A reinforcing bar connecting sleeve and method of installation

Abstract

This application relates to a rebar connecting sleeve and its installation method, belonging to the field of rebar connection technology. It includes two sets of outer sleeves, a rotating disk rotatably mounted at the ends of the two sets of outer sleeves, and an inner sleeve installed inside the outer sleeves for inserting the ends of the rebars. The outer sleeves are provided with a pressing component for fixing the rebars and a locking component for locking the position of the pressing component. A pushing disk is slidably installed inside the outer sleeves. This application, by setting up a locking component, a toothed disc, a toothed ring, and a rotating disk, moves the threaded block of the locking component along the axis of the outer sleeve by rotating it. The pushing component keeps the toothed disc engaged with the toothed ring on one side of the threaded block, facilitating the rotation of the rotating disk through the toothed ring. Because the toothed discs and toothed rings on both sides are engaged, the rotating disk after engagement allows for synchronous locking or disassembly of the components on both sides, thus improving the efficiency of installing and disassembling the rebars in the connecting sleeve to a certain extent.

Description

Technical Field

[0001] This application relates to the field of rebar connection technology, and in particular to a rebar connection sleeve and its installation method. Background Technology

[0002] In fields such as construction engineering, steel bar connection technology is of paramount importance, as it directly relates to the stability and safety of building structures. With the continuous development of the construction industry, the requirements for the quality and efficiency of steel bar connections are becoming increasingly stringent. High-quality steel bar connections can ensure that building structures maintain good performance when subjected to various loads, reducing safety hazards caused by weak connections. Efficient steel bar connection methods can shorten the construction cycle, reduce construction costs, and improve the economic benefits of the entire construction project. Therefore, continuously improving and innovating steel bar connection technology has always been a key research direction in the construction field.

[0003] Currently, two common methods for connecting reinforcing bars are welding and mechanical connection. Welding connection mainly uses methods such as arc welding and flash butt welding to fuse the ends of two reinforcing bars together through high temperature, thereby achieving the connection of the reinforcing bars. Mechanical connection uses connecting parts such as sleeves and bolts to connect two reinforcing bars. For example, the common straight thread sleeve connection is to process threads on the end of the reinforcing bar and then screw it to a sleeve with internal threads. There is also a tapered thread sleeve connection, which processes the end of the reinforcing bar into a tapered thread and then connects it with a corresponding tapered thread sleeve.

[0004] Regarding the aforementioned technologies, the inventors believe that when using sleeves to connect reinforcing bars in some temporary structures, it is often necessary to disassemble or adjust the reinforcing bars. However, the steps for installing or disassembling the reinforcing bars for adjustment are complex, resulting in low efficiency in disassembling and adjusting the reinforcing bars. Summary of the Invention

[0005] To address the problem of low efficiency in rebar disassembly and adjustment due to complex disassembly or installation steps, this application provides a rebar connecting sleeve and its installation method.

[0006] The technical solution provided in this application for a rebar connecting sleeve and its installation method is as follows: A rebar connecting sleeve includes two sets of outer sleeves, a rotating disk rotatably mounted on the ends of the two sets of outer sleeves, and an inner sleeve installed inside the outer sleeves for inserting the ends of the rebars. The outer sleeves are provided with a pressing component for fixing the rebars and a locking component for locking the position of the pressing component. A pushing disk is slidably mounted inside the outer sleeves. A pushing rod is mounted on the side of the pushing disk away from the rotating disk. A driving component for driving the pushing disk is provided on one side of the rotating disk. A geared disk is slidably mounted on one side of the rotating disk. A pushing assembly for providing thrust to the geared disk away from the rotating disk is provided between the geared disk and the rotating disk. A geared ring is provided on the side of the locking component near the rotating disk for cooperating with the geared disk to drive the rotating disk to rotate.

