CN218882716U - Plastic fastener - Google Patents
Plastic fastener Download PDFInfo
- Publication number
- CN218882716U CN218882716U CN202222853266.3U CN202222853266U CN218882716U CN 218882716 U CN218882716 U CN 218882716U CN 202222853266 U CN202222853266 U CN 202222853266U CN 218882716 U CN218882716 U CN 218882716U
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- China
- Prior art keywords
- elastic self
- plastic fastener
- locking structures
- locking
- fastener
- Prior art date
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- 239000004033 plastic Substances 0.000 title claims abstract description 32
- 229920003023 plastic Polymers 0.000 title claims abstract description 32
- 238000004873 anchoring Methods 0.000 claims abstract description 29
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 239000000428 dust Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000011133 lead Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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- Insertion Pins And Rivets (AREA)
Abstract
A plastic fastener includes an anchor portion and a clinch portion connected to the anchor portion. The anchoring part comprises a body, a containing groove arranged on the body and at least two elastic self-locking structures arranged on the containing groove. The elastic self-locking structure extends towards the outer side of the body so that the free end of the elastic self-locking structure extends out of the side wall of the body. When the elastic self-locking structure is compressed by external force, the elastic self-locking structure is contracted in the accommodating groove. Joint portion with the free end interval of elasticity auto-lock structure sets up, joint portion include one with the joint dish that anchor portion interval set up to and a cover establish sealing washer on the joint dish. When the fastener is used for fastening accessories, the fastener is convenient to use, excellent in stability and good in sealing performance.
Description
Technical Field
The utility model relates to a fastener technical field, in particular to plastic fastener.
Background
Fasteners are a class of mechanical parts used for fastening connections and are used in a very wide variety of applications. The fastener has wide application industries, including energy, electronics, electrical appliances, machinery, chemical industry, metallurgy, dies, hydraulic industry and the like, and various fasteners can be seen on various machines, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemical industry, instruments, supplies and the like.
Conventional fastening means now typically employ self-tapping screws, bolts, and the like. These fasteners are used by tapping a mating internal thread in a preformed hole in the fitting or by screwing a nut onto a threaded rod to complete the assembly. The main problems of the existing fastener in the assembling process are as follows: need cooperation instruments such as cross in the assembling process criticize, a word criticize, spanner to cooperate, simultaneously after the assembly is accomplished, because accessory junction leakproofness is not good, easy tiny particle such as water, dust invades, or because the vibrations among the peripheral environment to lead to the steadiness that the accessory is connected poor, the junction is easy to be corroded the damage.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a plastic fastener that can solve the above problems.
A plastic fastener includes an anchoring portion and a clamping portion connected to the anchoring portion. The anchoring part comprises a body, a containing groove arranged on the body and at least two elastic self-locking structures arranged on the containing groove. The elastic self-locking structure extends towards the outer side of the body so that the free end of the elastic self-locking structure extends out of the side wall of the body, and when the elastic self-locking structure is compressed by external force, the elastic self-locking structure is contracted in the accommodating groove. The clamping portion and the free end of the elastic self-locking structure are arranged at intervals.
Furthermore, the body is square pole, anchor portion includes two elasticity auto-lock structures, two elasticity auto-lock structure sets up on two relative lateral walls of body, along on the cross-section of body center pin the shape that the outline line of elasticity auto-lock structure formed is right trapezoid.
Furthermore, the clamping portion comprises a clamping disc and a sealing ring, wherein the clamping disc is arranged at an interval with the anchoring portion, and the sealing ring is sleeved on the clamping disc.
Further, the sealing ring has an inclined edge extending toward the anchoring portion.
Further, the anchoring portion further includes an introduction portion provided on the other side with respect to the catching portion.
Further, the introduction portion is frustum-shaped.
Further, the body is a square rod, the anchoring part comprises two elastic self-locking structures, and the two elastic self-locking structures are arranged on two opposite side edges of the body.
Furthermore, the elastic self-locking structures are arranged at equal intervals and angles by taking the central axis of the body as a central axis.
