Lock bolt sleeve for high-strength steel bar connection

Abstract

The utility model discloses a lock bolt sleeve for connection of high-strength steel bars, which comprises a sleeve shell, the outer surface of the sleeve shell is fixedly connected with a fixed seat, the inner surface of the fixed seat is rotatably connected with a bidirectional screw, the outer surface of the bidirectional screw is in threaded connection with a limiting plate, the outer surface of the sleeve shell is provided with a sliding chute, and the sliding chute is provided with a sliding groove. A sliding groove is formed in the upper surface of the steel bar, a sliding block is slidably connected to the inner surface of the sliding groove, a connecting base and a wedge-shaped clamping mechanism are fixedly connected to the inner surface of the sliding block, and the wedge-shaped clamping mechanism comprises an upper wedge-shaped base, a lower wedge-shaped base, an upper connecting block, a lower connecting block, a connecting rod and an anti-falling buckle. The reinforcing steel bars can drive the clamping mechanism to contract when being subjected to axial tension, clamping force is increased to prevent the reinforcing steel bars from loosening, the clamping mechanism can be prevented from loosening when the reinforcing steel bars are subjected to axial pressure, the connecting firmness degree of the reinforcing steel bars is improved, the construction quality is improved, and potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of steel bar connection, in particular to an anti-loosening bolt sleeve for high-strength steel bar connection. Background Art

[0002] When high-strength steel bars are used, they often need to be connected, and thus high-strength steel bar connection equipment is needed. High-strength steel bar connection equipment basically has the advantages of light weight, strong structure, and long service life. It can meet the use requirements of high-strength steel bar connection work. The bolt sleeve for steel bar connection is an efficient and reliable steel bar connection method. It ensures the stability and reliability of the steel bar connection by mechanical means and is widely used in modern construction.

[0003] However, most of the existing steel bar connection equipment is only connected by threads. This connection method often causes the steel bars on both sides of the sleeve to have inconsistent connection lengths during threaded connection, resulting in uneven force on the threads on both sides when subjected to tension. The shorter side of the threaded connection is prone to loosening and causing the steel bar to detach, reducing the firmness of the connection, affecting the quality of construction and causing safety hazards. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide an anti-loosening bolt sleeve for high-strength steel bar connection. By arranging a wedge-shaped clamping mechanism, the steel bars can be easily installed while preventing them from falling off. When the steel bars are subjected to axial tension, the clamping mechanism can be driven to contract, thereby increasing the clamping force to prevent the steel bars from loosening. The clamping mechanism can also be prevented from loosening when the steel bars are subjected to axial pressure, thereby improving the firmness of the connection of the steel bars, improving the construction quality and reducing safety hazards.

[0005] The utility model also provides the above-mentioned anti-loosening bolt sleeve for high-strength steel bar connection, including: a sleeve shell, the outer surface of the sleeve shell is fixedly connected to a fixing seat, the inner surface of the fixing seat is rotatably connected to a bidirectional screw, the outer surface of the bidirectional screw is threadedly connected to a limiting plate, the outer surface of the sleeve shell is provided with a slide groove, the inner surface of the slide groove is slidably connected to a slider, the inner surface of the slider is fixedly connected to a connecting seat, and the inner surface of the connecting seat is provided with a threaded hole.

[0006] The camming mechanism comprises an upper wedge-shaped seat, a lower wedge-shaped seat, an upper connecting block, a lower connecting block, a connecting rod and an anti-dropping buckle, the outer surface of the upper wedge-shaped seat is fixedly connected to the upper connecting block, the lower surface of the upper connecting block is fixedly connected to the connecting rod, the outer surface of the connecting rod is slidably connected to the lower connecting block, and one end of the connecting rod is away from the upper connecting block and is fixedly connected to the anti-dropping buckle. The outer surface of the lower connecting block is fixedly connected to the lower wedge-shaped seat, and the inner surface of the upper wedge-shaped seat is fixedly connected with a non-slip rubber pad, and the inner surface of the non-slip rubber pad is slidably connected to a steel bar body, and the outer surface of the steel bar body is provided with a straight thread. By arranging the wedge-shaped clamping mechanism, the steel bar can be easily installed while preventing the steel bar from falling off. When the steel bar is subjected to axial tension, the clamping mechanism can be driven to contract, so that the clamping force is increased to prevent the steel bar from loosening, and the clamping mechanism can also be prevented from loosening when the steel bar is subjected to axial pressure, thereby improving the connection firmness of the steel bar, improving the construction quality and reducing safety hazards.

[0007] According to the anti-loosening bolt sleeve for high-strength steel bar connection, the outer surface of the straight thread is threadedly connected to the threaded hole, and the inner surface of the lower wedge-shaped seat is fixedly connected to the anti-skid rubber pad, which facilitates the connection between the steel bar body and the connecting seat. The anti-skid rubber pad arranged inside the wedge seat can increase the friction between the steel bar body and the wedge seat so that the steel bar is not easy to loosen when the wedge seat is clamped.

