A four-bag synchronous inflation jack

Abstract

This utility model discloses a four-airbag synchronous inflation jack, relating to the technical field of inflation jacks. It includes an airbag pack, braided straps, clamps, an air hose, and a second valve core. An air intake mechanism is provided on the side of the airbag pack, comprising a connector, a pressure relief valve, a first air nozzle, and a connecting seat. The connecting seat and pressure relief valve are installed above the connector, and the first air nozzle is located on the side of the connector. The four symmetrically fixed braided straps on the side of the airbag pack provide stable carrying and storage points, allowing for easy carrying by a single person. This completely solves the problem of inconvenience in outdoor emergency and mobile maintenance caused by the lack of portable structure in existing equipment, significantly expanding the applicable scenarios of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of inflatable jack technology, specifically a four-airbag synchronous inflatable jack. Background Technology

[0002] Inflatable support devices are widely used in practical scenarios such as bed height adjustment, mattress firmness adjustment, and table horizontal support due to their core advantages of being portable, lightweight, easy to operate, and adaptable to various load-bearing scenarios. As usage needs upgrade, multi-airbag inflatable support devices are gradually becoming the mainstream choice in the market due to their stronger load-bearing capacity and more balanced force distribution. However, existing multi-airbag inflatable support devices still have many technical defects and cannot fully meet the needs of efficient and safe use. Taking the "High-Safety Inflatable Jack" with application number CN201710871776.4 as an example, the upper airbag of this device is designed as a bladder structure with an open bottom. The top is integrated with an integral fixed seat. The upper end of the fixed seat has a slot, and the slot cooperates with the block at the bottom of the support seat to achieve stable assembly of the support seat. Its core advantage lies in the safety design: by setting a first one-way valve in the air inlet of the baffle and a second one-way valve in the air outlet, the inflation process strictly follows the sequence of "lower airbag → connecting airbag → upper airbag", which effectively avoids excessive local pressure. When deflation, it is also carried out in this order and smoothly, which can prevent the supported object from falling rapidly and significantly improve the safety of use. However, the device has obvious shortcomings in portability: the overall structure includes components such as an exhaust gas treatment box made of iron box material, multi-layer inflatable bladders and base, resulting in a large size and heavy weight; at the same time, it does not have auxiliary structures such as woven straps for easy storage or carrying, making it inconvenient to operate when carried by a single person, and difficult to adapt to scenarios with high portability requirements such as outdoor emergency and mobile repair. Based on this, this solution proposes "a connected four-airbag synchronous inflation jack" to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to provide a four-airbag synchronous inflation jack that can be connected to solve the problem of the obvious portability shortcomings of existing equipment on the market as mentioned in the background.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a four-airbag synchronous inflation jack, comprising an airbag bag, a braided strap, a clamp, an air tube, and a second valve core; An air intake mechanism is provided on the side of the airbag. The air intake mechanism includes a connector, a pressure relief valve, a first air nozzle, and a connecting seat. The connecting seat and the pressure relief valve are installed above the connector, and the first air nozzle is located on the side of the connector.

[0005] As a preferred embodiment of this utility model, the airbag is fixedly connected to the side with a woven strap, and there are four symmetrically distributed woven straps in total; By adopting the above technical solution, four symmetrically distributed woven straps are fixed on the side of the airbag pack, which not only provides a stable carrying support for the entire interconnected four-airbag synchronous inflation jack, but also facilitates the binding and organization of the airbag pack during storage. A single person can easily carry and operate the equipment, which is perfectly suitable for outdoor emergency rescue, vehicle mobile repair and other scenarios with high portability requirements. It effectively solves the problem of inconvenience caused by the lack of portable auxiliary structures in existing multi-airbag inflation equipment, and significantly improves the applicability of the equipment in mobile scenarios.