Furthermore, the shape formed by the contour line of the elastic self-locking structure on the section perpendicular to the central axis of the body is a triangle, and one vertex of the triangle is superposed with the prismatic shape of the body.
Compared with the prior art, the utility model provides an among the plastic fastener, its design through to the anchor portion for when this plastic fastener fastening two by the mounting so that its fastening connection together, not only convenient to use connects firmly difficult not hard up, and the junction has good leakproofness moreover, can prevent effectively that the junction from being invaded by tiny foreign matter such as water, dust. Specifically, the anchoring part comprises at least two elastic self-locking structures arranged on the accommodating groove. The elastic self-locking structure extends towards the outer side of the body so that the free end of the elastic self-locking structure extends out of the side wall of the body, and therefore a clamping end is formed. During the process that the fastening piece fastens two fastened pieces and is pushed into the fastening hole, the elastic self-locking structure is subjected to external force from the pressing of the fastening piece, so that the elastic self-locking structure is compressed in the receiving groove. And work as after the assembly is accomplished to the plastics fastener, this moment elasticity auto-lock structure no longer receives the extrusion external force that comes from the fastener, elasticity auto-lock structure follows pop out in the storage groove to with at least two by the fastener fastening joint portion with between the free end of elasticity auto-lock structure, just joint portion include one with the joint dish that anchor portion interval set up, thereby make the accessory accomplish the fastening back, towards joint portion direction quilt the unable removal of joint dish fastening is being towards the unable free end fastening of elasticity auto-lock structure of anchor portion direction quilt resume the original shape can't withdraw from and reach the fastening purpose. Meanwhile, the clamping part is also provided with a sealing ring sleeved on the clamping disc. The sealing washer has one towards the slope border that anchor portion extends to can cover effectively by the joint gap of fastener junction, prevent that the junction from being invaded by tiny foreign matter such as water, dust and leading to connecting failure or causing the damage.
Drawings
Fig. 1 is an exploded schematic view of a plastic fastener according to a first embodiment of the present invention.
Fig. 2 is a cross-sectional structural view of the plastic fastener of fig. 1.
Fig. 3 is a schematic view of the plastic fastener of fig. 1 in a cross-section perpendicular to the central axis of the body of the anchor.
Fig. 4 is a schematic structural view of a plastic fastener according to a second embodiment of the present invention.
Detailed Description
Specific examples of the present invention will be described in further detail below. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.
As shown in fig. 1 to 3, it is a schematic structural diagram of a plastic fastener according to a first embodiment of the present invention. The plastic fastener includes an anchoring portion 10, and a catching portion 20 connected to the anchoring portion 10. It is contemplated that the fastener may also include other functional structures, such as a finish disposed on the surface of the fastener, which is well known to those skilled in the art and will not be described further herein.
The anchoring part 10 comprises a body 11, a receiving groove 12 arranged on the body 11, and at least two elastic self-locking structures 13 arranged on the receiving groove 12. The body 11 can be square pole and make by the plastics material, and its axial dimensions can set up according to actual needs. The accommodating groove 12 is formed in the body 11 and is used for accommodating an elastic self-locking structure 13 for accommodating and retracting. Therefore, the receiving recess 12 is preferably shaped and sized to receive the elastic self-locking structure 13. In the present embodiment, the receiving grooves 12 are opened on two opposite side walls of the body 11, but it is of course conceivable that the receiving grooves 12 may also be opened on any two adjacent side walls of the body 11. During manufacturing, the receiving groove 12 may be formed in a core-pulling manner, so that a through groove may be formed in the receiving groove 12 along the axial direction of the body 11, so as to facilitate core-pulling manufacturing.