[0008] According to the anti-loosening bolt sleeve for high-strength steel bar connection, the end of the bidirectional screw away from the fixed seat is fixedly connected with a rotating handle. The number of the bidirectional screws is four and they are arranged in a rectangular array, which is convenient for driving the two limit plates to move to fix the position of the slider and prevent the connection seat from moving.

[0009] According to the anti-loosening bolt sleeve for high-strength steel bar connection, the inner surface of the limit plate is slidably connected to the sleeve outer shell, and the number of the limit plates is two and they are distributed on the left and right.

[0010] According to the anti-loosening bolt sleeve for high-strength steel bar connection, the outer surface of the connecting seat is slidably connected to the sleeve shell, and the number of the connecting seats is two and they are distributed on the left and right, which facilitates the movement of the connecting seat and thereby drives the movement of the wedge-shaped seat to achieve the clamping and loosening of the steel bar body.

[0011] According to the anti-loosening bolt sleeve for high-strength steel bar connection, the outer surface of the upper wedge-shaped seat is slidably connected to the sleeve shell, and the outer surface of the lower wedge-shaped seat is slidably connected to the sleeve shell.

[0012] According to the anti-loosening bolt sleeve for high-strength steel bar connection, the outer surface of the connecting seat is slidably connected to the upper wedge seat, and the outer surface of the connecting seat is slidably connected to the lower wedge seat.

[0013] According to the anti-loosening bolt sleeve for high-strength steel bar connection, the outer surface of the limit plate is slidably connected to the slider, and the outer surface of the connection seat is slidably connected to the anti-slip rubber pad.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0016] Figure 1 This is the overall structural diagram of a high-strength steel bar connection anti-loosening bolt sleeve of the utility model;

[0017] Figure 2 This is a diagram of the internal structure of a high-strength steel bar connection anti-loosening bolt sleeve of the utility model;

[0018] Figure 3 This is a cross-sectional view of a high-strength steel bar connection anti-loosening bolt sleeve of the utility model;

[0019] Figure 4 The utility model is an exploded schematic diagram of the local structure of an anti-loosening bolt sleeve for high-strength steel bar connection.

[0020] Legend:

[0021] 1. Sleeve housing; 2. Fixed seat; 3. Bidirectional screw; 4. Limiting plate; 5. Slide groove; 6. Sliding block; 7. Connecting seat; 8. Threaded hole; 9. Upper wedge-shaped seat; 10. Lower wedge-shaped seat; 11. Upper connecting block; 12. Lower connecting block; 13. Connecting rod; 14. Anti-drop buckle; 15. Anti-slip rubber pad; 16. Steel bar body; 17. Straight thread; 18. Rotating handle. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0023] Reference Figure 1-4The utility model embodiment of a high-strength steel bar connection anti-loosening bolt sleeve comprises: a sleeve shell 1, the outer surface of the sleeve shell 1 is fixedly connected to a fixing seat 2, the inner surface of the fixing seat 2 is rotatably connected to a bidirectional screw 3, the end of the bidirectional screw 3 away from the fixing seat 2 is fixedly connected to a rotating handle 18, the number of the bidirectional screws 3 is four and in a rectangular array, the outer surface of the bidirectional screw 3 is threadedly connected to a limiting plate 4, the inner surface of the limiting plate 4 is slidably connected to the sleeve shell 1, the number of the limiting plates 4 is two and distributed left and right, the outer surface of the sleeve shell 1 is provided with a slide groove 5, the inner surface of the slide groove 5 is slidably connected to a slider 6, the outer surface of the limiting plate 4 is slidably connected to the slider 6, the inner surface of the slider 6 is fixedly connected to a connecting seat 7, the outer surface of the connecting seat 7 is slidably connected to the sleeve shell 1, the number of the connecting seats 7 is two and distributed left and right, and the inner surface of the connecting seat 7 is provided with a threaded hole 8.

[0024] The wedge-shaped clamping mechanism includes an upper wedge-shaped seat 9, a lower wedge-shaped seat 10, an upper connecting block 11, a lower connecting block 12, a connecting rod 13 and an anti-drop buckle 14. The outer surface of the upper wedge-shaped seat 9 is fixedly connected to the upper connecting block 11, the outer surface of the upper wedge-shaped seat 9 is slidably connected to the sleeve housing 1, the outer surface of the connecting seat 7 is slidably connected to the upper wedge-shaped seat 9, the lower surface of the upper connecting block 11 is fixedly connected to the connecting rod 13, the outer surface of the connecting rod 13 is slidably connected to the lower connecting block 12, the end of the connecting rod 13 away from the upper connecting block 11 is fixedly connected to the anti-drop buckle 14, and the lower connecting The outer surface of the block 12 is fixedly connected to the lower wedge seat 10, the outer surface of the lower wedge seat 10 is slidably connected to the sleeve housing 1, the outer surface of the connecting seat 7 is slidably connected to the lower wedge seat 10, the inner surface of the upper wedge seat 9 is fixedly connected with a non-slip rubber pad 15, the outer surface of the connecting seat 7 is slidably connected to the non-slip rubber pad 15, the inner surface of the lower wedge seat 10 is fixedly connected to the non-slip rubber pad 15, the inner surface of the non-slip rubber pad 15 is slidably connected with a steel bar body 16, the outer surface of the steel bar body 16 is provided with a straight thread 17, and the outer surface of the straight thread 17 is threadedly connected to the threaded hole 8.

