CN213511578U

CN213511578U - Expansion nut with multi-section stable structure

Info

Publication number: CN213511578U
Application number: CN202022474357.7U
Authority: CN
Inventors: 黄强
Original assignee: Wuhan Xinliwei Electric Co ltd
Current assignee: Wuhan Xinliwei Electric Co ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-06-22
Anticipated expiration: 2030-10-30

Abstract

The utility model provides an expansion nut with a plurality of sections and stable structure, the screw cover is established inside the expansion pipe, and the pile head card of screw tip makes the expansion pipe tip radially expand at the expansion end of expansion pipe, expansion end is equipped with ring groove, and the pile head card that the pulling screw made the tip is inside ring groove, and the pile head card of screw is inside ring groove of expansion pipe, makes the expansion end of expansion pipe keep expansion structure always, makes whole expansion nut fix on the wall body, holds the locking taper sleeve of installation toper structure at the crimple of expansion pipe tail end, and the locking taper sleeve plays fixed expansion pipe outer end, makes the expansion pipe installation more stable, and compact structure is practical, is worth extensively promoting.

Description

Expansion nut with multi-section stable structure

Technical Field

The utility model belongs to the technical field of the expansion nut and specifically relates to a structure expansion nut is stabilized to multisection.

Background

When the expansion bolt is used, firstly, a hole with a corresponding size is drilled on the fixed body by using an impact electric drill (hammer), then the bolt and the expansion pipe are arranged in the hole, and the bolt, the expansion pipe, the mounting piece and the fixed body can be expanded into a whole by screwing the nut. But the looseness appears in current expansion bolts easily in the installation for expansion bolts's grip greatly descends, causes equipment or shelf to lose support easily and drops, very dangerous.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a multisection stable structure expansion nut, solves expansion bolt's the power of grabbing to descend greatly, causes equipment or shelf to lose the support easily and drops, very has dangerous problem.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the utility model provides an expansion nut of multisection stable structure, the screw cover is established at the inflation intraduct, and the pile head card of screw tip makes the radial expansion of inflation pipe tip at the inflation end of inflation pipe, inflation end tip is equipped with ring groove, and the pulling screw makes the pile head card of tip inside ring groove.

In the preferred scheme, two sides of the outer surface of the annular clamping groove are provided with sunken annular grooves.

In the preferred scheme, the other end of the expansion pipe is provided with a contraction end, the contraction end is provided with a plurality of notches, and the outside of the contraction end is provided with threads.

In the preferred scheme, the outside of the tightening end is provided with a locking taper sleeve, and the locking taper sleeve is in threaded connection with the tightening end.

In the preferred scheme, locking taper sleeve is equipped with the toper inclined plane towards inflation end one end.

In the preferred scheme, the other end of the locking taper sleeve is provided with a plurality of locking ports.

In the preferred scheme, still be equipped with locking rand, locking rand one end is equipped with a plurality of locking teeth, locking tooth and locking mouth cooperation.

In the preferred scheme, the locking rand other end is equipped with twists tight head, it is equipped with hexagonal face to twist tight first surface, twists tight first internal surface and is equipped with hexagonal face.

The utility model provides an expansion nut with a multi-section stable structure, the pile head of the screw is clamped in the annular clamping groove of an expansion pipe, the expansion end of the expansion pipe is always kept in an expansion structure, the whole expansion nut is fixed on a wall body, the locking taper sleeve of the taper structure is installed at the contraction end of the tail end of the expansion pipe, the locking taper sleeve plays the outer end of the fixed expansion pipe, the installation of the expansion pipe is more stable, the expansion pipe has better popularization value, the structure is compact and practical, and the expansion nut is worth wide popularization.

Drawings

The invention will be further explained with reference to the following figures and examples:

FIG. 1 is a front view structural diagram of the present invention;

FIG. 2 is a front sectional view of the structure of the present invention;

FIG. 3 is a cross-sectional structural view of the expansion pipe of the present invention;

FIG. 4 is a general block diagram of the present invention;

FIG. 5 is a disassembled structure view of the present invention;

FIG. 6 is a structural view of the locking taper sleeve of the present invention;

fig. 7 is a structural view of the locking taper sleeve and the locking collar of the present invention;

in the figure: a screw 1; a pile head 101; a threaded end 102; an expansion pipe 2; a ring slot 201; an expansion end 202; a tightening end 203; a notch 204; locking the taper sleeve 3; a locking port 301; a lock nut 4; a locking collar 5; a tightening head 501; locking teeth 502.

