Traction device and hook arm vehicle

Abstract

The utility model discloses a traction device of a hook arm vehicle and the hook arm vehicle, the traction device of the hook arm vehicle comprises a base fixedly installed on a hook arm vehicle chassis; one end of the first rotating part is rotationally connected with one end of the base; the second rotating piece is rotationally connected to the other end of the first rotating piece, the end of the second rotating piece is rotationally connected with a lock hook assembly used for hooking the bottom face of the dustbin, and the first rotating piece and the second rotating piece are suitable for being selectively rotationally locked; one end of the first telescopic driving part is connected to the base, the other end of the first telescopic driving part is connected to the second rotating part, and the first telescopic driving part is suitable for driving the second rotating part to rotate so as to lift or descend the dustbin. Traction mechanisms such as steel wire ropes are not needed, safety is improved, and the transfer efficiency of the whole vehicle is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering vehicles, in particular to a traction device and a hook arm vehicle. Background Art

[0002] With the popularization of garbage sorting, the application of vertical garbage stations has gradually increased. The garbage bins of vertical stations are usually placed vertically. In the existing technology, the loading and unloading of vertical bins are usually achieved by using a wire rope towed hook arm vehicle or a vertical bin transfer vehicle with a telescopic frame.

[0003] However, when loading vertical garbage bins, the wire rope-pulled hook-arm truck may experience uncontrollable traction mechanisms such as the wire rope, causing the bin to slide down at high speed, which can easily cause safety accidents. The vertical bin transfer truck with a telescopic frame has a low single-time transfer volume due to the heavy weight of the telescopic frame, affecting the transfer efficiency. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems in the prior art. To this end, the utility model provides a safe and efficient hook arm vehicle traction device.

[0005] According to the traction device of the hook arm truck in the embodiment of the present utility model, it includes: a base, which is fixedly mounted on the hook arm truck chassis; a first rotating member, one end of the first rotating member is rotatably connected to one end of the base; a second rotating member, the second rotating member is rotatably connected to the other end of the first rotating member, and the end of the second rotating member is rotatably connected to a locking hook assembly for hooking and pulling the bottom surface of the trash bin, and the first rotating member and the second rotating member are suitable for selective rotation and locking; a first telescopic driving member, one end of the first telescopic driving member is connected to the base and the other end is connected to the second rotating member, suitable for driving the second rotating member to rotate to achieve lifting or lowering of the trash bin.

[0006] According to the traction device of the hook arm truck in the embodiment of the present invention, no traction mechanism such as wire rope is required, thereby improving safety. In addition, a locking hook assembly for hooking and pulling the bottom surface of the trash bin is rotatably connected at the end of the second rotating member, and the first rotating member and the second rotating member are selectively rotated and locked, thereby optimizing the force structure of the traction device, reducing the requirements for the first telescopic drive member, and making the overall mass of the traction device lighter, thereby greatly increasing the rated loading mass of the hook arm truck, improving the transportation efficiency of the entire vehicle, and reducing the cost of the device at the same time.

[0007] In some embodiments, the traction device of the hook arm truck has four working modes: loading mode, unloading mode, unloading lifting mode, and unloading lowering mode; in the loading mode, the first telescopic drive member is suitable for retracting to push the second rotating member to move in the direction close to the base to lower the garbage bin, and the first rotating member is horizontally stationary; in the unloading mode, the first telescopic drive member is suitable for extending to push the second rotating member to move in the direction away from the base to raise the garbage bin, and the first rotating member is horizontally stationary; in the unloading lifting mode, the first telescopic drive member is suitable for extending to push the second rotating member to move in the direction away from the base, and the first rotating member and the second rotating member are rotationally locked; in the unloading lowering mode, the first telescopic drive member is suitable for retracting to push the second rotating member to move in the direction close to the base, and the first rotating member and the second rotating member remain locked.

[0008] In some embodiments, one of the first rotating member and the second rotating member is provided with a locking member, and the other is provided with a matching member. When the traction device is in the unloading lifting mode or the unloading lowering mode, the locking member is connected to the matching member to make the first rotating member and the second rotating member relatively stationary.