[0025] Working principle: insert the steel bar body 16 into the sleeve shell 1 and threadably connect it with the connecting seat 7, pull the sleeve shell 1 or the steel bar body 16 to make the connecting seat 7 push the upper wedge seat 9 and the lower wedge seat 10 to slide along the inner wall of the sleeve shell 1 to clamp the steel bar body 16, so that when the steel bar body 16 is subjected to axial tension, the clamping force of the wedge seat on the steel bar body 16 will increase with the increase of the axial tension. The upper wedge seat 9 and the lower wedge seat 10 are connected by the connecting rod 13, and can move synchronously under the action of the upper connecting block 11 and the lower connecting block 12 to prevent the upper wedge seat 9 and the lower wedge seat 10 from being misaligned during movement. The slider 6 on the connecting seat 7 moves along the slide groove 5, so that the connecting seat 7 can move flexibly while preventing the connecting seat 7 from rotating when the steel bar body 16 is threadably connected to the connecting seat 7. After the steel bar body 16 is assembled, the rotating handle 18 is rotated to drive the limit plate 4 to move to both sides to fix the position of the slider 6, so as to prevent the steel bar body 16 from pushing the connecting seat 7 to loosen the steel bar body 16 when subjected to axial pressure.

[0026] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A high-strength steel bar connection anti-loosening bolt sleeve, characterized in that: include: A sleeve shell (1), wherein the outer surface of the sleeve shell (1) is fixedly connected to a fixing seat (2), the inner surface of the fixing seat (2) is rotatably connected to a bidirectional screw (3), the outer surface of the bidirectional screw (3) is threadedly connected to a limit plate (4), the outer surface of the sleeve shell (1) is provided with a slide groove (5), the inner surface of the slide groove (5) is slidably connected to a slider (6), the inner surface of the slider (6) is fixedly connected to a connecting seat (7), and the inner surface of the connecting seat (7) is provided with a threaded hole (8); A wedge-shaped clamping mechanism, the wedge-shaped clamping mechanism comprising an upper wedge-shaped seat (9), a lower wedge-shaped seat (10), an upper connecting block (11), a lower connecting block (12), a connecting rod (13) and an anti-dropping buckle (14), wherein the outer surface of the upper wedge-shaped seat (9) is fixedly connected to the upper connecting block (11), the lower surface of the upper connecting block (11) is fixedly connected to the connecting rod (13), the outer surface of the connecting rod (13) is slidably connected to the lower connecting block (12), one end of the connecting rod (13) away from the upper connecting block (11) is fixedly connected to the anti-dropping buckle (14), the outer surface of the lower connecting block (12) is fixedly connected to the lower wedge-shaped seat (10), the inner surface of the upper wedge-shaped seat (9) is fixedly connected to an anti-slip rubber pad (15), the inner surface of the anti-slip rubber pad (15) is slidably connected to a steel bar body (16), and the outer surface of the steel bar body (16) is provided with a straight thread (17).

2. The anti-loosening bolt sleeve for high-strength steel bar connection according to claim 1, characterized in that: The outer surface of the straight thread (17) is threadedly connected to the threaded hole (8), and the inner surface of the lower wedge-shaped seat (10) is fixedly connected to the anti-slip rubber pad (15).

3. The anti-loosening bolt sleeve for high-strength steel bar connection according to claim 1, characterized in that: One end of the bidirectional screw rod (3) away from the fixing seat (2) is fixedly connected to a rotating handle (18), and the number of the bidirectional screw rods (3) is four and arranged in a rectangular array.

4. The anti-loosening bolt sleeve for high-strength steel bar connection according to claim 1, characterized in that: The inner surface of the limit plate (4) is slidably connected to the sleeve outer shell (1), and there are two limit plates (4) distributed on the left and right.

5. The anti-loosening bolt sleeve for high-strength steel bar connection according to claim 1, characterized in that: The outer surface of the connecting seat (7) is slidably connected to the sleeve housing (1), and there are two connecting seats (7) distributed on the left and right.

6. The anti-loosening bolt sleeve for high-strength steel bar connection according to claim 1, characterized in that: The outer surface of the upper wedge-shaped seat (9) is slidably connected to the sleeve outer shell (1), and the outer surface of the lower wedge-shaped seat (10) is slidably connected to the sleeve outer shell (1).

7. The anti-loosening bolt sleeve for high-strength steel bar connection according to claim 1, characterized in that: The outer surface of the connecting seat (7) is slidably connected to the upper wedge-shaped seat (9), and the outer surface of the connecting seat (7) is slidably connected to the lower wedge-shaped seat (10).

8. The anti-loosening bolt sleeve for high-strength steel bar connection according to claim 1, characterized in that: The outer surface of the limit plate (4) is slidably connected to the slider (6), and the outer surface of the connecting seat (7) is slidably connected to the anti-slip rubber pad (15).

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