CN219214943U - Off-position protection device - Google Patents
Off-position protection device Download PDFInfo
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- CN219214943U CN219214943U CN202222573980.7U CN202222573980U CN219214943U CN 219214943 U CN219214943 U CN 219214943U CN 202222573980 U CN202222573980 U CN 202222573980U CN 219214943 U CN219214943 U CN 219214943U
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- air bag
- protection device
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Abstract
The utility model discloses an off-position protection device, and belongs to the technical field of passive safety systems of automobiles. The device comprises a shell, an air bag arranged on the inner wall of an opening of the shell, a compression ring arranged at the opening of the shell, an inflation assembly arranged at the bottom of the shell, at least two groups of through channels arranged on two opposite side walls of the shell, at least two groups of first limit grooves arranged on two opposite side walls of the through channels, at least two groups of second limit grooves arranged on two opposite side walls of the through channels, a buckle assembly inserted into the through channels, and at least two groups of pull belts with one end detachably connected to the buckle assembly; the air bag edge is positioned between the shell and the compression ring, and under the action of the compression ring, a sealed cavity is formed between the hollow structure of the shell and the air bag, and the through channel is positioned at the bottom of the shell. When the airbag is not fully unfolded, the passenger contacts with the airbag, and under the cooperation of the exhaust channel, the impact on the off-position passenger is reduced, and the damage of the impact force of the airbag on the off-position passenger is avoided.
Description
Technical Field
The utility model relates to the technical field of passive safety systems of automobiles, in particular to an off-position protection device.
Background
The airbag is capable of protecting the life safety of the occupant in the event of a collision of the vehicle, and reducing the injury to the occupant, and has become a standard configuration of the vehicle. With the intensive research of automobile safety and safety airbags, people pay more attention to the research of the related fields of injuries of out-of-position passengers. The out-of-position state (OOP) refers to a seating state in which the occupant is in contact with an airbag that has not been fully deployed because the occupant is not belted, the initial position in which the occupant sits is forward of the normal position, or because the occupant moves toward the airbag too early or excessively in the event of a collision, the airbag deployment process only lasts for several tens of milliseconds, and extremely large energy is released, resulting in a large slapping effect. If an occupant contacts the airbag when the airbag has not been fully deployed, the occupant may not be able to withstand the strong energy injury.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provide an off-position protection device to solve the problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: an off-position protection device comprises a shell, wherein the inside of the shell is of a hollow structure; an opening communicated with the hollow structure is formed in the top surface of the shell;
a compression ring which is internally buckled on the inner wall of the opening;
the edge of the air bag is tightly attached between the opening and the compression ring; a sealing cavity is formed between the hollow structure and the air bag;
at least one group of through channels arranged on the side wall of the shell;
the buckle assemblies with the same number as the through channels are correspondingly matched and inserted into the through channels; an exhaust channel is formed between the through channel and the top of the buckle component;
one end of the pull belt, which is the same as the buckle components in number, is correspondingly connected with the buckle components in a transmission way, and the other end of the pull belt is connected with the top of the air bag; the stretching strap is adjustable in tightness under the action of the air bag, and the exhaust channel of the buckle assembly is adjustable in size under the action of the stretching strap; when the inflation assembly inflates the air bag, the drawstring is gradually converted into a tight state from a loose state under the action of the air bag, acting force is generated on the buckle assembly, so that the buckle assembly moves in the through passage, and the exhaust passage is gradually reduced until the exhaust passage is completely blocked by the buckle assembly.
The technical scheme is adopted: when the air bag is in an inflated state but is not fully unfolded, an exhaust channel is formed between the buckle component and the through channel, even if an out-of-position passenger is in contact with the air bag, under the action of the exhaust channel, the slapping effect of the air bag is reduced, the injury to the out-of-position passenger is reduced, and under the action of the air bag in the inflation process of the air bag, the drawstring is changed into a tensed state from a relaxed state and drives the buckle component to move upwards in the through channel until the buckle component completely seals the exhaust channel.
Preferably, the method further comprises:
the inflation assembly is arranged at the bottom of the shell; the inflation assembly acts on the sealed cavity.
Preferably, the through channel at least includes: the second limiting groove and the first limiting groove are sequentially formed in the inner wall of the through channel from bottom to top, and the second limiting groove and the first limiting groove are respectively formed in the opposite side walls of the through channel.
