Hollow rivet with anti-falling structure

Abstract

The utility model provides a hollow rivet with an anti-dropping structure, which belongs to the technical field of fasteners and comprises a hollow rivet rod, a rivet cap arranged at the top of the hollow rivet rod, a reinforcing block arranged at the bottom of the rivet cap, an extrusion rivet head arranged at the bottom end of the hollow rivet rod and a thickened bump arranged at the bottom of the hollow rivet rod. The hollow rivet comprises a hollow rivet rod, a thickened protruding block is arranged on the inner wall of the hollow rivet rod, circular structures are arranged on the edges of the top and the bottom of the thickened protruding block, a rivet head is arranged at the bottom of the inner wall of the hollow rivet rod, a concave groove is formed in the edge side of the bottom of the inner wall of the hollow rivet rod, and a conical block is arranged at the bottom of the rivet head. The top and the bottom of the concave groove generate convex blocks to abut against the top and the bottom of the conical block under external extrusion, the bottom of the rivet cap abuts against the top of a connected object, two fixing structures are formed among the top of the table-shaped convex block, the concave groove and the conical block, and it is avoided that a gap between the clamping ends is enlarged due to external force.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of fastener, specifically relates to a hollow rivet with anti -drop structure. BACKGROUND

[0002] The riveting structure of the existing semi hollow rivet is a pure plane structure after riveting and forming, and the joint part with the inner surface of the riveted component is a pure circular structure, so that the joint part of the rivet and the component rotates, shakes and the like after long-term use, the connection reliability gradually decreases with the increase of time, and the service life is shortened, wherein the semi hollow rivet with anti -drop structure disclosed in the application number " CN202223424984.5 " is also a mature technology, the embedded boss can be embedded into the riveting hole of the riveted component during riveting, radial pressure is applied to the inner wall of the riveting hole, the riveted component and the riveting core rod are more closely connected, the embedded boss is provided with an embedded convex rib, the embedded convex rib is deformed after being embedded into the riveting hole of the riveted component, the arc structure makes the embedded convex rib enter the riveting hole more smoothly, and a certain expansion pressure is formed on the edge of the riveting hole, a reinforcing convex rib is arranged in the riveting slot, and the joint part of the riveting ring edge and the riveting core rod is structurally reinforced by the reinforcing convex rib after the riveting ring edge is rolled, so that the riveting ring edge is prevented from being broken after long-term use, but the device still has the following defects: after the rivet fixes the connected object, the gap of the clamping end becomes larger due to external knocking, the clamping effect of the rivet on the object connection is affected, and the rivet connection end is loose. Meanwhile, the rivet rod middle part is prone to breakage due to external force after the object is fixed, affecting the fixing effect. UTILITARIAN CONTENT

[0003] The utility model aims at providing a hollow rivet with anti -drop structure, which aims at solving the problems that the gap of the clamping end becomes larger due to external knocking in the prior art, the clamping effect of the rivet on the object connection is affected, and the rivet connection end is loose. Meanwhile, the rivet rod middle part is prone to breakage due to external force after the object is fixed.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: including hollow rivet, the hollow rivet top is equipped with rivet cap, the rivet cap bottom is equipped with reinforcing block, the reinforcing block top and bottom edge side are arc-shaped, the hollow rivet bottom is equipped with extrusion nail head, the hollow rivet bottom is equipped with thickening protruding block, the thickening protruding block top and bottom edge are equipped with round configuration, the hollow rivet inner wall bottom is equipped with rivet head, the hollow rivet inner wall bottom side is equipped with concave groove, the rivet head bottom is equipped with conical block.

[0005] In the hollow rivet with anti -drop structure of the utility model, the outer wall top of the thickening protruding block is engraved with a net-shaped anti -slip texture.

[0006] In the scheme, after the hollow rivet rod is inserted into the hole position, the rivet head connected to one end of the rivet gun head is pulled upward, the thickened protrusion is extruded, the thickened protrusion is folded to make the side provided with the mesh anti-skid texture abut against the bottom of the connected object to avoid slipping.

[0007] In the hollow rivet with anti-dropping structure of the utility model, the rivet cap bottom end is provided with a plurality of anti-skid positioning blocks.

[0008] In the scheme, when the rivet head is pulled upward, the clamped object is clamped between the rivet cap and the thickened protrusion, the rivet cap bottom abuts against the top of the connected object, and the anti-skid positioning block is used to avoid the rivet cap from slipping after abutting against the object surface.

