CN213571921U

CN213571921U - Anchor head self-locking buckle structure for prestressed anchor rod

Info

Publication number: CN213571921U
Application number: CN202022256233.1U
Authority: CN
Inventors: 石学花
Original assignee: TIANJIN SHENGWEN PRESTRESSED MACHINERY CO Ltd
Current assignee: TIANJIN SHENGWEN PRESTRESSED MACHINERY CO Ltd
Priority date: 2020-10-12
Filing date: 2020-10-12
Publication date: 2021-06-29
Anticipated expiration: 2030-10-12

Abstract

The utility model discloses an anchor head self-locking buckle structure for prestressed anchorage pole belongs to the ground tackle field, the installation comprises a pole body, the inside fixed mounting of body of rod lower extreme has the slot, the inside cartridge of slot has the inserted bar, the inside fixed mounting in inserted bar upper end has spiral shell groove A, the inside fixed mounting of the body of rod in slot upper end has spiral shell groove B, the inside screw rod that is equipped with of revolving of spiral shell groove A and spiral shell groove B, inserted bar lower extreme fixed mounting has the anchor head, the inside fixed mounting in the anchor head left and right sides has the spacing groove, the inside movable mounting of spacing groove has the stopper, the inner fixed mounting of stopper has the spring, the inside fixed mounting of spacing groove outside anchor head has the spout. Through setting up rotating-structure, embedded fixed knot structure and elastic expansion structure, improved buckle mechanism's practicality.

Description

Anchor head self-locking buckle structure for prestressed anchor rod

Technical Field

The utility model relates to an ground tackle technical field especially relates to an anchor head self-locking buckle structure for prestressed anchorage pole.

Background

The prestressed anchor rod consists of an anchor head, a rod body and a base plate, and certain pre-stress is applied to the surrounding rock through anchoring force generated by the anchor head so as to actively reinforce the surrounding rock.

Patent CN200620104356.0 discloses a prestressed anchor rod device, which is only suitable for use in a good rock formation because the shell-expanding force is formed by the friction between the shell-expanding and the hole wall, and the prestressed anchor rod is suitable for use in the anchoring section length and the free section by filling cement mortar or clear paste between the sleeve and the hole wall. The technological process includes the first isolating the free section with casing to make the anchor section and the free section with casing to be grouted, applying prestress and grouting between the free section casing and the anchor rod. The later construction process is more complicated.

The anchor rod has the following defects: 1. the anchor head and the rod body of the anchor rod are integrated, the anchor head and the rod body are very easy to damage in the using process, the whole anchor rod needs to be replaced if the anchor rod needs to be replaced, the cost is increased, the resource waste is caused, and the practicability of the anchor rod is reduced. 2. The anchor head of above-mentioned stock does not have self-locking mechanism, needs fix through outside buckle mechanism, and the condition that incomplete gomphosis can appear in outside fixed establishment leads to fixed insecure, has reduced buckle mechanism's practicality.

SUMMERY OF THE UTILITY MODEL

The utility model provides an anchor head self-locking buckle structure for prestressed anchor rod, which aims to adopt an embedded fixed structure and a rotating structure, when the original anchor head needs to be replaced, an upper side screw rod is manually rotated, threads are cut on the outer wall to be mutually meshed with threads cut on the inner walls of a thread groove A and a thread groove B, the screw rod is rotated and moved upwards in the thread groove A and the thread groove B to be taken out, the anchor head is manually pulled downwards, the anchor head is moved downwards to drive an inserted rod fixedly installed at the upper end to move downwards and separate from the slot, the anchor head can be independently disassembled, a new anchor head is replaced, the inserted rod fixedly installed at the upper end of the new anchor head is aligned with the slot to be pushed upwards, the inserted rod is moved upwards to be inserted into the slot, the thread groove A and the thread groove B are aligned, the screw rod is rotated downwards in the thread groove A and the thread groove B to the bottommost to complete the replacement of the new anchor head, the whole anchor rod does not need to, the cost is saved, and the practicability is improved.

Through the embedded sliding structure and the elastic telescopic structure, when the anchor rod is needed to be used, firstly, the anchor head is inserted into the hole of the anchor ring, the outer side of the anchor head is extruded by the inner wall of the anchor ring hole, so that the inclined edge of the trapezoidal fixture block is inwards pushed by the horizontal component force of the pressure to push the fixture block to move inwards in the chute, the limiting block fixedly arranged at the inner end is driven to move inwards in the limiting groove, the spring is extruded and contracted to deform to convert the kinetic energy into elastic potential energy for storage, when the anchor head continues to move downwards, so that the fixture block exceeds the lower side of the anchor ring hole, the pressure borne by the fixture block disappears, the spring converts the elastic potential energy into the kinetic energy to outwards push the limiting block to move in the limiting groove, the fixture block is driven to move outwards in the chute, thereby the straight bottom edge at the upper side of the fixture block, more firm, improved buckle mechanism's practicality.