[0009] In some embodiments, a protrusion is provided on the second rotating member, and the protrusion is configured as the mating member. A locking driving member is provided on the first rotating member, and the locking member is provided on the locking driving member. A slot is provided on the locking member, and the locking driving member is suitable for driving the locking member to move to connect the slot and the protrusion.

[0010] In some embodiments, the locking drive member is constructed as a telescopic cylinder, and the locking member is arranged at the telescopic end of the telescopic cylinder; and / or, the locking member is constructed as a telescopic locking member, and the matching member is constructed as a limiting hole, and the telescopic locking member is suitable for being inserted into the limiting hole to limit the second rotating member.

[0011] In some embodiments, the traction device of the hook arm truck further includes: a roller, the roller is provided on the base, the roller is suitable for rolling connection with the garbage bin; wherein, the roller rotates coaxially with the first rotating member.

[0012] In some embodiments, the locking hook assembly includes: a third rotating member, which is rotatably provided on the second rotating member; a second telescopic driving member, which is rotatably provided on the second rotating member, and the telescopic end of the second telescopic driving member is connected to the third rotating member; and a hook member, which is provided at one end of the third rotating member away from the second rotating member.

[0013] In some embodiments, the locking hook assembly further includes: a movable closing member, which is movably provided on the third rotating member, and the movable closing member is suitable for moving to close the hook member.

[0014] In some embodiments, the movable closing member includes: a driving body, which is arranged on the third rotating member; a telescopic rod, which is telescopically arranged on the driving body and is suitable for stopping against the inner wall of the hook to close the hook.

[0015] In some embodiments, the second rotating member is provided with a first accommodating groove, which is suitable for accommodating the locking hook assembly; and / or the third rotating member is provided with a second accommodating groove, which is suitable for accommodating the second telescopic driving member.

[0016] The hook-arm truck according to the embodiment of the present utility model includes the above-mentioned traction device.

[0017] The hook arm truck according to the embodiment of the present invention does not require traction mechanisms such as wire ropes, which improves safety. The lock hook assembly for hooking and pulling the bottom surface of the garbage bin is rotated and connected at the end of the second rotating member, and the first rotating member and the second rotating member are selectively rotated and locked, thereby optimizing the force structure of the traction device, reducing the requirements for the first telescopic drive member, and making the overall mass of the traction device lighter, thereby greatly increasing the rated loading mass of the hook arm truck, improving the transfer efficiency of the entire vehicle, and at the same time reducing the cost of the device. By setting the first rotating member, the lifting height of the garbage bin is increased on the basis of the second rotating member, thereby making unloading more sufficient and efficient.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 The structure of the traction device in the embodiment of the utility model is shown in FIG. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the cooperation between the locking member and the matching member in the first embodiment of the present utility model;

[0022] Figure 3 This is a schematic diagram of the first rotating member in an embodiment of the present utility model;

[0023] Figure 4 The structure of the traction device in the embodiment of the utility model is shown in FIG. Figure 2 ;

[0024] Figure 5 The structure of the traction device in the embodiment of the utility model is shown in FIG. Figure 3 ;

[0025] Figure 6 This is a schematic diagram of a garbage bin placed on a hook-arm vehicle in an embodiment of the present utility model;

[0026] Figure 7 This is a schematic diagram of the cooperation between the locking member and the matching member in the second embodiment of the present utility model.

[0027] Reference numerals:

[0028] 100. Traction device; 10. Base;

[0029] 20. First rotating member; 21. Locking member; 22. Locking driving member; 23. First portion; 24. Second portion; 241. Support block;

[0030] 30. Second rotating member; 31. Lock hook assembly; 311. Third rotating member; 312. Second telescopic driving member; 313. Hook member; 314. Movable closing member; 32. Matching member;

[0031] 40. First telescopic drive member; 50. Roller; 200. Trash bin; 201. Unloading door; 300. Hook-arm vehicle. DETAILED DESCRIPTION

[0032] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0034] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0035] Unless otherwise specified, the front-to-back direction in this application is the longitudinal direction of the vehicle, that is, the X direction; the left-right direction is the lateral direction of the vehicle, that is, the Y direction; and the up-down direction is the vertical direction of the vehicle, that is, the Z direction.

