CN217107748U

CN217107748U - Expansion bolt sleeve and expansion bolt

Info

Publication number: CN217107748U
Application number: CN202220742137.4U
Authority: CN
Inventors: 赵玮玮; 贺洋洋; 赵益航
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-01
Filing date: 2022-04-01
Publication date: 2022-08-02
Anticipated expiration: 2032-04-01

Abstract

The utility model discloses an expansion bolts sleeve and expansion bolts, including expansion bolts sleeve and expansion bolts bucket the opening part of expansion bolts sleeve and expansion bolts bucket can be dismantled and ann has the guide housing, and rotatable ann has expansion bolts sleeve and expansion bolts lid on expansion bolts sleeve and expansion bolts bucket, is equipped with scalable clamp plate at expansion bolts sleeve and expansion bolts lid downside, works as expansion bolts sleeve and expansion bolts lid close when on the guide housing, scalable clamp plate can stretch out to expansion bolts sleeve and expansion bolts bucket are internal. The structure has increased expansion force, is strong in connection stability, can also prevent the phenomenon of follow rotation after the installation of the expansion bolt sleeve, and is simple and compact in structure and strong in practicability.

Description

Expansion bolt sleeve and expansion bolt

Technical Field

The utility model relates to an engineering installation technical field, concretely relates to expansion bolts sleeve and expansion bolts.

Background

The expansion bolt is mainly used for fixing objects on the wall surface of a building, and generally comprises a screw rod cylinder, an expansion head, an expansion sleeve, a nut, a washer, a gasket and other parts. Fastening expansion bolts on the existing market mainly divide into split type and half connected type, and both types are all connected bolt and expansion sleeve front end and make the expansion sleeve middle part expand, realize fixed connection, but the bolt after connecting is hardly demolishd, uses dumped expansion bolts often to stick out the wall, has the potential safety hazard, and smooth expansion sleeve takes place to follow the commentaries on classics phenomenon very easily, causes to connect insecurely.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an expansion bolts sleeve and expansion bolts, this structure have the bulging force that increases, and connection stability is strong, can also prevent the phenomenon of expansion bolts sleeve installation back heel-turn, and simple structure is compact, and the practicality is strong.

In order to achieve the purpose, the utility model adopts the following technical proposal:

an expansion bolt sleeve comprises a mounting sleeve and a bulge arranged on the outer surface of the mounting sleeve, wherein a mounting flange is arranged at one end of the mounting sleeve, and a plurality of slits are formed in the mounting sleeve and at one end, far away from the mounting flange, of the mounting sleeve; the bulges are barbs, and a group of barbs are arranged between two adjacent slots; and one end of the mounting sleeve, which is close to the mounting flange, is provided with a threaded hole, one end of the mounting sleeve, which is far away from the mounting flange, is provided with an expansion hole, and the threaded hole is communicated with the expansion hole.

Preferably, the number of the slots is four, and the four slots are arranged on the outer surface of the mounting sleeve at equal intervals in the circumferential direction.

Preferably, the number of the barbs in each group is two, three, four, five, six, seven, eight or nine, and the interval between two adjacent barbs in each group is the same.

Preferably, the barb is triangle-shaped sheet structure, and the barb slope is established install on the cover surface.

Preferably, the barb inclination angle is less than 45 °.

Preferably, the diameter of the expansion hole is smaller than the inner diameter of the threaded hole, and the expansion hole is in transition connection with the threaded hole through a conical surface.

Preferably, the depth of the expansion hole is greater than the length of the slit.

The utility model provides an expansion bolt, includes screw rod and expansion bolt sleeve, the screw rod includes the screw rod main part and establishes screw rod main part one end is served the regulation head, is equipped with the taper expansion head at the other end of screw rod main part, the screw rod main part with screw hole threaded connection, the taper expansion head compresses tightly and pushes up in the expansion hole.

The utility model discloses in, the expansion bolts sleeve that sets up adopts the individual structure, and overall structure adopts 3D to print technical completion, simple structure is compact, reasonable in design. The triangle-shaped barb structure that sets up is very easy when using with the mounting hole joint on the wall body, has increased the stability of connecting, and the barb structure that the slope set up can also prevent that expansion bolts from screwing up the phenomenon that in-process expansion bolts sleeve takes place to follow the commentaries on classics, and overall structure connects stably well. The expansion bolts are detachably arranged on the expansion bolt sleeves and can be detached in a non-installation state, potential safety hazards caused by the fact that the expansion bolts protrude out of the wall are avoided, and the expansion bolts can be used repeatedly.

