Adjustable shock-proof rear wheel

Abstract

The utility model relates to the technical field of cart shock-proof components, and discloses an adjustable shock-proof rear wheel which comprises a rear wheel support connector, the bottom end of the rear wheel support connector is fixedly connected with an L-shaped connecting rod, the inner wall of the L-shaped connecting rod is rotatably connected with a first connecting shaft, the outer wall of the first connecting shaft is rotatably connected with a connecting plate, and the connecting plate is fixedly connected with the L-shaped connecting rod. The connecting plate is located on the outer wall of the L-shaped connecting rod, a rear wheel seat is fixedly connected to the inner wall of the connecting plate, and an adjusting assembly is arranged on the inner wall of the connecting plate. According to the utility model, by rotating the adjusting wrench, the adjusting wrench drives the adjusting block to rotate through the second connecting shaft, and the position of the adjusting block abutting against the L-shaped connecting rod is changed, so that the adjusting block drives the connecting plate to move through the second connecting shaft to change the position; and the length of the spring between the rear wheel bracket joint and the rear wheel seat is changed, so that the elastic force of the spring is changed, and the effect of adjusting the cushioning hardness is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a trolley shock absorbing part technical field especially relates to a rear wheel of adjustable shock absorbing. BACKGROUND

[0002] The trolley is a kind of common handling tool, moves by human power to push, to realize article movement.It is various in form, has baby carriage according to use, and it is convenient for parents to take baby to travel;Shopping trolley is used for supermarket shopping, and it is convenient for customer to place commodity.By the number of wheels, there is single-wheel, two-wheel, three-wheel and four-wheel car.Material quality, there is stainless steel, plastic, aluminum etc.In life, trolley is everywhere, greatly facilitates people's life and production, reduces the burden of carrying.

[0003] At present, many trolley rear wheels shock absorbing mostly adopt fixed shock absorbing structure, and the shock absorbing parameters of these structures are fixed, cannot be adjusted according to different road conditions, for example, on flat road, it can be felt that shock absorbing is too hard, leading to trolley vibration to be transmitted to the goods or passengers in the car, affect comfort;And on rugged road, it can not effectively buffer bumping due to insufficient shock absorbing, impact on goods in the car, even possibly affect the stability and safety of trolley.

[0004] For this, aiming at the technical problem that trolley shock absorbing effect is usually fixed and difficult to adjust, the present application proposes a rear wheel of adjustable shock absorbing. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the shortcomings in the prior art, and provides a rear wheel of adjustable shock absorbing, by rotating adjusting wrench, the adjusting wrench drives adjusting block to rotate through second connecting shaft, the position of adjusting block on L-shaped connecting rod changes, so that adjusting block drives connecting plate to move and change position through second connecting shaft, and then the length of spring between rear wheel support joint and rear wheel seat changes, the spring elasticity changes, so that the effect of adjusting shock absorbing hardness is achieved.

[0006] To achieve the above object, the utility model provides the following technical scheme: a rear wheel of adjustable shock absorbing, including rear wheel support joint, the bottom end of rear wheel support joint is fixedly connected with L-shaped connecting rod, the inner wall of L-shaped connecting rod is rotatably connected with first connecting shaft, the outer wall of first connecting shaft is rotatably connected with connecting plate, the connecting plate is located on the outer wall of L-shaped connecting rod, the inner wall of connecting plate is fixedly connected with rear wheel seat, and the inner wall of connecting plate is provided with adjusting assembly.

[0007] Further, the adjusting assembly includes second connecting shaft rotatably connected to the inner wall of the connecting plate, the outer wall of the second connecting shaft is fixedly connected with the adjusting block, and the adjusting block is located in the inner wall of the connecting plate.

[0008] Further, the adjusting block is a cuboid, and the adjusting block is attached to the bottom end of the inner wall of the L-shaped connecting rod.

[0009] Further, the front end of the connecting plate is provided with an adjusting wrench, and the rear end of the adjusting wrench is fixedly connected to the front end of the second connecting shaft.

