Rotation locking anchor rod structure for cavern

Abstract

The anchor rod structure comprises a fixing cylinder and an anchor rod body, the left end of the fixing cylinder is a closed end, the right end of the fixing cylinder is an open end, a fastening nut is fixed to the middle of the interior of the fixing cylinder, a sliding block is arranged in the portion, on the left side of the fastening nut, of the interior of the fixing cylinder, and a plurality of metal sheets are arranged between the sliding block and the closed end. The side wall of the closed end is provided with open holes in one-to-one correspondence with the metal sheets, slotting seams are evenly distributed in the open end in the circumferential direction, the anchor rod body is provided with a countersunk head block, the countersunk head block is arranged at the open end, and the left end of the anchor rod body penetrates through the fastening nut in a threaded mode and abuts against the sliding block. The anchor rod body is matched with the fastening nut, and the countersunk block enables the right end of the fixing cylinder to be opened and abut against the inner wall of a drill hole; the sliding block moves towards the closed end, the metal sheet is bent outwards to abut against the inner wall of the drill hole, and double-position anchoring is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of anchor rod, especially a kind of anchor rod structure for the rotation locking of cavern. BACKGROUND

[0002] After cavern or high slope drilling, washing, anchor rod device is inserted into borehole, the end of fixed cylinder is expanded by rotating anchor rod body, so that it is supported on the inner wall of borehole, anchoring is realized, then grouting is carried out, and the reinforcement support of cavern or high slope is used.And the existing anchor rod device, the unit position expansion anchoring of fixed cylinder is more, and the anchoring stability is limited, prone to looseness, which affects the effect of reinforcement support. SUMMARY

[0003] The utility model provides a kind of anchor rod structure for the rotation locking of cavern, the right end of fixed cylinder is opened and supported on the inner wall of borehole by the cooperation of anchor rod body and lock nut;Sliding block moves towards closed end, metal sheet is bent outwards and supported on the inner wall of borehole, to realize double-position anchoring.

[0004] The technical scheme of the utility model is as follows: a kind of anchor rod structure for the rotation locking of cavern, including fixed cylinder and anchor rod body, the left end of fixed cylinder is closed end, and the right end is open end, lock nut is fixed in the middle of fixed cylinder, sliding block is arranged in the fixed cylinder left side of lock nut, a plurality of metal sheets are arranged between sliding block and closed end, opening hole corresponding to metal sheet is arranged on the side wall of closed end, and slotted joint is uniformly distributed on the circumference of open end, sink block is arranged on anchor rod body, and sink block is placed in open end, the left end of anchor rod body is screwed through lock nut, and the left end is abutted with sliding block.

[0005] Further, the metal sheet is V-shaped sheet, the bending portion of V-shaped sheet faces outward, and is placed in the opening hole, the left end of metal sheet is fixedly connected with closed end, and the right end is fixedly connected with sliding block.

[0006] Further, support spring is arranged between sliding block and lock nut, and support spring supports lock nut and plays a buffering role.

[0007] Further, the right side of lock nut is connected with lock block, and the lock block is fixedly connected with the inner wall of fixed cylinder.

[0008] Further, sink block is slidably sleeved on anchor rod body, the right end of sink block is abutted with push block, and the push block is fixedly connected with anchor rod body.

[0009] Further, fixed block is fixed on the left side of closed end, and the left end of fixed block is arc-shaped end.

[0010] The utility model has the advantages that:

[0011] The utility model discloses a cooperation of anchor rod body and lock nut, rotates anchor rod body, and anchor rod body moves left to drive the sunken head block to move left, and the right end of fixed cylinder is opened and is supported on the inner wall of borehole, and simultaneously anchor rod body moves left, and the sliding block is moved to the closed end, and the metal sheet is bent outward and passes through the open hole, and is supported on the inner wall of borehole, realizes double position anchoring. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment or prior art description, and obviously, the drawing in the following description is only some embodiments of the utility model, and for ordinary skilled person in the art, other drawings can also be obtained according to these drawings without creative labor.

[0013] Fig. 1 It is the structural schematic diagram of the utility model;

[0014] Fig. 2 It is the internal structure schematic diagram of the utility model.

[0015] Fixed cylinder 1, anchor rod body 2, closed end 3, fixed block 4, lock nut 5, lock block 6, sliding block 7, support spring 8, metal sheet 9, open hole 10, slotted gap 11, sunken head block 12, push block 13. DETAILED DESCRIPTION

[0016] The technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model, and obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by ordinary skilled person in the art without creative labor belong to the protection scope of the utility model.

