CN104563109A

CN104563109A - Improved sleeve type inner anchor head

Info

Publication number: CN104563109A
Application number: CN201510045611.2A
Authority: CN
Inventors: 周剑波; 陈幼康; 高作平; 陈明祥; 张畅
Original assignee: WUDA JUCHENG STRUCTURE Co Ltd
Current assignee: WUDA JUCHENG STRUCTURE Co Ltd
Priority date: 2015-01-29
Filing date: 2015-01-29
Publication date: 2015-04-29

Abstract

The invention discloses an improved sleeve type inner anchor head which comprises an anchor rod, a sleeve and a cone frustum wedge. The sleeve is of a hollow structure, openings are formed in two ends of the hollow structure, the inner wall of an upper end of the sleeve is matched with the outer wall of the anchor rod, the inner wall of a lower end of the sleeve is matched with the outer wall of the upper end of the cone frustum wedge, the upper end of the sleeve is fixedly connected with the anchor rod, and a plurality of cut grooves are circumferentially formed in the lower end of the sleeve. The improved sleeve type inner anchor head has the advantages of safety, reliability, good durability and wide application range.

Description

The telescopic Inner bolt head of a kind of modified

Technical field

The present invention relates to ground anchorage field, particularly relate to the telescopic Inner bolt head of a kind of modified, be specifically applicable to provide mechanical anchoring force on the basis of script chemical grouting anchored force.

Background technology

Developing rapidly of ground anchorage is closely related with Anchorage Technology progress, in recent years, China's Anchorage Technology obtains and develops fast, particularly apply very wide in civilian construction basement anti-floating engineering, but the anchorage style of traditional conventional common bolt be rely on grouting material solidification after shear strength and adhesion stress to provide anchored force, because grouting material exists problem of aging, grouting body in order to ensure anchoring section has enough anchored force, often needs anchor pole to anchor into the degree of depth larger in rock or concrete.

Summary of the invention

The object of the invention is to overcome the problem that the anchored force that exists in prior art is single, not ageing-resistant, provide a kind of and utilize the mechanical snap power at the bottom of hole to carry out anchoring, the telescopic Inner bolt head of safe and reliable modified.

For realizing above object, technical scheme of the present invention is as follows:

The telescopic Inner bolt head of a kind of modified, this Inner bolt head comprises anchor pole, sleeve, frustum of a cone wedge head, described sleeve is the hollow structure of both ends open, the inwall of its upper end matches with the outer wall of anchor pole, the inwall of the lower end of sleeve matches with the outer wall of frustum of a cone wedge head upper end, and upper end is fixedly connected with anchor pole, its border of lower end edge offers multiple joint-cutting.

Described upper end is welded with anchor pole.

Compared with prior art, beneficial effect of the present invention is:

1, the telescopic Inner bolt head of a kind of modified of the present invention comprises anchor pole, sleeve, frustum of a cone wedge head, side and the anchor pole of the nearly outer wall in bottom of voussoir are hinged, the inwall of sleeve upper end matches with the outer wall of anchor pole, the inwall of sleeve lower end matches with the outer wall of frustum of a cone wedge head upper end, and upper end is fixedly connected with anchor pole, its border of lower end edge offers multiple joint-cutting, during use, lower end is equipped with in the anchor pole patchhole of frustum of a cone wedge head and sleeve, by to anchor pole axial pressure, make sleeve under the guide effect of the male cone (strobilus masculinus) of frustum of a cone wedge head along joint-cutting distending, the conical surface forming lower large little conehead face and foot of hole is adjacent to, the mechanical snap power of foot of hole is utilized to carry out anchoring, this kind of anchored force solidify with inorganic bond pouring material after adhesion stress combine, define a kind of safe and reliable, the anchorage style of good endurance, the drilling depth of anchor pole can not only be reduced, be applicable to high temperature, the environment of high humility, and only need directly to pressurize to the body of rod when using, without the need to additionally using outlet sleeve, simultaneously, also can very according to needing the manufactured materials selecting sleeve, the scope of application is wider.Therefore, the present invention is safe and reliable, good endurance not only, and the scope of application is wider.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

Fig. 2 is scheme of installation of the present invention.

In figure: anchor pole 1, sleeve 2, upper end 21, lower end 22, joint-cutting 23, frustum of a cone wedge head 3, male cone (strobilus masculinus) 31, conehead face 4.

Detailed description of the invention

Illustrate that the present invention is further detailed explanation with detailed description of the invention below in conjunction with accompanying drawing.

See Fig. 1, Fig. 2, the telescopic Inner bolt head of a kind of modified, this Inner bolt head comprises anchor pole 1, sleeve 2, frustum of a cone wedge head 3, described sleeve 2 is the hollow structure of both ends open, the inwall of its upper end 21 matches with the outer wall of anchor pole 1, the inwall of the lower end 22 of sleeve 2 matches with the outer wall of frustum of a cone wedge head 3 upper end, and upper end 21 is fixedly connected with anchor pole 1, and lower end 22 offers multiple joint-cutting 23 along its border.

Described upper end 21 is welded with anchor pole 1.

Embodiment 1:

See Fig. 1, Fig. 2, the telescopic Inner bolt head of a kind of modified, this Inner bolt head comprises anchor pole 1, sleeve 2, frustum of a cone wedge head 3, described sleeve 2 is the hollow structure of both ends open, the inwall of its upper end 21 matches with the outer wall of anchor pole 1, the inwall of the lower end 22 of sleeve 2 matches with the outer wall of frustum of a cone wedge head 3 upper end, and upper end 21 is welded with anchor pole 1, and lower end 22 offers multiple joint-cutting 23 along its border.

During assembling, first on rock, bore straight hole with rig, after arriving design hole depth, reaming is carried out at the boring end with reaming bit, then the anchor pole 1 lower end being equipped with frustum of a cone wedge head 3 and sleeve 2 inserts in the boring after reaming, carries out axial pressure subsequently to anchor pole 1, makes the lower end of sleeve 2 under the guide effect of the male cone (strobilus masculinus) 31 of frustum of a cone wedge head 3 along joint-cutting 23 distending, and move down gradually, form lower large little conehead face 4 and be adjacent to the conical surface of foot of hole.

Claims

1. the telescopic Inner bolt head of modified, it is characterized in that: this Inner bolt head comprises anchor pole (1), sleeve (2), frustum of a cone wedge head (3), the hollow structure that described sleeve (2) is both ends open, the inwall of its upper end (21) matches with the outer wall of anchor pole (1), the inwall of the lower end (22) of sleeve (2) matches with the outer wall of frustum of a cone wedge head (3) upper end, and upper end (21) are fixedly connected with anchor pole (1), lower end (22) offer multiple joint-cutting (23) along its border.

2. the telescopic Inner bolt head of a kind of modified according to claim 1, is characterized in that: described upper end (21) weld with anchor pole (1).