A clamping piece extrusion type steel bar connecting mechanism facilitating construction
The clamp-type rebar connection mechanism solves the problems of pre-connection and thread processing required for rebar connections in existing technologies, achieving convenient construction and strength preservation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU DINGCHENG CABLE TECH CO LTD
- Filing Date
- 2025-08-14
- Publication Date
- 2026-08-04
AI Technical Summary
Existing rebar connection methods require pre-connection before construction, which leads to problems such as excessive overall length or the need to process threads at the ends of the rebars, affecting their strength.
The steel bar connection mechanism adopts a clamp-type extrusion type, which connects the extrusion sleeve and the clamp-type sleeve. The reinforcement structure and anti-detachment structure enhance the friction and connection firmness, avoiding pre-connection and thread processing.
This facilitates connection during construction, avoids excessive overall length of steel bars and strength loss, and improves the strength and convenience of the connection.
Smart Images
Figure CN224591673U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to rebar connection, specifically a wedge-type rebar connection mechanism that is easy to construct. Background Technology
[0002] Rebar connection is a common operation in building construction. Existing rebar connections basically include threaded connection or extrusion sleeve connection. Extrusion sleeve connection involves inserting two rebars into an extrusion sleeve and then using an extrusion device to extrude the sleeve to connect the sleeve and the rebars. However, this method requires the two rebars to be connected before construction, but the overall length of the connected rebars is too long, which causes inconvenience to construction. Threaded connections involve machining internal threads inside a sleeve and then machining external threads at the ends of the reinforcing bars to match the internal threads. The connection is then made via these threads. However, this method results in a smaller diameter at the threaded end of the reinforcing bar, which affects its strength. Therefore, a wedge-type compression rebar connection mechanism that is easier to construct is proposed. Utility Model Content
[0003] The purpose of this invention is to solve the above problems by proposing a wedge-type compression rebar connection mechanism that is easy to construct.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a clamp-type rebar connection mechanism that is easy to construct. It is characterized by comprising a compression sleeve connected to one end of the rebar, a clamp-type sleeve with one end connected to the compression sleeve and the other end connected to one end of another rebar to connect adjacent rebars, and a clamp disposed within the clamp-type sleeve for clamping the rebar. The clamp is composed of several clamping pieces. One end of the compression sleeve is provided with a socket for inserting the rebar, and the other end is provided with an insertion end that is inserted into the clamp-type sleeve and connected to it.
[0005] A further preferred embodiment includes a reinforcing structure disposed within the socket to enhance the friction between the reinforcing bar and the socket, thereby improving the connection strength between the reinforcing bar and the extrusion sleeve.
[0006] More preferably, the reinforcing structure is a thread, a retaining tooth, or a retaining platform disposed within the socket.
[0007] Further preferably, it also includes an external thread provided on the insertion end and an internal thread provided on one end of the clamp sleeve that mates with the external thread.
[0008] A further preferred embodiment includes an insertion port at the other end of the clamp-type sleeve for inserting reinforcing bars, and a tapered hole inside the clamp-type sleeve that communicates with the insertion port and is adapted to the clamp.
[0009] A further preferred embodiment includes a spring installed within the clip-type sleeve and positioned between the clip and the insertion end.
[0010] A further preferred embodiment includes an anti-detachment structure disposed on the inner wall of the jacket to enhance the connection between the jacket and the reinforcing bar and prevent the reinforcing bar from detaching from the jacket.
[0011] More preferably, the anti-detachment structure can be a thread, a tooth, or a platform provided on the inner wall of the jacket.
[0012] A further preferred embodiment includes a guide surface provided at one end of the sleeve to guide the insertion of the reinforcing bar into the sleeve, wherein the inner diameter of the sleeve is smaller than the diameter of the reinforcing bar.
[0013] The beneficial effects of this utility model are as follows: With the setting of this device, before connecting the steel bars, one end of the steel bar is inserted into the extrusion sleeve and connected to the extrusion sleeve. Then, the clamp sleeve is connected to the extrusion sleeve. When connecting the steel bars during the subsequent construction process, it is only necessary to insert the other steel bar into the clamp sleeve and connect it to the clamp sleeve to complete the connection of the two steel bars. It is not necessary to connect multiple steel bars before construction, which facilitates construction. At the same time, it is not necessary to process threads on the steel bars, which would affect the strength of the steel bar connection. By setting a reinforcing structure inside the socket, the reinforcing bar is pressed tightly after the extrusion sleeve is compressed, which enhances the friction between the reinforcing bar and the socket and the connection firmness, thus preventing detachment. By setting an anti-detachment structure on the inner wall of the jacket, the connection between the jacket and the steel bar is strengthened when the jacket clamps the steel bar, preventing the steel bar from detaching from the jacket. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the extrusion sleeve in this utility model; Figure 4 This is a schematic diagram of the structure of the clamp-type sleeve in this utility model; Figure 5 This is a schematic diagram of the jacket structure in this utility model.
