CN217870460U

CN217870460U - Expansion shell anchor head with anti-rotation structure

Info

Publication number: CN217870460U
Application number: CN202222273926.0U
Authority: CN
Inventors: 闫苏雅
Original assignee: Hebei Kunshanyu Technology Co ltd
Current assignee: Hebei Kunshanyu Technology Co ltd
Priority date: 2022-08-29
Filing date: 2022-08-29
Publication date: 2022-11-22
Anticipated expiration: 2032-08-29

Abstract

The utility model discloses a shell anchor head rises with prevent changeing structure, set up in the card lamella of anchor head main part both sides including anchor head main part and symmetry, card lamella and anchor head main part realize the cooperation through domatic structure, and anchor head main part top is provided with stock installation screw hole, the bottom of anchor head main part is provided with the grafting structure, and the grafting structure is used for inserting the bottom in anchor rod hole so that form circumference limit structure, grafting structure and anchor head main part integrated into one piece between anchor head main part and the anchor rod hole. The utility model discloses increased grafting structure in the bottom of current anchor head main part, through pricking grafting structure to the anchor hole, can be so that form fine commentaries on classics effect of preventing between anchor head main part and the anchor hole, and then can make the relative anchor head main part of stock rotate, be convenient for accomplish opening of card lamella and move, great improvement the efficiency of construction and the success rate of the first installation of shell anchor that rises.

Description

Expansion shell anchor head with anti-rotation structure

Technical Field

The utility model relates to a tunnel rock mass struts technical field, especially relates to a shell anchor head rises with prevent changeing structure.

Background

In the process of construction under geological conditions such as surrounding rocks and the like, in order to prevent collapse of rocks or soil, supporting construction needs to be carried out, and the shell-expanding anchor head is a common mechanical anchor point tool and can play a good role in temporary support, and a stable anchoring effect is achieved after the shell-expanding anchor head is installed and grouted.

In the above structure, at the initial stage of the rotation of the anchor rod 1-4, since the sliding flaps 1-2 are not in contact with the anchor rod hole 1-3, in order to achieve the anti-rotation effect on the anchor head body 1-1, an axial force needs to be applied to the anchor rod 1-4 through the anchor rod 1-4, so that a certain friction force is generated between the end of the anchor head body 1-1 and the bottom end of the anchor rod hole 1-3, and further, the anchor rod 1-4 and the anchor head body 1-1 are rotated relatively, so as to complete the subsequent installation work, but for some smooth anchor rod holes 1-3, because the end of the anchor head body 1-1 is also in a planar structure, even if a large axial force is applied, also difficult to make and produce sufficient frictional force between the bottom of anchor rod hole 1-3 and anchor head body 1-1, like this, can lead to anchor head body 1-1 to rotate along with stock 1-4, can't accomplish the action of opening of sliding vane 1-2, bring very big difficulty for the construction, based on this problem, utility model patent specification with publication number "CN209354180U" discloses a translation prevents changeing reverse wedge tensioning formula prestressed anchorage pole, it plays the rotation-proof effect of anchor head body through being provided with a rotation-proof subassembly between the tip of anchor head body and anchor rod hole, nevertheless this kind of structure has certain not enough: 1. the anti-rotation component consists of an anti-rotation jacking block, two anti-rotation blocks and a plurality of parts, so that the structural cost is greatly improved; 2. in the operation process, loose conditions are easy to occur between the anti-rotation component and the anchor head body, the installation effect is influenced, even the situation of installation failure occurs, the component needs to be taken out and then operated again, and the construction efficiency is invisibly reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to avoid prior art's weak point, provide a shell anchor head that rises with prevent changeing the structure to effectively solve the weak point that exists among the prior art.

In order to achieve the above purpose, the utility model adopts the technical proposal that: the utility model provides a shell anchor head rises with prevent changeing structure, includes that anchor head main part and symmetry set up in the card lamella of anchor head main part both sides, and the cooperation is realized through domatic structure to card lamella and anchor head main part, and anchor head main part top is provided with stock installation screw hole, the bottom of anchor head main part is provided with the grafting structure, and the grafting structure is used for inserting the bottom in anchor rod hole so that form circumference limit structure, grafting structure and anchor head main part integrated into one piece between anchor head main part and the anchor rod hole.

Furthermore, the inserting structure comprises two inserting pieces which are symmetrically arranged.

Furthermore, the edge of the inserting sheet is of a narrow structure.

Furthermore, the inserting sheet is of a structure with a thick upper part and a thin lower part.

Further, the inserted sheet is enclosed by the cambered surface that is located the outside and the domatic that is located the inboard and closes and form, and the position of combination between cambered surface and the domatic forms narrow column structure.

Furthermore, the narrow structure is an arc transition structure, and the radius of the arc is 0.3-1mm.

Furthermore, the bottom of anchor head main part is provided with thick-end-up's round platform structure, grafting structure is located the bottom plane of round platform structure.

