Sealing air tap and air storage assembly

Abstract

The utility model relates to the field of air tap sealing, and particularly discloses a sealing air tap which comprises a shell, a gas channel penetrating through the shell is arranged in the shell, an elastic sealing assembly is arranged in the gas channel and comprises an elastic piece and a blocking piece which abut against each other, and when the elastic piece is in a first state, the blocking piece is in a second state. When the elastic piece is in the first state, the blocking piece blocks the gas channel, and when the elastic piece is in the second state, the blocking piece relieves blocking of the gas channel. Compared with the prior art, the sealing air tap has the advantages that the requirement on the machining precision of each component is relatively low, the machining cost is low, and meanwhile, the sealing air tap is difficult to abrade and better in sealing performance. The utility model further discloses a gas storage assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of air nozzle sealing, in particular to a sealing air nozzle and an air storage component. Background Art

[0002] The charging and discharging valves on airbags or other gas storage components mainly adopt a straight-through structure, and their sealing is generally achieved through the close fit of the valve core and the pressure block. For example, the valve core head is provided with a 90-degree conical surface that matches the 90-degree conical surface provided on the pressure block, and a circle of sealing strips is provided on the outer circle of the valve core to improve the sealing. However, the problem with the above-mentioned charging and discharging valve structure is that in order to ensure that the conical surface of the valve core head and the conical surface on the pressure block are closely matched, the processing accuracy requirements for the valve core and the pressure block will be very high, and the processing cost will also be relatively high. At the same time, the valve core and the pressure block may also wear during the contact process, affecting the air tightness.

[0003] In view of this, it is necessary to provide a sealing gas nozzle to solve or overcome the above technical problems. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a sealing gas nozzle, which has relatively low requirements on the processing accuracy of various components and low processing cost, and at the same time, is not easy to wear and has good sealing performance.

[0005] In addition, the technical problem that the utility model needs to solve is to provide an air storage component, which has relatively low requirements on the processing accuracy of each component and low processing cost. At the same time, it is not easy to wear and has good sealing performance.

[0006] In order to solve the above technical problems, the utility model provides a sealing gas nozzle on the one hand, including: a shell, a gas channel running through the shell is provided in the shell, an elastic sealing component is provided in the gas channel, the elastic sealing component includes an elastic part and a blocking part abutting against each other, when the elastic part is in a first state, the blocking part blocks the gas channel, and when the elastic part is in a second state, the blocking part releases the blockage of the gas channel.

[0007] Optionally, the gas channel includes a first gas port, a first gas segment, a second gas segment and a second gas port connected in sequence, the first gas port is used to connect with an external inflation device, the second gas port is used to connect with a gas storage component, the first gas segment includes a first abutting portion, the elastic component and the blocking component are arranged in the second gas segment, and when the elastic component is in the first state, the blocking component abuts against the first abutting portion to block the gas channel.

[0008] Optionally, the second air section includes a second abutting portion, and one end of the elastic member abuts against the blocking member, and the other end abuts against the second abutting portion.

[0009] Optionally, it further includes: an abutment member, which is fixedly connected in the second air segment to form the second abutment portion, and an air channel is provided in the abutment member, and the air channel connects the second air segment and the second air port.

[0010] Optionally, the first abutting portion includes an abutting boss and a sealing member connected to each other, the sealing member is arranged between the abutting boss and the blocking member, and when the elastic member is in the first state, the blocking member abuts against the sealing member to block the gas channel.

[0011] Optionally, a portion of the inner wall of the first air segment protrudes toward the center of the first air segment to form the abutment boss.

[0012] Optionally, the abutment member is a plastic member, and the plastic member is fixedly connected to the inner wall of the second air segment by gluing or hot melting.

[0013] Optionally, the sealing member and the abutting boss are configured as an annular structure.

[0014] Optionally, the shell includes a shell portion and an air nozzle portion which are connected to each other, the gas channel runs through the air nozzle portion and the shell portion, the first air port is arranged at the air nozzle portion, the second air port is arranged at the shell portion, the air nozzle portion is used to connect to an external inflation device, and the shell portion is used to connect to an air storage component.

[0015] Optionally, the shell portion is constructed in a flat shape and is provided with relatively arranged flat surfaces, and the flat surfaces are used for hot-pressing connection with the gas storage member.

[0016] On the other hand, the utility model provides an air storage component, comprising a sealing air nozzle and an air storage component according to any one of the above technical solutions, wherein the sealing air nozzle is sealingly connected to the air storage component, and the gas channel is connected to the air storage space inside the air storage component.

