High-strength straight thread steel bar connecting sleeve

Abstract

The utility model relates to the technical field of reinforcing steel bar connecting sleeves, in particular to a high-strength straight thread reinforcing steel bar connecting sleeve which comprises a sleeve body, the front end and the rear end of the sleeve body are fixedly connected with inserting cylinders, and the front end and the rear end of the interior of the sleeve body are provided with inserting grooves matched with the inserting cylinders for use. The two groups of inserting cylinders are fixedly connected with the sleeve main body through fixing mechanisms, the inner sides of the two groups of inserting cylinders are in threaded connection with connecting steel bars, a first spring is movably mounted in the sleeve main body, and fastening blocks are slidably connected to the positions, located at the front end and the rear end of the first spring, in the sleeve main body; the ends, away from each other, of the two sets of inserting cylinders are fixedly connected with wrench clamping positions, the outer sides of the two sets of inserting cylinders are symmetrically and rotationally connected with fastening handles, compared with an existing steel bar connecting sleeve, the steel bar connecting sleeve has the advantages that the installation convenience and the fixing effect of the steel bar connecting sleeve can be improved through the design, and the loosening problem is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of steel bar connection sleeves, in particular to a high-strength straight threaded steel bar connection sleeve. Background Art

[0002] The rebar connecting sleeve is a mechanical connection among the rebar connection methods. It is suitable for connecting large-diameter rebars. It has the characteristics of energy saving and is not restricted by the composition and type of rebar. It uses international No. 45 steel and a special manufacturing process. It has high dimensional accuracy and reliable quality. It has three series, standard type, positive and negative thread type, and reducing type, and 52 varieties. It can meet the needs of connecting rebars of the same diameter, different diameters, and adjustable length and direction in the horizontal, vertical, and diagonal parts of the building structure.

[0003] At present, the main mechanical connection of building steel bars is the steel bar connection sleeve. This type of steel bar connection sleeve is a circular hollow structure with a thread inside the sleeve that engages with the end of the steel bar. This type of steel bar connection sleeve can meet the connection requirements of building steel bars. However, during the use of this type of steel bar connection sleeve, since the cross-sectional outer surface is circular and there is no wrench position on the cylindrical outer surface, it is difficult to tighten the steel bars into place when the steel bars are connected. At the same time, after the steel bars are installed and connected, they are only tightened by threads, which is easy to become loose due to vibration and impact during the connection, and the steel bars cannot be effectively tightened.

[0004] Therefore, it is particularly important to design a high-strength straight threaded steel bar connection sleeve to solve the above-mentioned defects. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model designs a high-strength straight threaded steel bar connecting sleeve, which aims to solve the technical problems in the prior art that the steel bar connecting sleeve has a circular cross-sectional outer surface and there is no wrench position on the cylindrical outer surface, making it difficult to tighten the steel bar into place, and the steel bar cannot be effectively tightened by tightening only by threads.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A high-strength straight threaded steel bar connecting sleeve comprises a sleeve body, the front and rear ends of the sleeve body are fixedly connected with an insert sleeve, the front and rear ends inside the sleeve body are provided with insert grooves adapted for use with the insert sleeve, two groups of the insert sleeves are fixedly connected to the sleeve body through a fixing mechanism, the inner sides of the two groups of the insert sleeves are threadedly connected with connecting steel bars, a first spring is movably installed inside the sleeve body, fastening blocks are slidably connected inside the sleeve body and at the front and rear ends of the first spring, the ends of the two groups of the insert sleeves that are away from each other are fixedly connected with a wrench holder, and the outer sides of the two groups of the insert sleeves are symmetrically rotatably connected with fastening handles.

[0008] As a preferred solution of the utility model, moving openings are provided at both ends of the inner part of the sleeve body, which are away from the two fastening blocks. Entrance openings are provided at one ends of the two insertion cylinders close to the fastening blocks, and the fastening blocks are in contact with the connecting steel bars.

[0009] As a preferred solution of the utility model, sealing rings are sleeved on the front and rear ends of the inner parts of the two insertion cylinders and on the outer sides of the connecting steel bars. Insertion guide grooves are provided on the sides of the two insertion cylinders away from each other.

