CN217271270U

CN217271270U - Expansion bolt assembly

Info

Publication number: CN217271270U
Application number: CN202221230196.XU
Authority: CN
Inventors: 朱新斌; 朱天明
Original assignee: Foshan Shunde Dunming Hardware Products Co Ltd
Current assignee: Foshan Shunde Dunming Hardware Products Co Ltd
Priority date: 2022-05-20
Filing date: 2022-05-20
Publication date: 2022-08-23
Anticipated expiration: 2032-05-20

Abstract

The utility model discloses an expansion bolt assembly, which comprises a bolt body, a filling body and an expansion piece, wherein a nut is arranged at the second end of the bolt body, and a first butt joint part is arranged at the first end of the bolt body; the filler is used for being placed in the first component, and a through hole for the bolt body to pass through is formed in the filler; the expansion piece is used for wrapping the outside of the filling body, the expansion piece comprises a first half shell and two split shells, and the first half shell and the two split shells are spliced into a cylinder. The beneficial effects of the above technical scheme are: when the first half shell and the two split shells of setting are close to each other under the pulling of bolt body, the drum that first half shell and two split shells are constituteed can wholly expand for evenly rise tightly in the thin pipe fitting of metal, the bolt body of setting can be connected in the second component, realizes the connection of thin pipe fitting of metal and second component.

Description

Expansion bolt assembly

Technical Field

The utility model relates to a connecting piece technical field, concretely relates to expansion bolts subassembly.

Background

The expansion screw is generally a metal expansion screw and comprises a screw and an iron sheet round tube. One end of the screw is provided with threads, and the other end of the screw is provided with conicity. The half of the iron sheet cylinder is provided with a plurality of notches, the notches are plugged into a hole drilled on a wall together, then a nut is locked, the nut pulls a screw outwards to pull the taper into the iron sheet cylinder, the iron sheet cylinder is expanded and then is tightly fixed on the wall, and the iron sheet cylinder is generally used for fastening protective guards, rain awnings, air conditioners and other materials on cement, bricks and the like.

The expansion bolt is generally used for fixing a building body, expansion parts are concentrated, the expansion bolt cannot be used for connection between thin metal pipe fittings, and the thin metal pipe fittings can be extruded and deformed or even broken by the expansion parts which are concentrated too much.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides an expansion bolt subassembly, the expansion site distributes evenly, can be used for the connection between the thin metal pipe fitting.

The utility model provides a technical scheme be: an expansion bolt assembly comprising:

the bolt body is used for penetrating through the filler and is connected with the second component, a threaded section is arranged on the bolt body from a first end to a second end, the outer diameter of the threaded section is smaller than the diameter of the bolt body, a nut is arranged at the second end of the bolt body, and a first butt joint part matched with an operating tool is arranged at the first end of the bolt body;

the filling body is used for being placed in a first component, a through hole for the bolt body to pass through is formed in the filling body, expansion gaps are formed in two ends of the filling body, and the expansion gaps extend from the end part of the filling body to the middle part of the filling body; and (c) a second step of,

the inflation piece, the inflation piece is used for the cladding to be in the outside of obturator, the inflation piece includes first half shell and two components of a whole that can function independently shell splices into the drum, the first end of first half shell is provided with first slope breach, the second end of first half shell is provided with first wedge piece, two one side of components of a whole that can function independently shell links to each other, two face behind the components of a whole that can function independently shell splice the position of first slope breach is formed with the second wedge piece, two face behind the components of a whole that can function independently shell splice the position of first wedge piece is formed with the second slope breach, first half shell and two the middle part of components of a whole that can function independently shell is provided with the displacement clearance.

The beneficial effects of the above technical scheme are: when the first half shell and the two split shells of setting are close to each other under the pulling of bolt body, the drum that first half shell and two split shells are constituteed can wholly expand for evenly rise tightly in the thin pipe fitting of metal, the bolt body of setting can be connected in the second component, realizes the connection of thin pipe fitting of metal and second component.