Preferably, the buckle assembly includes:
the buckle assembly includes:
the U-shaped sliding block is inserted into the through channel and is partially positioned in the shell;
the through hole is arranged on the U-shaped sliding block and is positioned in the hollow structure of the shell; the pull belt is provided with a through hole and is arranged on the U-shaped sliding block;
the positioning block is arranged in the U-shaped sliding block;
at least two groups of extrusion blocks which are oppositely arranged at two sides of the positioning block and are integrally formed with the positioning block; a gap is reserved between the extrusion block and the positioning block; when the air bag is inflated, the extrusion block extrudes towards the reserved gap under the action of the drawstring;
at least two sets of protruding teeth are arranged on each extrusion block in a flush mode, the longitudinal section of each protruding tooth is identical to that of the second limiting groove, after the exhaust channel is completely blocked by the buckle component, the protruding teeth are located in the second limiting grooves, and the buckle component is fixed in the through channel under the mutual matching of the protruding teeth and the second limiting grooves.
Preferably, the through channel at least includes: the second limiting groove and the first limiting groove are sequentially formed in the inner wall of the through channel from bottom to top, and the second limiting groove and the first limiting groove are respectively formed in the opposite side walls of the through channel.
Two groups of first limit grooves are symmetrically formed in the inner wall of the through channel, and when the bayonet component is in an initial state, the protruding teeth are matched with the corresponding first limit grooves;
two groups of first limit grooves are symmetrically formed in the inner wall of the through channel, and when the bayonet component is in an initial state, the protruding teeth are matched with the corresponding first limit grooves; the inner wall of the through channel is also symmetrically provided with two groups of second limit grooves, when the air bag is continuously inflated until the air bag is in a saturated state, the extrusion block moves upwards in the through channel under the action of the pull belt and extrudes under the action of the through channel, and the protruding teeth are transferred from the first limit grooves to the second limit grooves.
Preferably, the buckle component is made of plastic materials.
Preferably, the longitudinal section of first spacing groove is isosceles triangle type, the longitudinal section of second spacing groove is right angle triangle type, and wherein right angle limit is close to the casing bottom surface, and another right angle limit is close to the through channel, and when buckle subassembly was located first spacing groove, the dismantlement of conveniently buckling the subassembly, the reworking of being convenient for in the course of working, when buckle subassembly was located the second spacing groove, the state that makes buckle subassembly fix in the through channel and be in unable extraction was convenient for carry out the shutoff to the through channel.
Preferably, the air inflation device further comprises an elastic wrapping layer wrapping the air inflation assembly, wherein the elastic wrapping layer is used for filling and sealing a gap between the air inflation assembly and the shell.
Preferably, the shell is made of integrally formed metal plates.
Preferably, the longitudinal section of the hollow structure of the shell is T-shaped to form an annular boss, and the compression ring is arranged at the top of the annular boss.
The beneficial effects are that: in the process of inflating the air bag by the inflation assembly, the stretching strap is changed from a loose state to a tight state under the action of the air bag, and when the air bag is completely unfolded, the through channel is completely blocked by the buckling assembly under the action of the stretching strap, namely, when the air bag is not completely unfolded, an exhaust channel is always reserved between the through channel and the buckling assembly, when the air bag is not completely unfolded, an occupant contacts with the air bag, the impact on the off-position occupant is reduced under the cooperation of the exhaust channel, and the damage of the impact force of the air bag on the off-position occupant is avoided.
Drawings
FIG. 1 is a cross-sectional view of the saturated state of an airbag of the present utility model;
FIG. 2 is a schematic view of a partial structure of the present utility model;
FIG. 3 is a schematic view of a buckle assembly according to the present utility model;
fig. 4 is a cross-sectional view of a buckle assembly according to the present utility model.
The reference numerals in fig. 1 to 4 are: the device comprises a shell 1, an air bag 2, a compression ring 3, an inflation assembly 4, a through channel 5, a first limit groove 6, a second limit groove 7, a buckle assembly 8, a pull belt 9, a U-shaped sliding block 81, a positioning block 82, protruding teeth 83, an extrusion block 84 and a through hole 85.
Detailed Description
In practical applications, the applicant found that: the out-of-position state (OOP) refers to a seating state in which the occupant is in contact with an airbag that has not been fully deployed because the occupant is not belted, the initial position in which the occupant sits is forward of the normal position, or because the occupant moves toward the airbag too early or excessively in the event of a collision, the airbag deployment process only lasts for several tens of milliseconds, and extremely large energy is released, resulting in a large slapping effect. If the occupant is in contact with the airbag when the airbag is not fully deployed, the occupant may not be able to withstand a strong energy injury, and for these problems, an out-of-position protection device is invented that can effectively solve the above problems.
