A multi-layered structure airbag for filling gaps in a cargo hold of a ship

Abstract

The utility model discloses a multilayer structure safety air bag for filling the gap of goods in cabin, including bag body and dual function valve, the dual function valve installs on the left side upper end of bag body, the left side top and left side bottom of bag body all are provided with the buckle, and the middle top and bottom of bag body are provided with the storage area, bag body includes inner bag, middle bag and outer bag, the inner bag is fixed in the inside of middle bag through the valve seat and dust cover ring of dual function valve, and the top and bottom of middle bag and outer bag all are fixed through first edge locking cotton and second edge locking cotton. The utility model discloses a quick air inlet and exhaust dual function valve and multilayer bag body structure are integrated systematically, reduce the stress impact of air bag material in the process of filling and discharging, and the firm structure prolongs the overall life, which makes the air bag product change from "consumable" to the industrial tool of high repeat use rate, and brings the remarkable long -term economic benefit for the customer.

Description

Technical Field

[0001] This utility model relates to the field of airbag technology, specifically a multi-layer structure safety airbag for filling cargo gaps in ship cabins. Background Technology

[0002] In cargo transportation, especially in container shipping and the handling of precision equipment, inflatable bags (or airbags) are widely used as filling, cushioning, support, and securing materials to prevent damage to goods during transport due to shaking and collisions. These transport inflatable bags are typically made of flexible materials and function by inflating with air.

[0003] Currently, the main technical bottlenecks in the market for transport inflatable bags are as follows:

[0004] 1. Insufficient sealing and reliability: Many inflatable bags use simple one-way air inlet valves or valve plug structures separate from the bag body. The sealing performance of these valves largely depends on the operator's tightening. Under long-term vibration and pressure, they are prone to loosening, leading to slow leakage, causing the airbag to lose pressure and fail, thus losing its protective function for the goods. In addition, the connection between the valve body and the bag body is often a weak point in terms of mechanical strength, and it is prone to cracking and damage under repeated inflation and deflation or high pressure.

[0005] 2. Low and uncontrollable inflation and deflation efficiency: Traditional valves have narrow air inlet and deflation channels, and the inflation and deflation time is long, which affects loading and unloading efficiency.

[0006] 3. Simple structure and function, poor durability: Traditional single-layer bag structure has limited ability to resist puncture, abrasion and stress concentration. The entire inflatable bag is regarded as a consumable, with poor reusability and economy.

[0007] Therefore, there is an urgent need in this field for a reusable transport airbag that integrates excellent sealing performance, rapid inflation and deflation capabilities, and high structural stability to solve the pain points of the entire process from inflation and pressure holding to deflation. Utility Model Content

[0008] The purpose of this invention is to provide a multi-layered safety airbag for filling cargo gaps in ship cabins, in order to solve the technical problems mentioned in the background art.

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] A multi-layered safety airbag for filling cargo gaps in ship holds includes a bag body and a dual-function valve. The dual-function valve is installed on the upper left side of the bag body. Hooks are provided at the top and bottom left sides of the bag body, and storage straps are provided at the top and bottom middle of the bag body. The bag body includes an inner bag, a middle bag, and an outer bag. The inner bag is fixed inside the middle bag by the valve seat of the dual-function valve and a dust cover collar. The top and bottom of the middle bag and the outer bag are fixed by a first overlock cotton strip and a second overlock cotton strip.

[0011] Furthermore, the inner bag, middle bag, and outer bag are all double-layered structures.

[0012] Furthermore, the inner bag is a PA / PE co-extruded film.

[0013] Furthermore, the inner bag and outer bag are woven bags or nylon bags.

[0014] Furthermore, the storage strap is equipped with interlocking buckles.

