CN2474774Y - Window type expansion draw nail - Google Patents

Abstract

A window bulging blind rivet comprises a bolt, a nail base, a screw cap and the like, in particular to a window bulging blind rivet structure applicable to cavity wall. The utility model is characterized in that the nail seat body is provided with an upper and a lower dilation segments which are both distributed with a plurality of strip holes averagely. A strip rib is formed between the strip holes, and the middle segments of the strip ribs appreciably extrude outwards, further forming an outer zigzag line. Through the upper and the lower dilation segments, the provided blind rivet enters the cavity of cavity wall to effectively form inflated wedge and kink fixation.

Description

Window formula expansion draw nail

The utility model relates to a kind of window formula expansion draw nail, refers to a kind of window formula expansion draw nail that is applicable to that hollow wall uses especially.

Figure 1 shows that the wallboard 10 that general hollow brick is built into; insert blind rivet 20 to provide when hanging article when on wallboard 10, being drilled with hole 11; normal because of knowing its hollow article 12 positions of hollow brick; after making that blind rivet 20 is inserted hole 11; the position that nail seat 22 extending sections 23 are subjected to the pulling force dilatancy, the time regular meeting drop on hollow article 12 places so that can't block really and tie in the hole 11 of wallboard 10; cause blind rivet 20 can't be consolidated in wallboard 10, make the failure of burying underground of blind rivet 20.

In view of this, this creator gos deep into observational study to be engaged in the rich experiences that relevant industries are accumulated for many years, creates this case window formula expansion draw nail.

At the shortcoming that prior art exists, main purpose of the present utility model is to provide a kind of used blind rivet of wallboard that hollow brick is built into that is suitable for, and has at least an extending section can be fixed in the hole to reach, to obtain preferable fixed effect.

For achieving the above object, the utility model is achieved through the following technical solutions: a kind of window formula expansion draw nail, combined by members such as a bolt, a nail seat and nuts, it is characterized in that: the nail seat body is provided with upper and lower two sections extending sections, then wait on each extending section and be distributed with some strip holes, and just form a rectangular rib between each strip hole, and the middle section position of each rectangular rib is slightly outwards outstanding, and has an outer broken line.

Its middle section position of rectangular rib on upper and lower two extending sections of nail seat is slightly outwards outstanding, and has an outer broken line, and the below of broken line also is provided with broken line in outside.

By the utility model window formula expansion draw nail, overcome the shortcoming of prior art, reached the purpose of above-mentioned creation, the utlity model has good fixed effect.

The utility model is described in further detail below in conjunction with drawings and the specific embodiments.

Fig. 1 is the schematic representation of habit formula blind rivet and brick cavity wall;

Fig. 2 is a three-dimensional exploded view of the present utility model;

Fig. 3 is a generalized section of the present utility model;

Fig. 4 is another embodiment's of the utility model a three-dimensional exploded view;

Fig. 5 is another embodiment's of the utility model a generalized section.

See also Fig. 2 and shown in Figure 3, the utility model mainly is that wherein this nail seat 32 front ends 323 welding one nut 33 can supply locking of a bolt 31, it is characterized in that by blind rivets that member combined 30 such as 1 and one nail seats 32 on the bolt:

Nail seat 32 bodies are provided with upper and lower two sections extending sections 321,322, make that each extending section 321,322 is first-class to be distributed with some strip holes 3211,3221, and just form a rectangular rib 3212,3222 between each strip hole 3211,3221, and the middle section position of each rectangular rib 3212,3222 is slightly outwards outstanding, and has an outer broken line 3213,3223, by this two upper and lower extending section 321,322, to provide blind rivet 30 to penetrate in wallboard 10 holes 11 that hollow brick is built into, the card knot that can form effective expansion is fixing.

Combination by said elements, blind rivet 30 is penetrated in the hole 11 of wallboard 10, when being subjected to pulling force, bolt 31 drives nail seat 32 post-tensionings, nail seat 32 upper and lower extending sections 321,322 are subjected to pulling force and produce distortion, this at present extending section 322 because of being positioned at the unsettled effectively card knot wallboard 10 of failing in hollow article 12 positions, last extending section 321 is so but arranged just not in hollow article 12 positions, so nail seat 32 smooth inflating clip knots can be fixed in this hole 11 (as shown in Figure 3); So the utility model can utilize the structure of compound upper and lower two extending sections 321,322 with default hollow brick 10 hollow articlies 12 place spans, effectively solve habit formula blind rivet and can't block the fixing shortcoming of knot because of unsettled.

Fig. 4, shown in 5, be another embodiment of the utility model, wherein blind rivet 40 is also constituted by a nail seat 42 and one bolt 41, wherein front end 423 welding one nut 43 of this blind rivet 40 can be locked for a bolt 41 and be spirally connected, on nail seat 42, also be provided with in addition, following two extending sections 421,422, make each extending section 421, the same grade is distributed with some roads strip hole 4211 on 422,4221, and each strip hole 4211, just form a rectangular rib 4212 between 4222,4222, and each rectangular rib 4212,4222 middle section position is slightly outwards outstanding, and has an outer broken line 4213,4223, and broken line 4213 outside, 4223 below also is provided with broken line 4214 in, 42224, interior by this broken line 4214,4224 can provide extending section 421,422 are subjected to pulling force and during expanse, can force from outer broken line 4213,4223 to interior broken line 4214, position between 4224 forms one and fits tightly, and upwarp slightly, so more help extending section 421,422 tightr being embedded among the hole 11.

In sum, the utility model is compared with article commonly used, really can effectively solve the problem that article commonly used exist always, the utility model thing commonly used really on effect is promoted many, and do not see publication or public use, more be defined as a quite excellent creation, conformed with the application important document of utility model patent, file an application in accordance with the law.

Claims (2)

1, a kind of window formula expansion draw nail, combined by members such as a bolt, a nail seat and nuts, it is characterized in that: the nail seat body is provided with upper and lower two sections extending sections, then wait on each extending section and be distributed with some strip holes, and just form a rectangular rib between each strip hole, and the middle section position of each rectangular rib is slightly outwards outstanding, and has an outer broken line.

2, window formula expansion draw nail as claimed in claim 1 is characterized in that: its middle section position of rectangular rib on upper and lower two extending sections of nail seat is slightly outwards outstanding, and has an outer broken line, and the below of broken line also is provided with broken line in outside.

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