CN215519516U

CN215519516U - Straight thread connecting sleeve for reinforcing steel bar

Info

Publication number: CN215519516U
Application number: CN202121294767.1U
Authority: CN
Inventors: 王荣平; 孙海滨; 谭志成
Original assignee: Xiamen Rongxin Weiye Building Materials Co ltd
Current assignee: Xiamen Rongxin Weiye Building Materials Co ltd
Priority date: 2021-06-10
Filing date: 2021-06-10
Publication date: 2022-01-14
Anticipated expiration: 2031-06-10

Abstract

A straight threaded connection sleeve for a steel bar comprises a sleeve with a thread formed on the inner side wall, wherein a limiting structure used for increasing the friction force between a tightening tool and the sleeve is arranged on the outer side wall of the sleeve, the limiting structure comprises a clamping table for clamping the tightening tool and a tooth socket arranged on the surface of the clamping table, the clamping table is arranged on the outer wall of the sleeve, and the tooth socket is used for meshing with a clamping end of the tightening tool; the clamping device is characterized in that a sliding groove surrounding the axial direction of the sleeve is formed in the outer side wall of the sleeve, the clamping table is arranged on the sliding groove in a sliding mode, and a fastening piece used for locking and fixing the clamping table on the sleeve is arranged between the clamping table and the sleeve. The utility model provides a straight thread connecting sleeve for a reinforcing steel bar, which has the advantage of improving the friction force of the outer surface of the sleeve so that a tightening tool is not easy to slide off the outer surface of the sleeve.

Description

Straight thread connecting sleeve for reinforcing steel bar

Technical Field

The utility model relates to the field of construction equipment, in particular to a straight thread connecting sleeve for a steel bar.

Background

In the construction industry, conventional reinforcing bar connections are usually lap joints and welded joints. With the rapid development of the construction industry, lap joint is not suitable for large-size steel bars, and welded connection has many defects, such as poor weldability, unstable power supply, poor welder level, short construction period, insufficient capacitance and the like caused by unstable steel bar materials, so that the welding quality cannot be ensured. The mechanical connection of the steel bars is a novel steel bar connection mode, is called as a 'third-generation steel bar joint' after lapping and welding, and has the remarkable advantages of higher joint strength than a steel bar base metal, high connection speed, no pollution, steel saving and the like. Common steel bar connecting sleeve is hollow cylinder, and the telescopic inside wall has seted up the screw thread, and in the connection process, need rotate the sleeve on telescopic surface with screwing tool cover such as breakout tongs or clamp, the telescopic surface is level and smooth, makes the screwing tool skid easily when rotating the sleeve, especially for the clamp, when pressing from both sides tightly and rotating the sleeve, easily from the axial left side of sleeve or right side landing, specifically is the direction of exerting oneself of screwing tool.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a straight thread connecting sleeve for reinforcing steel bars, which at least solves the problem that a tightening tool is easy to fall off along the left side or the right side of the axial direction of a sleeve when the sleeve for connecting the reinforcing steel bars is rotated by the tightening tool, and has the advantage of improving the friction force of the outer surface of the sleeve so that the tightening tool is not easy to slide off from the outer surface of the sleeve.

(II) technical scheme

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a straight threaded connection sleeve of reinforcing bar, sets up the screwed sleeve on the inside wall, be equipped with the limit structure who is used for the increase to screw up the frictional force between instrument and the sleeve on the telescopic lateral wall, limit structure is including supplying the centre gripping platform of screwing up the instrument centre gripping and locating the surperficial tooth's socket of centre gripping platform, the centre gripping platform is located on the sleeve outer wall, the tooth's socket is used for meshing the exposed core of screwing up the instrument.

So set up, through the meshing of screwing up instrument and tooth's socket for screw up the instrument and more compact at the in-process that rotates the sleeve, be difficult for the landing, and then improved and screwed up the instrument and screwed up the effect that more compact was put when changeing the sleeve.

Further setting, set up on the telescopic lateral wall and encircle in the axial spout of sleeve, the centre gripping platform slides and locates on the spout, and is equipped with the fastener that is used for fixing the centre gripping platform lock on the sleeve between centre gripping platform and the sleeve.