[0010] Further, the first protrusion is fixedly connected to the middle of the bottom end of the rear wheel support joint, and the second protrusion is fixedly connected to the top end of the rear wheel seat.

[0011] Further, the first protrusion and the second protrusion are provided with a spring on the outer wall, one end of the spring is connected to the rear wheel support joint, and the other end of the spring is connected to the rear wheel seat.

[0012] Further, the bottom end of the L-shaped connecting rod is located in the inner wall of the connecting plate.

[0013] The utility model has the following beneficial effects:

[0014] In the utility model, the adjusting wrench is driven to rotate by the second connecting shaft, the position of the adjusting block on the L-shaped connecting rod is changed, the connecting plate is driven to move and change the position by the second connecting shaft, the length of the spring between the rear wheel support joint and the rear wheel seat is changed, the spring force is changed, and the effect of adjusting the shock absorption hardness is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A perspective view of the adjustable shock absorption rear wheel is provided for the utility model;

[0016] Figure 2 An expanded view of the adjustable shock absorption rear wheel is provided for the utility model;

[0017] Figure 3 A rear wheel shock absorption softening cross-sectional view of the adjustable shock absorption rear wheel is provided for the utility model;

[0018] Figure 4 A rear wheel shock absorption softening front view of the adjustable shock absorption rear wheel is provided for the utility model;

[0019] Figure 5 A rear wheel shock absorption hardening cross-sectional view of the adjustable shock absorption rear wheel is provided for the utility model;

[0020] Figure 6 A rear wheel shock absorption hardening front view of the adjustable shock absorption rear wheel is provided for the utility model.

[0021] LEGEND:

[0022] 1, rear wheel support joint; 2, L-shaped connecting rod; 3, first connecting shaft; 4, connecting plate; 5, rear wheel seat; 6, second connecting shaft; 7, adjusting block; 8, adjusting wrench; 9, first protrusion; 10, second protrusion; 11, spring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Referring to Figure 1 and Figure 2 An embodiment provided by the utility model: a rear wheel with adjustable shock absorption, comprising a rear wheel support joint 1, the bottom end of the rear wheel support joint 1 is fixedly connected with an L-shaped connecting rod 2, the inner wall of the L-shaped connecting rod 2 is rotatably connected with a first connecting shaft 3, the outer wall of the first connecting shaft 3 is rotatably connected with a connecting plate 4, the connecting plate 4 is located on the outer wall of the L-shaped connecting rod 2, the inner wall of the connecting plate 4 is fixedly connected with a rear wheel seat 5, the inner wall of the connecting plate 4 is rotatably connected with a second connecting shaft 6, the outer wall of the second connecting shaft 6 is fixedly connected with an adjusting block 7, the adjusting block 7 is located on the inner wall of the connecting plate 4, the adjusting block 7 is a cuboid, the adjusting block 7 is close to the bottom end of the inner wall of the L-shaped connecting rod 2, the front end of the connecting plate 4 is provided with an adjusting wrench 8, the rear end of the adjusting wrench 8 is fixedly connected with the front end of the second connecting shaft 6, the bottom end of the rear wheel support joint 1 is fixedly connected with a first protrusion 9 in the middle, the top end of the rear wheel seat 5 is fixedly connected with a second protrusion 10, the outer wall of the first protrusion 9 and the second protrusion 10 is sleeved with a spring 11, one end of the spring 11 is connected with the rear wheel support joint 1, the other end of the spring 11 is connected with the rear wheel seat 5, and the bottom end of the L-shaped connecting rod 2 is located on the inner wall of the connecting plate 4.

[0025] Specifically, when the adjusting wrench 8 drives the adjusting block 7 to rotate through the second connecting shaft 6, the corner of the adjusting block 7 is an arc surface, which facilitates the rotation of the adjusting block 7, because the distance from the second connecting shaft 6 to the right end of the adjusting block 7 is greater than the distance from the second connecting shaft 6 to the bottom end of the adjusting block 7, when the right side of the adjusting block 7 is rotated to the bottom end, the connecting plate 4 will be moved upwards, and the right side of the connecting plate 4 will rotate on the L-shaped connecting rod 2 through the first connecting shaft 3, the first protrusion 9 and the second protrusion 10 have certain limiting function, which can reduce the twisting, skewing and other situations of the spring 11 in the compression or stretching process.