[0009] In the hollow rivet with anti-dropping structure of the utility model, the rivet head outer wall top is provided with a table-shaped protrusion, the rivet cap inner wall top is provided with a concave-shaped protrusion, and the concave-shaped protrusion and the table-shaped protrusion are matched in size.

[0010] In the scheme, when the rivet head is pulled upward, the table-shaped protrusion and the concave-shaped protrusion surface are attached, and the gap at the rivet cap inner wall top opening is reduced.

[0011] In the hollow rivet with anti-dropping structure of the utility model, the table-shaped protrusion outer wall is provided with a plurality of strip-shaped anti-skid blocks.

[0012] In the scheme, after the table-shaped protrusion abuts against the rivet cap top gap, the strip-shaped anti-skid block of the table-shaped protrusion abuts against the hollow rivet inner wall top side wall, the rivet head is prevented from falling during the pulling process, and the clamping end gap is expanded.

[0013] In the hollow rivet with anti-dropping structure of the utility model, the rivet cap bottom side is provided with a hard flat head ring.

[0014] In the scheme, when the rivet cap abuts against the object top, the hard flat head ring abuts against the object top, the gap is reduced, and the rivet cap edge is prevented from being raised.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] 1) by the extrusion nail head extrusion thickening block of folding into a round cake, against the bottom of the connecting object, the table type block and the surface of the concave block are pasted, the strip-shaped anti-skid block of the table type block is against the inner wall top side wall of the hollow rivet rod, the rivet head is prevented from falling in the pulling process, the clamping end gap is expanded, at this time the conical block blocks the inner wall of the concave groove due to the deformation generated by the pressure, the top and bottom of the concave groove are extruded, the block is against the top and bottom of the conical block, the rivet cap bottom is against the top of the connected object, the top of the table type block and the concave groove and the conical block form two fixed structures, the clamping end gap is prevented from being enlarged due to external force, the reinforcing block improves the strength of the middle part of the hollow rivet rod in the use process, and the hollow rivet rod is prevented from being broken. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation on the present application. In the drawings:

[0018] Figure 1 It is a structural schematic view of the present application;

[0019] Figure 2 It is a sectional structure schematic view of the present application;

[0020] Figure 3 It is one of sectional structure schematic views of the present application.

[0021] In the drawing: 1, hollow rivet rod; 2, rivet cap; 3, reinforcing block; 4, extrusion nail head; 5, thickening block; 6, rivet head; 7, concave groove; 8, conical block; 9, anti-skid positioning block; 10, table type block; 11, concave block; 12, strip-shaped anti-skid block; 13, hard flat head ring. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] Please refer to Figures 1-3The utility model provides the following technical scheme: a hollow rivet with anti -drop structure, including hollow rivet 1, the top of hollow rivet 1 is equipped with rivet cap 2, the bottom of rivet cap 2 is equipped with reinforcing block 3, the top and bottom side of reinforcing block 3 are arc, the bottom end of hollow rivet 1 is equipped with extrusion nail head 4, the bottom of hollow rivet 1 is equipped with thickening lug 5, the top and bottom edge of thickening lug 5 is equipped with round configuration, the bottom of hollow rivet 1 inner wall is equipped with rivet head 6, the bottom side of hollow rivet 1 inner wall is equipped with concave groove 7, the bottom of rivet head 6 is equipped with conical block 8.

[0024] In a specific embodiment of the hollow rivet with anti -drop structure, please refer to Figure 1 : thickening lug 5 outer wall top is engraved with netted antiskid texture.

[0025] Please refer to Figure 1 : after hollow rivet 1 is inserted into the hole position, the rivet head 6 connected with one end of rivet gun head is pulled up, extruding thickening lug 5, thickening lug 5 is folded to make the one side with netted antiskid texture abut against the bottom of the connected object, to avoid slipping.

[0026] In a specific embodiment of the hollow rivet with anti -drop structure, please refer to the figure: the bottom end of rivet cap 2 is distributed with several antiskid positioning blocks 9.

[0027] Please refer to the figure: after rivet head 6 is pulled up, the clamped object is clamped between rivet cap 2 and thickening lug 5, the bottom of rivet cap 2 abuts against the top of the connected object, and the antiskid positioning block 9 is used to avoid the rivet cap 2 from slipping after abutting against the surface of the object.

