Air bag type traction booster

By connecting the differential reducer of the airbag-type booster to the moving wheels, and the air pump to the airbag, the lifting plate constraint design, combined with gears and constraint linkages, solves the problems of poor booster stability and limited lifting height range, and achieves stable and flexible lifting and moving.

CN224117355UActive Publication Date: 2026-04-14YITUI MECHANICAL EQUIP (SUZHOU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YITUI MECHANICAL EQUIP (SUZHOU) CO LTD
Filing Date
2025-06-12
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing boosters have a high center of gravity, poor stability, and a limited range of airbag lifting height due to the need for a fixed end in hydraulic or electric drive equipment.

Method used

It adopts an airbag design, which is connected to the moving wheels through a differential reducer. The air pump is connected to the airbag, and the lifting plate constrains the expansion of the airbag. Combined with the gear and constraint linkage design, it can achieve stable lifting and moving and expand the lifting height range.

Benefits of technology

It achieves stable movement with a low center of gravity, simple operation, safety, reliability, and no pollution, and expands the range of airbag lifting height, improving the stability and flexibility of the booster.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an air bag type traction booster, which relates to the technical field of boosters, aims to solve the technical problem of poor stability of boosters, and comprises a boosting vehicle, two moving wheels are mounted on one side of the boosting vehicle, a steering wheel is connected to the other side of the boosting vehicle, a control handle is movably connected to the boosting vehicle, and the control handle is movably connected to the boosting vehicle. A cover plate is fixed to the top of the boosting vehicle, a differential speed reducer and an air pump are arranged in the boosting vehicle, two side plates are installed at the top of the cover plate, a plurality of lifting plates are rotationally connected between the two side plates, and an air bag is arranged in the center of one end of each lifting plate. According to the utility model, the booster can be stably moved through the connection of the differential speed reducer and the moving wheels, and the booster has the advantages of low gravity center, simplicity in operation, safety, reliability, low noise, no pollution and the like through the connection design of the air pump and the air bag and the position constraint design of the lifting moving plate on the same side.
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Description

Technical Field

[0001] This utility model relates to the field of booster technology, and more specifically, to an airbag-type traction booster. Background Technology

[0002] Boosters are devices used for short-distance cargo handling in factories, warehouses, and other indoor / outdoor locations. Most existing boosters rely on hydraulic or electric drives to assist in propulsion and movement. Both hydraulic and electric drives require a sufficient initial height to accommodate the fixed end of the drive mechanism (such as the fixed end of a cylinder or hydraulic rod). However, longer drive distances necessitate longer fixed ends, resulting in a high center of gravity at the support point and poor stability. Therefore, we propose an airbag-type traction booster. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide an airbag-type traction booster to solve the technical problem of poor stability of current boosters.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an airbag-type traction booster, including a booster trolley, two movable wheels installed on one side of the booster trolley, a steering wheel connected to the other side of the booster trolley, a control handle movably connected to the booster trolley, a cover plate fixed to the top of the booster trolley, a differential reducer and an air pump installed inside the booster trolley, two side plates installed on the top of the cover plate, a plurality of lifting plates rotatably connected between the two side plates, and an airbag is provided at the center of one end of the plurality of lifting plates.

[0005] Preferably, the differential reducer is connected to the axle of the moving wheel, the air pump is connected to the air bag, a storage battery is provided on one side of the air pump, a fixing plate is installed between the air bag and the plug, and a connection point is provided on the fixing plate.

[0006] Preferably, the lifting plate is assembled from a strip shell and a plug, one end of the plug is provided with a tenon for inserting into the strip shell, and a stable structure is provided between two adjacent lifting plates on the same side.

[0007] Preferably, the stabilizing structure includes two gears, the rack housing has a side opening for the gears to pass through, the part through which the gears pass is engaged with a rack, and the rack is fixed to the tenon.

[0008] Preferably, the gear is rotatably connected to an adapter plate, and the other end of the adapter plate is rotatably connected to the outer side of the strip shell.

[0009] Preferably, a constraint link is movably installed between the two adapter plates, and the constraint link constrains the two gears to remain in a meshed state.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. This utility model enables stable movement of the booster by connecting the differential reducer and the moving wheel. Furthermore, the connection design between the air pump and the airbag, combined with the position constraint design of the lifting plate on the same side, allows the airbag to move stably up and down when it inflates due to the constraint of the lifting plate. The lifting and moving through the airbag has the advantages of low center of gravity, simple operation, safety and reliability, low noise and no pollution, thus solving the problem of poor booster stability.

[0012] 2. This utility model also improves the lifting height range by changing the lifting plate to an extendable design. In addition, the design of the gear and rack constraint and the constraint linkage to keep the gear always engaged can further ensure that the airbag will not deviate during the lifting process. This achieves the effect of increasing the boost range without increasing the space volume, and further solves the problem of the small lifting height range of the airbag. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the other axial side structure of the present invention with the cover plate removed;

[0015] Figure 3 This is a schematic diagram of the connection structure of the airbag in this utility model;

[0016] Figure 4 This is a half-sectional view of the lifting plate in the extended and unfolded state in this utility model.

[0017] Figure 5 This is a schematic diagram of the other axial half-section structure of the lifting plate in the extended and unfolded state in this utility model.