Furthermore, the second component comprises a connecting ball body, two mutually perpendicular butt joint channels are arranged on the connecting ball body, the two butt joint channels respectively penetrate through the connecting ball body, and threaded holes are formed in the ends, close to each other, of the two butt joint channels. The connecting ball bodies can connect two thin metal pipe fittings together in a vertical state, and the four connecting ball bodies can connect the four thin metal pipe fittings into a rectangular frame body.

Further, the diameter of the connecting sphere is larger than the diameter of the cylinder. The connection ball can press the end of the filling body, so that the outer side of the filling body can support the expansion piece, and friction force between the inner parts of the metal pipe fittings of the expansion piece is increased.

Further, the outer diameter of the middle of the filling body is smaller than the outer diameters of the two ends of the filling body, and the inner diameter of the position, where the expansion gap is arranged, of the filling body is larger than the diameter of the through hole.

Furthermore, the first inclined notch is formed by enclosing two first inclined edges, first clamping shoulders are arranged on the two first inclined edges, and first clamping teeth matched with the first clamping shoulders are arranged on two sides of the second wedge piece; the second slope breach is enclosed to close by two second slope edges and forms, two the second slope edge all is provided with the second joint shoulder, the both sides of first wedge piece be provided with second joint shoulder assorted second latch. When the bolt body is screwed up, the first wedge piece extrudes the second inclined notch, and the second wedge piece extrudes the first inclined notch, so that the cylinder expands outwards, the cylinder can be prevented from retracting by the cooperation of the first clamping teeth and the first clamping shoulders, and the cylinder can be prevented from retracting by the cooperation of the second clamping shoulders and the second clamping teeth.

Furthermore, first half shell corresponds the both sides of first wedge piece root position are provided with first breach, first breach with be provided with first dog between the avris of first half shell, two the components of a whole that can function independently shell corresponds the position of first dog is provided with the second breach, the second breach with be provided with the second dog between the second slope breach, the displacement clearance does first dog with the interval between the bottom of second breach.

Further, two one side that the components of a whole that can function independently shell links to each other is vertical limit, the crisscross joint strip and the joint breach that is provided with of vertical edge of two components of a whole that can function independently shells, joint breach and joint strip mutually support in order to link together two the components of a whole that can function independently shell.

Further, the diameter of the nut is larger than the inner diameter of the position of the filling body provided with the expansion gap.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic view of an embodiment of the present invention;

FIG. 2 is an enlarged schematic view at A in FIG. 1;

fig. 3 is an exploded view of the bolt body, the filling body and the expansion member according to the embodiment of the present invention;

FIG. 4 is a schematic view of the expansion member in an embodiment of the invention;

fig. 5 is a schematic view of an expanded and disassembled inflatable member according to an embodiment of the present invention.

Reference numerals: the bolt comprises a bolt body 100, a threaded section 110, a nut 120, a filling body 200, an expansion notch 210, an expansion piece 300, a first half shell 310, a first notch 311, a first stop 312, a first wedge piece 313, a first inclined edge 314, a first clamping shoulder 315, a split shell 320, a clamping strip 321, a second notch 322, a second stop 323, a second wedge piece 324, a second inclined notch 330, a thin metal pipe 400, a connecting sphere 500 and a butt joint channel 510.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

As shown in fig. 1 to 5, the present embodiment provides an expansion bolt assembly, including a bolt body 100, a filler 200 and an expansion piece 300, where the bolt body 100 is configured to penetrate through the filler 200 and is connected to a second member, a threaded section 110 is disposed on the bolt body 100 from a first end to a second end, an outer diameter of the threaded section 110 is smaller than a diameter of the bolt body 100, a nut 120 is disposed on the second end of the bolt body 100, and a first butt-joint portion matched with an operating tool is disposed on the first end of the bolt body 100; the filler 200 is used for being placed in a first member, the first member is a thin metal pipe 400, a through hole for the bolt body 100 to pass through is formed in the filler 200, expansion gaps 210 are formed at two ends of the filler 200, and the expansion gaps 210 extend from the end parts of the filler 200 to the middle part; the expansion piece 300 is used for covering the outside of the filling body 200, the expansion piece 300 comprises a first half shell 310 and two split shells 320, the first half shell 310 and the two split shells 320 are spliced into a cylinder, a first end of the first half shell 310 is provided with a first inclined notch, a second end of the first half shell 310 is provided with a first wedge 313, two one sides of the split shells 320 are connected, the split shells 320 are spliced and then face the first inclined notch, a second wedge 324 is formed at the position of the first wedge 313, the split shells 320 are spliced and then face the first wedge 313, a second inclined notch 330 is formed at the position of the first wedge 313, and displacement gaps are formed in the middle parts of the first half shell 310 and the split shells 320.

