Rebar joint protection structure

Abstract

The application discloses a reinforcing steel bar joint protection structure and belongs to the technical field of reinforcing steel bar joint protection structures. The reinforcing steel bar joint protection structure comprises a joint protection bin, and a limiting protection block is arranged in the joint protection bin through a clamping assembly. The limiting protection block is arranged in an annular array and is in surface contact to replace the linear contact of a traditional bolt. The taper structure of the limiting protection block is matched with the inclined surface of a protection groove to realize self-centering clamping. An inclined surface sliding pair between a connecting ring and the protection groove converts an axial driving force into a radial clamping force. The taper structure of the limiting protection block forms a gradual clamping curved surface, which is suitable for reinforcing steel bar joints with different diameters and disperses contact stress through multi-arc surfaces to avoid damaging the surface of the reinforcing steel bar. The angle of the inclined surface of the protection groove is accurately matched with the taper of the limiting protection block, so that no axial component force is generated in the clamping process, the reinforcing steel bar joint is prevented from micro-slipping due to the axial thrust, and the construction safety and the joint quality are remarkably improved.

Description

Technical Field

[0001] This application relates to the field of steel bar joint protection structure technology, and more specifically, to a steel bar joint protection structure. Background Technology

[0002] Reinforcing steel bars are a type of construction material commonly used in the construction industry. During the use of reinforcing steel bars, it is often necessary to protect the joints of the reinforcing steel bars to prevent damage or rust at the ends.

[0003] Existing technology publication CN218234419U discloses a rebar joint protection device. This device comprises a main body mechanism, a tightening mechanism, and a connecting mechanism. The tightening mechanism is located at the upper end of the main body mechanism, and the connecting mechanism is located at the left end of the main body mechanism. The main body mechanism includes a sleeve, a positioning plate, a locking block, and a fixing block. The positioning plate is fixedly installed at the right end of the sleeve, the locking block is fixedly installed at the left end of the positioning plate, and the fixing block is fixedly installed at the left end of the locking block. The fixing block passes through and connects to the locking block and the positioning plate. The tightening mechanism includes a top plate, a center plate, a rotating rod, a pull handle, an access block, a pressing rod, and a fastening thread. The top plate is fixedly installed at the upper end of the sleeve, the center plate is fixedly installed at the upper end of the top plate, and the rotating rod is fixedly installed at the upper end of the center plate. The center plate allows for tightening of the rebar joint. When securing the joint, the clamping effect of the joint protection can be flexibly adjusted, greatly enhancing the protection efficiency of the rebar joint. The handle is fixedly installed at the upper end of the rotating rod, and the access block is fixedly installed at the lower end of the top plate. The handle makes the connection process at the rebar joint more adjustable, greatly enhancing the flexibility of rebar joint protection and effectively improving the protection effect. The access block extends to the inner end of the sleeve, the pressure rod is fixedly installed at the lower end of the access block, and the fastening thread is fixedly installed at the outer end of the pressure rod. The pressure rod greatly improves the stability during the rebar joint protection process, enabling better clamping and fixing of the rebar joint, thereby greatly enhancing the protection efficiency of the rebar joint and better preventing the rebar joint protection from falling off.

[0004] Although the existing technical solutions described above can achieve the relevant beneficial effects through the existing technical structure, they still have the following defects: When the rebar joint protection structure is in use, the rebar and protective shell are limited by using bolts on one side. During use, the bolts rotate and rub against the rebar, which will damage the outer wall of the rebar and affect the quality of the rebar joint.

[0005] In view of this, we propose a protective structure for steel bar joints. Utility Model Content

[0006] 1. Technical problems to be solved

[0007] The purpose of this application is to provide a rebar joint protection structure that solves the technical problem in the above-mentioned rebar joint protection structure. When using a bolt on one side to limit the rebar and the protective shell, the bolt rotates and rubs against the rebar, which damages the outer wall of the rebar and affects the quality of the rebar joint. This application achieves the desired technical effect.

[0008] 2. Technical Solution

[0009] This application provides a protective structure for rebar joints, including...

[0010] Connector protection compartment;

[0011] A limit protection block is provided inside the joint protection chamber via a clamping assembly.

[0012] As an optional solution to the technical solution of this application, multiple limit protection blocks are arranged in a ring at equal intervals, and the multiple limit protection blocks are connected and fixed by a connecting ring, which is slidably disposed inside the protection groove inside the limit protection block.

