Threaded soft sealing gate valve

Abstract

The utility model relates to the technical field of gate valves, in particular to a threaded soft sealing gate valve which comprises a gate valve body, a connector and a pressurizing assembly, the connector is connected along an inlet and an outlet at the two ends of the gate valve body, the pressurizing assembly is connected to one side of the gate valve body, a first inner threaded opening is formed in the inner side of the connector, and a rubber sleeve is arranged in the first inner threaded opening. Through the assembly composed of the gate valve, the connector and the pressurizing assembly, a set of threaded soft sealing gate valve with high connection sealing performance is provided for a pipeline system, and through the arrangement of the pressurizing soft sealing structure at the connector of the gate valve, after an external pipeline is in threaded connection with the connector, the external pipeline can be sealed on the basis of the pressurizing soft sealing structure; sealing performance of connection between the pipeline and the gate valve is greatly improved, and using stability of a pipeline system is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gate valves, and particularly relates to a threaded soft-sealing gate valve. Background Art

[0002] Threaded soft-sealing gate valves are widely used in multiple fields, including the water supply and drainage pipeline systems in industries such as electric power, water conservancy, metallurgy, chemical industry, and urban construction.

[0003] After the thread of the existing gate valve is connected to the pipeline, due to the material hardness between the pipeline and the thread, the contact fit between the pipeline and the thread is poor, affecting the sealing performance between the gate valve interface and the pipeline. Therefore, a threaded soft-sealing gate valve is proposed to provide a set of threaded soft-sealing gate valves with high connection sealing performance for the pipeline system. By setting a pressurizable soft-sealing structure at the interface of the gate valve, after the external pipeline is threadedly connected to the interface, based on the pressurizable soft-sealing structure, the sealing performance of the connection between the pipeline and the gate valve can be greatly improved, and the stability of the pipeline system during use can be improved. Summary of the Utility Model

[0004] Aiming at the problems in the prior art, the utility model provides a threaded soft-sealing gate valve to provide a set of threaded soft-sealing gate valves with high connection sealing performance for the pipeline system. By setting a pressurizable soft-sealing structure at the interface of the gate valve, after the external pipeline is threadedly connected to the interface, based on the pressurizable soft-sealing structure, the sealing performance of the connection between the pipeline and the gate valve can be greatly improved, and the stability of the pipeline system during use can be improved.

[0005] The technical solution adopted by the utility model to solve its technical problems is a threaded soft-sealing gate valve, which includes a gate valve, an interface, and a pressurization component. The interface is connected along the two ends of the gate valve, the pressurization component is connected to one side of the gate valve, a first internal thread is provided inside the interface, and a rubber sleeve is arranged inside the first internal thread.

[0006] By adopting the above technical solution, through the components composed of the gate valve, the interface, and the pressurization component, a set of threaded soft-sealing gate valves with high connection sealing performance is realized for the pipeline system. By setting a pressurizable soft-sealing structure at the interface of the gate valve, after the external pipeline is threadedly connected to the interface, based on the pressurizable soft-sealing structure, the sealing performance of the connection between the pipeline and the gate valve can be greatly improved, and the stability of the pipeline system during use can be improved.

[0007] Specifically, an external thread for threaded connection with the first internal thread is provided on the outer periphery of the rubber sleeve, and an internal thread for threaded connection with the external pipeline is provided on the inner periphery of the rubber sleeve.

[0008] By adopting the above technical solution, the outer periphery of the rubber sleeve is designed with an external thread that is threadedly connected to the first internal thread port, ensuring that the rubber sleeve is firmly installed in the interface. At the same time, the inner periphery of the rubber sleeve is provided with an internal thread for threaded connection with the external pipeline, ensuring a tight connection with the external pipeline.

[0009] Specifically, a hollow cavity is provided inside the rubber sleeve, and a nozzle is provided at the end of the rubber sleeve. The nozzle is embedded in the interface.

[0010] Specifically, the pressure boosting component includes a support seat connected to the valve body of the gate valve. A sleeve is connected inside the support seat, and an internal thread sleeve is connected to the top inside the sleeve. A screw rod is inserted into the internal thread of the internal thread sleeve;

[0011] The bottom of the screw rod is connected with a piston. A sealing ring for sealing with the inner wall of the sleeve is arranged on the outer periphery of the piston. An internal hexagonal hole is opened at the top of the screw rod.

[0012] By adopting the above technical solution, the pressure inside the rubber sleeve is increased through the pressure boosting component, thereby improving the sealing effect.

[0013] Specifically, air ports are respectively opened on both sides of the bottom of the sleeve, and the air ports are connected to the nozzle through pipelines

[0014] The beneficial effects of the present utility model: A component composed of a gate valve, an interface and a pressure boosting component realizes providing a threaded soft-sealing gate valve with high connection sealing performance for the pipeline system. By setting a pressurizable soft sealing structure at the interface of the gate valve, after the external pipeline is threadedly connected to the interface, based on the pressurizable soft sealing structure, the sealing performance of the connection between the pipeline and the gate valve can be greatly improved, and the stability of the pipeline system in use can be improved, solving the problem that after the threaded port of the existing gate valve is connected to the pipeline, due to the material hardness between the pipeline and the threaded port, the contact fit between the pipeline and the threaded port is poor, affecting the sealing performance between the gate valve interface and the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present utility model will be further described below with reference to the drawings and embodiments.

