CN111609013A

CN111609013A - Retaining rivet and antenna

Info

Publication number: CN111609013A
Application number: CN202010475583.9A
Authority: CN
Inventors: 文海能; 杨仲恺; 姚化山
Original assignee: Comba Telecom Technology Guangzhou Ltd
Current assignee: Comba Telecom Technology Guangzhou Ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2020-09-01

Abstract

The invention provides a backstop rivet and an antenna, and the technical scheme is that the backstop rivet comprises a pin and a pin sleeve, a pin hole for the pin to penetrate through is formed in the pin sleeve, the outer wall of one end of the pin sleeve protrudes to form an extending part, the other end of the pin sleeve forms a tensioning part which can be elastically turned outwards and can form clamping action together with the extending part, a backstop part which can enable the tensioning part to be turned outwards when the pin is inserted into the pin hole is formed in the protruding part of the inner wall of the tensioning part, and a locking part which is in clamping fit with the backstop part to limit the pin to retreat from the pin hole is arranged on the outer side wall of the pin. When the pin inserts to the pinhole in, the pin makes the tensioning part outwards turn over a book with stopping portion interact, and the locking portion on the pin outer wall forms the joint effect with the stopping portion on the uide bushing, and the elastic restoring force of the mutual acting force of tensioning portion and plate and tensioning portion makes stopping portion and locking portion keep the joint state to the restriction pin breaks away from in the uide bushing, has improved the stability of fix with rivet effect.

Description

Retaining rivet and antenna

Technical Field

The invention relates to the technical field of mobile communication, in particular to a backstop type rivet and an antenna.

Background

At present, the assembly mode of each inside part of antenna is fixed through plastic rivet mostly, and plastic rivet structure comprises pin and cotter pin two parts roughly, and the pin makes the cotter pin bloated in order to fix two parts that need to connect through the extrusion cotter pin, and pin and cotter pin maintain the assembly form through extrusion friction in order to reach the fixed part effect, and the extrusion face is the contact of point face mostly, and the pin breaks away from with the cotter pin because vibration easily in the antenna transportation, and fixed effect is unstable.

Disclosure of Invention

The invention aims to provide a retaining rivet which can prevent a pin from being separated from a pin sleeve so as to improve the fixing effect.

Another object of the present invention is to provide an antenna using the above rivet.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a stopping type rivet for pass two at least plates of treating the connection and make its reciprocal anchorage, including pin and cotter, it can supply to have seted up in the cotter the pinhole that the pin penetrated, just the one end outer wall protrusion of cotter forms extension, its other end form can turn over to outer elasticity turn over and with extension forms the tensioning portion of clamping action jointly, the protrusion forms the stopping portion that can make the tensioning portion turn over to the outside when the pin inserts in the pinhole on the inner wall of tensioning portion, be equipped with on the lateral wall of pin with thereby stopping portion joint cooperation restriction the pin is followed the locking portion that withdraws from in the pinhole.

Further setting: the locking portion comprises a locking groove which is formed in the outer side wall of the pin and can be used for embedding the stopping portion.

Further setting: stopping portion includes interconnect's guide face and stopping face, the guide face is used for order about tensioning portion when the pin inserts in the pinhole and turn over outwards, the stopping face is used for thereby stopping portion embedding locking inslot back cooperates the restriction pin with the inner wall joint in locking groove and withdraws from the pinhole.

Further setting: the locking groove include with stopping face joint complex locking wall, the locking wall perpendicular to the lateral wall of pin, the stopping face can be in when stopping portion embedding locking inslot is on a parallel with the locking wall.

Further setting: the guide surface can be abutted against the bottom wall of the locking groove to form surface-surface contact when the retaining part is embedded into the locking groove.

Further setting: the outer side wall of the pin can be abutted against the inner side wall of the pin hole after the pin is inserted into the pin hole.

Further setting: the locking groove extends along the circumferential direction of the pin to form an annular groove.

Further setting: the side wall of the tensioning part is provided with at least two forked notches extending along the length direction of the pin sleeve, and the forked notches divide the tensioning part into a plurality of tensioning pieces capable of being elastically turned outwards.

Further setting: the protruding spacing portion that forms on the one end outer wall of pin can insert the pin downthehole back with the extension portion butt.

