Quick release structure for connecting position of stainless steel ball valve

Abstract

The utility model provides a quick release structure for a connection position of a stainless steel ball valve, which belongs to the technical field of stainless steel ball valves, and comprises a main body, a joint and a locking device, a ball valve is arranged in the main body, the joint is arranged at the inlet and outlet end of the main body, and the locking device is arranged at the inlet and outlet end of the main body. A mechanical stress dispersion structure is arranged in the connector and arranged in the radial direction in the body, and the locking device is installed at the connecting position of the stainless steel ball valve and particularly located at a threaded connector between the connector and a pipeline to be connected. The mechanical stress dispersion structure directly acts on the threaded connector, the locking device comprises at least one spring loading mechanism and one or more sets of pawl assemblies, the pawl assemblies are located at the threaded connector, stress of the connecting part is relieved through the pressure self-balancing technology, and convenient and fast disassembly and assembly are achieved with the assistance of a one-key release device. And rapid, safe and reliable disassembly and assembly operation is realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of stainless steel ball valves, and in particular relates to a quick-release structure for a connection position of a stainless steel ball valve. Background Art

[0002] In modern industrial systems, stainless steel ball valves are widely used as control components with stable performance, strong corrosion resistance and long service life. They are widely used in fluid pipeline control systems in the fields of petroleum, chemical industry, electric power, metallurgy, etc. However, in actual operation and maintenance, the traditional stainless steel ball valve connection method has some significant technical difficulties.

[0003] At present, the quick-release structure used for the connection position of stainless steel ball valves mostly adopts threaded connection or flange connection. Although it has certain versatility and convenience, under high-pressure conditions, due to uneven force or excessive stress, the connecting thread is easily damaged or even broken, resulting in the inability to disassemble and install the valve normally, which not only affects production efficiency, but also increases the equipment maintenance cost. At the same time, with the influence of pressure fluctuations and environmental vibrations, the existing connection structure often becomes loose, which may not only cause leakage and threaten production safety, but also affect the long-term stability of the valve sealing performance. In addition, for occasions that require frequent replacement or cleaning and disinfection, such as food processing, biopharmaceuticals and other industries with high hygiene requirements, the existing quick-release structure often cannot meet the requirements of rapid and non-destructive disassembly and assembly, and it is difficult to disassemble safely under high pressure, which poses a potential risk to the safety of operators and the continuous operation of the system. Utility Model Content

[0004] In view of this, the utility model provides a quick-release structure for the connection position of a stainless steel ball valve, which can solve the problem that the connection parts of the stainless steel ball valve are damaged due to excessive force under high-pressure conditions.

[0005] The utility model is achieved in this way:

[0006] The utility model provides a quick-release structure for a stainless steel ball valve connection position, which includes a main body, a joint, and a locking device, wherein a ball valve is arranged in the main body, the joint is arranged at the inlet and outlet ends of the main body, a mechanical stress dispersion structure is arranged inside the joint, and the mechanical stress dispersion structure is arranged in the radial direction of the main body, and the locking device is installed at the stainless steel ball valve connection position, specifically at the threaded interface between the joint and the pipe to be connected;

[0007] Wherein, the mechanical stress dispersion structure directly acts on the threaded interface.

[0008] On the basis of the above technical solution, the quick-release structure for the connection position of a stainless steel ball valve of the utility model can also be improved as follows:

[0009] Wherein, the locking device comprises at least one spring loading mechanism and one or more groups of pawl assemblies, and the pawl assemblies are located at the threaded interface.

[0010] The spring loading mechanism is arranged near the ratchet assembly as a driving element. When the valve and the pipeline are correctly connected, the spring provides a pre-tightening force to make the ratchet firmly embedded in the locking tooth groove of the other party, ensuring that a stable connection state can be maintained in a vibration environment.

[0011] Furthermore, the spring loading mechanism is provided with a superimposed structure of at least two layers of spring structures, and each layer of the spring structure includes a spring, a spring seat, and a push rod.

[0012] Furthermore, the mechanical stress dispersion structure includes an annular groove, a bellows and a floating sleeve; the annular groove is located on the inner wall of the joint, the bellows is installed around the central axis of the joint, and the floating sleeve is arranged inside the joint and connected to the main body.

