Pulling device for agricultural machinery

Abstract

The utility model relates to the technical field of agricultural machinery maintenance, in particular to a pulling device for agricultural machinery, which comprises a mounting block, the side wall of the mounting block is provided with two symmetrically arranged mounting grooves, and the inner wall of the mounting groove on the right side is fixedly connected with a fixed handle. A connecting rod is fixedly connected to the inner wall of the left mounting groove, a movable handle is rotatably connected to the surface of the connecting rod, a mounting hole is formed in the upper surface of the mounting block, a circular groove is formed in the lower surface of the mounting block, and a hollow groove is formed in the surface of the movable handle; two symmetrically-arranged threaded columns are fixedly connected to the two sides of the mounting block, and by arranging the threaded columns, the first threaded pipe, the second threaded pipe, the elbow, the rotary switch and the adjusting rod, in the using process, the rotary switch is rotated to drive the adjusting rod to rotate, and the height of the extraction tool can be adjusted under the interaction of the adjusting rod and the fixing rod.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery maintenance, in particular to a lifting device for agricultural machinery. Background Art

[0002] Agricultural machinery maintenance is a general term for the maintenance and repair of agricultural machinery, including major overhauls and minor repairs of agricultural machinery. Agricultural machinery maintenance involves technical troubleshooting of faulty agricultural machinery, finding out the cause of the fault, and taking corresponding measures to troubleshoot the fault and restore it to a certain performance and safety standard. Specifically, agricultural machinery maintenance includes cleaning operations, inspection operations, tightening operations, lubrication operations and supply operations, etc. In addition, agricultural machinery maintenance also involves major overhauls and minor repairs of agricultural machinery. Major overhaul of agricultural machinery refers to restoring the technical condition and life of agricultural machinery by repairing or replacing any parts of agricultural machinery, while minor repairs of agricultural machinery refer to ensuring or restoring the working ability of agricultural machinery by replacing or repairing individual parts. Among them, the pulling device used for agricultural machinery is a commonly used agricultural machinery repair tool. Its main function is to repair dents and bruises on the body of the vehicle. By pulling the metal plate in the dent back into place, the body of the vehicle is restored to its original shape.

[0003] In the prior art, the lifting device for agricultural machinery is usually composed of a pull rod, a hook, a nut, a suction cup, etc. The lifting device currently used for agricultural machinery has no buffering measures when the base of the lifter contacts the surface of the vehicle body during use, which easily causes scratches on the surface of the vehicle body. In addition, the height of the lifter is not convenient to adjust, and the suction cup cannot be easily separated from the place where it is sucked after being sucked onto the surface of the vehicle body, which brings inconvenience to work. At the same time, the damage of agricultural machinery often comes from collisions with hard rocks on the ridges of fields, collisions with the edges of fields and roadsides, and scratches from tree branches, all of which are relatively lower than 80 cm, resulting in a small operating space and a high requirement for the height of the lifter. To this end, we propose a lifting device for agricultural machinery to solve the above problems. Utility Model Content

[0004] The purpose of the present utility model is to provide a lifting device for agricultural machinery to solve the problems raised in the above background technology.

[0005] The technical solution of the utility model is: a lifting device for agricultural machinery, comprising a mounting block, wherein the side wall of the mounting block is provided with two symmetrically arranged mounting grooves, the inner wall of the mounting groove on the right side is fixedly connected with a fixed handle, the inner wall of the mounting groove on the left side is fixedly connected with a connecting rod, the surface of the connecting rod is rotatably connected with a movable handle, the upper surface of the mounting block is provided with a mounting hole, the lower surface of the mounting block is provided with a circular groove, the surface of the movable handle is provided with a hollow groove, two symmetrically arranged threaded columns are fixedly connected on both sides of the mounting block, the surface of the threaded column is threadedly connected with a first threaded tube, the inner wall of the first threaded tube is threadedly connected with an elbow, and the surface of the elbow is threadedly connected with a second threaded tube. The cam is fixedly provided with a screw bolt, and the cam is fixedly provided with a screw bolt, and the cam is fixedly provided with a screw bolt, and the cam is fixedly provided with a screw bolt.

[0006] Preferably, the surfaces of the fixed handle and the movable handle are provided with anti-slip threads.

[0007] Preferably, a thread groove is formed on the inner wall surface of the hollow groove, and the thread groove is threadedly connected to the adjusting rod.

[0008] Preferably, the bottom surface of the base is made of rubber material, and the size of the rubber material matches the size of the bottom surface of the base.

[0009] Preferably, the diameter of the spring is smaller than the diameter of the adjusting rod, and the diameter of the spring is larger than the diameter of the limiting column.

[0010] Preferably, the top of the suction cup is made of metal, and the rest is made of rubber.