[0013] As an optional solution to the technical solution of this application, a plurality of lead screws are rotatably arranged inside the protective groove, and one end of the lead screw is threadedly connected to a threaded hole opened on the outer wall of the connecting ring.

[0014] The threaded holes and lead screws are arranged in a ring with equal spacing.

[0015] As an optional solution to the technical solution of this application, the outer wall of the joint protection chamber is provided with an annular groove, a ring block is rotatably arranged inside the annular groove, and a driving ring is fixedly arranged on the outer wall of the ring block;

[0016] An internal gear is fixedly installed inside the ring block, and a transmission gear is meshed with the inner wall of the internal gear. The transmission gear is coaxially connected and fixed with the lead screw.

[0017] As an optional solution to the technical solution of this application, the plurality of the limiting protection blocks are arranged in a conical structure;

[0018] The protective groove has a sloping cross-section.

[0019] By adopting the above technical solution, the limiting protective blocks in a ring array replace the line contact of traditional bolts with surface contact. Their conical structure and the inclined surface of the protective groove cooperate to achieve self-centering clamping, avoiding rebar indentation caused by single-point overload. The planetary transmission system composed of internal gears and transmission gears enables multiple lead screws to rotate synchronously at the same speed, ensuring that the radial displacement of the limiting protective blocks is completely consistent and preventing rebar bending caused by clamping force deviation. The inclined sliding pair between the connecting ring and the protective groove converts the axial driving force into radial clamping force. Its friction angle design gives the mechanism a self-locking function, maintaining the clamping state without continuous external force. The conical structure of the limiting protective block forms a progressive clamping surface, which can adapt to rebar joints of different diameters and disperses contact stress through multiple arc surfaces to avoid damage to the rebar surface. The inclined angle of the protective groove and the taper of the limiting protective block are precisely matched to ensure that no axial component force is generated during clamping, preventing the rebar joint from micro-slippage due to axial thrust, significantly improving construction safety and joint quality.

[0020] 3. Beneficial effects

[0021] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0022] This application utilizes a ring array of limiting protective blocks to replace the line contact of traditional bolts through surface contact. The conical structure of these blocks, in conjunction with the inclined surface of the protective groove, achieves self-centering clamping, preventing rebar indentation caused by single-point overload. A planetary transmission system, consisting of internal and transmission gears, ensures that multiple lead screws rotate synchronously at the same speed, guaranteeing perfectly consistent radial displacement of the limiting protective blocks and preventing rebar bending caused by skewed clamping force. The inclined sliding pair between the connecting ring and the protective groove converts axial driving force into radial clamping force. Its friction angle design provides a self-locking function, maintaining clamping without continuous external force. The conical structure of the limiting protective blocks forms a progressive clamping surface, accommodating rebar joints of different diameters and dispersing contact stress through multiple arc surfaces, preventing damage to the rebar surface. The precise match between the inclined angle of the protective groove and the taper of the limiting protective blocks ensures no axial force is generated during clamping, preventing micro-slippage of the rebar joint due to axial thrust, significantly improving construction safety and joint quality. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the rebar joint protection structure disclosed in a preferred embodiment of this application;

[0024] Figure 2 This is a schematic diagram of the overall structure of the rebar joint protection structure disclosed in a preferred embodiment of this application;

[0025] Figure 3 This is a schematic diagram of the disassembled structure of the clamping assembly of the rebar joint protection structure disclosed in a preferred embodiment of this application;

[0026] The following are the labels in the diagram: 1. Connector protection chamber; 11. Connecting ring; 12. Protective groove; 2. Limiting protection block; 21. Threaded hole; 22. Lead screw; 201. Ring groove; 202. Ring block; 203. Drive ring; 204. Internal gear; 205. Transmission gear. Detailed Implementation

[0027] The present application will be further described in detail below with reference to the accompanying drawings.

[0028] Reference Figures 1-3 This application provides a rebar joint protection structure, including a joint protection chamber 1;

[0029] Limit protection block 2 is installed inside the joint protection chamber 1 via a clamping assembly.

[0030] Multiple limit protection blocks 2 are arranged in a ring at equal intervals. The multiple limit protection blocks 2 are connected and fixed by a connecting ring 11. The connecting ring 11 is slidably disposed inside the protection groove 12 inside the limit protection block 2.

[0031] Multiple lead screws 22 are rotatably installed inside the protective groove 12, and one end of the lead screw 22 is threadedly connected to the threaded hole 21 opened on the outer wall of the connecting ring 11.