[0015] Furthermore, the dual-function valve includes a stud, a valve core, and a valve seat. The stud includes a stud fixing plate and an air inlet located at the upper part and a stud body located at the lower part of the stud fixing plate. A screw cap is installed around the stud fixing plate. A valve core mounting port is provided in the middle of the stud body. A central hole is provided in the middle of the valve core mounting port. A spring placement platform is provided inside the central hole. The valve core passes through the central hole of the stud and is fixed by a spring. The valve core includes a valve plate, a central column, a sleeve, a valve cover, and a screw. The central column is fixedly installed at the top center of the valve plate. The sleeve is fitted onto the central column. The valve cover is fixed by a screw. A screw is fixedly connected to the center of the central column. Both the central column and the valve cover have through holes with internal threads at their centers. The screw is screwed into the through holes to fix the central column and the valve cover. The valve seat includes a valve seat fixing plate and a threaded body located at the upper part of the valve seat fixing plate and an exhaust port located at the lower part. The inner and outer surfaces of the threaded body are respectively provided with internal threads and external threads. The valve seat is connected to the stud body of the stud through the internal thread. The exhaust port includes a side exhaust port and a bottom exhaust port. The outer ring of the air inlet is fitted with a handle. The other end of the handle is provided with a fixing post. The fixing post is connected and fixed to the handle fixing hole.

[0016] Furthermore, a sealing ring is provided between the valve core and the stud.

[0017] Furthermore, the height of the sleeve is less than the height of the central column.

[0018] Furthermore, a dust cover collar is fixed to the outside of the external thread by a threaded ring.

[0019] Furthermore, the dust cover sleeve is connected to a dust cover and a handle fixing hole, and the dust cover is positioned on top of the air inlet.

[0020] Compared with existing technologies, the beneficial effects of this utility model are:

[0021] This invention systematically integrates a rapid air intake and exhaust dual-function valve with a multi-layer bag structure, forming a complete functional unit that can quickly, safely, and repeatedly perform the "inflation-pressure holding-deflation" cycle. This reduces the stress impact on the airbag material during inflation and deflation, and the robust structure extends the overall lifespan. This transforms the airbag product from a "consumable" to a highly reusable industrial tool, bringing significant long-term economic benefits to customers. Attached Figure Description

[0022] Figure 1 This is the front view of the present invention;

[0023] Figure 2 This is the left view of the present invention;

[0024] Figure 3 This is one of the structural schematic diagrams of the dual-function valve in this utility model;

[0025] Figure 4 This is the second schematic diagram of the structure of the dual-function valve in this utility model;

[0026] Figure 5 This is a front view of the dual-function valve in this utility model;

[0027] Figure 6 This is a left view of the dual-function valve in this utility model;

[0028] Figure 7 This is a right view of the stud in this utility model;

[0029] Figure 8 This is a bottom view of the stud in this utility model;

[0030] Figure 9 This is a schematic diagram of the valve core structure in this utility model;

[0031] Figure 10 for Figure 9 The AA section view shown;

[0032] Figure 11 This is a bottom view of the valve seat in this utility model;

[0033] Figure 12 This is a right view of the valve seat in this utility model;

[0034] Figure 13 This is a schematic diagram of the dust cover in this utility model;

[0035] Figure 14 This is a schematic diagram of the handle structure in this utility model;

[0036] In the diagram: 1-Bag body; 2-Dual-function valve; 3-Hanging buckle; 4-Storage strap; 5-First overlock strip; 6-Second overlock strip; 7-Valve seat; 8-Screw ring; 9-Spring; 10-Dust cover collar; 11-Handle fixing hole; 12-Fixing post; 13-Dust cover; 14-Handle; 15-Screw stud; 16-Sealing ring; 17-Valve core; 18-Screw cap;

[0037] 101-inner bag; 102-middle bag; 103-outer bag;

[0038] 301-Stud mounting plate; 302-Air inlet; 303-Stud body; 304-Valve core mounting port; 305-Center hole; 306-Spring placement platform;

[0039] 501 - Valve plate; 502 - Center column; 503 - Sleeve; 504 - Valve cover; 505 - Screw;

[0040] 701-Valve seat fixing plate; 702-Threaded body; 703-Internal thread; 704-External thread; 705-Side vent; 706-Bottom vent. Detailed Implementation

[0041] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0042] Please see Figure 1-14 A multi-layered safety airbag for filling cargo gaps in ship holds includes a bag body 1 and a dual-function valve 2. The dual-function valve 2 is installed on the upper left side of the bag body 1. The top and bottom left sides of the bag body 1 are provided with hooks 3. The top and bottom middle of the bag body 1 are provided with storage straps 4, and the storage straps 4 are provided with interlocking buckles. The bag body 1 includes an inner bag 101, a middle bag 102, and an outer bag 103. The inner bag 101, middle bag 102, and outer bag 103 are all double-layered structures. The inner bag 101 is made of PA / PE co-extruded film, and the middle bag 102 and outer bag 103 are woven bags or nylon bags. The inner bag 101 is fixed inside the middle bag 102 by the valve seat 7 of the dual-function valve 2 and the dust cover collar 10. The top and bottom of the middle bag 102 and outer bag 103 are fixed by a first overlock cotton strip 5 and a second overlock cotton strip 6.

