CN110552944A

CN110552944A - Anti-pulling lock rivet

Info

Publication number: CN110552944A
Application number: CN201910952735.7A
Authority: CN
Inventors: 缪建国; 邱晓东; 张靖山
Original assignee: WUXI ANSHIDA HARDWARE CO Ltd
Current assignee: WUXI ANSHIDA HARDWARE CO Ltd
Priority date: 2019-10-09
Filing date: 2019-10-09
Publication date: 2019-12-10

Abstract

The invention discloses an anti-pulling lock rivet which comprises a rivet pin, a rivet cap and a rivet sleeve, wherein the rivet cap is fixedly arranged at the top end of the rivet pin, the rivet sleeve is arranged on the outer surface of the rivet sleeve in a matched mode, two groups of symmetrical downward-cut grooves are formed in the lower end of the outer surface of the rivet sleeve, placing grooves are formed in two ends of the outer surface, close to the lower end, of the rivet pin, springs are fixedly arranged on the inner side inner walls of the placing grooves, anti-pulling blocks are fixedly arranged at one ends, facing outwards, of the springs and extend out of the rivet sleeve, clamping holes matched with the anti-pulling blocks are formed in two ends of the outer wall of the rivet sleeve, and limiting blocks for limiting the anti-pulling blocks are arranged at the upper end and. Has the advantages that: through the rivet round pin post that sets up prevent pulling out piece, spring, standing groove and rivet cover's card hole mutually support, when beating the rivet round pin post in the rivet cover completely, prevent pulling out the piece and block each other with the card hole of rivet cover completely, lock rivet round pin post and rivet cover, prevent that the rivet round pin post from being pulled out the rivet cover.

Description

anti-pulling lock rivet

Technical Field

The invention relates to the field of rivets, in particular to an anti-pull-out locking rivet.

Background

Rivets are nail-shaped articles used to connect two parts or components with through holes and a cap at one end. In riveting, the riveted parts are connected by self-deformation or interference. When the rivet fastener is required to be disassembled, the rivet is firstly pried loose by a screwdriver, force is uniformly applied to the periphery, and the rivet is upwards clamped by sharp-nose pliers after the rivet of the screwdriver is loosened to a gap, or the rivet connecting rod is pulled out after being cut off by a heavy-duty pliers, so that the rivet can be pulled out simply. However, in some special field devices, once the rivet is fixed, it cannot be pulled out, which causes safety accidents and property damage. However, there is no prior art that prevents the extraction of a blind rivet.

In order to solve the problems in the related art, an anti-pull lock rivet is provided.

Disclosure of Invention

Technical problem to be solved

aiming at the defects of the prior art, the invention provides an anti-pull lock rivet, which solves the problems in the background art.

(II) technical scheme

In order to solve the problems in the background art, the invention adopts the following specific technical scheme:

The utility model provides an anti-extraction lock rivet, includes rivet round pin post, rivet cap and rivet cover, the fixed rivet cap that is provided with in top of rivet round pin post, the supporting rivet cover that is provided with of surface of rivet cover, just the lower cut-out groove of two sets of symmetries is seted up to the surface lower extreme of rivet cover, the surface both ends that rivet round pin post is close to lower extreme position department have seted up the standing groove, just the inboard inner wall fixed mounting of standing groove has the spring, the spring has anti-pulling block to the one end fixed mounting in the outside, just anti-pulling block extends to in the rivet cover, the outer wall both ends of rivet cover seted up with anti-pulling block assorted card hole, both ends are provided with the stopper that the restriction was prevented pulling block about the surface of preventing pulling block.

Further, when the anti-pulling block extrusion spring is in a compressed state, the anti-pulling block is located inside the placing groove.

Furthermore, one end of the placing groove is provided with an opening hole, and the height and the width of the opening hole are the same as those of the anti-pulling block.

Furthermore, the limiting blocks at the upper end and the lower end of the outer surface of the pulling-proof block are just in contact with the upper end and the lower end of the inner wall of the placing groove, the height of the placing groove is larger than that of the opening hole, and the limiting blocks are clamped on the inner side of the opening hole.

Furthermore, the outward end of the pulling-proof block is inclined, and the inclined lower end of the pulling-proof block is limited by the limiting block and is positioned on the same vertical line with the inner wall of the rivet sleeve.

Furthermore, a plurality of groups of anti-rotation strips are fixedly arranged at two ends of the outer surface of the rivet sleeve, which is close to the lower end, and the anti-rotation strips are triangular with a wide upper part and a thin lower part.

(III) advantageous effects

Compared with the prior art, the invention provides an anti-pulling lock rivet, which has the following beneficial effects:

According to the rivet sleeve, the anti-pulling block of the rivet pin, the spring, the placing groove and the clamping hole of the rivet sleeve are matched with each other, the rivet sleeve is prevented from rotating in the fixing piece through the anti-rotating strip of the rivet sleeve, the rivet sleeve is further prevented from being pulled out, when the rivet pin is completely driven into the rivet sleeve, the anti-pulling block is completely clamped with the clamping hole of the rivet sleeve, the rivet pin and the rivet sleeve are locked, and the rivet pin is prevented from being pulled out of the rivet sleeve.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a perspective view of an anti-pullout blind rivet according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of the internal structure of an anti-pullout blind rivet according to an embodiment of the present invention;

Fig. 3 is an enlarged schematic view of the position a according to fig. 2.

In the figure:

1. A rivet pin; 2. a rivet cap; 3. a rivet sleeve; 4. a lower cutting groove; 5. an anti-rotation strip; 6. a clamping hole; 7. a placement groove; 8. a spring; 9. anti-pulling blocks; 10. and a limiting block.