[0032] The threaded hole 21 and the lead screw 22 are arranged in a ring with equal spacing.

[0033] The outer wall of the joint protection chamber 1 is provided with an annular groove 201, and an annular block 202 is rotatably arranged inside the annular groove 201. A drive ring 203 is fixedly arranged on the outer wall of the annular block 202.

[0034] An internal gear 204 is fixedly installed inside the ring block 202. A transmission gear 205 is meshed with the inner wall of the internal gear 204. The transmission gear 205 is coaxially connected and fixed with the lead screw 22.

[0035] Multiple limit protection blocks 2 are arranged in a conical structure;

[0036] The protective groove 12 has a sloping cross-section.

[0037] By setting up a ring array of limiting protection blocks 2, the surface contact replaces the line contact of traditional bolts. Its conical structure cooperates with the inclined surface of the protective groove 12 to achieve self-centering clamping, avoiding rebar indentation caused by single-point overload. The planetary transmission system composed of internal gear 204 and transmission gear 205 enables multiple lead screws 22 to rotate synchronously at the same speed, ensuring that the radial displacement of the limiting protection blocks 2 is completely consistent, preventing rebar bending caused by clamping force deviation. The inclined sliding pair between the connecting ring 11 and the protective groove 12 converts the axial driving force into radial clamping force. Its friction angle design gives the mechanism a self-locking function, which can maintain the clamping state without continuously applying external force. The conical structure of the limiting protection blocks 2 forms a progressive clamping surface, which can adapt to rebar joints of different diameters and disperse contact stress through multiple arc surfaces to avoid damage to the rebar surface. The inclined angle of the protective groove 12 is precisely matched with the taper of the limiting protection blocks 2 to ensure that no axial component force is generated during clamping, preventing the rebar joint from micro-slippage due to axial thrust, significantly improving construction safety and joint quality.

[0038] Working principle: During use, the operator places the rebar joint inside the joint protection chamber 1. The rotating drive ring 203 drives the ring block 202 to rotate within the ring groove 201. The internal gear 204 inside the ring block 202 rotates synchronously and drives the transmission gear 205 meshing with it. The transmission gear 205 drives the lead screw 22 to rotate within the protection groove 12. The lead screw 22 forms a helical transmission with the connecting ring 11 through the threaded hole 21, pushing the connecting ring 11 to slide along the inclined structure of the protection groove 12. Due to the inclined design of the cross section of the protection groove 12, the axial movement of the connecting ring 11 is converted into the radial contraction of the limiting protection block 2. Multiple limiting protection blocks 2 are converging towards the center in a conical structure. Their inner walls form a surface contact with the outer wall of the rebar joint. The axial clamping force is uniformly converted into radial constraint force through the equally spaced clamping points in a ring. The thread self-locking characteristic of the lead screw 22 and the threaded hole 21 maintains the fixed position of the limiting protection block 2. The rebar joint is completely wrapped in the protective cavity composed of the limiting protection blocks 2.

Claims

1. A protective structure for steel bar joints, characterized in that: Include: Connector protection chamber (1); Limiting protection block (2), which is set inside the joint protection chamber (1) by a clamping assembly.

2. The rebar joint protection structure according to claim 1, characterized in that: The limiting protection blocks (2) are arranged in a ring with equal spacing. The multiple limiting protection blocks (2) are connected and fixed by a connecting ring (11). The connecting ring (11) is slidably disposed inside the protection groove (12) inside the limiting protection block (2).

3. The rebar joint protection structure according to claim 2, characterized in that: The protective groove (12) is rotatably provided with multiple lead screws (22), one end of which is threadedly connected to the threaded hole (21) opened on the outer wall of the connecting ring (11); The threaded hole (21) and the lead screw (22) are arranged in a ring with equal spacing.

4. The rebar joint protection structure according to claim 3, characterized in that: The outer wall of the joint protection chamber (1) is provided with an annular groove (201), and an annular block (202) is rotatably arranged inside the annular groove (201). A driving ring (203) is fixedly arranged on the outer wall of the annular block (202). An internal gear (204) is fixedly installed inside the ring block (202), and a transmission gear (205) is meshed with the inner wall of the internal gear (204). The transmission gear (205) is coaxially connected and fixed with the lead screw (22).

5. The rebar joint protection structure according to claim 4, characterized in that: The plurality of the limiting protection blocks (2) are arranged in a conical structure; The protective groove (12) has a sloping cross-section.

Images