The invention also provides an antenna which comprises at least two mutually overlapped plates and the backstop rivet, wherein the backstop rivet is arranged on each plate, a mounting hole for the backstop rivet to pass through is formed in each plate, and the backstop rivet passes through the mounting hole and clamps and fixes the plates by means of the extension parts and the tensioning parts.

Compared with the prior art, the scheme of the invention has the following advantages:

1. in the retaining rivet, when the pin is inserted into the pin hole, the pin interacts with the retaining part on the inner wall of the pin hole to force the tensioning part to elastically fold outwards, the locking part on the outer wall of the pin and the retaining part on the pin sleeve form a clamping effect, when the rivet is installed on a plate, the tensioning part outwards stretches to form a clamping effect on the plate, and the interaction force of the tensioning part and the plate and the elastic restoring force of the tensioning part enable the retaining part and the locking part to keep a clamping state, so that the pin is limited to be separated from the pin sleeve, and the stability of the rivet fixing effect is improved.

2. In the retaining rivet, when the retaining part is embedded into the locking groove, the retaining surface on the retaining part is parallel to the locking wall in the locking groove, so that the maximum contact area of the retaining surface and the locking wall is ensured, and a better retaining effect is achieved.

3. In the antenna related to the invention, the backstop type rivet is adopted, the pin and the pin sleeve are prevented from being separated from the pin sleeve by virtue of the matched structure of the backstop part and the locking part, the connection stability of the pin and the pin sleeve is higher, in addition, as the rivet realizes the fixing effect on the plate by virtue of the extension part and the tensioning part on the pin sleeve, when the whole rivet is subjected to axial force, the stress is mainly concentrated at the contact positions of the extension part and the tensioning part with the plate, the axial force on the pin is smaller, and the pin is not easy to separate from the pin sleeve, thereby better ensuring the fixing effect of the rivet.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of a connection structure of a retaining rivet and a plate member according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a pin according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of a pin sleeve in an embodiment of the present invention;

FIG. 4 is a bottom view of a pin sleeve in an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.

As shown in fig. 1, the present invention provides an antenna, which includes at least two stacked plates 1, and further includes a non-return rivet 2 for fixing at least two of the plates 1, where in the structure shown in this embodiment, the non-return rivet 2 is used to fix two plates 1, and in other embodiments, the non-return rivet 2 may also be used to fix more than two plates 1. The plate 1 is provided with a mounting hole 11 for the retaining rivet 2 to pass through, and the retaining rivet 2 passes through the mounting hole 11 and then fixes the plate 1.

Further, the retaining rivet 2 includes a pin 21 and a pin sleeve 22, in this embodiment, the pin 21 and the pin sleeve 22 are both integrally injection-molded, and both can be assembled together in advance, which is convenient for packaging and transporting the product, in other embodiments, the pin sleeve 22 can be integrally injection-molded, and the pin 21 is made of metal material. By adopting the integral injection molding, the material cost of the pin 21 and the pin sleeve 22 is lower, the molding speed is high, the production cost of the rivet 2 can be well controlled, and in addition, the plastic rivet 2 is arranged in the antenna, so that the influence on the performance of the antenna can be avoided.

The pin sleeve 22 is provided with a pin hole 221 for the pin 21 to penetrate through, and the pin hole 221 penetrates through along the length direction of the pin sleeve 22 and is located in the middle of the pin sleeve 22. An outer wall of one end of the pin sleeve 22 protrudes to form an outward extending portion 222, and the outward extending portion 222 is annular, so that the contact area when the pin sleeve 22 abuts against the plate 1 is increased. One end of the pin sleeve 22 far away from the extending part 222 forms a tensioning part 223 which can be elastically folded outwards and can form a clamping effect together with the extending part 222, the inner wall of the tensioning part 223 protrudes to form a stopping part 224 which can enable the tensioning part 223 to be folded outwards when the pin 21 is inserted into the pin hole 221, and the outer side wall of the pin 21 is provided with a locking part which is matched with the stopping part 224 in a clamping manner so as to limit the pin 21 to be retracted from the pin hole 221.