Furthermore, the upside of round platform structure is provided with the slip casting hole that the level is link up, and the surface of anchor head main part uses the middle part to be provided with the slip casting groove as the starting point downwardly extending, and the slip casting groove link up the top setting of slip casting hole and round platform structure.

Furthermore, the bottom of anchor head main part is provided with detains the cap, detains the bottom of cap and is provided with two at least spine structures, detain the cap the top with form the block structure between the anchor head main part.

Furthermore, the top of the buckle cap is provided with a limit groove in a matching and inserting mode.

The above technical scheme of the utility model following beneficial effect has:

1. the utility model discloses increased the grafting structure in the bottom of current anchor head main part, through piercing the grafting structure in the anchor hole, can make and form fine anti-rotation effect between anchor head main part and the anchor hole, and then can make the stock rotate relative to the anchor head main part, be convenient for accomplish the action of opening of card lamella, great improvement the efficiency of construction and the success rate of rising shell anchor head installation;

2. the splicing structure and the anchor head main body in the utility model are integrally cast and formed, the structure not only has high integral strength, but also can be formed in the process of manufacturing the anchor head main body, and the splicing structure can be manufactured almost without increasing the material cost due to smaller size, so the structure has strong economic benefit; and for the casting mould, directly process out corresponding cell body structure on the mould can, reform transform with low costsly, the practicality is strong.

Drawings

FIG. 1 is a schematic view of a prior art anchor head with an expanding shell;

FIG. 2 is a schematic perspective view of an embodiment of the present invention;

fig. 3 is a schematic structural view of a bottom end of an embodiment of the present invention;

fig. 4 is an exploded view of the embodiment of the present invention;

FIG. 5 is another perspective view of FIG. 4;

fig. 6 is a schematic structural view of a second embodiment of the present invention;

fig. 7 is another perspective view of fig. 6.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

As shown in fig. 2-5, the expanding anchor head with anti-rotation structure according to this embodiment includes an anchor head main body 1 and clamp flaps 2 symmetrically disposed on two sides of the anchor head main body 1, the clamp flaps 2 and the anchor head main body 1 are matched through a slope structure, a bolt mounting threaded hole 101 is disposed on the top of the anchor head main body 1, after the anchor rod is installed in the bolt mounting threaded hole 101, the anchor rod is screwed, so that the bottom end of the anchor rod can move downward and outward against two clamp flaps 2 at the same time, and further a tight clamping effect can be achieved with the anchor rod hole, wherein in order to achieve a better guiding sliding effect between the clamp flaps 2 and the anchor head main body 1, a T-shaped slider 201 can be disposed on the inner side of the clamp flaps 2, a corresponding T-shaped slider 201 disposed on the anchor head main body 1 is provided with a T-shaped chute 106, wherein the T-shaped chute 106 and the T-shaped slider 201 are in clearance fit, not only smoothness of actions between the two can be improved, but also grout poured into the anchor head main body can be filled between the two, and thereby achieving a better fastening effect, the above structure is improved as follows:

the bottom of anchor head main part 1 is provided with grafting structure, grafting structure is used for inserting the bottom in anchor rod hole so that form circumference limit structure between anchor head main part 1 and the anchor rod hole, through setting up grafting structure, can be between rotatory stock, give one of them axial force, make grafting structure alternate certain degree of depth in the anchor hole, when carrying out the stock rotation again like this, only need give rather than a less axial force, can make and form reliable circumference limit effect between anchor head main part 1 and the anchor hole, and then can make anchor rod relative anchor head main part 1 rotate, be convenient for accomplish the action of opening of card lamella 2, great improvement the efficiency of construction and the success rate of the installation of the anchor head of the shell that rises.

Grafting structure and anchor head main part 1 are integrated casting shaping's structure, and this kind of structure not only bulk strength is high, and the in-process of anchor head main part 1 preparation has just been moulded by the way in addition to required material is very little, can make under the prerequisite that does not increase material cost almost, and to the casting mould, directly process out corresponding cell body structure on the mould can, reform transform with low costsly, the practicality is strong.

The inserting structure comprises two symmetrically-arranged inserting pieces 102, the edge of each inserting piece 102 is of a narrow structure 1021, the inserting pieces 102 can be conveniently inserted into the anchoring holes, and preferably, the inserting pieces 102 are of a structure which is thick at the top and thin at the bottom, so that the whole structure of the inserting pieces 102 can be guaranteed, the flowing filling effect of molten iron is better in the process of casting forming, and the casting defects of the inserting structure can be avoided.

The insertion sheet 102 is enclosed by a cambered surface 1022 located on the outer side and a sloping surface 1023 located on the inner side, and a narrow structure 1021 is formed at the joint position between the cambered surface 1022 and the sloping surface 1023.