[0015] Legend: 1. Extrusion sleeve; 11. Socket; 12. Insertion end; 13. External thread; 2. Clamping sleeve; 21. Internal thread; 22. Insertion port; 23. Tapered hole; 3. Jacket; 31. Clamping piece; 32. Guide surface; 4. Reinforcing structure; 5. Spring. Detailed Implementation
[0016] The following description, in conjunction with the accompanying drawings, further illustrates the construction-friendly clamp-type rebar connection mechanism of this utility model.
[0017] It should be noted that all directional indicators such as up, down, left, right, front, back, etc. in the embodiments of this utility model are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicator will also change accordingly.
[0018] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly; for example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can also mean a mechanical connection, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0019] See Figures 1-5 As shown, a construction-friendly clamp-type rebar connection mechanism is characterized by comprising a clamping sleeve 1 connected to one end of a rebar, a clamping sleeve 2 connected to the clamping sleeve 1 at one end and to one end of another rebar at the other end to connect adjacent rebars, and a clamping sleeve 3 disposed within the clamping sleeve 2 for clamping the rebar. The clamping sleeve 3 is composed of a plurality of clamping pieces 31. One end of the clamping sleeve 1 is provided with a socket 11 for inserting the rebar, and the other end is provided with an insertion end 12 that is inserted into the clamping sleeve 2 and connected to the clamping sleeve 2. With this device, before connecting the reinforcing bars, one end of the reinforcing bar is inserted into the extrusion sleeve 1 and connected to the extrusion sleeve 1. Then, the clamp sleeve 2 is connected to the extrusion sleeve 1. During subsequent construction, when connecting the reinforcing bars, it is only necessary to insert the other reinforcing bar into the clamp sleeve 2 and connect it to the clamp sleeve 2 to complete the connection of the two reinforcing bars. It is not necessary to connect multiple reinforcing bars before construction, which facilitates construction. At the same time, it is not necessary to process threads on the reinforcing bars, which would affect the strength of the reinforcing bar connection.
[0020] In one embodiment, it further includes a reinforcing structure 4 disposed within the socket 11 to enhance the friction between the reinforcing bar and the socket 11, thereby improving the connection strength between the reinforcing bar and the extrusion sleeve 1; the reinforcing structure 4 is a thread, a tooth, or a platform disposed within the socket 11. By setting a reinforcing structure 4 inside the socket 11, the reinforcing bar is pressed after the extrusion sleeve 1 is compressed, thereby increasing the friction and connection between the reinforcing bar and the socket 11 and preventing it from coming off.
[0021] In one embodiment, it further includes an external thread 13 provided on the insertion end 12 and an internal thread 21 provided at one end of the clamp sleeve 2 that mates with the external thread 13; The insertion end 12 and the clamp sleeve 2 are connected by external thread 13 and internal thread 21.
[0022] In one embodiment, it also includes an insertion port 22 provided at the other end of the clamp sleeve 2 for inserting reinforcing bars, and a tapered hole 23 provided in the clamp sleeve 2 that communicates with the insertion port 22 and is adapted to the clamp 3. When the reinforcing bar is connected to the clamp sleeve 2, one end of the reinforcing bar is inserted into the clamp sleeve 2 through the insertion port 22. The tapered hole 23 is set to fit the clamp 3. At the same time, when the reinforcing bar is inserted into the clamp 3 and applies an outward compressive force to the clamps 31, the tapered hole 23 abuts against the outside of the clamps 31. When the reinforcing bar drives the clamps 31 to move outward through friction, the tapered hole 23 applies an inward compressive force to the clamps 31, thereby driving the clamps 31 to clamp the reinforcing bar.
[0023] In one embodiment, a spring 5 is also included, which is installed inside the clamping sleeve 2 and located between the clamping sleeve 3 and the insertion end 12. With the setting of the spring 5, after the insertion end 12 of the compression sleeve 1 is installed inside the clamping sleeve 2 by threads, the spring 5 is compressed. After being compressed, the spring 5 contracts and compresses the clamping sleeve 3, so that the outer side of the clamping sleeve 3 fits against the tapered hole 23.
[0024] In one embodiment, it further includes an anti-detachment structure disposed on the inner wall of the sleeve 3 to enhance the connection between the sleeve 3 and the reinforcing bar and prevent the reinforcing bar from detaching from the sleeve 3. The anti-detachment structure can be a thread, a tooth, or a platform set on the inner wall of the jacket 3; By setting an anti-detachment structure on the inner wall of the sleeve 3, the connection between the sleeve 3 and the steel bar is strengthened when the steel bar is clamped by the sleeve 3, thus preventing the steel bar from detaching from the sleeve 3.