[0007] By adopting the above technical solution, two sets of outer sleeves are set to accommodate two steel bars to be connected. The ends of the steel bars are inserted into the inner sleeves for initial positioning. The rotating disk can drive the driving component to move the push disk, which facilitates the insertion of the steel bars into the rubber gaskets of the inner sleeves for positioning and buffering. The pressing component firmly fixes the steel bars, and the locking component locks the position of the pressing component to ensure the stability of the steel bar connection. The pushing component keeps the toothed disk and the toothed ring engaged, which facilitates the rotation of the rotating disk through the toothed ring. The engaged rotating disk enables the synchronous locking or disassembly of the components on both sides, improving the efficiency of steel bar installation and disassembly. At the same time, the rotating disk drives the push disk to move. When disassembling the steel bars, the push disk moves and pushes the steel bars out of the inner sleeve through the push rod for easy repositioning or removal of the steel bars.

[0008] Optionally, the locking component includes a threaded section disposed on the outside of the outer sleeve, a threaded block for engaging with the threaded section and sliding on the outside of the outer sleeve, and the toothed ring is mounted on the threaded block near the rotating disk.

[0009] By adopting the above technical solution, the locking component is limited, and the threaded block and threaded segment cooperate to allow the threaded block to slide along the outer side of the outer sleeve, which facilitates the control of the extrusion cylinder's extrusion of the wedge block, thereby achieving the extrusion and fixation of the reinforcing bar. At the same time, the self-locking property of the threaded block and threaded segment is used to improve the stability of the extrusion cylinder when extruding the wedge block.

[0010] Optionally, the extrusion component includes four sets of mounting holes disposed on the outside of the outer sleeve, an extrusion cylinder fixedly installed on the side of the threaded block away from the rotating disk, and a wedge block slidably installed inside the mounting holes for extruding the reinforcing bars.

[0011] By adopting the above technical solution, limiting the extrusion components and their quantity, providing installation positions for the wedge blocks by setting four sets of mounting holes, and applying extrusion to the wedge blocks by moving the extrusion cylinder through the threaded block, the wedge blocks can extrude extrusion onto the reinforcing bars, thereby fixing the reinforcing bars.

[0012] Optionally, the driving component includes a driving screw fixedly mounted on the end face of the rotating disk and a lead screw nut mounted inside the push disk and used for threaded engagement with the driving screw.

[0013] By adopting the above technical solution, the driving component is limited, and the drive screw and lead screw nut are threaded together. When the rotating disk rotates, the rotational motion is converted into the linear motion of the pushing disk, so that the pushing disk moves along the axis of the outer sleeve. The pushing rod on the pushing disk exits or extends into the inner sleeve, which facilitates the further insertion of the two steel bars into the inner sleeve or the pushing of the steel bars out of the inner sleeve.

[0014] Optionally, both sides of the push plate are provided with limiting rods for limiting the rotation of the push plate, and the ends of the limiting rods are equipped with sliding blocks. The inner wall of the outer sleeve is provided with a sliding groove for the movement of the sliding blocks.

[0015] By adopting the above technical solution, the rotation of the push plate can be restricted by the setting of the limiting rod and the sliding block in conjunction with the sliding groove on the inner wall of the outer sleeve, so that the push plate can only move along the axial direction of the outer sleeve, thereby improving the stability of the push plate and the push rod when pushing the steel bar.

[0016] Optionally, the pushing assembly includes a fixed plate disposed on the outside of the rotating disk, a connecting rod slidably installed inside the fixed plate for connecting the gear disk, and a pushing spring sleeved on the outside of the connecting rod.

[0017] By adopting the above technical solution, the pushing component is limited, and a fixed plate, connecting rod and pushing spring are set to provide a thrust to the side away from the rotating disk for the toothed disc. When the threaded block moves, the toothed disc and the toothed ring are kept engaged, so that when the locking component rotates, the toothed disc and the rotating disk can be driven to rotate synchronously through the toothed ring. The driving component on the rotating disk drives the pushing disc to move, which facilitates the insertion and connection of the reinforcing bar. At the same time, when the pushing component moves to the end point, the toothed ring and the toothed disc automatically disengage.

[0018] Optionally, all four sets of wedge blocks can be detachably installed in the mounting holes, and the side of the wedge block that contacts the reinforcing bar is provided with multiple sets of protrusions to increase the friction when in contact with the reinforcing bar.

