Anti-seismic device for trolley

Abstract

According to the anti-seismic device for the trolley, an inserting rod, a sliding block, a pushing block, a spring and a pull ring component are arranged and used in cooperation, a user only needs to simply pull the pull ring to drive the inserting rod to slide in the sliding block, meanwhile, the spring is compressed, and the pull ring is separated from a limiting groove; then the sliding block is driven to slide in the sliding groove through downward pulling operation, after the pull ring is loosened, the spring resets to push the insertion rod to be inserted into the other insertion hole, and the pull ring is clamped into the corresponding limiting groove, so that the distance between the bottom of the trolley and the ground is rapidly adjusted. The problem that a traditional trolley is inconvenient to use under different road surface conditions due to the fact that the ground clearance is fixed is effectively solved, the adaptability and trafficability of the trolley to different working environments are remarkably improved, meanwhile, the stability after adjustment is ensured through a spring reset mechanism, and the situation of accidental displacement in the using process is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of handcart technology, and specifically relates to an anti-vibration device for handcarts. Background Technology

[0002] A handcart is a lightweight transport tool commonly used for moving goods or items. It is usually made of metal or plastic, has a simple structure, and is easy to operate. Handcarts come in various designs, including folding, flatbed, and box types, to meet different needs. They are widely used in supermarkets, warehouses, construction sites, and other places to improve work efficiency. Handcarts are economical and practical, and are an indispensable auxiliary device in daily life and work.

[0003] The ground clearance of the bottom of traditional handcart anti-vibration devices is fixed during the design and manufacturing process and cannot be adjusted according to usage requirements. When used on uneven road surfaces, this can lead to poor handcart maneuverability and even the risk of goods tipping over. To solve the above problems, we provide an anti-vibration device for handcarts. Utility Model Content

[0004] The purpose of this utility model is to provide a shock-absorbing device for handcarts, in order to solve the problem mentioned in the background art that the bottom height of the traditional handcart shock-absorbing device is fixed during the design and manufacturing process and cannot be adjusted according to the usage requirements. When it needs to be used on uneven road surfaces, it will lead to poor handcart passability and even the risk of goods tipping over.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a shock-absorbing device for a handcart, comprising a bracket, a swing arm rotatably connected to the front of the bracket, a wheel rotatably connected to the other end of the swing arm, a damping shock absorber rotatably connected to the top of the swing arm, a sliding groove provided on the front of the bracket, a slider slidably connected inside the sliding groove, a limit mechanism provided inside the slider, a connecting shaft fixedly connected to the front of the slider, and the other end of the damping shock absorber rotatably sleeved with the connecting shaft.

[0006] Preferably, the limiting mechanism includes a rod, the surface of which is slidably sleeved with a slider, a push block is fixedly sleeved on the surface of the rod, a first sliding hole adapted to the push block is opened inside the slider, and a spring is sleeved on the surface of the rod.

[0007] Preferably, one side of the bracket has a through groove adapted to the insertion rod, and one end of the insertion rod is fixedly connected to a pull ring.

[0008] Preferably, the bracket has two limiting grooves on one side that are adapted to the pull ring, and the slide groove has two insertion holes that are adapted to the insertion rod.

[0009] Preferably, the bracket has bolt holes inside, and fixing bolts are fitted inside the bolt holes.

[0010] In summary, this utility model has the following beneficial effects:

[0011] This device utilizes a combination of a rod, slider, pusher, spring, and pull ring. Users simply pull the pull ring to move the rod inside the slider, simultaneously compressing the spring and disengaging the pull ring from the limiting groove. Pulling the pull ring downwards then moves the slider within the groove. Releasing the pull ring releases the spring, pushing the rod into another hole and engaging the pull ring in the corresponding limiting groove. This allows for rapid adjustment of the handcart's ground clearance. The device is simple in structure and easy to operate, requiring no tools. It effectively solves the problem of inconvenience caused by the fixed ground clearance of traditional handcarts on different road surfaces, significantly improving the handcart's adaptability and maneuverability in various working environments. The spring reset mechanism ensures stability after adjustment, preventing accidental displacement during use. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0013] Figure 2 This is a partial structural cross-sectional view of the present invention;

[0014] Figure 3 This is an exploded cross-sectional view of a portion of the structure of this utility model.

[0015] Reference numerals: 1. Bracket; 2. Swing arm; 3. Damping shock absorber; 4. Slide groove; 5. Slider; 6. Limiting mechanism; 601. Insert rod; 602. Push block; 603. Spring; 604. Pull ring; 7. First sliding hole; 8. Through groove; 9. Limiting groove; 10. Insertion hole; 11. Wheel; 12. Connecting shaft; 13. Bolt hole; 14. Fixing bolt. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the accompanying drawings.

[0017] Example 1:

[0018] refer to Figure 1-3 A shock-absorbing device for a handcart includes a bracket 1. A swing arm 2 is rotatably connected to the front of the bracket 1. A wheel 11 is rotatably connected to the other end of the swing arm 2. A damping shock absorber 3 is rotatably connected to the top of the swing arm 2. A groove 4 is provided on the front of the bracket 1. A slider 5 is slidably connected inside the groove 4. A limit mechanism 6 is provided inside the slider 5. A connecting shaft 12 is fixedly connected to the front of the slider 5. The other end of the damping shock absorber 3 is rotatably sleeved with the connecting shaft 12.