One end of the elastic self-locking structure 13 is fixed on the accommodating groove 12, so that a cantilever structure is formed, and an elastic piece is further formed, specifically, the elastic self-locking structure 13 extends towards the outer side of the body 11, so that the free end of the elastic self-locking structure 13 extends out of the side wall of the body 11, and the free end of the elastic self-locking structure 13 forms a clamping end. When the fixing hole is inserted, the clamping end of the elastic self-locking structure 13 can be compressed back. When the insertion is completed, the clamping end and the clamping portion 20 can fix at least two fixed members together. The elastic self-locking structure 13 is elastic and can be contracted towards the receiving groove 12, so that the elastic self-locking structure 13 is contracted in the receiving groove 12 when compressed by an external force. The two elastic self-locking structures 13 are arranged on two opposite side walls of the body 11, and the shape formed by the contour lines of the elastic self-locking structures 13 on the section along the central axis of the body 11 can be a right trapezoid. The free end of the elastic self-locking structure 13 and the clamping portion 20 are arranged at intervals, so that the fixed part can be clamped between the free end of the elastic self-locking structure 13 and the clamping portion 20.
The anchoring part 10 further includes an introduction part 14 provided at the other side with respect to the catching part 20 and functioning to guide or guide to be inserted into the insertion hole of the fixed member, so that the introduction part 14 may have a frustum shape and a central axis of the introduction part 14 coincides with a central axis of the body 11.
The clamping portion 20 includes a clamping disk 21 spaced from the anchoring portion 10, and a sealing ring 22 sleeved on the clamping disk 21. The chuck plate 21 has a disk shape and is coupled to one side of the anchoring part 10. The center axis of the chuck 21 coincides with the center axis of the anchor portion 10. The sealing ring 22 has an inclined edge extending toward the anchoring portion 10, and the sealing ring 22 is made of rubber and is annular. When the fastener accomplishes accessory fastening back, sealing washer 22 hugs closely in joint gap department, provides good leakproofness for the connection of accessory, has prevented effectively that the junction from being invaded by tiny foreign matter such as water, dust, and lead to sealed inefficacy, has prolonged the life of this fastener.
Compared with the prior art, the utility model provides an among the plastic fastener, its design through to anchor portion 10 for when this plastic fastener fastening two by the mounting so that its fastening connection is together, not only convenient to use connects firmly not easily not hard up, and the junction has good leakproofness moreover, can prevent effectively that the junction from being invaded by tiny foreign matter such as water, dust. Specifically, the anchoring portion 10 includes at least two elastic self-locking structures 13 disposed on the receiving groove 12. The elastic self-locking structure 13 extends out towards the outer side of the body 11 so that the free end of the elastic self-locking structure 13 extends out of the side wall of the body 11, thereby forming a clamping end. During the process that the fastening member fastens two fastened members and is pushed into the fastening hole, the elastic self-locking structure 13 is subjected to an external force from the pressing of the fastening member, thereby being compressed in the receiving groove 13. And after the plastic fastener is assembled, the elastic self-locking structure 13 does not receive an external extrusion force from the fastener any more, the elastic self-locking structure 13 pops out from the receiving groove 12, so that at least two fastened members are fastened between the clamping portion 10 and the free end of the elastic self-locking structure 13, and the clamping portion 20 comprises a clamping disk 21 which is arranged at an interval with the anchoring portion 10, so that after the accessory is fastened, the fastened parts are fastened by the clamping disk 21 in the direction of the clamping portion 20 and cannot move, and the fastened parts are fastened by the free end of the elastic self-locking structure 13 which recovers the original shape in the direction of the anchoring portion 10 and cannot exit, so as to achieve the fastening purpose. Meanwhile, the clamping portion 20 is further provided with a sealing ring 22 sleeved on the clamping disc 21. The sealing ring 22 has an inclined edge extending toward the anchoring portion 10, so that a connecting gap at a joint of a fastened member can be effectively covered, and the joint is prevented from being damaged or failed due to intrusion of fine foreign matters such as water and dust.