Referring to fig. 1 to 4, the present utility model provides a technical solution: the off-position protection device comprises a shell 1, an air bag 2 arranged on the inner wall of an opening of the shell 1, a compression ring 3 arranged at the opening of the shell 1, an inflation assembly 4 arranged at the bottom of the shell 1, at least one group of through channels 5 arranged on two opposite side walls of the shell 1, two groups of through channels 5 in the embodiment, at least one group of first limit grooves 6 arranged on two opposite side walls of the through channels 5, two groups of first limit grooves 6 in the embodiment, at least one group of second limit grooves 7 arranged on two opposite side walls of the through channels 5, two groups of second limit grooves 7 in the embodiment, a buckle assembly 8 inserted in the through channels 5, and a pull belt 9 with one end detachably connected with the buckle assembly 8; the shell 1 is of a hollow structure with an opening on the top surface, the shell 1 is made of integrally formed metal plates, the buckle assembly 8 is made of plastic materials, the edge of the air bag 2 is positioned between the shell 1 and the compression ring 3, a sealed cavity is formed between the hollow structure of the shell 1 and the air bag 2 under the action of the compression ring 3, the through channel 5 is positioned at the bottom of the shell 1, the second limit groove 7 is positioned above the first limit groove 6, an exhaust channel is formed between the through channel 5 and the buckle assembly 8, and the other end of the drawstring 9 is connected to the top of the air bag 2; when the air bag 2 is inflated by the inflation assembly 4, the pull belt 9 is gradually changed into a tight state from a loose state under the action of the air bag 2, acting force is generated on the buckle assembly 8, the buckle assembly 8 moves in the through passage 5, the exhaust passage is gradually reduced until the buckle assembly 8 is completely blocked, when the air bag 2 is in an inflated state but is not fully unfolded, an exhaust passage is formed between the buckle assembly 8 and the through passage 5, even if an off-position passenger contacts with the air bag 2, under the action of the exhaust passage, the slapping effect of the air bag 2 is reduced, the injury to the off-position passenger is reduced, and under the action of the air bag 2, the pull belt 9 is changed into the tight state from the loose state and drives the buckle assembly 8 to move upwards in the through passage 5 until the buckle assembly 8 completely blocks the exhaust passage.
In a further embodiment, the buckle assembly 8 includes a U-shaped sliding block 81 inserted in the through channel 5, a through hole 85 provided on a side wall of the U-shaped sliding block near the hollow structure of the housing, a positioning block provided in the U-shaped sliding block 81, and at least two sets of extrusion blocks 84 provided on two opposite sides of the positioning block 82, in this embodiment, two sets of extrusion blocks 84 are adopted, and the extrusion blocks 84 and the positioning block 82 are integrally formed; and at least two sets of protruding teeth 83 are flush on the extrusion block 84, in this embodiment, two sets of protruding teeth 83 are adopted, the protruding teeth 83 are arranged in a mirror image manner, the pull strap is provided with a through hole 85 and is arranged on the U-shaped sliding block, the U-shaped sliding block 81 is locally sleeved on the shell 1, a plugging block is formed between the locating block and the extrusion block, the through channel 5 is plugged under the action of external force, the protruding teeth 83 are operatively hinged to the first limit groove 6 or the second limit groove 7, the longitudinal section of the protruding teeth 83 is identical to the longitudinal section of the second limit groove 7, after the exhaust channel is completely plugged by the buckle component 8, the protruding teeth 83 are positioned in the second limit groove 7, and the buckle component 8 is fixed in the through channel 5 under the mutual cooperation of the protruding teeth 83 and the second limit groove 7.
In a further embodiment, the first limiting groove 6 includes a first surface and a second surface, the first surface is horizontally mirrored with the second surface, in other words, the longitudinal section of the first limiting groove 6 is isosceles triangle, the second limiting groove 7 includes a third surface and a fourth surface, the fourth surface is perpendicular to the inner wall of the through part, in other words, the longitudinal section of the second limiting groove 7 is right-angled triangle, a right-angle side is close to the bottom surface of the housing 1, another right-angle side is close to the through channel 5, when the buckle assembly 8 is located in the first limiting groove 6, the disassembly of the buckle assembly 8 is facilitated, the rework is facilitated during the processing, when the buckle assembly 8 is located in the second limiting groove 7, the buckle assembly 8 is fixed in a state incapable of being extracted in the through channel 5, and the through channel 5 is conveniently plugged.
In a further embodiment, the air inflation assembly further comprises an elastic wrapping layer wrapped on the air inflation assembly 4, wherein the elastic wrapping layer is used for filling and sealing a gap between the air inflation assembly 4 and the shell 1.