[0006] As a preferred technical solution of this utility model, a positioning groove is formed on the upper surface of the airbag, and a total of eighty-one positioning grooves are arranged in a rectangular uniform arrangement. A positioning bead is fixedly connected to the lower surface of the airbag, and the positioning bead corresponds to the positioning groove in sequence. By adopting the above technical solution, eighty-one rectangularly arranged positioning grooves are opened on the upper surface of the airbag, and positioning beads corresponding to the positioning grooves are fixed on the lower surface of the airbag. On the one hand, this enhances the stability of the fit between the airbag and the bottom of the supported object, preventing displacement of the supported object due to slippage of the contact surface during support. On the other hand, it improves the firmness of the contact between the airbag and the ground. Especially when used on uneven ground, the cooperation between the positioning beads and the positioning grooves can fill tiny gaps, further ensuring the safety of the equipment during the load-bearing process, reducing the risk of the supported object tipping over, and adapting to more complex support environments.

[0007] As a preferred technical solution of this utility model, the second air nozzle is connected to the diagonal position on one side of the airbag, the second air nozzle has a straight-through structure, and the surface of the second air nozzle is provided with external threads. By adopting the above technical solution, the second air nozzle, which connects to the diagonal position on one side of the airbag pack, is designed as a straight-through structure. This minimizes gas flow resistance, allowing airflow to be delivered quickly and evenly to each airbag pack through the second air nozzle. This provides a key structural foundation for the simultaneous inflation of the four airbags and effectively improves inflation efficiency. At the same time, the external threads on the surface of the second air nozzle can be adapted to various specifications of air tube interfaces on the market, eliminating the need for additional custom-made connectors. This significantly improves the universality and flexibility of the equipment with external accessories, reducing user costs and adaptation difficulties.

[0008] As a preferred technical solution of this utility model, the second air nozzle is threadedly connected to one end of the air pipe, and a clamp is provided at the connection between the air pipe and the second air nozzle. The other end of the air pipe is fitted with a connecting seat, and the connecting seat is provided with the same clamp at the connection between the air pipe and the connecting seat. The side of the clamp is fastened by bolts. The above technical solution employs a threaded connection between the air pipe and the second air nozzle, as well as the connecting seat. Clamps are installed at the connections between the air pipe and the second air nozzle, and between the air pipe and the connecting seat, and are secured with bolts on the sides of the clamps, forming a dual-fixing structure of "threaded seal + clamp locking." This structure not only enhances the sealing of the connections between the air pipe and each component, preventing air leakage due to pressure impact during inflation and ensuring the pressure stability of simultaneous inflation of the four air bags, but also ensures connection strength through bolt tightening, preventing loosening or detachment after long-term use or frequent disassembly. Furthermore, the detachable nature of the bolted connection facilitates future replacement and maintenance of the air pipe, extending the equipment's service life.

[0009] As a preferred technical solution of this utility model, four connecting seats are evenly fixed on the upper surface of the connector, the pipelines between the connecting seats are connected in parallel, the upper surface of the connector is fixedly connected to a pressure relief valve, the pressure relief valve is movably connected to a first valve core, a second spring is fitted on the outside of the first valve core, and the connecting seat pipelines are connected in series with the pressure relief valve pipelines. By adopting the above technical solution, four connecting seats are evenly fixed on the upper surface of the connector and the pipeline is designed in parallel. This ensures that the airflow is evenly distributed to each connecting seat after passing through the connector, thereby achieving synchronous inflation of the four airbags with consistent pressure. This avoids the equipment tilting due to uneven inflation and improves load-bearing stability. At the same time, the pressure relief valve fixed on the upper surface of the connector is connected in series with the connecting seat pipeline, and a second spring is fitted on the outside of the first valve core that is movably connected inside the pressure relief valve, forming an automatic pressure relief protection structure. When the air pressure in the pipeline exceeds the safety threshold, the air pressure will push the first valve core to compress the second spring, opening the pressure relief channel to release excess gas and prevent damage to the airbags or impact on the supported object due to overpressure. During deflation, this structure can also control the depressurization speed through the spring force to prevent the supported object from falling rapidly, thus comprehensively improving the safety of the inflation and deflation process.

