Damping structure of four-fulcrum counterbalance forklift truck

Abstract

The utility model relates to the technical field of forklift truck components, and discloses a shock absorption structure of a four-fulcrum counterbalance forklift truck, which comprises a shock absorption mechanism, the shock absorption mechanism comprises two shock absorbers which are symmetrically arranged, the two shock absorbers are symmetrically and obliquely arranged, each shock absorber comprises a damping expansion piece, a damping expansion shaft is arranged above the damping expansion piece, and the damping expansion piece is fixedly connected with the shock absorption mechanism. And the upper end of the damping telescopic shaft is fixedly connected with a mounting end cover. According to the utility model, by adopting the design of the shock absorption structure consisting of the two shock absorbers which are symmetrically and obliquely arranged, the whole shock absorption structure has four fulcrums, multi-point support can be carried out, and meanwhile, the two shock absorbers form an inclined triangular elastic support structure, so that compared with the design of a vertical shock absorption structure of a single shock absorber, the shock absorption structure has the advantages that the shock absorption efficiency is greatly improved; when a high-strength load is carried out, the compression deformation of the spring is reduced, and when the spring is vibrated, the damping performance of the spring is high.

Description

Technical Field

[0001] The utility model relates to the technical field of forklift components, in particular to a shock absorbing structure of a four-support point counterbalanced forklift. Background Art

[0002] A counterbalanced forklift is a lifting vehicle with a lifting fork at the front and a counterweight at the rear. It is also called a forklift. It is suitable for loading, unloading, stacking and moving finished goods in ports, stations and enterprises. At present, a counterbalanced forklift consists of multiple components, including the shock-absorbing structure of the counterbalanced forklift.

[0003] The existing shock-absorbing structure of a counterbalanced forklift has the following problems during use: the shock-absorbing structure of the counterbalanced forklift is usually mainly composed of an upright shock absorber, which is a double-support installation structure. When a single upright shock absorber counterbalanced forklift shock-absorbing structure is subjected to high-intensity loads, its spring compression deformation is too large, and its shock-absorbing performance is weakened when it is subjected to vibration. Utility Model Content

[0004] (1) Technical problems solved

[0005] In view of the deficiencies in the prior art, the present invention provides a shock absorbing structure for a four-point counterbalanced forklift, which solves the problems raised in the background art.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a shock-absorbing structure for a four-point counterbalanced forklift, comprising a shock-absorbing mechanism, wherein the shock-absorbing mechanism comprises two shock absorbers arranged symmetrically, and the two shock absorbers are arranged symmetrically and inclined, and the shock absorber comprises a damping telescopic device, a damping telescopic shaft is arranged above the damping telescopic device, and the upper end of the damping telescopic shaft is fixedly connected to a mounting end cover, a threaded ring is fixedly sleeved on the outer side of the bottom of the damping telescopic device, and a shock absorber spring is fixedly connected between the bottom of the mounting end cover and the top of the threaded ring, and the shock absorber spring is arranged on the outer side of the damping telescopic shaft on its corresponding side.

[0008] As a further solution of the present invention: a horizontal guide and limiting mechanism is provided at the bottom ends of the two damping expanders, and the horizontal guide and limiting mechanism includes a horizontal mounting frame, a mounting mechanism is provided in the middle of the horizontal mounting frame, and a connecting mechanism is horizontally movably installed at both ends of the horizontal mounting frame, and the damping expander on the corresponding side is rotatably installed above the connecting mechanism.

[0009] As a further solution of the present invention: the mounting mechanism includes grooves provided at the center positions of the upper and lower side walls of the horizontal mounting frame, and two mounting holes are symmetrically provided between the side walls facing each other on the two grooves.

[0010] As a further solution of the present invention: a slide groove is provided between the upper and lower side walls at both ends of the horizontal mounting frame, a slide rod is fixedly connected between the center positions of the two side walls of the slide groove, and the connecting mechanism includes a slider slidably connected to the outside of the slide rod, and the slider is slidably connected to the slide groove on its corresponding side, and a spring is fixedly connected between the two facing ends of the slider and the inner wall of the slide groove, and the top wall of the slider is fixedly connected to two connecting seats in a front-to-back symmetrical shape, and a connecting shaft is fixedly connected between the side walls facing each other above the two connecting seats on the same side, and the outer side of the connecting shaft is rotatably connected to the bottom connecting ring of the damping expander on its corresponding side.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. In the present invention, a shock-absorbing structure design consisting of two shock absorbers arranged symmetrically and tilted is adopted. The overall shock-absorbing structure has a total of four fulcrums, which can provide multi-point support. At the same time, the two shock absorbers form an inclined triangular elastic support structure. Compared with the upright shock-absorbing structure design of a single shock absorber, the spring compression deformation is reduced when a high-intensity load is applied, and the shock-absorbing performance is stronger when subjected to vibration.