The utility model provides a specific technical scheme as follows:

the utility model provides a pair of anchor head self-locking buckle structure for prestressed anchor rod includes the body of rod, the inside fixed mounting of body of rod lower extreme has the slot, the inside cartridge of slot has the inserted bar, the inside fixed mounting in inserted bar upper end has thread groove A, the inside fixed mounting of the body of rod of slot upper end has thread groove B, the inside screw rod that is equipped with that changes of thread groove A and thread groove B, inserted bar lower extreme fixed mounting has the anchor head, the inside fixed mounting in anchor head left and right sides has the spacing groove, the inside movable mounting of spacing groove has the stopper, the inner fixed mounting of stopper has the spring, the inside fixed mounting of spacing groove outside anchor head has the spout, the stopper outer end runs through spout fixedly connected with fixture block.

Optionally, the size of the slot is matched with the size of the inserted rod to form an embedded fixing structure.

Optionally, the outer wall of the screw is provided with threads which are mutually meshed with the threads on the inner walls of the thread groove A and the thread groove B to form a rotating structure.

Optionally, the size of the limiting groove is matched with the size of the limiting block to form an embedded sliding structure.

Optionally, the limiting block is fixedly connected with one end of the spring, and the other end of the spring is fixedly connected with the inner wall of the limiting groove to form an elastic telescopic structure.

The utility model has the advantages as follows:

1. the embodiment of the utility model provides an anchor head self-locking buckle structure for prestressed anchor rod, through embedded fixed knot structure and rotating structure, when needing to change the original anchor head, the upside screw rod is rotated manually, through outer wall cut screw thread and screw groove A and screw groove B inner wall cut screw thread intermeshing, make the screw rod rotate in screw groove A and screw groove B inside and move upwards and take out, manually pull down the anchor head, make the anchor head move down and drive the inserted bar of upper end fixed mounting move downwards from the slot and separate, can dismantle the anchor head alone, change new anchor head, aim at the slot with the inserted bar of new anchor head upper end fixed mounting and promote upwards, make the inserted bar move upwards and insert in the slot, make screw groove A and screw groove B align, use the screw rod to move downwards to the bottommost in screw groove A and screw groove B internal rotation, accomplish the change of new anchor head, need not to change the whole anchor rod, the cost is saved, and the practicability is improved.

2. Through the embedded sliding structure and the elastic telescopic structure, when the anchor rod is needed to be used, firstly, the anchor head is inserted into the hole of the anchor ring, the outer side of the anchor head is extruded by the inner wall of the anchor ring hole, so that the inclined edge of the trapezoidal fixture block is inwards pushed by the horizontal component force of the pressure to push the fixture block to move inwards in the chute, the limiting block fixedly arranged at the inner end is driven to move inwards in the limiting groove, the spring is extruded and contracted to deform to convert the kinetic energy into elastic potential energy for storage, when the anchor head continues to move downwards, so that the fixture block exceeds the lower side of the anchor ring hole, the pressure borne by the fixture block disappears, the spring converts the elastic potential energy into the kinetic energy to outwards push the limiting block to move in the limiting groove, the fixture block is driven to move outwards in the chute, thereby the straight bottom edge at the upper side of the fixture block, more firm, improved buckle mechanism's practicality.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic front sectional view of an anchor head self-locking buckle structure for a prestressed anchor rod according to an embodiment of the present invention;

fig. 2 is a schematic enlarged structural view of a part a in fig. 1 of an anchor head self-locking buckle structure for a prestressed anchor rod according to an embodiment of the present invention.

In the figure: 1. a rod body; 2. a slot; 3. inserting a rod; 4. a thread groove A; 5. a thread groove B; 6. a screw; 7. a limiting groove; 8. a limiting block; 9. a spring; 10. a chute; 11. a clamping block; 12. an anchor head.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

An anchor head self-locking buckle structure for a prestressed anchor rod according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 2.