[0019] By adopting the above technical solution, the number and installation method of the wedge blocks are limited. By setting four sets of wedge blocks and detachably installing them in the mounting holes, it is easy to replace damaged or worn wedge blocks, reducing maintenance costs. The protrusions on the side of the wedge block that contacts the reinforcing bar can increase the friction when in contact with the reinforcing bar, enhance the clamping effect on the reinforcing bar, and improve the stability of the reinforcing bar connection.

[0020] Optionally, the inner wall of the inner sleeve is designed to be smooth, and a rubber gasket for buffering the compression of the reinforcing bars is provided on the side of the inner sleeve near the push plate.

[0021] By adopting the above technical solution and defining the specific structure of the inner sleeve, a smooth inner wall is provided to reduce the frictional resistance when inserting the reinforcing bar, making it easier to insert the reinforcing bar. At the same time, the rubber gasket buffers the squeezing when the reinforcing bar is inserted, avoiding a hard collision between the reinforcing bar and the inner sleeve, thus providing protection for the reinforcing bar and the inner wall of the inner sleeve, and extending the service life of the inner sleeve to a certain extent.

[0022] Optionally, the outer sleeve has a conical structure, and the diameter of the end away from the rotating disk is smaller than the diameter of the other end, and the height of the wedge block on the side away from the rotating disk is higher than the height of the side closer to the rotating disk.

[0023] By adopting the above technical solution, further limitations are made on the outer sleeve and the wedge block. By setting the outer sleeve with a conical structure and a smaller diameter at the end away from the rotating disk, and the wedge block with a higher height at the side away from the rotating disk, it is easier to use spatial changes to make the wedge block more effectively squeeze the steel bar when the locking component pushes the wedge block to squeeze the steel bar, thereby enhancing the clamping force on the steel bar and improving the stability of the steel bar connection.

[0024] A method for installing a rebar connecting sleeve based on the above-mentioned rebar connecting sleeve includes the following steps: Step 1: Insert the ends of the two steel bars to be connected into the inner sleeve of the outer sleeve, so that the ends of the two steel bars abut against the opening of the inner sleeve, thus completing the initial positioning; Step 2: Rotate the locking component on the outer side of the outer sleeve to move the threaded block away from the rotating disk along the threaded section; the threaded block drives the extrusion cylinder to move and gradually applies extrusion to the wedge block, causing the wedge block to gradually approach the reinforcing bar; at the same time, the threaded block drives the toothed ring to move synchronously, preparing for subsequent driving. Step 3: Under the action of the pushing component, the toothed disc remains engaged with the toothed ring. Continue to rotate the locking component, and the toothed disc and the rotating disc will rotate synchronously through the toothed ring. The driving component on the rotating disc rotates and drives the pushing disc to move along the axis of the outer sleeve towards the rotating disc side, so that the pushing disc and the pushing rod gradually exit the inner sleeve. At this time, the two steel bars can be further inserted into the inner sleeve until the ends of the steel bars abut against the rubber gasket inside the inner sleeve. Step 4: Continue rotating the locking component, the pushing assembly moves to the end point, and the toothed ring disengages from the toothed disc; the threaded block moves further axially along the threaded section, pushing the wedge block to directly press against the reinforcing bar, so that the pressing component reaches the designed final locking force; utilizing the thread self-locking characteristics of the threaded section and the threaded block, the locking component is locked in the current position, so that the wedge block continues to hold the reinforcing bar tightly, completing the overall connection of the two reinforcing bars; Step 5: Check whether both steel bars are effectively locked. After confirming that everything is in the correct state, keep all components in their original positions. If disassembly or readjustment is required, reverse the above steps. After the wedge block is unlocked, the steel bars can be pushed out by the push plate and push rod to achieve convenient adjustment and disassembly.