[0028] In a specific embodiment of the hollow rivet with anti -drop structure, please refer to Figures 2-3 : the outer wall top of rivet head 6 is equipped with table type lug 10, the inner wall top of rivet cap 2 is equipped with concave lug 11, and the concave lug 11 is matched with the size of table type lug 10.

[0029] Please refer to Figures 2-3 : after rivet head 6 is pulled up, the surface of table type lug 10 and concave lug 11 is attached, to reduce the gap at the opening of the inner wall top of rivet cap 2.

[0030] In a specific embodiment of the hollow rivet with anti -drop structure, please refer to Figure 2 : the outer wall of table type lug 10 is distributed with several strip-shaped antiskid blocks 12.

[0031] Please refer to Figure 2 : after table type lug 10 abuts against the gap at the top of rivet cap 2, the strip-shaped antiskid block 12 of table type lug 10 abuts against the inner wall top side wall of hollow rivet 1, to avoid the rivet head 6 from falling in the pulling process, and to expand the clamping end gap.

[0032] Specific one with anti-off structure hollow rivet embodiment, please refer to Figure 1 : Rivet cap 2 bottom side is equipped with hard flat ring 13.

[0033] Please refer to Figure 1 : When rivet cap 2 is against the top of the object, through hard flat ring 13 against the top of the object. Reduce the gap, avoid the edge of rivet cap 2 edge.

[0034] The utility model provides a kind of hollow rivet with anti-off structure, specific use mode is: the head of rivet gun is inserted into rivet cap 2 top and is fixed with rivet head 6 top end's table type boss 10, when hollow rivet rod 1 is inserted into the hole of connecting article, rivet gun head pulls rivet head 6, extrusion rivet head 4 extrusion thickening boss 5 is folded into round cake, against the bottom of connecting article, table type boss 10 and concave boss 11 surface are pasted, through the strip-shaped antiskid block 12 of table type boss 10 against hollow rivet rod 1 inner wall top side wall, avoid rivet head 6 in the process of pulling down, expand clamping end gap, when conical block 8 blocks the inner wall of recessed groove 7 due to deformation generated by pressurization, recessed groove 7 is extruded in the top and bottom and generates boss against the top and bottom of conical block 8 under the outside, rivet cap 2 bottom against the top of connecting object, table type boss 10 top and between recessed groove 7 and conical block 8 form two fixed structures, avoid clamping end gap to be enlarged due to external force, through antiskid positioning block 9 avoid rivet cap 2 against the surface of object after skidding, through hard flat ring 13 against the top of the object, reduce the gap, avoid the edge of rivet cap 2 edge.

[0035] Finally, it should be noted that: the above only for preferred embodiment of the utility model, and not for limiting the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can be modified to the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A hollow rivet with anti-dropping structure, comprising a hollow rivet shank (1), characterized in that: The top of the hollow rivet rod (1) is provided with a rivet cap (2), the bottom of the rivet cap (2) is provided with a reinforcing block (3), the top and bottom edges of the reinforcing block (3) are arc-shaped, the bottom end of the hollow rivet rod (1) is provided with an extrusion nail head (4), the bottom of the hollow rivet rod (1) is provided with a thickened protrusion (5), the top and bottom edges of the thickened protrusion (5) are provided with a circular structure, the inner wall of the hollow rivet rod (1) is provided with a rivet head (6) at the bottom, the inner wall of the hollow rivet rod (1) is provided with a concave groove (7) at the bottom edge, and the bottom of the rivet head (6) is provided with a conical block (8).

2. The hollow rivet with anti-dropping structure according to claim 1, characterized in that: The top of the outer wall of the thickened protrusion (5) is engraved with a mesh anti-slip texture.

3. The hollow rivet with anti-dropping structure according to claim 1, characterized in that: The bottom end of the rivet cap (2) is provided with a plurality of anti-slip positioning blocks (9).

4. The hollow rivet with anti-extraction structure according to claim 3, characterized in that: The outer wall of the rivet head (6) is provided with a table-shaped protrusion (10) at the top, the inner wall of the rivet cap (2) is provided with a concave protrusion (11) at the top, and the size of the concave protrusion (11) and the table-shaped protrusion (10) is matched.

5. The hollow rivet with anti-extraction structure according to claim 4, characterized in that: The outer wall of the table-shaped protrusion (10) is provided with a plurality of strip-shaped anti-slip blocks (12).

6. The hollow rivet with anti-extraction structure according to claim 1, characterized in that: The bottom edge of the rivet cap (2) is provided with a hard flat head ring (13).

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