Quick-mount check valve

Abstract

This utility model discloses a quick-installation one-way valve, including a valve body with a quick-release sleeve connector mounted on the valve body. The quick-release sleeve connector includes three pairs of arc-shaped concave fitting blocks. A pair of concave annular limiting blocks are mounted on the valve body. The three arc-shaped concave fitting blocks are movably inserted into the inner side of the concave annular limiting blocks. This utility model relates to the field of one-way valve technology. Through a synchronous transmission system of bevel rack and pinion driven by a single drive motor, the complete synchronous movement of all clamping points is achieved. This not only makes the installation and disassembly process extremely fast and efficient, but also ensures that the pipeline is subjected to a uniform and stable three-point radial clamping force, fundamentally overcoming the defects of uneven clamping and easy loosening of traditional quick-installation structures.

Description

Technical Field

[0001] This utility model relates to the field of one-way valve technology, specifically a quick-install one-way valve. Background Technology

[0002] In fluid transport systems, check valves are crucial components ensuring unidirectional flow of media and preventing backflow, and are widely used in petrochemical, water supply and drainage, hydraulic and pneumatic fields. Traditional check valve connections to pipelines primarily rely on flange or threaded connections. Flange connections require aligning bolt holes, inserting bolts, and tightening them one by one, making installation cumbersome and time-consuming, demanding ample operating space, and inefficient in situations requiring frequent disassembly and maintenance. While threaded connections are relatively simple, they suffer from difficulties in controlling tightening torque, potential thread damage, reliance on PTFE tape or sealant for sealing, and poor reusability, similarly failing to meet the demands of efficient operation.

[0003] To improve installation efficiency, some quick-connect couplings have emerged on the market. However, most of them use snap-fit ​​or single-point locking structures, which often result in uneven clamping force, potentially leading to poor sealing and leakage or loosening of the coupling under pressure fluctuations, thus lacking reliability. Furthermore, existing quick-connect structures typically lack precise monitoring and feedback of clamping force, making installation quality overly reliant on operator experience and hindering standardization and controllability. Simultaneously, the drive and control components of these devices are often highly integrated, making repair and replacement extremely inconvenient in case of malfunction, increasing subsequent use and maintenance costs. Therefore, this case study was developed to address these issues in depth. Utility Model Content

[0004] To achieve the above objectives, this utility model provides the following technical solution: a quick-installation one-way valve, comprising a valve body, on which a quick-release sleeve connector is mounted, the quick-release sleeve connector comprising three pairs of arc-shaped concave fitting blocks, a pair of concave annular limiting blocks mounted on the valve body, the three arc-shaped concave fitting blocks being movably inserted into the inner side of the concave annular limiting blocks, a lifting slide rail assembly mounted on the inner side of the concave annular limiting blocks, a lifting slider assembly mounted on the arc-shaped concave fitting blocks, the lifting slider assembly being movably inserted into the inner side of the lifting slide rail assembly, a lifting threaded rod mounted on the concave annular limiting blocks, and a lifting screw mounted on the arc-shaped concave fitting blocks. The spiral tube is movably fitted onto the lifting threaded rod. An inclined pressing block is mounted on the concave arc-shaped fitting block. A bevel gear is mounted on the lifting threaded rod. An annular slide is mounted on the inner side of the concave annular limiting block. An annular slider is mounted on the inner side of the annular slide. A bevel rack is mounted on the annular slider. The bevel rack meshes with multiple bevel gears. A drive groove is formed on the concave annular limiting block. An angle drive mechanism is mounted on the inner side of the drive groove. An angle gear is mounted on the angle drive mechanism. An angle fitting rack is mounted on the annular slider. The angle fitting rack meshes with the angle gear.

[0005] Preferably, a pressure sensor is installed on the arc-shaped concave sleeve block, a fixing threaded hole is installed on the valve body, and a fixing bolt is installed on the inner side of the fixing threaded hole.

[0006] Preferably, the concave annular limiting block is also provided with a manual operation interface, which is connected to the output shaft of the lifting threaded rod or the angle drive.

[0007] Preferably, the working surface of the inclined extrusion block is coated with an elastic sealing layer, and the elastic sealing layer is made of rubber.

[0008] Preferably, a control unit is mounted on the valve body, the pressure sensor is signal-connected to the control unit, and the angle drive is electrically connected to the control unit.