[0019] Specifically, a rotating shaft is fixedly installed on the back of the swing arm 2. A circular hole matching the rotating shaft is opened inside the bracket 1, allowing the rotating shaft to rotate inside the circular hole and realizing the rotational connection between the bracket 1 and the swing arm 2. A bearing is sleeved inside the wheel 11, and an axle is sleeved inside the bearing. One end of the axle is fixedly connected to the swing arm 2, allowing the wheel 11 to rotate on the surface of the axle through the bearing. A slider 5 is slidably connected inside the slide groove 4. The width of the slide groove 4 is greater than the width of the slider 5, allowing the slider 5 to slide smoothly inside the slide groove 4. By setting a limiting mechanism 6, the slider 5 can be limited and fixed inside the slide groove 4. One end of the damping shock absorber 3 is provided with a mounting hole matching the connecting shaft 12, allowing one end of the damping shock absorber 3 to rotate on the surface of the connecting shaft 12.

[0020] refer to Figure 3 The limiting mechanism 6 includes a rod 601, the surface of which is slidably sleeved with a slider 5. The slider 5 has a second sliding hole adapted to the rod 601, allowing the rod 601 to slide inside the slider 5. A push block 602 is fixedly sleeved on the surface of the rod 601. The slider 5 has a first sliding hole 7 adapted to the push block 602, allowing the push block 602 to slide inside the first sliding hole 7. A spring 603 is sleeved on the surface of the rod 601.

[0021] refer to Figure 2 and Figure 3 The bracket 1 has a through groove 8 on one side that is compatible with the insertion rod 601, so that the slider 5 drives the insertion rod 601 to slide inside the through groove 8. One end of the insertion rod 601 is fixedly connected to a pull ring 604. By setting the pull ring 604, the insertion rod 601 can be easily pulled.

[0022] refer to Figure 2 The bracket 1 has two limiting grooves 9 that are adapted to the pull ring 604 on one side, and two insertion holes 10 that are adapted to the insertion rod 601 are opened inside the slide groove 4, so that one side of the pull ring 604 is inserted into the limiting groove 9, and one end of the insertion hole 10 is inserted into the insertion hole 10, thereby effectively limiting and fixing the position of the slider 5.

[0023] refer to Figure 1 The bracket 1 has bolt holes 13 inside, and fixing bolts 14 are fitted inside the bolt holes 13, which can effectively facilitate the installation and fixing of the device to the handcart frame.

[0024] Brief description of usage: The user can pull the pull ring 604 to make the insert rod 601 slide inside the slider 5. At the same time, the insert rod 601 drives the push block 602 to compress the spring 603 through the cooperation of the first sliding hole 7, so that one side of the pull ring 604 is disengaged from the inside of the limiting groove 9. Then, pull it down to make the insert rod 601 drive the slider 5 to slide inside the sliding groove 4. Then release the pull ring 604, so that the spring 603 drives the insert rod 601 to insert into the inside of the insertion hole 10 through the push block 602. At the same time, one side of the pull ring 604 is locked into the inside of the limiting groove 9, which can effectively facilitate the adjustment of the ground clearance of the bottom of the handcart.

[0025] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A shock-absorbing device for a handcart, comprising a bracket (1), characterized in that: The front of the bracket (1) is rotatably connected to a swing arm (2), and the other end of the swing arm (2) is rotatably connected to a wheel (11). The top of the swing arm (2) is rotatably connected to a damping shock absorber (3). The front of the bracket (1) is provided with a sliding groove (4), and a slider (5) is slidably connected inside the sliding groove (4). A limit mechanism (6) is provided inside the slider (5). The front of the slider (5) is fixedly connected to a connecting shaft (12), and the other end of the damping shock absorber (3) is rotatably sleeved with the connecting shaft (12).

2. The anti-vibration device for a handcart according to claim 1, characterized in that: The limiting mechanism (6) includes a plug rod (601), the surface of the plug rod (601) is slidably sleeved with the slider (5), a push block (602) is fixedly sleeved on the surface of the plug rod (601), a first sliding hole (7) adapted to the push block (602) is opened inside the slider (5), and a spring (603) is sleeved on the surface of the plug rod (601).

3. The anti-vibration device for a handcart according to claim 2, characterized in that: The bracket (1) has a through groove (8) on one side that is compatible with the insertion rod (601), and a pull ring (604) is fixedly connected to one end of the insertion rod (601).

4. The anti-vibration device for a handcart according to claim 3, characterized in that: The bracket (1) has two limiting grooves (9) on one side that are adapted to the pull ring (604), and the slide groove (4) has two insertion holes (10) that are adapted to the insertion rod (601).

5. The anti-vibration device for a handcart according to claim 1, characterized in that: The bracket (1) has a bolt hole (13) inside, and a fixing bolt (14) is fitted inside the bolt hole (13).

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