CN218954529U - Support for drawing tunnel anchor rod - Google Patents

Abstract

The utility model provides a bracket for drawing a tunnel anchor rod, and belongs to the technical field of drawing experiments. The technical proposal is as follows: the utility model provides a tunnel stock draws and uses support, its characterized in that includes the base, the below bilateral symmetry of base is provided with the bottom plate, the both ends of bottom plate all stretch out the base, the bottom plate stretches out the both ends below of base is provided with the fixed leg, be provided with the direction blind hole that the opening is down on the fixed leg, peg graft in the direction blind hole and have the movable leg, the upper end of movable leg is connected with the roof of direction blind hole through the spring, on the bottom plate and be provided with the screw hole that leads blind hole intercommunication and concentric, threaded hole is provided with the screw rod through threaded connection, the lower extreme of screw rod can pass the inside top of spring is on the movable leg; and a through hole for the anchor rod to pass through is formed in the center of the base. The beneficial effects of the utility model are as follows: and carrying out a drawing test on the tunnel anchor rod.

Description

Support for drawing tunnel anchor rod

Technical Field

The utility model relates to the technical field of drawing experiments, in particular to a bracket for drawing a tunnel anchor rod.

Background

In the construction process of an energy storage power station, a tunnel needs to be dug on a mountain, and in order to ensure the stability and the safety of the tunnel, an anchor rod is generally required to be arranged on a tunnel rock body, and can limit the deformation of surrounding rock and prevent the strength of the surrounding rock from deteriorating; particularly, joint cracks and fracture surfaces in the loosening area are connected, the strength of surrounding rock of the anchoring area is increased, and the cracked rock body and the loosening area are integrated. In the construction process, in order to ensure the installation strength of the anchor rod, a pull-out test is required to be carried out on the tunnel anchor rod. In the process of carrying out the pull-out test, a backing plate is sleeved at the anchor rod, and then the anchor rod is clamped by a pulling instrument to carry out the pull-out test. Because some areas of the tunnel are cambered surfaces, uneven cushion blocks are caused, and the accuracy of equipment installation and test data is affected.

Disclosure of Invention

The utility model aims to provide a bracket for drawing a tunnel anchor rod, which can be suitable for a tunnel cambered surface.

The utility model is realized by the following technical scheme: the utility model provides a tunnel stock draws and uses support, its characterized in that includes the base, the below bilateral symmetry of base is provided with the bottom plate, the both ends of bottom plate all stretch out the base, the bottom plate stretches out the both ends below of base is provided with the fixed leg, be provided with the direction blind hole that the opening is down on the fixed leg, peg graft in the direction blind hole and have the movable leg, the upper end of movable leg is connected with the roof of direction blind hole through the spring, on the bottom plate and be provided with the screw hole that leads blind hole intercommunication and concentric, threaded hole is provided with the screw rod through threaded connection, the lower extreme of screw rod can pass the inside top of spring is on the movable leg;

and a through hole for the anchor rod to pass through is formed in the center of the base.

A supporting plate is arranged below the movable supporting leg.

And limiting blind holes matched with the screw rods are concentrically arranged on the movable supporting legs.

The upper end of the screw rod is fixedly provided with a mounting ring, the mounting ring is positioned on the outer side of the base, and the mounting ring can conveniently screw the screw rod by using a tool.

The novel side plate comprises a top plate and a side plate arranged on the periphery of the top plate, wherein the bottom plate is arranged below the side plate, and annular rib plates are arranged on the inner wall of the side plate.

And a reinforcing rib plate is arranged at the joint of the side plate and the bottom plate.

The base is provided with bosses on two sides of the through hole, and sliding grooves matched with the drawing equipment are formed in the bosses.

The side wall of the fixed supporting leg is provided with a jackscrew through threaded connection.

The beneficial effects of the utility model are as follows: when the screw rod is not propped against the movable supporting leg, the movable supporting leg pressing spring can realize the adjustment of a single leg, and after the adjustment is finished, the screw rod can be rotated to realize the fixation of the movable supporting leg, so that the screw rod is applicable to the cambered surface of a tunnel, the movable supporting leg is adjusted, and the surface of the base is kept flat; if the screw rod is used on a plane, the screw rod is unscrewed, the movable supporting legs can be reset under the action of the springs, the movable supporting legs are fixed by pushing the jackscrews tightly, the screw rod is pushed on the movable supporting legs, and the extension lengths of all the movable supporting legs are ensured to be consistent as much as possible.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the internal structure of the fixed leg;

FIG. 3 is a schematic view of a part of the structure;

FIG. 4 is a usage state reference diagram;

wherein, the reference numerals are as follows: 1. a base; 2. a bottom plate; 3. a fixed support leg; 4. a movable support leg; 5. a spring; 6. a screw; 7. drawing equipment; 8. reinforcing rib plates; 9. a jackscrew; 101. a top plate; 102. a side plate; 103. a boss; 104. a chute; 105. an annular rib; 301. a guide blind hole; 401. a support plate; 601. and (5) a mounting ring.

Detailed Description

In order to clearly illustrate the technical characteristics of the scheme, the scheme is explained below through a specific embodiment.