[0036] Reference below Figures 1-6 A traction device 100 of a hook-arm truck according to an embodiment of the present invention is described.

[0037] Reference Figures 1 to 4 According to an embodiment of the present invention, a traction device 100 of a hook-arm truck includes: a base 10, a first rotating member 20, a second rotating member 30 and a first telescopic driving member 40.

[0038] The base 10 is fixedly mounted to the chassis of the hook-lift truck. One end of the first rotating member 20 is rotatably connected to one end of the base 10. A second rotating member 30 is rotatably connected to the other end of the first rotating member 20. A locking hook assembly 31 is rotatably connected to the end of the second rotating member 30, which is used to hook and pull the bottom surface of the waste bin 200. The first rotating member 20 and the second rotating member 30 are adapted to selectively rotate and lock. A first telescopic drive member 40 is connected to the base 10 at one end and to the second rotating member 30 at the other end, adapted to drive the second rotating member 30 to rotate, thereby lifting or lowering the waste bin 200.

[0039] Compared with the solution of using steel wire rope in the related art, the embodiment of the utility model does not need to use steel wire rope, which improves safety.

[0040] According to the traction device 100 of the hook arm truck in the embodiment of the present invention, no traction mechanism such as a wire rope is required, thereby improving safety. In addition, by rotating the lock hook assembly 31 for hooking and pulling the bottom surface of the garbage bin 200 at the end of the second rotating member 20, and selectively rotating and locking the first rotating member 20 and the second rotating member 30, the force structure of the traction device 100 is optimized, and the requirements for the first telescopic drive member 40 are reduced. The overall mass of the traction device 100 is lighter, thereby greatly increasing the rated loading mass of the hook arm truck 300, improving the transportation efficiency of the entire vehicle, and reducing the cost of the device at the same time.

[0041] In some embodiments, the traction device 100 of the hook-arm truck has four working modes: loading mode, unloading mode, unloading lifting mode, and unloading lowering mode.

[0042] In the loading mode, the first telescopic driving member 40 is adapted to retract to push the second rotating member 30 to move toward the base 10 so that the trash bin 200 descends, and the first rotating member 20 remains horizontally.

[0043] In the unloading mode, the first telescopic driving member 40 is adapted to extend to push the second rotating member 30 to move away from the base 10 so that the trash bin 200 is raised, and the first rotating member 20 is horizontally stationary.

[0044] In the unloading and lifting mode, the first telescopic driving member 40 is adapted to extend to push the second rotating member 30 to move in a direction away from the base 10 , and the first rotating member 20 and the second rotating member 30 are rotationally locked.

[0045] In the unloading and descending mode, the first telescopic driving member 40 is adapted to retract to push the second rotating member 30 to move toward the direction close to the base 10 , and the first rotating member 20 and the second rotating member 30 remain locked.

[0046] The traction device 100 of the hook arm truck has four modes: loading mode, unloading mode, unloading lifting mode, and unloading lowering mode. Figure 1 In the loading mode, the hook assembly 31 on the second rotating member 30 hooks and pulls the trash can 200, the first telescopic driving member 40 retracts, and pulls the second rotating member 30, so that the trash can 200 is transferred to the chassis of the hook arm vehicle; Figure 5 In the unloading mode, the hook assembly 31 on the second rotating member 30 hooks the trash can 200, and the first telescopic driving member 40 extends to push the second rotating member 30, so that the trash can 200 is transferred; Figure 4In the unloading lifting mode and the unloading lowering mode, the first rotating member 20 and the second rotating member 30 are locked in rotation, the first telescopic driving member 40 extends, pushing the first rotating member 20 and the second rotating member 30 away from the base 10, the garbage bin 200 on the chassis of the hook arm truck rotates, and the unloading door 201 of the garbage bin 200 opens, and the garbage bin 200 in the air dumps the garbage.

[0047] The above four modes are adapted to different needs and expand the scope of application of the hook arm truck 300.

[0048] In the embodiment of the present invention, in the unloading lifting mode and the unloading lowering mode, the first rotating member 20 and the second rotating member 30 are rotationally locked, and the first rotating member 20 is added on the basis of the second rotating member 30. Compared with the solution of using only the second rotating member 30, the lifting height is increased, so that the garbage bin 200 is at a higher position, making the unloading more complete.