[0018] The labels in the diagram are as follows: 1. Pushcart; 2. Moving wheel; 3. Steering wheel; 4. Control handle; 5. Cover plate; 6. Differential reducer; 7. Air pump; 8. Side plate; 9. Lifting plate; 10. Airbag; 11. Stabilizing structure; 12. Fixing plate; 13. Connection point;

[0019] 901. Shell; 902. Plug; 903. Tenon;

[0020] 111. Gear; 112. Rack; 113. Adapter plate; 114. Constraint link. Detailed Implementation

[0021] like Figures 1 to 5As shown, this utility model relates to an airbag-type traction booster, comprising a booster 1. Two movable wheels 2 are mounted on one side of the booster 1, connected by an axle. A steering wheel 3 is connected to the other side of the booster 1. A control handle 4 is movably connected to the booster 1, which can control the angle rotation of the steering wheel 3. Various control switches are also provided on the control handle 4. A cover plate 5 is fixed to the top of the booster 1. A differential reducer 6 and an air pump 7 are installed inside the booster 1. The differential reducer 6 is connected to the axle of the movable wheels 2, and the air pump 7 is connected to the airbag 10 and is equipped with a pressure regulator. The valve and air pump 7 are equipped with a battery on one side. The top of the cover plate 5 is equipped with two side plates 8. Several lifting plates 9 are rotatably connected between the two side plates 8. An air bag 10 is provided at the center of one end of the multiple lifting plates 9. The air bag 10 is connected to the air pump 7 by return and intake pipes to achieve lifting. Lifting can also be achieved by using an intake pipe and releasing air. A fixing plate 12 is installed between the air bag 10 and the plug 902. A connection 13 is provided on the fixing plate 12. The connection 13 is mainly used to fix the connection part of the external tooling. It can be adjusted according to the actual situation.

[0022] Working principle: When using the booster, follow these steps: slow down when approaching the cargo area; check for safety in the surroundings; adjust the position of the airbag-type traction booster, lowering the airbag 10 to its lowest position, ensuring proper docking of the airbag-type traction booster with the cargo fixture; then, using the control lever 4, raise the airbag 10 until the connection point 13 is fully in contact with the fixture connection; slowly start the airbag-type traction booster to propel the cargo; if insufficient thrust is encountered, adjust the lifting force of the airbag 10 using the pressure regulating valve; after the cargo is transported to its destination and adjusted to a suitable position, gradually reduce the air supply speed, lower the airbag 10, disconnect the booster device, and separate the airbag-type traction booster from the cargo.

[0023] The height of the booster lift is limited by the length of the lifting plate 9. To increase the boost range, a portion of the bottom of the airbag 10 is fixed to the top of the cover plate 5. The lifting plate 9 is assembled from a strip shell 901 and a plug 902. One end of the plug 902 is provided with a tenon 903 for inserting into the strip shell 901. A stabilizing structure 11 is provided between two adjacent lifting plates 9 on the same side. The stabilizing structure 11 includes two gears 111. The strip shell 901 has a side opening for the gears 111 to pass through. The part through which the gears 111 pass is engaged with a rack 112. The rack 112 is fixed to the tenon 903. The gears 111 are rotatably connected to a transition plate 113. The other end of the transition plate 113 is rotatably connected to the outside of the strip shell 901. A constraint link 114 is movably installed between the two transition plates 113. The constraint link 114 constrains the two gears 111 to maintain a meshed state.

[0024] Working principle: When the airbag 10 is inflated, the lifting plate 9 will rise along with it during the boost. When the lifting plate 9 rises to a certain extent, it will unfold to increase the range of its boost. At the same time, the gear 111, rack 112 and constraint link 114 are meshed and constrained to ensure that the lifting plates 9 on the same side will remain parallel and will not cause the part supported by the airbag 10 to tilt.

[0025] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A pneumatic traction booster, characterized in that, The device includes a pushcart (1), which has two movable wheels (2) installed on one side and a steering wheel (3) connected to the other side. A control handle (4) is movably connected to the pushcart (1). A cover plate (5) is fixed on the top of the pushcart (1). A differential reducer (6) and an air pump (7) are installed inside the pushcart (1). Two side plates (8) are installed on the top of the cover plate (5). Several lifting plates (9) are rotatably connected between the two side plates (8). An airbag (10) is provided at the center of one end of each of the lifting plates (9).

2. The airbag-type traction booster according to claim 1, characterized in that, The differential reducer (6) is connected to the axle of the moving wheel (2), the air pump (7) is connected to the air bag (10), a storage battery is provided on one side of the air pump (7), a fixing plate (12) is installed between the air bag (10) and the plug (902), and a connection point (13) is provided on the fixing plate (12).

3. The airbag-type traction booster according to claim 2, characterized in that, The lifting plate (9) is assembled from a strip shell (901) and a plug (902). One end of the plug (902) is provided with a tenon (903) for inserting into the strip shell (901). A stable structure (11) is provided between two adjacent lifting plates (9) on the same side.

4. The airbag-type traction booster according to claim 3, characterized in that, The stabilizing structure (11) includes two gears (111), and the strip shell (901) has a side opening for the gears (111) to pass through. The part through which the gears (111) pass is engaged with a rack (112), and the rack (112) is fixed to the tenon (903).

5. The airbag-type traction booster according to claim 4, characterized in that, The gear (111) is rotatably connected to a transition plate (113), and the other end of the transition plate (113) is rotatably connected to the outside of the strip shell (901).

6. The airbag-type traction booster according to claim 5, characterized in that, A constraint link (114) is movably installed between the two adapter plates (113), and the constraint link (114) constrains the two gears (111) to remain in a meshed state.