CN215334676U - Inflation head with pressure relief function - Google Patents
Inflation head with pressure relief function Download PDFInfo
- Publication number
- CN215334676U CN215334676U CN202121340357.6U CN202121340357U CN215334676U CN 215334676 U CN215334676 U CN 215334676U CN 202121340357 U CN202121340357 U CN 202121340357U CN 215334676 U CN215334676 U CN 215334676U
- Authority
- CN
- China
- Prior art keywords
- pressure relief
- inflation
- cavity
- core
- core body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Safety Valves (AREA)
Abstract
The utility model provides an inflation head with a pressure relief function, which comprises an inflation nozzle, wherein the inflation nozzle is communicated with an inflation cavity, the inflation cavity is communicated with an inflation opening, and the inflation opening is arranged on a connecting plate. The connecting plate is also provided with a pressure relief opening, the pressure relief opening is communicated with the pressure relief cavity, and the cross sectional area of the pressure relief opening is smaller than that of the pressure relief cavity. The pressure relief cavity is internally provided with a pressure relief core, the pressure relief core comprises a frustum block and a core body, the small-diameter end of the frustum block is matched with the pressure relief opening, and the cross-sectional area of the large-diameter end of the frustum block is smaller than that of the pressure relief cavity. A spring and a directional device for preventing the pressure relief core from deviating in direction when moving are arranged between the core body and the pressure relief cavity; the side wall of the pressure relief cavity is provided with an exhaust hole. The inflatable head has the pressure relief function, so that the air pressure in the air bag can not be safely limited, the air bag is prevented from being overcharged or being inflated, and the use is safe.
Description
Technical Field
The utility model relates to an air bag inflating device, in particular to an inflating head with a pressure relief function.
Background
The air bag inflation head on the market generally has a single inflation function, cannot safely limit the air pressure in the air bag, is easy to cause excessive inflation, and even inflates and explodes the air bag to generate unnecessary potential safety hazards. The safety performance of such products cannot be guaranteed, and therefore, an inflator device which can prevent an over-inflation or an air bag from being exploded and is safe to use is urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model provides an inflation head with a pressure relief function, which solves the problems that an airbag is easy to be overcharged or exploded and is unsafe to use in the prior art.
The technical scheme of the utility model is realized as follows: an inflation head with a pressure relief function comprises an inflation nozzle, wherein the inflation nozzle is communicated with an inflation cavity, the inflation cavity is communicated with an inflation opening, and the inflation opening is arranged on a connecting plate; the connecting plate is also provided with a pressure relief opening, the pressure relief opening is communicated with a pressure relief cavity, and the cross sectional area of the pressure relief opening is smaller than that of the pressure relief cavity; a pressure relief core is arranged in the pressure relief cavity and comprises a frustum block and a core body, the small-diameter end of the frustum block is matched with the pressure relief opening, the cross sectional area of the large-diameter end of the frustum block is smaller than that of the pressure relief cavity, and a spring is arranged between the core body and the pressure relief cavity; and the side wall of the pressure relief cavity is provided with an exhaust hole.
As a preferable technical solution, an orientation device for limiting the moving direction of the core body is arranged between the core body and the pressure relief cavity.
As a preferable technical solution, the orientation device is a cover cap provided with a groove, the groove is matched with the core body, and the sum of the height of the pressure relief core and the height of the cover cap is greater than the height of the connecting plate.
As a preferred technical scheme, the orientation device is an orientation rod arranged in the pressure relief cavity, and a connecting hole matched with the orientation rod in position and shape is formed in the core body.
As a preferred technical solution, the spring is sleeved on the core body.
As a preferable technical solution, the cross-sectional area of the large diameter end of the frustum block is slightly smaller than the cross-sectional area of the pressure relief cavity.