Referring to fig. 1 and 2, the embodiment of the utility model provides a pair of anchor head self-locking buckle structure for prestressed anchor rod includes the body of rod 1, the inside fixed mounting of 1 lower extreme of the body of rod has slot 2, the inside cartridge of slot 2 has inserted bar 3, the inside fixed mounting in inserted bar 3 upper end has thread groove A4, the inside fixed mounting in 1 upper end body of rod of slot 2 upper end has thread groove B5, thread groove A4 and thread groove B5 are inside to be changeed and are equipped with

screw rod

6, 3 lower extreme fixed mounting of inserted bar has anchor head 12, the inside fixed mounting in 12 left and right sides of anchor head has spacing groove 7, the inside movable mounting of spacing groove 7 has stopper 8, 8 inner fixed mounting has spring 9, the inside fixed mounting of 7 outside anchor head 12 has spout 10, 10 fixedly connected with fixture block 11 runs through spout 8 outer end.

Referring to fig. 1, the size of the slot 2 is matched with the size of the insert rod 3 to form an embedded fixing structure, when the original anchor head 12 needs to be replaced, the upper screw rod 3 is manually rotated to be meshed with the threads cut on the inner walls of the slot a4 and the slot B5 through the threads cut on the outer walls, the screw rod 3 is rotated to move upwards and taken out from the inner walls of the slot a4 and the slot B5, the anchor head 12 is manually pulled downwards, the anchor head 12 is moved downwards to drive the insert rod 3 fixedly installed on the upper end to move downwards and separate from the slot 2, the anchor head 12 can be independently disassembled, a new anchor head 12 is replaced, the insert rod 3 fixedly installed on the upper end of the new anchor head 12 is aligned with the slot 2 to push upwards, the insert rod 3 moves upwards and is inserted into the slot 2, the slot a4 is aligned with the slot B5, the screw rod 6 is rotated downwards in the slot a4 and the slot B5 to the bottommost to complete the replacement of the new anchor head 12, the whole anchor rod does not need to be replaced, the cost is saved, and the practicability is improved.

Referring to fig. 1, when the original anchor head 12 needs to be replaced, the upper screw 3 is manually rotated and is engaged with the threads cut on the inner walls of the screw groove A4 and the screw groove B5, so that the screw 3 is rotated and moved upward inside the screw groove A4 and the screw groove B5, the anchor head 12 is manually pulled downward, the anchor head 12 is moved downward to drive the insertion rod 3 fixedly installed at the upper end to move downward and separate from the insertion groove 2, the anchor head 12 can be detached separately, a new anchor head 12 is replaced, the insertion rod 3 fixedly installed at the upper end of the new anchor head 12 is pushed upward by aligning the insertion groove 2, the insertion rod 3 is moved upward and inserted into the insertion groove 2, the screw groove a 5636 is aligned, the screw 6 is rotated downward in the screw groove A4 and the screw groove B5 to the bottom, and the replacement of the new anchor head 12 is completed, the whole anchor rod does not need to be replaced, the cost is saved, and the practicability is improved.

Referring to fig. 1 and 2, the size of the limiting groove 7 is matched with the size of the limiting block 8 to form an embedded sliding structure, when the anchor rod is needed, the anchor head 12 is firstly inserted into the hole of the anchor ring, the outer side of the anchor head 12 is extruded by the inner wall of the anchor ring hole, so that the horizontal component force of the pressure on the inclined side of the trapezoidal fixture block 11 pushes the fixture block 11 inwards in the sliding groove 10 to drive the limiting block 8 fixedly mounted at the inner end to move inwards in the limiting groove 7, the spring 9 is extruded, the kinetic energy is converted into elastic potential energy by the compression and contraction deformation of the spring 9 to be stored, when the anchor head 12 continues to move downwards, so that the fixture block 11 exceeds the lower side of the anchor ring hole, the pressure on the fixture block 11 disappears, the elastic potential energy is converted into kinetic energy by the spring 8 to push the limiting block 8 to move outwards in the limiting groove 7, the fixture block 11 is driven to move outwards in the sliding groove 10, so, thereby make anchor head 12 reach the auto-lock effect, need not to fix the stock with the help of outside buckle mechanism, more firm, improved buckle mechanism's practicality.

