An automatic positioning and clamping device for a connecting sleeve
By designing an automatic positioning and clamping device, and utilizing a combination of arc-shaped clamping plates and screw nuts, along with limiting and squeezing components, the problem of difficult pipe connection and installation and disassembly in existing technologies is solved, achieving fast and stable pipe connection and convenient disassembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN XINGYANG MACHINERY CO LTD
- Filing Date
- 2025-08-05
- Publication Date
- 2026-07-21
AI Technical Summary
Existing pipe connection methods are difficult to install during construction, affecting construction efficiency, and are difficult to disassemble and replace, especially in confined spaces or harsh environments.
An automatic positioning and clamping device is adopted, which utilizes the rotational connection of the first and second arc-shaped clamping plates, combined with the fastening method of screws and nuts, and achieves quick clamping and convenient disassembly through limiting components and extrusion components, including spring pushing the positioning block for automatic positioning and moving the sliding plate to release positioning.
It enables fast and reliable pipe connections, improves construction efficiency, ensures the stability and safety of the connections, and facilitates reuse.
Smart Images

Figure CN224533741U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe connection technology, and in particular to an automatic positioning and clamping device for a connecting sleeve. Background Technology
[0002] In concrete conveying operations, it is often necessary to connect two conveying pipelines to ensure that concrete can be delivered smoothly and continuously to the designated location. Traditional pipeline connection methods typically use flange connections or welding. Flange connections require the installation of a large number of bolts and nuts, making the operation cumbersome and time-consuming, especially in situations with confined spaces or harsh construction environments, where installation becomes even more difficult and seriously affects construction efficiency.
[0003] While welded connections offer high strength, they require specialized welding equipment and operators. Furthermore, disassembling and replacing welded pipes is difficult. If pipe damage occurs or the connection position needs adjustment, cutting and re-welding are necessary, increasing costs and potentially negatively impacting pipe quality and lifespan. Therefore, developing a device that can quickly and conveniently connect two concrete conveying pipes is of significant practical importance. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as greater installation difficulty and serious impact on construction efficiency, by proposing an automatic positioning and clamping device for connecting sleeves.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] An automatic positioning and clamping device for a connecting sleeve includes a first arc-shaped clamping plate and a second arc-shaped clamping plate. The first arc-shaped clamping plate is rotatably connected to the side end of the second arc-shaped clamping plate. Two fixing blocks are fixed to the surface of the first arc-shaped clamping plate, and a rotating shaft is rotatably mounted inside the two fixing blocks. A screw is welded and fixed to the surface of the rotating shaft. A connecting block is fixed to the surface of the second arc-shaped clamping plate. A positioning groove for accommodating the screw is provided in the connecting block. A nut for fastening the first arc-shaped clamping plate and the second arc-shaped clamping plate is threaded to the surface of the screw. The nut and the side end of the connecting block are in compressive contact.
[0007] To prevent the screw from coming out of the positioning groove, a set of limiting components is provided in the connecting block. The limiting components are used to automatically position the screw.
[0008] And a pressing assembly used in conjunction with a limiting assembly, the pressing assembly being used to release the positioning of the screw.
[0009] In one possible design, the limiting component includes two first grooves formed in the connecting block, each of the two first grooves having a slidable positioning block, each of the two positioning blocks having a receiving groove at its far ends, each of the two receiving grooves having a spring, and the two ends of the two springs abutting against the inner walls of the two receiving grooves and the inner walls of the two first grooves respectively through spring seats.
[0010] The spring's elasticity pushes two positioning blocks to move closer together, thereby locking the positioning groove after the screw enters it and positioning the screw to prevent it from coming off.
[0011] In one possible design, each of the two positioning blocks has a sloping groove at the end away from the second arc-shaped clamping plate. The two sloping grooves are used to facilitate the direct placement of the screw into the positioning groove for positioning.
[0012] In one possible design, the extrusion assembly includes two limiting grooves formed in the connecting block, each limiting groove having an adjusting rod sliding in it, and each of the top ends of the two positioning blocks having a sliding groove, with the two adjusting rods sliding within the two limiting plates respectively.
[0013] In this process, by moving the adjusting rod within the limiting groove and sliding it within the slide groove, the two positioning blocks are driven to move in opposite directions, thereby opening the positioning groove and releasing the screw from its positioning.
[0014] In one possible design, connecting rods are fixed to the surfaces of both adjusting rods, a sliding plate slides on the surface of the connecting block, and both connecting rods are fixed to the side ends of the sliding plate.
[0015] The sliding plate can be moved synchronously by moving the two connecting rods, and the two connecting rods can limit the sliding plate in opposite directions to prevent the sliding plate from disengaging.
[0016] In one possible design, a limiting plate is fixed to the bottom end of the screw to prevent the nut from coming off.
