CN109770482B - Pneumatic clamping snap fastener - Google Patents
Pneumatic clamping snap fastener Download PDFInfo
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- CN109770482B CN109770482B CN201910136506.8A CN201910136506A CN109770482B CN 109770482 B CN109770482 B CN 109770482B CN 201910136506 A CN201910136506 A CN 201910136506A CN 109770482 B CN109770482 B CN 109770482B
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- expansion part
- buckle
- snap fastener
- wall
- male
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Abstract
The invention belongs to the field of buttons, and particularly relates to a pneumatic clamping snap fastener, which comprises: male and female buttons; the front end of the male buckle is provided with an expansion part made of flexible materials, and the expansion part is pressed to deform and clamped in the female buckle receiving cavity after being inserted into the female buckle, so that the male buckle and the female buckle are meshed; when the pneumatic clamping snap fastener is used for clamping, the end part of the male fastener is expanded by air pressure to realize buckling, the strength during buckling is kept, and when the pneumatic clamping snap fastener needs to be separated, the pneumatic clamping snap fastener can be easily separated by simple operation.
Description
Technical Field
The invention belongs to the field of buttons, and particularly relates to a pneumatic clamping snap fastener.
Background
The snap fastener is composed of a male buckle and a female buckle, and realizes the meshing of the joint parts of clothes, bags and the like through the mutual occlusion of the male buckle and the female buckle.
The existing snap fasteners are mainly made of two materials, namely plastic or metal, the snap fasteners made of the plastic materials need extremely high manufacturing precision to overcome the clamping error between the female fastener and the male fastener caused by temperature difference and environmental temperature difference during manufacturing, and the snap fasteners made of the metal can reduce the clamping error caused by the temperature difference and the environmental temperature difference during manufacturing, but also need relatively high manufacturing precision to ensure the normal use of the snap fasteners.
After the snap fastener made of the plastic or metal materials is used for a period of time, the snap fastener can be accidentally separated from the female fastener due to the clamping error between the female fastener and the male fastener caused by material abrasion and material fatigue, and the snap fastener cannot be normally used.
Disclosure of Invention
The present invention has been made in view of the above problems, and an object of the present invention is to provide a pneumatic snap fastener which can be easily separated by a simple operation when separation is required, by expanding a male snap end by air pressure at the time of engagement to achieve engagement and maintaining the strength at the time of engagement.
To achieve the object, a pneumatic snap fastener comprises: a female buckle and a male buckle; the front end of the male buckle is provided with an expansion part made of flexible materials, and the expansion part is pressed to deform and clamped in the female buckle receiving cavity after being inserted into the female buckle, so that the male buckle and the female buckle are meshed;
an annular groove is formed in the lower portion of the inner wall of the female buckle receiving cavity towards the outer peripheral side, the annular groove is arranged in a semicircular arc shape towards the outer side, and a hemispherical convex pressing portion is formed upwards along the axis of the annular groove;
the male buckle is composed of a male buckle body and an expansion part, the expansion part is a cylindrical sealing cavity with the middle part slightly protruding outwards in an arc shape, the outer side wall and the lower end wall of the cylindrical sealing cavity of the expansion part are made of flexible materials with elastic expansion performance, a through hole is formed in the axle center of the upper end of the expansion part, a one-way valve is arranged at the through hole, a scissor-type control rod is upwards arranged along the one-way valve, the scissor-type control rod is arranged in a circular tubular cavity of the male buckle body, two control buttons are horizontally extended towards the opposite directions respectively at the upper end of the scissor-type control rod, and the two control buttons are all protruded out of the outer periphery side of the male buckle body.
Further, the lower end wall of the expansion part of the male buckle is in a disc shape, and the wall thickness of the lower end wall of the disc-shaped expansion part is larger than that of the outer side wall of the expansion part.
Furthermore, a spherical groove is formed upwards in the axial center of the lower end face of the lower end wall of the expansion part of the male buckle, and the spherical groove is arranged corresponding to the hemispherical bulge of the pressing part of the female buckle.
Further, an arc-shaped end head is formed at the lower end of the scissor type control rod and is abutted to the one-way valve.
Further, two control buttons at the upper end of the scissor-type control rod are provided with return springs, and the return springs are installed in installation holes formed in the side wall of the male buckle body.