[0017] Through the above technical solution, the beneficial effects of the utility model are as follows:

[0018] The utility model sealing gas nozzle comprises: a shell, a gas passage penetrating the shell is arranged in the shell, an elastic sealing assembly is arranged in the gas passage, the elastic sealing assembly comprises an elastic member and a blocking member abutting against each other, the elastic member comprises two working states, when the elastic member is in a first state, the blocking member blocks the gas passage, when the elastic member is in a second state, the blocking member releases the blocking of the gas passage. The sealing gas nozzle has relatively low processing accuracy requirements for each component, low processing cost, and is not easy to wear and has good sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a structural schematic diagram of a housing of a sealing gas nozzle according to a specific embodiment of the utility model;

[0020] Figure 2 yes Figure 1 Schematic diagram of AA in the middle;

[0021] Figure 3 It is a structural schematic diagram of an air storage component according to a specific implementation mode of the utility model.

[0022] Description of Reference Numerals

[0023] 1. Sealing air nozzle; 2. Shell; 21. Shell part; 22. Air nozzle part; 3. Elastic member; 4. Sealing member; 5. First air section; 6. Second air section; 7. Abutment member; 8. First abutment part; 81. Abutment boss; 82. Sealing member; 9. First air port; 10. Second air port; 11. Air duct; 12. Air storage member; 13. Air storage assembly. DETAILED DESCRIPTION

[0024] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0025] First of all, it should be noted that some directional words involved in the following description to clearly illustrate the technical solution of the utility model are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] The utility model provides a sealing gas nozzle 1, see Figures 1 to 3As shown, it includes: a shell 2, a gas channel penetrating the shell 2 is provided in the shell 2, an elastic sealing component is provided in the gas channel, the elastic sealing component includes an elastic member 3 and a blocking member 4 abutting against each other, when the elastic member 3 is in a first state, the blocking member 4 blocks the gas channel, and when the elastic member 3 is in a second state, the blocking member 4 releases the blockage of the gas channel.

[0029] It should be noted that the sealing gas nozzle 1 of the utility model includes a shell 2, a gas channel penetrating the shell 2 is provided in the shell 2, an elastic sealing component is provided in the gas channel, the elastic sealing component includes an elastic part 3 and a sealing part 4, the two are against each other, and there is a certain elastic force. Optionally, the elastic part 3 is a spring and the sealing part 4 is a steel ball. The elastic member 3 includes two working states. When the elastic member 3 is in the second state, it is the inflated state. When the gas pressure applied to the gas channel reaches the design threshold, or the pressure is applied by the air needle directly contacting the sealing member 4 so that the elastic force of the elastic member 3 reaches the design threshold, the sealing member 4 moves downward, and the sealing member 4 compresses the elastic member 3 downward, that is, the elastic member 3 is in a passive compression state, and the sealing member 4 can release the blockage of the gas channel; when the elastic member 3 is in the first state, it is the sealed state, the sealing gas nozzle 1 is in a non-working state, or the gas pressure applied to the gas channel does not reach the design threshold, or the pressure applied by the air needle contacting the sealing member 4 does not reach the elastic force design threshold of the elastic member 3. At this time, the elastic member 3 is in a relaxed state, and the sealing member 4 can block the gas channel, or the elastic member 3 is in a free compression state, and the elastic member 3 presses against the sealing member 4 to block the gas channel, thereby ensuring the sealing of the gas.

[0030] As another embodiment of the blocking member 4, the blocking member 4 is two blocking plates butted against each other, and the elastic member 3 abuts against the butt joint. When the elastic member 3 is in a compressed state, the two blocking plates block the gas passage. When the elastic member 3 is in a relaxed state, it does not abut against the blocking plates, and the two blocking plates are open and do not block the gas passage.