Detailed Description

As shown in fig. 1 to 7, in the expansion nut with the multi-section stable structure, a bolt 1 is sleeved inside an expansion pipe 2, a pile head 101 at the end of the bolt 1 is clamped at an expansion end 202 of the expansion pipe 2 to radially expand the end of the expansion pipe 2, an annular clamping groove 201 is formed at the end of the expansion end 202, and the pile head 101 at the end is clamped inside the annular clamping groove 201 by pulling the bolt 1. The pile head 101 of the bolt 1 is clamped in the annular clamping groove 201 of the expansion pipe 2, so that the expansion end 202 of the expansion pipe 2 always keeps an expansion structure, the whole expansion nut is fixed on a wall body, the tightening end 203 at the tail end of the expansion pipe 2 is provided with the locking taper sleeve 3 with a taper structure, the locking taper sleeve 3 plays a role of fixing the outer end of the expansion pipe 2, so that the expansion pipe 2 is more stably installed,

in a preferred scheme, two sides of the outer surface of the annular clamping groove 201 are provided with recessed annular grooves. In the structure shown in fig. 3, the annular groove of the annular clamping groove 201 facilitates the expansion end 202 to deform and expand to be clamped in the wall.

In a preferable scheme, the other end of the expansion pipe 2 is provided with a tightening end 203, the tightening end 203 is provided with a plurality of notches 204, and the outside of the tightening end 203 is provided with threads. The outside of the tightening end 203 is provided with a locking taper sleeve 3, and the locking taper sleeve 3 is in threaded connection with the tightening end 203. Locking taper sleeve 3 is installed at crimple end 203, and when installing locking taper sleeve 3, the outer inclined plane of locking taper sleeve 3 one end just blocks in the wall body outside, makes 2 outer ends of expansion pipe also can be through locking taper sleeve 3 chucking.

In a preferred embodiment, the locking taper sleeve 3 is provided with a tapered slope towards the expansion end 202. The conical inclined plane is convenient to be clamped inside the wall body.

In a preferred scheme, the other end of the locking taper sleeve 3 is provided with a plurality of locking ports 301. The locking mouth 301 is used for locking the locking taper sleeve 3.

In a preferred scheme, a locking collar 5 is further arranged, one end of the locking collar 5 is provided with a plurality of locking teeth 502, and the locking teeth 502 are matched with the locking port 301. The locking collar 5 is clamped on the locking port 301, so that the locking taper sleeve 3 is conveniently locked.

In the preferred scheme, the other end of the locking collar 5 is provided with a screwing head 501, the outer surface of the screwing head 501 is provided with a hexagonal surface, and the inner surface of the screwing head 501 is provided with a hexagonal surface. The configuration shown in figure 7 provides hexagonal surfaces on the outer and inner surfaces of the tightening head 501 to facilitate rotational locking of the locking collar 5.

The above-mentioned embodiments are merely preferred embodiments of the present invention, and should not be considered as limitations of the present invention, and the protection scope of the present invention should be defined by the technical solutions described in the claims, and includes equivalent alternatives of technical features in the technical solutions described in the claims. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.

Claims

1. The utility model provides a multisection stable structure inflation nut which characterized by: the expansion pipe (2) is sleeved with the screw (1), the end part of the expansion pipe (2) is radially expanded by clamping the pile head (101) at the end part of the screw (1) at the expansion end (202) of the expansion pipe (2), the end part of the expansion end (202) is provided with an annular clamping groove (201), and the pile head (101) at the end part is clamped inside the annular clamping groove (201) by pulling the screw (1).

2. The multi-joint stable structure expansion nut of claim 1, wherein: two sides of the outer surface of the annular clamping groove (201) are provided with sunken annular grooves.

3. The multi-joint stable structure expansion nut of claim 1, wherein: the other end of the expansion pipe (2) is provided with a tightening end (203), the tightening end (203) is provided with a plurality of notches (204), and threads are arranged on the outer portion of the tightening end (203).

4. The multi-joint stable structural expansion nut of claim 3, wherein: the outside of the tightening end (203) is provided with a locking taper sleeve (3), and the locking taper sleeve (3) is in threaded connection with the tightening end (203).

5. The multi-joint stable structure expansion nut of claim 4, wherein: one end of the locking taper sleeve (3) facing the expansion end (202) is provided with a tapered inclined surface.

6. The multi-joint stable structural expansion nut of claim 5, wherein: the other end of the locking taper sleeve (3) is provided with a plurality of locking ports (301).

7. The multi-joint stable structure expansion nut of claim 4, wherein: the locking device is further provided with a locking collar (5), one end of the locking collar (5) is provided with a plurality of locking teeth (502), and the locking teeth (502) are matched with the locking port (301).

8. The multi-joint stable structural expansion nut of claim 7, wherein: the other end of the locking collar (5) is provided with a screwing head (501), the outer surface of the screwing head (501) is provided with a hexagonal surface, and the inner surface of the screwing head (501) is provided with a hexagonal surface.