[0011] The present invention provides an improved lifting device for agricultural machinery, which has the following improvements and advantages compared with the prior art:

[0012] First, the utility model is provided with a threaded column, a first threaded tube, a second threaded tube, an elbow, a rotary switch and an adjusting rod. When in use, the rotary switch is rotated to drive the adjusting rod to rotate. The height of the puller can be adjusted under the interaction of the adjusting rod and the fixed rod, so that the suction cup of the puller can be firmly adsorbed on the depression of the vehicle body surface, thereby being able to repair vehicle body surfaces with different degrees of depression.

[0013] Second: The utility model provides a limit column, a round hole, a sliding rod, a round ring, a spring, a sealing gasket and a metal sheet. When the puller is in use, it can repair the depression. The suction cup is firmly adsorbed on the surface of the car body. Pressing the button downward causes the sliding rod to move downward, and the sealing ring at the lower end of the sliding rod moves downward. At this time, the gas inside the suction cup is released, causing the suction cup adsorbed on the surface of the car body to fall off automatically. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0015] Figure 1 This is a front view structural diagram of the present utility model;

[0016] Figure 2 This is a schematic diagram of the mounting hole structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the sliding rod structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the spring structure of the utility model;

[0019] Figure 5 This is a schematic diagram of the limit column structure of the utility model.

[0020] Description of reference numerals:

[0021] 1. Mounting block; 2. Mounting slot; 3. Fixed handle; 4. Connecting rod; 5. Movable handle; 6. Mounting hole; 7. Circular slot; 8. Hollow slot; 9. Threaded column; 10. First threaded tube; 11. Elbow; 12. Second threaded tube; 13. Bracket; 14. Base; 15. Fixed rod; 16. Adjustment rod; 17. Rotary switch; 18. Limiting column; 19. Suction cup; 20. Circular hole; 21. Sliding rod; 22. Button; 23. Ring; 24. Spring; 25. Sealing gasket; 26. Metal sheet. DETAILED DESCRIPTION

[0022] The following is a detailed description of the present invention, clearly and completely describing the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] The present invention provides an improved lifting device for agricultural machinery. The technical solution of the present invention is:

[0024] like Figure 1 - Figure 5 As shown, a lifting device for agricultural machinery includes a mounting block 1, the side wall of the mounting block 1 is provided with two symmetrically arranged mounting grooves 2, the inner wall of the right mounting groove 2 is fixedly connected with a fixed handle 3, the inner wall of the left mounting groove 2 is fixedly connected with a connecting rod 4, the surface of the connecting rod 4 is rotatably connected with a movable handle 5, the upper surface of the mounting block 1 is provided with a mounting hole 6, the lower surface of the mounting block 1 is provided with a circular groove 7, the surface of the movable handle 5 is provided with a hollow groove 8, two sides of the mounting block 1 are fixedly connected with two symmetrically arranged threaded columns 9, the surface of the threaded column 9 is threadedly connected with a first threaded tube 10, the inner wall of the first threaded tube 10 is threadedly connected with an elbow 11, the surface of the elbow 11 is threadedly connected with a second threaded tube 12, and the inner wall of the second threaded tube 12 is threadedly connected. There is a bracket 13, and the end of the bracket 13 away from the second threaded tube 12 is fixedly connected to the base 14, the inner wall of the mounting hole 6 is slidably connected to the fixing rod 15, the inner wall of the fixing rod 15 is fixedly connected to the adjusting rod 16, the upper end of the adjusting rod 16 is fixedly connected to the rotary switch 17, the inner wall of the adjusting rod 16 is fixedly connected to the limiting column 18, the lower end of the adjusting rod 16 is fixedly connected to the suction cup 19, the upper surface of the suction cup 19 is provided with a circular hole 20, the inner wall of the circular hole 20 is slidably connected to the sliding rod 21, the upper end of the sliding rod 21 is fixedly connected to the button 22, the surface of the sliding rod 21 is fixedly connected to the ring 23, the lower surface of the ring 23 is fixedly connected to the spring 24, the lower end of the sliding rod 21 is fixedly connected to the sealing gasket 25, and the lower surface of the sealing gasket 25 is fixedly connected to the metal sheet 26.

[0025] Furthermore, the surfaces of the fixed handle 3 and the movable handle 5 are provided with anti-skid threads, so when the fixed handle 3 and the movable handle 5 are held by the palm of the hand during use, they will not slip when squeezed.

[0026] Furthermore, a threaded groove is formed on the inner wall of the hollow groove 8 , and the threaded groove is threadedly connected to the adjustment rod 16 . When the rotary switch 17 is turned, the adjustment rod 16 is driven to rotate, thereby adjusting the height of the suction cup 19 .

[0027] Furthermore, the bottom surface of the base 14 is made of rubber material to prevent the base 14 from scratching the surface of the agricultural machinery when it contacts the surface of the agricultural machinery, and the size of the rubber material is consistent with the size of the bottom surface of the base 14. When in use, it can prevent the base 14 from contacting the surface of the vehicle body and causing scratches, thereby playing a buffering role.

