Assembled sleeve joint

By designing an assembled sleeve joint consisting of an end sleeve, an adjustment component, and a connector component, the problems of inconvenient installation of small-pitch rebars and cumbersome repeated knob threading operations in existing technologies are solved, achieving convenient rebar connection and adapting to the installation needs of rebars with different spacings.

CN224281763UActive Publication Date: 2026-05-26WUHAN QINGSHAN BEIHU NANFENG EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHAN QINGSHAN BEIHU NANFENG EQUIP CO LTD
Filing Date
2025-05-30
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The existing double-threaded sleeve joint is inconvenient to install on two steel bars with a small spacing, and the repeated turning of the screw thread is cumbersome, making it difficult to achieve a convenient connection.

Method used

An assembled sleeve joint including an end sleeve, an adjustment component, and a connector component was designed. By rotating the knob of the adjustment component, the rod body is rotated, causing the outer sleeve to extend and connect with the rebar threadedly. When the spacing is large, pressing the side block causes the pressure block to move, and the outer sleeve slides to the maximum spacing before rotating and connecting.

Benefits of technology

It enables convenient connection on steel bars with different spacings, reduces the difficulty of operation, simplifies the installation process, and adapts to the installation needs of steel bars with smaller spacing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an assembled sleeve joint, relates to the technical field of building construction, and aims to solve the technical problems that an existing device is inconvenient to install two reinforcing steel bars with a small distance and is inconvenient to repeatedly turn screw threads, the assembled sleeve joint comprises two end cylinders, an adjusting assembly and a joint assembly, the two ends of the two end cylinders are fixedly connected through side shells, supports are fixed to the adjacent ends of the two end cylinders, assembling openings are formed in the middles of the supports, the adjusting assembly is rotationally installed between the two end cylinders, the adjusting assembly is composed of a rotary knob, the rotary knob penetrates through the middle of the rod body, the connector assembly is composed of two external connection cylinders, and the two external connection cylinders are fixedly connected with the connecting assembly. And a side block is slidably installed at an opening in the outer portion of the side shell, and pressing blocks are fixed to the upper end and the lower end of the inner side of the side block correspondingly. The device has the advantages that the size of the device is transversely compressed, connection of small-spacing steel bars is facilitated, bidirectional connection is completed through one-time spiral, and operation is convenient and fast.
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Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and more specifically, to an assembled sleeve joint. Background Technology

[0002] Double-threaded sleeve joints are a type of mechanical connection technology for reinforcing bars. They achieve effective connection through the coupling of the inner and outer threads of the sleeve with the threaded end of the reinforcing bar. Only the outer threaded sleeve needs to be rotated to connect with the inner threaded sleeve; the reinforcing bar no longer needs to be rotated. They are widely used in prefabricated building construction for connecting structural components and reinforcing bars, especially when single or bundled reinforcing bars cannot be rotated, where their advantages are even more pronounced.

[0003] Existing double-threaded sleeve joints require a relatively large distance between the two reinforcing bars, with the length of the device body being less than the distance between them, to facilitate insertion into the joint. However, for two reinforcing bars with a smaller distance, existing devices are inconvenient to insert and connect, making the operation cumbersome and often requiring repeated threading operations to achieve a complete connection. Therefore, we propose an assembled sleeve joint. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide an assembled sleeve joint to solve the technical problems of the current device being inconvenient to install two steel bars with a small spacing and the repeated knob thread operation being inconvenient.

[0005] To solve the above technical problems, this utility model provides the following technical solution: an assembled sleeve connector, including an end cylinder, an adjusting component, and a connector assembly. Two end cylinders are provided, and both sides of the two end cylinders are connected and fixed via side shells. A bracket is fixed to one adjacent end of each of the two end cylinders, and an assembly opening is provided in the middle of the bracket. The adjusting component is rotatably installed between the two end cylinders. The adjusting component consists of a knob and a rod through which the knob passes. The connector assembly consists of two outer cylinders, and the outer cylinders are slidably installed inside the corresponding end cylinders. A side block is slidably installed at the external opening of the side shell, and pressure blocks are fixed to the upper and lower ends of the inner side of the side block.

