CN212297197U

CN212297197U - Plug-in ring groove rivet

Info

Publication number: CN212297197U
Application number: CN202020625366.9U
Authority: CN
Inventors: 邱晓东
Original assignee: Wuxi Anshida Hardware Co ltd
Current assignee: Wuxi Anshida Hardware Co ltd
Priority date: 2020-04-23
Filing date: 2020-04-23
Publication date: 2021-01-05
Anticipated expiration: 2030-04-23

Abstract

The utility model discloses a plug-in annular rivet, which comprises a rivet body and a rivet core, wherein the rivet body comprises a rivet edge, a straight hole, a plastic sleeve, a rivet body rod and a circular arc closing-in, the outer wall bottom end of the rivet body rod is fixedly connected with the rivet edge, the top surface center of the rivet body rod is provided with the straight hole, the inner wall of the straight hole is fixedly connected with the plastic sleeve and is pressed into the plastic sleeve through a locking convex tooth with the diameter larger than that of the plastic sleeve, so that the plastic sleeve is extruded and deformed, the convex card after the inner wall of the plastic sleeve is deformed is clamped into a step structure formed by the locking convex tooth and the locking concave tooth, the top of the plastic sleeve is limited and fixed by the circular arc closing-in, so that the rivet body and the rivet core are connected and fixed, the rivet core is provided with a rivet core breaking groove, the rivet core is convenient to break the rivet core, the device has simple structure and convenient use, can be used, and also has waterproof and shockproof functions.

Description

Plug-in ring groove rivet

Technical Field

The utility model relates to a riveting technical field specifically is a bayonet annular rivet.

Background

The ring groove rivet is used for riveting two structural members into a whole. The ring groove rivet body is composed of two parts, namely a ring groove rivet body and a rivet core. During riveting, insert the nail core earlier in by the nail hole of connecting piece, again from by the connecting piece another side with the nail body cover on the working section annular of nail core, then with the muzzle cover of specialized tool annular riveter on the clamping section annular of nail core, and support the muzzle against the nail body terminal surface, the pulling riveter, the riveter is about to the tight annular nail pole of the clamping section of nail core taut, at this moment, thereby compress tightly the riveting object, the internal wall of nail extrudes into in the working section annular of nail core, form new rivet head, until the fracture, thereby to being connected the piece riveting fastening. The device has the characteristics of convenient operation, high efficiency, low noise and good shock resistance, so the device is widely applied to the fields of various vehicles, ships, aviation, mechanical equipment, building structures and the like.

However, in the case of using the ring groove riveter, since the pressure regulating valve of the riveter must be set to a high pressure position, strong impact is applied, important parts are easily damaged, and the following problems occur. During pulling and riveting, the rivet head is required to be kept vertical to the surface of a workpiece, and sufficient pressure is applied to enable the rivet body to be attached to a riveting object; when the rivet-pulling type ring groove nail is riveted, the power of the power part and the rivet head of the rivet-pulling type ring groove nail are required to meet the requirements of the specification and the shape of the rivet; if the rivet head is not abutted to the structural member, the rivet head is not allowed to be abutted again; when the upsetting-riveting ring groove nail is riveted, the proper riveting brick is selected, otherwise, the nail body cannot be well buckled; the rivet gun is prevented from knocking and bruising the workpiece due to the rebound of the rivet gun when the rivet rod is broken.