In a further embodiment, the hollow structure of the housing 1 has a T-shaped longitudinal section to form an annular boss, the compression ring 3 is mounted on the top of the annular boss, and a seal is formed between the edge of the air bag 2 and the cavity of the housing 1 under the action of the compression ring 3.
The specific features described in the above embodiments may be combined in any suitable manner without contradiction. The various possible combinations of the utility model are not described in detail in order to avoid unnecessary repetition.
Claims (9)
1. An off-site protection device, comprising:
a housing having a hollow structure inside; an opening communicated with the hollow structure is formed in the top surface of the shell;
a compression ring which is internally buckled on the inner wall of the opening;
the edge of the air bag is tightly attached between the opening and the compression ring; a sealing cavity is formed between the hollow structure and the air bag;
at least one group of through channels arranged on the side wall of the shell;
the buckle assemblies with the same number as the through channels are correspondingly inserted into the through channels; an exhaust channel is formed between the through channel and the top of the buckle component;
one end of the pull belt, which is the same as the buckle components in number, is correspondingly connected with the buckle components in a transmission way, and the other end of the pull belt is connected with the top of the air bag; the stretching strap is adjustable in tightness under the action of the air bag, and the exhaust channel of the buckle assembly is adjustable in size under the action of the stretching strap.
2. An out-of-position protection device according to claim 1, further comprising:
the inflation assembly is arranged at the bottom of the shell; the inflation assembly acts on the sealed cavity.
3. The out-of-position protection device of claim 1, wherein the snap assembly comprises:
the U-shaped sliding block is inserted into the through channel and is partially positioned in the shell;
the through hole is arranged on the U-shaped sliding block and is positioned in the hollow structure of the shell; the pull belt is provided with a through hole and is arranged on the U-shaped sliding block;
the positioning block is arranged in the U-shaped sliding block;
at least two groups of extrusion blocks which are oppositely arranged at two sides of the positioning block and are integrally formed with the positioning block; a gap is reserved between the extrusion block and the positioning block; when the air bag is inflated, the extrusion block extrudes towards the reserved gap under the action of the drawstring;
at least two sets of protruding teeth are arranged on each extrusion block in a flush way.
4. An out-of-position protection device according to claim 3, wherein said through-passage comprises at least: the second limit groove and the first limit groove are sequentially formed in the inner wall of the through channel from bottom to top, and are respectively formed in the opposite side walls of the through channel; two groups of first limit grooves are symmetrically formed in the inner wall of the through channel, and when the bayonet component is in an initial state, the protruding teeth are matched with the corresponding first limit grooves; the inner wall of the through channel is also symmetrically provided with two groups of second limit grooves, when the air bag is continuously inflated until the air bag is in a saturated state, the extrusion block moves upwards in the through channel under the action of the pull belt and extrudes under the action of the through channel, and the protruding teeth are transferred from the first limit grooves to the second limit grooves.
5. The out-of-position protection device of claim 1, wherein the snap-in assembly is made of a plastic material.
6. The out-of-position protection device of claim 4, wherein the longitudinal section of the first limiting groove is isosceles triangle;
the longitudinal section of the second limit groove is in a right-angle triangle shape, wherein one right-angle side is close to the bottom surface of the shell, and the other right-angle side is close to the through channel;
the first limit groove comprises: a first face and a second face, the first face being a horizontal mirror image of the second face;
the second limit groove comprises: and a third surface and a fourth surface perpendicular to the inner wall of the through portion.
7. The out-of-position protection device of claim 2, further comprising an elastic wrapping wrapped around the inflation assembly, the elastic wrapping being configured to fill and seal a gap between the inflation assembly and the housing.
8. The out-of-position protection device of claim 1, wherein the housing is made of integrally formed sheet metal.
9. The out-of-position protection device according to claim 1, wherein the hollow structure of the housing has a longitudinal cross section of a T-shape to form an annular boss, and the compression ring is mounted on top of the annular boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222573980.7U CN219214943U (en) | 2022-09-27 | 2022-09-27 | Off-position protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222573980.7U CN219214943U (en) | 2022-09-27 | 2022-09-27 | Off-position protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219214943U true CN219214943U (en) | 2023-06-20 |
Family
ID=86753614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222573980.7U Active CN219214943U (en) | 2022-09-27 | 2022-09-27 | Off-position protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219214943U (en) |
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2022
- 2022-09-27 CN CN202222573980.7U patent/CN219214943U/en active Active
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