Combined handrail for walking tractor

Abstract

The utility model discloses a combined handrail for a walking tractor, which comprises a first handrail, a second handrail and a third handrail, the second handrail is connected with the third handrail, the left end of the first handrail is provided with a connecting section, the right end of the first handrail is connected with a first connecting block, and the left end of the second handrail is connected with a second connecting block. A first hinge plate is arranged at the upper end between the first connecting block and the second connecting block, a second hinge plate is arranged at the lower end between the first connecting block and the second connecting block, the first hinge plate and the second hinge plate are connected through two hinge bolts, and the two hinge bolts penetrate through the first connecting block and the second connecting block correspondingly and are rotationally arranged with the first connecting block and the second connecting block correspondingly. According to the utility model, the angle of the handle can be adjusted, the device is suitable for operators with various body types, and the armrest can be folded to reduce the occupied space.

Description

Technical Field

[0001] The utility model relates to the technical field of cardboard printing, in particular to a combined armrest for a walking tractor. Background Art

[0002] A hand tractor is a small tractor, a means of transportation and agricultural machinery popular in rural areas of China. It is powered by a diesel engine. Its small size, flexibility and strong power make it very popular among farmers. The part of the hand tractor used for manual operation is mainly the handlebar, also called the armrest. A brake is set below the handle at the end of the armrest, and a clutch lever is set on the side wall of the armrest. Steering is achieved by manually operating the brakes on both sides. A seat structure for the driver is set at the end of the hand tractor. The person sits on it and holds the armrests with both hands. Because the height and arm length of the drivers are different, the angles of the arms and wrists, and the loads on the wrists are different when sitting on the seat to operate. The fixed handlebar structure may cause more severe discomfort or heavier wrist loads when operated by different people. At the same time, because the hand tractor has a long armrest, it needs to occupy a large space when transporting and parking. Even if it is disassembled for transport, the length of the armrest will extend the upper limit of the length of the transport container.

[0003] Therefore, the problem that the inventor wanted to solve was to design a device with an adjustable handle angle, suitable for operators of various body shapes, and a foldable armrest to reduce the space occupied. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a combined armrest for a walking tractor, which can achieve an adjustable handle angle, is suitable for operators of various body shapes, and has the function of being foldable to reduce space occupation.

[0005] The technical solution adopted by the device of the utility model is: a combined armrest for a walking tractor, which includes a first armrest, a second armrest, and a third armrest, the second armrest is connected to the third armrest, the left end of the first armrest is provided with a connecting section, the right end of the first armrest is connected to a first connecting block, the left end of the second armrest is connected to a second connecting block, a first hinge plate is provided at the upper end between the first connecting block and the second connecting block, and a second hinge plate is provided at the lower end, the first hinge plate and the second hinge plate are connected by two hinge bolts, and the two hinge bolts pass through The first connecting block and the second connecting block are rotatably arranged with the first connecting block and the second connecting block respectively. A sliding connecting sleeve is slidingly arranged on the outer side of the first armrest. Four positioning holes are provided on the end surface of the sliding connecting sleeve. Two threaded holes are provided on the end surface of the first armrest and the second armrest on one side close to the positioning holes. The end of the third armrest is connected to a fixed bracket, and a rotating hole and a fastening hole are provided on the fixed bracket. A rotating bolt is provided on the inside of the rotating hole. The fixed bracket is connected to a flip bracket through a rotating bolt and a nut. The end of the flip bracket is connected to a handle.

[0006] Furthermore, a top screw hole is provided on the end surface of the sliding connection sleeve, and a top screw is threadedly connected to the inner side of the top screw hole.

[0007] Furthermore, a limiting bolt is threadedly connected on the end surface of the first handrail.

[0008] Furthermore, the sliding connection sleeve is locked with the first armrest via a top screw.

[0009] Furthermore, connecting bolts are provided inside the four positioning holes on the sliding connecting sleeve, and the four connecting bolts are respectively threadedly connected to the four threaded holes on the first handrail and the second handrail and tightened.

[0010] Furthermore, the flip bracket is provided with three locking holes distributed at equal angles around the circumference, and the locking bolt passes through the fastening hole and the locking hole in sequence to lock the flip bracket and the fixed bracket through a nut.

[0011] Furthermore, the first hinge plate is provided with two symmetrically distributed stepped holes, and there is a distance between the lower end surface of the nut of the hinge bolt and the inner end surface of the stepped hole.

[0012] Furthermore, the hinge bolt is locked and fixed with the second hinge plate and is rotatably arranged with the first hinge plate.

