft, thereby realizing the rotational connection between the swing arm and the connecting rod.

[0017] Optionally, a driving block is provided on the carriage at a position corresponding to the rotating shaft, the driving block is slidably connected to the carriage in a direction perpendicular to the critical surface, and the rotating shaft is slidably connected to the driving block in a direction perpendicular to the sliding direction of the driving block.

[0018] By adopting the above technical solution, the sliding drive block can drive the swing arm to rotate, and the rotation of the swing arm drives the connecting rod to move, and then drives the hook to rotate, thereby realizing the control of the rotation of the hook.

[0019] Optionally, the tailgate is also fixedly connected to an intercepting rod, and the carriage is fixedly connected to a hanging plate, the hanging plate is hooked on the intercepting rod from above the intercepting rod, and the tailgate can move downward, and the tailgate can be separated from the intercepting rod when moving downward.

[0020] By adopting the above technical solution, the tailgate and the carriage are reconnected through the intercepting rod and the hanging plate, thereby improving the stability of the connection between the tailgate and the carriage.

[0021] Optionally, the locking column is located above the hook, and the rotation of the hook can drive the tailgate to move upward.

[0022] By adopting the above technical solution, during the process of locking the tailgate, the driving member drives the swing arm to rotate, thereby driving the hook to rotate. The hook hooks the locking column and drives the tailgate to move upward, so that the hanging plate is connected to the interception rod, and the automatic connection between the hanging plate and the interception rod is realized.

[0023] In summary, the present application includes the following beneficial technical effects: the rotation of the hook is limited by the self-locking limit assembly, which on the one hand improves the stability of the tailgate when it is locked, and on the other hand can share the reaction force received by the hook drive component and increase the life of the drive component. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0025] Figure 2 It is a schematic diagram of the structure of the self-locking limit assembly of an embodiment of the present application.

[0026] Figure numerals: 11. hook; 12. driving part; 13. locking column; 2. driving member; 3. self-locking limit assembly; 31. swing arm; 32. connecting rod; 33. rotating shaft; 34. driving block; 35. baffle; 36. blocking surface; 41. intercepting rod; 42. hanging plate; 51. mounting plate; 52. hanging hole; 53. supporting column; 6. tailgate; 7. compartment. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-2 This application is described in further detail.

[0028] The embodiment of the present application discloses a hook-arm type solid waste vehicle locking structure.

[0029] Reference Figure 1 and Figure 2A hook-arm type solid waste vehicle locking structure includes a hook 11 rotatably connected to a vehicle compartment 7 for hooking a tailgate 6 and a driving member 2 for driving the hook 11 to rotate. A self-locking limiter assembly 3 for limiting the rotation of the hook 11 is also provided on the vehicle compartment 7. The rotation of the rotating hook 11 is limited by the self-locking limiter assembly 3, thereby sharing the reaction force of the hook 11 borne by the driving member 2, which not only improves the service life of the driving member 2, but also doubles the guarantee to improve the stability of the solid waste vehicle during transportation.

[0030] Reference Figure 1 and Figure 2 The tailgate 6 is provided with a locking column 13 in a direction parallel to the rotation axis of the hook 11. The locking column 13 is located above the hook 11, and one end of the locking column 13 is welded to the tailgate 6, and the other end is passed through the hook 11 in a direction parallel to the axis of the mounting plate 51. The connection between the tailgate 6 and the hook 11 is realized.

[0031] Reference Figure 1 and Figure 2 The hook 11 is provided with a driving part 12, which is integrally formed with the hook 11 and is arranged on one side of the mounting plate 51 in a direction perpendicular to the rotation axis 33 of the hook 11. The hook 11 can be driven to rotate by swinging the hook 11. The self-locking limit assembly 3 is located above the hook 11, which, on the one hand, reduces the phenomenon that the connection rod 32 is connected to the hook 11 and affects the hook 11 hooking the locking column 13. On the other hand, the self-locking limit assembly 3 can be arranged above the hook 11, effectively utilizing the space and reducing the interference between the self-locking limit assembly 3 and the vehicle body.

