Tractor cab limiting device

Abstract

The utility model discloses a tractor cab limiting device which comprises a bottom plate, walking wheels are arranged on the front side and the rear side of the bottom plate, a plurality of supporting rods are arranged at the upper end of the bottom plate, a sun shield is arranged at the upper ends of the supporting rods jointly, a base is arranged at the upper end of the bottom plate, damping equipment is arranged at the upper end of the base, and a seat is arranged at the upper end of the damping equipment. Fixing plates are arranged on the two sides of the seat, a cavity is formed in the base, penetrating channels are formed in the cavity and the two sides of the base, matching mechanisms used for being matched with the fixing plates are arranged in the two penetrating channels, and a moving mechanism used for moving the two matching mechanisms is arranged in the cavity. According to the utility model, the hooks are matched with the through grooves, so that the up-and-down amplitude of the seat is limited within a certain range, the situation that the amplitude is larger and exceeds the maximum stroke and the minimum stroke of damping equipment, so that the damping equipment is damaged is avoided, and the service life of the damping equipment is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of tractor technology, and in particular to a tractor cab limiting device. Background Technology

[0002] A tractor is a self-propelled power unit used to tow and drive work machinery to complete various mobile tasks, and can also be used for stationary work. It consists of an engine, transmission, running gear, steering, hydraulic suspension, power output, electrical instruments, driving controls, and traction systems or devices. Engine power is transmitted to the drive wheels through the transmission system, enabling the tractor to move. In real life, rubber belts are commonly used as the power transmission medium. Tractors are classified by function and purpose into agricultural, industrial, and special-purpose tractors; and by structural type into wheeled, tracked, boat-shaped tractors, and self-propelled chassis tractors.

[0003] In order to increase the comfort of driving a tractor, existing technology usually adds a shock-absorbing device to the cab. However, the existing shock-absorbing device does not have a limit device. When the vehicle is traveling on a bumpy road, the shock-absorbing device may operate outside the maximum and minimum travel range for a long time, which will affect the service life of the shock-absorbing device. The limit device is fixed and cannot be quickly released according to the actual situation, which brings certain troubles to people's daily use. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology. By using the cooperation of multiple hooks and multiple through slots, the vertical range of the seat is limited to a certain range, avoiding excessive range that exceeds the maximum and minimum stroke of the shock absorption device, thereby causing damage to the shock absorption device and improving the service life of the shock absorption device. This is the tractor cab limiting device proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A tractor cab limiting device includes a base plate with wheels on both the front and rear sides. Multiple support rods are located on the upper part of the base plate, and a sunshade is located at the upper end of each support rod. A base is located on the upper part of the base, and a shock-absorbing device is located on the upper end of the base. A seat is located on the upper part of the shock-absorbing device, and fixed plates are located on both sides of the seat. A cavity is formed within the base, and through channels are formed on both sides of the cavity and the base. Each of the through channels contains a mating mechanism for engaging with the fixed plates. A moving mechanism is located within the cavity for moving the two mating mechanisms.

[0007] Preferably, the mating mechanism includes a movable plate slidably connected in the through channel, the movable plate having two connecting rods on its side wall, each of the connecting rods having a hook at its end, and two symmetrically arranged through slots on the two fixed plates, with the hooks respectively mating with the through slots.

[0008] Preferably, the moving mechanism includes a rotating rod that is rotatably connected through the chamber and the front end of the base. The outer wall of the rotating rod is provided with two push rods. The opposite surfaces of the two moving plates are provided with inclined surfaces. The ends of the two push rods are slidably connected to the two inclined surfaces respectively.

[0009] Preferably, each of the inner walls on both sides of the chamber is provided with two symmetrically arranged limiting rods, and each of the two movable plates is provided with a fixing block at both ends. The multiple limiting rods pass through multiple fixing blocks and are slidably connected to them.

[0010] Preferably, the plurality of fixing blocks and the chamber are elastically connected by springs, and the plurality of springs are respectively sleeved on the outer wall of the plurality of limiting rods.

[0011] Preferably, a damping pad is provided at the through-rotation connection between the rotating rod and the base, and a knob is provided at the end of the rotating rod.

[0012] The beneficial effects of this utility model are:

[0013] 1. By using multiple hooks and through slots, the vertical movement of the seat is limited to a certain range, preventing excessive movement that exceeds the maximum and minimum stroke of the shock absorber, thus avoiding damage to the shock absorber and extending its service life.

[0014] 2. By moving two movable plates to drive multiple connecting rods and hooks, the hooks are separated from the through groove, thus releasing the device and bringing convenience to people's daily use of the device. Attached Figure Description

[0015] Figure 1 This is a front view schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a front sectional view of the overall structure of this utility model;

[0017] Figure 3 This is a top cross-sectional view of the internal structure of the base of this utility model.

[0018] In the diagram: 1. Base plate, 2. Sunshade, 3. Base, 4. Shock absorption device, 5. Seat, 6. Fixing plate, 7. Through groove, 8. Hook, 9. Connecting rod, 10. Through passage, 11. Moving plate, 12. Rotating rod, 13. Chamber, 14. Inclined surface, 15. Push rod, 16. Fixing block, 17. Limiting rod, 18. Damping pad. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Reference Figure 1-3 The tractor cab limiting device includes a base plate 1, with wheels on both the front and rear sides of the base plate 1. Multiple support rods are located on the upper part of the base plate 1, and a sunshade 2 is located at the upper end of the support rods. A base 3 is located on the upper part of the base plate 1, and a shock absorber 4 is located on the upper part of the base 3. A seat 5 is located on the upper part of the shock absorber 4, and fixing plates 6 are located on both sides of the seat 5. A cavity 13 is formed inside the base 3, and through channels 10 are formed on both sides of the cavity 13 and the base 3. Each through channel 10 contains a mating mechanism for engaging with the fixing plates 6. The mechanism includes a movable plate 11 slidably connected within the through channel 10. The movable plate 11 has two connecting rods 9 on its side wall, and each connecting rod 9 has a hook 8 at its end. Two symmetrically arranged through slots 7 are opened on the two fixed plates 6. The hooks 8 cooperate with the through slots 7 respectively. Through the cooperation of the hooks 8 and the through slots 7, the vertical range of the seat 5 is limited to a certain range, avoiding excessive range that exceeds the maximum and minimum stroke of the shock absorber 4, thereby preventing damage to the shock absorber 4 and improving the service life of the shock absorber 4.

