Gate type stop valve

Abstract

The utility model relates to the field of stop valves, and discloses a gate type stop valve. An inlet flange is fixedly installed on the surface of one side of the valve body, a connecting shaft is arranged on the surface of the inlet flange, a fixing ring is fixedly installed on the surface of the connecting shaft, a filtering net piece is arranged on the surface of the inner wall of the inlet flange, and a filtering net is fixedly installed on the surface of the side, away from the fixing ring, of the filtering net piece. A stop valve is not suitable for media which are provided with particles, large in viscosity or prone to coking, and due to the fact that the impurities possibly block the valve, normal flowing is affected, and even the valve cannot be normally closed or opened. When the stop valve is used, the filter screen piece is clamped into the inner wall of the flange at the inlet, and the filter screen can prevent impurities of a water source in the water inlet from entering the valve body, so that the difficulty and the workload of maintenance work are reduced, the service life of the stop valve is prolonged, and the operation efficiency and the safety of a system are improved.

Description

Technical Field

[0001] This application belongs to the technical field of globe valves, and specifically relates to a gate-type globe valve. Background Art

[0002] Nowadays, the demand for the use of water sources is increasing, and the laying of water pipes is more extensive. When laying water pipes, valves are needed for control. The types of valves are becoming more and more diverse. With the continuous development of technology, people's requirements for the manufacturing process of globe valves are also getting higher and higher. Globe valves mainly play the roles of cutting off and throttling in pipeline systems or production devices. It can effectively cut off the fluid passage, prevent the medium from flowing, and at the same time can also regulate the flow rate. Globe valves have a wide range of applications in industrial production, and their functions of cutting off, regulating, and throttling make them an indispensable component in pipeline systems.

[0003] For example, the application with the publication number CN214946411U discloses a manual quick-opening globe valve, including a globe valve body. A sealing plate is fixedly connected to the center of the inner cavity of the globe valve body. A water passing groove is opened in the center of the sealing plate. A sealing ring is fixedly connected to the inner surface of the water passing groove. A connecting head is fixedly connected to the output end of the globe valve body. A function block is fixedly connected to the left side of the top of the globe valve body. Springs are fixedly connected to the top and bottom of both sides of the inner cavity of the function block, and a limiting rod is fixedly connected to the inner surface of the spring.

[0004] However, the globe valve in this application cannot filter the water source of the incoming water. After long-term use, it will affect the sealing performance of the valve, affecting the normal operation and service life of the valve. Now, a gate-type globe valve that can filter debris at the water inlet is provided. Summary of the Utility Model

[0005] The purpose of this application is to: in order to solve the problem that the globe valve mentioned above cannot filter the water source of the incoming water, which will affect the sealing performance of the valve, the normal operation and service life of the valve after long-term use, a gate-type globe valve is provided.

[0006] The technical solution adopted in this application is as follows: A gate-type globe valve, a flange at the inlet is fixedly installed on one side surface of the valve body. A connecting shaft is arranged on the surface of the flange at the inlet. A fixing ring is fixedly installed on the surface of the connecting shaft. A filter mesh sheet is arranged on the inner wall surface of the flange at the inlet. A filter net is fixedly installed on the side surface of the filter mesh sheet away from the fixing ring.

[0007] By adopting the above technical solution, the globe valve is not suitable for media with particles, high viscosity or easy coking, because these impurities may block the valve, affect the normal flow, and even cause the valve to fail to close or open normally. When this device is in use, the filter mesh sheet is snapped into the inner wall of the flange at the inlet. The filter can prevent impurities in the water source at the inlet from entering the valve body, reducing the difficulty and workload of maintenance work, increasing the service life of the globe valve, and improving the operating efficiency and safety of the system.

[0008] In a preferred embodiment, installation holes are provided on the surface of the flange at the inlet, and through holes are provided on the surface of the fixing ring. The through holes match the size of the installation holes.

[0009] By adopting the above technical solution, after the installation of the filtration system is completed, the user fits the fixing ring together with the flange at the inlet and fixes it with bolts. After the fixing is completed, the stones and other sundries in the water source entering the globe valve will be intercepted by the filter mesh. At the same time, the water source flowing into the globe valve is relatively clean, and there will be no excessive sundries remaining inside the globe valve. The user can install the filtration system relatively easily and it is also relatively easy to replace, facilitating disassembly and assembly.

[0010] In a preferred embodiment, a lower valve cover is fixedly installed on the upper surface of the valve body. A gasket is provided on the upper surface of the lower valve cover. An upper valve cover is movably connected to the upper surface of the gasket. Fixing holes are provided on the surfaces of the upper valve cover and the lower valve cover, and fixing bolts are movably inserted into the surfaces of the fixing holes.

[0011] By adopting the above technical solution, when the valve is closed, the lower valve cover and the upper valve cover act together with the valve body to form a closed space, ensuring that the fluid cannot leak out of the valve. At the same time, it plays a role in protecting the internal mechanical components, preventing external impurities, dust or other pollutants from entering the valve interior, thereby maintaining the normal operation of the valve and extending its service life.

[0012] In a preferred embodiment, a valve stem is movably inserted into the upper surface of the upper valve cover, and a handwheel is fixedly installed on the upper surface of the valve stem.

[0013] By adopting the above technical solution, the valve stem not only supports and fixes the valve flap through its function of converting rotational motion into linear motion, ensuring that the valve flap can open and close smoothly, but also enhances the durability and sealing performance of the valve through its design and material.

[0014] In a preferred embodiment, a fixing column is movably installed on the surface of the valve stem.

[0015] By adopting the above technical solution, it plays a role in supporting and fixing the valve stem, preventing the valve stem from undergoing plastic deformation during long-term operation.

[0016] In a preferred embodiment, a water outlet flange is welded to the surface of the valve body corresponding to the flange at the inlet.

[0017] By adopting the above technical solution, the water outlet flange provides reliable connection and sealing functions, ensures the safe operation of the pipeline system, and provides convenient and quick maintenance and replacement options when needed.

[0018] In a preferred embodiment, threaded holes are provided on the surface of the water outlet flange, and fixing screws are movably inserted into the surfaces of the threaded holes.

[0019] By adopting the above technical solution, the fixing screws can fixedly connect the outlet pipeline and the stop valve, and can ensure the stability of the connection between the stop valve and the outlet pipeline.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of the present application are as follows:

[0021] In the present application, the stop valve is not suitable for media with particles, high viscosity or easy coking, because these impurities may block the valve, affect the normal flow, and even cause the valve to fail to close or open normally. When the device is in use, the filter mesh piece is snapped into the inner wall of the flange at the inlet, and the filter can prevent impurities in the water source at the inlet from entering the valve body, reduce the difficulty and workload of maintenance work, increase the service life of the stop valve, and improve the operation efficiency and safety of the system.

[0022] When the valve is closed, the lower valve cover and the upper valve cover act together with the valve body to form a closed space, ensuring that the fluid cannot leak out of the valve, and at the same time playing a role in protecting the internal mechanical components, preventing external impurities, dust or other pollutants from entering the valve interior, thereby maintaining the normal operation of the valve and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of the first perspective of the gate stop valve of the present application;

[0024] Figure 2 is a schematic structural diagram of the second perspective of the gate stop valve in the present application;

[0025] Figure 3 is a schematic structural diagram of the filter mesh in the present application.

[0026] Reference numerals in the figures: 1, valve body; 2, lower valve cover; 3, upper valve cover; 4, valve stem; 5, handwheel; 6, fixed column; 7, fixing bolt; 8, fixing screw; 9, water outlet flange; 10, gasket; 11, connecting shaft; 12, through hole; 13, fixing ring; 14, mounting hole; 15, flange at the inlet; 16, filter mesh piece; 17, filter mesh. Detailed implementation manners

[0027] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the embodiments of the present application. Apparently, the described embodiments are some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without making creative efforts shall fall within the protection scope of the present application.

[0028] Refer to Figures 1-3 ,

[0029] Embodiment:

[0030] A gate globe valve, a flange at the inlet 15 is fixedly installed on one side surface of the valve body 1. A connecting shaft 11 is arranged on the surface of the flange at the inlet 15. A fixing ring 13 is fixedly installed on the surface of the connecting shaft 11. A filter screen 16 is arranged on the inner wall surface of the flange at the inlet 15. A filter net 17 is fixedly installed on the side surface of the filter screen 16 away from the fixing ring 13.

[0031] The globe valve is not applicable to media with particles, high viscosity or easy coking, because these impurities may block the valve, affect the normal flow, and even cause the valve to fail to close or open normally. When the device is in use, the filter screen 16 is snapped into the inner wall of the flange at the inlet 15. The filter net 17 can prevent impurities in the water source at the inlet from entering the valve body 1, reducing the difficulty and workload of maintenance work, increasing the service life of the globe valve, and improving the operation efficiency and safety of the system.

[0032] Mounting holes 14 are provided on the surface of the flange at the inlet 15, and through holes 12 are provided on the surface of the fixing ring 13. The sizes of the through holes 12 and the mounting holes 14 match. After the installation of the filtering system is completed, the user fits the fixing ring 13 and the flange at the inlet 15 together and fixes them with bolts. After the fixing is completed, stones and other sundries in the water source entering the globe valve will be intercepted by the filter net 17. At the same time, the water source flowing into the globe valve is relatively clean, and there will be no excessive sundries remaining inside the globe valve. The user can install the filtering system relatively easily and it is also relatively easy to replace, facilitating disassembly and assembly.

[0033] The upper surface of the valve body 1 is fixedly installed with a lower valve cover 2. A gasket 10 is arranged on the upper surface of the lower valve cover 2. The upper surface of the gasket 10 is movably connected with an upper valve cover 3. Fixing holes are provided on the surfaces of the upper valve cover 3 and the lower valve cover 2, and fixing bolts 7 are movably inserted into the surfaces of the fixing holes. When the lower valve cover 2 and the upper valve cover 3 are in the closed state of the valve, they act together with the valve body 1 to form a closed space, ensuring that the fluid cannot leak out of the valve. At the same time, it plays a role in protecting the internal mechanical components, preventing external impurities, dust or other pollutants from entering the valve interior, thereby maintaining the normal operation of the valve and extending its service life.

[0034] A valve stem 4 is movably inserted into the upper surface of the upper valve cover 3. A handwheel 5 is fixedly installed on the upper surface of the valve stem 4. The function of the valve stem 4 to convert its rotational motion into linear motion not only supports and fixes the valve flap, ensuring that the valve flap can be smoothly opened and closed, but also enhances the durability and sealing performance of the valve through its design and material.

[0035] A fixing column 6 is movably installed on the surface of the valve stem 4. It plays a role in supporting and fixing the valve stem 4, preventing the valve stem 4 from generating plastic deformation during long-term operation.

[0036] One side surface of the valve body 1 corresponding to the flange 15 at the inlet is welded with an outlet flange 9. The outlet flange 9 provides reliable connection and sealing functions, ensuring the safe operation of the pipeline system and providing convenient and quick maintenance and replacement options when needed.

[0037] Threaded holes are provided on the surface of the outlet flange 9, and fixing screws 8 are movably inserted into the surfaces of the threaded holes. The fixing screws 8 can fixedly connect the outlet pipeline and the globe valve, ensuring the stability of the connection between the globe valve and the outlet pipeline.

[0038] The implementation principle of an embodiment of the gate-type globe valve in this application is as follows:

[0039] The globe valve is not suitable for media with particles, high viscosity or easy coking, because these impurities may block the valve, affect the normal flow, and even cause the valve to fail to close or open normally. When this device is in use, the filter mesh 16 is snapped into the inner wall of the flange 15 at the inlet. The filter 17 can prevent impurities in the water source at the inlet from entering the valve body 1, reducing the difficulty and workload of maintenance work, increasing the service life of the globe valve, and improving the operating efficiency and safety of the system.

[0040] When the lower valve cover 2 and the upper valve cover 3 are in the closed state of the valve, they act together with the valve body 1 to form a closed space, ensuring that the fluid cannot leak out of the valve. At the same time, it plays a role in protecting the internal mechanical components, preventing external impurities, dust or other pollutants from entering the valve interior, thereby maintaining the normal operation of the valve and extending its service life.

[0041] The valve screw rod 4 not only supports and fixes the valve flap through its function of converting rotational motion into linear motion, ensuring that the valve flap can be opened and closed smoothly, but also enhances the durability and sealing performance of the valve through its design and material. The outlet flange 9 provides reliable connection and sealing functions, ensuring the safe operation of the pipeline system and providing convenient and quick maintenance and replacement options when needed.

[0042] The above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A gate type stop valve, comprising a valve body (1), characterized in that: An inlet flange (15) is fixedly mounted on one side surface of the valve body (1), a connecting shaft (11) is provided on the surface of the inlet flange (15), a fixing ring (13) is fixedly mounted on the surface of the connecting shaft (11), a filter mesh (16) is provided on the inner wall surface of the inlet flange (15), and a filter screen (17) is fixedly mounted on the side surface of the filter mesh (16) away from the fixing ring (13).

2. A gate type stop valve according to claim 1, characterized in that: A mounting hole (14) is provided on the surface of the inlet flange (15), and a through hole (12) is provided on the surface of the fixing ring (13). The through hole (12) matches the size of the mounting hole (14).

3. A gate type stop valve according to claim 1, characterized in that: A lower valve cover (2) is fixedly mounted on the upper surface of the valve body (1), a gasket (10) is provided on the upper surface of the lower valve cover (2), an upper valve cover (3) is movably connected to the upper surface of the gasket (10), fixing holes are provided on the surfaces of the upper valve cover (3) and the lower valve cover (2), and fixing bolts (7) are movably inserted into the surfaces of the fixing holes.

4. A gate type stop valve as claimed in claim 3, characterized in that: A valve screw rod (4) is movably inserted into the upper surface of the upper valve cover (3), and a hand wheel (5) is fixedly mounted on the upper surface of the valve screw rod (4).

5. A gate type stop valve as claimed in claim 4, characterized in that: A fixing column (6) is movably mounted on the surface of the valve screw rod (4).

6. A gate type stop valve according to claim 1, characterized in that: A water outlet flange (9) is welded to a surface of one side of the valve body (1) corresponding to the inlet flange (15).

7. A gate type stop valve as claimed in claim 6, characterized in that A threaded hole is provided on the surface of the water outlet flange (9), and a fixing screw (8) is movably inserted into the surface of the threaded hole.

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