[0010] As a preferred solution of the utility model, the fixing mechanism is slidably connected to a positioning column inside the sleeve body and above the insertion cylinder. A positioning hole adapted to the positioning column is provided on the outer side of the insertion cylinder. A positioning block is fixedly connected to the top end of the positioning column. A second spring is sleeved on the outer side of the positioning column. A pressing block is slidably connected to one end of the inner part of the sleeve body, which is away from the positioning column and away from the positioning block.

[0011] As a preferred solution of the utility model, a moving hole adapted to the positioning block is provided on the outer side of the sleeve body. A moving groove adapted to the pressing block is provided on the outer side of the sleeve body.

[0012] As a preferred solution of the utility model, the fastening handle is rotatably connected to the insertion cylinder through a rotating shaft. A convex block is fixedly connected to one end of the fastening handle inside the insertion cylinder. A clamping entrance is provided at a position corresponding to the convex block on the outer side of the insertion cylinder.

[0013] As a preferred solution of the utility model, a fixing pin is inserted at a position corresponding to the convex block on the outer side of the insertion cylinder. A pin hole adapted to the fixing pin is provided on the outer side of the insertion cylinder.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. In the utility model, through the combined design of the sleeve body, the insertion cylinder, the fixing mechanism and the wrench clamping position, first, the insertion cylinder is rotationally installed on the outer side of the connecting steel bar by screwing through the wrench clamping position. Subsequently, the pressing block is slid to release the restriction on the top of the positioning block. Under the action of the second spring, the positioning block is pushed into the inner side of the moving hole, so that the positioning column is moved out of the inner side of the positioning hole, thereby creating space to insert the insertion cylinder into the inner side of the insertion slot. When the insertion cylinder is inserted, then the pressing block is slid again to make the positioning block move downward again, and the positioning column is inserted into the positioning hole on the outer side of the insertion cylinder, thereby quickly fixing the insertion cylinder, and further improving the installation convenience.

[0016] 2. In the present utility model, through the cooperative design of the sleeve body, the insertion cylinder, the first spring, the fastening block and the fastening handle, the insertion cylinder is rotated by the wrench position to be threadedly installed outside the connecting steel bar, and then the fastening handle is rotated to turn the convex block into the inside of the card entrance, so as to firmly fix the connecting steel bar through the convex block, avoiding the problem of loosening. After the connecting steel bar is connected and fixed, under the action of the first spring, the fastening block is continuously pushed to move inside the moving port, so that the fastening block is inserted into the inside of the entrance, and the fastening block abuts against the connecting steel bar, further improving the fixing effect on the connecting steel bar. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is a cross-sectional view of the overall internal structure of the present utility model;

[0019] Figure 3 is Figure 2 an enlarged view of part A in

[0020] In the figure: 1. Sleeve body; 101. Moving port; 102. Entrance; 2. Insertion cylinder; 201. Sealing ring; 202. Insertion guide groove; 3. Insertion slot; 4. Fixing mechanism; 401. Positioning column; 402. Positioning hole; 403. Positioning block; 404. Second spring; 405. Pressing block; 406. Moving hole; 407. Moving groove; 5. Connecting steel bar; 6. First spring; 7. Fastening block; 8. Wrench position; 9. Fastening handle; 901. Rotating shaft; 902. Convex block; 903. Card entrance; 904. Fixed pin; 905. Pin hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0022] Embodiment:

[0023] Please refer to Figures 1-3 , the present utility model provides a technical solution:

[0024] A high-strength straight-thread steel bar connecting sleeve, comprising a sleeve body 1. Plug-in cylinders 2 are fixedly connected to both the front and rear ends of the sleeve body 1. Plug-in grooves 3 adapted to the plug-in cylinders 2 are provided at both the front and rear ends inside the sleeve body 1. The two groups of plug-in cylinders 2 are fixedly connected to the sleeve body 1 through fixing mechanisms 4. Connecting steel bars 5 are threadedly connected to the inner sides of the two groups of plug-in cylinders 2. A first spring 6 is movably installed inside the sleeve body 1. Fastening blocks 7 are slidably connected to both the front and rear ends of the first spring 6 inside the sleeve body 1. Wrench clamping positions 8 are fixedly connected to the ends of the two groups of plug-in cylinders 2 away from each other. Fastening handles 9 are symmetrically rotatably connected to the outer sides of the two groups of plug-in cylinders 2.