Referring to fig. 2 and 3, in this embodiment, when the pin 21 is not inserted into the pin sleeve 22, the outer sidewall of the pin sleeve 22 is in a flat state, after the pin 21 is inserted into the pin sleeve 22, the head of the pin 21 first contacts with the retaining portion 224, the retaining portion 224 is pressed to drive the tensioning portion 223 to bend outwards and expand, and the tensioning portion 223 is pressed on the plate 1, so as to fix the plate 1. After the pin 21 is completely inserted into the pin hole 221, the retaining portion 224 is in clamping fit with the locking portion on the pin 21 to limit the pin 21 from exiting the pin hole 221, and the interaction force between the tensioning portion 223 and the plate 1 and the elastic restoring force of the tensioning portion 223 make the retaining portion 224 difficult to disengage from the locking portion in clamping fit, so that the connection stability of the pin 21 and the pin sleeve 22 is improved, namely, the connection stability of the rivet 2 and the plate 1 is improved.

In this embodiment, the locking portion includes a locking groove 211 opened on an outer side wall of the pin 21 and into which the retaining portion 224 is inserted, in this embodiment, the locking groove 211 extends along a circumference of the pin 21 to form an annular groove, and in other embodiments, a plurality of locking grooves 211 may be arranged at intervals along the circumference of the pin 21.

In other embodiments, the locking portion may be a locking block protruding from the outer wall of the pin 21, and when the pin 21 is inserted into the pin hole 221, the locking block may abut against the retaining portion 224 and push the tensioning portion 223 to expand outward, and after the tensioning portion 223 rebounds, the locking block and the retaining portion 224 are engaged with each other to form a snap structure, so as to limit the pin 21 from being released from the pin hole 221.

In this embodiment, the outer side wall of the pin 21 may abut against the inner side wall of the pin hole 221 after the pin 21 is inserted into the pin hole 221, and in other embodiments, the outer side wall of the pin 21 may not abut against the inner side wall of the pin hole 221. Through seting up locking groove 211 on the lateral wall of pin 21, locking groove 211 can supply the embedding of stopping portion 224 on the one hand, the inlay card cooperation stability of stopping portion 224 and locking groove 211 is higher, pin 21 is difficult for taking place the pine and takes off, on the other hand, when stopping portion 224 embedding locking groove 211, the outer wall of pin 21 and the inner wall butt of pinhole 221, can prevent that pin 21 from taking place to rock in pinhole 221 promptly, it rocks and leads to the possibility that pin 21 deviates from the uide bushing 22 in the transportation to reduce the antenna product production, and pin 21 and the area of contact of cotter bushing 22 increase, cotter bushing 22 also provides axial frictional force for pin 21, further improve the connection stability of pin 21 and cotter bushing 22.

Further, the stopping portion 224 includes a guide surface 2241 and a stopping surface 2242 connected to each other, the guide surface 2241 and the stopping surface 2242 form a bevel, and the stopping portion 224 has a triangular cross-sectional view. The guide surface 2241 is used for driving the tensioning portion 223 to be folded outwards when the pin 21 is inserted into the pin hole 221, and the stopping surface 2242 is used for being clamped and matched with the inner wall of the locking groove 211 after the stopping portion 224 is embedded into the locking groove 211 so as to limit the pin 21 from being pulled out of the pin hole 221. In other embodiments, the cross-sectional view of the retaining portion 224 may also be trapezoidal or arc-shaped.

Stopping portion 224 both can realize the function that drive tensioning part 223 opened outward, can also realize the fixed function with pin 21 joint, makes cotter 22 and round pin axle structurally more retrench, and guide face 2241 also makes pin 21 more laborsaving when inserting and strut tensioning part 223, has reduced the installation degree of difficulty, is favorable to improving production efficiency.

Further, the locking slot 211 includes a locking wall 2111 snap-fitted with the retaining surface 2242, the locking wall 2111 is perpendicular to the outer side wall of the pin 21, and the retaining surface 2242 may be parallel to the locking wall 2111 when the retaining portion 224 is inserted into the locking slot 211. In other embodiments, the locking wall 2111 may be inclined.