[0009] Preferably, the outer side of the concave annular limiting block is provided with an openable maintenance cover.

[0010] This invention provides a quick-installation one-way valve. This quick-installation check valve offers several advantages. First, its bevel rack and pinion synchronous transmission system, driven by a single motor, achieves fully synchronized movement of all clamping points. This not only makes installation and disassembly extremely fast and efficient but also ensures that the pipeline is subjected to a uniform and stable three-point radial clamping force, fundamentally overcoming the shortcomings of uneven clamping and easy loosening in traditional quick-installation structures. Second, the pressure sensor and control system integrated on the clamping block form an intelligent closed-loop feedback system, enabling real-time monitoring and precise automatic control of the clamping force. This ensures reliable sealing and avoids pipeline damage or leakage due to excessive tightness or looseness, greatly improving the consistency and safety of installation quality. Third, the unique inclined compression block combined with the arc or flexible contact surface design provides strong locking force while effectively protecting the outer wall of the pipeline. Combined with the O-rings at both ends of the valve body, this provides dual protection of mechanical locking and radial sealing. Finally, the modular design (such as an openable maintenance cover and an easily disassembled drive component) significantly improves the maintainability and service life of the equipment, reducing long-term maintenance costs. Attached Figure Description

[0011] Figure 1 This is a front sectional view of a quick-installation check valve according to the present invention.

[0012] Figure 2 This is a side sectional view of a quick-installation check valve according to the present invention.

[0013] Figure 3 for Figure 1 A magnified view of the letter "A" in the image.

[0014] In the diagram: 1. Valve body; 2. Arc-shaped concave sleeve block; 3. Concave annular limiting block; 4. Lifting threaded rod; 5. Lifting threaded tube; 6. Inclined extrusion block; 7. Annular slide rail; 8. Bevel gear; 9. Annular slider; 10. Bevel rack; 11. Drive groove; 12. Angle gear; 13. Angle drive motor; 14. Angle sleeve rack. Detailed Implementation

[0015] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0016] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires. Appropriate controllers and encoders should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control further. Example

[0017] Please see Figure 1-3 In fluid transport systems, check valves are key components ensuring unidirectional flow of the medium, and their traditional connection methods mainly rely on flanges or threaded structures. Flange connections are cumbersome and time-consuming to install, require ample operating space, and are unsuitable for scenarios requiring frequent disassembly and assembly; threaded connections suffer from problems such as difficulty in controlling tightening force, easy damage to threads, and poor repeatability of sealing reliability. Although some quick-connect couplings have appeared on the market, they mostly use snap-fit ​​or single-point locking, and uneven clamping force can easily lead to poor sealing or loosening under pressure fluctuations. Furthermore, they generally lack precise monitoring and feedback of clamping force, and installation quality relies excessively on manual experience. In addition, existing quick-connect structures are often inconvenient to maintain, increasing long-term operating costs. Therefore, this application protects a quick-installation check valve, which operates through a pair of angle drive motors 13, which respectively drive angle gears 12 on the drive end of the pair of angle drive motors 13. The angle gears 12 respectively drive angle gear racks 14 meshing with the gears. The angle gear racks 14 drive the circular slider 9 on them, so that the circular slider 9 rotates stably along the inner side of the circular slide 7. The circular slider 9 drives the conical rack 10 on it. The conical rack 10 drives the conical gear 8 meshing with the gears. The conical gear 8 drives the lifting threaded rod 4 on it. The rotation of the lifting threaded rod 4 drives the lifting threaded tube 5 on it, so that the lifting threaded tube 5 moves stably up and down along the lifting threaded rod 4. The lifting threaded tube 5 drives the arc concave fitting block 2 on it. The movement of the arc concave fitting block 2 thereby triangularly compresses and fixes the pipe and the valve body 1. In summary, the operation begins in the "rapid clamping" stage: after the pipe is inserted into the valve body 1 connection port, the control system activates a pair of angle drive motors 13, driving the angle gears 12 to rotate. The gear transmission meshes with the angle gear set rack 14, which rotates in a circular motion, thereby driving the annular slider 9 with the fixed rack to rotate stably within the annular slide rail 7. The conical rack 10 on the annular slider 9 rotates accordingly, synchronously driving the conical gears 8 at the ends of all (usually three) lifting threaded rods 4. This design ensures that power is evenly and synchronously distributed to each clamping point. The rotation of the lifting threaded rod 4 is converted into the linear motion of the lifting threaded tube 5, which pushes the arc-shaped concave sleeve block 2 radially towards the center of the valve body 1 along the lifting slide rail. The inclined pressing block 6 on the mounting block (whose working surface is typically designed as an arc shape to fit the pipe diameter or equipped with a flexible pad) presses against the outer wall of the pipe, converting the axial displacement into a strong radial clamping force through the principle of the inclined plane. Ultimately, a stable layout consisting of three or more points firmly clamps the pipe, completing the rapid clamping process. The crucial "intelligent control and feedback" process is implemented throughout: during clamping, a pressure sensor integrated on the arc-shaped concave mounting block 2 monitors the clamping force in real time and feeds the signal back to the control system. The control system automatically adjusts the angle drive motor 13 according to the preset clamping force threshold, achieving closed-loop automatic control of the clamping force. This prevents leakage due to insufficient clamping force and avoids damage to the pipe or valve body 1 components due to excessive clamping. When disassembly is required, the control system commands the drive motor to reverse, causing the aforementioned transmission chain to run in reverse, driving the sleeve block to retract radially, thus easily removing the pipe. Furthermore, the complete operating principle also includes the following auxiliary process: while the pipe is clamped, the O-rings at both ends of the insertion hole formed by the valve body 1 and the sleeve block are compressed, achieving a reliable radial static seal and ensuring the fluid's sealing performance. The valve body 1 is mounted to the base with fixing bolts, providing a stable static foundation for the entire dynamic connection. For ease of maintenance, the maintenance cover covering the transmission mechanism can be opened, simplifying the inspection and replacement of the drive components.