[0032] Reference Figure 1 and Figure 2The self-locking limit assembly 3 includes a swing arm 31 and a connecting rod 32, and one end of the swing arm 31 is rotatably connected to the carriage 7. The connecting rod 32 is located between the hook 11 and the swing arm 31, and the two ends of the connecting rod 32 are rotatably connected to the driving part 12 and the swing arm 31, respectively. Rotating the swing arm 31 can drive the hook 11 to rotate. The rotation axis 33 line between the swing arm 31 and the carriage 7 is defined as the first axis, the rotation axis 33 line between the connecting rod 32 and the swing arm 31 is defined as the second axis, and the rotation axis 33 line between the connecting rod 32 and the driving part 12 is defined as the third axis. When the first axis, the second axis and the third axis are located in the same plane, it is the critical state of the self-locking limit assembly 3, and the plane is defined as the critical surface. The two sides of the critical surface are defined as the active area and the locking area respectively. A blocking surface 36 is provided in the locking area, and the blocking surface 36 can prevent the connecting rod 32 from moving in the direction away from the critical surface in the locking area. Before the tailgate 6 is locked, the second axis is located in the active area. During the locking process of the tailgate 6, the second axis moves in the direction close to the critical surface, driving the hook 11 to approach the locking column 13. After the hook 11 is pressed against the locking column 13, the hook 11 is subjected to the reaction force of the locking column 13 and has a tendency to move in the direction away from the locking column 13; the swing arm 31 is continuously rotated so that the second axis is located in the locking area. After the second axis is located in the locking area, the swing arm 31 has a tendency to move in the direction away from the critical surface under the action of the reaction force of the locking column 13. At the same time, the swing arm 31 abuts against the blocking surface 36, limiting the rotation of the swing arm 31 in the direction away from the critical surface, thereby realizing the self-locking of the rotation of the mounting plate 51.

[0033] Reference Figure 1 and Figure 2 , a rotating shaft 33 is arranged between the swing arm 31 and the connecting rod 32, and the connecting rod 32 and the swing arm 31 are both sleeved on the rotating shaft 33 to realize the rotation connection between the connecting rod 32 and the swing arm 31. A driving block 34 is arranged at a position corresponding to the rotating shaft 33 on the carriage 7, and the driving block 34 is slidably connected to the carriage 7 in a direction perpendicular to the critical surface. One end of the rotating shaft 33 is slidably connected to the driving block 34 in a direction perpendicular to the sliding direction of the driving block 34. The sliding driving block 34 can drive the swing arm 31 to rotate. In this embodiment, the driving member 2 is a hydraulic cylinder, which is arranged along the sliding direction of the driving block 34, and the two ends of the hydraulic cylinder are respectively connected to the driving block 34 and the carriage 7. The sliding of the driving block 34 is controlled by the extension and contraction of the hydraulic cylinder piston rod, and the self-locking property of the self-locking limit assembly 3 is used to limit the rotation of the hook 11, thereby improving the service life of the hydraulic cylinder, thereby improving the stability of the solid waste vehicle during use.

[0034] Reference Figure 1 and Figure 2The carriage 7 is provided with a baffle 35, which is a plate-shaped structure and is arranged in a direction perpendicular to the critical surface. A relief groove is provided on the side of the baffle 35 close to the swing arm 31. The relief groove forms a blocking surface 36 in the locking area for blocking the swing arm 31 from rotating, thereby limiting the swing arm 31. The end of the hydraulic cylinder is connected to the baffle 35, which facilitates the connection between the hydraulic cylinder and the carriage 7.

[0035] Reference Figure 1 and Figure 2 A plurality of intercepting rods 41 are arranged on the tailgate 6 in the vertical direction. The intercepting rods 41 are arranged parallel to the locking column 13 and one end is welded to the tailgate 6. A hanging plate 42 is correspondingly arranged on the carriage 7. The hanging plate 42 includes a horizontal portion and a vertical portion. The horizontal portion is welded to the carriage 7. The vertical portion is located on the side of the intercepting rod 41 away from the carriage 7 and is welded to the horizontal portion to further limit the rotation of the tailgate 6 and improve the stability of the carriage 7 during the transportation of the solid waste vehicle.

[0036] Reference Figure 1 and Figure 2 A cylindrical support column 53 is horizontally welded on the carriage 7, a mounting plate 51 is provided on the tailgate 6, a hanging hole 52 is provided on the mounting plate 51, the support column 53 is inserted into the hanging hole 52, and can rotate around its own axis relative to the mounting plate 51. The rotation connection between the tailgate 6 and the carriage 7 is realized. The hanging hole 52 is a waist-shaped groove, and the length direction of the hanging hole 52 is inclined downward from the end away from the tailgate 6 to the end close to the tailgate 6 along the direction perpendicular to the tailgate 6. During the unloading process, the mounting plate 51 slides relative to the support column 53, so that the tailgate 6 slides along the length direction parallel to the hanging hole 52, so that the intercepting rod 41 can be separated from the hanging plate 42. After the intercepting rod 41 is separated from the hanging plate 42, the tailgate 6 can rotate. During the closing process of the tailgate 6, the driving member 2 drives the swing arm 31 to rotate, thereby driving the hook 11 to lift the locking column 13 from below, driving the tailgate 6 to slide in a direction parallel to the length of the hanging hole 52, and moving the intercepting rod 41 to the side of the vertical portion of the hanging plate 42 close to the vehicle compartment 7, so that the hanging plate 42 limits the displacement of the tailgate 6 in the horizontal direction.