Drawings

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

FIG. 2 is a schematic sectional view of the sleeve structure of the expansion bolt of the present invention;

FIG. 3 is a schematic sectional view of another embodiment of the present invention;

in the figure: 1. installing a sleeve; 2. a protrusion; 3. a mounting flange; 4. slotting; 5. a threaded hole; 6. expanding the hole; 7. a screw body; 8. adjusting the head; 9. a conical expansion head.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

as shown in fig. 1, fig. 2 and fig. 3, the expansion bolt sleeve comprises a mounting sleeve 1 and a plurality of protrusions integrally arranged on the outer surface of the mounting sleeve 1, a mounting flange 3 is integrally arranged at one end of the mounting sleeve 1, the mounting flange 3 is an end positioning part of the mounting sleeve 1, and a plurality of slots 4 are formed in the side wall of one end of the mounting sleeve 1, which is far away from the mounting flange 3. In one embodiment, the slots 4 are provided in four ways, and the four slots 4 are equally spaced along the circumference of the outer surface of the mounting sleeve 1. In another embodiment, the slots 4 may be equally spaced three or five. In a preferred embodiment, the length of the slit 4 is not more than half of the length of the mounting sleeve 1, and in practical application, the length of the slit 4 is the length of the mounting sleeve 1, so that the mounting effect is better.

The arch is barb 2, and the integration sets up a set of barb 2 between two adjacent cracks 4, and in an embodiment, the quantity of barb 2 is two, three, four, five, six, seven, eight or nine in every group barb 2, and the interval is the same between two adjacent barbs 2 in every group barb 2. In one embodiment, the two barbs 2 are spaced between 6mm and 13mm apart, and the end of the mounting sleeve 1 is spaced between 10mm and 18mm from the adjacent barb 2. In a preferred embodiment, the barbs 2 are triangular plate-like structures, and the barbs 2 are obliquely arranged on the outer surface of the mounting sleeve 1. In a more preferred embodiment, the angle of inclination of the barbs 2 is less than 45, and in particular embodiments the angle of inclination of the barbs 2 is 30. Barb 2 and installation cover 1 adopt 3D printing technique integration to make.

The inner side of one end, close to the mounting flange 3, of the mounting sleeve 1 is provided with a threaded hole 5, one end, far away from the mounting flange 3, of the mounting sleeve 1 is provided with an expansion hole 6, the threaded hole 5 is communicated with the expansion hole 6, in one embodiment, the diameter of the expansion hole 6 is smaller than the inner diameter of the threaded hole 5, and the expansion hole 6 is in transition connection with the threaded hole 5 through a conical surface. In one embodiment, the depth of the expansion hole 6 is greater than the length of the slit 4, and the depth of the expansion hole 6 is 1mm to 3mm greater than the length of the slit 4.

The utility model provides an expansion bolts, includes screw rod and expansion bolts sleeve, and the screw rod includes screw rod main part 7 and the integration setting at the regulation head 8 of screw rod main part 7 one end, sets up taper expansion head 9 at the other end of screw rod main part 7, screw rod

main part

7 and 5 threaded connection of screw hole, and taper expansion head 9 compresses tightly the top in expansion hole 6. When the screw rod is used, when the screw rod main body 7 is rotated by rotating the adjusting head 8, the conical expansion head 9 is propped in the expansion hole 6, so that one end, provided with the slit 4, of the mounting sleeve 1 is expanded, and expansion connection is realized.

In another embodiment, two or three conical expansion heads 9 are arranged at one end of the screw body 7 at intervals, and expansion parts matched with the positions, the number and the shapes of the conical expansion heads 9 are arranged in the expansion hole 6, so that the expansion degree of the mounting sleeve 1 can be improved by adopting a multi-section simultaneous expansion mode, and the connection stability is further improved.

The above embodiments are only a few descriptions of the concept and implementation of the present invention, and are not intended to limit the scope of the present invention.

Claims

1. The utility model provides an expansion bolt sleeve, includes the installation cover and establishes arch on the installation cover surface, its characterized in that: one end of the mounting sleeve is provided with a mounting flange, and a plurality of slits are formed in the mounting sleeve and one end of the mounting sleeve, which is far away from the mounting flange; the bulges are barbs, and a group of barbs are arranged between two adjacent slots; and one end of the mounting sleeve, which is close to the mounting flange, is provided with a threaded hole, one end of the mounting sleeve, which is far away from the mounting flange, is provided with an expansion hole, and the threaded hole is communicated with the expansion hole.

2. The expansion bolt bushing of claim 1 wherein: the four slots are arranged on the outer surface of the mounting sleeve at equal intervals in the circumferential direction.

3. An expansion bolt bushing according to claim 1 or 2, wherein: the number of the barbs in each group is two, three, four, five, six, seven, eight or nine, and the intervals between two adjacent barbs in each group of barbs are the same.

4. The expansion bolt bushing of claim 3 wherein: the barb is triangle-shaped lamellar structure, and the barb slope is established install on the cover surface.

5. The expansion bolt bushing of claim 4 wherein: the barb inclination angle is less than 45 °.

6. The expansion bolt bushing of claim 1 wherein: the diameter of the expansion hole is smaller than the inner diameter of the threaded hole, and the expansion hole is in transition connection with the threaded hole through a conical surface.

7. An expansion bolt bushing according to claim 1 or 6, wherein: the depth of the expansion hole is greater than the length of the slit.

8. An expansion bolt, characterized in that; the expansion bolt sleeve comprises a screw and the expansion bolt sleeve as claimed in any one of claims 1 to 7, wherein the screw comprises a screw main body and an adjusting head arranged at one end of the screw main body, a conical expansion head is arranged at the other end of the screw main body, the screw main body is in threaded connection with the threaded hole, and the conical expansion head is pressed against the expansion hole.