CN213954106U

CN213954106U - Hot galvanizing hollow wall expansion screw

Info

Publication number: CN213954106U
Application number: CN202022400656.6U
Authority: CN
Inventors: 郭新仁
Original assignee: Shanghai Qingzhen Communication Engineering Co ltd
Current assignee: Shanghai Qingzhen Communication Engineering Co ltd
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2021-08-13
Anticipated expiration: 2030-10-26

Abstract

The utility model discloses a hot galvanizing hollow wall expansion screw, which comprises an expansion screw body, wherein the expansion screw body consists of a screw rod, an expansion pipe, a first vertex clip, a second vertex clip, a flat washer, a spring washer and two hexagon nuts, one end of the screw rod is in threaded connection with the expansion pipe, a clamping groove is arranged on the surface of the expansion pipe, a rotating pin shaft is fixedly arranged inside the clamping groove, and the rotating pin shaft is rotationally connected with the first vertex clip and the second vertex clip. Can be widely used in hollow walls, foam brick walls and the like, and has strong practicability.

Description

Hot galvanizing hollow wall expansion screw

Technical Field

The utility model relates to an expansion screw, in particular to hot-galvanize hollow wall expansion screw belongs to expansion screw technical field.

Background

The expansion screw is generally a metal expansion screw, and the expansion screw is fixed by utilizing the wedge-shaped slope to promote expansion to generate friction bond force so as to achieve the fixing effect. One end of the screw is provided with threads, and the other end of the screw is provided with conicity. The outer surface of the wall is covered by an iron sheet (some steel pipes), a half of an iron sheet cylinder (steel pipe) is provided with a plurality of notches, the iron sheet cylinder (steel pipe) and the notches are plugged into a hole drilled on the 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 wall is generally used for fastening protective guards, rain awnings, air conditioners and the like on materials such as cement, bricks and the like. However, it is not very reliable in its fixation and may come loose if the load is subjected to large shocks, so that it is not recommended to install ceiling fans and the like.

The multi-purpose reinforced concrete shear wall structure for the multi-storey small high-rise dwelling houses in China. The structural system has the problems of large structural rigidity, large structural self weight, large earthquake action and easy brittle failure of partial wall body, and particularly, the brittle failure is easily caused by the fact that the rigidity of wall limbs and the shearing ratio of the wall limbs of the wall space between windows at the position of the window opening of the outer wall are different. The shear wall has a complex structure effect, i.e. it is not a plate structure or a rod structure, and the stress distribution is very uneven. The use of a wall framed hollow wall construction system is suggested. The wall-type frame hollow wall structure system can reduce the earthquake action, avoid brittle failure and save materials.

The expansion screws on the existing market cannot play a good role in fixing hollow walls, foam brick walls and the like, and are easy to fall off when experiencing wind, sunshine and large vibration for a long time, so that the expansion screws have great potential safety hazards.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a hot galvanizing cavity wall expansion screw to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: hot-galvanize hollow wall inflation screw, including the inflation screw body, the inflation screw body comprises screw rod, expand tube, first summit checkpost, second summit checkpost, plain washer, spring washer and two hexagon nuts, the one end and the expand tube through thread connection of screw rod, the draw-in groove has been seted up on the surface of expand tube, the fixed rotation round pin axle that is equipped with in inside of draw-in groove, the rotation round pin axle rotates with first summit checkpost and second summit checkpost to be connected.

As an optimized technical proposal of the utility model, the expansion screw body is made of Q235 round steel materials.

As an optimized technical scheme of the utility model, the surface coating of inflation screw body has hot-galvanize coating.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses hot-galvanize hollow wall expansion screw, expand tube through being equipped with, first summit checkpost, second summit checkpost and rotational pin, use electric impact drill (hammer) earlier and drill out corresponding size's hole on hollow wall, again the bolt, the expand tube is adorned in the hole, rotatory screw rod makes first summit checkpost and second summit checkpost safely strut, two hexagon nuts of screwing can make the bolt, the expand tube, expand tightly between installed part and the fixed body and become an organic whole, play fine fixed action, avoid experiencing for a long time that the wind blows the sun and great vibrations and the phenomenon that takes place to drop, reduce the potential safety hazard, can very wide use at hollow wall, foam brick wall etc., therefore, the clothes hanger is strong in practicability.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. a screw; 2. a hexagonal nut; 3. a flat washer; 4. a spring washer; 5. expanding the tube; 6. a first vertex clasp; 7. a second vertex clip; 8. rotating the pin shaft; 9. a clamping groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution of hot-dip galvanized hollow wall expansion screw:

according to fig. 1, including the inflation screw body, the inflation screw body comprises screw rod 1, expand tube 5, first summit checkpost 6, second summit checkpost 7, plain washer 3, spring washer 4 and two hexagon nuts 2, and screw rod 1's one end and expand tube 5 run through threaded connection, and draw-in groove 9 has been seted up on the surface of expand tube 5, and the inside of draw-in groove 9 is fixed and is equipped with rotation round pin axle 8, and rotation round pin axle 8 rotates with first summit checkpost 6 and second summit checkpost 7 to be connected.

According to the figure 1, the expansion screw body is made of Q235 round steel materials, the Q235 round steel has good comprehensive resistance, the strength, the plasticity, the welding performance and the like are well matched, and the hot galvanizing coating is coated on the surface of the expansion screw body, so that the corrosion resistance of the expansion screw body is improved.

When specifically using, the utility model discloses hot-galvanize cored wall inflation screw, drill out the hole of corresponding size on the hollow wall with electric impact drill (hammer) earlier, again bolt 1, expand tube 5 dress hole, rotatory screw rod 1 makes first summit checkpost 6 and the 7 safe struts of second summit checkpost, two hexagon nuts 2 of screwing can make bolt 1, expand tube 5, expand tightly between installed part and the fixed body and become an organic whole, play fine fixed action, avoid experiencing for a long time that the wind blows the sun and great vibrations and take place the phenomenon that drops, reduce the potential safety hazard, can very wide use at the hollow wall, foam brick wall etc., the practicality is strong.

In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Hot-galvanize hollow wall expansion screw, including the expansion screw body, its characterized in that, the expansion screw body comprises screw rod (1), expand tube (5), first summit checkpost (6), second summit checkpost (7), plain washer (3), spring washer (4) and two hexagon nuts (2), the one end and the expand tube (5) of screw rod (1) run through threaded connection, draw-in groove (9) have been seted up on the surface of expand tube (5), the inside of draw-in groove (9) is fixed and is equipped with rotation round pin axle (8), rotation round pin axle (8) rotate with first summit checkpost (6) and second summit checkpost (7) and are connected.

2. The hot-dip galvanized hollow wall expansion screw according to claim 1, characterized in that: the expansion screw body is made of Q235 round steel materials.

3. The hot-dip galvanized hollow wall expansion screw according to claim 1, characterized in that: the surface of the expansion screw body is coated with a hot galvanizing coating.