[0016] Figure 1 is the overall schematic diagram of the present utility model;

[0017] Figure 2 is the schematic diagram of the first internal thread port of the present utility model;

[0018] Figure 3 is the cross-sectional schematic diagram of the rubber sleeve of the present utility model;

[0019] Figure 4 is the schematic diagram of the pressure boosting component of the present utility model;

[0020] Figure 5Schematic diagram of the screw of the present utility model;

[0021] In the figure: 1, gate valve; 2, interface; 21, first internal thread port; 22, rubber sleeve; 23, hollow cavity; 24, air nozzle; 3, pressure boosting component; 31, support seat; 32, sleeve; 33, internal thread sleeve; 34, screw; 341, piston; 342, sealing ring; 343, internal hexagonal hole; 35, air port. Specific implementation manner

[0022] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation manners.

[0023] In order to improve the stability of the pipeline system during use, as Figures 1-5 shown, a threaded soft-sealing gate valve of the present utility model includes a gate valve 1, an interface 2 and a pressure boosting component 3. The interface 2 is connected along the two ends of the gate valve 1. The pressure boosting component 3 is connected to one side of the gate valve 1. A first internal thread port 21 is provided inside the interface 2, and a rubber sleeve 22 is arranged inside the first internal thread port 21.

[0024] During use, a threaded soft-sealing gate valve with high connection sealing performance is provided for the pipeline system through the gate valve 1, the interface 2 and the pressure boosting component 3. By providing a soft sealing structure with pressure boosting at the interface 2 of the gate valve 1, after the external pipeline is threadedly connected to the interface 2, the sealing performance between the pipeline and the gate valve can be greatly improved based on the soft sealing structure with pressure boosting, and the stability of the pipeline system during use can be improved.

[0025] The present utility model further includes that an external thread for threaded connection with the first internal thread port 21 is provided on the outer circumference of the rubber sleeve 22, and an internal thread for threaded connection with the external pipeline is provided on the inner circumference of the rubber sleeve 22.

[0026] During use, by designing an external thread for threaded connection with the first internal thread port 21 on the outer circumference of the rubber sleeve 22, it is ensured that the rubber sleeve is firmly installed inside the interface. At the same time, an internal thread for threaded connection with the external pipeline is provided on the inner circumference of the rubber sleeve, ensuring a tight connection with the external pipeline.

[0027] The present utility model further includes that a hollow cavity 23 is provided inside the rubber sleeve 22, an air nozzle 24 is provided at the end of the rubber sleeve 22, and the air nozzle 24 is embedded in the interface 2.

[0028] The pressure boosting component 3 includes a support seat 31 connected to the valve body of the gate valve 1. A sleeve 32 is connected inside the support seat 31. An internal thread sleeve 33 is connected to the top inside the sleeve 32, and a screw 34 is threadedly inserted into the internal thread sleeve 33;

[0029] The bottom of the screw 34 is connected with a piston 341. A sealing ring 342 for sealing with the inner wall of the sleeve 32 is arranged on the outer periphery of the piston 341. An inner hexagonal hole 343 is formed at the top of the screw 34.

[0030] During use, the pressure in the rubber sleeve is increased by the pressurizing assembly 3, thereby improving the sealing effect.

[0031] The utility model further includes that air ports 35 are respectively formed on both sides of the bottom of the sleeve 32, and the air ports 35 are connected with an air nozzle 24 through a pipeline.

[0032] When the utility model is in use, first, the threaded joint of the external pipeline is inserted into the rubber sleeve 22 of the interface 2 and is threadedly connected with the internal thread of the rubber sleeve 22. Based on the rubber material of the rubber sleeve 22, a preliminary rubber seal is formed. Subsequently, the inner hexagonal hole 343 of the screw 34 is inserted and rotated by a hexagonal wrench, so that the piston 341 descends in the sleeve 32, and the air in the sleeve 32 is discharged and pressurized into the hollow cavity 23 of the rubber sleeve 22, increasing the pressure on the contact surface between the rubber sleeve 22 and the external pipeline, thereby achieving higher sealing performance, significantly improving the sealing performance and use stability of the pipeline system, reducing the leakage problem caused by poor sealing, having a certain elastic adaptability, and being able to better cope with pipeline vibration and minor deformation.

[0033] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of protection required by the utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims

1. A silk-threaded soft-sealing gate valve, characterized in that, It includes a gate valve (1), an interface (2) and a pressurizing component (3). The interface (2) is connected along the inlets and outlets at both ends of the gate valve (1). The pressurizing component (3) is connected to one side of the gate valve (1). A first internal thread port (21) is provided inside the interface (2), and a rubber sleeve (22) is arranged inside the first internal thread port (21).

2. The silk-threaded soft-sealed gate valve according to claim 1, wherein An external thread for threaded connection with the first internal thread port (21) is provided on the outer circumference of the rubber sleeve (22), and an internal thread for threaded connection with an external pipe is provided on the inner circumference of the rubber sleeve (22).

3. A threaded soft-sealing gate valve according to claim 2, characterized in that, A hollow cavity (23) is arranged inside the rubber sleeve (22), and an air nozzle (24) is arranged at the end of the rubber sleeve (22). The air nozzle (24) is embedded in the interface (2).

4. The silk-threaded soft-sealing gate valve according to claim 3, wherein, The pressurizing component (3) includes a support seat (31) connected to the valve body of the gate valve (1). A sleeve (32) is connected inside the support seat (31). An internal thread sleeve (33) is connected to the top inside the sleeve (32), and a screw rod (34) is threadedly inserted into the internal thread sleeve (33). A piston (341) is connected to the bottom of the screw rod (34). A sealing ring (342) for sealing with the inner wall of the sleeve (32) is arranged on the outer circumference of the piston (341). An internal hexagonal hole (343) is provided at the top of the screw rod (34).

5. A threaded soft-sealing gate valve according to claim 4, characterized in that, Air ports (35) are respectively provided on both sides of the bottom of the sleeve (32), and the air ports (35) are connected to the air nozzle (24) through pipes.

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