[0010] As a preferred technical solution of this utility model, the first air nozzle is fixedly connected to the center line of the side of the connector, the outer surface of the first air nozzle is provided with threads, and the second valve core is movably connected inside the first air nozzle, and the second valve core is fitted with a first spring on the outside. Using the above technical solution, a first air nozzle is fixedly connected to the center line of the connector side, and the outer surface of the first air nozzle is threaded, which facilitates quick docking with external inflation equipment and can adapt to various specifications of inflation interfaces, reducing the difficulty of interface adaptation during equipment use. At the same time, a first spring is fitted on the outside of the second valve core that is movably connected inside the first air nozzle, forming a one-way sealing structure. When inflating, the external air pressure pushes the second valve core to compress the first spring, allowing the gas to enter the connector smoothly. After inflation stops, the first spring resets and pushes the second valve core to close, preventing gas backflow in the pipeline, ensuring the pressure stability of the four airbags, and avoiding support failure due to air leakage.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. With the help of four symmetrically fixed woven straps on the side of the airbag, the device provides a stable handle and storage support, making it easy for a single person to carry. This completely solves the problem of inconvenience in carrying the existing equipment for outdoor emergency and mobile maintenance due to the lack of a portable structure, and greatly expands the range of applicable scenarios for the equipment.

[0012] 2. On the one hand, the eighty-one rectangular positioning grooves on the upper surface of the airbag precisely match the corresponding positioning beads on the lower surface, which not only enhances the fit with the supported object, but also improves the firmness of contact with the ground, effectively preventing displacement and slippage during the support process; on the other hand, the four connecting seats are evenly distributed on the connector and the pipelines are connected in parallel, ensuring that the four airbags are inflated synchronously and the pressure is balanced, preventing the equipment from tilting due to uneven inflation, and further enhancing the load-bearing stability.

[0013] 3. The straight-through structure of the second air nozzle reduces gas flow resistance. Its external thread design echoes that of the first air nozzle, making it compatible with various specifications of air hoses and inflation devices on the market. No special accessories are required, reducing user adaptation costs and improving the versatility of the device in different usage scenarios.

[0014] 4. The dual structure of "threaded connection + clamp bolt fastening" for the air pipe, the second air nozzle, and the connecting seat not only eliminates the risk of air leakage during inflation and ensures stable air pressure, but also facilitates the replacement and maintenance of the air pipe in the future through the detachable bolt design, thus extending the overall service life of the equipment.

[0015] 5. During the inflation stage, the one-way structure formed by the second valve core and the first spring inside the first air nozzle can prevent gas backflow and ensure stable air bag pressure. During the deflation and overpressure protection stage, the pressure relief valve on the connector can automatically release overpressure through the cooperation of the first valve core and the second spring to avoid damage to the air bag or impact from the support object. At the same time, it controls the deflation speed to prevent the supported object from falling rapidly, forming a full-process safety protection of "inflation to prevent backflow - overpressure to prevent damage - deflation to prevent fall". Attached Figure Description

[0016] Figure 1 This is a side view of the structure of this utility model; Figure 2 This is a side view of the airbag structure of this utility model; Figure 3 This is a schematic diagram of the structure of the second air nozzle and positioning bead of this utility model; Figure 4 This is a side view of the clamp structure of this utility model; Figure 5 This is a schematic diagram of the connecting seat and the first valve core structure of this utility model; Figure 6This is a schematic diagram of the first air nozzle and the first spring structure of this utility model; Figure 7 This is a schematic diagram of the structure of the first valve core and the second spring of this utility model.

[0017] In the diagram: 1. Airbag pack; 2. Braided strap; 3. Clamp; 4. Air tube; 5. Connector; 6. Pressure relief valve; 7. First air nozzle; 8. Positioning groove; 9. First spring; 10. Second air nozzle; 11. Positioning bead; 12. Connecting seat; 13. First valve core; 14. Second spring; 15. Second valve core. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-7 The present invention provides a four-airbag synchronous inflation jack, comprising an airbag bag 1, a braided strap 2, a clamp 3, an air tube 4, a connector 5, a pressure relief valve 6, a first air nozzle 7, a positioning groove 8, a first spring 9, a second air nozzle 10, a positioning bead 11, a connecting seat 12, a first valve core 13, a second spring 14, and a second valve core 15. An air intake mechanism is provided on the side of the airbag 1. The air intake mechanism includes a connector 5, a pressure relief valve 6, a first air nozzle 7, and a connecting seat 12. The connecting seat 12 and the pressure relief valve 6 are installed above the connector 5, and the first air nozzle 7 is located on the side of the connector 5.

