A film sheet welding structure having anti-blocking

Abstract

The utility model relates to airbag technical field, and disclose a kind of membrane welding structure with anti-adhesion, this membrane welding structure with anti-adhesion, including upper outer membrane, the lower surface of upper outer membrane is fixedly installed with upper inner membrane, the upper surface of upper inner membrane is equipped with air hole, the lateral wall of upper inner membrane is fixedly installed with hose, the lower surface of upper inner membrane is fixedly installed with lower inner membrane, the lower surface of lower inner membrane is fixedly installed with lower outer membrane.This membrane welding structure with anti-adhesion, the setting upper inner membrane and lower inner membrane of fixed ring are isolated, to better prevent adhesion, to further guarantee upper inner membrane and lower inner membrane prevent adhesion with the cooperation protruding strip on auxiliary membrane, when inflating, the setting of cooperation two round blocks has the effect of ventilation between membrane, reach the prevention of adhesion between membrane.

Description

Technical Field

[0001] This utility model relates to the field of air bag technology, specifically to a diaphragm welding structure with anti-adhesion properties. Background Technology

[0002] The pneumatic lumbar support and multi-layered airbags of the pneumatic massager exhibit film adhesion during use. As the pressure and inflation volume reach a certain value, the cavity far from the air source suddenly pops up and emits a corresponding noise.

[0003] According to the published information on a multi-layer air bag membrane welding structure with anti-adhesion (publication number: CN221655058U), the above application has a simple structure, low cost, and good reliability; the special protruding structure plays a good role in isolation, effectively solves the problem of adhesion between membranes, and can effectively eliminate noise.

[0004] However, in actual use, the above-mentioned equipment suffers from the phenomenon of membrane adhesion during the use of multi-layer air bags. The adhered membranes affect the inflation effect during inflation, and they will also bounce up and make noise when inflated to a certain extent. In view of this, we propose a membrane welding structure with anti-adhesion. Utility Model Content

[0005] The purpose of this invention is to provide a diaphragm welding structure with anti-adhesion properties to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a diaphragm welding structure with anti-adhesion, comprising an upper outer diaphragm, an upper inner diaphragm fixedly mounted on the lower surface of the upper outer diaphragm, a vent hole formed on the upper surface of the upper inner diaphragm, a flexible tube fixedly mounted on the side wall of the upper inner diaphragm, a lower inner diaphragm fixedly mounted on the lower surface of the upper inner diaphragm, a lower outer diaphragm fixedly mounted on the lower wall of the lower inner diaphragm, an anti-adhesion mechanism provided below the upper inner diaphragm, and a promoting mechanism provided below the upper inner diaphragm. The anti-adhesion mechanism includes:

[0007] A fixing ring is fixedly installed on the lower surface of the upper inner diaphragm. A circular protrusion is fixedly installed on the lower surface of the fixing ring, and an auxiliary diaphragm is fixedly installed on the lower surface of the upper inner diaphragm.

[0008] A raised strip is fixedly installed on the lower surface of the auxiliary diaphragm, and a round block is fixedly installed on the surface of the raised strip.

[0009] Preferably, the promoting mechanism includes a vent hole, which is formed on the side wall of the raised strip, and an air outlet is formed on the side surface of the raised strip near the circular block.

[0010] Preferably, the vent is connected to the outlet, and the vent penetrates the surface of the protrusion, thereby allowing gas to enter other parts of the diaphragm from the vent.

[0011] Preferably, the raised strip is trapezoidal in shape, and there are two circular blocks. The two circular blocks are mirror-distributed and fixedly installed on both sides of the raised strip to promote the effect of preventing adhesion between two adjacent membranes.

[0012] Preferably, the shape of the fixing ring is adapted to the shape of the vent hole, and the fixing ring and the vent hole are concentrically arranged, so that the fixing ring has an anti-adhesion effect on the vent hole and ensures the air inflation effect between the membranes.

[0013] Preferably, the number of circular protrusions is set to several, and the several circular protrusions are arranged in a circumferential array on the surface of the fixing ring. The arrangement of multiple circular protrusions has the effect of preventing adhesion between the diaphragms.