[0049] At the same time, in the related art, the second rotating member rotates relative to the first rotating member, and the distance between the force application point of the first telescopic drive member and the rotation axis of the second rotating member is small. In the embodiment of the utility model, one end of the first telescopic drive member 40 is connected to the second rotating member 30. In the unloading lifting mode and the unloading lowering mode, the first rotating member 20 and the second rotating member 30 are locked in rotation, and the distance between the force application point and the rotation axis is increased, so that the first rotating member 20 and the second rotating member 30 are pushed to rotate more conveniently, the force structure of the traction device 100 is optimized, the requirements for the first telescopic drive member 40 are reduced, and the overall mass of the traction device 100 is lighter, thereby greatly increasing the rated loading mass of the hook arm truck 300.

[0050] Specifically, the trash bin 200 has a feed door and a discharge door 201 , with one end being the feed door and the other end being the discharge door 201 .

[0051] According to the traction device 100 of the embodiment of the present invention, no traction mechanism such as a wire rope is required, which improves safety. By providing the first rotating member 20, the lifting height of the garbage bin 200 is increased on the basis of the second rotating member 30, so that the material can be fully unloaded. At the same time, the distance between the force application point and the rotating shaft is increased, so that the first rotating member 20 and the second rotating member 30 are pushed to rotate more conveniently, reducing the requirements for the first telescopic drive member 40.

[0052] In some specific embodiments, the first telescopic drive member 40 is a telescopic oil cylinder, which provides greater power and improves reliability. Of course, the first telescopic drive member 40 can also be a telescopic air cylinder or other, which will not be described here.

[0053] Reference Figure 2In some embodiments, a locking member 21 is provided on one of the first rotating member 20 and the second rotating member 30, and a matching member 32 is provided on the other. When the traction device 100 is in the unloading lifting mode or the unloading lowering mode, the locking member 21 is connected to the matching member 32 to make the first rotating member 20 and the second rotating member 30 relatively stationary.

[0054] The locking member 21 cooperates with the matching member 32 to lock the first rotating member 20 and the second rotating member 30 in rotation. The locking member 21 and the matching member 32 can also be disconnected to allow the first rotating member 20 and the second rotating member 30 to rotate relative to each other.

[0055] In the above solution, the selective rotation locking of the first rotating member 20 and the second rotating member 30 is achieved through the cooperation between the locking member 21 and the matching member 32, thereby improving reliability.

[0056] Specifically, the locking member 21 may be provided on the first rotating member 20 and the matching member 32 may be provided on the second rotating member 30 , or the matching member 32 may be provided on the first rotating member 20 and the locking member 21 may be provided on the second rotating member 30 .

[0057] Reference Figure 2 In some embodiments, a protrusion is provided on the second rotating member 30, and the protrusion is constructed as a mating member 32. A locking driving member 22 is provided on the first rotating member 20, and a locking member 21 is provided on the locking driving member 22. A card slot is provided on the locking member 21, and the locking driving member 22 is suitable for driving the locking member 21 to move to connect the card slot and the protrusion.

[0058] Among them, a locking drive member 22 is provided on the first rotating member 20, and the locking member 21 is arranged on the locking drive member 22, and a card slot is provided on the locking member 21. The locking drive member 22 drives the locking member 21 to move, so that the card slot engages the protrusion, or the card slot is disconnected from the protrusion.

[0059] In the above solution, the cooperation between the protrusion and the slot results in a simple structure, high stability and improved reliability.

[0060] Specifically, the locking drive member 22 can be a telescopic oil cylinder, a telescopic motor or a telescopic air pump, or a rotary motor, etc.

[0061] Reference Figure 7 In some specific embodiments, the locking member 21 is configured as a telescopic locking member, and the matching member 32 is configured as a limiting hole. The telescopic locking member is suitable for being inserted into the limiting hole to limit the second rotating member 30.

[0062] In the above solution, the second rotating member is restricted by the cooperation between the telescopic locking member and the restriction hole, the overall structure is simple, and the structure is optimized.