[0020] The airbag pack 1 is fixedly connected to four symmetrically distributed woven straps 2 on the side. This design provides a stable carrying support for the interconnected four-airbag synchronous inflation jack on the one hand, and makes it easy to tie and organize the airbag pack 1 when storing it. It can be carried by a single person and is perfectly adapted to the portability needs of outdoor emergency rescue, vehicle mobile repair and other scenarios. It effectively solves the problem of inconvenience caused by the lack of portable auxiliary structure in existing multi-airbag inflation equipment, and significantly improves the applicability of the equipment in mobile scenarios. The upper surface of the airbag 1 has eighty-one rectangular positioning grooves 8 evenly arranged, and the lower surface is fixedly connected with positioning beads 11 that correspond one-to-one with the positioning grooves 8. This structure can enhance the contact stability between the airbag 1 and the bottom of the supported object, and prevent the supported object from shifting due to slippage of the contact surface during the support process; it can also improve the contact firmness between the airbag 1 and the ground. When used on uneven ground, the cooperation between the positioning beads 11 and the positioning grooves 8 can fill the tiny gaps, further ensuring the load-bearing safety of the equipment, reducing the risk of the supported object tipping over, and adapting to more complex support environments. The second air nozzle 10 is connected to one diagonal position on one side of the airbag pack 1. This air nozzle adopts a straight-through structure and is equipped with an external thread. The straight-through design can minimize the gas flow resistance and ensure that the airflow is delivered quickly and evenly to each airbag pack 1, providing key structural support for the simultaneous inflation of the four airbags and effectively improving inflation efficiency. The external thread structure can be adapted to various specifications of air tube 4 interfaces on the market, without the need for additional customized special connectors, which greatly improves the universality and flexibility of the equipment and external accessories, and reduces user costs and adaptation difficulty. The second air nozzle 10 is threaded to one end of the air tube 4, and the other end of the air tube 4 is fitted with a connecting seat 12. Both connections are equipped with clamps 3 and are secured by side bolts. This design forms a double fixing structure of "threaded seal + clamp 3 locking". This not only strengthens the sealing of the connection and prevents air leakage due to air pressure impact during inflation, but also ensures the pressure stability of the four air bags during synchronous inflation. The bolt fastening ensures the connection strength and prevents loosening or falling off after long-term use or frequent disassembly. At the same time, the detachability of the bolt connection facilitates the replacement and maintenance of the air tube 4 in the future, extending the service life of the equipment. Four connecting seats 12 are evenly fixed on the upper surface of the connector 5, and the pipeline adopts a parallel design to ensure that the airflow is evenly distributed to each connecting seat 12 after passing through the connector 5, so as to realize the synchronous inflation of the four airbags 1 and the consistent pressure, avoiding the equipment tilting due to uneven inflation, and improving the load-bearing stability. The pressure relief valve 6 fixed on the upper surface of the connector 5 is connected in series with the pipeline of the connecting seat 12. The first valve core 13 is movably connected inside the pressure relief valve 6, and the second spring 14 is fitted on the outside, forming an automatic pressure relief protection structure: when the air pressure in the pipeline exceeds the safety threshold, the air pressure pushes the first valve core 13 to compress the second spring 14, opening the pressure relief channel to release excess gas, preventing overpressure damage to the airbag 1 or impact on the supported object; when deflation, the spring force can control the pressure relief speed to prevent the supported object from falling rapidly, thus comprehensively improving the safety of the inflation and deflation process. The first air nozzle 7 is fixedly connected to the center line of the side of the connector 5. The outer surface of the connector is threaded, and the second valve core 15, which is movably connected inside, is fitted with a first spring 9. The external thread design facilitates quick docking with external inflation equipment such as an air pump and is compatible with various inflation interfaces, reducing the difficulty of interface adaptation. The second valve core 15 and the first spring 9 form a one-way sealing structure: when inflating, the external air pressure pushes the second valve core 15 to compress the first spring 9, and the gas smoothly enters the connector 5. After inflation stops, the first spring 9 returns to its original position and pushes the second valve core 15 to close, preventing the gas in the pipeline from flowing back and ensuring the pressure stability of the four airbags 1, avoiding support failure due to air leakage.