[0043] The dual-function valve 2 includes a stud 15, a valve core 17, and a valve seat 7. The stud 15 includes a stud fixing plate 301, an air inlet 302 located at the upper part of the stud fixing plate 301, and a stud body 303 located at the lower part. A valve core mounting port 304 is provided in the middle of the stud body 303. A central hole 305 is provided in the middle of the valve core mounting port 304. A spring placement platform 306 is provided inside the central hole 305. A screw cap 18 is installed on the periphery of the stud fixing plate 301.

[0044] The valve core 17 passes through the central hole 305 of the stud 15 and is fixed by the spring 9. A sealing ring 16 is provided between the valve core 17 and the stud body 302. The valve core 17 includes a valve plate 501, a central column 502, a sleeve 503, a valve cover 504, and a screw 505. The central column 502 is fixedly installed on the top center of the valve plate 501. The sleeve 503 is sleeved on the central column 502. The valve cover 504 is fixedly connected to the center position of the central column 502 by the screw 505. The center of both the central column 502 and the valve cover 504 is provided with a through hole with internal threads. After the screw is screwed into the through hole, the central column 502 and the valve cover 504 are fixed. The height of the sleeve 503 is less than the height of the central column 502.

[0045] The valve seat 7 includes a valve seat fixing plate 701, a threaded body 702 located on the upper part of the valve seat fixing plate 701, and an exhaust port located at the lower part. The inner and outer surfaces of the threaded body 702 are respectively provided with an internal thread 703 and an external thread 704. The valve seat 7 is connected to the stud body 302 of the stud 15 through the internal thread 703. The exhaust port includes a side exhaust port 705 and a bottom exhaust port 706.

[0046] A dust cover collar 10 is fixed to the outside of the external thread 704 by a screw ring 8. A dust cover 13 and a handle fixing hole 11 are connected to the dust cover collar 10. The dust cover 13 covers the top of the air inlet 302. A handle 14 is fitted around the outer ring of the air inlet 702. A fixing post 12 is provided at the other end of the handle 14. The fixing post 12 is connected and fixed to the handle fixing hole 11.

[0047] In use, this utility model utilizes the cooperation between the valve core 17 and the stud 15 to press the valve cover 504, causing the valve plate 501 to move up and down, thereby inflating and deflating the air. The operator can achieve uniform and controllable deflating according to the site conditions. The design of the side exhaust ports 705 and bottom exhaust ports 706, which are distributed in the middle and around the perimeter, ensures that the air pressure is released evenly and quickly during deflating, avoiding structural vibration or stress concentration problems that may occur with single-point deflating. This allows the airbag to smoothly unload the supporting force, and the goods can smoothly transition to the supported state, further ensuring the safety and reliability of the valve itself and the airbag.

[0048] This invention significantly extends product lifespan and reduces overall costs: Due to the shortened exhaust time, the time the internal materials of the airbag are subjected to high-pressure stress is correspondingly reduced, thereby greatly alleviating material fatigue and aging, and effectively preventing damage caused by repeated high-pressure creep. This significantly enhances the reusability of marine airbags, reduces replacement frequency, and lowers long-term operating and maintenance costs for customers.

[0049] The airbag of this invention is fixed by the valve seat 7 of the dual-function valve 2 and the dust cover collar 10. The valve seat 7 and the dust cover collar 10 distribute the force of the dual-function valve 2 to a larger area of ​​the bag material, which greatly enhances the structural stability and fatigue resistance of the bag in the area of ​​the dual-function valve 2, avoids the risk of tearing at the joint, and ensures the reliability of the product under long-term repeated use.