[0013] 2. In the utility model, a horizontal guide and limit mechanism is provided at the bottom of the two shock absorbers. Since the inclined shock absorber structure is subjected to a vertical load, the upper end support point of the shock absorber is fixedly installed, so the lower end support point of the shock absorber needs to move. The lower end support point of the shock absorber is provided with a horizontal guide and limit mechanism to prevent the lower end support point of the shock absorber from moving disorderly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an overall three-dimensional diagram of the utility model;

[0015] Figure 2 This is a three-dimensional diagram of the horizontal guide and limiting mechanism of the utility model;

[0016] Figure 3 This is a three-dimensional diagram of the shock absorbing mechanism of the present utility model;

[0017] Figure 4 This is a diagram of a counterbalanced forklift after installation according to the present invention.

[0018] In the figure: 1. Horizontal guide limit mechanism; 2. Shock absorption mechanism; 11. Horizontal mounting frame; 12. Groove; 13. Mounting hole; 14. Slide groove; 15. Slide rod; 16. Slider; 17. Connecting seat; 18. Connecting shaft; 21. Damping expansion joint; 22. Mounting end cover; 23. Shock absorber spring. DETAILED DESCRIPTION

[0019] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0020] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0022] See also Figures 1 to 4 In the embodiment of the utility model, a shock absorption structure of a four-point counterbalanced forklift includes a shock absorption mechanism 2, which includes two shock absorbers arranged in a symmetrical shape, and the two shock absorbers are arranged in a symmetrical and inclined shape. The shock absorber includes a damping expansion joint 21, a damping expansion joint 21 is provided above the damping expansion joint 21, and the upper end of the damping expansion joint is fixedly connected with a mounting end cover 22, a threaded ring is fixedly sleeved on the outer side of the bottom of the damping expansion joint 21, and a shock absorber spring 23 is fixedly connected between the bottom of the mounting end cover 22 and the top of the threaded ring. The shock absorber spring 23 is arranged on the outer side of the damping expansion joint on its corresponding side. The overall shock absorption structure design consists of two shock absorbers arranged in a symmetrical and inclined shape. The overall shock absorption structure has a total of four fulcrums and can be supported at multiple points. At the same time, the two shock absorbers constitute an inclined triangular elastic support structure. Compared with the upright shock absorption structure design of a single shock absorber, the compression deformation of the spring is reduced when carrying high-intensity loads, and the shock absorption performance is stronger when subjected to vibration.

[0023] A horizontal guiding and limiting mechanism 1 is provided at the bottom end of the two damping expansion joints 21. The horizontal guiding and limiting mechanism 1 includes a horizontal mounting frame 11. A mounting mechanism is provided in the middle of the horizontal mounting frame 11. Connecting mechanisms are horizontally movably installed at both ends of the horizontal mounting frame 11, and the damping expansion joints 21 on the corresponding side are rotatably installed above the connecting mechanism. A horizontal guiding and limiting mechanism 1 is provided at the bottom of the two shock absorbers. When the inclined shock absorber structure is subjected to a vertical load, the upper end support of the shock absorber is fixedly installed, so the lower end support of the shock absorber needs to move. The lower end support of the shock absorber is provided with a horizontal guiding and limiting mechanism 1 to prevent the lower end support of the shock absorber from moving disorderly.

[0024] The mounting mechanism includes a groove 12 provided at the center position of the upper and lower side walls of the horizontal mounting frame 11. Two mounting holes 13 are symmetrically provided between the side walls facing each other on the two grooves 12. The overall shock-absorbing structure can be connected to the counterbalanced forklift frame through the top of the two shock absorber mounting end covers 22 and the mounting assembly, and can be connected to the corresponding components of the wheel suspension of the counterbalanced forklift through the mounting holes 13 of the horizontal mounting frame 11 and the mounting bolts.

[0025] A slide groove 14 is provided between the upper and lower side walls at both ends of the horizontal mounting frame 11, and a slide rod 15 is fixedly connected between the center positions of the two side walls of the slide groove 14. The connecting mechanism includes a slider 16 slidably connected to the outside of the slide rod 15, and the slider 16 is slidably connected to the slide groove 14 on its corresponding side. A spring is fixedly connected between the opposite ends of the two sliders 16 and the inner wall of the slide groove 14. The top wall of the slider 16 is symmetrically connected to two connecting seats 17 in a front-to-back shape. A connecting shaft 18 is fixedly connected between the opposite side walls above the two connecting seats 17 on the same side. The outer side of the connecting shaft 18 is rotatably connected to the bottom connecting ring of the damping retractor 21 on the corresponding side, and the bottom end of the shock absorber is rotatably connected to the slider 16 structure. The slider 16 structure can only move horizontally along the slide groove 14 and the slide rod 15, playing a role in limiting the movement and guiding the bottom end of the shock absorber.