During installation, when the first half shell 310 and the two split shells 320 are close to each other under the pulling of the bolt body 100, the cylinder formed by the first half shell 310 and the two split shells 320 can be expanded integrally, so that the cylinder is uniformly tensioned in the thin metal pipe fitting 400, the bolt body 100 can be connected in a second component, and the thin metal pipe fitting 400 and the second component can be connected.

Wherein the second member includes a connection ball 500, and the purpose of connecting the thin metal pipes 400 and the connection ball 500 is to connect the two thin metal pipes 400 together. Two mutually perpendicular butt joint channels 510 are arranged on the connecting sphere 500, the two butt joint channels 510 respectively penetrate through the connecting sphere 500, threaded holes are formed in one ends, close to each other, of the two butt joint channels 510, the other end, corresponding to the threaded holes, of each butt joint channel 510 is an operation hole, and a screwdriver, a wrench and the like extend into the operation hole to rotate the bolt body 100 so as to achieve fastening connection. The connecting balls 500 can connect two metal thin pipe members 400 together in a vertical state, and four connecting balls 500 can connect four metal thin pipe members 400 into a rectangular frame.

In order to expand both ends of the packing body 200, an outer diameter of the middle of the packing body 200 is set to be smaller than outer diameters of both ends of the packing body 200, and an inner diameter of a position where the packing body 200 is provided with the expansion gap 210 is larger than a diameter of the through hole. The connecting sphere 500 has a diameter greater than that of the cylinder. The connection ball 500 can press the end of the packing body 200 so that the outside of the packing body 200 can support the expansion member 300 to increase the frictional force between the insides of the metal pipes of the expansion member 300. The diameter of the nut 120 is larger than the inner diameter of the filling body 200 at the location where the expansion gap 210 is provided. The expansion of the entire outer diameter of the packing body 200 is achieved by partially pressing both ends of the packing body 200 by the nuts 120 and the coupling spheres 500.

In order to increase the reliability of the expansion piece 300 and avoid rebound after expansion, the first inclined notch is formed by two first inclined edges 314, a first clamping shoulder 315 is arranged on each of the two first inclined edges 314, and first clamping teeth matched with the first clamping shoulders 315 are arranged on two sides of the second wedge piece 324; second slope breach 330 is enclosed to close by two second slope edges and forms, two the second slope edge all is provided with the second joint shoulder, the both sides of first wedge piece 313 be provided with second joint shoulder assorted second latch. When the bolt body 100 is tightened, the first wedge piece 313 presses against the second inclined notch 330, the second wedge piece 324 presses against the first inclined notch, so that the cylinder expands outwards, the engagement of the first catch and the first catch shoulder 315 prevents the cylinder from retracting, and the engagement of the second catch shoulder and the second catch prevents the cylinder from retracting.

First half shell 310 and two components of a whole that can function independently shell 320 are close to each other when the operation, in order to reserve the space of removal and the stability after the removal first half shell 310 corresponds the both sides in first wedge piece 313 root position are provided with first breach 311, first breach 311 with be provided with first dog 312 between the avris of first half shell 310, two components of a whole that can function independently shell 320 corresponds the position of first dog 312 is provided with second breach 322, second breach 322 with be provided with second dog 323 between the second slope breach 330, the displacement clearance does first dog 312 with the interval between the bottom of second breach 322. After bolt body 100 is tightened, first stopper 312 is snapped into second notch 322, and second stopper 323 is snapped into first notch 311, so that first half shell 310 and two split shells 320 are circumferentially more secure.

Wherein, two one side that components of a whole that can function independently shell 320 links to each other is vertical limit, the crisscross joint strip 321 and the joint breach that is provided with of vertical edge of two components of a whole that can function independently shells 320, joint breach and joint strip 321 mutually support in order to link together two components of a whole that can function independently shell 320.