Has the advantages that:
1. in the technical scheme, when the male buckle is inserted into the female buckle for meshing, the expansion part at the lower end of the male buckle is contacted with the pressure applying part of the female buckle, and under the condition that the male buckle is continuously inserted downwards, the pressure applying part of the female buckle blocks the expansion part to move downwards and applies pressure to the expansion part through reaction force, so that the outer peripheral side of the expansion part is outwards expanded to be abutted against the inner wall of the annular groove of the female buckle, and the male buckle and the female buckle are meshed.
2. In this technical scheme, when pin thread and box need the separation to be opened, press two control button simultaneously, make and cut fork control lever lower extreme lapse and open the check valve, the air in the extension portion is liberated, makes extension portion lateral wall shrink and box annular groove inner wall break away from, realizes the separation of pin thread and box.
3. In the technical scheme, the lower end wall of the relatively thickened expansion part has relatively increased pressure bearing capacity when the expansion part is pressed to deform, so that the outer peripheral side of the expansion part with relatively weaker pressure bearing capacity is smoothly deformed.
4. In this technical scheme, the spherical recess and the hemisphere arch that correspond the setting have the positioning effect when the portion of exerting pressure exerts pressure to the expansion portion, and this location makes when expansion portion periphery side compressive deformation, the skew can not appear to make expansion portion periphery side compressive uniform.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a sectional view showing an initial state of the pneumatic snap fastener of the present invention.
FIG. 3 is a cross-sectional view showing a state in which the pneumatic engaging snap fastener of the present invention is engaged.
FIG. 4 is a sectional view showing an initial state of the pneumatic snap fastener of the present invention.
FIG. 5 is a cross-sectional view showing a state in which the pneumatic engaging snap fastener of the present invention is engaged.
Detailed Description
The present invention is further illustrated in the following description with reference to specific embodiments and the accompanying drawings, wherein the details are set forth in order to provide a thorough understanding of the present invention, but it is apparent that the present invention can be embodied in many other forms different from the description herein, and it will be readily appreciated by those skilled in the art that the present invention can be embodied in many different forms without departing from the spirit and scope of the invention.
As shown in fig. 1, 2 and 3, the present invention provides a pneumatic snap fastener, including: a female buckle 1 and a male buckle 2; the front end of the male buckle 2 is provided with an expansion part 21 made of flexible materials, and the expansion part 21 is pressed to deform and clamped in a receiving cavity of the female buckle 1 after being inserted into the female buckle 1, so that the male buckle 2 is meshed with the female buckle 1;
as shown in fig. 1 and 2, an annular groove 11 is formed in the lower portion of the inner wall of the receiving cavity of the female buckle 1 toward the outer peripheral side, the annular groove 11 is arranged in a semicircular arc shape toward the outer side, and a pressure applying portion 12 protruding in a hemispherical shape is formed upward along the axis of the annular groove 11;
as shown in fig. 2 and 3, the male buckle 2 is composed of a male buckle body 22 and an expansion part 21, the expansion part 21 is a cylindrical sealed cavity with a slightly outwardly convex arc-shaped middle part, the outer side wall and the lower end wall of the cylindrical sealed cavity of the expansion part 21 are both made of flexible materials with elastic expansion performance, a through hole 211 is formed in the axis of the upper end of the expansion part 21, a check valve 23 is arranged in the through hole 211, a scissor-type control rod 24 is arranged upwards along the check valve 23, the scissor-type control rod 24 is arranged in the cylindrical cavity of the male buckle body 22, two control buttons 241 are formed by horizontally extending towards opposite directions at the upper end of the scissor-type control rod 24, and the two control buttons 241 are arranged by protruding out of the outer peripheral side of the male buckle body 22. When the male buckle 2 is inserted into the female buckle 1 for meshing, the expansion part 21 is controlled by the one-way valve 23 to form a sealed cavity, when the expansion part 21 is contacted with the pressing part 12 of the female buckle 1 and is pressed by the pressing part 12, the air pressure in the expansion part 21 is increased, the raised air pressure makes the peripheral side wall of the expansion part 21 expand outwards, the peripheral side wall of the expanded expansion part 21 is abutted against the inner wall of the annular groove 11 of the female buckle 1 and is clamped in the annular groove 11, and the male buckle 2 is meshed with the female buckle 1; when the male buckle 2 and the female buckle 1 need to be separated and opened, the two control buttons 241 are pressed simultaneously, the lower end of the scissor-type control rod 24 moves downwards to jack the one-way valve 23, air in the expansion part 21 is released, the outer side wall of the expansion part 21 contracts to be separated from the inner wall of the annular groove 11 of the female buckle 1, and the male buckle 2 and the female buckle 1 are separated.
