CN213478875U

CN213478875U - Pull rivet

Info

Publication number: CN213478875U
Application number: CN202021027625.4U
Authority: CN
Inventors: 卢晔
Original assignee: Chengdu Jiushidu Industrial Product Design Co Ltd
Current assignee: Chengdu Jiushidu Industrial Product Design Co Ltd
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2021-06-18
Anticipated expiration: 2030-06-08

Abstract

The utility model discloses a blind rivet relates to the riveting field, and it includes the head of a nail of taking the through-hole and arranges the nail pole in the head of a nail through-hole in, head of a nail and nail pole tail section are equipped with the separation portion that can harmless separation head of a nail and nail pole. The rivet is provided with the separating part, so that the ejector rod can be completely drawn out from the rivet cap, and the drawn rivet rod can be repeatedly used, thereby solving the problems that the metal material is difficult to discard and recycle after the traditional rivet is riveted, and the application range is limited due to the fact that the rivet rod falls to be redundant; the scheme is various, can select according to actual demand, and application scope is wide.

Description

Pull rivet

Technical Field

The utility model relates to a riveting field, concretely relates to blind rivet.

Background

At present, the rivet fastening technology is widely used for assembling electromechanical and light industrial products such as automobiles, aviation, railways, refrigeration, elevators, switches, instruments, furniture, decorations and the like. The connecting device is developed for solving the defects that a welding fastener for metal sheets and thin pipes is easy to melt, difficult to machine threads and the like, and has the characteristics of high connecting efficiency, convenience in use, reliability in connection and the like.

The rivet is connected by using a rivet gun to complete rivet connection, the rivet rod is pulled by using a pneumatic or manual rivet gun, and the tail section of the rivet cap is forced to deform and expand by the head of the rivet rod until the head of the rivet rod is broken by pulling. The diameter of the tail section of the deformed nail cap is larger than that of the rivet hole, and the tail section and the head of the nail cap tightly clamp a workpiece to be riveted, so that the aim of riveting is fulfilled. However, after the traditional rivet is riveted, the head of the rivet rod is broken, the rivet rod is discarded, and the recycling is very difficult, so that a large amount of metal materials are wasted. If the rivet is used for riveting the closed space, the rivet rod head can fall into the closed space after the operation is finished, and the rivet rod head becomes surplus.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in view of the above situation, the utility model discloses a design of nail pole can be taken out completely, and the nail pole can used repeatedly, has solved traditional rivet nail and has accomplished the back at the riveting, the problem of metal material abandonment recovery difficulty to and the nail pole that drops becomes the surplus limited problem of application scope that leads to. The specific description is as follows: the utility model adopts the technical scheme as follows:

the utility model provides a blind rivet, includes the head of a nail of taking the through-hole and arranges the nail pole in the head of a nail through-hole in, head of a nail and nail pole tail section are equipped with the separation portion that can harmless separation head of a nail and nail pole.

Due to the adoption of the technical scheme, the separation part is arranged on the rivet, the ejector rod can be completely pulled out from the rivet cap, the pulled rivet rod can be reused, the problem that metal materials are difficult to discard and recycle after the traditional rivet is riveted is solved, and the problem that the application range is limited due to the fact that the rivet rod falls to be redundant is solved.

Further, the nail cap comprises a nail cap head, a nail cap tail section and a nail cap rod part deformation section which are integrally formed, the nail cap head is connected to the upper portion of the nail cap rod part deformation section, and the nail cap tail section is connected to the lower portion of the nail cap rod part deformation section. The nail pole includes the nail pole head, separation portion includes nail cap tail section and nail pole head, nail cap pole portion deformation section surface both ends reserve has the bending groove.

Due to the adoption of the technical scheme, when the rivet rod is pulled by using the rivet gun, only the deformation section of the stem part of the rivet cap can deform, and the situation that the stem cannot be drawn out due to deformation of other parts is avoided in the rivet pulling process.

Furthermore, the nail head is provided with an external thread matched with the internal thread of the tail section of the nail cap, and the nail head is connected with the tail section of the nail cap through the thread.

Due to the adoption of the technical scheme, the rivet rod can be pulled by the hand riveter, so that the rivet rod is rotated after the bending deformation of the deformation section of the rivet cap rod part is completed, the rivet rod head is withdrawn from the thread of the tail section of the rivet cap, and the rivet rod is completely withdrawn from the rivet cap.

Furthermore, the inner wall of the tail section of the nail cap is non-circular, and the shape of the cross section of the head of the nail rod is matched with that of the inner wall of the tail section of the nail cap and can slide in the tail section of the nail cap.