[0026] Working principle: In the process of using the stroller, the effect of shock absorption softness and hardness may need to be changed according to different road conditions. When the stroller encounters a road construction area full of obstacles such as stones and soil blocks, the harder shock absorption effect is particularly important. It can provide stronger support for the stroller to avoid excessive shaking of the wheels due to sinking into potholes. Referring to Figure 5 and Figure 6 When the rear wheel shock absorption needs to be changed to a hard state, only need to turn the adjusting wrench 8 to a vertical state, make the adjusting wrench 8 drive the second connecting shaft 6 to rotate, the second connecting shaft 6 drives the adjusting block 7 to rotate, so that the adjusting block 7 rotates to the bottom end and abuts against the L-shaped connecting rod 2 on the right side, thereby driving the connecting plate 4 to move up through the second connecting shaft 6, so that the rear wheel seat 5 moves up, the distance between the rear wheel seat 5 and the rear wheel support joint 1 becomes smaller, thereby compressing the spring 11, so that the spring 11 becomes larger, thereby adjusting the rear wheel shock absorption state to a hard state. For example, on a flat urban street, the ground has almost no obvious ups and downs and bumps. At this time, the softer shock absorption setting can reduce the vibration transmitted to the stroller. Referring to Figure 3 and Figure 4 When the rear wheel shock absorption needs to be changed to a soft state, only need to turn the adjusting wrench 8 to a horizontal state, so that the distance between the rear wheel seat 5 and the rear wheel support joint 1 becomes larger, thereby stretching the spring 11, so that the spring 11 becomes smaller, thereby adjusting the rear wheel shock absorption state to a soft state.

[0027] Finally, it should be pointed out that the above-mentioned is only the preferred embodiment of the present application and does not limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent substitutions for some technical features. Any modification, equivalent substitution, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An adjustable shock absorbing rear wheel, characterized by, The application relates to a rear wheel support joint (1) which is fixedly connected with an L-shaped connecting rod (2) at the bottom end, the inner wall of the L-shaped connecting rod (2) is rotationally connected with a first connecting shaft (3), the outer wall of the first connecting shaft (3) is rotationally connected with a connecting plate (4), the connecting plate (4) is located on the outer wall of the L-shaped connecting rod (2), the inner wall of the connecting plate (4) is fixedly connected with a rear wheel seat (5), and the inner wall of the connecting plate (4) is provided with an adjusting assembly.

2. The adjustable suspension rear wheel of claim 1, wherein: The adjusting assembly comprises a second connecting shaft (6) which is rotationally connected to the inner wall of the connecting plate (4), and the outer wall of the second connecting shaft (6) is fixedly connected with an adjusting block (7), and the adjusting block (7) is located on the inner wall of the connecting plate (4).

3. An adjustable shock absorbing rear wheel according to claim 2, wherein: The adjusting block (7) is a cuboid, and the adjusting block (7) is tightly attached to the bottom end of the inner wall of the L-shaped connecting rod (2).

4. The adjustable suspension rear wheel of claim 2, wherein: The front end of the connecting plate (4) is provided with an adjusting wrench (8), and the rear end of the adjusting wrench (8) is fixedly connected to the front end of the second connecting shaft (6).

5. The adjustable suspension rear wheel of claim 1, wherein: The bottom end of the rear wheel support joint (1) is fixedly connected with a first protruding block (9) at the middle part, and the top end of the rear wheel seat (5) is fixedly connected with a second protruding block (10).

6. An adjustable shock absorbing rear wheel according to claim 5, wherein: The outer wall of the first protruding block (9) and the second protruding block (10) is sleeved with a spring (11), one end of the spring (11) is connected with the rear wheel support joint (1), and the other end of the spring (11) is connected with the rear wheel seat (5).

7. The adjustable suspension rear wheel of claim 1, wherein: The bottom end of the L-shaped connecting rod (2) is located on the inner wall of the connecting plate (4).

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