Further, as shown in fig. 2, the lower end wall of the expansion part 21 of the male buckle 2 is in a disc shape, and the wall thickness of the lower end wall of the disc-shaped expansion part 21 is larger than that of the outer side wall of the expansion part 21; the lower end wall of the relatively thickened expansion portion 21 is relatively increased in pressure-receiving capacity when the expansion portion 21 is deformed under pressure, and the outer peripheral side of the expansion portion 21, which is relatively weak in pressure-receiving capacity, is smoothly deformed.
Further, as shown in fig. 2, a spherical groove 212 is formed upward on the axial center of the lower end surface of the lower end wall of the expansion part 21 of the male buckle 2, and the spherical groove 212 is arranged corresponding to the hemispherical protrusion of the pressing part 12 of the female buckle 1; the spherical concave grooves 212 and the hemispherical protrusions of the pressing portion 12 have a positioning function when the pressing portion 12 presses the expansion portion 21, and the positioning function prevents the outer periphery of the expansion portion 21 from being deviated when the outer periphery of the expansion portion 21 is pressed and deformed, and enables the outer periphery of the expansion portion 21 to be uniformly pressed.
Further, as shown in fig. 2 and 3, an arc-shaped tip 242 is formed at the lower end of the scissor-type control lever 24, and the arc-shaped tip 242 abuts against the check valve 23; the rounded tip 242 prevents the check valve 23 from being damaged when the check valve 23 is pushed downward.
Further, as shown in fig. 4 and 5, two control buttons 241 on the upper end of the scissor-type control lever 24 are provided with a return spring 243, and the return spring 243 is installed in an installation hole 221 formed on the inner side wall of the male buckle body 22.
The working principle of the invention is as follows:
in the technical scheme, when the male buckle 2 is inserted into the female buckle 1 for meshing, the expansion part 21 at the lower end of the male buckle 2 is in contact with the pressing part 12 of the female buckle 1, and under the condition that the male buckle 2 is continuously inserted downwards, the pressing part 12 of the female buckle 1 blocks the expansion part 21 to move downwards, and presses the expansion part 21 through a counterforce, so that the outer periphery of the expansion part 21 is expanded outwards to be abutted against the inner wall of the annular groove 11 of the female buckle 1, and the male buckle 2 is meshed with the female buckle 1; when the male buckle 2 and the female buckle 1 need to be separated and opened, the two control buttons 241 are pressed simultaneously, the lower end of the scissor-type control rod 24 moves downwards to jack the one-way valve 23, air in the expansion part 21 is released, the outer side wall of the expansion part 21 is contracted to be separated from the inner wall of the annular groove 11 of the female buckle 1, and the male buckle 2 and the female buckle 1 are separated.
Claims (5)
1. A pneumatic snap fastener comprising: male and female buttons; the method is characterized in that: the front end of the male buckle is provided with an expansion part made of flexible materials, and the expansion part is pressed to deform and clamped in the female buckle receiving cavity after being inserted into the female buckle, so that the male buckle and the female buckle are meshed; an annular groove is formed in the lower portion of the inner wall of the female buckle receiving cavity towards the outer peripheral side, the annular groove is arranged in a semicircular arc shape towards the outer side, and a hemispherical convex pressing portion is formed upwards along the axis of the annular groove; the pin thread comprises pin thread body and expansion part, this expansion part is the protruding cylindric seal chamber of the outside arc of middle part slightly, the cylindric seal chamber lateral wall of this expansion part and lower terminal wall are the flexible material that has elastic expansion performance and make, the through-hole has been seted up to this expansion part upper end axle center department, this through-hole department is provided with the check valve, upwards be provided with along the check valve and cut the fork control lever, this is cut the fork control lever and is set up in the pin thread body is the pipe form cavity, its upper end is formed with two control button towards opposite direction horizontal extension respectively, these two control button all outstanding survey the setting in pin thread body periphery.