[0006] In use, the outer sleeve of this device is housed inside the end sleeve, reducing the overall length of the device. During use, the device is placed horizontally between the ends of two reinforcing bars. Then, the knob of the adjusting component is rotated, causing the rod to rotate. The threaded end of the rod drives the internal thread, causing the outer sleeve to extend outwards. Once the outer end of the outer sleeve is in contact with the reinforcing bar joint, the left hand holds the knob, while the right hand rotates the end sleeve of the device. Maintaining the knob position positions the threaded end of the rod. Rotating the end sleeve then rotates the outer sleeve, allowing the threaded portion of the outer sleeve to extend forward and connect with the threaded portion of the reinforcing bar. This structure and operation method allow for convenient assembly of the device, eliminating the need for… Repeatedly turning the knob thread can complete the bidirectional connection, reducing the difficulty of operation. The device has a small length after being stored. When connecting to two steel bars with a large gap, the internal pressure block can be moved synchronously by pressing the side block. The outer inclined surface of the pressure block squeezes the inclined pressure groove, causing the outer connecting cylinder to slide directly outward. The sliding length is the same as the length of the guide bar at the bottom of the rod. When sliding to the maximum gap position, the screw end aligns with the inner thread. By maintaining the pressing pressure and then rotating the knob, the screw end is threadedly connected to the inner thread. Through the above structural design, this device can easily switch the installation mode directly for steel bars with different gaps, easily adjust the position of the outer connecting cylinder, and easily fit directly to the joint of the steel bar, reducing the difficulty of operation.

[0007] Preferably, the knob is located in the gap between two adjacent ends of the two end cylinders, and the upper and lower end faces of the knob are rotatably installed in the corresponding assembly ports, and the diameter of the knob is larger than the diameter of the end cylinder.

[0008] Preferably, the outer ring array of the outer tube has a limiting groove, and the inner ring array of the outer end opening of the end tube has limiting strips, which slide and engage with the limiting groove.

[0009] Preferably, the outer tube has an internal thread at the bottom center and a guide groove is arranged in a ring array at the internal thread. The outer tube has inclined pressure grooves on both sides of the bottom. The end tube has side openings on both sides of the bottom, and the side openings are connected to the bottom of the inclined pressure grooves.

[0010] Preferably, both ends of the rod are provided with screw ends, and the screw ends are adapted to internal thread openings. The outer wall of the middle part of the rod is provided with guide bars in a ring array, and the guide bars are adapted to guide grooves.

[0011] Preferably, springs are arranged in an array on the inner side of the side block, and the inner end of the spring is attached to the outer wall of the end cylinder. After the pressure block passes through the side opening, the inclined part is located in the inclined pressure groove of the outer cylinder and they are mutually compatible.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model, through the design of the end tube, houses the outer tube of the device inside, reducing the overall length of the device. In use, the device is placed horizontally between the ends of two reinforcing bars. Then, the knob of the adjustment component is rotated, causing the rod to rotate. The threaded end of the rod drives the internal thread, causing the outer tube to extend outwards. Once the outer end of the outer tube is in contact with the reinforcing bar joint, the left hand holds the knob, while the right hand rotates the end tube of the device. Maintaining the knob position positions the threaded end of the rod. Rotating the end tube then rotates the outer tube, allowing the threaded portion of the outer tube to extend forward and connect with the threaded portion of the reinforcing bar. This structure and operation method allow for convenient assembly, eliminating the need for repeated knob and thread rotation to achieve bidirectional connection, thus reducing operational difficulty.

[0014] 2. This utility model also features a designed connector assembly. The device has a relatively short length when retracted. When connecting to two steel bars with a large spacing, pressing the side block synchronously drives the internal pressure block to move. The outer inclined surface of the pressure block squeezes the inclined pressure groove, causing the outer connecting cylinder to slide directly outward. The sliding length is the same as the length of the guide bar at the bottom of the rod. When sliding to the maximum spacing position, the screw end aligns with the inner thread. By maintaining the pressing pressure and then rotating the knob, the screw end is threadedly connected to the inner thread. Through the above structural design, this device facilitates the switching of installation modes for steel bars with different spacings, makes it easy to adjust the position of the outer connecting cylinder, and facilitates direct contact with the steel bar joint, reducing the difficulty of operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the unfolded structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the side shell structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the end tube structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the adjustment component of this utility model;

[0021] Figure 7 This is a schematic diagram of the connector assembly of this utility model.