By forming the locking wall 2111 perpendicular to the outer side wall of the pin 21 in the locking groove 211, when the retaining portion 224 is inserted into the locking groove 211, the retaining surface 2242 abuts against the locking wall 2111 and is parallel to the locking wall 2111, the retaining surface 2242 and the locking wall 2111 keep the maximum contact area, the clamping stability of the retaining surface 2242 and the locking wall 2111 is high, meanwhile, the retaining portion 224 can be smoothly inserted into the locking groove 211 to realize clamping fit, and the convenience and the reliability of assembly are improved.

Preferably, the guide surface 2241 may abut against a bottom wall of the locking groove 211 to form a surface-to-surface contact when the retaining portion 224 is inserted into the locking groove 211, specifically, the bottom wall of the locking groove 211 and the outer side wall of the pin 21 are parallel to each other, and a side wall of the locking groove 211 away from the locking wall 2111 is in an arc-shaped gradual change structure from the outer side wall of the pin 21 to the bottom wall of the locking groove 211. In other embodiments, the guide surface 2241 may be in line-surface contact with the bottom wall of the locking groove 211. By appropriately adjusting the structure of the guide surface 2241 and the structure of the lock groove 211, the contact area between the guide surface 2241 and the lock groove 211 is increased when the retaining portion 224 is fitted into the lock groove 211, so that the effect of clamping the pin 21 by the pin bush 22 is improved, the pin 21 is prevented from coming out of the pin bush 22, and the stability of the effect of fixing the rivet 2 is further improved.

Further, a stopper 212 is formed on an outer wall of one end of the pin 21 to abut against the extension 222 after the pin 21 is inserted into the pin hole 221. In this embodiment, the position-limiting portion 212 covers the upper surface of the extension portion 222, and is in full contact with the upper surface of the extension portion 222. The outer peripheral walls of the limiting part 212 and the outer peripheral wall of the extending part 222 are both inclined, and the outer peripheral walls of the limiting part and the outer peripheral wall are in smooth transition. With this arrangement, when the pin 21 is inserted into the pin hole 221, the stopper portion 212 abuts against the outward extending portion 222 to restrict the pin 21 from further advancing into the pin hole 221, and at this time, the retaining portion 224 is also fitted into the lock groove 211 to restrict the pin 21 from retreating, thereby fixing the pin 21 and the pin boss 22 to each other. In addition, the stopper portion 212 covers the extended portion 222, so that the stopper portion 212 and the extended portion 222 can maintain the maximum contact area, the connection stability between the pin 21 and the pin bush 22 can be improved, the extended portion 222 can be shielded, and the overall appearance can be improved. Moreover, when the rivet 2 is assembled with the plate 1, the extending portion 222 on the pin sleeve 22 abuts against the plate 1, the limiting portion 212 of the pin 21 is not in direct contact with the plate 1, when the rivet 2 receives an axial force, the stress is concentrated on the contact positions of the extending portion 222 and the tensioning portion 223 with the plate 1, and the pin 21 cannot directly receive the axial force, so that the pin 21 is prevented from being separated from the pin sleeve 22, and the fixing effect of the rivet 2 is effectively ensured.

As shown in fig. 4, in this embodiment, at least two branched gaps 2231 extending along the length direction of the pin sleeve 22 are formed on the side wall of the tensioning portion 223, in this embodiment, four branched gaps 2231 are formed on the tensioning portion 223, the four branched gaps 2231 are distributed in a central symmetry manner relative to the pin sleeve 22, the branched gaps 2231 divide the tensioning portion 223 into a plurality of tensioning pieces 2232 capable of being elastically folded outwards, in this embodiment, the four branched gaps 2231 divide the tensioning portion 223 into four symmetrically arranged tensioning pieces 2232, and a retaining portion 224 is correspondingly disposed on the inner side wall of each tensioning piece 2232. In other embodiments, the tensioning portion 223 may also be divided into two, three, or more than four tensioning tabs 2232.

By uniformly dividing the tensioning portion 223 into a plurality of tensioning pieces 2232, when the pin 21 is inserted into the pin hole 221, the tensioning pieces 2232 are uniformly spread from a plurality of directions, so that the pin bush 22 abuts against the plate 1, and the reliability of connection between the pin bush 22 and the plate 1 is improved.