[0017] As Figs. 1-2 The utility model discloses a kind of anchor rod structures for the rotation locking of cavern, including fixed cylinder 1 and anchor rod body 2, the left end of fixed cylinder 1 is closed end 3, fixed block 4 is fixed in the left side of closed end 3, the left end of fixed block 4 is arc-shaped end, by the setting of arc-shaped end, it is convenient to insert fixed block 4 into the bottom of borehole.

[0018] The middle part of the fixed cylinder 1 is fixed with a locking nut 5, the right side of the locking nut 5 is connected with a locking block 6, the locking block 6 is fixedly connected with the inner wall of the fixed cylinder 1, through the arrangement of the locking block 6, the stability of the locking nut 5 is ensured. The left side of the locking nut 5 is provided with a sliding block 7 which slides axially in the fixed cylinder 1, the sliding block 7 and the locking nut 5 are provided with a supporting spring 8, the sliding block 7 and the closed end 3 are provided with a plurality of metal sheets 9, the plurality of metal sheets 9 are arranged in the circumferential direction, for example, four metal sheets, the left end of the metal sheet 9 is fixedly connected with the closed end 3, the right end is fixedly connected with the sliding block 7, the side wall of the closed end 3 is provided with an open hole 10 corresponding to the metal sheet 9, the metal sheet 9 is a V-shaped sheet, the bending part of the V-shaped sheet faces outward and is arranged in the open hole 10.

[0019] The right end of the fixed cylinder 1 is an open end, the open end is uniformly provided with a slotted gap 11 in the circumferential direction, the anchor rod body 2 is provided with a countersunk block 12, the countersunk block 12 is slidably sleeved on the anchor rod body 2, the right end of the countersunk block 12 abuts against a push block 13, the push block 13 is fixedly connected with the anchor rod body 2, the countersunk block 12 is arranged in the open end, the left end of the anchor rod body 2 is screwed through the locking nut 5 and abuts against the sliding block 7.

[0020] The use method of the anchor rod structure is as follows: the fixed block 4 is inserted into the bottom of the drill hole, the anchor rod body 2 is rotated, the anchor rod body 2 moves to the left, the countersunk block 12 on the left side of the push block 13 is driven to move to the left, so that the slotted gap 11 of the open end is expanded and abuts against the hole wall of the drill hole, at the same time, the anchor rod body 2 moves to the left and drives the sliding block 7 to move to the left, the sliding block 7 drives the metal sheet 9 to bend, the bending part of the metal sheet 9 abuts against the hole wall of the drill hole through the open hole 10, two parts are anchored, and the stability of the anchoring is improved.

[0021] The above only describes the preferred embodiment of the utility model, and does not limit the utility model, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A rotary-locked anchor rod structure for a chamber, comprising a fixed cylinder and an anchor rod body, the left end of the fixed cylinder being a closed end and the right end being an open end, characterized in that: The middle part of the fixed cylinder is fixed with a tight nut, the fixed cylinder on the left side of the tight nut is provided with a sliding block, a plurality of metal sheets are arranged between the sliding block and the closed end, the sidewall of the closed end is provided with a plurality of open holes corresponding to the metal sheets, the open end is uniformly distributed with a slotted gap in the circumferential direction, the anchor rod body is provided with a countersunk block, the countersunk block is arranged in the open end, the left end of the anchor rod body is screwed through the tight nut and abuts against the sliding block.

2. A rotationally locked anchor rod structure for a chamber according to claim 1, characterized in that: The metal sheet is a V-shaped sheet, the bending part of the V-shaped sheet faces outward and is arranged in the open hole, the left end of the metal sheet is fixedly connected with the closed end, and the right end is fixedly connected with the sliding block.

3. A rotationally locked anchor rod structure for a chamber according to claim 1 or 2, characterized in that: A supporting spring is arranged between the sliding block and the tight nut.

4. A rotationally locked anchor rod structure for a chamber according to claim 1, characterized in that: The right side of the tight nut is connected with a tight block, and the tight block is fixedly connected with the inner wall of the fixed cylinder.

5. A rotationally locked anchor rod structure for a chamber according to claim 1, characterized in that: The countersunk block is slidably sleeved on the anchor rod body, the right end of the countersunk block abuts against a push block, and the push block is fixedly connected with the anchor rod body.

6. A rotationally locked anchor rod structure for a chamber according to claim 1, characterized in that: The left side of the closed end is fixedly connected with a fixed block, and the left end of the fixed block is an arc-shaped end.

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