[0025] In summary, this application includes at least one of the following beneficial technical effects: By setting up a locking component, a toothed disc, a toothed ring, and a rotating disc, the threaded block of the locking component is rotated to move along the axis of the outer sleeve. The pushing component keeps the toothed disc engaged with the toothed ring on one side of the threaded block, which facilitates the rotation of the rotating disc through the toothed ring. Because the toothed discs and toothed rings on both sides are engaged, the synchronous locking or disassembly of the components on both sides is achieved through the engaged rotating disc, which improves the installation and disassembly efficiency of the connecting sleeve steel bars to a certain extent. When disassembling the internal steel bars of the connecting sleeve, the gear ring and gear disc mesh to drive the rotating disc to rotate, thereby driving the push disc to move. When the drive disc moves, the push rod pushes the two steel bars out of the inner sleeves on both sides, which further improves the efficiency of steel bar disassembly and adjustment, while reducing the difficulty and workload of pulling out the steel bars. By setting a smooth inner wall, the frictional resistance during rebar insertion is reduced, making it easier to insert and pull out the rebar. At the same time, the rubber gasket buffers the squeezing during rebar insertion, avoiding hard collisions between the rebar and the inner sleeve, thus protecting the rebar and the inner wall of the inner sleeve and extending the service life of the inner sleeve to a certain extent. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is one of the partial structural schematic diagrams of the present invention; Figure 3 This is a partial structural schematic diagram of the present invention; Figure 4 This is a partial structural schematic diagram of the present invention (third one). Figure 5 The fourth part is a schematic diagram of the structure of the present invention.

[0027] Explanation of reference numerals in the attached drawings: 1. Outer sleeve; 2. Rotary disk; 3. Inner sleeve; 4. Extrusion component; 411. Mounting hole; 412. Extrusion cylinder; 413. Wedge block; 5. Locking component; 511. Threaded section; 512. Threaded block; 6. Drive component; 611. Drive screw; 612. Lead screw nut; 7. Push assembly; 711. Fixing plate; 712. Connecting rod; 713. Push spring; 8. Push disk; 9. Push rod; 10. Gear disk; 11. Gear ring; 12. Limiting rod; 13. Sliding block; 14. Slide groove; 15. Rubber washer. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0029] This application discloses a rebar connection sleeve, as shown in the embodiments below. Figure 1 and Figure 2 A rebar connecting sleeve includes two sets of outer sleeves 1, a rotating disk 2 rotatably mounted at the ends of the two sets of outer sleeves 1, two sets of inner sleeves 3 respectively installed inside the outer sleeves 1, a pressing component 4 for pressing and fixing the rebar, a locking component 5 for locking the position of the pressing component 4, a pushing disk 8 slidably installed inside the outer sleeves 1, a pushing rod 9 for pushing the rebar, a driving component 6 for driving the pushing disk 8, a gear disk 10, and a pushing assembly 7. The two sets of outer sleeves 1 are symmetrically arranged on both sides of the rotating disk 2. The inner sleeves 3 are for inserting the ends of the rebar. The pushing rod 9 is installed on the side of the pushing disk 8 away from the rotating disk 2. The driving component 6 is provided with... A toothed disc 10 is slidably mounted on one side of the rotating disk 2 to drive the push disc 8. The push assembly 7 is set between the toothed disc 10 and the rotating disk 2 to provide the toothed disc 10 with a thrust away from the rotating disk 2. The toothed ring 11 of the locking component 5 is set close to the rotating disk 2 to cooperate with the toothed disc 10, thereby driving the rotating disk 2 to rotate. The rotation of the rotating disk 2 drives the synchronous rotation of the components on both sides, thereby realizing synchronous locking or disassembly, which improves the efficiency of rebar installation and disassembly. At the same time, the rotating disk 2 drives the push disc 8 to move. The movement of the push disc 8 pushes the rebar out of the inner sleeve 3 through the push rod 9, which is convenient for repositioning or rebar removal.