So set up, can be according to the site operation condition, the position of adjustment centre gripping platform for screw up the better messenger power of instrument, and then improved this telescopic practicality.

Further setting, the fastener includes locking bolt and stopper, and the sleeve tip is located to the stopper, a plurality of through-hole has been seted up on the stopper, set up threaded hole on the centre gripping platform, after locking bolt passed through-hole and threaded connection screw hole, locking bolt's nut leaned on the stopper.

So set up, through the screw hole of locking bolt threaded connection grip block, make things convenient for the unblock of grip block and fixed for the operation of adjusting the grip block position is more simple and convenient.

The sliding groove is a T-shaped groove, and the position of the clamping table sliding in the sliding groove is a T-shaped part.

So set up, avoided the centre gripping platform to appear in the condition along sleeve axis direction skew in slip process.

Further setting, be equipped with the anticreep along on the sleeve, the anticreep is along being located the one side that the stopper was kept away from to the centre gripping platform, and forms the centre gripping space that supplies the centre gripping of screwing up the instrument between anticreep edge and the stopper.

So set up, when screwing up the instrument centre gripping and rotating on the centre gripping platform, the anticreep is followed and is held the space with adding that spacing block formed and make the instrument of screwing up the left and right sides have limit structure, blocks that the instrument of screwing up takes place the landing of left and right sides, and then promotes this telescopic practicality.

Further setting, all be equipped with the corrugate arch on the lateral wall of stopper and anticreep along opposite one side.

So set up, the anticreep is followed and is formed the centre gripping space that supplies to screw up the instrument centre gripping between the stopper, when screwing up the instrument and rotate, the bellied multiplicable frictional force of corrugate of its left and right sides to better messenger's power.

(III) advantageous effects

Compared with the prior art, the reinforcing steel bar straight thread connecting sleeve provided by the utility model has the following beneficial effects:

1. be equipped with the centre gripping platform on telescopic lateral wall, and the tooth's socket has been seted up on the centre gripping platform, through the tightening tool who has the tooth mouth with its tooth mouth and tooth's socket meshing, when making the sleeve receive the tightening tool to rotate, the tightening tool is difficult for coming off from the sleeve outer wall, overcome current reinforcing bar straight thread connection sleeve when tightening tool clamp sleeve rotates, the tightening tool is difficult to clamp sleeve and leads to the problem that the tightening tool comes off from the axial left and right sides of sleeve, and then realized that the tightening tool is easy to clamp sleeve and be difficult to come off from the axial left and right sides of sleeve, the telescopic convenience of rotation has been improved.

2. Through setting up stopper and anticreep edge, the anticreep is along and the stopper between form the centre gripping space that supplies the instrument centre gripping of screwing up, make the instrument of screwing up rotate behind the centre gripping grip slipper when, be difficult for following sleeve axial and drop, overcome current reinforcing bar straight thread connection sleeve when screwing up the instrument and twist, the problem of sleeve axial slippage is followed easily to the instrument of screwing up, and then realized the instrument of screwing up when rotating the sleeve, have along sleeve axial protection architecture, be difficult for the slippage, make this telescopic practicality better.

Drawings

Fig. 1 is an overall view of the present invention.

Wherein: 1. a sleeve; 2. a limiting structure; 3. a clamping table; 4. a chute; 5. a fastener; 6. the anti-falling edge; 7. a protrusion; 50. locking the bolt; 51. a limiting block; 30. a tooth socket; 31. a threaded hole; 510. and a through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Please refer to fig. 1, in which fig. 1 is an overall view of the present invention.

The utility model provides a steel bar straight thread connecting sleeve 1 which comprises a sleeve 1 with a thread on the inner side wall, wherein a limiting structure 2 used for increasing the friction force between a tightening tool and the sleeve 1 is arranged on the outer side wall of the sleeve 1, the limiting structure 2 comprises a clamping table 3 used for clamping the tightening tool and a tooth groove 30 arranged on the surface of the clamping table 3, the clamping table 3 is arranged on the outer wall of the sleeve 1, the tooth groove 30 is used for meshing a clamping end of the tightening tool, a sliding groove 4 surrounding the axial direction of the sleeve 1 is arranged on the outer side wall of the sleeve 1, the clamping table 3 is arranged on the sliding groove 4 in a sliding manner, and a fastener 5 used for locking and fixing the clamping table 3 on the sleeve 1 is arranged between the clamping table 3 and the sleeve 1. The position of the clamping table 3 can be adjusted according to the site construction condition, so that the screwing tool can better enhance the force, and the practicability of the sleeve 1 is further improved. The slide groove 4 is a T-shaped groove, and the position where the holding table 3 slides in the slide groove 4 is a T-shaped portion, so that the holding table 3 does not displace in the axial direction of the sleeve 1 when sliding.