[0028] Furthermore, the diameter of the spring 24 is smaller than the diameter of the adjusting rod 16 , and the diameter of the spring 24 is larger than the diameter of the limiting column 18 . When the sliding rod 21 moves downward, the limiting column 18 can prevent the spring 24 from sliding downward.

[0029] Furthermore, the top of the suction cup 19 is made of metal, and the rest is made of rubber. When the suction cup 19 is squeezed, the metal is not easily deformed by force, while the rest of the rubber is deformed by force and can smoothly discharge the internal air.

[0030] Working principle: When in use, first fit the base 14 to the recessed part of the vehicle to be repaired. By setting the rubber pad at the bottom of the base 14, a buffering effect can be exerted on the contact between the base 14 and the surface of the vehicle body to prevent the base 14 from leaving scratches on the surface of the vehicle body during use. By turning the rotary switch 17, the rotary switch 17 drives the adjusting rod 16 to rotate, thereby adjusting the height of the extractor so that the suction cup 19 can be adsorbed on the vehicle body surface with different degrees of recess. When pressing the movable handle 5, the movable handle 5 will rotate with the connecting rod 4 as the center, and then the movable handle 5 will move in an arc. At this time, the fixed rod 15 and the adjusting rod 16 will also move in an arc. Because the fixed rod 15 and the adjusting rod 16 are restricted by the mounting hole 6 and the circular groove 7, the movable handle 5 cannot move in an arc. After the recess is repaired, press the button 22, and the button 22 drives the sliding rod 21 to move downward, so that the sealing gasket 25 is separated from the top of the suction cup 19. At this time, the air pressure inside and outside the suction cup 19 is equal, and the suction cup 19 falls off from the vehicle body surface, completing the work.

[0031] During the operation of the utility model, the installation height can be relatively low, and then the technical purpose of reducing the installation strength of the operator can be achieved through height adjustment, which is more flexible to use and has strong pertinence, effectively solving the problem of damage on low positions and low horizontal surfaces.

[0032] The above description is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A lifting device for agricultural machinery, comprising a mounting block (1), characterized in that: The side wall of the mounting block (1) is provided with two symmetrically arranged mounting grooves (2), the inner wall of the mounting groove (2) on the right side is fixedly connected with a fixed handle (3), the inner wall of the mounting groove (2) on the left side is fixedly connected with a connecting rod (4), the surface of the connecting rod (4) is rotatably connected with a movable handle (5), the upper surface of the mounting block (1) is provided with a mounting hole (6), the lower surface of the mounting block (1) is provided with a circular groove (7), the surface of the movable handle (5) is provided with a hollow groove (8), two symmetrically arranged threaded columns (9) are fixedly connected on both sides of the mounting block (1), the surface of the threaded column (9) is threadedly connected with a first threaded tube (10), the inner wall of the first threaded tube (10) is threadedly connected with an elbow (11), the surface of the elbow (11) is threadedly connected with a second threaded tube (12), the inner wall of the second threaded tube (12) is threadedly connected with a bracket (13), and the bracket (13) is away from One end of the second threaded tube (12) is fixedly connected to a base (14), the inner wall of the mounting hole (6) is slidably connected to a fixing rod (15), the inner wall of the fixing rod (15) is fixedly connected to an adjusting rod (16), the upper end of the adjusting rod (16) is fixedly connected to a rotary switch (17), the inner wall of the adjusting rod (16) is fixedly connected to a limiting column (18), the lower end of the adjusting rod (16) is fixedly connected to a suction cup (19), a circular hole (20) is opened on the upper surface of the suction cup (19), the inner wall of the circular hole (20) is slidably connected to a sliding rod (21), the upper end of the sliding rod (21) is fixedly connected to a button (22), the surface of the sliding rod (21) is fixedly connected to a circular ring (23), the lower surface of the circular ring (23) is fixedly connected to a spring (24), the lower end of the sliding rod (21) is fixedly connected to a sealing gasket (25), and the lower surface of the sealing gasket (25) is fixedly connected to a metal sheet (26).

2. The pulling device for agricultural machinery according to claim 1, characterized in that: The surfaces of the fixed handle (3) and the movable handle (5) are provided with anti-slip threads.

3. The pulling device for agricultural machinery according to claim 1, characterized in that: A threaded groove is provided on the inner wall surface of the hollow groove (8), and the threaded groove is threadedly connected to the adjusting rod (16).

4. The pulling device for agricultural machinery according to claim 1, characterized in that: The bottom surface of the base (14) is made of rubber material, and the size of the rubber material matches the size of the bottom surface of the base (14).

5. The pulling device for agricultural machinery according to claim 1, characterized in that: The diameter of the spring (24) is smaller than the diameter of the adjusting rod (16), and the diameter of the spring (24) is larger than the diameter of the limiting column (18).

6. The pulling device for agricultural machinery according to claim 1, characterized in that: The top of the suction cup (19) is made of metal, and the rest is made of rubber.

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