[0031] In some embodiments, the gas passage includes a first gas port 9, a first gas segment 5, a second gas segment 6, and a second gas port 10 connected in sequence, the first gas port 9 is used to communicate with an external inflation device, the second gas port 10 is used to communicate with a gas storage member 13, the first gas segment 5 includes a first abutment portion 8, the elastic member 3 and the blocking member 4 are arranged in the second gas segment 6, and when the elastic member 3 is in the first state, the blocking member 4 abuts against the first abutment portion 8 to block the gas passage. It should be noted that the inner diameter of the hole of the first gas segment 5 is smaller than the inner diameter of the hole of the second gas segment 6. The design of the inner diameter of the hole of the first gas segment 5 is mainly based on the rate of inflation and deflation, while the design size of the inner diameter of the hole of the second gas segment 6 needs to consider the diameters of the elastic member 3 and the blocking member 4 to prevent the phenomenon of loose installation. A first gas port 9 is provided at the port of the first gas section 5, and the first gas port 9 is connected to an external inflation device to fill the gas into the gas channel. A second gas port 10 is provided at the port of the second gas section 6, and the gas passing through the gas channel is injected into the gas storage member 13 through the second gas port 10. The first gas section 5 includes a first abutting portion 8, and the second gas section 6 includes a second abutting portion. One end of the elastic member 3 abuts against the blocking member 4, and the other end abuts against the second abutting portion. When the elastic member 3 is in the first state, that is, in a sealed state, at this time, the elastic member 3 is in a free compression state, and the elastic member 3 presses against the blocking member 4, and the blocking member 4 abuts against the first abutting portion 8 to form a sealing structure, so as to achieve the blocking of the gas channel.

[0032] In some embodiments, the first abutting portion 8 includes an abutting boss 81 and a sealing member 82 connected to each other, and the sealing member 82 is disposed between the abutting boss 81 and the blocking member 4. When the elastic member 3 is in the first state, the blocking member 4 abuts against the sealing member 82 to block the gas passage. It should be noted that the sealing member 82 and the abutting boss 81 are constructed as an annular structure, and the abutting boss 81 is formed by a portion of the inner wall of the first gas segment 5 protruding toward the center of the first gas segment 5. The diameter of the blocking member 4 is between the inner diameter of the hole of the first gas segment 5 and the inner diameter of the hole of the second gas segment 6. It should be noted that the diameter of the blocking member 4 is larger than the inner diameter of the hole of the first gas segment 5, which ensures that in the sealed state, the elastic member 3 can push the blocking member 4 to press tightly against the sealing member 82 to prevent leakage. The diameter of the blocking member 4 is smaller than the inner diameter of the hole of the second gas segment 6, which ensures that the blocking member 4 can move up and down in the second gas segment 6.

[0033] In some embodiments, the inner surface roughness of the first gas segment 5 is less than or equal to Ra3.2. It should be noted that, for the first gas segment 5, the inner surface roughness thereof may affect the sealing of the gas nozzle. First, for the relatively smooth inner surface of the first gas segment 5, the contact area with the gas is larger, and the sealing performance is better, while the contact area of ​​the inner surface with a rough surface is smaller, and the sealing performance is reduced. Secondly, the uneven part on the inner wall of the first gas segment 5 will cause gaps in the close contact, which may cause gas leakage, and the first gas segment 5 with a smooth surface has higher sealing performance. In addition, the inner surface roughness of the first gas segment 5 will also affect the friction resistance. The first gas segment 5 with a relatively smooth inner surface has small friction resistance and small mechanical energy loss, which can increase the life of the first gas segment 5.

[0034] In some embodiments, it also includes: an abutment member 7, the abutment member 7 is fixedly connected to the second gas segment 6 to form a second abutment portion, and an air channel 11 is provided in the abutment member 7, and the air channel 11 communicates with the second gas segment 6 and the second gas port 10. It should be noted that the abutment member 7 is installed in the second gas segment 6, preferably, the abutment member 7 is constructed as an annular structure, the elastic member 3 is installed on the abutment member 7, and the abutment member 7 supports the elastic member 3. The abutment member 7 can be cylindrical, and an interference fit is adopted between it and the housing 2 to ensure the sealing performance. It will not fall off from the housing 2 under the elastic force of the elastic member 3. The lower end of the abutment member 7 is flush with the housing 2 and is not exposed. The air channel 11 is formed by a through hole in the middle of the abutment member 7 along the vertical direction, and the air channel 11 communicates with the second gas segment 6 and the second gas port 10. The abutment member 7 is a plastic member, which is fixedly connected to the inner wall of the second gas segment 6 by gluing or hot melting, which can ensure the sealing between the two and prevent gas leakage when the gas flows through the second gas segment 6. It should be emphasized that the abutment member 7 can also be a metal member, which is installed on the inner wall of the second gas segment 6 by gluing or electric melting.

