CN111720408B

CN111720408B - Large-load fastener

Info

Publication number: CN111720408B
Application number: CN202010608430.7A
Authority: CN
Inventors: 富胜波
Original assignee: Haiyan Tebang Technology Co ltd
Current assignee: Haiyan Tebang Technology Co ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2022-04-08
Anticipated expiration: 2040-06-29
Also published as: CN111720408A

Abstract

The invention discloses a large-load fastener which comprises a sleeve body, a plurality of elastic bodies, a plurality of blocking bodies, elastic rings, a screw rod body, screw heads and a plurality of elastic ring taking mechanisms, wherein one ends of all the elastic bodies are fixedly connected with the rear end of the sleeve body, the other ends of the elastic bodies are respectively provided with the blocking bodies, the elastic rings are sleeved on the rear ends of all the blocking bodies, after the elastic rings are taken off from the blocking bodies, the blocking bodies are transformed into a state vertical to the sleeve body under the action of the elastic bodies, the screw rod body penetrates through the sleeve body, the screw heads are arranged at the rear ends of the screw rod body, and the elastic ring taking mechanisms which correspond to the elastic rings and do not correspond to the blocking bodies are arranged at the front ends of the screw heads.

Description

Large-load fastener

[ technical field ] A method for producing a semiconductor device

The invention relates to the technical field of fasteners, in particular to the technical field of heavy-load fasteners.

[ background of the invention ]

The hollow gecko has the same function as a screw and is used in the occasions where self-tapping screws and expansion screws are not suitable. Is suitable for fixing: lamps, bookshelves, skirting boards, switches, hanging cabinet curtain chutes and the like are suitable for light load installation (the existing hollow gecko bends and deforms the expansion arm through extrusion to form a blocking part, so that the blocking part is easy to deform under a large load). If in steel pipe concrete structure, beam column connected node department etc. because the post cross-section is mostly closed cross-section, can not operate on both sides, only can unilateral connection installation, consequently can't adopt the bolt and nut that commonly uses to connect fastening method and carry out the fastening installation. The hollow gecko can obtain good effect, but is suitable for light load installation, and the fastening effect cannot meet the design requirement under larger load, so that the application range is small.

[ summary of the invention ]

The invention aims to solve the problems in the prior art, and provides a large-load fastener which can be used for realizing large load and improving the application range.

In order to achieve the purpose, the invention provides a large-load fastener which comprises a sleeve body, a plurality of elastic bodies, a plurality of blocking bodies, elastic rings, a screw rod body, a screw head and a plurality of elastic ring taking mechanisms, wherein one ends of all the elastic bodies are fixedly connected with the rear end of the sleeve body, the other ends of the elastic bodies are respectively provided with the blocking bodies, the elastic rings are sleeved on the rear ends of all the blocking bodies, after the elastic rings are taken off from the blocking bodies, the blocking bodies are converted into a state vertical to the sleeve body under the action of the elastic bodies, the screw rod body penetrates through the sleeve body, the screw head is arranged at the rear end of the screw rod body, and the elastic ring taking mechanisms which correspond to the elastic rings and do not correspond to the blocking bodies are arranged at the front ends of the screw head.

Preferably, the outer diameter of the sleeve body is equal to the diameter of the screw head.

Preferably, the rear ends of the blocking bodies are provided with bulges for the elastic rings to be sleeved with.

Preferably, the front end of the screw rod body is provided with a regular polygonal groove.

Preferably, the elastic body is a torsion spring.

Preferably, the screw rod body comprises a body with a square cross section and a threaded rod integrally formed at the front end of the body, and the sleeve body is sleeved on the body in a sliding manner.

Preferably, the threaded rod is provided with a compression nut at the front end of the sleeve body, and the periphery of the compression nut does not exceed the edge of the sleeve body.

Preferably, the elastic ring taking mechanism comprises a seat body and an accommodating groove which is arranged on the outer side surface of the seat body and matched with the elastic ring, and the front end of the seat body is an inclined plane.

The invention has the beneficial effects that: according to the invention, the elastic ring overcomes the acting force of the elastic body, so that the blocking body is kept in a parallel state with the screw rod body and is convenient to insert into the mounting hole, the elastic ring is taken down from the bulge through the elastic ring taking mechanism, at the moment, the blocking body is in a vertical state with the sleeve body under the action of the elastic body, the blocking of the screw head is realized, and the screw head cannot be pulled out from the mounting hole; the blocking part formed by bending and deforming the expansion arm of the traditional hollow gecko is replaced by the blocking body, so that the load is improved; compared with the prior art, can bear greatly, improve application scope to easy dismounting, repeatedly usable.

The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.

[ description of the drawings ]

FIG. 1 is a schematic structural view of a high load fastener of the present invention;

FIG. 2 is a top view of the elastic ring mechanism disposed on the screw head;

figure 3 is a schematic view of the installation of a heavy duty fastener of the present invention.

In the figure: 1-sleeve body, 2-elastic body, 3-blocking body, 4-elastic ring, 5-screw body, 6-screw head, 7-elastic ring taking mechanism, 8-nut, 9-mounting hole, 10-first member, 11-second member, 12-groove, 13-compression nut, 31-bulge, 51-body, 52-threaded rod, 71-seat body and 72-accommodating groove.