[0025] First, moving openings 101 are provided at both ends of the sleeve body 1 inside and away from the two fastening blocks 7. Inlet openings 102 are provided at the ends of the two groups of plug-in cylinders 2 close to the fastening blocks 7, and the fastening blocks 7 are in contact with the connecting steel bars 5. After connecting and fixing the connecting steel bars 5, the first spring 6 continuously pushes the fastening blocks 7 to move inside the moving openings 101, so that the fastening blocks 7 are inserted into the inlet openings 102, and the fastening blocks 7 abut against the connecting steel bars 5, further improving the fixing effect on the connecting steel bars 5.

[0026] Then, sealing rings 201 are sleeved on the outer sides of the connecting steel bars 5 at both the front and rear ends inside the two groups of plug-in cylinders 2. Insertion guide grooves 202 are provided on the sides of the two groups of plug-in cylinders 2 away from each other. After connecting and fixing the connecting steel bars 5, the sealing rings 201 can prevent water from entering the sleeve body 1. At the same time, when connecting the plug-in cylinders 2 and the connecting steel bars 5, the insertion guide grooves 202 facilitate the docking of the heads of the connecting steel bars 5 with the plug-in cylinders 2.

[0027] Secondly, the fixing mechanism 4 is slidably connected to the positioning column 401 inside the sleeve body 1 and located above the insertion cylinder 2. A positioning hole 402 adapted to the positioning column 401 is provided on the outer side of the insertion cylinder 2. The top end of the positioning column 401 is fixedly connected to a positioning block 403. A second spring 404 is sleeved on the outer side of the positioning column 401. A pressing block 405 is slidably connected to the inside of the sleeve body 1 at one end of the positioning block 403 away from the positioning column 401. An activity hole 406 adapted to the positioning block 403 is provided on the outer side of the sleeve body 1. A moving groove 407 adapted to the pressing block 405 is provided on the outer side of the sleeve body 1. The insertion cylinder 2 is threadedly installed on the outer side of the connecting steel bar 5 by rotating the insertion cylinder 2 through the wrench position 8. Subsequently, the pressing block 405 is slid to release the restriction on the top of the positioning block 403. Under the action of the second spring 404, the positioning block 403 is pushed into the inside of the activity hole 406, so that the positioning column 401 is removed from the inside of the positioning hole 402, thereby creating space to insert the insertion cylinder 2 into the inside of the insertion slot 3. After the insertion cylinder 2 is inserted, the pressing block 405 is slid again to make the positioning block 403 move downward again, and the positioning column 401 is inserted into the positioning hole 402 on the outer side of the insertion cylinder 2, so as to quickly fix the insertion cylinder 2, thereby improving the convenience of steel bar connection.

[0028] Finally, the fastening handle 9 is rotatably connected to the insertion cylinder 2 through a rotating shaft 901. A convex block 902 is fixedly connected to one end of the fastening handle 9 located inside the insertion cylinder 2. A card entrance 903 is provided at a position corresponding to the convex block 902 on the outer side of the insertion cylinder 2. A fixed pin 904 is inserted at a position corresponding to the convex block 902 on the outer side of the insertion cylinder 2. A pin hole 905 adapted to the fixed pin 904 is provided on the outer side of the insertion cylinder 2. When installing the insertion cylinder 2 on the outer side of the connecting steel bar 5, first pull out the fixed pin 904, and then rotate the fastening handle 9 to move the convex block 902 out of the inside of the card entrance 903, so that the connecting steel bar 5 can be inserted into the inside of the insertion cylinder 2. The insertion cylinder 2 is threadedly installed on the outer side of the connecting steel bar 5 by rotating the insertion cylinder 2 through the wrench position 8. Then rotate the fastening handle 9 to turn the convex block 902 into the inside of the card entrance 903, thereby tightly fixing the connecting steel bar 5 through the convex block 902 to avoid loosening problems. At the same time, the fixed pin 904 is inserted into the inside of the pin hole 905, and then the fastening handle 9 is fixed to prevent it from rotating, further ensuring the fixing effect on the connecting steel bar 5.

