Trolley for externally pulling support frame

Abstract

The utility model belongs to the technical field of trolleys, and particularly relates to a trolley with a support frame required to be pulled externally, which comprises a bottom plate, a damping component arranged on the outer surface of the bottom plate, universal wheels arranged on one side of the bottom of the damping component, a hook arranged on one side of the top of the damping component, and the support frame arranged on the other side of the top of the damping component. A fixing frame is arranged on the lower portion in the supporting frame, a bearing seat is arranged on one side in the fixing frame, a rotating rod is arranged on one side of the bearing seat, and a coil spring is arranged on one side of the outer surface of the rotating rod. According to the trolley, the hook, the fixing frame, the coil spring, the sleeve, the traction rope and the clamping hook are matched with one another, so that the trolley is provided with a binding structure, the problem that goods slide or fall off when the trolley moves on a bumpy road section is solved, and the goods are prevented from falling off through the cooperation of the sliding rod, the buffering cushion, the first damping block, the spring and the second damping block. The trolley has the buffering and damping functions, and the problem that the trolley jolts seriously in the transportation process is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of trolleys, in particular to a trolley requiring an external traction support frame. Background Art

[0002] A handcart is a transport vehicle that is pushed and pulled by manpower. Although handcart material handling technology continues to develop, handcarts are still used as an indispensable transport tool. Handcarts are widely used in production and life because they are low-cost, simple to maintain, easy to operate, and light in weight. They can work in places where motor vehicles are inconvenient to use. They are very convenient for transporting light items over short distances and are also widely used in mechanical processing.

[0003] Existing patent number CN219115537U discloses a trolley traction support frame, comprising a base, a universal wheel fixedly mounted at the bottom end of the base, a fixed box fixedly mounted at the bottom end of the base, a limit device disposed within the fixed box, the limit device comprising a limit block, a slide bar, a limit spring, a hinged rod, a pull rod, a connecting rod, and a brake block, the limit block being slidably connected to the interior of the fixed box, the right end of the limit block being fixedly connected to the slide bar, the slide bar passing through the fixed box and slidably connected to the fixed box, and the limit spring disposed within the fixed box. The trolley traction support frame, by providing the limit device, drives the brake block at the lower end to contact the universal wheel, thereby increasing the friction of the universal wheel, thereby achieving braking of the entire trolley, making the brake fixed and the trolley brake controllable at any time, and is easy to use. The support device improves the stopping stability of the trolley.

[0004] The existing technology has the following problems:

[0005] 1. Existing trolleys that require external traction support frames do not have a binding structure. This also results in the cargo easily sliding or falling when the staff pushes the trolley through the traction support frame on bumpy roads, increasing the difficulty of transportation and failing to meet usage requirements;

[0006] 2. The existing trolleys with external traction support frames do not have the function of buffering and shock absorption, which also causes the trolleys to be severely bumpy during transportation, causing the goods on the trolleys to be broken, increasing the transportation cost and poor practicality. Utility Model Content

[0007] In response to the shortcomings of the existing technology, the utility model provides a trolley with an external traction support frame, which solves the problem that the current structure does not have a binding structure, which also causes the goods to easily slide or fall when the staff push the trolley through the traction support frame to move on bumpy roads, and does not have a buffering and shock-absorbing function, which also causes the trolley to be easily shaken during transportation, causing the goods on the trolley to be shattered.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a trolley that requires an external traction support frame, comprising a base plate, a shock-absorbing assembly is provided on the outer surface of the base plate, a universal wheel is provided on one side of the bottom of the shock-absorbing assembly, a hook is provided on one side of the top of the shock-absorbing assembly, a support frame is provided on the other side of the top of the shock-absorbing assembly, a fixing frame is provided below the inside of the support frame, a bearing seat is provided on one side of the inside of the fixing frame, a rotating rod is provided on one side of the bearing seat, a coil spring is provided on one side of the outer surface of the rotating rod, a sleeve is provided on the rotating rod on one side of the coil spring, a traction rope is provided on the outer surface of the sleeve, and a hook is provided at the front end of the traction rope.

[0009] As an optimal technical solution of the present invention, the shock absorbing assembly includes a buffer frame, a sliding rod is provided on one side of the interior of the buffer frame, a buffer pad is provided on the top of the outer surface of the sliding rod, a first damping block is provided at the bottom of the buffer pad of the sliding rod, a spring is provided at the bottom of the first damping block, and a second damping block is provided at the bottom of the spring.

[0010] As a preferred technical solution of the present invention, the sliding rods are mounted on the buffer frame through a fixed connection, there are several groups of the sliding rods, and the sliding rods are arranged in equidistant straight lines.

[0011] As a preferred technical solution of the present invention, the top end of the spring is fixedly connected to the first damping block, the bottom end of the spring is fixedly connected to the second damping block, the first damping block and the second damping block are both slidably connected to the outer surface of the slide rod, and the two ends of the buffer pad are respectively installed on the buffer frame and the first damping block through fixed connections.