[0014] Preferably, the shape of the auxiliary diaphragm is adapted to the shape of the upper inner diaphragm, so that the auxiliary diaphragm fits better on the surface of the upper inner diaphragm.

[0015] Compared with the prior art, this utility model provides a diaphragm welding structure with anti-adhesion properties, which has the following beneficial effects:

[0016] 1. This anti-adhesion diaphragm welding structure, through the setting of an anti-adhesion mechanism, isolates the upper inner diaphragm from the lower inner diaphragm by setting a fixing ring, thereby better preventing adhesion. In addition, the raised strip on the auxiliary diaphragm further ensures that the upper inner diaphragm and the lower inner diaphragm do not stick together. When inflating, the setting of two round blocks has the effect of air passage between the diaphragms, thereby achieving the effect of preventing adhesion between the diaphragms.

[0017] 2. This anti-adhesion diaphragm welding structure, through the setting of a promoting mechanism and the setting of vent holes, during the blowing process, some gas flows through the vent holes on the raised strip, promoting the uniform flow of gas inside the diaphragm, causing the diaphragm to expand. At the same time, the gas from the vent holes is exhausted between the two round blocks, thereby ensuring better inflation of the interior and preventing the diaphragms from sticking together. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the outer diaphragm of the structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the inner diaphragm of the structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the fixing ring structure of this utility model;

[0022] Figure 5 This is a partial schematic diagram of the protruding strip of the present invention.

[0023] In the diagram: 1. Upper outer diaphragm; 2. Tube; 3. Anti-adhesion mechanism; 301. Fixing ring; 302. Circular protrusion; 303. Auxiliary diaphragm; 304. Raised strip; 305. Circular block; 4. Promoting mechanism; 401. Vent hole; 402. Air outlet; 5. Vent hole; 6. Upper inner diaphragm; 7. Lower inner diaphragm; 8. Lower outer diaphragm. Detailed Implementation

[0024] like Figures 1-5 As shown, this utility model provides a technical solution: a diaphragm welding structure with anti-adhesion, including an upper outer diaphragm 1, an upper inner diaphragm 6 fixedly installed on the lower surface of the upper outer diaphragm 1, a vent hole 5 opened on the upper surface of the upper inner diaphragm 6, a hose 2 fixedly installed on the side wall of the upper inner diaphragm 6, a lower inner diaphragm 7 fixedly installed on the lower surface of the upper inner diaphragm 6, a lower outer diaphragm 8 fixedly installed on the lower wall of the lower inner diaphragm 7, an anti-adhesion mechanism 3 provided below the upper inner diaphragm 6, and a promoting mechanism 4 provided below the upper inner diaphragm 6. The anti-adhesion mechanism 3 includes a fixing ring 301, a circular protrusion 302, an auxiliary diaphragm 303, a protruding strip 304, and a circular block 305.

[0025] In one embodiment of the present invention, a fixing ring 301 is fixedly installed on the lower surface of the upper inner diaphragm 6, a circular protrusion 302 is fixedly installed on the lower surface of the fixing ring 301, an auxiliary diaphragm 303 is fixedly installed on the lower surface of the upper inner diaphragm 6, a protruding strip 304 is fixedly installed on the lower surface of the auxiliary diaphragm 303, and a circular block 305 is fixedly installed on the surface of the protruding strip 304.

[0026] In addition, the promoting mechanism 4 includes a vent 401, which is opened on the side wall of the protrusion 304. The protrusion 304 has an outlet 402 on the side surface near the round block 305. The vent 401 is connected to the outlet 402. The vent 401 penetrates the surface of the protrusion 304, thereby allowing gas to enter other positions of the diaphragm from the vent 401.