[0035] In some embodiments, the shell 2 includes a shell portion 21 and a nozzle portion 22 that are connected to each other, the gas channel runs through the nozzle portion 22 and the shell portion 21, the first gas port 9 is provided at the nozzle portion 22, the second gas port 10 is provided at the shell portion 21, the nozzle portion 22 is used to connect to an external inflation device, and the shell portion 21 is used to connect to the gas storage member 12. It should be noted that the shell 2 is an injection molded part, which is formed in one step using a lightweight and high-strength thermoplastic resin material, with high production efficiency and low cost. The nozzle portion 22 is mainly used to connect to an external inflation device, and can provide a certain identification function. The shell portion 21 is provided with an elastic member 3, a sealing member 4, an abutment member 7 and a sealing member 8. The gas enters the shell portion 21 through the nozzle portion 22, and then enters the gas storage member 12 to complete the corresponding inflation or deflation function.

[0036] In some embodiments, the housing portion 21 is flat and provided with relatively arranged flat surfaces, which are used for hot pressing connection with the gas storage member 12. It should be noted that the outer contour of the housing portion 21 is streamlined, and the flat surface is assembled and connected with the gas storage member 12 through a hot pressing process. The surface of the pressed product has no protrusions, wrinkles or other poor appearance, and the air nozzle can be well integrated into the airbag or airbag product.

[0037] As a relatively preferred embodiment of the sealing gas nozzle of the utility model, it includes: a shell 2 and an abutment member 7, a gas channel penetrating the shell 2 is provided in the shell 2, an elastic sealing component is provided in the gas channel, the elastic sealing component includes an elastic member 3 and a blocking member 4 abutting against each other, when the elastic member 3 is in a first state, the blocking member 4 blocks the gas channel, and when the elastic member 3 is in a second state, the blocking member 4 releases the blockage of the gas channel. The gas passage includes a first gas port 9, a first gas section 5, a second gas section 6 and a second gas port 10 which are connected in sequence. The first gas port 9 is used to communicate with an external inflation device, and the second gas port 10 is used to communicate with a gas storage member 12. The first gas section 5 includes a first abutting portion 8. The elastic member 3 and the blocking member 4 are arranged in the second gas section 6. When the elastic member 3 is in the first state, the blocking member 4 abuts against the first abutting portion 8 to block the gas passage. The second gas section 6 includes a second abutting portion. One end of the elastic member 3 abuts against the blocking member 4, and the other end abuts against the second abutting portion. The abutting member 7 is fixedly connected to the second gas section 6 to form a second abutting portion. An air channel 11 is provided in the abutting member 7. The air channel 11 connects the second gas section 6 and the second gas port 10. The first abutting portion 8 includes an abutting boss 81 and a sealing member 82 which are connected to each other. The sealing member 82 is arranged between the abutting boss 81 and the blocking member 4. When the elastic member 3 is in the first state, the elastic member 3 is in a free compression state, the blocking member 4 abuts against the sealing member 82 to block the gas passage, a portion of the inner wall of the first gas segment 5 protrudes toward the center of the first gas segment 5 to form an abutting boss 81, the abutting member 7 is a plastic member, and the plastic member is fixedly connected to the inner wall of the second gas segment 6 by gluing or hot melting, the sealing member 82 and the abutting boss 81 are constructed as an annular structure, the shell 2 includes a shell portion 21 and a gas nozzle portion 22 connected to each other, the gas passage passes through the gas nozzle portion 22 and the shell portion 21, the first gas port 9 is provided at the gas nozzle portion 22, the second gas port 10 is provided at the shell portion 21, the gas nozzle portion 22 is used to connect an external inflation device, the shell portion 21 is used to connect to the gas storage member 12, the shell portion 21 is constructed to be flat and is provided with relatively arranged flat surfaces, and the flat surfaces are used to be hot-pressed with the gas storage member 12.

[0038] The working process is as follows: when the elastic member 3 is in a first state, that is, a sealing state, the sealing gas nozzle 1 is in a non-working state, or the gas pressure applied in the gas channel does not reach the design threshold, or the pressure applied by the air needle contacting the blocking member 4 does not reach the elastic force design threshold of the elastic member 3. At this time, the elastic member 3 is in a relaxed state, and the blocking member 4 can block the gas channel, or the elastic member 3 is in a free compression state, and the elastic member 3 presses against the blocking member 4 to block the gas channel, thereby ensuring the sealing of the gas; when the elastic member 3 is in a second state, that is, an inflation state, when the gas pressure applied in the gas channel reaches the design threshold or the air needle directly contacts the blocking member 4 to apply pressure so that the elastic force of the elastic member 3 reaches the design threshold, the blocking member 4 compresses the elastic member 3 downward, that is, the elastic member 3 is in a passive compression state, and the blocking member 4 moves downward, and the blocking member 4 can release the blockage of the gas channel, thereby inflating the gas storage member 12. The sealing gas nozzle 1 has relatively low requirements on the processing accuracy of each component, and has low processing cost. At the same time, it is not easy to wear and has good sealing performance.