At present, because the material and the hardness of a riveting object are gradually changed, even some riveting objects are made of thin aluminum plates and cannot bear too large force. Therefore, the annular groove rivet needs to be pulled and riveted without great force, and the development of an insertion type annular groove rivet is imperative.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an bayonet annular rivet to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

an insertion type ring groove rivet comprises a rivet body and a rivet core, wherein the rivet body comprises a riveting edge, a straight hole, a plastic sleeve, a rivet body rod and an arc closing-in, the bottom end of the outer wall of the rivet body rod is fixedly connected with the riveting edge, the center of the top surface of the rivet body rod is provided with the straight hole, and the inner wall of the straight hole is fixedly connected with the plastic sleeve;

the top fixedly connected with nail core head of nail core, and the body of rod from the top down of nail core has seted up four locking dogteeth and the locking tooth group, nail core breakpoint groove, the tooth of preventing falling and the antiskid tooth that three locking dogtooth is constituteed in proper order, four locking dogtooth equidistant setting, and seted up the locking dogtooth between the adjacent locking dogtooth, round annular groove has been seted up to nail core head, and annular groove encircles the setting of body of rod top, fixedly connected with annular straight-bar between nail core head and the body of rod top.

In a preferred embodiment, the top of straight hole is equipped with the circular arc binding off, the top of plastic sheath contacts with the bottom surface of circular arc binding off, and the top radius of circular arc binding off is less than the external diameter of plastic sheath, and is spacing with the top of plastic sheath, when guaranteeing to rivet, the locking dogtooth card is gone into in the plastic sheath, when exerting ascending pulling force to the plastic sheath, the plastic sheath can not pulled out.

In a preferred embodiment, the tooth face of the locking convex tooth and the rod body of the nail core form an axial angle, the top end of the tooth face of the locking convex tooth points to the edge of the head of the nail core outwards, the locking concave tooth is perpendicular to the side wall of the rod body of the nail core, and the locking concave tooth is in a step shape between the adjacent locking convex teeth, so that the locking concave tooth can be conveniently clamped into the bulge formed after the inner wall of the plastic sleeve deforms, and the locking force is improved.

In a preferred embodiment, the inner diameter of the plastic sleeve is matched with the outer diameter of the convex teeth of the anti-falling teeth, and when the nail core is slightly pushed into the nail body to the anti-falling teeth, the plastic sleeve cannot fall off.

In a preferred embodiment, the diameter of the locking convex tooth is larger than the diameter of the inner hole of the plastic sleeve, and the locking convex tooth can extrude and deform the inner wall of the plastic sleeve when the nail core is stressed and moves downwards along the inner wall of the plastic sleeve.

In a preferred embodiment, the diameter of the straight rod of the annular groove is the same as that of the rod of the nail body, so that the shearing force of the rivet in riveting an object can be improved, and the riveting firmness of the rivet is improved.

Compared with the prior art, the beneficial effects of the utility model are that: the locking convex tooth that is greater than the plastic sheath through the diameter is impressed in the plastic sheath, make the plastic sheath by extrusion deformation, protruding card after the plastic sheath inner wall warp is gone into in the stair structure that locking convex tooth and locking concave tooth formed, and the top of plastic sheath is by the spacing fixed of circular arc binding off, thereby it is fixed with the connection of the nail body and nail core, and be equipped with nail core breakpoint groove on the nail core, conveniently break the wick, this device simple structure, high durability and convenient use, can use under the condition that does not have riveter or operating space not enough, application scope is wide, and can rivet connection have intensity higher, still have waterproof and shockproof function.

Drawings

FIG. 1 is a cross-sectional view of a plug-in ring groove rivet.

FIG. 2 is a cross-sectional view of the shank of a plug-in ring groove rivet.

FIG. 3 is a cross-sectional view of the mandrel in a plug-in ring groove rivet.

FIG. 4 is an assembled view of a plug-in ring groove rivet.

Fig. 5 is an enlarged view of the structure at a in fig. 4.