[0027] In this embodiment of the utility model, the raised strip 304 is trapezoidal in shape, and two circular blocks 305 are provided. The two circular blocks 305 are fixedly installed on both sides of the raised strip 304 in a mirror distribution to promote the effect of preventing adhesion between two adjacent membranes. The shape of the fixing ring 301 is adapted to the shape of the vent hole 5. The fixing ring 301 and the vent hole 5 are concentrically arranged, so that the fixing ring 301 has an anti-adhesion effect on the vent hole 5 and ensures the air inflation effect between the membranes. Several circular protrusions 302 are provided. Several circular protrusions 302 are arranged in a circumferential array on the surface of the fixing ring 301. The arrangement of multiple circular protrusions 302 has an anti-adhesion effect between the membranes. The shape of the auxiliary membrane 303 is adapted to the shape of the upper inner membrane 6, so that the auxiliary membrane 303 fits better on the surface of the upper inner membrane 6. The edges between the multilayer membranes are fixed by welding. Fixing rings 301 are provided on both the upper and lower surfaces of the upper inner membrane 6 to facilitate the anti-adhesion of the membranes.

[0028] In this invention, during use, the fixing ring 301 isolates the upper inner diaphragm 6 from the lower inner diaphragm 7, thereby better preventing adhesion. Furthermore, the raised strip 304 on the auxiliary diaphragm 303 further ensures that the upper inner diaphragm 6 and the lower inner diaphragm 7 do not stick together. During inflation, the two round blocks 305 facilitate airflow between the diaphragms. The round blocks 305 and the raised strip 304 further prevent adhesion between the diaphragms, thus achieving the goal of preventing adhesion between the diaphragms.

[0029] The vent 401 is set so that during the process of blowing air into the diaphragm through the hose 2, some of the air flows through the vent 401 on the protrusion 304, which promotes the uniform flow of air inside the diaphragm and causes the diaphragm to expand. At the same time, the air in the vent 402 is exhausted between the two round blocks 305, thereby ensuring better inflation of the interior and preventing the diaphragms from sticking together.

[0030] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A diaphragm welding structure with anti-adhesion, comprising an upper outer diaphragm (1), an upper inner diaphragm (6) fixedly mounted on the lower surface of the upper outer diaphragm (1), an air vent (5) formed on the upper surface of the upper inner diaphragm (6), a flexible tube (2) fixedly mounted on the side wall of the upper inner diaphragm (6), a lower inner diaphragm (7) fixedly mounted on the lower surface of the upper inner diaphragm (6), and a lower outer diaphragm (8) fixedly mounted on the lower surface of the lower inner diaphragm (7), characterized in that: An anti-adhesion mechanism (3) is provided below the upper inner membrane (6), and a promoting mechanism (4) is provided below the upper inner membrane (6). The anti-adhesion mechanism (3) includes: A fixing ring (301) is fixedly installed on the lower surface of the upper inner diaphragm (6). A circular protrusion (302) is fixedly installed on the lower surface of the fixing ring (301). An auxiliary diaphragm (303) is fixedly installed on the lower surface of the upper inner diaphragm (6). A raised strip (304) is fixedly installed on the lower surface of the auxiliary diaphragm (303), and a round block (305) is fixedly installed on the surface of the raised strip (304).

2. The diaphragm welding structure with anti-adhesion as described in claim 1, characterized in that: The promoting mechanism (4) includes a vent (401) which is opened on the side wall of the protruding strip (304). The protruding strip (304) has an air outlet (402) on the side surface near the round block (305).

3. The diaphragm welding structure with anti-adhesion as described in claim 2, characterized in that: The vent (401) is connected to the air outlet (402), and the vent (401) penetrates the surface of the protruding strip (304).

4. The diaphragm welding structure with anti-adhesion as described in claim 1, characterized in that: The raised strip (304) is trapezoidal in shape, and there are two circular blocks (305). The two circular blocks (305) are fixedly installed on both sides of the raised strip (304) in a mirror distribution.

5. A diaphragm welding structure with anti-adhesion as described in claim 1, characterized in that: The shape of the fixing ring (301) is adapted to the shape of the vent hole (5), and the fixing ring (301) and the vent hole (5) are concentrically arranged.

6. The diaphragm welding structure with anti-adhesion as described in claim 1, characterized in that: The number of the circular protrusions (302) is set to a certain number, and the circular protrusions (302) are arranged in a circumferential array on the surface of the fixing ring (301).

7. A diaphragm welding structure with anti-adhesion as described in claim 1, characterized in that: The shape of the auxiliary diaphragm (303) is adapted to the shape of the upper inner diaphragm (6).

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