[0021] Working principle: When using a four-airbag synchronous inflation jack, the external inflation device is connected through the first air nozzle 7. The air pressure pushes the internal second valve core 15 to compress the first spring 9 to open the air intake channel. After the gas enters the connector 5, it is evenly distributed to each air pipe 4 through the four parallel connecting seats 12, and then flows quickly into the four airbags 1 through the straight-through second air nozzle 10, realizing synchronous inflation and balanced pressure rise. After inflation stops, the first spring 9 returns to its original position and pushes the second valve core 15 to close, preventing gas backflow and maintaining stable pressure in the airbags 1. After inflation, the airbag 1 fits against the bottom of the supported object with the positioning groove 8 on the upper surface and engages with the ground with the positioning bead 11 on the lower surface, preventing slippage and displacement during support. At the same time, the double fixing structure of the air tube 4, the second air nozzle 10, and the connecting seat 12 with threads and clamps 3 ensures a seal and prevents air pressure leakage. If the air pressure in the pipeline exceeds the safety threshold, the first valve core 13 in the pressure relief valve 6 will be pushed by the air pressure to compress the second spring 14, opening the channel to release excess gas and protect the airbag 1 from damage. After the pressure relief valve 6 is opened, the gas in the airbag 1 is discharged through the channel formed by the air tube 4, the connecting seat 12 and the pressure relief valve 6. The elastic force of the second spring 14 can buffer the deflation speed and prevent the supported object from falling rapidly. After the deflation is completed, the airbag 1 can be folded and tied by the four braided straps 2 for easy storage and carrying.

[0022] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A four-airbag synchronous inflation jack, comprising an airbag pack (1) and a second valve core (15); characterized in that: An air intake mechanism is provided on the side of the airbag (1). The air intake mechanism includes a connector (5), a pressure relief valve (6), a first air nozzle (7), and a connecting seat (12). The connecting seat (12) and the pressure relief valve (6) are installed above the connector (5), and the first air nozzle (7) is located on the side of the connector (5).

2. The interconnected four-airbag synchronous inflation jack according to claim 1, characterized in that, The airbag (1) is fixedly connected to the side of the braided strap (2), and there are four symmetrically distributed braided straps (2).

3. The interconnected four-airbag synchronous inflation jack according to claim 2, characterized in that, The upper surface of the airbag (1) is provided with positioning grooves (8), and there are a total of eighty-one positioning grooves (8) arranged in a rectangular uniform pattern. The lower surface of the airbag (1) is fixedly connected with positioning beads (11), and the positioning beads (11) correspond to the positioning grooves (8) in sequence.

4. The interconnected four-airbag synchronous inflation jack according to claim 3, characterized in that, The airbag (1) is connected to the second air nozzle (10) at a diagonal position on one side. The second air nozzle (10) has a straight-through structure and external threads are provided on the surface of the second air nozzle (10).

5. A four-airbag synchronous inflation jack according to claim 4, characterized in that, The second air nozzle (10) is threaded to one end of the air pipe (4), and a clamp (3) is provided at the connection between the air pipe (4) and the second air nozzle (10). The other end of the air pipe (4) is fitted with a connecting seat (12), and the same clamp (3) is provided at the connection between the connecting seat (12) and the air pipe (4). The side of the clamp (3) is fastened by bolts.

6. A four-airbag synchronous inflation jack according to claim 5, characterized in that, Four connecting seats (12) are evenly fixed on the upper surface of the connector (5). The pipes between the connecting seats (12) are connected in parallel. The pressure relief valve (6) is fixedly connected to the upper surface of the connector (5). The first valve core (13) is movably connected inside the pressure relief valve (6). The second spring (14) is fitted on the outside of the first valve core (13). The pipes of the connecting seats (12) are connected in series with the pipes of the pressure relief valve (6).

7. A four-airbag synchronous inflation jack according to claim 6, characterized in that, The connector (5) is fixedly connected to the first air nozzle (7) at the center line of its side. The outer surface of the first air nozzle (7) is threaded, and the second valve core (15) is movably connected inside the first air nozzle (7). The second valve core (15) is fitted with a first spring (9) on its outer side.

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