[0012] As a preferred technical solution of the present invention, the rotating rod is installed on the bearing seat through a rotating connection. There are two groups of bearing seats, and the two groups of bearing seats are arranged corresponding to each other in the middle of the rotating rod.

[0013] As a preferred technical solution of the present invention, the coil spring is mounted on the rotating rod through a fixed connection, and the size of the coil spring is adapted to the size of the fixing frame.

[0014] As a preferred technical solution of the present invention, one end of the traction rope is fixedly connected to the sleeve, and the other end of the traction rope passes through the fixing frame and is connected to the hook, and the position of the hook is arranged to correspond to the position of the hook.

[0015] Compared with the prior art, the present invention provides a trolley with an external traction support frame, which has the following beneficial effects:

[0016] 1. The trolley which requires an external traction support frame is provided with a hook, a fixing frame, a coil spring, a sleeve, a traction rope and a hook. When placing the goods on the bottom plate, the hook on the traction rope can be pulled to tie it to the hook, so that the coil spring on the rotating rod is deformed by force, so that the traction rope can be extended from the inside of the fixing frame to perform a binding and limiting operation on the goods. After the traction rope is used up, the traction rope can be automatically reeled on the sleeve by the elastic force of the coil spring itself. This design enables the trolley to have a binding structure, avoids the problem of goods sliding or falling when the staff pushes the trolley to move on a bumpy road, reduces the difficulty of transportation, and meets the use requirements.

[0017] 2. The trolley with an external traction support frame is provided with a sliding rod, a buffer pad, a first damping block, a spring and a second damping block. When facing bumps generated during transportation, the second damping block is first squeezed by the vertical displacement of the bottom plate along the sliding rod, and then the second damping block is driven to squeeze the spring, and the first damping block is squeezed into the buffer pad. At the same time, the spring and the buffer pad are squeezed and deformed, which can play a multiple buffering and shock-absorbing role, so as to weaken and reduce the impact force and amplitude of the bumps, thereby improving the buffering and shock-absorbing effect of the trolley. This design enables the trolley to have the function of buffering and shock-absorbing, avoids the problem of serious bumps of the trolley during transportation, reduces the cost of transportation, and is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic cross-sectional view of the buffer frame of the utility model;

[0020] Figure 3 for Figure 2 A magnified view of the structure at center A;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the support frame of the utility model;

[0022] Figure 5 This is a schematic diagram of the installation structure of the rotating rod of the utility model.

[0023] In the figure: 1. Base plate; 2. Shock-absorbing assembly; 201. Buffer frame; 202. Sliding rod; 203. Buffer pad; 204. First damping block; 205. Spring; 206. Second damping block; 3. Universal wheel; 4. Hook; 5. Support frame; 6. Fixed frame; 7. Bearing seat; 8. Rotating rod; 9. Coil spring; 10. Sleeve; 11. Traction rope; 12. Hook. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Reference Figure 1 、 Figure 4 and Figure 5 The utility model provides an embodiment: a trolley with an external traction support frame, comprising a bottom plate 1, a shock-absorbing assembly 2 is provided on the outer surface of the bottom plate 1, a universal wheel 3 is provided on one side of the bottom of the shock-absorbing assembly 2, a hook 4 is provided on one side of the top of the shock-absorbing assembly 2, a support frame 5 is provided on the other side of the top of the shock-absorbing assembly 2, a fixing frame 6 is provided below the support frame 5, a bearing seat 7 is provided on one side of the fixing frame 6, a rotating rod 8 is provided on one side of the bearing seat 7, a coil spring 9 is provided on one side of the outer surface of the rotating rod 8, a sleeve 10 is provided on the outer surface of the rotating rod 8 at one side of the coil spring 9, a traction rope 11 is provided on the outer surface of the sleeve 10, and a hook 12 is provided at the front end of the traction rope 11; the rotating rod 8 is installed on the bearing seat 7 through a rotating connection, and there are two groups of bearing seats 7, and the two groups of bearing seats 7 are arranged corresponding to each other at the middle part of the rotating rod 8;

[0026] Specifically, the bearing seat 7 facilitates supporting and limiting the rotating rod 8, thereby improving the stability of the rotating rod 8 during rotation.

[0027] Reference Figure 1 、 Figure 2 and Figure 3 The shock absorbing assembly 2 includes a buffer frame 201, a slide bar 202 is provided on one side of the inner side of the buffer frame 201, a buffer pad 203 is provided on the top of the outer surface of the slide bar 202, a first damping block 204 is provided at the bottom of the buffer pad 203 of the slide bar 202, a spring 205 is provided at the bottom of the first damping block 204, and a second damping block 206 is provided at the bottom of the spring 205; the slide bar 202 is fixedly connected to the buffer frame 201, and the number of the slide bar 202 is several groups, and the slide bar 202 is arranged in an equidistant straight line;

[0028] Specifically: it is convenient to limit the bottom plate 1 through the sliding rod 202, thereby improving the stability of the bottom plate 1 during vertical displacement.