Narrow column structure 1021 is circular arc transition structure, and its circular arc radius is 0.3-1mm, and is preferred, and the circular arc radius adopts 0.5mm, sets up to the circular-arc that the radius is less through with narrow column structure 1021, under most operating modes, not only can satisfy the grafting needs, can not influence the normal insertion effect of grafting structure to can avoid the closed angle structure to produce the condition of stabbing to the staff, improve factor of safety.

The bottom of anchor head main part 1 is provided with thick round platform structure 103 thin from top to bottom, and grafting structure is located the bottom plane of round platform structure 103, through this kind of structure, more does benefit to the thick liquid and fills the bottom of anchor head main part 1, improves the smooth and easy nature of slip casting.

The upside of round platform structure 103 is provided with the slip casting hole 104 that the level link up, slip casting hole 104 is located between the card lamella 2 of both sides, the surface of anchor head main part 1 uses the middle part to be provided with slip casting groove 105 as the starting point downwardly extending, slip casting groove 104 link up the top setting of slip casting hole 104 and round platform structure 103, it is preferred, slip casting groove 105 symmetry sets up in the both sides of slip casting hole 104, through adopting this kind of structure, because the clearance between anchor hole and the anchor head main part 1 is less, like this, can make the thick liquid flow in the bottom of slip casting hole 104 and round platform structure 103 through slip casting groove 104 more easily, make the filling effect of thick liquid better, do benefit to the reliability that improves whole anchoring system.

As shown in fig. 6-7, in the second embodiment, the bottom of the anchor head main body 1 is provided with the buckle cap 3, the bottom of the buckle cap 3 is provided with at least two spike structures 301, a fastening structure is formed between the top of the buckle cap 3 and the anchor head main body 1, the spike structures 301 and the buckle cap 3 are integrally cast, the top of the buckle cap 3 is provided with a limit groove 302 in cooperation with the insertion structure, by adopting the structure, when the bottom wall of the anchor hole is hard, the buckle cap 3 can be additionally arranged at the bottom of the anchor head main body 1, so that the insertion can be realized by the sharper spike structures 301 and the bottom wall of the anchor hole, in practical application, the buckle cap 3 is stored separately, so as to avoid stabbing workers, only when the buckle cap 3 is needed to be installed on the anchor head main body 1, therefore, the buckle cap 3 is not required to be installed in all working conditions, and in addition, for some installation angles, the buckle cap 3 can be fixed on the anchor head main body 1 by using an adhesive, thereby providing convenience for operating the anchor head.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides a shell anchor head rises with prevent changeing structure, includes that anchor head main part and symmetry set up in the card lamella of anchor head main part both sides, and the cooperation is realized through domatic structure to card lamella and anchor head main part, and anchor head main part top is provided with stock installation screw hole, its characterized in that: the bottom of anchor head main part is provided with the grafting structure, and the grafting structure is used for inserting the bottom in anchor rod hole so that form circumference limit structure between anchor head main part and the anchor rod hole, grafting structure and anchor head main part integrated into one piece.

2. The expanding anchor head with the rotation preventing structure as claimed in claim 1, wherein: the plug-in structure comprises two symmetrically arranged plug-in sheets.

3. The expanding anchor head with the rotation preventing structure as claimed in claim 2, wherein: the edge of the inserting piece is of a narrow structure.

4. The expanding anchor head with the rotation preventing structure as claimed in claim 3, wherein: the inserting sheet is of a structure with a thick upper part and a thin lower part.

5. The anchor head with the anti-rotation structure for the expanding shell of the anchor head as claimed in claim 4, wherein: the inserted sheet is enclosed by the cambered surface that is located the outside and is located the domatic of inboard and closes and form, and the binding site between cambered surface and the domatic forms narrow column structure.

6. The expanding anchor head with the rotation preventing structure as claimed in claim 5, wherein: the narrow structure is an arc transition structure, and the arc radius is 0.3-1mm.

7. The expanding anchor head with the rotation preventing structure as claimed in claim 5, wherein: the bottom of anchor head main part is provided with thick-end-down's round platform structure, grafting structure is located the bottom plane of round platform structure.

8. The anchor head with the anti-rotation structure for the expanding shell of the anchor head as claimed in claim 7, wherein: the upper side of the circular truncated cone structure is provided with a horizontally-communicated grouting hole, the surface of the anchor head main body extends downwards by taking the middle part as a starting point to form a grouting groove, and the grouting groove is communicated with the grouting hole and the top of the circular truncated cone structure.

9. The expanding anchor head with the rotation preventing structure as claimed in claim 1, wherein: the bottom of anchor head main part is provided with detains the cap, detains the bottom of cap and is provided with two at least spine structures, detain the top of cap with form the block structure between the anchor head main part.

10. The expanding anchor head with the rotation preventing structure as claimed in claim 9, wherein: the top of the buckling cap is provided with a limiting groove in a matching and inserting mode.