[0063] In some specific embodiments, the locking drive member 22 is configured as a telescopic oil cylinder, and the locking member 21 is provided at the telescopic end of the telescopic oil cylinder.

[0064] The telescopic end of the telescopic oil cylinder is extended and retracted, and the locking member 21 is provided on the telescopic end and retracts and retracts along with the telescopic end.

[0065] In the above solution, by constructing the locking drive member 22 as a telescopic oil cylinder, the characteristics of the telescopic oil cylinder are used to drive the locking member 21 to extend and retract, thereby improving the power, increasing the stability, and making the device more reliable.

[0066] Reference Figure 3 In some embodiments, the first rotating member 20 includes a first portion 23 and a second portion 24 .

[0067] The first portion 23 is rotatably mounted on the base 10. One end of the second portion 24 is connected to the first portion 23, and the other end is connected to the second rotating member 30. An angle is formed between the first portion 23 and the second portion 24.

[0068] The first portion 23 is connected to the base 10 , and the second portion 24 is connected to the second rotating member 30 . There is a certain angle between the first portion 23 and the second portion 24 .

[0069] In the above solution, by setting the angle between the first part 23 and the second part 24 and utilizing the relative relationship between the first part 23 and the second part 24, the first rotating member 20 is more convenient to rotate and the rotation angle of the first rotating member 20 is larger.

[0070] Specifically, the included angle between the first portion 23 and the second portion 24 is an obtuse angle, which facilitates the placement of the second portion 24 .

[0071] Reference Figure 4 In some specific embodiments, a support block 241 is provided on the base 10 , and the support block 241 is suitable for supporting the second part 24 .

[0072] Reference Figure 1 In some embodiments, the traction device 100 further includes a roller 50 , which is disposed on the base 10 and is adapted to be rolled and connected to the trash bin 200 . The roller 50 rotates coaxially with the first rotating member 20 .

[0073] The roller 50 is installed on the base 10 , and the roller 50 is suitable for rolling connection with the trash bin 200 . When the trash bin 200 moves, the roller 50 supports the trash bin 200 .

[0074] In the above scheme, by setting the roller 50 and the trash can 200 in rolling connection, the trash can 200 is prevented from wearing the traction device 100, thereby increasing the service life. In addition, the roller 50 is set on the base 10, and the roller 50 rotates coaxially with the first rotating member 20, which increases the stability of the roller 50 and reduces the probability of deformation of the roller 50.

[0075] Reference Figure 1 In some embodiments, the locking hook assembly 31 includes: a third rotating member 311 , a second telescopic driving member 312 , and a hook member 313 .

[0076] The third rotating member 311 is rotatably mounted on the second rotating member 30. The second telescopic driving member 312 is rotatably mounted on the second rotating member 30, with the telescopic end of the second telescopic driving member 312 connected to the third rotating member 311. The hook member 313 is mounted on an end of the third rotating member 311 away from the second rotating member 30.

[0077] More specifically, the locking hook assembly 31 further includes a movable closing member 314 , which is movably disposed on the third rotating member 311 and adapted to move to close the hook member 313 .

[0078] Among them, the third rotating member 311 is rotatably arranged on the second rotating member 30, the hook 313 is arranged at one end of the third rotating member 311, the second telescopic driving member 312 is connected to the third rotating member 311 to drive the third rotating member 311 to rotate, so as to facilitate the hooking of the trash can 200, and the movable closing member 314 is arranged on the third rotating member 311. The movable closing member 314 extends to close the hook 313 to prevent the trash can 200 from detaching. The movable closing member 314 retracts to open the hook 313, so that the trash can 200 can detach from the hook 313.

[0079] In the above solution, the third rotating member 311 and the second telescopic driving member 312 cooperate to facilitate connection of the trash bin 200, and a movable closing member 314 is provided for closing the hook member 313, thereby preventing the trash bin 200 from detaching and improving safety.

[0080] In some specific embodiments, the movable sealing member 314 includes a driving body and a telescopic rod.

[0081] The driving body is disposed on the third rotating member 311. The telescopic rod is telescopically disposed on the driving body and is adapted to abut against the inner wall of the hook member 313 to close the hook member 313.