[0022] The chamber 13 is equipped with a moving mechanism for moving the two mating mechanisms. The moving mechanism includes a rotating rod 12 that is rotatably connected to the front end of the chamber 13 and the base 3. The outer wall of the rotating rod 12 is provided with two push rods 15. The opposite surfaces of the two moving plates 11 are provided with inclined surfaces 14. The ends of the two push rods 15 are slidably connected to the two inclined surfaces 14 respectively. By causing the two moving plates 11 to drive multiple connecting rods 9 and hooks 8 to move, the multiple hooks 8 are separated from the through groove 7, thereby releasing the device and bringing certain convenience to people's daily use of the device.

[0023] Two symmetrically arranged limiting rods 17 are provided on both sides of the inner wall of the chamber 13. Fixed blocks 16 are provided at both ends of the two movable plates 11. Multiple limiting rods 17 pass through multiple fixed blocks 16 and are slidably connected to them.

[0024] Multiple fixing blocks 16 are elastically connected to the chamber 13 by springs, and multiple springs are respectively sleeved on the outer wall of multiple limiting rods 17.

[0025] A damping pad 18 is provided at the through-rotation connection between the rotating rod 12 and the base 3, and a knob is provided at the end of the rotating rod 12.

[0026] When this utility model is in use, the combination of multiple hooks 8 and multiple through channels 10 allows the shock absorber 4 to cushion the seat 5 during vehicle operation. When the bumps are large, the combination of multiple hooks 8 and multiple through channels 7 keeps the vertical movement of the seat 5 within a certain range, preventing the amplitude from exceeding the maximum and minimum stroke of the shock absorber 4, which would otherwise damage the shock absorber 4 and improve its service life.

[0027] When it is necessary to disengage multiple hooks 8 from the through groove 7 according to actual conditions, rotate the rotating rod 12 to rotate the two push rods 15 on the outer wall of the rotating rod 12. Utilize the cooperation between the push rod 15 and the inclined surface 14, and the sliding connection between the moving plate 11 and the through channel 10, and the sliding connection between the fixed block 16 and the limiting rod 17, to make the push rod 15 press the two moving plates 11 to move. This causes the two moving plates 11 to drive multiple connecting rods 9 and hooks 8 to move, thus separating the multiple hooks 8 from the through groove 7 (the setting of the damping pad 18 restricts the position of the rotating rod 12 after rotation), thereby disengaging the device and bringing certain convenience to people's daily use of this device.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tractor cab limiting device, comprising a bottom plate (1), characterized in that: The bottom plate (1) is provided with walking wheels on both the front and rear sides; the top end of the bottom plate (1) is provided with a plurality of support rods; the top ends of the plurality of support rods are provided with a sun visor (2); the top end of the bottom plate (1) is provided with a base (3); the top end of the base (3) is provided with a shock absorbing device (4); the top end of the shock absorbing device (4) is provided with a seat (5); both sides of the seat (5) are provided with fixing plates (6); a chamber (13) is provided in the base (3); both sides of the chamber (13) and the base (3) are provided with through channels (10); both through channels (10) are provided with matching mechanisms for matching with the fixing plates (6); and a moving mechanism for moving the two matching mechanisms is provided in the chamber (13).

2. The tractor cab limiting device according to claim 1, characterized in that: The matching mechanism comprises a movable plate (11) slidably connected in the through channel (10), the side wall of the movable plate (11) is provided with two connecting rods (9), the ends of the plurality of connecting rods (9) are provided with hooks (8), the two fixed plates (6) are provided with two symmetrically arranged through grooves (7), and the plurality of hooks (8) are respectively matched with the plurality of through grooves (7).

3. The tractor cab limiting device according to claim 2, characterized in that: The moving mechanism comprises a rotating rod (12) which penetrates and is rotatably connected to the front end of the chamber (13) and the base (3); two push rods (15) are provided on the outer wall of the rotating rod (12); inclined surfaces (14) are provided on the opposite surfaces of the two moving plates (11); and the ends of the two push rods (15) are respectively slidably connected to the two inclined surfaces (14).

4. The tractor cab limiting device according to claim 3, characterized in that: Two symmetrically arranged limit rods (17) are provided on the inner walls on both sides of the chamber (13); fixed blocks (16) are provided at the front and rear ends of the two movable plates (11); and the plurality of limit rods (17) respectively penetrate the plurality of fixed blocks (16) and are slidably connected thereto.

5. The tractor cab limiting device according to claim 4, characterized in that: The plurality of fixed blocks (16) are elastically connected to the chamber (13) via springs, and the plurality of springs are respectively sleeved on the outer walls of the plurality of limit rods (17).

6. The tractor cab limiting device according to claim 5, characterized in that: A damping gasket (18) is provided at the through-rotation connection between the rotating rod (12) and the base (3), and a knob is provided at the end of the rotating rod (12).

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