[0018] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-mount check valve characterized by, The system includes a valve body (1), on which a quick-release sleeve connector is mounted. The quick-release sleeve connector includes three pairs of arc-shaped concave fitting blocks (2). A pair of concave annular limiting blocks (3) are mounted on the valve body (1). The three arc-shaped concave fitting blocks (2) are movably inserted into the inner side of the concave annular limiting blocks (3). A lifting slide block assembly is mounted on the inner side of the concave annular limiting blocks (3). A lifting slider assembly is mounted on the arc-shaped concave fitting blocks (2). The lifting slider assembly is movably inserted into the inner side of the lifting slide block assembly. A lifting threaded rod (4) is mounted on the concave annular limiting blocks (3). A lifting threaded tube (5) is mounted on the arc-shaped concave fitting blocks (2). The lifting threaded tube (5) is movably fitted onto the lifting threaded rod (4). The arc-shaped concave fitting blocks... (2) An inclined pressing block (6) is installed on the upper part, a bevel gear (8) is installed on the lifting threaded rod (4), a circular slide rail (7) is installed on the inner side of the concave circular ring limiting block (3), a circular slider (9) is installed on the inner side of the circular slide rail (7), a bevel rack (10) is installed on the circular slider (9), the bevel rack (10) meshes with the multiple bevel gears (8), a drive groove (11) is opened on the concave circular ring limiting block (3), an angle drive machine (13) is installed on the inner side of the drive groove (11), an angle gear (12) is installed on the angle drive machine (13), an angle set rack (14) is installed on the circular slider (9), and the angle set rack (14) meshes with the angle gear (12).

2. The quick-mount check valve of claim 1, wherein, A pressure sensor is installed on the arc concave sleeve block (2), and a fixing threaded hole is installed on the valve body (1), with a fixing bolt installed on the inner side of the fixing threaded hole.

3. A quick-mount check valve according to claim 2, wherein The concave annular limiting block (3) is also provided with a manual operation interface, which is connected to the output shaft of the lifting threaded rod (4) or the angle drive machine (13).

4. The quick-mount check valve of claim 3, wherein, The inclined extrusion block (6) has an elastic sealing layer on its working surface, and the elastic sealing layer is made of rubber.

5. A quick-mount check valve according to claim 4, wherein A control unit is installed on the valve body (1), the pressure sensor is signal-connected to the control unit, and the angle drive (13) is electrically connected to the control unit.

6. A quick-install check valve according to claim 5, characterized in that, The concave annular limiting block (3) has an openable maintenance cover on its outer side.

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