Detailed Description

For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to enable others of ordinary skill in the art to understand the various embodiments and advantages of the invention, and, by reference to these figures, reference is made to the accompanying drawings, which are not to scale and wherein like reference numerals generally refer to like elements.

According to an embodiment of the present invention, an anti-pullout blind rivet is provided.

The invention will now be further described with reference to the accompanying drawings and detailed description, as shown in figures 1-3:

The anti-extraction blind rivet of this embodiment, including rivet round pin post 1, rivet cap 2 and rivet cover 3, the fixed rivet cap 2 that is provided with in top of rivet round pin post 1, the supporting rivet cover 3 that is provided with of surface of rivet cover 3 will rivet cover 3 squeeze into the mounting when using earlier, then squeeze into rivet cover 3 with rivet round pin post 1, rivet cap 2 stops in the outside.

In the anti-pulling lock rivet of the embodiment, the two ends of the outer surface of the rivet pin 1 near the lower end position are provided with the placing grooves 7, the inner wall of the placing groove 7 is fixedly provided with the spring 8, the outer end of the spring 8 facing outwards is fixedly provided with the anti-pulling block 9, one end of the placing groove 7 is provided with the opening hole, the height and the width of the opening hole are the same as those of the anti-pulling block 9, when the anti-pulling block 9 extrudes the spring 8 in a compression state, the anti-pulling block 9 is positioned in the placing groove 7, the two ends of the outer wall of the rivet sleeve 3 are provided with the clamping holes 6 matched with the anti-pulling block 9, the anti-pulling block 9 extends into the rivet sleeve 3 but does not exceed the clamping holes 6, the upper end and the lower end of the outer surface of the anti-pulling block 9 are provided with the limiting blocks 10 for limiting the anti-pulling block 9, the limiting blocks 10 at the upper end and the lower end of the outer, and the limiting block 10 is clamped at the inner side of the opening hole, the outward end of the pulling-proof block 9 is inclined, and the inclined lower end of the pulling-proof block 9 is limited by the limiting block 10 and is positioned on the same vertical line with the inner wall of the rivet sleeve 3.

The anti-pulling lock rivet of this embodiment, the lower cut groove 4 of two sets of symmetries is seted up to the surface lower extreme of rivet cover 3, and rivet cover 3 is close to the fixed a plurality of groups in surface both ends of lower extreme and prevents changeing strip 5, and prevents changeing strip 5 and be the thin triangle form about wide, after squeezing into the mounting completely with rivet cover 3, prevents rivet cover 3 at the mounting internal rotation, and then prevents that rivet cover 3 from being pulled out.

The working principle is as follows: will squeeze into the mounting with rivet bush 3 earlier when using, then squeeze into rivet bush 3 with rivet round pin post 1, squeeze into the in-process of rivet bush 3 at rivet round pin post 1, prevent that pull-out piece 9 receives the restriction of rivet bush 3, but because prevent that pull-out piece 9 is the slope form, when squeezing into, prevent that pull-out piece 9 can extrude and get into in standing groove 7, after meetting the card hole 6 of rivet bush 3, prevent that pull-out piece 9 can pop out because spring 8's effect, the card is in card hole 6, but because the continuation of rivet round pin post 1 is squeezed into, prevent that pull-out piece 9 continues to extrude and get into in standing groove 7, until prevent that pull-out piece 9 is at last rather than the card hole 6 complete block that corresponds, lock rivet round pin post 1 and rivet bush 3, prevent that rivet round pin post 1 from being extracted rivet bush 3.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. the utility model provides an anti-extraction blind rivet, its characterized in that, includes rivet round pin post (1), rivet cap (2) and rivet cover (3), the fixed rivet cap (2) that is provided with in top of rivet round pin post (1), the surface of rivet cover (3) is supporting to be provided with rivet cover (3), just the lower groove (4) of cutting open of two sets of symmetries, its characterized in that are seted up to the surface lower extreme of rivet cover (3): the rivet pin post (1) is close to the surface both ends of lower extreme position department and has seted up standing groove (7), just the inboard inner wall fixed mounting of standing groove (7) has spring (8), spring (8) one end fixed mounting to the outside has prevents shifting block (9), just prevent shifting block (9) and extend to in rivet cover (3), the outer wall both ends of rivet cover (3) are seted up and are prevented shifting block (9) assorted card hole (6), both ends are provided with stopper (10) that the restriction prevented shifting block (9) about preventing the surface of shifting block (9).

2. An anti-extraction blind rivet according to claim 1, characterized in that the anti-extraction block (9) is located inside the placement groove (7) when the anti-extraction block (9) presses the spring (8) in a compressed state.

3. An anti-extraction blind rivet according to claim 1, characterized in that the placement groove (7) is provided with an opening hole at one end, and the height and width of the opening hole are the same as those of the anti-extraction block (9).

4. the extraction-proof lock rivet as claimed in claim 3, wherein the limiting blocks (10) at the upper and lower ends of the outer surface of the extraction-proof block (9) are just in contact with the upper and lower ends of the inner wall of the placement groove (7), the height of the placement groove (7) is greater than that of the opening hole, and the limiting blocks (10) are clamped inside the opening hole.

5. An anti-extraction blind rivet according to claim 1, characterized in that the outward end of the anti-extraction block (9) is inclined, and the inclined lower end of the anti-extraction block (9) is limited by the limit block (10) and is located on the same vertical line with the inner wall of the rivet sleeve (3).

6. The extraction-proof lock rivet as claimed in claim 1, wherein the rivet sleeve (3) is provided with a plurality of sets of anti-rotation strips (5) at two ends of the outer surface close to the lower end, and the anti-rotation strips (5) are triangular with a wide top and a narrow bottom.