CN202673928U

CN202673928U - Expansion nail

Info

Publication number: CN202673928U
Application number: CN 201220308844
Authority: CN
Inventors: 董圣迪
Original assignee: Huainan Normal University
Current assignee: Huainan Normal University
Priority date: 2012-06-28
Filing date: 2012-06-28
Publication date: 2013-01-16
Anticipated expiration: 2022-06-28

Abstract

The utility model relates to an expansion nail, which comprises a nail core and a sleeve matched with the core, wherein the head of the sleeve is provided with an expansion part; the tail of the sleeve is provided with a power device; the nail core makes the expansion part on the head of the sleeve expanded under the action of the power device; the power device comprises a cylindrical shell matched with the tail of the sleeve; and an explosive is filled in the shell. By the technical scheme, the tail of the sleeve is provided with the power device; by the explosive force of the explosive in the power device, the nail core in the sleeve is pushed to generate forward acting force to expand the expansion part on the head of the sleeve, and the nail is nailed into a wall or other objects; and the expansion nail reaches the wall deeply, and can bear a heavy load.

Description

Expandable nail

Technical field

The utility model relates to a kind of expandable nail.

Background technique

Setscrew is comprised of parts such as screw rod and expansion tubes, screw rod tail is coniform, the internal diameter of circular cone greater than the expansion tube internal diameter when the nut screwing clamping time, screw rod is outwards mobile, by moving axially of screw thread tapered segment is moved, and then form very large positive pressure at the outer circumferential face of expansion tube, the angle of circular cone is very little in addition, thereby make between body of wall, expansion tube and circular cone and form friction self-locking, and then reach fixation.It generally is used for fastening on the materials such as cement, brick such as protective grating, rain cover, air-conditioning, but its is fixing very unreliable, if load has than big bang, may get loose, setscrew and be not suitable for some projects to bear a heavy burden supporting to have relatively high expectations namely, such as outdoor mountain-climbing is used, again such as the installation of ceiling fan etc.

The model utility content

The purpose of this utility model is to provide a kind of expandable nail, and this expandable nail can bear stronger heavy burden, and Applicable scope is wider.

For achieving the above object, the utility model has adopted following technological scheme: comprise blind rivet and the sleeve that matches with the blind rivet outside, the head of described sleeve is bulge, the afterbody of described sleeve also is provided with power plant, blind rivet makes the bulge distending of sleeve head under the active force of power plant, described power plant comprise the columniform housing that matches with the sleeve tail shape, and enclosure interior is equipped with explosive.

Sleeve of the present utility model is Split type structure, comprises first, second sleeve, links to each other by screw thread between first, second sleeve, and the head of described the first sleeve is bulge.

The first sleeve of the present utility model is provided with two Semicircular handles, and described two Semicircular handles are symmetrical arranged along the medial axis of sleeve.

Blind rivet of the present utility model comprises the ailhead of the body of rod and body of rod head, and the described body of rod links to each other by screw thread with ailhead, and described ailhead is conical, and the described body of rod is up-small and down-big vertebra platform shape.

As shown from the above technical solution, the utility model is by being provided with power plant at the sleeve afterbody, explosive power by explosive in the power plant, promote the blind rivet generation active force forward of sleeve inner, the bulge of distending sleeve head, hammer in metope or other object, it is darker that this expandable nail gos deep into the degree of depth of body of wall, can bear stronger heavy burden.

Description of drawings

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the plan view of the utility model blind rivet;

Fig. 3 is the view after the utility model uses.

Embodiment

Below in conjunction with accompanying drawing the utility model is described further:

A kind of expandable nail as shown in Figure 1 and Figure 2, comprise blind rivet 1 and the sleeve 2 that matches with blind rivet 1 outside, the head of sleeve 1 is bulge, the afterbody of sleeve 1 also is provided with power plant, blind rivet 1 makes the bulge distending of sleeve 2 heads under the active force of power plant, power plant comprise the columniform housing 3 that matches with sleeve 2 tail shapes, and explosive 4 is equipped with in housing 3 inside.

As preferred version of the present utility model, sleeve 2 is Split type structure, comprises first,

second sleeve

5,6, link to each other by screw thread between first,

second sleeve

5,6, the head of the first sleeve 5 is bulge, and expandable nail is after being used to complete like this, and sleeve 6 can disassemble and reuse.

As preferred version, the first sleeve 5 is provided with 7, two Semicircular handles 7 of two Semicircular handles and is symmetrical arranged along the medial axis of sleeve 2, provides power-assisted for the scaler when purpose that handle 7 is set is to hang some objects or climbs the mountain out of doors.

Blind rivet 1 comprises the ailhead 9 of the body of rod 8 and the body of rod 8 heads, and the body of rod 8 and ailhead 9 link to each other by screw thread, and described ailhead 9 is taper shape, and the body of rod 8 is up-small and down-big vertebra platform shape.

During use, first the body of rod 8 is passed the first sleeve 5, fixing with ailhead 9 again, the second sleeve 6 and the first sleeve 5 are fixed, the part that at this moment will assemble by manpower tentatively hammers into body of wall again, namely the bulge of the first sleeve 5 heads will be hammered in the body of wall, at last will be with pack into the afterbody of the second sleeve 6 of the housing 3 of explosive 4, make its blast by knocking housing 3, push blind rivet, can be folded down the second sleeve 6 after finishing and reuse.Explosive in the housing 3 should take the consumption that do not injure human body as standard, can adopt the explosive in the bullet.

Above-described embodiment is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model all should fall in the definite protection domain of the utility model claims.

Claims

1. expandable nail, comprise blind rivet (1) and the sleeve (2) that matches with blind rivet (1) outside, the head of described sleeve (1) is bulge, it is characterized in that: the afterbody of described sleeve (1) also is provided with power plant, blind rivet (1) makes the bulge distending of sleeve (2) head under the active force of power plant, described power plant comprise the columniform housing (3) that matches with sleeve (2) tail shape, and explosive (4) is equipped with in housing (3) inside.

2. expandable nail according to claim 1, it is characterized in that: described sleeve (2) is Split type structure, comprise first, second sleeve (5,6), link to each other by screw thread between first, second sleeve (5,6) that the head of described the first sleeve (5) is bulge.

3. expandable nail according to claim 2, it is characterized in that: described the first sleeve (5) is provided with two Semicircular handles (7), and described two Semicircular handles (7) are symmetrical arranged along the medial axis of sleeve (2).

4. expandable nail according to claim 1, it is characterized in that: described blind rivet (1) comprises the ailhead (9) of the body of rod (8) and the body of rod (8) head, the described body of rod (8) links to each other by screw thread with ailhead (9), described ailhead (9) is conical, and the described body of rod (8) is up-small and down-big vertebra platform shape.