[0029] In this embodiment, the implementation scenario is specifically as follows: When butt-joining the connecting steel bar 5, first pull out the fixed pin 904, and then rotate the fastening handle 9 so that the convex block 902 moves out from the inside of the card entrance 903, enabling the connecting steel bar 5 to be inserted into the inside of the socket cylinder 2. Rotate the socket cylinder 2 through the wrench position 8 and threadedly install it on the outside of the connecting steel bar 5. Then rotate the fastening handle 9 to turn the convex block 902 into the inside of the card entrance 903, thereby tightly fixing the connecting steel bar 5 through the convex block 902 to avoid loosening problems. Subsequently, slide the pressing block 405 to release the restriction on the top of the positioning block 403, and under the action of the second spring 404, push the positioning block 403 into the inside of the moving hole 406, so that the positioning post 401 moves out from the inside of the positioning hole 402, thereby creating space to insert the socket cylinder 2 into the inside of the socket slot 3. When the socket cylinder 2 is inserted, then slide the pressing block 405 to make the positioning block 403 move downward again, and insert the positioning post 401 into the positioning hole 402 on the outside of the socket cylinder 2, thereby quickly fixing the socket cylinder 2. After connecting and fixing the connecting steel bar 5, under the action of the first spring 6, continuously push the fastening block 7 to move inside the moving port 101, so that the fastening block 7 is inserted into the entrance 102, and the fastening block 7 abuts against the connecting steel bar 5, further improving the fixing effect on the connecting steel bar 5. The entire operation process is simple and convenient. Compared with the existing steel bar connection sleeve, the present utility model can improve the installation convenience and fixing effect of the steel bar connection sleeve through the design, and avoid loosening problems.

[0030] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A high-strength straight thread reinforcing bar connecting sleeve, comprising a sleeve body (1), characterized in that: Both the front and rear ends of the sleeve body (1) are fixedly connected with insertion cylinders (2). Insertion slots (3) adapted to the insertion cylinders (2) are provided at both the front and rear ends inside the sleeve body (1). The two insertion cylinders (2) are fixedly connected to the sleeve body (1) through fixing mechanisms (4). Connecting steel bars (5) are threadedly connected to the inner sides of the two insertion cylinders (2). A first spring (6) is movably installed inside the sleeve body (1). Fastening blocks (7) are slidably connected to both the front and rear ends of the first spring (6) inside the sleeve body (1). Wrench positions (8) are fixedly connected to the ends of the two insertion cylinders (2) away from each other. Fastening handles (9) are symmetrically rotatably connected to the outer sides of the two insertion cylinders (2).

2. The high-strength straight-thread steel bar connecting sleeve according to claim 1, wherein: Moving openings (101) are provided at both ends inside the sleeve body (1) away from the two fastening blocks (7). Entrance openings (102) are provided at the ends of the two insertion cylinders (2) close to the fastening blocks (7). And the fastening blocks (7) are in contact with the connecting steel bars (5).

3. A high-strength straight thread reinforcing bar connecting sleeve according to claim 1, characterized in that: Sealing rings (201) are sleeved on the outer sides of the front and rear ends inside the two insertion cylinders (2) and outside the connecting steel bars (5). Insertion guide grooves (202) are provided on the sides of the two insertion cylinders (2) away from each other.

4. A high-strength straight thread reinforcing bar connecting sleeve according to claim 1, characterized in that: The fixing mechanism (4) is slidably connected to a positioning post (401) inside the sleeve body (1) and above the insertion cylinder (2). A positioning hole (402) adapted to the positioning post (401) is provided on the outer side of the insertion cylinder (2). A positioning block (403) is fixedly connected to the top end of the positioning post (401). A second spring (404) is sleeved on the outer side of the positioning post (401). A pressing block (405) is slidably connected to the end of the sleeve body (1) away from the positioning post (401) and where the positioning block (403) is located.

5. A high-strength straight thread reinforcing bar connecting sleeve according to claim 4, characterized in that: An activity hole (406) adapted to the positioning block (403) is provided on the outer side of the sleeve body (1). A moving groove (407) adapted to the pressing block (405) is provided on the outer side of the sleeve body (1).

6. The high-strength straight thread reinforcing bar connecting sleeve according to claim 1, wherein: The fastening handle (9) is rotatably connected to the insertion cylinder (2) through a rotating shaft (901). A convex block (902) is fixedly connected to the end of the fastening handle (9) inside the insertion cylinder (2). A card entrance (903) is provided at the position on the outer side of the insertion cylinder (2) corresponding to the convex block (902).

7. A high-strength straight thread reinforcing bar connecting sleeve according to claim 6, characterized in that: A fixing pin (904) is inserted at the position on the outer side of the insertion cylinder (2) corresponding to the convex block (902). A pin hole (905) adapted to the fixing pin (904) is provided on the outer side of the insertion cylinder (2).

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