The left and right sides of centre gripping platform 3 still is equipped with stopper 51 and anticreep on the equal fixed connection sleeve 1 and follows 6, and stopper 51 and anticreep form the centre gripping space that supplies to screw up the instrument centre gripping between following 6, have avoided screwing up the instrument and have taken place along sleeve 1 endwise slip's the condition when rotating, have improved security and practicality to be equipped with corrugate arch 7 on stopper 51 and the anticreep relative inside wall along 6, it is used for increasing frictional force, makes the instrument of screwing up better messenger's power when rotating.

Fastener 5 includes lock bolt 50, has seted up a plurality of through-hole 510 on the stopper 51, has seted up threaded hole 31 on the centre gripping platform 3, and after lock bolt 50 passed through-hole 510 and threaded connection threaded hole 31, lock bolt 50's nut supported on stopper 51, through unblock and lock solid lock bolt 50, conveniently adjusts the position of centre gripping platform 3, and then makes the tightening tool messenger power easier.

The working principle is as follows: when screwing up the instrument and for clamp, have the tooth mouth that corresponds tooth's socket 30 on the clamp, the tooth mouth meshing tooth's socket 30 that conveniently clamps to make power, before with the clamp, fix the position of centre gripping platform 3 earlier, through locking bolt 50 the screw hole 31 of through-hole 510 threaded connection centre gripping platform 3 again of passing stopper 51, locking bolt 50's nut butt is on stopper 51 this moment, thereby the position of fixed centre gripping platform 3, conveniently screw up the instrument counterpoint and make power, and then rotate sleeve 1.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a straight threaded connection sleeve of reinforcing bar, its characterized in that sets up screwed sleeve (1) on including the inside wall, be equipped with limit structure (2) that are used for the increase to screw up the frictional force between instrument and sleeve (1) on the lateral wall of sleeve (1), limit structure (2) are including supplying to screw up centre gripping platform (3) of instrument centre gripping and locating centre gripping platform (3) tooth's socket (30) on the surface, on sleeve (1) outer wall is located in centre gripping platform (3), tooth's socket (30) are used for the clamping-end of meshing the instrument of screwing up.

2. The straight threaded connection sleeve for the steel bars as claimed in claim 1 is characterized in that a sliding groove (4) surrounding the sleeve (1) in the axial direction is formed in the outer side wall of the sleeve (1), the clamping table (3) is slidably arranged on the sliding groove (4), and a fastening piece (5) used for locking and fixing the clamping table (3) on the sleeve (1) is arranged between the clamping table (3) and the sleeve (1).

3. The reinforcing steel bar straight thread connecting sleeve is characterized in that a fastener (5) comprises a locking bolt (50) and a limiting block (51), the limiting block (51) is arranged at the end of the sleeve (1), a plurality of through holes (510) are formed in the limiting block (51), a threaded hole (31) is formed in the clamping table (3), and after the locking bolt (50) penetrates through the through holes (510) and is in threaded connection with the threaded hole (31), the nut of the locking bolt (50) abuts against the limiting block (51).

4. A straight threaded reinforcing bar connection sleeve according to claim 2, wherein the slot (4) is a T-shaped slot and the position where the clamping table (3) slides in the slot (4) is a T-shaped portion.

5. A steel bar straight thread connecting sleeve according to claim 3, wherein the sleeve (1) is provided with an anti-drop edge (6), the anti-drop edge (6) is located on one side of the clamping table (3) far away from the limiting block (51), and a clamping space for clamping by a tightening tool is formed between the anti-drop edge (6) and the limiting block (51).

6. A straight thread connecting sleeve for reinforcing steel bars as claimed in claim 5, wherein the side wall of the limiting block (51) opposite to the anti-drop edge (6) is provided with corrugated protrusions (7).