Referring to fig. 1-4, the utility model relates to a bracket for drawing a tunnel anchor rod, which comprises a base 1, wherein bottom plates 2 are symmetrically arranged on two sides below the base 1, two ends of the bottom plates 2 extend out of the base 1, fixed support legs 3 are arranged below two ends of the bottom plates 2 extending out of the base 1, guide blind holes 301 with downward openings are arranged on the fixed support legs 3, movable support legs 4 are inserted into the guide blind holes 301, the upper ends of the movable support legs 4 are connected with the top wall of the guide blind holes 301 through springs 5, threaded holes which are communicated with the guide blind holes 301 and concentric with each other are arranged on the bottom plates 2, screw rods 6 are arranged in the threaded holes through threaded connection, and the lower ends of the screw rods 6 can penetrate through the interiors of the springs 5 and prop up on the movable support legs 4;

the central position of the base 1 is provided with a through hole through which the anchor rod passes.

A support plate 401 is provided below the movable leg 4.

The movable supporting leg 4 is concentrically provided with a limiting blind hole matched with the screw rod 6.

The upper end of the screw rod 6 is fixedly provided with a mounting ring 601, the mounting ring 601 is positioned on the outer side of the base 1, and the mounting ring 601 can be used for conveniently screwing the screw rod 6 by using a tool.

Comprising a top plate 101 and a side plate 102 arranged on the periphery of the top plate 101, wherein the bottom plate 2 is arranged below the side plate 102, and an annular rib 105 plate is arranged on the inner wall of the side plate 102.

The connection of the side plates 102 and the bottom plate 2 is provided with reinforcing ribs 8.

The base 1 is provided with bosses 103 on two sides of the through hole, and the bosses 103 are provided with sliding grooves 104 matched with the drawing equipment 7.

The side wall of the fixed supporting leg 3 is provided with a jackscrew 9 through threaded connection.

Working principle: when the screw rod 6 is not propped against the movable supporting leg 4, the movable supporting leg 4 presses the spring 5 to realize the adjustment of a single leg, and after the adjustment is finished, the screw rod 6 can be rotated to realize the fixation of the movable supporting leg 4, so that the screw rod is applicable to the cambered surface of a tunnel to adjust the movable supporting leg 4 and keep the surface of the base 1 smooth; if the movable supporting leg is used on a plane, the screw rod 6 is unscrewed, the movable supporting leg 4 can be reset under the action of the spring 5, the movable supporting leg 4 is fixed by tightly pushing the jackscrew 9, the screw rod 6 is pushed onto the movable supporting leg 4, and the extension length of all the movable supporting legs 4 is ensured to be consistent as much as possible.

In the description of the utility model, it should be understood that the terms "center," "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships that are based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the utility model and simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operate in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "configured" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, may be a communication between the interiors of the two elements. The specific meaning of the above terms in the creation of the present utility model can be understood by those of ordinary skill in the art in a specific case.

The technical features of the present utility model which are not described in the present utility model may be realized by or are adopted in the prior art, and are not described in detail herein, however, the above description is not intended to limit the present utility model, nor is the present utility model limited to the above examples, variations, modifications, additions, or substitutions within the spirit and scope of the utility model will occur to those of ordinary skill in the art and are also within the scope of the utility model.

Claims (8)

1. The utility model provides a tunnel stock draws and uses support, its characterized in that includes the base, the below bilateral symmetry of base is provided with the bottom plate, the both ends of bottom plate all stretch out the base, the bottom plate stretches out the both ends below of base is provided with the fixed leg, be provided with the direction blind hole that the opening is down on the fixed leg, peg graft in the direction blind hole and have the movable leg, the upper end of movable leg is connected with the roof of direction blind hole through the spring, on the bottom plate and be provided with the screw hole that leads blind hole intercommunication and concentric, threaded hole is provided with the screw rod through threaded connection, the lower extreme of screw rod can pass the inside top of spring is on the movable leg;

and a through hole for the anchor rod to pass through is formed in the center of the base.

2. A tunnel bolt pulling bracket according to claim 1, wherein a support plate is provided below the movable leg.

3. A tunnel anchor rod drawing bracket according to claim 1, wherein the movable support leg is concentrically provided with a limiting blind hole matched with the screw rod.

4. A tunnel bolt drawing bracket according to claim 1, wherein a mounting ring is fixedly provided at the upper end of the screw, the mounting ring being located outside the base.

5. A tunnel bolt drawing bracket according to claim 1, comprising a top plate and a side plate arranged on the periphery of the top plate, wherein the bottom plate is arranged below the side plate, and annular rib plates are arranged on the inner walls of the side plate.

6. A tunnel bolt drawing bracket according to claim 5, wherein the junction of the side and bottom plates is provided with reinforcing ribs.

7. A tunnel bolt drawing support according to claim 5, wherein bosses are provided on the base on both sides of the through hole, and a chute matched with the drawing device is provided on the bosses.

8. A tunnel bolt pulling bracket according to claim 5, wherein the side walls of the fixed legs are provided with jackscrews by threaded connection.

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