Front box body lock for pull arm top mounting

Abstract

The utility model relates to the technical field of pull arm hooks, in particular to a front box lock for pull arm loading, which comprises two pull arm girders arranged at an interval, a lock hook frame is arranged on the pull arm girders, and a connecting assembly is arranged on the lock hook frame. The connecting assembly is used for installing the lock hook frame on the pull arm girder in a sliding mode. A lock hook body is rotationally installed on the lock hook frame, an adjusting assembly is arranged on the lock hook frame, and the adjusting assembly is used for controlling the locking state and the unlocking state of the lock hook body. According to the box transportation device, when irregular boxes with high heights or high gravity centers are transported, the safety and stability in the transportation process can be improved, and potential safety hazards are reduced.

Description

Technical Field

[0001] The present application relates to the technical field of hook lifts, and in particular to a front box lock for installation on a hook lift. Background Art

[0002] The hook arm type self-loading and unloading device can be installed on a special truck chassis. It is a special working device that can realize the functions of pulling, unloading and lifting the box through the rotation of the hook arm combined with its sliding or swinging. It is widely used in sanitation transfer vehicles, etc. It has the advantages of being able to easily replace the garbage truck box and facilitate the dumping of garbage.

[0003] After the detachable garbage truck fixes the box body to the hook device, it needs to be able to firmly lock the box body and maintain the stability of the box body while the vehicle is driving.

[0004] The existing Chinese patent with publication number CN208249067U discloses a hooklift device, including: a hooklift part, including a main arm, a sliding arm, a pulling arm and a hook, the sliding arm, the pulling arm and the hook are an L-shaped whole, the main arm is hollow inside, and has a slide groove for the sliding arm to slide therein; a locking member, including a box lock and a self-unloading lock connected as one body, the locking member is installed on the rear frame, and the box and the main arm are locked by rotation, and the locking member is driven by the sliding arm; a control system, including a position sensor, a control circuit, and an operating box, the position sensor includes a box lock sensor, a self-unloading lock sensor, and a sliding arm position sensor, the sliding arm position sensor is installed on the limit devices located at both ends of the hollow structure of the main arm, the position sensor sends the position information to the control circuit, the control circuit has an analysis module, the state of the hooklift device is intelligently analyzed, and a warning message is given through the indicator light on the operating box.

[0005] When the above-mentioned hook arm device is in use, the box body is pulled up by the action of the hook arm and the hook, and the locking member is located at the tail of the hook arm device. When the box body is placed on the hook arm device, the locking member locks the box body again.

[0006] With respect to the above-mentioned related technologies, the inventors believe that when transporting boxes with a high height, a high center of gravity, or an irregular shape, only a set of box locks at the rear is difficult to ensure the safety and stability of the box during transportation or storage, which poses a great safety hazard. Utility Model Content

[0007] The technical problem to be solved by the utility model is to provide a front box lock for installation on a pulling arm, which solves the technical problem that when a box with a high transportation height or a high center of gravity or an irregular shape is transported, only a group of box locks at the rear cannot ensure the safety and stability of the box during transportation or storage, which poses a great safety hazard.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A front box lock for installation on a pulling arm comprises a pulling arm beam, two pulling arm beams are arranged at intervals, a locking hook frame is arranged on the pulling arm beam, a connecting component is arranged on the locking hook frame, and the connecting component is used to slidingly install the locking hook frame on the pulling arm beam; a locking hook body is rotatably installed on the locking hook frame, and an adjusting component is arranged on the locking hook frame, and the adjusting component is used to control the locking and unlocking states of the locking hook body.

[0010] Through the above technical solution, the lock hook frame is installed on the arm beam. When the position of the lock hook frame needs to be adjusted, the connection component adjusts the position of the lock hook frame. When the box is placed on the arm hook device, the adjustment component adjusts the lock hook body to a locked state. When the box needs to be removed, the adjustment component adjusts the lock hook body to an unlocked state. By adding a set of lock hook frames located on the front side to cooperate with the original box lock, when transporting boxes with a high height or a high center of gravity and irregular shapes, the safety and stability during transportation can be improved, and safety hazards can be reduced.