[0030] Reference Figure 2 The outer sleeve 1 is made of alloy steel to ensure that it has sufficient strength and rigidity to withstand the tension and pressure during the connection of the reinforcing bars. The front end of the sleeve is tapered, and the diameter of the end away from the rotating disk 2 is smaller than the diameter of the other end. The inner sleeve 3 includes a sleeve wall and a rubber washer 15 set at the end of the sleeve wall. The inner wall of the sleeve wall is designed to facilitate the insertion and removal of the reinforcing bars. The rubber washer 15 is set on the side of the inner sleeve 3 near the pushing disk 8 to buffer the impact force when the reinforcing bars are squeezed, thereby protecting the reinforcing bars and the inner sleeve 3. The rubber washer 15 is made of synthetic rubber and has good elasticity and buffering performance.

[0031] Reference Figure 2 and Figure 3 The push assembly 7 includes a fixed plate 711, a connecting rod 712, and a push spring 713. The fixed plate 711 is disposed on the outside of the rotating disk 2. The connecting rod 712 is slidably installed inside the fixed plate 711 for connecting the gear disk 10. The push spring 713 is sleeved on the outside of the connecting rod 712 for providing a thrust to the gear disk 10 away from the rotating disk 2, so that the gear disk 10 and the gear ring 11 remain engaged.

[0032] The locking component 5 includes a threaded section 511 and a threaded block 512. The threaded section 511 is located on the outside of the outer sleeve 1. The threaded block 512 is used to engage with the threaded section 511 and slides on the outside of the outer sleeve 1. The toothed ring 11 is installed on the side of the threaded block 512 near the rotating disk 2. When the toothed ring 11 meshes with the toothed disk 10, the threaded block 512 moves, and the toothed ring 11 drives the toothed disk 10 and the rotating disk 2 to rotate. The engagement between the threaded block 512 and the threaded section 511 adopts the thread self-locking characteristic, which can lock the locking component 5 in the current position and ensure that the wedge block 413 continues to hold the reinforcing bar tightly. The surface of the threaded block 512 is designed with anti-slip texture to facilitate the operator's rotation.

[0033] Reference Figure 4 and Figure 5 The extrusion component 4 includes four sets of mounting holes 411, an extrusion cylinder 412, and four sets of wedge blocks 413. The mounting holes 411 are annular and evenly distributed on the outside of the outer sleeve 1. The extrusion cylinder 412 is fixedly installed on the side of the threaded block 512 away from the rotating disk 2. When the threaded block 512 moves, the extrusion cylinder 412 extrudes the wedge blocks 413. The wedge blocks 413 used to extrude and fix the reinforcing bars are slidably installed inside the mounting holes 411. The height of the side of the wedge block 413 away from the rotating disk 2 is higher than the height of the side closer to the rotating disk 2, so that the wedge block 413 can better hold the reinforcing bars when it is extruded. All four sets of wedge blocks 413 are detachably set in the mounting holes 411 for easy replacement and maintenance. The side of the wedge block 413 that contacts the reinforcing bar is provided with multiple sets of protrusions to increase the friction when in contact with the reinforcing bar, so that the reinforcing bar is fixed more firmly. The wedge blocks 413 are made of hard alloy material to improve their wear resistance and extrusion performance.

[0034] The gear disc 10 includes a disc body and teeth disposed on the side of the disc body. The disc body is slidably mounted on one side of the rotating disc 2. The teeth are used to mesh with the gear ring 11. The gear disc 10 is made of metal. Both sides of the rotating disc 2 are provided with drive screws 611. The disc body is circular and made of metal. The drive screws 611 are fixedly mounted on the front and rear end faces of the disc body, respectively, to cooperate with the lead screw nut 612 inside the push disc 8 to drive the push disc 8. Both sides of the push disc 8 are provided with limiting rods 12. A lead screw is installed inside the push disc 8. The female 612 is used to thread into the drive screw 611. The end of the limiting rod 12 is equipped with a sliding block 13. The inner wall of the outer sleeve 1 is provided with a sliding groove 14 for the sliding block 13 to move. The rotation of the push plate 8 is limited by the sliding groove 14, so that it slides in the sliding groove 14 along the axial direction of the outer sleeve 1. The push plate 8 is made of aluminum alloy. Two sets of push rods 9 are distributed and installed on the side of the push plate 8 away from the rotating plate 2. They are used to push the steel bar out of the inner sleeve 3 during disassembly. The push rods 9 are made of metal to avoid breakage during the pushing process.