[0026] The working principle of the present invention is as follows: the overall shock-absorbing structure can be connected to the counterbalanced forklift frame through the top of the two shock absorber mounting end covers 22 and the matching mounting components, and can be connected to the corresponding components of the wheel suspension of the counterbalanced forklift through the mounting holes 13 of the horizontal mounting frame 11 and the matching mounting bolts. The overall shock-absorbing structure design is composed of two shock absorbers arranged in a symmetrical and inclined shape. The overall shock-absorbing structure has a total of four fulcrums, which can be supported at multiple points. At the same time, the two shock absorbers constitute an inclined triangular elastic support structure. Compared with the upright shock-absorbing structure design of a single shock absorber, the spring compression deformation is reduced when high-intensity loads are carried out, and the shock-absorbing performance is stronger when subjected to vibration. In addition, a horizontal guide limit mechanism 1 is provided at the bottom of the two shock absorbers. Since the inclined shock absorber structure is subjected to vertical loads, the upper end fulcrum of the shock absorber is fixedly installed, so the lower end fulcrum of the shock absorber needs to move. The lower end fulcrum of the shock absorber is provided with a horizontal guide limit mechanism 1, which can prevent the lower end fulcrum of the shock absorber from moving disorderly.

[0027] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A shock absorbing structure for a four-point counterbalanced forklift, comprising a shock absorbing mechanism (2); Its characteristics are: The shock absorbing mechanism (2) comprises two shock absorbers arranged in a symmetrical shape, and the two shock absorbers are arranged in a symmetrical and inclined shape; The shock absorber comprises a damping expansion joint (21), and the bottom ends of the two damping expansion joints (21) are provided with horizontal guide limiting mechanisms (1); The horizontal guide limiting mechanism (1) comprises a horizontal mounting frame (11), a mounting mechanism is provided in the middle of the horizontal mounting frame (11), connecting mechanisms are horizontally movably mounted at both ends of the horizontal mounting frame (11), and a damping expansion joint (21) corresponding to one side thereof is rotatably mounted above the connecting mechanism.

2. The shock absorbing structure of a four-point counterbalanced forklift according to claim 1, characterized in that: A damping telescopic shaft is provided above the damping telescopic device (21), and a mounting end cover (22) is fixedly connected to the upper end of the damping telescopic shaft. A threaded ring is fixedly sleeved on the outer side of the bottom of the damping telescopic device (21).

3. The shock absorbing structure of a four-point counterbalanced forklift according to claim 2, characterized in that: A shock absorber spring (23) is fixedly connected between the bottom of the mounting end cover (22) and the top of the threaded ring, and the shock absorber spring (23) is arranged on the outside of the damping telescopic shaft on the corresponding side.

4. The shock absorbing structure of a four-point counterbalanced forklift according to claim 1, characterized in that: The mounting mechanism comprises a groove (12) provided at the center of the upper and lower side walls of the horizontal mounting frame (11), and two mounting holes (13) are symmetrically provided between the side walls facing each other on the two grooves (12).

5. The shock absorbing structure of a four-point counterbalanced forklift according to claim 1, characterized in that: A sliding groove (14) is provided between the upper and lower side walls at both ends of the horizontal mounting frame (11), and a sliding rod (15) is fixedly connected between the center positions of the two side walls of the sliding groove (14).

6. The shock absorbing structure of a four-point counterbalanced forklift according to claim 1, characterized in that: The connecting mechanism includes a slider (16) slidably connected to the outside of the slide rod (15), and the slider (16) is slidably connected to the slide groove (14) on the corresponding side thereof. A spring is fixedly connected between the opposite ends of the two sliders (16) and the inner wall of the slide groove (14).

7. The shock absorbing structure of a four-point counterbalanced forklift according to claim 6, characterized in that: The top wall of the slider (16) is fixedly connected to two connecting seats (17) in a front-to-back symmetrical shape, and a connecting shaft (18) is fixedly connected between the side walls on the upper side of the two connecting seats (17) on the same side. The outer side of the connecting shaft (18) is rotatably connected to the bottom connecting ring of the damping expansion joint (21) on the corresponding side.

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