[0017] In this application, the elasticity of the spring pushes the two positioning blocks to move toward each other, thereby locking the positioning groove after the screw enters the positioning groove to position the screw and prevent the screw from falling out. The two inclined grooves are used to facilitate the direct placement of the screw into the positioning groove for positioning.
[0018] By moving the sliding plate, the two connecting rods can be moved simultaneously, causing the adjusting rod to move within the limiting groove. The adjusting rod also slides within the sliding groove, thereby driving the two positioning blocks to move in opposite directions, opening the positioning groove and releasing the screw from its positioning.
[0019] Beneficial effects: The automatic positioning and clamping device for connecting sleeves described in this utility model can quickly clamp the pipe connecting sleeve through the rotating and opening design of the first and second arc-shaped clamping plates. Combined with the tightening method of the screw and nut, the clamping operation can be achieved simply by rotating the nut, greatly shortening the pipe connection time and improving construction efficiency. It is especially suitable for concrete conveying projects with high requirements for construction speed.
[0020] In this utility model, the automatic positioning and clamping device for connecting sleeves has a spring in the limiting component that pushes the positioning block to automatically position the screw entering the positioning groove. No manual operation is required, the positioning is accurate and reliable, and it effectively prevents the screw from coming out of the positioning groove during the connection process, thus ensuring the stability and safety of the connection.
[0021] In this invention, the design of the extrusion assembly makes it very convenient to release the screw from its position. Simply moving the sliding plate will move the adjusting rod via the connecting rod, thereby driving the positioning block to open the positioning slot for easy removal of the screw, facilitating the disassembly and reuse of the device. Attached Figure Description
[0022] Figure 1 This is a front perspective view of an automatic positioning and clamping device for a connecting sleeve proposed in this utility model;
[0023] Figure 2 This is a first partial perspective view of an automatic positioning and clamping device for a connecting sleeve proposed in this utility model;
[0024] Figure 3 This is a cross-sectional view of an automatic positioning and clamping device for a connecting sleeve proposed in this utility model;
[0025] Figure 4 This is a second partial perspective view of an automatic positioning and clamping device for a connecting sleeve proposed in this utility model.
[0026] In the diagram: 1. First arc-shaped clamping plate; 2. Second arc-shaped clamping plate; 3. Fixing block; 4. Rotating shaft; 5. Screw; 6. Limiting plate; 7. Connecting block; 8. Adjusting rod; 9. Connecting rod; 10. Sliding plate; 11. Positioning groove; 12. Positioning block; 13. First groove; 14. Receiving groove; 15. Spring; 16. Slide groove; 17. Nut; 18. Limiting groove. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0028] In one embodiment: Refer to Figures 1-4 An automatic positioning and clamping device for a connecting sleeve is used in the field of pipe connection technology. It includes a first arc-shaped clamping plate 1 and a second arc-shaped clamping plate 2. The first arc-shaped clamping plate 1 is rotatably connected to the side end of the second arc-shaped clamping plate 2. The two can rotate relative to each other to open and close so as to clamp the pipe connecting sleeve.
[0029] Two fixing blocks 3 are fixed to the surface of the first arc-shaped clamping plate 1. A rotating shaft 4 rotates within the two fixing blocks 3, and a screw 5 is welded and fixed to the surface of the rotating shaft 4. A connecting block 7 is fixed to the surface of the second arc-shaped clamping plate 2. A positioning groove 11 for accommodating the screw 5 is provided in the connecting block 7. When the first arc-shaped clamping plate 1 and the second arc-shaped clamping plate 2 are closed, the screw 5 can enter the positioning groove 11. A nut 17 is threaded onto the surface of the screw 5. The nut 17 and the side end of the connecting block 7 are in contact. By tightening the nut 17, the first arc-shaped clamping plate 1 and the second arc-shaped clamping plate 2 can securely clamp the pipe connection sleeve. A limiting plate 6 is fixed to the bottom end of the screw 5 to prevent the nut 17 from disengaging from the screw 5 during tightening.
[0030] To prevent the screw 5 from dislodging from the positioning groove 11, a set of limiting components is provided in the connecting block 7. The limiting components include two first grooves 13 formed within the connecting block 7, each containing a positioning block 12. Each positioning block 12 has a receiving groove 14 at its far ends, and each receiving groove 14 contains a spring 15. The two ends of the springs 15 abut against the inner walls of the two receiving grooves 14 and the two first grooves 13, respectively, via spring seats. In its natural state, the elasticity of the springs 15 pushes the two positioning blocks 12 towards each other. When the screw 5 enters the positioning groove 11, the two positioning blocks 12 seal the positioning groove 11, positioning the screw 5 and preventing it from dislodging. Each positioning block 12 has a sloping groove at its far end from the second arc-shaped clamp 2, allowing the screw 5 to smoothly enter along the sloping groove when placed into the positioning groove 11, facilitating the positioning operation.