[0035] This application also includes a method for installing a rebar connecting sleeve, comprising the following steps: Step 1: Insert the ends of the two steel bars to be connected into the inner sleeve 3 inside the outer sleeve 1, so that the ends of the two steel bars abut against the opening of the inner sleeve 3, thus completing the initial positioning. Step 2: Rotate the locking component 5 on the outer side of the outer sleeve 1 to move the threaded block 512 away from the rotating disk 2 along the threaded section 511; the threaded block 512 drives the extrusion cylinder 412 to move and gradually applies extrusion to the wedge block 413, so that the wedge block 413 gradually approaches the steel bar; at the same time, the threaded block 512 drives the toothed ring 11 to move synchronously, in preparation for subsequent driving. Step 3: Under the action of the pushing component 7, the gear disk 10 remains engaged with the gear ring 11. The locking component 5 continues to rotate, and the gear ring 11 drives the gear disk 10 to rotate synchronously with the rotating disk 2. The driving component 6 on the rotating disk 2 rotates and drives the pushing disk 8 to move along the axis of the outer sleeve 1 to one side of the rotating disk 2, so that the pushing disk 8 and the pushing rod 9 gradually exit the inner sleeve 3. At this time, the two steel bars can be further inserted into the inner sleeve 3 until the ends of the steel bars abut against the rubber gasket 15 inside the inner sleeve 3. Step 4: Continue rotating the locking component 5, pushing the assembly 7 to the end point, disengaging the toothed ring 11 from the toothed disc 10; the threaded block 512 moves further axially along the threaded section 511, pushing the wedge block 413 to directly press the reinforcing bar, so that the pressing component 4 reaches the designed final locking force; using the thread self-locking characteristics of the threaded section 511 and the threaded block 512, the locking component 5 is locked in the current position, so that the wedge block 413 continues to hold the reinforcing bar tightly, completing the overall connection of the two reinforcing bars; Step 5: Check whether both steel bars are effectively locked. After confirming that everything is in order, keep all components in their current state. If disassembly or readjustment is required, reverse the above steps. After the wedge block 413 is unlocked, the steel bars can be pushed out by the push plate 8 and the push rod 9 to achieve convenient adjustment and disassembly.

[0036] The implementation principle of this application embodiment is as follows: In the initial state, two sets of outer sleeves 1 are symmetrically arranged on both sides of the rotating disk 2. The threaded block 512 is located at the end of the threaded section 511 near the rotating disk 2. The extrusion cylinder 412 does not extrude the wedge block 413. The wedge block 413 is in the mounting hole 411 and does not contact the reinforcing bar. The push disk 8 is located inside the outer sleeve 1 near the inner sleeve 3. The push rod 9 extends into the inner sleeve 3. The push spring 713 of the push assembly 7 is in a compressed state. The toothed disk 10 and the toothed ring 11 on the threaded block 512 are in a meshing state.

[0037] When connecting reinforcing bars, first insert the ends of the two reinforcing bars to be connected into the inner sleeves 1 on both sides until the ends of the reinforcing bars abut against the opening of the inner sleeve 3, completing the initial positioning. At this time, the operator rotates the threaded block 512 on one side in the forward direction. The threaded block 512 moves away from the rotating disk 2 along the threaded section 511. The threaded block 512 drives the extrusion cylinder 412 to move synchronously. The extrusion cylinder 412 gradually contacts and extrudes the wedge block 413, causing the wedge block 413 to slide inward and gradually approach the surface of the reinforcing bar. At the same time, the threaded block 512 drives the toothed ring 11 to move away from the rotating disk 2. Since the push spring 713 always provides a thrust away from the rotating disk 2 for the toothed disk 10, the toothed disk 10 and the toothed ring 11 remain engaged. The threaded block 512 moves away from the rotating disk 2 through the toothed disk 10. The meshing of the gear ring 11 and the toothed ring 11 drives the rotating disk 2 to rotate, thereby driving the threaded block 512 on the other side to rotate synchronously. The threaded block 512 continues to rotate in the forward direction. The toothed ring 11 drives the toothed disk 10 to rotate through meshing. The toothed disk 10 drives the rotating disk 2 to rotate synchronously. The drive screw 611 on the end face of the rotating disk 2 rotates synchronously. Since the limiting rods 12 and sliding blocks 13 on both sides of the push disk 8 are constrained by the sliding groove 14 on the inner wall of the outer sleeve 1, the drive screw 611 rotates and drives the push disk 8 to make linear motion through the screw nut 612. The push disk 8 drives the push rod 9 to gradually withdraw from the inner sleeve 3, so that a smooth insertion channel is formed inside the inner sleeve 3. At this time, the operator can further insert the two steel bars into the inner sleeve 3 until the ends of the steel bars abut against the rubber washer 15 at the bottom of the inner sleeve 3.