[0013] Furthermore, the pawl assembly includes a pawl body and a locking tooth matched with the pawl body, the locking tooth is designed on the flange of the pipe to be connected, and the pawl body is engaged with the locking tooth through elastic deformation.

[0014] When the valve is docked with a pipeline or other equipment, the pawl body will be aligned and inserted into the locking groove on the other party's fixing device, and anti-loosening locking is achieved through mechanical bite.

[0015] Furthermore, the connector further comprises a release device, which is located at the top of the connector and is used to contact the locking state of the connector.

[0016] Furthermore, the main body is made of stainless steel as a whole, and the surface is treated with anti-corrosion.

[0017] Furthermore, the anti-corrosion treatment includes electrochemical passivation, plastic spraying, coating of anti-corrosion paint, and ion nitriding.

[0018] Furthermore, a sealing ring is provided between the main body and the joint, and the sealing ring is made of silicone material.

[0019] Furthermore, the release device includes a button, a handle, a solenoid valve, a pressure sensor, a pneumatic / hydraulic drive component and a corresponding control circuit.

[0020] The implementation of a release device usually includes the following components and their functional descriptions:

[0021] Button or handle: As an operating interface, the user triggers the release mechanism by pressing a button or turning a handle. Once operated, the button or handle will initiate an internal control signal to inform the system to prepare for unlocking or separation.

[0022] Solenoid valve: When the control system receives the release command, the solenoid valve will act according to the preset program or manual control command. For hydraulic systems, the solenoid valve can control the on and off of the hydraulic oil circuit to change the flow direction of the fluid or release the internal pressure; for pneumatic systems, it is used to open or close the air source so that the air pressure can drive the relevant components to move.

[0023] Pressure sensor: monitors the pressure status of the connector or valve system in real time and feeds back the pressure status to the control circuit. When the internal pressure drops to a safe range, the pressure sensor sends a signal to the control system, allowing the one-button release device to perform the unlocking operation.

[0024] Pneumatic / hydraulic drive components: including but not limited to power elements such as cylinders, hydraulic cylinders or motors, which receive signals from solenoid valves or directly from control circuits to generate linear or rotational motion, thereby releasing the lock on the connection position, allowing the stainless steel ball valve to be quickly removed from the pipeline or other equipment.

[0025] The corresponding control circuit: integrates the electronic control unit (ECU) and the logic controller, which is responsible for analyzing sensor data, processing input signals, and coordinating the work of various components. It determines when to activate the solenoid valve and other drive components according to the set logic rules to ensure the safety and reliability of the entire release process.

[0026] Compared with the prior art, the quick-release structure for the connection position of a stainless steel ball valve provided by the utility model has the following beneficial effects:

[0027] Pressure self-balancing function: The newly designed pressure self-balancing joint can evenly distribute the pressure through the internal mechanical structure when the internal pressure increases, avoiding damage caused by excessive local force, and realizing stable connection and convenient disassembly of the valve under high pressure conditions;

[0028] One-button release device: When the internal pressure of the valve is reduced to a safe level, the one-button release device can quickly release the lock state, and rapid separation can be completed without professional tools, greatly improving the efficiency of valve replacement and maintenance;

[0029] Anti-vibration locking system: The added spring-loaded locking device combined with the pawl assembly forms a strong anti-vibration failure mechanism, which can ensure the reliability of valve connection even in strong vibration environments and reduce loosening and leakage caused by vibration;

[0030] Easy and safe operation: The quick-disassembly structure of the utility model simplifies the operation process, allowing operators to quickly and accurately disassemble and assemble the valve without special skills, especially under pressurized conditions, and can perform disassembly tasks safely and efficiently. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments of the utility model will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 This is an example diagram of a quick-release structure for a stainless steel ball valve connection position;

[0033] Figure 2 A perspective view of a quick-release structure for a stainless steel ball valve connection position;

[0034] Figure 3 A cross-sectional view of a quick-release structure for a stainless steel ball valve connection position;

[0035] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0036] 10. Main body; 20. Joint; 21. Mechanical stress dispersion structure; 30. Locking device; 31. Spring loading mechanism. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the implementation mode of the present invention clearer, the technical solution in the implementation mode of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the implementation mode of the present invention.