2. A pneumatic snap fastener according to claim 1, characterized in that: the lower end wall of the expansion part of the male buckle is in a disc shape, and the wall thickness of the lower end wall of the disc-shaped expansion part is larger than that of the outer side wall of the expansion part.
3. A pneumatic snap fastener according to claim 2, characterized in that: the lower end surface of the lower end wall of the expansion part of the male buckle is axially and upwards provided with a spherical groove, and the spherical groove is arranged corresponding to the hemispherical bulge of the pressing part of the female buckle.
4. A pneumatic snap fastener according to claim 3, characterized in that: the lower end of the scissor type control rod is provided with an arc-shaped end which is abutted against the one-way valve.
5. A pneumatic snap fastener according to claim 4, characterized in that: two control buttons at the upper end of the scissor-type control rod are provided with return springs, and the return springs are installed in installation holes formed in the side wall of the male buckle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910136506.8A CN109770482B (en) | 2019-02-25 | 2019-02-25 | Pneumatic clamping snap fastener |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910136506.8A CN109770482B (en) | 2019-02-25 | 2019-02-25 | Pneumatic clamping snap fastener |
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| CN109770482A CN109770482A (en) | 2019-05-21 |
| CN109770482B true CN109770482B (en) | 2021-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910136506.8A Active CN109770482B (en) | 2019-02-25 | 2019-02-25 | Pneumatic clamping snap fastener |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110347219B (en) * | 2019-06-18 | 2020-08-04 | 安徽心里程科技有限公司 | Multi-functional industrial computer based on internet safety |
| CN110279170B (en) * | 2019-07-05 | 2020-12-15 | 安徽天威羊绒制品有限公司 | Blended woolen sweater |
| CN110694191A (en) * | 2019-11-13 | 2020-01-17 | 上海鹰格安防设备有限公司 | Mask bypass atmosphere device and fire-fighting air respirator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3750822A (en) * | 1970-08-13 | 1973-08-07 | W Dubach | Closure for containers, and more particularly for jars, bottles cans and the like |
| CN200938881Y (en) * | 2006-08-11 | 2007-08-29 | 郭国喜 | Easy-sewing button |
| KR20110132712A (en) * | 2010-06-03 | 2011-12-09 | 조휘성 | A stopper of bottle |
| CN105346826A (en) * | 2015-11-28 | 2016-02-24 | 庄奕虹 | Improved inflatable bottle plug |
-
2019
- 2019-02-25 CN CN201910136506.8A patent/CN109770482B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3750822A (en) * | 1970-08-13 | 1973-08-07 | W Dubach | Closure for containers, and more particularly for jars, bottles cans and the like |
| CN200938881Y (en) * | 2006-08-11 | 2007-08-29 | 郭国喜 | Easy-sewing button |
| KR20110132712A (en) * | 2010-06-03 | 2011-12-09 | 조휘성 | A stopper of bottle |
| CN105346826A (en) * | 2015-11-28 | 2016-02-24 | 庄奕虹 | Improved inflatable bottle plug |
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| CN109770482A (en) | 2019-05-21 |
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Address after: 232068 5th Floor, No. 2 Building, Jianghuaiyun Building, Taikang Street, Huainan High-tech Zone, Anhui Province Applicant after: Huainan Guandong Information Technology Co.,Ltd. Address before: 232068 5th Floor, No. 2 Building, Jianghuaiyun Building, Taikang Street, Huainan High-tech Zone, Anhui Province Applicant before: HUAINAN INTELLECTUAL PROPERTY INNOVATION TECHNOLOGY RESEARCH Co.,Ltd. |
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Effective date of registration: 20230508 Address after: Room 210, Baten Zhongchuang Space, Fund Building 3, Building E1, Phase II, Innovation Industrial Park, No. 2800 Innovation Avenue, High tech Zone, Hefei City, Anhui Province, 230088 Patentee after: Hefei Xiaoshang Electronic Technology Co.,Ltd. Address before: 232068 5th Floor, No. 2 Building, Jianghuaiyun Building, Taikang Street, Huainan High-tech Zone, Anhui Province Patentee before: Huainan Guandong Information Technology Co.,Ltd. |