Detachable expansion anchor bolt

Abstract

The utility model relates to the technical field of fasteners, and discloses a detachable expansion anchor bolt which comprises a bolt body, a gasket is sleeved on the periphery of the bolt body, a nut is in threaded connection with the periphery of the bolt body, a connecting rod is connected inside the bolt body in a sliding mode, and one end of the connecting rod is fixedly connected with a conical block. The periphery of the end, close to the pressing block, of the connecting rod is fixedly connected with a check block, four sliding blocks are slidably connected into the bolt, the ends, close to the conical block, of the sliding blocks are fixedly connected with arc-shaped blocks, and two springs are arranged between the arc-shaped blocks and the bolt. And one end, far away from the arc-shaped block, of the sliding block is fixedly connected with an arc-shaped plate. According to the detachable expansion anchor bolt, the bolt, the gasket, the nut, the connecting rod, the conical block, the check block, the sliding block, the arc-shaped block, the spring, the arc-shaped plate and the like are arranged, so that the expansion anchor bolt can be conveniently and rapidly detached, and the expansion anchor bolt can be recycled.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, in particular to a detachable expansion anchor bolt. Background Art

[0002] Expansion anchor bolts are generally composed of screw column, expansion head, expansion sleeve, nut, washer and gasket. In the process of housing construction, expansion anchor bolts are often used to install and fix some temporary facilities and safety protection facilities. It relies on the expansion part of the bolt head to squeeze the wall material to achieve fixation.

[0003] After being embedded in the wall, the existing expansion anchor bolts cannot be easily and quickly disassembled and recycled, which wastes resources.

[0004] In view of the above problems, a detachable expansion anchor is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a detachable expansion anchor bolt, aiming to improve the problem in the prior art that the expansion anchor bolt cannot be conveniently and quickly disassembled and recycled, resulting in a waste of resources.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a detachable expansion anchor bolt comprises a bolt, a gasket is sleeved on the outer periphery of the bolt, a nut is threadedly connected to the outer periphery of the bolt, a connecting rod is slidably connected inside the bolt, one end of the connecting rod is fixedly connected to a conical block, an end of the connecting rod away from the conical block is fixedly connected to a stopper, four sliding blocks are slidably connected inside the bolt, an end of the sliding block close to the conical block is fixedly connected to an arc block, two springs are arranged between the arc block and the bolt, and an end of the sliding block away from the arc block is fixedly connected to an arc plate.

[0007] As a further description of the above technical solution:

[0008] A slide groove is arranged on the top of the bolt.

[0009] As a further description of the above technical solution:

[0010] A plurality of barbs are fixedly connected to the outer periphery of the arc-shaped plate.

[0011] As a further description of the above technical solution:

[0012] One end of the spring is fixedly connected to the inner wall of the bolt.

[0013] As a further description of the above technical solution:

[0014] The other end of the spring is fixedly connected to the outside of the arc block.

[0015] As a further description of the above technical solution:

[0016] The top of the barb is 3 mm away from the surface of the arc plate.

[0017] As a further description of the above technical solution:

[0018] The outer periphery of the conical block is slidably connected to the inside of the bolt.

[0019] As a further description of the above technical solution:

[0020] One end of the connecting rod away from the conical block is fixedly connected with a pressing block.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, when the expansion anchor is placed inside the wall, the pressing block is pushed, and the pressing block drives the connecting rod to retract into the bolt, and the connecting rod drives the conical block. The conical block pushes the arc block and the arc block compresses the spring at the same time. The spring generates elastic force, and the arc block pushes the sliding block to slide outside the bolt, and the sliding block pushes the arc plate to abut against the wall. When the arc plate is completely pushed out and unfolded, the block on the outer periphery of the connecting rod blocks the connecting rod from retracting into the bolt. When the expansion anchor is removed, the bolt is rotated and pushed into the wall. When the block and the slide groove are aligned, the connecting rod continues to push the conical block to retract into the bolt. After the arc block loses the support of the conical block, it is pushed by the spring to retract into the bolt, and the sliding block and the arc plate are retracted at the same time. At this time, the expansion anchor can be taken out, so that the expansion anchor can be disassembled conveniently and quickly, and the expansion anchor can be recycled.

[0023] 2. In the utility model, when the expansion anchor is placed inside the wall, the pressing block is pushed, and the pressing block drives the connecting rod to retract into the bolt, and the connecting rod drives the conical block, and the conical block pushes the arc block and the arc block compresses the spring at the same time, and the spring generates elastic force, and the arc block pushes the sliding block to slide outside the bolt, and the sliding block pushes the arc plate to abut against the wall. A plurality of barbs are fixed on the outer periphery of the arc plate, and the barb tips are opposite to the pushing direction of the expansion anchor, thereby increasing the friction between the arc plate and the wall, making the expansion anchor more stable and firm. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional diagram of a detachable expansion anchor bolt proposed by the utility model;

[0025] Figure 2 This is a structural schematic diagram of a slideway of a detachable expansion anchor bolt proposed by the utility model;

[0026] Figure 3This is a structural schematic diagram of a conical block of a detachable expansion anchor bolt proposed by the utility model;

[0027] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0028] Legend:

[0029] 1. Bolt; 2. Washer; 3. Nut; 4. Connecting rod; 5. Press block; 6. Conical block; 7. Stop block; 8. Sliding block; 9. Arc block; 10. Spring; 11. Arc plate; 12. Barb; 13. Slide groove. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Reference Figure 1-Figure 4 The utility model provides an embodiment: a detachable expansion anchor bolt, including a bolt 1, a gasket 2 is sleeved on the outer periphery of the bolt 1, a nut 3 is threadedly connected to the outer periphery of the bolt 1, a connecting rod 4 is slidably connected inside the bolt 1, one end of the connecting rod 4 is fixedly connected to a conical block 6, and the outer periphery of the end of the connecting rod 4 away from the conical block 6 is fixedly connected to a stopper 7, four sliding blocks 8 are slidably connected inside the bolt 1, one end of the sliding block 8 close to the conical block 6 is fixedly connected to an arc block 9, two springs 10 are arranged between the arc block 9 and the bolt 1, and one end of the sliding block 8 away from the arc block 9 is fixedly connected to an arc plate 11.