[0022] The following are the labels in the diagram: 1. Side shell; 101. Side block; 102. Pressure block; 103. Spring; 2. End cylinder; 201. Side opening; 202. Limiting strip; 203. Bracket; 204. Assembly port; 3. Adjustment assembly; 301. Knob; 302. Guide strip; 303. Screw end; 304. Rod body; 4. Connector assembly; 401. Outer cylinder; 402. Limiting groove; 403. Inclined pressure groove; 404. Guide groove; 405. Internal thread. Detailed Implementation

[0023] like Figures 1 to 4 As shown, this utility model relates to an assembled sleeve connector, including an end cylinder 2, an adjusting component 3, and a connector component 4. Two end cylinders 2 are provided, and both sides of the two end cylinders 2 are connected and fixed via side shells 1. A bracket 203 is fixed to an adjacent end of each of the two end cylinders 2, and an assembly port 204 is provided in the middle of the bracket 203. The adjusting component 3 is rotatably installed between the two end cylinders 2. The adjusting component 3 consists of a knob 301 and a rod 304, with the knob 301 passing through the middle of the rod 304. The knob 301 is located within the gap between adjacent ends of the two end cylinders 2, and its upper and lower end faces are rotatably installed within corresponding assembly ports 204. The diameter of the knob 301 is larger than the diameter of the end cylinder 2. Limiting grooves 402 are formed in a ring array on the outer side of the outer cylinder 401. Limiting strips 202 are distributed in a ring array on the inner side of the outer end opening of the end cylinder 2, and the limiting strips 202 slide and engage with the limiting grooves 402. The outer sleeve 401 is housed inside the end sleeve 2, reducing the overall length of the device. In use, the device is placed horizontally between the ends of two reinforcing bars. Then, the knob 301 of the adjusting assembly 3 is rotated. The knob 301 rotates the rod 304, and the threaded end 303 of the rod 304 drives the internal thread 405, causing the outer sleeve 401 to extend outwards. Once the outer end of the outer sleeve 401 is in contact with the reinforcing bar joint, the left hand holds the knob 301, and the right hand rotates the end sleeve 2 of the device. Maintaining the knob 301 position positions the threaded end 303 of the rod 304. Rotating the end sleeve 2 then rotates the outer sleeve 401, allowing the outer sleeve 401 to extend forward and connect to the threaded portion of the reinforcing bar through rotation. This structure and operation method allow for convenient assembly, enabling bidirectional connection without repeated thread rotation, thus reducing operational difficulty.

[0024] like Figures 3 to 7As shown, this utility model relates to an assembled sleeve connector, including an end cylinder 2, an adjusting component 3, and a connector assembly 4. The connector assembly 4 consists of two outer cylinders 401, which are slidably installed inside the corresponding end cylinders 2. A side block 101 is slidably installed at the external opening of the side shell 1, and pressure blocks 102 are fixed at the upper and lower ends of the inner side of the side block 101. An internal thread 405 is opened at the middle of the bottom of the outer cylinder 401, and the internal thread 405 is arranged in a ring array. The device includes a guide groove 404, and inclined pressure grooves 403 are provided on both sides of the bottom of the outer cylinder 401. Side openings 201 are provided on both sides of the bottom of the end cylinder 2, and the side openings 201 connect to the bottom of the inclined pressure grooves 403. Both ends of the rod body 304 are provided with screw ends 303, and the screw ends 303 are adapted to internal thread openings 405. Guide bars 302 are distributed in a ring array on the outer wall of the middle part of the rod body 304, and the guide bars 302 are adapted to the guide grooves 404. Springs are distributed in an array on the inner side of the side block 101. Spring 103, with its inner end fitting against the outer wall of end cylinder 2. After the pressure block 102 passes through the side opening 201, its inclined part is located in the inclined pressure groove 403 of the outer connecting cylinder 401, and they are mutually compatible. The length of this device after being stored is relatively small. When connected to two steel bars with a large spacing, the inner pressure block 102 can be moved synchronously by pressing the side block 101. The outer inclined surface of the pressure block 102 squeezes the inclined pressure groove 403, causing the outer connecting cylinder 401 to slide directly outward. The sliding length is the same as the length of the guide bar 302 at the bottom of the rod 304. When sliding to the maximum spacing position, the screw end 303 is connected to the inner thread 405. By maintaining the pressing pressure and then rotating the knob 301, the screw end 303 is threadedly connected to the inner thread 405. Through the above structural design, this device can easily switch the installation mode directly for steel bars with different spacing, easily adjust the protruding position of the outer connecting cylinder 401, and easily fit directly against the joint of the steel bar, reducing the difficulty of operation.