[0082] In the above embodiment, the telescopic rod cooperates with the driving body to extend or retract the telescopic rod, resulting in a simple structure and convenient operation. Specifically, the hook member 313 is an arc-shaped member with an opening, and the movable closing member 314 can be a telescopic column. The trash bin 200 is provided with a crossbeam, and the telescopic column extends to close the opening or retracts to open the opening. The movable closing member 314 can also be a rotating column. Of course, the movable closing member 314 can also have other motion forms, which will not be detailed here.

[0083] In some specific embodiments, the second telescopic driving member 312 is a swing cylinder. Of course, the second telescopic driving member 312 can also be other, such as a telescopic cylinder, which will not be described here.

[0084] Reference Figure 1 、 Figure 4 and Figure 6 In some embodiments, the second rotating member 30 is provided with a first receiving groove, and the first receiving groove is suitable for receiving the locking hook assembly 31.

[0085] The first receiving groove is provided on the second rotating member 30 , and the first receiving groove is used to receive the locking hook assembly 31 , and the locking hook assembly 31 can be placed in the first receiving groove.

[0086] In the above solution, by providing the first receiving groove on the second rotating member 30 and utilizing the first receiving groove to receive the locking hook assembly 31 , the stored traction device 100 is smaller and more compact, and the locking hook assembly 31 is hidden.

[0087] Reference Figure 1 、 Figure 4 and Figure 6 In some embodiments, the third rotating member 311 is provided with a second accommodating groove, and the second accommodating groove is suitable for accommodating the second telescopic driving member 312.

[0088] The second accommodating groove is provided on the third rotating member 311 , and the second accommodating groove is used to accommodate the second telescopic driving member 312 . The second telescopic driving member 312 can be placed in the second accommodating groove.

[0089] In the above solution, by opening a second accommodating groove on the third rotating member 311 and utilizing the second accommodating groove to accommodate the second telescopic driving member 312 , the stored traction device 100 is smaller and more compact, and the second telescopic driving member 312 is hidden.

[0090] In some embodiments, a bin holding device is provided on the second rotating member 30 to hold the trash bin 200 tightly and limit the up and down movement of the bin.

[0091] The following describes in detail the working process of the traction device 100 in the embodiment of the present utility model:

[0092] Reference Figure 1 、 Figure 5 and Figure 6 During the box pulling operation, the hook arm vehicle 300 moves backwards and approaches the box body. The roller 50 contacts the bottom track of the waste bin 200. The first telescopic drive member 40 is raised to a certain angle, and the second rotating member 30 is in the raised state. The second telescopic drive member 312 extends, swinging the third rotating member 311 backward and upward. The hook member 313 on the third rotating member 311 hooks onto the crossbeam at the bottom of the waste bin 200. The piston rod of the movable closing member 314 extends, and the movable closing member 314 locks the crossbeam of the waste bin 200, completing the preparation for pulling the box. Among them, the locking drive member 22 retracts the piston rod, the locking member 21 opens, and disengages the mating member 32. The first rotating member 20 and the second rotating member 30 are no longer linked, and the second rotating member 30 swings independently to perform the box pulling and placing operation. The first rotating member 20 is supported on the base 10. The rear of the base frame has a rotating shaft for the first rotating member 20, which connects the rear end of the base 10 and the rear end of the first rotating member 20. The base frame has a support block 241. When the first rotating member 20 is flat, the front end of the first rotating member 20 is supported on the support block 241 of the base frame. As the trash bin is pulled further, the first telescopic drive member 40 retracts, the hook arm vehicle 300 moves forward, and the bottom track of the trash bin 200 clings to the roller 50 and slowly tilts. As the first telescopic drive member 40 further retracts, the second rotating member 30 rotates forward, and the third rotating member 311 swings rearward and downward, causing the bin to lift off the ground and be pulled onto the vehicle until the trash bin 200 is placed horizontally on the base 10.

[0093] After the box is laid flat, the first rotating member 20 and the base 10 are in a flat state, and a first receiving groove is provided in front of the second rotating member 30 , in which the third rotating member 311 and the second telescopic driving member 312 can be arranged.

