CN214888203U

CN214888203U - Gecko for repairing vehicle

Info

Publication number: CN214888203U
Application number: CN202120218061.0U
Authority: CN
Inventors: 方才学; 曹念伟
Original assignee: Jiashan Jinxiang Machinery Co ltd
Current assignee: Jiashan Jinxiang Machinery Co ltd
Priority date: 2021-01-26
Filing date: 2021-01-26
Publication date: 2021-11-26
Anticipated expiration: 2031-01-26

Abstract

The utility model discloses a gecko for vehicle repair, which belongs to the technical field of expansion bolts and aims to provide a gecko for vehicle repair, wherein an expansion sleeve can be more firmly connected with a drilled hole, the gecko comprises a rod body and an expansion sleeve, the rod body consists of a screw rod and an expansion head which are connected in sequence, the expansion sleeve is provided with at least three expansion pieces, the three expansion pieces are uniformly distributed around the expansion sleeve at intervals, and a U-shaped notch is arranged between every two adjacent expansion pieces; the expansion pieces are provided with clamping strips, and the clamping strips incline towards the direction of the expansion rod; the clamping strips on two adjacent expansion sheets are arranged in a staggered mode, and the cross sections of the clamping strips are triangular.

Description

Gecko for repairing vehicle

Technical Field

The utility model relates to an expansion bolts, more specifically says that it relates to a gecko is repaiied to car.

Background

The car repair gecko comprises a screw rod cylinder, an expansion head, an expansion sleeve, a nut, a washer, a gasket and other parts. The existing expansion head is generally a circular truncated cone, and the expansion sleeve is a straight sleeve with a plurality of straight slits at one end. The nut or the screw rod cylinder is screwed, and the expansion head expands the expansion sleeve, so that the car repair gecko is expanded in the drilled hole.

The expansion sleeve of gecko is repaiied to car has an expansion force to the inner wall in the drilling hole when strutting, and in order to fix more firmly, expansion sleeve's surface still is provided with the location arch usually, and the bellied surface in location is circular-arc, and the effect that ordinary location arch played is very limited, can not be fine play further reinforced effect.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide an expansion sleeve can be connected more firm car with drilling and repaiies gecko.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a gecko for car repair comprises a rod body and an expansion sleeve, wherein the rod body is composed of a screw rod and an expansion head which are sequentially connected, the expansion sleeve is provided with at least three expansion pieces, the three expansion pieces are uniformly distributed around the expansion sleeve at intervals, and a U-shaped notch is formed between every two adjacent expansion pieces; the expansion pieces are provided with clamping strips, and the clamping strips incline towards the direction of the expansion rod; the clamping strips on two adjacent expansion sheets are arranged in a staggered mode.

Furthermore, the section of the clamping strip is triangular.

Furthermore, a plurality of clamping strips are arranged on the expansion sheet, and the clamping strips are uniformly distributed on the axis of the expansion sleeve.

Furthermore, a plurality of clamping strips on the expansion sheet are arranged in a staggered mode.

Furthermore, the clamping strip comprises a first side surface and a second side surface, the first side surface and the outer wall of the expansion sheet form an obtuse included angle, and the second side surface and the outer wall of the expansion sheet form an acute included angle.

By adopting the technical scheme, the beneficial effects of the utility model are that: when the gecko was repaiied to the car and is squeezed into drilling, expansion sleeve contradicts with the inner wall of drilling, and when the screw rod was twisted, the expansion head outwards removed and made expansion sleeve expand, and then made the card strip card go into the drilling inner wall, and then increased expansion sleeve and the frictional force of drilling, even make expansion sleeve and drilling be connected more firmly.

Drawings

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

Fig. 2 is a longitudinal sectional structural view of the expansion sleeve.

Fig. 3 is a cross-sectional structural schematic view of an expansion sleeve.

Detailed Description

Embodiments of the present invention are further described with reference to fig. 1 to 3.

An expansion sleeve is a car wall gecko which can be connected with a drill hole more firmly.