[ detailed description ] embodiments

Referring to fig. 1, 2 and 3, the invention relates to a large-load fastener, which comprises a sleeve body 1, a plurality of elastic bodies 2, a plurality of blocking bodies 3, elastic rings 4, a screw body 5, a screw head 6 and a plurality of elastic ring taking mechanisms 7, wherein one end of each elastic body 2 is fixedly connected with the rear end of the sleeve body 1, the other end of each elastic body 2 is provided with the blocking body 3, the elastic rings 4 are sleeved on the rear ends of the blocking bodies 3, after the elastic rings 4 are taken off from the blocking bodies 3, the blocking bodies 3 are converted into a state vertical to the sleeve body 1 under the action of the elastic bodies 2, the screw body 5 penetrates through the sleeve body 1, the screw head 6 is arranged at the rear end of the screw body 5, the elastic ring taking mechanism 7 which corresponds to the elastic ring 4 and does not correspond to the blocking bodies 3 is arranged at the front end of the screw head 6, the outer diameter of the sleeve body 1 is equal to the diameter of the screw head 6, the rear end of the barrier body 3 all is equipped with the arch 31 that can supply 4 covers of elastic ring to establish, the front end of the screw body 5 is equipped with regular polygon's recess 12, elastomer 2 is the torsional spring, the screw body 5 includes that the cross section is the body 51 of square and the threaded rod 52 of integrated into one piece on body 51 front end, the cover body 1 slidable cover is established on body 51, threaded rod 52 is equipped with gland nut 13 at the front end of the cover body 1, gland nut 13's periphery does not surpass the edge of the cover body 1, get elastic ring mechanism 7 include pedestal 71 and establish on pedestal 71's lateral surface and with elastic ring 4 matched with holding tank 72, pedestal 71's front end is the inclined plane.

The working process of the invention is as follows:

in the working process of the large-load fastener, the fastener is inserted into the mounting hole 9 of the first component 10 until the rear end of the sleeve body 1 enters the inner side of the mounting hole 9, then the sleeve body 1 is fixed by one hand, the screw body 5 is pulled forwards by the other hand, the screw body 5 drives the seat body 71 to move forwards through the screw head 6, when the seat body 71 passes through the elastic ring 4, the elastic ring 4 is clamped into the accommodating groove 72 through the front end inclined plane guide of the seat body 71, then the screw body 5 is pushed backwards, the screw body 5 drives the seat body 71 to move backwards through the screw head 6, so as to drive the elastic ring 4 clamped into the accommodating groove 72 to be separated from the bulge 31, at the moment, the blocking body 3 is in a vertical state with the sleeve body 1 under the action of the elastic body 2, then the screw body 5 is pulled forwards, so that the screw head 6 presses the blocking body 3 on the inner side of the first component 10, and then the compression nut 13 is screwed tightly, the second component 11 is then placed over the sleeve body 1 and the cap nut 8 is screwed on the threaded rod 52 and tightened.

During the dismantlement, pull down nut 8 and second component 11, then twist and move gland nut 13 and rotate and move forward to a certain distance, then push the screw body 5 backward to a certain distance, make spiral shell head 6 keep away from and block body 3, then pull the screw body 5 and cover body 1 forward simultaneously, can follow the mounting hole 9 and draw out.

The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.

Claims

1. A heavy load fastener characterized by: comprises a sleeve body (1), a plurality of elastic bodies (2), a plurality of blocking bodies (3), elastic rings (4), a screw rod body (5), a screw head (6) and a plurality of elastic ring mechanisms (7) of taking, wherein one end of all the elastic bodies (2) is fixedly connected with the rear end of the sleeve body (1), the other end of each elastic body (2) is provided with the blocking body (3), the elastic rings (4) are sleeved on the rear ends of all the blocking bodies (3), the elastic rings (4) are taken down from the blocking bodies (3), the blocking bodies (3) are transformed into a vertical state with the sleeve body (1) under the action of the elastic bodies (2), the screw rod body (5) is penetrated in the sleeve body (1), the rear end of the screw rod body (5) is provided with the screw head (6), the front end of the screw head (6) is provided with the elastic ring mechanisms (7) of taking corresponding to the elastic rings (4) and not corresponding to the blocking bodies (3), the rear end of the blocking body (3) is provided with a protrusion (31) which can be sleeved with an elastic ring (4), the screw body (5) comprises a body (51) with a square cross section and a threaded rod (52) which is integrally formed on the front end of the body (51), the body (51) is sleeved with a sleeve body (1) in a sliding manner, the elastic ring mechanism (7) is taken to comprise a seat body (71) and an accommodating groove (72) which is arranged on the outer side surface of the seat body (71) and is matched with the elastic ring (4), and the front end of the seat body (71) is an inclined surface.

2. A high load fastener according to claim 1 wherein: the outer diameter of the sleeve body (1) is equal to the diameter of the screw head (6).

3. A high load fastener according to claim 1 wherein: the front end of the screw rod body (5) is provided with a regular polygonal groove (12).

4. A high load fastener according to claim 1 wherein: the elastic body (2) is a torsion spring.

5. A high load fastener according to claim 1 wherein: the threaded rod (52) is provided with a compression nut (13) at the front end of the sleeve body (1), and the periphery of the compression nut (13) does not exceed the edge of the sleeve body (1).