[0032] Specifically, the bolt 1 is the main body of the entire device, the gasket 2 is used to stably connect the bolt 1 and the nut 3 to prevent the thread from slipping, the nut 3 is used to cooperate with the bolt 1 for stable installation, the connecting rod 4 is used to push the conical block 6 and install other components, the conical block 6 is used to push the arc block 9, the stopper 7 is used to prevent the connecting rod 4 from completely entering the bolt 1, the sliding block 8 is used to push the arc plate 11, the spring 10 is used to provide elastic force, and the arc plate 11 can abut against the wall.

[0033] Reference Figure 1-Figure 4 A slide groove 13 is provided on the top of the bolt 1. A plurality of barbs 12 are fixedly connected to the outer periphery of the arc plate 11. One end of the spring 10 is fixedly connected to the inner wall of the bolt 1. The other end of the spring 10 is fixedly connected to the outer side of the arc block 9. The top of the barb 12 is 3 mm away from the surface of the arc plate 11. The outer periphery of the conical block 6 is slidably connected to the inside of the bolt 1. A pressing block 5 is fixedly connected to the end of the connecting rod 4 away from the conical block 6.

[0034] Specifically, the slide groove 13 is used to cooperate with the block 7, so that the connecting rod 4 can be further retracted into the bolt 1, and the barb 12 is used to increase the friction with the wall. One end of the spring 10 is fixed to the inner wall of the bolt 1 and the other end is fixed to the outside of the arc block 9, so that the spring 10 can be compressed by the arc block 9 to generate elastic force. The top of the barb 12 is 3 mm away from the surface of the arc plate 11, so that the barb 12 can be more completely inserted into the wall. The outer periphery of the conical block 6 slides inside the bolt 1, so that the conical block 6 slides stably. A pressing block 5 is fixed on the end of the connecting rod 4 away from the conical block 6, and the pressing block 5 is used to facilitate pushing the connecting rod 4.

[0035] Working principle: when the expansion anchor is placed inside the wall, the pressing block 5 is pushed, and the pressing block 5 drives the connecting rod 4 to retract into the bolt 1, and the connecting rod 4 drives the conical block 6. The conical block 6 pushes the arc block 9 and the arc block 9 compresses the spring 10. The spring 10 generates elastic force, and the arc block 9 pushes the sliding block 8 to slide outside the bolt 1. The sliding block 8 pushes the arc plate 11 to abut against the wall. When the arc plate 11 is completely pushed out and unfolded, the block 7 on the periphery of the connecting rod 4 blocks the connecting rod 4 from retracting into the bolt 1, and then the gasket 2 and the nut 3 are installed on the periphery of the bolt 1. When removing the expansion anchor, turn the bolt 1 and push it into the wall. When the block 7 and the slide groove 13 are aligned, the connecting rod 4 continues to push the conical block 6 to retract into the bolt 1. After the arc block 9 loses the support of the conical block 6, it is pushed by the spring 10 to retract into the bolt 1, and the sliding block 8 and the arc plate 11 are retracted at the same time. At this time, the expansion anchor can be taken out.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A detachable expansion anchor bolt, comprising a bolt (1), characterized in that: A gasket (2) is sleeved on the outer periphery of the bolt (1), a nut (3) is threadedly connected to the outer periphery of the bolt (1), a connecting rod (4) is slidably connected inside the bolt (1), one end of the connecting rod (4) is fixedly connected to a conical block (6), and the outer periphery of the end of the connecting rod (4) away from the conical block (6) is fixedly connected to a stopper (7), four sliding blocks (8) are slidably connected inside the bolt (1), one end of the sliding block (8) close to the conical block (6) is fixedly connected to an arc block (9), two springs (10) are arranged between the arc block (9) and the bolt (1), and one end of the sliding block (8) away from the arc block (9) is fixedly connected to an arc plate (11).

2. A detachable expansion anchor according to claim 1, characterized in that: A sliding groove (13) is provided on the top of the bolt (1).

3. The detachable expansion anchor according to claim 1, characterized in that: A plurality of barbs (12) are fixedly connected to the outer periphery of the arc-shaped plate (11).

4. The detachable expansion anchor according to claim 1, characterized in that: One end of the spring (10) is fixedly connected to the inner wall of the bolt (1).

5. The detachable expansion anchor according to claim 1, characterized in that: The other end of the spring (10) is fixedly connected to the outside of the arc block (9).

6. The detachable expansion anchor according to claim 3, characterized in that: The top end of the barb (12) is 3 mm away from the surface of the arc-shaped plate (11).

7. The detachable expansion anchor according to claim 1, characterized in that: The outer periphery of the conical block (6) is slidably connected to the inside of the bolt (1).

8. The detachable expansion anchor according to claim 1, characterized in that: One end of the connecting rod (4) away from the conical block (6) is fixedly connected to a pressing block (5).

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