[0038] As the threaded block 512 continues to move, it pushes the spring 713 to fully release. At this time, the gear disc 10 and the gear ring 11 disengage and automatically disengage. After that, the threaded block 512 continues to rotate, thereby further pressing the wedge block 413 through the compression cylinder 412, so that the wedge block 413 holds the steel bar with the designed locking force. Utilizing the thread self-locking characteristic between the threaded section 511 and the threaded block 512, the threaded block 512 is locked in the current position, and the wedge block 413 continues to maintain a firm compression on the steel bar, completing the overall connection of the two steel bars.

[0039] When it is necessary to disassemble or adjust the reinforcing bar, the threaded block 512 is rotated in the opposite direction, and the threaded block 512 moves towards the rotating disk 2. The compression of the extrusion cylinder 412 on the wedge block 413 gradually decreases, and the wedge block 413 gradually releases its grip on the reinforcing bar. At the same time, the toothed ring 11 moves back with the threaded block 512. When the toothed ring 11 re-contacts the toothed disk 10 and generates compression and relative rotation, the spring 713 is pushed to make the two mesh again. The threaded block 512 continues to rotate in the opposite direction, and the toothed ring 11 drives the toothed disk 10 and the rotating disk 2 to rotate in the opposite direction. The drive screw 611 drives the push disk 8 to move away from the rotating disk 2. The push rod 9 extends into the inner sleeve 3 and pushes the end of the reinforcing bar, gradually pushing the reinforcing bar out of the inner sleeve 3, thus achieving rapid disassembly.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A reinforcing bar coupling sleeve characterised in that, It includes two sets of outer sleeves (1), a rotating disk (2) rotatably installed at the ends of the two sets of outer sleeves (1), and an inner sleeve (3) installed inside the outer sleeves (1) for inserting the ends of the reinforcing bars. The outer sleeve (1) is provided with a pressing component (4) for fixing the reinforcing bar and a locking component (5) for locking the position of the pressing component (4). The outer sleeve (1) is slidably installed with a push plate (8), and a push rod (9) is installed on the side of the push plate (8) away from the rotating disk (2). A drive component (6) for driving the push plate (8) is provided on one side of the rotating disk (2). A toothed disc (10) is slidably mounted on one side of the rotating disk (2), and a pushing component (7) is provided between the toothed disc (10) and the rotating disk (2) to provide the toothed disc (10) with a thrust away from the rotating disk (2). The locking component (5) is provided with a toothed ring (11) on the side near the rotating disk (2) for cooperating with the toothed disk (10) to drive the rotating disk (2) to rotate.

2. A reinforcing bar coupling sleeve according to claim 1, characterised in that The locking component (5) includes a threaded section (511) disposed on the outside of the outer sleeve (1) and a threaded block (512) for engaging with the threaded section (511) and sliding on the outside of the outer sleeve (1). The toothed ring (11) is installed on the threaded block (512) on the side near the rotating disk (2).

3. A reinforcing bar coupling sleeve according to claim 2, characterised in that The extrusion component (4) includes four sets of mounting holes (411) disposed on the outside of the outer sleeve (1), an extrusion cylinder (412) fixedly installed on the side of the threaded block (512) away from the rotating disk (2), and a wedge block (413) slidably installed inside the mounting holes (411) for extruding steel bars.