After the technical scheme is adopted, the utility model has the beneficial effects that: the inflation head with the pressure relief function can effectively control the safety pressure in the air bag and prevent the air bag from being over-inflated or inflated, thereby avoiding potential safety hazards in the use process and ensuring the safety of products. Meanwhile, the inflation head is simple in structure, simple and convenient to produce and process and convenient and fast to install.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a cross-sectional view of a first embodiment of an inflation head with pressure relief of the present invention.
FIG. 2 is a schematic view of the inflation head with pressure relief of the present invention.
In the figure, the charging connector-1; an inflation cavity-2; an inflation inlet-3; a connecting plate-4; a pressure relief opening-5; a pressure relief cavity-6; a pressure relief core-7; a frustum block-8; a core-9; a spring-10; an exhaust hole-11; and (4) a sealing cover-12.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and 2, the inflation head with the pressure relief function in the embodiment of the present invention includes an inflation nozzle 1, the inflation nozzle 1 is communicated with an inflation cavity 2, the inflation cavity 2 is communicated with an inflation port 3, and the inflation port 3 is disposed on a connecting plate 4. The connecting plate 4 is also provided with a pressure relief opening 5, the pressure relief opening 5 is communicated with the pressure relief cavity 6, and the cross sectional area of the pressure relief opening 5 is smaller than that of the pressure relief cavity 6. The pressure relief cavity 6 is internally provided with a pressure relief core 7, the pressure relief core 7 comprises a frustum block 8 and a core body 9, the small-diameter end of the frustum block 8 is matched with the pressure relief port 5, and the cross-sectional area of the large-diameter end of the frustum block 8 is slightly smaller than that of the pressure relief cavity 6. A spring 10 is arranged between the core body 9 and the pressure relief cavity 6, and the spring 10 can be sleeved on the core body 9 or arranged between the top end of the core body 9 and the inner wall of the pressure relief cavity 9. The side wall of the pressure relief cavity 6 is provided with an exhaust hole 11.
In order to prevent the pressure relief core 7 from deviating when moving up and down, the top end of the pressure relief cavity 6 is provided with a sealing cover 12, the sealing cover 12 is provided with a groove matched with the core body 9, the sum of the height of the pressure relief core 7 and the height of the sealing cover 12 is larger than that of the connecting plate 4, and the pressure relief core 7 can be prevented from being separated from the groove of the sealing cover 12 when sliding down.
When the pressure relief structure is used, when the pressure in the air bag is increased to a certain value, air extrudes the pressure relief core 7 to move upwards through the pressure relief opening 5, and when the pressure relief core 7 is separated from the pressure relief opening 5, the air is exhausted through the vent hole 11 through a gap between the pressure relief core 5 and the inner wall of the pressure relief cavity 6 because the cross-sectional area of the large-diameter end of the frustum block 8 is smaller than that of the pressure relief cavity 6; meanwhile, because the gap between the pressure release core and the pressure release core is small, the pressure release core 7 can be prevented from shaking left and right when moving up and down. After the air is exhausted, the pressure in the air bag and the inflation cavity 2 is reduced, and the pressure relief core 7 moves downwards under the action of the spring 10 to block the pressure relief opening 5 again.
A second embodiment of the utility model employs another orientation means. A directional rod is arranged in the pressure relief cavity 6, and a connecting hole matched with the position and the shape of the directional rod is formed in the core body 9. The pressure relief core 7 is limited by the directional rod when sliding and can only move up and down along the central shaft, so that the left and right shaking in the moving process is avoided.