[0011] Furthermore, the adjustment assembly includes an adjustment cylinder and an adjustment pin, the adjustment pin is installed on the lock hook body, one end of the adjustment cylinder is rotatably installed on the lock hook frame, and the other end is rotatably connected to the adjustment pin.

[0012] Through the above technical solution, the adjusting cylinder drives the pin hook body to move on the lock hook frame through the adjusting pin shaft, so that the degree of automation of locking and unlocking the lock hook body is improved.

[0013] Furthermore, a guide groove is provided on the lock hook frame, one end of the adjusting pin shaft passes through the guide groove, and the end of the adjusting pin shaft passing through the guide groove is connected to the adjusting oil cylinder.

[0014] Through the above technical solution, the adjustment pin moves along the guide groove on the lock hook frame, so that the stability of the lock hook body moving on the lock hook frame is improved.

[0015] Furthermore, a flip groove is provided on the lock hook frame, a flip pin is installed on the lock hook body, and one end of the flip pin passes through the flip groove.

[0016] Through the above technical solution, during the movement of the lock hook body, the lock hook body is flipped along the flip groove on the lock hook frame through the flip pin, thereby reducing the movement space of the lock hook body.

[0017] Furthermore, the connecting assembly includes a sliding frame, a sliding cavity is formed in the sliding frame, the pulling arm beam passes through the sliding cavity, and the locking hook frame is installed on the sliding frame.

[0018] Through the above technical solution, the arm girder passes through the sliding cavity of the sliding frame, so that the convenience of the sliding frame sliding on the arm girder is improved.

[0019] Furthermore, a support frame is provided between the sliding frame and the arm beam, one end of the support frame is mounted on the sliding frame, and the other end is supported on the arm beam.

[0020] Through the above technical solution, the support frame is supported between the sliding frame and the pull arm beam, so that the stability of the locking hook body after locking the box body is improved.

[0021] Furthermore, the arm beam is provided with mounting holes, and a plurality of mounting holes are spaced apart on the arm beam. The sliding frame is provided with a connecting plate, and the connecting plate is provided with connecting bolts. One end of the connecting bolt passes through the connecting plate and the arm beam in sequence and is connected to the support frame.

[0022] Through the above technical solution, the sliding frame is slid along the length direction of the arm beam. When the sliding frame slides to the specified position, one end of the connecting bolt passes through the connecting plate and the corresponding mounting hole on the arm beam, and the connecting bolt passes through one end of the arm beam and is connected to the support frame, thereby improving the convenience of sliding the sliding frame on the arm beam.

[0023] In summary, the present application includes at least one of the following beneficial technical effects of the front box lock for the upper installation of the pull arm:

[0024] 1. The lock hook frame is installed on the arm beam. When the position of the lock hook frame needs to be adjusted, the connection component adjusts the position of the lock hook frame. When the box is placed on the arm hook device, the adjustment component adjusts the lock hook body to a locked state. When the box needs to be removed, the adjustment component adjusts the lock hook body to an unlocked state. By adding a set of lock hook frames located on the front side to cooperate with the original box lock, when transporting boxes with a high height or a high center of gravity or irregular shapes, the safety and stability during transportation can be improved, and potential safety hazards can be reduced;

[0025] 2. Through the coordinated use of the guide groove and the flip groove on the lock hook frame, the lock hook body can flip during the movement on the lock hook frame, thereby reducing the use space of the lock hook body;

[0026] 3. The stability of the locking hook body fixing the box body is improved by installing the locking hook frame on the sliding frame, and the supporting frame is supported on the sliding frame and the arm beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of a front box lock for mounting on a pull arm provided by this embodiment;

[0028] Figure 2 This is a schematic diagram of the sliding frame structure mainly provided by this embodiment;

[0029] Figure 3 This is an exploded schematic diagram of the sliding frame structure mainly provided by this embodiment;

[0030] Figure 4 It is a schematic diagram of the structure of the lock hook body mainly provided in this embodiment.

[0031] Reference numerals:

[0032] 1. Boom beam; 11. Mounting hole; 2. Lock hook frame; 21. Connecting shaft; 22. Guide groove; 23. Flip groove; 231. Horizontal part; 232. Flip part; 24. Support frame; 241. Support plate; 25. Connecting plate; 251. Connecting bolt; 252. Connecting nut; 3. Connecting assembly; 31. Sliding frame; 32. Sliding cavity; 4. Lock hook body; 41. Hook groove; 42. Adjusting pin; 43. Flipping pin; 5. Adjusting assembly; 51. Adjusting cylinder. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further described below in conjunction with specific embodiments.

[0034] The following is combined with Figure 1-4 This application is described in further detail.

[0035] The embodiment of the present application discloses a front box lock for mounting on a pull arm.

[0036] Reference Figure 1 A front box lock for mounting on a pulling arm comprises a pulling arm beam 1, a locking hook frame 2 is arranged on the pulling arm beam 1, a connecting assembly 3 is arranged on the locking hook frame 2, and the locking hook frame 2 is slidingly mounted on the pulling arm beam 1 through the connecting assembly 3. A locking hook body 4 and an adjusting assembly 5 are mounted on the locking hook frame 2, and the adjusting assembly 5 adjusts the locking or unlocking state of the locking hook body 4.

[0037] Two arm beams 1 are arranged at intervals, and the hook frames 2 correspond to the arm beams 1, and the hook frames 2 are installed symmetrically on the two arm beams 1. The two hook frames 2 on the arm beam 1 have the same structure and function, and only one side of the hook frame 2 is described below.

[0038] Reference Figure 4The lock hook frame 2 is flat as a whole, and two lock hook frames 2 are arranged at intervals, and the two lock hook frames 2 are arranged parallel and spaced. The lock hook body 4 is located between the two lock hook frames 2, and a hook groove 41 is formed on the lock hook body 4. When in use, the hook groove 41 of the lock hook body 4 is hooked on the box body.

[0039] Reference Figure 2-Figure 3 The adjustment assembly 5 includes an adjustment cylinder 51, which is located on one side of the hook frame 2. The two hook frames 2 are provided with a connecting shaft 21, one end of which passes through the two hook frames 2 in sequence, and one end of the adjustment cylinder 51 is rotatably mounted on the connecting shaft 21. When in use, the adjustment cylinder 51 is threadedly connected to both ends of the connecting shaft 21 through a nut, so that the stability of the adjustment cylinder 51 installed on the hook frame 2 is improved.

[0040] Reference Figure 3 The lock hook frames 2 on both sides of the lock hook body 4 are provided with guide grooves 22, and the guide grooves 22 are arranged horizontally as a whole. The lock hook body 4 is provided with an adjustment pin 42, which is rotatably mounted on the lock hook body 4, and both ends of the adjustment pin 42 pass through the guide grooves 22 on the lock hook frames 2 on both sides. One end of the adjustment pin 42 passing through the guide groove 22 is rotatably connected to one end of the adjustment cylinder 51, and the lock hook body 4 slides along the guide groove 22 through the adjustment pin 42 through the extension and contraction of the piston rod of the adjustment cylinder 51. Furthermore, when the piston rod of the adjustment cylinder 51 is extended, the lock hook body 4 is in a locked state, and when the piston rod of the adjustment cylinder 51 is retracted, the lock hook body 4 is in an unlocked state.

[0041] The two lock hook frames 2 are provided with a flip groove 23, which includes a horizontal portion 231 and a flip portion 232, and the angle between the horizontal portion 231 and the flip portion 232 is 125 degrees. The lock hook body 4 is provided with a flip pin 43, which is installed on the lock hook body 4, and both ends of the flip pin 43 pass through the flip groove 23. When the lock hook body 4 is in a locked state, the flip pin 43 on the lock hook body 4 is located at the horizontal portion 231 of the flip groove 23, and as the adjustment cylinder 51 contracts, the lock hook body 4 unlocks the box. During the unlocking process, the flip pin 43 on the lock hook body 4 flips along the flip portion 232 of the flip groove 23, and as the flip portion 232 guides the lock hook body 4, the lock hook body 4 rotates around the adjustment pin 42, so that the lock hook body 4 is stored between the two lock hook frames 2.