[0094] Furthermore, the third rotating member 311 has a second accommodating groove, and the second telescopic driving member 312 can be arranged in the second accommodating groove.

[0095] Unloading is the reverse process of pulling.

[0096] The piston rod of the first telescopic drive member 40 extends, lifting the waste bin 200. The hook ring of the third rotating member 311 hooks onto the bottom of the waste bin 200, causing the waste bin 200 to slide downward along the rollers 50 and land on the ground. The hook arm truck 300 is in neutral and moves backward. The third rotating member 311 swings upward and backward, slowly placing the waste bin 200 upright. After the bin is upright, the piston rod of the movable closing member 314 retracts, disengaging from the bin's crossbar.

[0097] Reference Figure 4During the unloading operation, the unloading door 201 of the garbage bin 200 is opened, the hook 313 of the third rotating member 311 hooks the bottom of the garbage bin 200, the piston rod of the movable closing member 314 locks the crossbeam at the bottom of the garbage bin 200, the locking driving member 22 extends the piston rod, the locking member 21 is closed, and the matching member 32 is buckled, the first rotating member 20 and the second rotating member 30 are locked, so that the second rotating member 30 drives the first rotating member 20 to lift together, and the unloading and garbage dumping action is performed. The first rotating member 20 and the second rotating member 30 are connected as a whole by the locking member 21 and the matching member 32. Under the lifting of the first telescopic driving member 40, the second rotating member 30 drives the first rotating member 20 to lift, the garbage bin 200 is slowly lifted, and the garbage in the garbage bin 200 is dumped out. After the box body is dumped, the piston rod of the first telescopic driving member 40 is retracted, and then the garbage bin 200 is laid flat, and the unloading door 201 of the garbage bin 200 is locked to complete the unloading action.

[0098] The front end of the trash bin 200 is a feeding door, and the rear end is a discharge door 201. A device (beam, etc.) locked by the hook member 313 of the third rotating member 311 is provided at the bottom of the trash bin 200.

[0099] This solution is safe and reliable. During the hauling operation, the third rotating member 311 hooks onto the bottom (lower plane) of the trash bin 200. As the upper part swings forward, the trash bin 200 slowly tilts. The first telescopic drive member 40 is a lifting cylinder, and the second telescopic drive member 312 is a swinging cylinder. The entire process is controlled by the lifting and swinging cylinders, and the hydraulic lines are controlled by hydraulic valves, ensuring that there are no safety accidents during the hauling process. Conventional wire rope hauling mechanisms, however, can cause problems if the drive motor fails, causing the bin to slide rapidly downward and hit the ground.

[0100] The superstructure design of this solution is light in weight, the curb weight of the vehicle is light, the rated load capacity of the vehicle is increased (it can carry more cargo), and it can create value for customers (reduced operating costs).

[0101] This solution has low maintenance cost. The original wire rope traction device 100 needs to replace its wire rope every six months, which costs several thousand yuan per vehicle per year. However, this solution does not require such maintenance cost.

[0102] The hook-arm truck 300 according to the embodiment of the present invention includes the above-mentioned traction device 100 .

[0103] According to the hook arm truck 300 of the embodiment of the present invention, no traction mechanism such as wire rope is required, which improves safety. By setting the first rotating part 20, the lifting height of the garbage bin 200 is increased on the basis of the second rotating part 30, so that the material can be fully unloaded. At the same time, the distance between the force application point and the rotating shaft is increased, so that the first rotating part 20 and the second rotating part 30 are pushed to rotate more conveniently, reducing the requirements for the first telescopic drive part 40.

[0104] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0105] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A traction device for a hook-arm vehicle, characterized in that: include: A base (10), wherein the base (10) is fixedly mounted on the chassis of the hook arm vehicle; a first rotating member (20), one end of the first rotating member (20) being rotatably connected to one end of the base (10); a second rotating member (30), the second rotating member (30) being rotatably connected to the other end of the first rotating member (20), the end of the second rotating member (30) being rotatably connected to a locking hook assembly (31) for hooking and pulling the bottom surface of the trash bin (200), the first rotating member (20) and the second rotating member (30) being adapted to selectively rotate and lock; A first telescopic driving member (40), one end of which is connected to the base (10) and the other end of which is connected to the second rotating member (30), is suitable for driving the second rotating member (30) to rotate so as to achieve lifting or lowering of the trash bin (200).