[0029] Reference Figure 2 and Figure 3 The top end of the spring 205 is fixedly connected to the first damping block 204, and the bottom end of the spring 205 is fixedly connected to the second damping block 206. The first damping block 204 and the second damping block 206 are both slidably connected to the outer surface of the slide bar 202. The two ends of the buffer pad 203 are respectively fixedly mounted on the buffer frame 201 and the first damping block 204;

[0030] Specifically, the spring 205 and the buffer pad 203 are squeezed and deformed, which can play a role of multiple buffering and shock absorption, so as to weaken and reduce the impact force and amplitude of the bumps, thereby improving the buffering and shock absorption effect of the cart.

[0031] Reference Figure 1 、 Figure 4 and Figure 5 , the coil spring 9 is mounted on the rotating rod 8 through a fixed connection, and the size of the coil spring 9 is adapted to the size of the fixing frame 6; one end of the traction rope 11 is fixedly connected to the sleeve 10, and the other end of the traction rope 11 passes through the fixing frame 6 and is connected to the hook 12, and the position of the hook 12 is set corresponding to the position of the hook 4;

[0032] Specifically, the hook 12 is pulled and tied to the hook 4, so that the coil spring 9 is deformed by force, so that the traction rope 11 extends from the inside of the fixing frame 6, and the cargo is bound and limited, thereby improving the stability and firmness of the cargo.

[0033] The working principle and use process of the utility model are as follows: when placing goods on the base plate 1, the hook 12 on the traction rope 11 can be pulled to tie it to the hook 4, so that the coil spring 9 on the rotating rod 8 is deformed by force, so that the traction rope 11 extends from the inside of the fixing frame 6 on the support frame 5, and the goods are tied and limited. After the traction rope 11 is used, the elastic force of the coil spring 9 in the fixing frame 6 is used to automatically reel the traction rope 11 on the sleeve 10;

[0034] When facing the bumps generated during transportation, the bottom plate 1 is first vertically displaced along the sliding rod 202 in the buffer frame 201 to squeeze the second damping block 206 in the shock absorbing assembly 2, and then the second damping block 206 is driven to squeeze the spring 205, and the first damping block 204 is driven to squeeze the buffer pad 203. At the same time, the spring 205 and the buffer pad 203 are squeezed and deformed, which can play a multiple buffering and shock-absorbing role, so as to weaken and reduce the impact force and amplitude of the bumps, thereby improving the buffering and shock-absorbing effect of the cart.

[0035] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A trolley with an external traction support frame, comprising a bottom plate (1), characterized in that: The outer surface of the bottom plate (1) is provided with a shock absorbing component (2), a universal wheel (3) is provided on one side of the bottom of the shock absorbing component (2), a hook (4) is provided on one side of the top of the shock absorbing component (2), a support frame (5) is provided on the other side of the top of the shock absorbing component (2), a fixing frame (6) is provided inside and below the support frame (5), a bearing seat (7) is provided on one side of the fixing frame (6), a rotating rod (8) is provided on one side of the bearing seat (7), a coil spring (9) is provided on one side of the outer surface of the rotating rod (8), a sleeve (10) is provided on one side of the coil spring (9), a traction rope (11) is provided on the outer surface of the sleeve (10), and a hook (12) is provided at the front end of the traction rope (11).

2. The trolley with an external traction support frame according to claim 1, characterized in that: The shock absorbing assembly (2) comprises a buffer frame (201), a sliding rod (202) is provided on one side of the interior of the buffer frame (201), a buffer pad (203) is provided on the top of the outer surface of the sliding rod (202), a first damping block (204) is provided at the bottom of the buffer pad (203) on the sliding rod (202), a spring (205) is provided at the bottom of the first damping block (204), and a second damping block (206) is provided at the bottom end of the spring (205).

3. The trolley with an external traction support frame according to claim 2, characterized in that: The sliding rods (202) are mounted on the buffer frame (201) through a fixed connection. The sliding rods (202) are arranged in a plurality of groups and are arranged in an equidistant straight line.

4. The trolley with an external traction support frame according to claim 2, characterized in that: The top end of the spring (205) is fixedly connected to the first damping block (204), and the bottom end of the spring (205) is fixedly connected to the second damping block (206). The first damping block (204) and the second damping block (206) are both slidably connected to the outer surface of the sliding rod (202). The two ends of the buffer pad (203) are respectively installed on the buffer frame (201) and the first damping block (204) through fixed connections.

5. The trolley with an external traction support frame according to claim 1, characterized in that: The rotating rod (8) is mounted on the bearing seat (7) through a rotating connection. There are two groups of bearing seats (7), and the two groups of bearing seats (7) are arranged corresponding to each other in the middle of the rotating rod (8).

6. The trolley with an external traction support frame according to claim 1, characterized in that: The coil spring (9) is mounted on the rotating rod (8) through a fixed connection, and the size of the coil spring (9) is adapted to the size of the fixing frame (6).

7. The trolley with an external traction support frame according to claim 1, characterized in that: One end of the traction rope (11) is fixedly connected to the sleeve (10), and the other end of the traction rope (11) passes through the fixing frame (6) and is connected to the hook (12), and the position of the hook (12) is arranged to correspond to the position of the hook (4).

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