4. A reinforcing bar coupling sleeve according to claim 1, characterised in that The drive component (6) includes a drive screw (611) fixedly installed on the end face of the rotary disk (2) and a lead screw nut (612) installed inside the push disk (8) and used to thread into the drive screw (611).

5. A reinforcing bar coupling sleeve according to claim 1, characterised in that Both sides of the push plate (8) are provided with limiting rods (12) for limiting the rotation of the push plate (8). The ends of the limiting rods (12) are equipped with sliding blocks (13). The inner wall of the outer sleeve (1) is provided with a sliding groove (14) for the sliding block (13) to move.

6. A reinforcing bar coupling sleeve according to claim 1, characterised in that The pushing assembly (7) includes a fixed plate (711) disposed on the outside of the rotating disk (2), a connecting rod (712) slidably installed inside the fixed plate (711) for connecting the gear disk (10), and a pushing spring (713) sleeved on the outside of the connecting rod (712).

7. A reinforcing bar coupling sleeve according to claim 3, characterised in that All four sets of wedge blocks (413) are detachably installed in the mounting holes (411). The side of the wedge block (413) that contacts the reinforcing bar is provided with multiple sets of protrusions to increase the friction when in contact with the reinforcing bar.

8. A reinforcing bar coupling sleeve according to claim 1, characterised in that The inner wall of the inner sleeve (3) is designed to be smooth, and a rubber gasket (15) for buffering the compression of the reinforcing bars is provided on the side of the inner sleeve (3) near the push plate (8).

9. A reinforcing bar coupling sleeve according to claim 1, characterised in that The outer sleeve (1) has a conical structure, and the diameter of the end away from the rotating disk (2) is smaller than the diameter of the other end. The height of the wedge block (413) on the side away from the rotating disk (2) is higher than the height of the side close to the rotating disk (2).

10. A method of installing a reinforcing bar coupler according to any one of claims 1 to 9, wherein: Includes the following steps: Step 1: Insert the ends of the two steel bars to be connected into the inner sleeve (3) inside the outer sleeve (1), so that the ends of the two steel bars abut against the opening of the inner sleeve (3) to complete the initial positioning; Step 2: Rotate the locking component (5) on the outer side of the outer sleeve (1) to move the threaded block (512) away from the rotating disk (2) along the threaded section (511); the threaded block (512) drives the extrusion cylinder (412) to move and gradually apply extrusion to the wedge block (413), so that the wedge block (413) gradually approaches the reinforcing bar; at the same time, the threaded block (512) drives the toothed ring (11) to move synchronously, in preparation for subsequent driving; Step 3: The toothed disc (10) is engaged with the toothed ring (11) under the action of the pushing component (7), and the locking component (5) continues to rotate. The toothed disc (10) and the rotating disc (2) are driven to rotate synchronously through the toothed ring (11). The driving component (6) on the rotating disc (2) rotates and drives the pushing disc (8) to move along the axis of the outer sleeve (1) to the side of the rotating disc (2), so that the pushing disc (8) and the pushing rod (9) gradually exit the inner sleeve (3). At this time, the two steel bars can be further inserted into the inner sleeve (3) until the ends of the steel bars abut against the rubber gasket (15) inside the inner sleeve (3). Step 4: Continue to rotate the locking component (5), the pushing component (7) moves to the end point, the toothed ring (11) disengages from the toothed disc (10); the threaded block (512) moves further axially along the threaded section (511), pushing the wedge block (413) to directly press the reinforcing bar, so that the pressing component (4) reaches the designed final locking force; using the thread self-locking characteristics of the threaded section (511) and the threaded block (512), the locking component (5) is locked in the current position, so that the wedge block (413) continues to hold the reinforcing bar tightly, completing the overall connection of the two reinforcing bars; Step 5: Check whether both steel bars are effectively locked. After confirming that there are no problems, keep the state of each component. If disassembly or readjustment is required, reverse the above steps. After the wedge block (413) is unlocked, the steel bar can be pushed out by the push plate (8) and push rod (9) to achieve convenient adjustment and disassembly.

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