Open type self-plugging rivet

Abstract

The utility model relates to the technical field of self-plugging rivets, and discloses an open type self-plugging rivet. The open type self-plugging rivet comprises a core rod, the upper side of the outer wall of the core rod is arranged in a square shape, a rivet sleeve is arranged on the outer wall of the core rod, deformation pieces are evenly arranged at the top end of the rivet sleeve, a limiting head is arranged at the top end of the core rod, and an arc-shaped rolling groove is formed in the bottom wall of the limiting head. According to the scheme, the core rod, the rivet sleeve, the deformation piece and other devices are arranged to be matched, the device can conveniently enable the deformation piece to deform by pulling the core rod, riveting operation can be conveniently conducted on plates, and the situation that the plates are loosened due to incomplete deformation is avoided; through cooperation of the limiting nail, the nail cap, the nail sleeve and other devices, the device can be conveniently fixed to the surface of a riveted plate, the plate can be conveniently limited and fixed, deflection is avoided, and the riveting fastening degree can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of blind rivets, and particularly relates to an open - type blind rivet. Background Art

[0002] Open - type blind rivets are a type of rivets for single - sided riveting, but a special riveting gun (manual, electric, pneumatic) must be used for riveting. During riveting, the rivet core is pulled by a special riveting gun to expand the rivet body to play a riveting role. Due to different structures or strengths, the existing open - type blind rivets are not easy to deform and expand, which is not convenient for riveting plates and is likely to loosen, resulting in plate offset. Therefore, we propose an open - type blind rivet. Content of the Utility Model

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides an open - type blind rivet, which effectively solves the problems that the existing open - type blind rivets are not easy to deform and expand due to different structures or strengths, are not convenient for riveting plates, and are likely to loosen, resulting in plate offset.

[0004] To achieve the above purpose, the utility model provides the following technical scheme: an open - type blind rivet, including a core rod, the upper side of the outer wall of the core rod is square - shaped, a nail sleeve is arranged on the outer wall of the core rod, deformation pieces are evenly arranged at the top of the nail sleeve, a limit head is arranged at the top of the core rod, an arc - shaped winding groove is opened on the bottom wall of the limit head, the deformation pieces are located below the limit head, a nail cap is arranged on the bottom wall of the nail sleeve, and the deformation pieces, the nail sleeve and the nail cap are integrally formed.

[0005] Preferably, deformation grooves are evenly opened on the side wall of the deformation piece far from the axis of the core rod, and the deformation grooves are transversely arc - shaped.

[0006] Preferably, limit nails are evenly arranged on the top wall of the nail cap, and the limit nails are conical.

[0007] Preferably, a sealing ring is arranged on the top wall of the nail cap, the limit nails are located in the inner cavity of the sealing ring, a sealing sleeve is arranged on the outer wall of the core rod, and the sealing sleeve is located on the inner wall of the nail cap.

[0008] Preferably, a core groove is opened on the upper side of the outer wall of the core rod, and anti - slip ring grooves are evenly opened on the lower side of the outer wall of the core rod.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] 1. The open type blind rivet can, through the cooperation of devices such as a core rod, a nail sleeve and a deformation piece, facilitate the deformation of the deformation piece by pulling the core rod, making it convenient to perform riveting operations on the plate, and avoiding the situation of incomplete deformation resulting in the loosening of the plate.

[0011] 2. The open type blind rivet can, through the cooperation of devices such as a limit nail, a nail cap and a nail sleeve, be easily fixed to the surface of the riveted plate, facilitating the limit fixation of the plate and avoiding deflection, which is beneficial to improving the fastening degree of riveting.

[0012] 3. The open type blind rivet can, through the cooperation of devices such as a sealing ring, a sealing sleeve and a core rod, facilitate the sealing of the joint. Made of rubber material, it is easy to deform and fit on the surface of the object, improving the sealing performance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention, but do not constitute a limitation to the present invention.

[0014] In the drawings:

[0015] Figure 1 is a schematic structural diagram of the present invention;

[0016] Figure 2 is a schematic cross-sectional structure diagram of the nail sleeve of the present invention;

[0017] Figure 3 is the present invention Figure 2 partial enlarged view of part A in;