Due to the adoption of the technical scheme, the nail rod can be completely drawn out from the nail cap.

Further, the nail head can stretch out the nail cap tail section, its radial can be certain angle with nail cap tail section through-hole of nail head, the angle makes the nail head unable through nail cap tail section through-hole. The nail rod can rotate a certain angle, so that the nail rod head and the through hole at the tail section of the nail cap are superposed, and the nail rod can be completely taken out of the nail cap.

Due to the adoption of the technical scheme, when the rivet rod is pulled by using the hand riveter, the rivet rod is rotated by a corresponding angle after the bending deformation of the deformation section of the nail cap rod part is finished, so that the rivet rod head is superposed with the through hole of the tail section of the nail cap, and the rivet rod is continuously pulled to be completely drawn out.

Furthermore, a groove matched with the section shape of the head of the nail rod is arranged on the end surface of the tail section of the nail head and at the position crossed with the head of the nail rod, and one end of the head of the nail rod far away from the tail end can be embedded into the groove.

Due to the adoption of the technical scheme, the position of the nail rod head can be limited, the nail rod head can be ensured not to rotate relative to the tail section of the nail cap when the rivet is pulled, the nail rod can be separated from the nail cap in advance, and meanwhile, a part of the nail rod head can be coated, so that a certain protection effect is achieved, and the deformation of the ejector rod head due to external force collision and other reasons is prevented.

Furthermore, a sleeve which can slide between the nail rod and the through hole of the nail cap along the axial direction is arranged between the nail rod and the through hole of the nail cap.

Due to the adoption of the technical scheme, the sleeve is additionally arranged between the nail rod and the through hole of the nail cap, so that the effect of a sliding bearing can be achieved, the dry friction between the nail rod and the through hole of the nail cap in the rivet pulling process is reduced, the nail cap can be supported, the effect of the nail rod is protected, for example, when the rivet is subjected to shearing force, the nail rod in the through hole of the nail cap can be bent along with the deformation of the nail rod, the nail rod can be taken out from the nail cap completely, the sleeve can bear a part of the shearing force, and the nail rod is prevented from being deformed.

Further, the nail head is oval, triangular or quadrangular.

Due to the adoption of the technical scheme, the nail rod head is made into different shapes, for example, when the oval nail rod head needs to be pulled out, the nail rod head needs to rotate by 90 degrees, when the triangular nail rod head needs to be pulled out, the nail rod head needs to rotate by 60 degrees, and when the quadrangular nail rod head needs to be pulled out, the nail rod head needs to rotate by 45 degrees. When leaving the factory, the elliptical nail rod head needs to rotate to a certain degree, so that the nail rod head cannot pass through the tail section of the nail cap, the triangular nail rod head is next time, and the range of the quadrangular nail rod head which can rotate is minimum; when the novel nail head is used, the range of rotation required by the quadrangular nail head is small, the labor hour is saved to the greatest extent, the triangular nail head is the next time, and the elliptical nail head consumes the most time. The merchant and the customer can select the proper shape of the nail head according to the actual use condition.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses a device can take the ejector pin out completely from the nail cap, and the nail pole of taking out can used repeatedly, has solved traditional rivet nail and has accomplished the back at the riveting, the problem of metal material abandonment recovery difficulty to and the nail pole that drops becomes the surplus thing and leads to the limited problem of range of application.

2. The utility model discloses a device can ensure when rivet, and the relative nut tail section of nail head can not take place to rotate, leads to the nail pole to take place to separate with the nut in advance, can protect the nail pole head to make it can not lead to deformation because of reasons such as external force collision simultaneously again.

3. The utility model discloses a device can reduce the dry friction between rivet pole and the nut through-hole of rivet in-process.

4. The utility model discloses a device can protect the nail pole, prevents that the nail pole from producing deformation.

5. The utility model discloses a device, the scheme is various, can select according to actual demand, and application scope is wide.

Drawings

FIG. 1 is a drawing of the structure and working principle of the rivet with thread form in the separating part of the present invention;

FIG. 2 is a drawing of the structure and working principle of the rivet head of the separation part of the present invention, which matches the shape of the inner wall of the tail section of the nut;

FIG. 3 is a structural and operational schematic diagram of the rivet pin with a groove on the end face of the tail section of the nut;

fig. 4 is a schematic view of the present invention showing different shapes of the head of the nail and the cross-section of the head of the nail.

The labels in the figure are: 1-nail cap, 2-nail rod, 3-riveting part, 101-nail cap head, 102-nail cap tail section, 103-nail cap rod part deformation section, 201-nail rod head, and 202-sleeve.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1

A blind rivet comprises a rivet cap 1 with a through hole and a rivet rod 2 arranged in the through hole of the rivet cap 1, wherein tail sections of the rivet cap 1 and the rivet rod 2 are provided with separating parts which can nondestructively separate the rivet cap 1 from the rivet rod 2.