Referring to fig. 1 and 2, when the anchor rod is needed, the anchor head 12 is first inserted into the hole of the anchor ring, the outer side of the anchor head 12 is extruded by the inner wall of the anchor ring hole, so that the inclined side of the trapezoidal fixture block 11 is pushed inward by the horizontal component of the pressure to push the fixture block 11 inward in the chute 10, the inner end fixedly mounted stopper 8 is driven inward in the stopper groove 7, the spring 9 is extruded, the spring 9 is compressed, deformed and compressed to convert the kinetic energy into elastic potential energy for storage, when the anchor head 12 continues to move downward, so that the fixture block 11 exceeds the lower side of the anchor ring hole, the pressure applied to the fixture block 11 disappears, the spring 8 converts the elastic potential energy into kinetic energy to push the stopper 8 outward to move in the stopper groove 7, and drives the fixture block 11 to move outward in the chute 10, thereby make the straight base of fixture block 11 upside block the lower lateral wall of anchor ring to make anchor head 12 reach the auto-lock effect, need not to fix the stock with the help of outside buckle mechanism, it is more firm, improved buckle mechanism's practicality.

The embodiment of the utility model provides an anchor head self-locking buckle structure for prestressed anchor rod, when needing to change original anchor head 12, manually rotate upside screw rod 3, it has screw thread and spiral groove A4 and spiral groove B5 inner wall to cut through the outer wall and have screw thread intermeshing, make screw rod 3 rotate in spiral groove A4 and spiral groove B5 inside and move upward and take out, manually pull anchor head 12 downwards, make anchor head 12 move down and drive upper end fixed mounting's inserted bar 3 from slot 2 internal movement separation downwards, can dismantle anchor head 12 alone, change new anchor head 12, aim at slot 2 with new anchor head 12 upper end fixed mounting's inserted bar 3 and promote upwards, make inserted bar 3 move upwards and insert in slot 2, make spiral groove A4 and spiral groove B5 align, use screw rod 6 to rotate in spiral groove A4 and spiral groove B5 and move downwards to the bottommost, accomplish the change of new anchor head 12, when needing to use the stock, firstly, an anchor head 12 is inserted into a hole of an anchor ring, the outer side of the anchor head 12 is extruded by the inner wall of the anchor ring hole, so that the inclined edge of a trapezoidal fixture block 11 is pressed by a horizontal component of pressure to push the fixture block 11 to move inwards in a chute 10, a limit block 8 fixedly installed at the inner end is driven to move inwards in a limit groove 7, a spring 9 is extruded, the spring 9 is extruded and contracted to deform to convert kinetic energy into elastic potential energy to be stored, when the anchor head 12 continues to move downwards, so that the fixture block 11 exceeds the lower side of the anchor ring hole, the pressure applied to the fixture block 11 disappears, the spring 8 converts the elastic potential energy into kinetic energy to push the limit block 8 to move outwards in the limit groove 7, the fixture block 11 is driven to move outwards in the chute 10, and the straight bottom edge of the upper side of the fixture block 11 clamps the lower side wall of the anchor ring.

It is apparent that those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The anchor head self-locking buckle structure for the pre-stressed anchor rod is characterized by comprising a rod body (1), a slot (2) is fixedly arranged inside the lower end of the rod body (1), an inserting rod (3) is inserted inside the slot (2), a thread groove A (4) is fixedly arranged inside the upper end of the inserting rod (3), a thread groove B (5) is fixedly arranged inside the rod body (1) at the upper end of the slot (2), a screw rod (6) is rotatably arranged inside the thread groove A (4) and the thread groove B (5), an anchor head (12) is fixedly arranged at the lower end of the inserting rod (3), limiting grooves (7) are fixedly arranged inside the left side and the right side of the anchor head (12), limiting blocks (8) are movably arranged inside the limiting grooves (7), springs (9) are fixedly arranged at the inner ends of the limiting blocks (8), sliding grooves (10) are fixedly arranged inside the anchor head (12) at the outer sides of the limiting grooves (7), the outer end of the limiting block (8) penetrates through the sliding groove (10) and is fixedly connected with a clamping block (11).

2. The self-locking fastener structure of anchor head for prestressed anchor rod as claimed in claim 1, wherein the size of said slot (2) and the size of said inserted rod (3) are matched to each other to form an embedded fixing structure.

3. The self-locking fastener structure of the anchor head for the prestressed anchor as claimed in claim 1, wherein the screw (6) has threads on its outer wall to engage with the threads on the inner walls of the groove a (4) and the groove B (5) to form a rotary structure.

4. The self-locking fastener structure of the anchor head for the prestressed anchor as claimed in claim 1, wherein the size of the stopper groove (7) and the size of the stopper (8) are matched with each other to form an embedded sliding structure.

5. The anchor head self-locking buckle structure for the prestressed anchor rod as claimed in claim 1, wherein the stopper (8) is fixedly connected to one end of the spring (9), and the other end of the spring (9) is fixedly connected to the inner wall of the stopper groove (7) to form an elastic telescopic structure.