[0018] In the figure: 100, core rod; 101, nail sleeve; 102, deformation piece; 103, limit head; 104, nail cap; 105, limit nail; 106, sealing ring; 107, sealing sleeve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0020] By Figure 1 , Figure 2 and Figure 3Provided is a split mandrel blind rivet of the present utility model. The upper side of the outer wall of the mandrel 100 is square-shaped. The square shape can prevent deflection on the inner wall of the rivet sleeve 101. The outer wall of the mandrel 100 is slidably connected with the rivet sleeve 101. The rivet sleeve 101 facilitates the support of the deformation piece 102. The top end of the rivet sleeve 101 is evenly fixedly connected with the deformation piece 102. By squeezing and deforming the deformation piece 102, it is convenient to rivet and fix the plate. The top end of the mandrel 100 is fixedly connected with a limit head 103. The limit head 103 facilitates the extrusion of the deformation piece 102, causing the deformation piece 102 to deform and bend for riveting. An arc-shaped rolling groove is provided on the bottom wall of the limit head 103. The arc-shaped rolling groove facilitates the pushing and bending of the deformation piece 102. The deformation piece 102 is located below the limit head 103. The bottom wall of the rivet sleeve 101 is fixedly connected with a rivet head 104. The rivet head 104 facilitates the limitation of the position of the plate. The deformation piece 102, the rivet sleeve 101 and the rivet head 104 are integrally formed; during riveting, the rivet sleeve 101 is inserted into the through hole for plate riveting, and then one end of the mandrel 100 is connected to a riveting machine. The riveting machine drives the mandrel 100 to move for core extraction. The mandrel 100 drives the limit head 103 to move. The limit head 103 extrudes the deformation piece 102. The deformation piece 102 deforms and curls under the extrusion of the arc-shaped groove, causing the deformation piece 102 to deform and push and fix the plate. It can make the device facilitate the deformation of the deformation piece 102 by pulling the mandrel 100, facilitating the riveting operation of the plate, and avoiding the situation of incomplete deformation resulting in plate loosening. The side wall of the deformation piece 102 away from the axis of the mandrel 100 is evenly provided with deformation grooves. The deformation grooves are horizontally arc-shaped; the provision of the deformation grooves facilitates the bending and deflection of the deformation piece 102, which is beneficial for the deformation piece 102 to bend and rivet and fix the plate. The top wall of the rivet head 104 is evenly fixedly connected with limit nails 105. The limit nails 105 facilitate the insertion into the plate for limitation. The limit nails 105 are conical; during riveting, the limit nails 105 are inserted into the surface of the plate for fixation by extrusion. The limit nails 105 limit the rivet head 104, and the rivet head 104 limits the rivet sleeve 101. It can make the device facilitate the fixation on the surface of the riveted plate, facilitate the limitation and fixation of the plate, avoid deflection, and is beneficial to improve the fastening degree of riveting. A sealing ring 106 is fixedly connected to the top wall of the rivet head 104. The limit nails 105 are located inside the sealing ring 106. A sealing sleeve 107 is fixedly connected to the outer wall of the mandrel 100. The sealing sleeve 107 is located inside the rivet head 104. Both the sealing ring 106 and the sealing sleeve 107 are made of rubber material, which is convenient for deformation and fitting on the surface of the object to improve the sealing performance of the device; during riveting, the sealing ring 106 closely adheres to the surface of the plate for sealing, preventing water vapor from entering and rusting the support plate. The sealing sleeve 107 can seal the inner wall of the rivet head 104, preventing water vapor from seeping in. An inner groove is provided on the upper side of the outer wall of the mandrel 100. Anti-slip ring grooves are evenly provided on the lower side of the outer wall of the mandrel 100;A core groove is provided to facilitate the truncation of the core rod 100 after riveting. The anti-slip ring groove can facilitate the clamping and pulling of tools, avoiding sliding and affecting riveting.

[0021] Working principle: During riveting, insert the nail sleeve 101 into the through hole for sheet metal riveting. Then connect one end of the core rod 100 to the riveting machine. Drive the core rod 100 to move and extract the core through the riveting machine. Drive the limit head 103 to move through the core rod 100. Extrude the deformation piece 102 through the limit head 103. The deformation piece 102 deforms and curls under the extrusion of the arc groove, so that the deformation of the deformation piece 102 pushes and fixes the sheet metal. It can make the device facilitate the deformation of the deformation piece 102 by pulling, facilitating the riveting operation of the sheet metal, and avoiding the situation of incomplete deformation resulting in loose sheet metal. During riveting, the limit pin 105 is inserted into the surface of the sheet metal for fixation by extrusion. The limit pin 105 limits the nail cap 104, and the nail cap 104 limits the nail sleeve 101. It can make the device facilitate the limit fixation of the riveted sheet metal, avoiding deflection and being beneficial to improving the fastening degree of riveting.

[0022] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0023] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An open-type blind rivet, comprising a core rod (100), characterized in that: The upper side of the outer wall of the core rod (100) is square-shaped. A nail sleeve (101) is provided on the outer wall of the core rod (100). Deformation sheets (102) are evenly arranged at the top end of the nail sleeve (101). A limit head (103) is provided at the top end of the core rod (100). An arc-shaped winding groove is formed in the bottom wall of the limit head (103). The deformation sheets (102) are located below the limit head (103). A nail cap (104) is provided on the bottom wall of the nail sleeve (101). The deformation sheets (102), the nail sleeve (101) and the nail cap (104) are integrally formed; Deformation grooves are evenly formed in the side wall of the deformation sheet (102) away from the axis of the core rod (100). The deformation grooves are transversely arc-shaped.

2. The open type blind rivet according to claim 1, wherein: Limit nails (105) are evenly arranged on the top wall of the nail cap (104). The limit nails (105) are conical.

3. The open type blind rivet according to claim 2, wherein: A sealing ring (106) is provided on the top wall of the nail cap (104). The limit nails (105) are located in the inner cavity of the sealing ring (106). A sealing sleeve (107) is provided on the outer wall of the core rod (100). The sealing sleeve (107) is located on the inner wall of the nail cap (104).

4. The open type blind rivet according to claim 1, wherein: A core groove is formed in the upper side of the outer wall of the core rod (100). Anti-slip ring grooves are evenly formed in the lower side of the outer wall of the core rod (100).

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