The nail head 1 includes integrated into one piece's head 101, head of a nail tail section 102 and head of a nail pole portion deformation section 103, head of a nail head 101 is connected to head of a nail pole portion deformation section 103 top, and head of a nail tail section 102 is connected to the below, the nail pole 2 includes head of a nail 201, the separation part is including head of a nail tail section 102 and head of a nail pole 201, head of a nail pole portion deformation section 103 surface both ends are reserved has the bending groove.

In order to enable the nail head rod part deformation section 103 to deform as expected, the nail head 1 is made of soft materials which are easy to deform, such as aluminum and the like; in order to prevent the deformation of the separating part caused by the excessive tension, the separating part is subjected to cold heading treatment during production and manufacture so as to improve the strength of the separating part.

The nail head 201 is provided with an external thread matched with the internal thread of the nail head tail section 102, and the nail head 201 is connected with the nail head tail section 102 in a threaded mode. In the process of pulling the rivet, the thread bears larger pulling force and impact force, so the coarse thread is selected.

When the rivet rod 2 is pulled by a hand riveter to cause the nail cap rod part deformation section 103 to be bent and deformed, the rivet rod 2 is rotated in the reverse direction of the thread, so that the rivet rod head 201 is withdrawn from the thread of the nail cap tail section 102, and the rivet rod 2 is completely withdrawn.

Example 2

A blind rivet, as shown in figure 2, replaces the structure of the separation part in the embodiment 1, the inner wall of the tail section 102 of the nut is oval, the cross section of the head 201 of the rivet is oval matched with the shape of the inner wall of the tail section 102 of the nut, and the head can slide in the tail section 102 of the nut.

When the nail head 201 is used, the nail head 201 extends out of the nail cap tail section 102, and the ellipse long axis of the nail head 201 and the ellipse long axis of the through hole of the nail cap tail section 102 form an angle of 90 degrees, so that the nail head 201 cannot pass through the through hole of the nail cap tail section 102. When the rivet rod 2 is pulled by a hand riveter to cause the nail cap rod part deformation section 103 to be bent and deformed, the rivet rod 2 is rotated by 90 degrees, the rivet rod head 201 is overlapped with the through hole of the nail cap tail section 102, the rivet rod 2 is pulled continuously, and the rivet rod 2 can be completely taken out of the nail cap 1.

Example 3

A blind rivet, as shown in figure 3, on the basis of embodiment 2, on the end surface of the tail section 102 of the nut, at the position crossed with the head 201 of the nail, there is a groove matched with the section shape of the head 201 of the nail, and the end of the head 201 far away from the tail end can be embedded into the groove.

When leaving the factory or before using, the end of the nail head 201 far away from the tail end is embedded into the groove. When the rivet is used, the rivet rod 2 is pulled by the hand riveter, so that after the bending deformation of the nail cap rod part deformation section 103 is completed, the nail rod 2 is pushed forwards to be withdrawn from the groove, then the rivet rod 2 is rotated by a corresponding angle, so that the nail rod head 201 is superposed with the through hole of the nail cap tail section 102, and the nail rod 2 is continuously pulled to be completely withdrawn.

This scheme can ensure when rivet pulling, nail pole head 201 can not take place the rotation relatively nut tail section 102, leads to nail pole 2 to take place to separate with nut 1 in advance, can wrap some nail pole head 201 again simultaneously, plays certain protection effect, and the prevention leads to the deformation of ejector pin head 201 because of reasons such as external force collision.

Example 4

A pull rivet is disclosed, as shown in fig. 3, in addition to the

embodiment

2 or 3, a sleeve 202 which can slide along the axial direction between the through hole of the nail head 1 and the nail rod 2 is arranged between the through hole of the nail head 1 and the nail rod 2. Through add sleeve pipe 202 between nail pole 2 and the 1 through-hole of nail cap, not only can play the effect of slide bearing, reduce the dry friction between the in-process nail pole 2 of rivet and the 1 through-hole of nail cap, can also play and support the nail cap 1, the effect of protection nail pole 2, for example when rivet receives the shearing force, nail pole 2 in the 1 through-hole of nail cap can be crooked along with the deformation of nail cap 1, can lead to the nail pole 2 can't be complete to take out from the nail cap 1, and sleeve pipe 202 can bear a part of shearing force, prevent that nail pole 2 from producing deformation.