[0038] like Figure 1 , Figure 2 As shown, it is an embodiment of a quick-release structure for a stainless steel ball valve connection position provided by the utility model. In this embodiment, it includes a main body 10, a joint 20, and a locking device 30, wherein a ball valve is arranged in the main body 10, the joint 20 is arranged at the inlet and outlet ends of the main body 10, a mechanical stress dispersion structure 21 is arranged inside the joint 20, and the mechanical stress dispersion structure 21 is arranged in the radial direction of the main body 10, and the locking device 30 is installed at the connection position of the stainless steel ball valve, specifically at the threaded interface between the joint 20 and the pipe to be connected;

[0039] The mechanical stress dispersion structure 21 directly acts on the threaded interface.

[0040] like Figure 3As shown, in the above technical solution, the locking device 30 includes at least one spring loading mechanism 31 and one or more groups of pawl assemblies, and the pawl assemblies are located at the threaded interface.

[0041] Furthermore, in the above technical solution, the spring loading mechanism 31 is provided with a superimposed structure of at least two layers of spring structures, and each layer of the spring structure includes a spring, a spring seat, and a push rod.

[0042] Model example: Spring stacking structure:

[0043] Model name: SPS-Adaptive multi-layer preload spring system;

[0044] Description of technical features: The system includes at least two layers (such as SPS-2L, SPS-3L) of springs with different elastic coefficients and preload forces to achieve dynamic stress balance at the connection position of the stainless steel ball valve.

[0045] Furthermore, in the above technical solution, the mechanical stress dispersion structure 21 includes an annular groove, a bellows and a floating sleeve; the annular groove is located on the inner wall of the joint 20, the bellows is installed around the central axis of the joint 20, and the floating sleeve is arranged inside the joint 20 and connected to the main body 10.

[0046] Furthermore, in the above technical solution, the pawl assembly includes a pawl body and a locking tooth cooperating with the pawl body, the locking tooth is designed on the flange of the pipe to be connected, and the pawl body engages with the locking tooth through elastic deformation.

[0047] Model example: Pawl assembly:

[0048] Model name: JZC-series anti-loosening pawl mechanism;

[0049] Technical features description: JZC-XX (XX represents a specific size or specification) is composed of a pawl body made of high-hardness wear-resistant material and a corresponding locking tooth groove to ensure reliable locking in a vibration environment.

[0050] Flanges are standard parts for pipe connections. Common types include American standard ANSI, German standard DIN, national standard GB and other series. The models will vary according to the pipe diameter, pressure level, connection method (such as flat flange, convex flange, butt welding flange, etc.).

[0051] Furthermore, in the above technical solution, the connector 20 also includes a releasing device, which is located at the top of the connector 20 and is used to contact the locking state of the connector 20 .

[0052] Furthermore, in the above technical solution, the main body 10 is made of stainless steel as a whole, and the surface is treated with anti-corrosion.

[0053] Furthermore, in the above technical solution, the anti-corrosion treatment includes electrochemical passivation, plastic spraying, coating of anti-corrosion paint, and ion nitriding.

[0054] Furthermore, in the above technical solution, a sealing ring is provided between the main body 10 and the joint 20, and the sealing ring is made of silicone.

[0055] Furthermore, in the above technical solution, the release device includes a button, a handle, a solenoid valve, a pressure sensor, a pneumatic / hydraulic drive component and a corresponding control circuit.

[0056] It should be noted that the release device:

[0057] Operating components such as buttons and handles are usually designed according to ergonomics and equipment operating habits, and do not directly correspond to specific models.

[0058] Solenoid valves, pressure sensors, pneumatic / hydraulic drive components and corresponding control circuits. These components usually come from various professional manufacturers. For example, solenoid valves may be produced by brands such as SMC, Festo, ASCO, etc., and pressure sensors may come from manufacturers such as Honeywell, OMRON, WIKA, etc. The drive components and control circuits will be integrated and customized according to the overall system requirements. Each part has many models to choose from. The specific model will be determined in the actual product development stage, depending on the specific design specifications and technical requirements of the product.