[0013] The beneficial effects of the device of the utility model are:

[0014] 1. The utility model adopts a handle with adjustable angle to adapt to the wrist and arm needs of various types of operators. At the same time, the middle part of the armrest is provided with a foldable structure to facilitate the adjustment of the overall length of the armrest. At the same time, the armrest and handle are both detachable structures, which realizes the adjustable handle angle and is suitable for operators of various body shapes. The armrest can be folded to reduce the space occupied. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural view of the utility model.

[0016] Figure 2 This is a structural view of the first hinged plate of the present invention.

[0017] Figure 3 This is a structural view of the sliding connection set of the utility model.

[0018] Figure 4 This is a structural view of the handle of the utility model.

[0019] Explanation of the accompanying drawings: 1-first armrest; 2-second armrest; 3-connecting frame; 4-sliding connecting sleeve; 5-first hinged plate; 6-first connecting block; 7-second connecting block; 8-fixed bracket; 9-flip bracket; 10-rotating bolt; 11-locking bolt; 12-handle; 13-reinforcement rib; 14-third armrest; 15-positioning hole; 16-threaded hole; 17-limiting bolt; 18-top screw; 19-second hinged plate; 20-hinge bolt; 21-locking hole. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to specific embodiments. These embodiments are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. It should also be understood that after reading the teachings of the present invention, those skilled in the art may make various changes or modifications to the present invention, and that these equivalent forms also fall within the scope defined by the appended claims.

[0021] Example 1: See Figures 1 to 4 This is a structural view of the utility model, a structural view of the first hinged plate 5, an assembly structural view of the sliding connecting sleeve 4, and a structural view of the handle. It is a combined armrest for a walking tractor, which includes a first armrest 1, a second armrest 2, and a third armrest 14. The second armrest 2 is connected to the third armrest 14. A connecting section is provided at the left end of the first armrest 1. Two through holes are provided on the connecting section for passing bolts to connect to the frame.

[0022] The right end of the first handrail 1 is connected to the first connecting block 6, and the left end of the second handrail 2 is connected to the second connecting block 7. A first hinge plate 5 is provided at the upper end between the first connecting block 6 and the second connecting block 7, and a second hinge plate 19 is provided at the lower end. The first hinge plate 5 and the second hinge plate 19 are connected by two hinge bolts 20. The two hinge bolts 20 pass through the first connecting block 6 and the second connecting block 7 respectively and are rotated with the first connecting block 6 and the second connecting block 7 respectively. The first hinge plate 5 is provided with two symmetrical parts. There is a stepped hole of the cloth, and there is a gap between the lower end surface of the nut of the hinge bolt 20 and the inner end surface of the stepped hole. The hinge bolt 20 is locked and fixed with the second hinge plate 19 and is rotatably arranged with the first hinge plate 5. When the sliding connecting sleeve 4 is not connected to the first armrest 1 and the second armrest 2, the second armrest 2 can be flipped over and rotated along the two hinge bolts 20 to rotate the second armrest 2 toward the direction close to the first armrest 1 for folding. The first connecting block 6 and the second connecting block 7 have the same structure and are smaller in size than the first armrest 1 and the second armrest 2.

[0023] The outer side of the first handrail 1 is provided with a sliding connection sleeve 4 for sliding, and four positioning holes 15 are provided on the end surface of the sliding connection sleeve 4. Two threaded holes 16 are provided on the end surface of the first handrail 1 and the second handrail 2 on one side near the positioning holes 15. In order to prevent the sliding connection sleeve 4 from making abnormal noise due to the vibration of the walking tractor on the first handrail 1, a top screw 18 hole is provided on the end surface of the sliding connection sleeve 4. The inside of the top screw 18 hole is threadedly connected with a top screw 18. The sliding connection sleeve 4 is locked with the first handrail 1 through the top screw 18. When the sliding connection sleeve 4 is not connected to the first handrail 1 and the second handrail 2, the position of the sliding connection sleeve 4 can be limited by a limiting method. The end surface of the first handrail 1 is threadedly connected with a limiting bolt 17. When the handrail is in normal use, the first handrail 1 and the second handrail 2 are connected through the sliding connection sleeve 4. The four positioning holes 15 on the sliding connection sleeve 4 are provided with connecting bolts, and the four connecting bolts are respectively threadedly connected with the four threaded holes 16 on the first handrail 1 and the second handrail 2 and tightened to complete the connection.