[0025] Working Principle: This embodiment provides an assembled sleeve connector. In use, the outer sleeve 401 is housed inside the end sleeve 2, reducing the overall length of the device. During use, the device is placed horizontally between the ends of two reinforcing bars. Then, the knob 301 of the adjusting component 3 is rotated. The knob 301 drives the rod 304 to rotate. The threaded end 303 of the rod 304 drives the internal thread 405, causing the outer sleeve 401 to extend outwards. When the outer end of the outer sleeve 401 is in contact with the reinforcing bar joint, the left hand holds the knob 301, and the right hand rotates the end sleeve 2 of the device. Maintaining the position of the knob 301 positions the threaded end 303 of the rod 304. Then, rotating the end sleeve 2 drives the outer sleeve 401... 01. By rotating, the outer cylinder 401 can extend its thread forward and can also be threaded to the threaded part of the rebar by rotating. The device is relatively short when retracted. When connecting to two rebars with a large gap, the inner pressure block 102 can be moved synchronously by pressing the side block 101. The outer inclined surface of the pressure block 102 squeezes the inclined pressure groove 403, causing the outer cylinder 401 to slide directly outward. The sliding length is the same as the length of the guide bar 302 at the bottom of the rod 304. When sliding to the maximum gap position, the screw end 303 mates with the inner thread 405. By maintaining the pressing pressure and then rotating the knob 301, the screw end 303 is threaded to the inner thread 405. Through the above structural design.

[0026] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. An assembled sleeve connector, comprising an end sleeve (2), an adjusting assembly (3), and a connector assembly (4), characterized in that: Two end cylinders (2) are provided, and both sides of the two end cylinders (2) are connected and fixed by side shells (1). A bracket (203) is fixed at one adjacent end of the two end cylinders (2), and an assembly port (204) is opened in the middle of the bracket (203). The adjustment component (3) is rotatably installed between the two end cylinders (2). The adjustment component (3) is composed of a knob (301) and a rod (304) through which the knob (301) passes. The connector component (4) is composed of two outer cylinders (401), and the outer cylinders (401) are slidably installed in the corresponding end cylinders (2). A side block (101) is slidably installed at the outer opening of the side shell (1), and a pressure block (102) is fixed at the upper and lower ends of the inner side of the side block (101).

2. The assembled sleeve joint according to claim 1, characterized in that: The knob (301) is located in the gap between the two end cylinders (2) and the upper and lower end faces of the knob (301) are rotatably installed in the corresponding assembly port (204). The diameter of the knob (301) is greater than the diameter of the end cylinder (2).

3. The assembled sleeve joint according to claim 2, characterized in that: The outer ring array of the outer tube (401) has a limiting groove (402), and the inner ring array of the outer end opening of the end tube (2) has a limiting strip (202) distributed, and the limiting strip (202) slides and engages with the limiting groove (402).

4. The assembled sleeve joint according to claim 3, characterized in that: The outer tube (401) has an internal thread (405) at the middle of its bottom, and a guide groove (404) is arranged in a ring array at the internal thread (405). The outer tube (401) has inclined pressure grooves (403) on both sides of its bottom. The end tube (2) has side openings (201) on both sides of its bottom, and the side openings (201) are connected to the bottom of the inclined pressure grooves (403).

5. The assembled sleeve joint according to claim 4, characterized in that: Both ends of the rod (304) are provided with screw ends (303), and the screw ends (303) are adapted to the internal thread (405). The outer wall of the middle part of the rod (304) is provided with guide strips (302) arranged in a ring array, and the guide strips (302) are adapted to the guide groove (404).

6. The assembled sleeve joint according to claim 5, characterized in that: The inner side of the side block (101) is arrayed with springs (103), and the inner end of the spring (103) is attached to the outer wall of the end cylinder (2). The pressure block (102) passes through the side opening (201) and the inclined part is located in the inclined pressure groove (403) of the outer cylinder (401), and they are mutually compatible.