Fig. 4 is a schematic structural diagram of a plastic fastener according to a second embodiment of the present invention. The plastic fastener includes an anchoring portion 30, and a catching portion 40 connected to the anchoring portion 30. The anchoring portion 30 also includes a body 31, a receiving recess 32 formed in the body 31, and at least two elastic self-locking structures 33 formed in the receiving recess 32. The second embodiment differs from the first embodiment only in the position of the resilient self-locking mechanism 33. In the first embodiment, the elastic self-locking structure 13 is disposed on a side wall of the body 11. In the second embodiment, the elastic self-locking structure 33 and the receiving groove 32 are both disposed on the lateral edge of the body 31, which is advantageous for manufacturing but has relatively low strength. Specifically, in this embodiment, the elastic self-locking structures 33 are arranged at equal intervals with the central axis of the body 31 as the central axis, the shape formed by the contour lines of the elastic self-locking structures 33 on the cross section perpendicular to the central axis of the body 31 is a triangle, and one vertex of the triangle coincides with the prism of the body 31, so that the plastic fastener is uniformly stressed.
The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention, and any modification, equivalent replacement or improvement within the spirit of the present invention is encompassed by the claims of the present invention.
Claims (9)
1. A plastic fastener characterized by: the plastic fastener comprises an anchoring portion and a clamping portion connected with the anchoring portion, the anchoring portion comprises a body, a containing groove formed in the body and at least two elastic self-locking structures arranged on the containing groove, the elastic self-locking structures extend towards the outer side of the body to enable free ends of the elastic self-locking structures to extend out of the side wall of the body, when the elastic self-locking structures are compressed in the containing groove when external pressure is applied to the elastic self-locking structures, and the clamping portion and the free ends of the elastic self-locking structures are arranged at intervals.
2. The plastic fastener as claimed in claim 1 wherein: the body is square pole, anchor portion includes two elasticity auto-lock structures, two elasticity auto-lock structure sets up on two relative lateral walls of body, along on the cross-section of body center pin the shape that the outline line of elasticity auto-lock structure formed is right trapezoid.
3. The plastic fastener as claimed in claim 1 wherein: the joint portion include one with the joint dish that the anchor portion interval set up to and a cover establish sealing washer on the joint dish.
4. A plastic fastener as defined in claim 3 wherein: the sealing ring has an inclined edge extending towards the anchoring portion.
5. The plastic fastener as claimed in claim 1 wherein: the anchoring part further comprises an introduction part arranged on the other side relative to the clamping part.
6. The plastic fastener as claimed in claim 5 wherein: the leading-in part is frustum-shaped.
7. The plastic fastener as claimed in claim 1 wherein: the body is a square rod, the anchoring part comprises two elastic self-locking structures, and the two elastic self-locking structures are arranged on two opposite side edges of the body.
8. The plastic fastener as claimed in claim 7 wherein: the elastic self-locking structures are arranged at equal intervals and angles by taking the central shaft of the body as a central shaft.
9. The plastic fastener as claimed in claim 7 wherein: the shape formed by the contour line of the elastic self-locking structure on the section perpendicular to the central axis of the body is a triangle, and one vertex of the triangle is superposed with the prism of the body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222853266.3U CN218882716U (en) | 2022-10-27 | 2022-10-27 | Plastic fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222853266.3U CN218882716U (en) | 2022-10-27 | 2022-10-27 | Plastic fastener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218882716U true CN218882716U (en) | 2023-04-18 |
Family
ID=85942475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222853266.3U Active CN218882716U (en) | 2022-10-27 | 2022-10-27 | Plastic fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218882716U (en) |
-
2022
- 2022-10-27 CN CN202222853266.3U patent/CN218882716U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 314100 Building 2, 99 Lingxiu Branch Road, Luoxing street, Jiashan County, Jiaxing City, Zhejiang Province Patentee after: Zhejiang Hangong Intelligent Industry Co.,Ltd. Country or region after: China Address before: 314100 Building 2, 99 Lingxiu Branch Road, Luoxing street, Jiashan County, Jiaxing City, Zhejiang Province Patentee before: JIAXING HANGONG AUTOMOBILE FASTENER CO.,LTD. Country or region before: China |
|
| CP03 | Change of name, title or address |