[0024] The end of the third armrest 14 is connected to a fixed bracket 8, which has a rotating hole and a fastening hole, and a rotating bolt 10 is provided on the inside of the rotating hole. The fixed bracket 8 is connected to the flip bracket 9 through the rotating bolt 10 and the nut, and the end of the flip bracket 9 is connected to the handle 12. The flip bracket 9 has three locking holes 21 distributed in a circle with equal angles. The locking bolt 11 passes through the fastening hole and the locking hole 21 in turn to lock the flip bracket 9 and the fixed bracket 8 through the nut. The angle of the handle 12 can be adjusted by removing the locking bolt 11 and adjusting the locking hole 21 where the locking bolt 11 is installed. In addition, in order to increase the comfort of the human body, the handle 12 is provided with an installation step structure for sleeved silicone jacket.

[0025] A connecting frame 3 is provided on the end surface of the third handrail 14 . In addition, a lug for fixing the brake controller should be provided on the end surface of the third handrail 14 or the end surface of the fixing bracket 8 .

[0026] In order to strengthen the connection strength between the handle 12 and the flip bracket 9 , a reinforcing rib 13 is connected between the reinforcing handle 12 and the flip bracket 9 .

[0027] The utility model adopts a handle with adjustable angle to adapt to the wrist and arm needs of various types of operators. At the same time, a foldable structure is provided in the middle part of the armrest, which is convenient for adjusting the overall length of the armrest. At the same time, the armrest and the handle are both detachable structures, realizing the 12-angle adjustment of the handle, which is suitable for operators of various body shapes. The armrest can be folded to reduce the space occupied.

Claims

1. A combined armrest for a walking tractor, characterized by: The invention comprises a first handrail (1), a second handrail (2), and a third handrail (14), wherein the second handrail (2) is connected to the third handrail (14), a connecting section is provided at the left end of the first handrail (1), a first connecting block (6) is connected at the right end of the first handrail (1), and a second connecting block (7) is connected at the left end of the second handrail (2), a first hinge plate (5) is provided at the upper end between the first connecting block (6) and the second connecting block (7), and a second hinge plate (19) is provided at the lower end, the first hinge plate (5) and the second hinge plate (19) are connected by two hinge bolts (20), and the two hinge bolts (20) pass through the first connecting block (6) and the second connecting block (7) respectively and are connected to the first connecting block (6) and the second connecting block (7). The first armrest (1) is rotatably arranged with the first connecting block (6) and the second connecting block (7). A sliding connecting sleeve (4) is slidably arranged on the outer side of the first armrest (1). Four positioning holes (15) are provided on the end surface of the sliding connecting sleeve (4). Two threaded holes (16) are provided on the end surface of the first armrest (1) and the second armrest (2) near the positioning holes (15). The end of the third armrest (14) is connected to a fixed bracket (8). A rotating hole and a fastening hole are provided on the fixed bracket (8). A rotating bolt (10) is provided inside the rotating hole. The fixed bracket (8) is connected to a flip bracket (9) through a rotating bolt (10) and a nut. The end of the flip bracket (9) is connected to a handle (12).

2. The combined armrest for a walking tractor according to claim 1, characterized in that: A top screw (18) hole is provided on the end surface of the sliding connection sleeve (4), and a top screw (18) is threadedly connected to the inner side of the top screw (18) hole.

3. The combined armrest for a walking tractor according to claim 1, characterized in that: A limiting bolt (17) is threadedly connected to the end surface of the first handrail (1).

4. The combined armrest for a walking tractor according to claim 1, characterized in that: The sliding connection sleeve (4) is locked with the first armrest (1) via a top screw (18).

5. The combined armrest for a walking tractor according to claim 1, characterized in that: Connecting bolts are provided inside the four positioning holes (15) on the sliding connection sleeve (4), and the four connecting bolts are respectively threadedly connected to the four threaded holes (16) on the first handrail (1) and the second handrail (2) and tightened.

6. The combined armrest for a walking tractor according to claim 1, characterized in that: The flip bracket (9) is provided with three locking holes (21) distributed at equal angles. The locking bolts (11) pass through the fastening holes and the locking holes (21) in sequence to lock the flip bracket (9) and the fixed bracket (8) through nuts.

7. The combined armrest for a walking tractor according to claim 1, characterized in that: The first hinge plate (5) is provided with two symmetrically distributed stepped holes, and a distance exists between the lower end surface of the nut of the hinge bolt (20) and the inner end surface of the stepped hole.

8. The combined armrest for a walking tractor according to claim 7, characterized in that: The hinge bolt (20) is locked and fixed with the second hinge plate (19) and is rotatably arranged with the first hinge plate (5).

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