[0037] The implementation principle of the locking structure of a hook-arm type solid waste vehicle in the embodiment of the present application is as follows: the self-locking limit assembly 3 is provided to limit the rotation of the hook 11, and cooperates with the driving member 2 to achieve double limit, thereby improving the stability of the solid waste transport vehicle during transportation, and at the same time sharing the reaction force received by the driving member 2, thereby increasing the service life of the driving member 2.

[0038] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A hook-arm type solid waste vehicle locking structure, comprising a hook (11) rotatably mounted on a vehicle body (7) for hooking a tailgate (6), and a driving member (2) for driving the hook (11) to rotate, characterized in that: It also includes a self-locking limit assembly (3), which is mounted on the vehicle body (7) and is used to limit the rotation of the hook (11) after the hook (11) is hooked on the tailgate (6).

2. A hook-arm type solid waste vehicle locking structure according to claim 1, characterized in that: The self-locking limit assembly (3) comprises a swing arm (31) and a connecting rod (32); one end of the swing arm (31) is rotatably connected to the carriage (7); the connecting rod (32) is located between the swing arm (31) and the hook (11); one end of the connecting rod (32) is rotatably connected to the swing arm (31) and the other end is rotatably connected to the hook (11); a rotation axis (33) line between the swing arm (31) and the carriage (7) is defined as a first axis line, a rotation axis (33) line between the connecting rod (32) and the swing arm (31) is defined as a second axis line, and a rotation axis (33) line between the connecting rod (32) and the hook (11) is defined as a second axis line. The line (33) is a third axis, and a plane that coincides with the first axis and the third axis is defined as a critical surface. A blocking surface (36) is provided on the carriage (7). Before the hook (11) hooks the tailgate (6), the blocking surface (36) and the second axis are respectively located on both sides of the critical surface. When the swing arm (31) is rotated to make the second axis approach the critical surface, the hook (11) can be driven to approach the tailgate (6). The blocking surface (36) is used to block the end of the swing arm (31) close to the connecting rod (32) from moving in a direction away from the critical surface after the second axis and the blocking surface (36) are on the same side of the critical surface.

3. The hook-arm type solid waste vehicle locking structure according to claim 2, characterized in that: The driving member (2) is connected to the swing arm (31) and is used to drive the swing arm (31) to rotate.

4. A hook-arm type solid waste vehicle locking structure according to claim 3, characterized in that: A locking column (13) is provided on the tailgate (6) corresponding to the hook (11), and the locking column (13) can be inserted into the hook (11).

5. The hook-arm type solid waste vehicle locking structure according to claim 4, characterized in that: A rotating shaft (33) is provided between the swing arm (31) and the connecting rod (32), and the swing arm (31) and the connecting rod (32) are rotatably sleeved on the connecting shaft.

6. A hook-arm type solid waste vehicle locking structure according to claim 5, characterized in that: A driving block (34) is provided on the carriage (7) at a position corresponding to the rotating shaft (33); the driving block (34) is slidably connected to the carriage (7) in a direction perpendicular to the critical surface; and the rotating shaft (33) is slidably connected to the driving block (34) in a direction perpendicular to the sliding direction of the driving block (34).

7. The hook-arm type solid waste vehicle locking structure according to claim 4, characterized in that: The tailgate (6) is also fixedly connected to an intercepting rod (41), and the carriage (7) is fixedly connected to a hanging plate (42), wherein the hanging plate (42) is hooked on the intercepting rod (41) from above the intercepting rod (41), and the tailgate (6) can move downwards, and the tailgate (6) can be separated from the intercepting rod (41) when moving downwards.

8. The hook-arm type solid waste vehicle locking structure according to claim 7, characterized in that: The locking column (13) is located above the hook (11), and the rotation of the hook (11) can drive the tailgate (6) to move upward.

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