Example 5

A blind rivet is shown in figure 4, and the shape of the inner wall of the tail section 102 of the nut in the

embodiment

2, 3 or 4 is replaced, the inner wall of the tail section 102 of the nut is triangular, and the cross section of the head 201 of the rivet is triangular matched with the shape of the inner wall of the tail section 102 of the nut and can slide in the tail section 102 of the nut.

When in use, the nail head 201 extends out of the nail cap tail section 102, and the triangular long axis of the nail head 201 and the triangular long axis of the through hole of the nail cap tail section 102 form an angle of 60 degrees, so that the nail head 201 cannot pass through the through hole of the nail cap tail section 102; when the rivet rod 2 is pulled by a hand riveter to cause the nail cap rod part deformation section 103 to be bent and deformed, the rivet rod 2 is rotated by 60 degrees, so that the rivet rod head 201 is superposed with the through hole of the nail cap tail section 102, and the rivet rod 2 is pulled continuously, so that the rivet rod 2 can be completely taken out of the nail cap 1.

Example 6

A blind rivet, as shown in figure 4, replaces the shape of the inner wall of the nut tail section 102 in the

embodiment

2, 3 or 4, the inner wall of the nut tail section 102 is quadrangular, and the cross section of the head 201 of the rivet is quadrangular matched with the shape of the inner wall of the nut tail section 102 and can slide in the nut tail section 102.

When in use, the nail head 201 extends out of the nail cap tail section 102, and the long axes of the four corners of the nail head 201 and the long axes of the four corners of the through hole of the nail cap tail section 102 form an angle of 45 degrees, so that the nail head 201 can not pass through the through hole of the nail cap tail section 102; when the rivet rod 2 is pulled by a hand riveter to cause the nail cap rod part deformation section 103 to be bent and deformed, the rivet rod 2 is rotated by 45 degrees, the rivet rod head 201 is overlapped with the through hole of the nail cap tail section 102, the rivet rod 2 is pulled continuously, and the rivet rod 2 can be completely taken out of the nail cap 1.

The principles and embodiments of the present invention have been explained herein using specific examples, which are presented only to aid in understanding the methods and their core concepts. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the utility model is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element to be referred must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless explicitly stated or limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims

1. The utility model provides a blind rivet, includes nut (1) of band-pass hole and arranges nail pole (2) in the nut through-hole, its characterized in that: the tail sections of the nail cap (1) and the nail rod (2) are provided with separating parts which can be used for nondestructively separating the nail cap (1) from the nail rod (2).

2. A blind rivet according to claim 1, wherein: the nail cap (1) includes integrated into one piece's nail cap head (101), nail cap tail-end (102) and nail cap pole portion deformation section (103), nail cap head (101) is connected to nail cap pole portion deformation section (103) top, and nail cap tail-end (102) is connected to the below, nail pole (2) include nail pole head (201), the separation portion is including nail cap (1) nail cap tail-end (102) and nail pole head (201), nail cap pole portion deformation section (103) surface both ends are reserved has the bending groove.

3. A blind rivet according to claim 2, wherein: the nail head (201) is provided with an external thread matched with the internal thread of the nail cap tail section (102), and the nail head (201) is connected with the nail cap tail section (102) through the thread.

4. A blind rivet according to claim 2, wherein: the inner wall of the tail section (102) of the nail cap (1) is non-circular, and the cross section of the nail head (201) is matched with the inner wall of the tail section (102) of the nail cap and can slide in the tail section (102) of the nail cap.

5. A blind rivet according to claim 4, wherein: the nail head (201) can extend out of the nail cap tail section (102), and the radial direction of the nail head (201) can form a certain angle with the radial direction of the through hole of the nail cap tail section (102), and the angle enables the nail head (201) not to pass through the through hole of the nail cap tail section (102); the nail rod head (201) can rotate for a certain angle, so that the nail rod head (201) is superposed with the through hole of the tail section (102) of the nail cap, and the nail rod (2) can be completely taken out of the nail cap (1).

6. A blind rivet according to claim 5, wherein: on the end face of the tail section (102) of the nail cap, a groove matched with the cross section shape of the nail head (201) is arranged at the position of the intersection of the nail head and the nail head (201), and one end of the nail head (201) far away from the tail end can be embedded into the groove.

7. A blind rivet according to any one of claims 4 to 6, characterized in that: a sleeve (202) which can slide along the axial direction between the through hole of the nail rod (2) and the through hole of the nail cap (1) is arranged between the nail rod (2) and the through hole of the nail cap (1).

8. A blind rivet according to any one of claims 4 to 6, characterized in that: the nailing head (201) is oval, triangular or quadrangular.