The utility model discloses a concrete implementation scheme: the expansion rod comprises a rod body 1 and an expansion sleeve 2, wherein the rod body 1 is composed of a screw rod 11 and an expansion head 12 which are sequentially connected, at least three expansion pieces 21 are arranged on the expansion sleeve 2, the three expansion pieces 21 are uniformly distributed around the expansion sleeve, and a U-shaped notch 201 is formed between every two adjacent expansion pieces 21; the expansion pieces 21 are provided with clamping strips 22, and the clamping strips 22 incline towards the direction of the expansion rod; the section of the clamping strip 22 is triangular, the clamping strip 22 comprises a first side surface 22a and a second side surface 22b, the first side surface 22a and the outer wall of the expansion sheet 21 form an obtuse included angle, and the second side surface 22b and the outer wall of the expansion sheet 21 form an acute included angle.

When the car repair gecko is driven into a drilled hole, the expansion sleeve 2 is abutted against the inner wall of the drilled hole, when the screw 11 is screwed, the expansion head 12 moves outwards and expands the expansion sleeve 2, at the moment, the U-shaped notch 201 is expanded and the three expansion pieces 21 bend outwards, so that the clamping strip 22 is clamped into the inner wall of the drilled hole, the clamping strip 22 is clamped into the inner wall of the drilled hole just like a barb, the friction force between the expansion sleeve 2 and the drilled hole is greatly increased, and the expansion sleeve 2 is connected with the drilled hole more firmly; the shape of the clamping strip 22 is like a barb, when the expansion sleeve is inserted into the drill hole, the clamping strip 22 is inserted into the drill hole like an arrow, the expansion sleeve 2 is sleeved on the screw rod 11, and the outer contour diameter of the clamping strip 22 is smaller than the maximum diameter of the expansion head 12, so that the clamping strip 22 is not easy to rub against the drill hole and damage the inner wall of the drill hole, and the expansion sleeve 2 is ensured to be connected with the inner wall of the drill hole more firmly when expanded; at least three expansion sheets 21 are arranged, so that the stable connection between the expansion sleeve 2 and the drilled hole is ensured, and the expansion sleeve is not easily stressed and damaged;

a plurality of clamping strips 22 on the expansion sheet 21 are arranged, the plurality of clamping strips 22 are uniformly distributed on the axis of the expansion sleeve 2, and the plurality of clamping strips 22 on the expansion sheet 21 are distributed in a staggered manner; the clamping strips 22 on two adjacent expansion sheets 21 are arranged in a staggered mode.

A plurality of even arranging of card strip 22 is on expansion sheet 21 of expansion sleeve 2, when expansion sleeve contradicts in the inner wall of drilling, the even card of a plurality of card strips 22 distribution goes into the inner wall of drilling to make a plurality of card strips 22 stagger each other, the position when card strip 22 inserts the drilling inner wall is difficult for being close to each other and the inner wall with drilling damages, ensures that card strip 22 is connected more firmly with drilling, then increases the fastness that expansion sleeve 2 and drilling are connected.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and the skilled in the art can carry out the common changes and replacements within the technical solution of the present invention.

Claims

1. A gecko for car repair comprises a rod body and an expansion sleeve, wherein the rod body is composed of a screw rod and an expansion head which are sequentially connected;

the expansion pieces are provided with clamping strips, and the clamping strips incline towards the direction of the expansion rod;

the clamping strips on the two adjacent expansion sheets are arranged in a staggered mode.

2. A gecko according to claim 1, wherein: the section of the clamping strip is triangular.

3. A gecko according to claim 2, wherein: the expansion sheet is provided with a plurality of clamping strips which are uniformly distributed on the axis of the expansion sleeve.

4. A gecko according to claim 3, wherein: and the plurality of clamping strips on the expansion sheet are arranged in a staggered manner.

5. A gecko according to claim 4, wherein: the clamping strip comprises a first side surface and a second side surface, the first side surface and the outer wall of the expansion sheet form an obtuse angle included angle, and the second side surface and the outer wall of the expansion sheet form an acute angle included angle.