[0059] Specifically, the principle of the utility model is as follows: First, in response to the stress problem under high-pressure working conditions, the utility model designs a pressure self-balancing joint. This joint is provided with a unique mechanical stress dispersion structure, such as annular grooves, bellows or floating sleeves, etc., which can convert the axial force transmitted by the fluid medium into a distributed load in radial or other directions when the valve is subjected to high pressure, thereby avoiding the connection thread from being directly subjected to excessive stress and causing damage. This ingenious design greatly improves the stability of the valve in a high-pressure environment, while ensuring that it can be easily disassembled and reassembled after the pressure is reduced;

[0060] Secondly, in order to prevent the loose connection caused by vibration, the utility model adopts a vibration-proof failure mechanism that combines a spring loading mechanism with a ratchet assembly. The spring loading mechanism may be located in the flange, threaded interface or specially designed locking area of ​​the valve connection part, and the constant pressure generated by the preloaded spring ensures that the connection is always in a tight state. The ratchet assembly includes a ratchet body and its matching locking teeth. When the valve is docked with the pipeline, the ratchet is embedded in the locking teeth to form a stable meshing, and the locking state can be maintained even in a strong vibration environment, which greatly improves the firmness and sealing of the connection;

[0061] Furthermore, in order to meet the needs of rapid disassembly and assembly, the utility model is specially equipped with a one-button release device. The device integrates buttons, handles, solenoid valves, pressure sensors, and pneumatic / hydraulic drive components, and coordinates operations through precise control circuits. When the internal pressure of the valve drops to a safe level, the operator can trigger the one-button release function by pressing a button or pulling a handle. At this time, the control system starts the solenoid valve or related drive components based on the feedback information from the pressure sensor, unlocks the quick-release connector, and realizes rapid separation between the valve and the pipeline. The entire process does not require special tools, is convenient and quick, and significantly improves work efficiency and the safety of equipment maintenance.

Claims

1. A quick-release structure for a stainless steel ball valve connection, characterized in that: The invention comprises a main body (10), a joint (20), and a locking device (30), wherein a ball valve is arranged in the main body (10), the joint (20) is arranged at the inlet and outlet ends of the main body (10), a mechanical stress dispersion structure (21) is arranged inside the joint (20), and the mechanical stress dispersion structure (21) is arranged in the radial direction inside the main body (10), and the locking device (30) is installed at the connection position of the stainless steel ball valve, specifically at the threaded interface between the joint (20) and the pipe to be connected; Wherein, the mechanical stress dispersion structure (21) directly acts on the threaded interface.

2. A quick-release structure for a stainless steel ball valve connection position according to claim 1, characterized in that: The locking device (30) comprises at least one spring loading mechanism (31) and one or more groups of pawl assemblies, wherein the pawl assemblies are located at the threaded interface.

3. A quick-release structure for a stainless steel ball valve connection position according to claim 2, characterized in that: The spring loading mechanism (31) is provided with a superimposed structure of at least two layers of spring structures, and each layer of the spring structure comprises a spring, a spring seat, and a push rod.

4. A quick-release structure for a stainless steel ball valve connection position according to claim 3, characterized in that: The mechanical stress dispersion structure (21) comprises an annular groove, a bellows and a floating sleeve; the annular groove is located on the inner wall of the joint (20), the bellows is installed around the central axis of the joint (20), and the floating sleeve is arranged inside the joint (20) and connected to the main body (10).

5. A quick-release structure for a stainless steel ball valve connection position according to claim 4, characterized in that: The pawl assembly comprises a pawl body and a locking tooth matched with the pawl body, the locking tooth is designed on the flange of the pipe to be connected, and the pawl body is engaged with the locking tooth through elastic deformation.

6. A quick-release structure for a stainless steel ball valve connection position according to claim 5, characterized in that: The connector (20) further comprises a release device, which is located at the top of the connector (20) and is used to contact the locking state of the connector (20).

7. A quick-release structure for a stainless steel ball valve connection position according to claim 6, characterized in that: The main body (10) is made entirely of stainless steel, and its surface has been treated for corrosion.

8. A quick-release structure for a stainless steel ball valve connection position according to claim 7, characterized in that: The anti-corrosion treatment includes electrochemical passivation, plastic spraying, coating of anti-corrosion paint, and ion nitriding.

9. A quick-release structure for a stainless steel ball valve connection position according to claim 8, characterized in that: A sealing ring is provided between the main body (10) and the joint (20), and the sealing ring is made of silicone material.

10. A quick-release structure for a stainless steel ball valve connection position according to claim 9, characterized in that: The release device comprises a button, a handle, a solenoid valve, a pressure sensor, a pneumatic / hydraulic driving component and a corresponding control circuit.

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