[0039] In addition, the utility model also provides a gas storage assembly 13, comprising the sealing gas nozzle 1 and the gas storage member 12 of the above technical solution, the sealing gas nozzle 1 is sealed and connected to the gas storage member 12, and the gas channel is connected to the gas storage space inside the gas storage member 12. The gas storage assembly 13 has relatively low requirements on the processing accuracy of each component, low processing cost, and is not easy to wear and has good sealing performance.

[0040] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.

[0041] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

[0042] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A sealing gas nozzle (1), characterized in that: include: A shell (2), wherein a gas passage penetrating the shell (2) is provided in the shell (2), wherein an elastic sealing component is provided in the gas passage, wherein the elastic sealing component comprises an elastic member (3) and a blocking member (4) abutting against each other, wherein when the elastic member (3) is in a first state, the blocking member (4) blocks the gas passage, and when the elastic member (3) is in a second state, the blocking member (4) releases the blockage of the gas passage.

2. The sealing gas nozzle (1) according to claim 1, characterized in that: The gas passage comprises a first gas port (9), a first gas section (5), a second gas section (6) and a second gas port (10) which are connected in sequence, wherein the first gas port (9) is used to be connected to an external inflation device, and the second gas port (10) is used to be connected to a gas storage member (12). The first gas section (5) comprises a first abutting portion (8), and the elastic member (3) and the blocking member (4) are arranged in the second gas section (6). When the elastic member (3) is in a first state, the blocking member (4) abuts against the first abutting portion (8) to block the gas passage.

3. The sealing gas nozzle (1) according to claim 2, characterized in that: The second air section (6) comprises a second abutment portion, one end of the elastic member (3) abuts against the blocking member (4), and the other end abuts against the second abutment portion.

4. The sealing gas nozzle (1) according to claim 3, characterized in that: Also includes: An abutment member (7), wherein the abutment member (7) is fixedly connected to the second air section (6) to form the second abutment portion, and an air passage (11) is provided in the abutment member (7), wherein the air passage (11) communicates with the second air section (6) and the second air port (10).

5. The sealing gas nozzle (1) according to claim 2, characterized in that: The first abutting portion (8) comprises an abutting boss (81) and a sealing member (82) which are connected to each other. The sealing member (82) is arranged between the abutting boss (81) and the blocking member (4). When the elastic member (3) is in the first state, the blocking member (4) abuts against the sealing member (82) to block the gas passage.

6. The sealing gas nozzle (1) according to claim 5, characterized in that: A portion of the inner wall of the first air segment (5) protrudes toward the center of the first air segment (5) to form the abutment boss (81).

7. The sealing gas nozzle (1) according to claim 4, characterized in that: The abutment member (7) is a plastic member, and the plastic member is fixedly connected to the inner wall of the second air section (6) by gluing or hot melting.

8. The sealing gas nozzle (1) according to claim 5, characterized in that: The sealing member (82) and the abutting boss (81) are configured as an annular structure.

9. The sealing gas nozzle (1) according to any one of claims 2 to 7, characterized in that: The shell (2) comprises a shell portion (21) and an air nozzle portion (22) which are connected to each other, the gas passage passes through the air nozzle portion (22) and the shell portion (21), the first air port (9) is provided at the air nozzle portion (22), the second air port (10) is provided at the shell portion (21), the air nozzle portion (22) is used to connect to an external inflation device, and the shell portion (21) is used to connect to an air storage member (12).

10. The sealing gas nozzle (1) according to claim 9, characterized in that: The shell portion (21) is constructed in a flat shape and is provided with oppositely arranged flat surfaces, wherein the flat surfaces are used for hot-pressing connection with the gas storage member (12).

11. A gas storage assembly (13), characterized in that: It comprises the sealing gas nozzle (1) and the gas storage member (12) according to any one of claims 1 to 10, wherein the sealing gas nozzle (1) is sealingly connected to the gas storage member (12), and the gas channel is connected to the gas storage space inside the gas storage member (12).

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