In the description of the present application, it is to be understood that the terminology used herein is for the purpose of description only and is not intended to be interpreted as indicating or implying any relative importance or implicit indication of the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral combinations thereof; may be an electrical connection; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the specification of the present invention, a large number of specific details are explained. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, systems, and techniques have not been shown in detail in order not to obscure an understanding of this description.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. An expansion bolt assembly, comprising:

the bolt body (100) is used for penetrating through the filler (200) and is connected with a second component, a threaded section (110) is arranged on the bolt body (100) from a first end to a second end, the outer diameter of the threaded section (110) is smaller than the diameter of the bolt body (100), a nut (120) is arranged at the second end of the bolt body (100), and a first butt-joint part matched with an operating tool is arranged at the first end of the bolt body (100);

the filling body (200), the filling body (200) is used for being placed in a first member, a through hole for the bolt body (100) to pass through is formed in the filling body (200), expansion gaps (210) are formed in two ends of the filling body (200), and the expansion gaps (210) extend from the end portions of the filling body (200) to the middle portion; and (c) a second step of,

an expansion member (300), the expansion member (300) being adapted to cover the outside of the packing body (200), the expansion part (300) comprises a first half-shell (310) and two split-shells (320), the first half shell (310) and the two split shells (320) are spliced into a cylinder, a first end of the first half shell (310) is provided with a first inclined notch, a second end of the first half shell (310) is provided with a first wedge piece (313), one side of the two split shells (320) is connected, a second wedge piece (324) is formed at the position, facing the first inclined notch, of the two split shells (320) after being spliced, and a second inclined notch (330) is formed at the position, facing the first wedge piece (313), of the two split shells (320) after being spliced, the first half shell (310) and the middle parts of the two split shells (320) are provided with displacement gaps.

2. An expansion bolt assembly according to claim 1, characterized in that said second member comprises a connecting sphere (500), said connecting sphere (500) being provided with two mutually perpendicular abutment channels (510), said two abutment channels (510) extending through said connecting sphere (500), respectively, and each of said two abutment channels (510) being provided with a threaded hole at the end adjacent to each other.

3. An expansion bolt assembly according to claim 2, characterised in that the diameter of the connecting sphere (500) is larger than the diameter of the cylinder.

4. An expansion bolt assembly according to claim 1, characterized in that the outer diameter of the middle of the packing body (200) is smaller than the outer diameter of the two ends of the packing body (200), and the inner diameter of the place where the packing body (200) is provided with the expansion gap (210) is larger than the diameter of the through going hole.

5. An expansion bolt assembly according to claim 1, characterized in that the first inclined gap is defined by two first inclined edges (314), each of the two first inclined edges (314) being provided with a first snap shoulder (315), and the second wedge-shaped member (324) being provided on both sides with first snap teeth matching the first snap shoulders (315); second slope breach (330) are enclosed to close by two second slope edges and form, two the second slope edge all is provided with the second joint shoulder, the both sides of first wedge piece (313) be provided with second joint shoulder assorted second latch.

6. An expansion bolt assembly according to any one of claims 1 to 5, characterized in that the first half shell (310) is provided with first notches (311) on both sides of the location of the root of the first wedge member (313), a first stop (312) is provided between the first notch (311) and the side of the first half shell (310), second notches (322) are provided on both sides of the split shell (320) corresponding to the first stop (312), a second stop (323) is provided between the second notch (322) and the second inclined notch (330), and the displacement gap is the space between the bottoms of the first stop (312) and the second notch (322).

7. An expansion bolt assembly according to any one of claims 1-5, characterized in that the side where the two split shells (320) are connected is a vertical side, and the vertical sides of the two split shells (320) are provided with clamping bars (321) and clamping notches in a staggered manner, and the clamping notches and the clamping bars (321) cooperate with each other to connect the two split shells (320) together.

8. An expansion bolt assembly according to claim 1, characterised in that the diameter of the nut (120) is larger than the inner diameter of the place where the filler body (200) is provided with the expansion gap (210).