2. The traction device of the hook arm vehicle according to claim 1, characterized in that: The traction device (100) has four working modes: loading mode, unloading mode, unloading lifting mode, and unloading descending mode; In the box loading mode, the first telescopic driving member (40) is adapted to retract to push the second rotating member (30) to move toward the base (10) to lower the trash bin (200), and the first rotating member (20) is horizontally stationary; In the unloading mode, the first telescopic driving member (40) is adapted to extend to push the second rotating member (30) to move in a direction away from the base (10) so as to raise the trash bin (200), and the first rotating member (20) is horizontally stationary; In the unloading and lifting mode, the first telescopic driving member (40) is adapted to extend to push the second rotating member (30) to move in a direction away from the base (10), and the first rotating member (20) and the second rotating member (30) are rotationally locked; In the unloading and descending mode, the first telescopic driving member (40) is adapted to retract to push the second rotating member (30) to move toward the base (10), and the first rotating member (20) and the second rotating member (30) remain locked.

3. The traction device of the hook arm vehicle according to claim 2, characterized in that: One of the first rotating member (20) and the second rotating member (30) is provided with a locking member (21), and the other is provided with a matching member (32). When the traction device (100) is in the unloading lifting mode or the unloading lowering mode, the locking member (21) is connected to the matching member (32) so that the first rotating member (20) and the second rotating member (30) are relatively stationary.

4. The traction device of the hook arm vehicle according to claim 3, characterized in that: The second rotating member (30) is provided with a protrusion, and the protrusion is configured as the matching member (32). The first rotating member (20) is provided with a locking driving member (22). The locking member (21) is provided on the locking driving member (22). The locking member (21) is provided with a card slot. The locking driving member (22) is suitable for driving the locking member (21) to move so as to connect the card slot and the protrusion.

5. The traction device of the hook arm vehicle according to claim 4, characterized in that: The locking drive member (22) is constructed as a telescopic oil cylinder, and the locking member (21) is provided at the telescopic end of the telescopic oil cylinder; And / or, the locking member (21) is configured as a telescopic locking member, the matching member (32) is configured as a limiting hole, and the telescopic locking member is suitable for being inserted into the limiting hole to limit the second rotating member (30).

6. The traction device of the hook arm truck according to claim 1, characterized in that: Also includes: A roller (50), the roller (50) being provided on the base (10), the roller (50) being suitable for rolling connection with the trash bin (200); wherein, The roller (50) rotates coaxially with the first rotating member (20).

7. The traction device of the hook arm truck according to claim 1, characterized in that: The locking hook assembly (31) comprises: a third rotating member (311), the third rotating member (311) being rotatably disposed on the second rotating member (30); a second telescopic driving member (312), the second telescopic driving member (312) being rotatably disposed on the second rotating member (30), and a telescopic end of the second telescopic driving member (312) being connected to the third rotating member (311); A hook member (313) is provided at an end of the third rotating member (311) away from the second rotating member (30).

8. The traction device of the hook-arm truck according to claim 7, characterized in that: The locking hook assembly (31) further includes a movable closing member (314), which is movably disposed on the third rotating member (311), and is adapted to move to close the hook member (313).

9. The traction device of the hook-arm truck according to claim 8, characterized in that: The movable closure member (314) comprises: A driving body, the driving body being arranged on the third rotating member (311); A telescopic rod is telescopically arranged on the driving body and is suitable for abutting against the inner wall of the hook (313) to close the hook (313).

10. The traction device of the hook-arm truck according to claim 7, characterized in that: The second rotating member (30) is provided with a first accommodating groove, and the first accommodating groove is suitable for accommodating the locking hook assembly (31); And / or, the third rotating member (311) is provided with a second accommodating groove, and the second accommodating groove is suitable for accommodating the second telescopic driving member (312).

11. A hook-arm vehicle, characterized in that: The traction device (100) comprises the traction device (100) according to any one of claims 1 to 10.

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