[0031] In another embodiment: Refer to Figures 1-4An improvement upon Embodiment 1: The extrusion assembly and the limiting assembly work together to release the positioning of the screw 5. The extrusion assembly includes two limiting grooves 18 formed within the connecting block 7, with adjusting rods 8 sliding within each groove 18. Each of the two positioning blocks 12 has a sliding groove 16 at its top, and the two adjusting rods 8 slide within the two sliding grooves 16 respectively. When it is necessary to release the positioning of the screw 5, the adjusting rods 8 are moved within the limiting grooves 18 and slide within the sliding grooves 16, thereby driving the two positioning blocks 12 to move in opposite directions, opening the positioning groove 11, and allowing the screw 5 to be removed from the positioning groove 11. Connecting rods 9 are fixed to the surfaces of the two adjusting rods 8, and a sliding plate 10 slides on the surface of the connecting block 7. The two connecting rods 9 are fixed to the side ends of the sliding plate 10. By moving the sliding plate 10, the two connecting rods 9 can be moved synchronously, thereby moving the adjusting rods 8 and realizing the opening operation of the positioning groove 11. At the same time, the two connecting rods 9 can limit the sliding plate 10 in opposite directions to prevent the sliding plate 10 from detaching from the surface of the connecting block 7.
[0032] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.
[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An automatic positioning and clamping device for connecting sleeves, used to quickly connect two concrete conveying pipes, characterized in that, include: A first arc-shaped clamping plate (1) and a second arc-shaped clamping plate (2) are provided. The first arc-shaped clamping plate (1) is rotatably connected to the side end of the second arc-shaped clamping plate (2). Two fixing blocks (3) are fixed on the surface of the first arc-shaped clamping plate (1). A rotating shaft (4) is rotatably installed inside the two fixing blocks (3). A screw (5) is welded and fixed on the surface of the rotating shaft (4). A connecting block (7) is fixed on the surface of the second arc-shaped clamping plate (2). A positioning groove (11) for accommodating the screw (5) is provided in the connecting block (7). A nut (17) for fastening the first arc-shaped clamping plate (1) and the second arc-shaped clamping plate (2) is threaded on the surface of the screw (5). The nut (17) and the side end of the connecting block (7) are in contact. In order to prevent the screw (5) from coming out of the positioning groove (11), a set of limiting components is provided in the connecting block (7), which are used to automatically position the screw (5); And a pressing assembly used in conjunction with a limiting assembly, the pressing assembly being used to release the positioning of the screw (5).
2. The automatic positioning and clamping device for a connecting sleeve according to claim 1, characterized in that, The limiting component includes two first grooves (13) formed in the connecting block (7), each of the two first grooves (13) having a slidable positioning block (12), and each of the two positioning blocks (12) having a receiving groove (14) at their far ends, and each of the two receiving grooves (14) having a spring (15), with the two ends of the two springs (15) abutting against the inner walls of the two receiving grooves (14) and the inner walls of the two first grooves (13) respectively through spring seats; In this process, the elasticity of the spring (15) pushes the two positioning blocks (12) to move toward each other, thereby blocking the positioning groove (11) to position the screw (5) after the screw (5) enters the positioning groove (11) and preventing the screw (5) from coming off.
3. The automatic positioning and clamping device for a connecting sleeve according to claim 2, characterized in that, Both positioning blocks (12) have inclined grooves at the ends away from the second arc-shaped clamp (2). The two inclined grooves are used to facilitate the direct placement of the screw (5) into the positioning groove (11) for positioning.
4. An automatic positioning and clamping device for a connecting sleeve according to claim 2, characterized in that, The extrusion assembly includes two limiting grooves (18) opened in the connecting block (7), and an adjusting rod (8) is slidably provided in each of the two limiting grooves (18). The top of each of the two positioning blocks (12) is provided with a sliding groove (16), and the two adjusting rods (8) slide in the two limiting plates (6) respectively. In this process, by moving the adjusting rod (8) within the limiting groove (18), the adjusting rod (8) also slides within the sliding groove (16), thereby driving the two positioning blocks (12) to move in opposite directions, opening the positioning groove (11) and releasing the positioning of the screw (5).
5. An automatic positioning and clamping device for a connecting sleeve according to claim 4, characterized in that, Both of the adjusting rods (8) have connecting rods (9) fixed on their surfaces, and the connecting block (7) has a sliding plate (10) sliding on its surface. Both of the connecting rods (9) are fixed to the side end of the sliding plate (10). Among them, by moving the sliding plate (10), the two connecting rods (9) can be moved simultaneously. The two connecting rods (9) can limit the sliding plate (10) in the opposite direction to prevent the sliding plate (10) from disengaging.
6. An automatic positioning and clamping device for a connecting sleeve according to claim 1, characterized in that, The bottom end of the screw (5) is fixed with a limiting plate (6), which is used to prevent the nut (17) from coming off.