In summary, the scheme of the invention has the following advantages:

1. in the retaining rivet 2, when the pin 21 is inserted into the pin hole 221, the pin 21 interacts with the retaining part 224 on the inner wall of the pin hole 221 to force the tensioning part 223 to elastically fold outwards, the locking part on the outer wall of the pin 21 and the retaining part 224 on the pin sleeve 22 form a clamping action, when the rivet 2 is installed on the plate 1, the tensioning part 223 expands outwards to clamp the plate 1, the interaction force between the tensioning part 223 and the plate 1 and the elastic restoring force of the tensioning part 223 enable the retaining part 224 and the locking part to keep a clamping state, so that the pin 21 is limited to be separated from the pin sleeve 22, and the stability of the fixing effect of the rivet 2 is improved.

2. In the retaining rivet 2, when the retaining part 224 is embedded into the locking groove 211, the retaining surface 2242 on the retaining part 224 is parallel to the locking wall 2111 in the locking groove 211, so that the maximum contact area of the retaining surface 2242 and the locking wall 2111 is ensured, and a better retaining effect is achieved.

3. In the retaining rivet 2, when the rivet 2 is assembled with the plate 1, the extension part 222 on the pin sleeve 22 is abutted against the plate 1, the limiting part 212 of the pin 21 is not in direct contact with the plate 1, when the rivet 2 is subjected to axial force, the stress is concentrated on the contact positions of the extension part 222 and the tensioning part 223 with the plate 1, and the pin 21 is not directly subjected to the axial force, so that the pin 21 is prevented from falling out of the pin sleeve 22, and the fixing effect of the rivet 2 is effectively ensured.

The foregoing is only a partial embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a stopping type rivet for pass two at least plates that treat to connect and make its reciprocal anchorage, including pin and cotter, it can supply to have seted up in the cotter the pinhole that the pin penetrated, just the one end outer wall protrusion of cotter forms epitaxial portion, its other end form can to outer elasticity turn over and with the tensioning portion of clamping action is formed jointly to epitaxial portion, characterized by: the protruding stopping portion that forms and can make the tensioning portion outwards turn over when the pin inserts in the pinhole on the inner wall of tensioning portion, thereby be equipped with on the lateral wall of pin with thereby the restriction of stopping portion joint cooperation the pin is followed the locking portion that withdraws from in the pinhole.

2. The retaining rivet of claim 1, wherein: the locking portion comprises a locking groove which is formed in the outer side wall of the pin and can be used for embedding the stopping portion.

3. The retaining rivet of claim 2, wherein: stopping portion includes interconnect's guide face and stopping face, the guide face is used for order about tensioning portion when the pin inserts in the pinhole and turn over outwards, the stopping face is used for thereby stopping portion embedding locking inslot back cooperates the restriction pin with the inner wall joint in locking groove and withdraws from the pinhole.

4. A retaining rivet according to claim 3, wherein: the locking groove include with stopping face joint complex locking wall, the locking wall perpendicular to the lateral wall of pin, the stopping face can be in when stopping portion embedding locking inslot is on a parallel with the locking wall.

5. A retaining rivet according to claim 3, wherein: the guide surface can be abutted against the bottom wall of the locking groove to form surface-surface contact when the retaining part is embedded into the locking groove.

6. The retaining rivet of claim 2, wherein: the outer side wall of the pin can be abutted against the inner side wall of the pin hole after the pin is inserted into the pin hole.

7. The retaining rivet of claim 2, wherein: the locking groove extends along the circumferential direction of the pin to form an annular groove.

8. The retaining rivet of claim 1, wherein: the side wall of the tensioning part is provided with at least two forked notches extending along the length direction of the pin sleeve, and the forked notches divide the tensioning part into a plurality of tensioning pieces capable of being elastically turned outwards.

9. The retaining rivet of claim 1, wherein: the protruding spacing portion that forms on the one end outer wall of pin can insert the pin downthehole back with the extension portion butt.

10. An antenna, comprising at least two mutually superimposed plates, characterized in that: the anti-backing rivet comprises the anti-backing rivet according to any one of claims 1 to 9, wherein a mounting hole for the anti-backing rivet to pass through is formed in the plate, and the anti-backing rivet passes through the mounting hole and clamps and fixes a plurality of plates by means of the extending part and the tensioning part.