Description of the figures

The nail comprises a nail body 1, a rivet edge 2, a straight hole 3, a plastic sleeve 4, a nail body rod 5, an arc closing-in 6, a nail core 7, an anti-slip tooth 8, an anti-falling tooth 9, a nail core breakpoint groove 10, a locking convex tooth 11, a locking concave tooth 12, a ring groove straight rod 13, a ring groove 14 and a nail core head 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, in the embodiment of the present invention, an insert-type ring groove rivet includes a rivet body 1 and a rivet core 7, referring to fig. 2, the rivet body 1 includes a rivet edge 2, a straight hole 3, a plastic sleeve 4, a rivet body rod 5 and a circular arc closing-in 6, the rivet body rod 5 is a circular cylindrical structure, the rivet edge 2 is fixedly connected to the bottom end of the outer wall of the rivet body rod 5, the straight hole 3 is formed in the center of the top surface of the rivet body rod 5, the plastic sleeve 4 is fixedly connected to the inner wall of the straight hole 3, the circular arc closing-in 6 is arranged at the top end of the straight hole 3, the top end of the plastic sleeve 4 contacts with the bottom surface of the circular arc closing-in 6, the radius of the top end of the circular arc closing-in 6 is smaller than the outer diameter of the plastic sleeve 4, the top of the plastic sleeve 4 is limited, when riveting is ensured, a locking convex tooth 11 is clamped into the plastic sleeve 4, when an upward pulling force is applied to the plastic, when the nail core 7 is slightly pushed into the nail body 1 until the anti-falling teeth 9 are formed, the plastic sleeve 4 cannot fall off;

referring to fig. 3, a head 15 of the nail core is fixedly connected to the top of the nail core 7, a rod body of the nail core 7 is sequentially provided with a locking tooth group consisting of four locking convex teeth 11 and three locking concave teeth 12, a nail core breakpoint groove 10, an anti-falling tooth 9 and an anti-sliding tooth 8 from top to bottom, the nail core 7 is of a round rod-shaped structure, the tooth form of the anti-sliding tooth 8 on the nail core 7 is triangular, the radius of one end of the rod body of the nail core 7 provided with the anti-sliding tooth 8 is matched with the rivet head specification of a rivet gun, so that the rivet gun can conveniently clamp the bottom of the nail core 7 for riveting, the four locking convex teeth 11 are arranged at equal intervals, the locking concave teeth 12 are arranged between adjacent locking convex teeth 11, the tooth surface of the locking convex teeth 11 forms an axial angle with the rod body of the nail core 7, and the top end of the tooth surface of the locking convex teeth 11 points outwards to the edge of the head 15 of the nail, the diameter of locking dogtooth 11 is greater than the hole diameter of plastic sheath 4, and at nail core 7 atress, locking dogtooth 11 can be with the inner wall extrusion deformation of plastic sheath 4 when the inner wall downstream of plastic sheath 4, locking notch 12 is perpendicular to the body of rod lateral wall of nail core 7, and locking notch 12 is the step form between adjacent locking dogtooth 11, and convenient card goes into the arch after the plastic sheath 4 inner wall warp, improves the locking force, nail core head 15 has seted up round annular groove 14, and annular groove 14 encircles the body of rod top and sets up, fixedly connected with annular straight-bar 13 between nail core head 15 and the body of rod top, the diameter of nail body pole 5 is the same with the diameter of annular straight-bar 13 and with treat the connecting hole phase-match on the riveting object, annular straight-bar 13 diameter is the same with nail body pole 5 diameter, can improve the shearing force of rivet when riveting the object, the riveting firmness of the rivet is improved, the rubber sealing ring is clamped in the annular groove 14 and plays a role in water resistance and shock resistance, the riveting firmness of the rivet is improved, and the service life of the rivet is prolonged.