[0050] The synergistic effect of the multi-layer bag body and the special valve in this invention enhances durability and economy, and the multi-layer bag body structure itself provides better puncture resistance, wear resistance and pressure resistance.

[0051] The embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A multi-layered airbag for filling cargo gaps in ship holds, characterized in that, The bag includes a bag body (1) and a dual-function valve (2). The dual-function valve (2) is installed on the upper left side of the bag body (1). The top left and bottom left sides of the bag body (1) are provided with hooks (3). The top middle and bottom middle of the bag body (1) are provided with storage straps (4). The bag body (1) includes an inner bag (101), a middle bag (102) and an outer bag (103). The inner bag (101) is fixed inside the middle bag (102) by the valve seat (7) of the dual-function valve (2) and the dust cover collar (10). The top and bottom of the middle bag (102) and the outer bag (103) are fixed by a first overlock cotton strip (5) and a second overlock cotton strip (6).

2. The multi-layered airbag for filling cargo gaps in ship holds according to claim 1, characterized in that, The inner bag (101), middle bag (102) and outer bag (103) are all double-layered structures.

3. The multi-layered airbag for filling cargo gaps in ship holds according to claim 1 or 2, characterized in that, The inner bag (101) is a PA / PE co-extruded film.

4. The multi-layered airbag for filling cargo gaps in ship holds according to claim 1 or 2, characterized in that, The middle bag (102) and the outer bag (103) are woven bags or nylon bags.

5. The multi-layered airbag for filling cargo gaps in ship holds according to claim 1 or 2, characterized in that, The storage strap (4) is provided with interlocking buckles.

6. The multi-layered airbag for filling cargo gaps in a ship's hold according to claim 1 or 2, characterized in that, The dual-function valve (2) includes a stud (15), a valve core (17), and a valve seat (7). The stud (15) includes a stud fixing plate (301), an air inlet (302) located at the upper part of the stud fixing plate (301), and a stud body (303) located at the lower part. A screw cap (18) is installed around the stud fixing plate (301). A valve core mounting port (304) is provided in the middle of the stud body (303). A center hole is provided in the middle of the valve core mounting port (304). (305), a spring placement platform (306) is provided inside the central hole (305); the valve core (17) passes through the central hole (305) of the stud (15) and is fixed by a spring (9); the valve core (17) includes a valve plate (501), a central column (502), a sleeve (503), a valve cover (504), and a screw (505), the central column (502) is fixedly installed on the top center of the valve plate (501), and the sleeve (503) is fitted onto the central column (502). The valve cover (504) is fixedly connected to the center position of the central column (502) by screws (505). Both the central column (502) and the valve cover (504) have through holes with internal threads at their centers. The screws (505) are screwed into these through holes to fix the central column (502) and the valve cover (504). The valve seat (7) includes a valve seat fixing plate (701) and a threaded body (702) located on the upper part of the valve seat fixing plate (701) and an exhaust port located at the lower part. The threaded body (702)... The inner and outer surfaces are respectively provided with internal threads (703) and external threads (704). The valve seat (7) is connected to the stud body (303) of the stud (15) through the internal thread (703). The exhaust port includes a side exhaust port (705) and a bottom exhaust port (706). The outer ring of the air inlet (302) is fitted with a handle (14). The other end of the handle (14) is provided with a fixing post (12). The fixing post (12) is connected and fixed to the handle fixing hole (11).

7. The multi-layered airbag for filling cargo gaps in a ship's hold according to claim 6, characterized in that, A sealing ring (16) is provided between the valve core (17) and the stud (303).

8. The multi-layered airbag for filling cargo gaps in a ship's hold according to claim 6, characterized in that, The height of the sleeve (503) is less than the height of the central column (502).

9. The multi-layered airbag for filling cargo gaps in a ship's hold according to claim 6, characterized in that, The external thread (704) is fixed with a dust cover sleeve (10) by a screw ring (8).

10. The multi-layered airbag for filling cargo gaps in a ship's hold according to claim 6, characterized in that, The dust cover sleeve (10) is connected to a dust cover (13) and a handle fixing hole (11), and the dust cover (13) is placed on the top of the air inlet (302).

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