[0042] The connecting assembly 3 includes a sliding frame 31, a sliding cavity 32 is formed inside the sliding frame 31, and one end of the arm beam 1 passes through the sliding cavity 32 of the sliding frame 31. In addition, two locking hook bodies 4 are welded to the sliding frame 31. Therefore, the locking hook body 4 installed on the locking hook frame 2 can slide on the arm beam 1.

[0043] Furthermore, in order to improve the stability of the lock hook body 4 after locking the box, a support frame 24 is provided between the lock hook frame 2 and the arm beam 1, one end of the support frame 24 is mounted on the sliding frame 31, and the other end is provided with a support plate 241, one side of the support plate 241 in the thickness direction is welded to the support frame 24, and the other side is pressed against the arm beam 1. When in use, the lock hook frame 2 is supported by the support plate 241 and the support frame 24, so that the reaction force when the lock hook body 4 locks the box can act on the arm beam 1.

[0044] A connecting plate 25 is provided on the side of the arm girder 1 in the thickness direction away from the support plate 241, and the connecting plate 25 is connected to the hook frame 2. The arm girder 1 is provided with a mounting hole 11, and a plurality of mounting holes 11 are evenly spaced along the length direction of the arm girder 1. A connecting bolt 251 is provided on the connecting plate 25, one end of which passes through the connecting plate 25, the arm girder 1 and the support plate 241 in sequence, and a connecting nut 252 is provided on one end of the connecting bolt 251 passing through the support plate 241, and the connecting nut 252 is threadedly connected to the connecting bolt 251, and one side of the connecting nut 252 is pressed against the support plate 241.

[0045] 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 front box lock for mounting on a pull arm, comprising a pull arm beam (1), wherein two pull arm beams (1) are arranged at intervals, and characterized in that: The arm girder (1) is provided with a locking hook frame (2), and the locking hook frame (2) is provided with a connecting assembly (3), and the connecting assembly (3) is used for slidingly installing the locking hook frame (2) on the arm girder (1); A lock hook body (4) is rotatably mounted on the lock hook frame (2), and an adjustment component (5) is provided on the lock hook frame (2). The adjustment component (5) is used to control the locking and unlocking states of the lock hook body (4).

2. A front box lock for mounting on a pull arm according to claim 1, characterized in that: The adjustment assembly (5) comprises an adjustment cylinder (51) and an adjustment pin (42); the adjustment pin (42) is mounted on the lock hook body (4); one end of the adjustment cylinder (51) is rotatably mounted on the lock hook frame (2), and the other end is rotatably connected to the adjustment pin (42).

3. A front box lock for mounting on a pull arm according to claim 2, characterized in that: The lock hook frame (2) is provided with a guide groove (22), one end of the adjustment pin shaft (42) passes through the guide groove (22), and the end of the adjustment pin shaft (42) passing through the guide groove (22) is connected to the adjustment oil cylinder (51).

4. A front box lock for mounting on a pull arm according to claim 3, characterized in that: The lock hook frame (2) is provided with a flip groove (23), and the lock hook body (4) is provided with a flip pin (43), and one end of the flip pin (43) passes through the flip groove (23).

5. The front box lock for mounting on a pull arm according to claim 1, characterized in that: The connecting assembly (3) comprises a sliding frame (31), a sliding cavity (32) is formed in the sliding frame (31), the pulling arm beam (1) passes through the sliding cavity (32), and the locking hook frame (2) is installed on the sliding frame (31).

6. A front box lock for mounting on a pull arm according to claim 5, characterized in that: A support frame (24) is provided between the sliding frame (31) and the arm-pulling beam (1); one end of the support frame (24) is mounted on the sliding frame (31), and the other end is supported on the arm-pulling beam (1).

7. A front box lock for mounting on a pull arm according to claim 6, characterized in that: The arm girder (1) is provided with a mounting hole (11), and a plurality of the mounting holes (11) are spaced apart on the arm girder (1). The sliding frame (31) is provided with a connecting plate (25), and the connecting plate (25) is provided with a connecting bolt (251), and one end of the connecting bolt (251) passes through the connecting plate (25) and the arm girder (1) in sequence and is connected to the support frame (24).

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