The utility model discloses a theory of operation is: when a riveting gun is used for riveting, a nail body 1 is inserted into one end of a connecting hole formed in an object to be riveted, a nail core 7 is inserted into the nail body 1 from the other end of the connecting hole formed in the object to be riveted until a tooth falling prevention 9 is inserted into a nail body rod 5, an anti-slip tooth 8 on the nail core 7 is inserted into a rivet head in the riveting gun, the riveting gun is pulled, the rivet head of the riveting gun clamps one end of the nail core 7 provided with the anti-slip tooth 8, so that the nail body 1 moves upwards while the nail core 7 moves downwards, a locking convex tooth 11 and an anti-slip concave tooth 12 slide into an inner cavity of a plastic sleeve 4 in the nail body rod 5, because the diameter of the locking convex tooth 11 is larger than the inner hole diameter of the plastic sleeve 4, the locking convex tooth 11 can be embedded into the plastic sleeve 4, so that the plastic sleeve 4 deforms, an anti-slip bulge is formed at a position, corresponding to the anti-slip concave tooth 12, and is clamped into a step formed by the locking convex tooth 11 and the locking concave tooth, when the rivet edge 2 and the head 15 of the nail core contact the object to be riveted, the nail core 7 continues to move downwards under the pulling of the riveter until the object to be riveted is clamped, the break point groove 10 of the nail core is broken under the action of the force of pulling the rivet of the riveter, the riveting is completed, when the riveter does not rivet, the nail core 7 is broken from the break point groove 10 of the nail core through a common tool, then the nail body 1 is inserted from one end of a connecting hole formed in the object to be riveted, the bottom of the nail body 1 is supported, the broken upper section of the nail core is knocked into the nail body 1 by using a tool, the nail core 7 can be directly knocked into the nail body 1, and the lower section of the nail core 7 is broken off.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides an insertive annular rivet, includes the nail body (1) and nail core (7), its characterized in that: the nail body (1) comprises a riveting edge (2), a straight hole (3), a plastic sleeve (4), a nail body rod (5) and an arc closing-in (6), the bottom end of the outer wall of the nail body rod (5) is fixedly connected with the riveting edge (2), the straight hole (3) is formed in the center of the top surface of the nail body rod (5), and the plastic sleeve (4) is fixedly connected to the inner wall of the straight hole (3);

the top fixedly connected with nail core head (15) of nail core (7), and the body of rod from the top down of nail core (7) has seted up four locking dogteeth (11) and the locking tooth group, nail core breakpoint groove (10) that three locking dogtooth (12) are constituteed in proper order, has prevented tooth (9) and antiskid tooth (8), four locking dogtooth (11) equidistant setting, and has seted up locking dogtooth (12) between adjacent locking dogtooth (11), round annular groove (14) have been seted up of nail core head (15), and annular groove (14) encircle the body of rod top and set up, fixedly connected with annular straight-bar (13) between nail core head (15) and the body of rod top.

2. A plug-in ring groove rivet according to claim 1, wherein: the top of straight hole (3) is equipped with circular arc binding off (6), the top of plastic sheath (4) contacts with the bottom surface of circular arc binding off (6), and the top radius of circular arc binding off (6) is less than the external diameter of plastic sheath (4).

3. A plug-in ring groove rivet according to claim 1, wherein: the locking structure is characterized in that the tooth surface of each locking convex tooth (11) and the rod body of the nail core (7) form an axial angle, the top end of the tooth surface of each locking convex tooth (11) faces outwards to the edge of the head (15) of the nail core, each locking concave tooth (12) is perpendicular to the side wall of the rod body of the nail core (7), each locking concave tooth (12) is in a step shape between the adjacent locking convex teeth (11), a concave gap is reserved between each group of locking convex teeth (11) and each group of locking concave teeth (12), and a step is also formed between each group of locking convex teeth (11) and each group of locking concave teeth (12).

4. A plug-in ring groove rivet according to claim 1, wherein: the inner diameter of the plastic sleeve (4) is matched with the outer diameter of the convex teeth of the anti-falling teeth (9).

5. A plug-in ring groove rivet according to claim 1, wherein: the diameter of the locking convex tooth (11) is larger than the diameter of an inner hole of the plastic sleeve (4).

6. A plug-in ring groove rivet according to claim 1, wherein: the diameter of the ring groove straight rod (13) is the same as that of the nail body rod (5).