[0025] In one embodiment, the sleeve 3 also includes a guide surface 32 provided at one end of the sleeve 3 to guide the insertion of the reinforcing bar into the sleeve 3, wherein the inner diameter of the sleeve 3 is smaller than the diameter of the reinforcing bar. By making the inner diameter of the sleeve 3 smaller than the diameter of the reinforcing bar, an outward squeezing force is formed on several clamping pieces 31 after the reinforcing bar is inserted into the sleeve 3. By setting a guide surface 32 at one end of the sleeve 3, the reinforcing bar is guided into the sleeve 3, thus avoiding the reinforcing bar being unable to be inserted into the sleeve 3 due to the inner diameter of the sleeve 3 being smaller than the diameter of the reinforcing bar.
[0026] In use, this utility model is as follows: First, one end of one of the reinforcing bars is inserted into the socket 11 of the extrusion sleeve 1. Then, the outside of the socket 11 of the extrusion sleeve 1 is extruded by an extrusion device, causing the extrusion sleeve 1 to deform and press tightly against the reinforcing bar. Then, several clamping plates 31 and springs 5 are installed into the clamping sleeve 2. Finally, the clamping sleeve 2 containing the clamping plates 3 and springs 5 is threadedly connected to the insertion end 12 of the extrusion sleeve 1. When connecting another steel bar to the first steel bar during subsequent construction, simply insert one end of the second steel bar into the clamp sleeve 2 through the insertion port 22. During insertion, as the steel bar is inserted into the clamp 3 along the guide surface 32, it exerts an outward pressure on several clamp pieces 31. After the steel bar is inserted into place, it is pulled back to a certain extent. When the steel bar is pulled back, the restoring force of the spring 5 and the friction between the steel bar and the clamp 3 drive several clamp pieces 31 to move outward. During the movement, several clamp pieces 31 exert an inward pressure on the clamp pieces 31 through the conical hole 23 of the clamp sleeve 2, causing several clamp pieces 31 to clamp the steel bar. At this time, the connection of the two steel bars is completed.
[0027] The scope of protection of this utility model is not limited to the above embodiments and their variations. Conventional modifications and substitutions made by those skilled in the art based on the content of these embodiments are all within the scope of protection of this utility model.
Claims
1. A constructionally convenient clamping extrusion type reinforcing bar connecting mechanism, characterized in that It includes a compression sleeve (1) connected to one end of a reinforcing bar, a clamp sleeve (2) connected to the compression sleeve (1) at one end and connected to the other end of another reinforcing bar at the other end to connect adjacent reinforcing bars, and a clamp (3) set in the clamp sleeve (2) for clamping the reinforcing bar. The clamp (3) is composed of several clamps (31). One end of the compression sleeve (1) is provided with a socket (11) for inserting the reinforcing bar, and the other end is provided with an insertion end (12) that is inserted into the clamp sleeve (2) and connected to the clamp sleeve (2).
2. The easy-to-construct clamp-type rebar connection mechanism according to claim 1, characterized in that: It also includes a reinforcement structure (4) installed inside the socket (11) to enhance the friction between the reinforcing bar and the socket (11) and improve the connection strength between the reinforcing bar and the extrusion sleeve (1).
3. The easy-to-construct clamp-type rebar connection mechanism according to claim 2, characterized in that: The reinforcing structure (4) is a thread, a tooth, or a platform provided in the socket (11).
4. The easy-to-construct clamp-type rebar connection mechanism according to claim 1, characterized in that: It also includes an external thread (13) provided on the insertion end (12) and an internal thread (21) provided on one end of the clamp sleeve (2) that mates with the external thread (13).
5. The easy-to-construct clamp-type rebar connection mechanism according to claim 4, characterized in that: It also includes an insertion port (22) provided at the other end of the clamp sleeve (2) for inserting reinforcing bars, and a tapered hole (23) provided inside the clamp sleeve (2) that communicates with the insertion port (22) and is adapted to the clamp (3).
6. A clamp-press type reinforcing bar coupling mechanism according to claim 5, characterized in that: It also includes a spring (5) installed inside the clip sleeve (2) and located between the clip (3) and the insertion end (12).
7. The easy-to-construct clamp-type rebar connection mechanism according to claim 5, characterized in that: It also includes an anti-detachment structure set on the inner wall of the sleeve (3) to enhance the connection between the sleeve (3) and the reinforcing bar and prevent the reinforcing bar from detaching from the sleeve (3).
8. The easy-to-construct clamp-type rebar connection mechanism according to claim 7, characterized in that: The anti-detachment structure can be a thread, a tooth, or a platform set on the inner wall of the sleeve (3).
9. A wedge-type rebar connection mechanism for easy construction according to claim 5, characterized in that: It also includes a guide surface (32) set at one end of the sleeve (3) to guide the steel bar to be inserted into the sleeve (3), and the inner diameter of the sleeve (3) is smaller than the diameter of the steel bar.