The inflation head with the pressure relief function can effectively control the safety pressure in the air bag and prevent the air bag from being over-inflated or inflated, thereby avoiding potential safety hazards in the use process and ensuring the safety of products. Meanwhile, the inflation head is simple in structure, simple and convenient to produce and process and convenient and fast to install.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. The inflation head with the pressure relief function is characterized by comprising an inflation nozzle (1), wherein the inflation nozzle (1) is communicated with an inflation cavity (2), the inflation cavity (2) is communicated with an inflation port (3), and the inflation port (3) is arranged on a connecting plate (4); the connecting plate (4) is also provided with a pressure relief opening (5), the pressure relief opening (5) is communicated with a pressure relief cavity (6), and the cross sectional area of the pressure relief opening (5) is smaller than that of the pressure relief cavity (6); a pressure relief core (7) is arranged in the pressure relief cavity (6), the pressure relief core (7) comprises a frustum block (8) and a core body (9), the small-diameter end of the frustum block (8) is matched with the pressure relief opening (5), and the cross-sectional area of the large-diameter end of the frustum block (8) is smaller than that of the pressure relief cavity (6); a spring (10) is arranged between the core body (9) and the pressure relief cavity (6); and the side wall of the pressure relief cavity (6) is provided with an exhaust hole (11).
2. The inflation head with the pressure relief function according to claim 1, wherein: and an orientation device for limiting the moving direction of the core body (9) is arranged between the core body (9) and the pressure relief cavity (6).
3. The inflation head with the pressure relief function according to claim 2, wherein: the orientation device is a cover (12) provided with a groove, the groove is matched with the core body (9), and the sum of the height of the pressure relief core (7) and the height of the cover (12) is larger than the height of the connecting plate (4).
4. The inflation head with the pressure relief function according to claim 2, wherein: the orientation device is an orientation rod arranged in the pressure relief cavity (6), and a connecting hole matched with the orientation rod in position and shape is formed in the core body (9).
5. The inflation head with pressure relief function according to any one of claims 1 to 4, wherein: the spring (10) is sleeved on the core body (9).
6. The inflation head with pressure relief function according to any one of claims 1 to 4, wherein: the cross sectional area of the large-diameter end of the frustum block (8) is slightly smaller than that of the pressure relief cavity (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121340357.6U CN215334676U (en) | 2021-06-16 | 2021-06-16 | Inflation head with pressure relief function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121340357.6U CN215334676U (en) | 2021-06-16 | 2021-06-16 | Inflation head with pressure relief function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215334676U true CN215334676U (en) | 2021-12-28 |
Family
ID=79558357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121340357.6U Active CN215334676U (en) | 2021-06-16 | 2021-06-16 | Inflation head with pressure relief function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215334676U (en) |
-
2021
- 2021-06-16 CN CN202121340357.6U patent/CN215334676U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6966576B1 (en) | Airbag restraint system | |
| CN204520089U (en) | There is the neckpillow of automatic inflating venting function | |
| WO2003026925A3 (en) | Airbag with damping mechanism | |
| CN108661879B (en) | Miniature inflating device | |
| CN215334676U (en) | Inflation head with pressure relief function | |
| CN209977129U (en) | Inflatable airbag based on pressure sensor | |
| CN113264192A (en) | Unmanned aerial vehicle gasbag device | |
| CN211568276U (en) | Buffering device for airship | |
| CN201080117Y (en) | Tyre-explosion safety gasbag equipped in wheel | |
| CN205801020U (en) | Control system of safety air bag | |
| CN107933197A (en) | A kind of safety explosion proof tyre | |
| CN207916468U (en) | Self-filler for tire | |
| CN105905065A (en) | Automobile air bag device | |
| CN211643423U (en) | Garbage bin with life vest function | |
| CN109110127A (en) | A kind of patrolling transmission line unmanned plane failure drop protection device | |
| CN206625725U (en) | A kind of safety box with Vibration induction function | |
| CN201304869Y (en) | Automobile and motorcycle tire explosion-proof device | |
| CN218656555U (en) | Explosion-proof aerating device for extrusion forming of milk powder tank | |
| CN102440470A (en) | Safety air bag used in helmet | |
| CN219062572U (en) | Multipurpose inflating nozzle | |
| CN202286493U (en) | Safe airbag used in helmet | |
| CN217416074U (en) | Triggering type air bag inflating mechanism for adjusting gravity center of water rescue robot | |
| CN213989319U (en) | Intelligent socket | |
| US7100943B2 (en) | Gas bag module | |
| CN217462461U (en) | Inflator pump with intelligent deflation structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |