Self-control all-welded ball valve

Abstract

The utility model relates to the technical field of ball valves, and discloses a self-control type all-welded ball valve which comprises a valve body, an anti-corrosion assembly is arranged on the periphery of the valve body and used for preventing the ball valve from being corroded by chemical substances and moisture, a valve seat is arranged on the top of the valve body, a rotating disc is arranged on one side of the valve seat, and a valve rod is arranged on the rotating disc. A valve rod is fixedly connected to the bottom of the valve seat, a ball is fixedly connected to the bottom of the valve rod, a connecting pipe is fixedly connected to the bottom of the valve body, a bottom plate is slidably connected into the connecting pipe, a first spring is fixedly connected to the top of the bottom plate, and a baffle is fixedly connected to the top of the first spring. The periphery of the baffle is slidably connected into the connecting pipe. The spring gives elasticity to the baffle, fluid impact is buffered, stable operation of the valve is guaranteed, fixation of the bottom plate can be relieved by pulling the pull ring, the spring and the baffle are convenient to disassemble and check, and the situation that normal use and performance of the valve are affected due to the fact that the buffering effect of the spring or the baffle is reduced is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valves, in particular to a self-controlled fully welded ball valve. Background Art

[0002] A ball valve is a valve that uses a ball as a closing member. The ball is rotated to control the on / off state of the medium flow in the pipeline. The self-controlled fully welded ball valve is an industrial valve widely used in pipeline systems. It has the advantages of no leakage, high strength and long life, and is suitable for applications requiring high sealing and durability.

[0003] The self-controlled fully welded ball valve includes a valve body, which is the main structural part of the ball valve. The self-controlled fully welded ball valve includes a ball, which is used to open or close the flow of the medium. The self-controlled fully welded ball valve includes a valve seat, which, by cooperating with the ball, can achieve the sealing function of the valve to prevent the leakage of the medium. The self-controlled fully welded ball valve also includes a valve stem, which drives the ball to rotate by rotating, thereby realizing the opening and closing operation of the valve.

[0004] The existing automatic fully welded ball valve lacks a buffer structure, resulting in a large impact force when closing the valve, thereby causing equipment damage or system failure. Therefore, an automatic fully welded ball valve is proposed to solve the above problem. Utility Model Content

[0005] In order to make up for the above deficiencies, the utility model provides a self-controlled fully welded ball valve, which aims to improve the problem in the prior art of lacking a buffer structure and causing equipment damage or system failure.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A self-controlled fully welded ball valve comprises a valve body, an anti-corrosion component is provided on the periphery of the valve body, the anti-corrosion component is used to prevent the ball valve from being corroded by chemicals and moisture, a valve seat is provided on the top of the valve body, a turntable is provided on one side of the valve seat, a valve stem is fixedly connected to the bottom of the valve seat, a ball is fixedly connected to the bottom of the valve stem, a connecting pipe is fixedly connected to the inside of the connecting pipe with a bottom plate slidably connected, a spring is fixedly connected to the top of the bottom plate, a baffle is fixedly connected to the top of the spring, an outer periphery of the baffle is slidably connected to the inside of the connecting pipe, a fixing rod is slidably connected to one side of the inside of the connecting pipe, an end of the fixing rod away from the connecting pipe is fixedly connected to a pull ring, and an end of the fixing rod away from the pull ring is slidably connected to the inside of the bottom plate;

[0008] As a further description of the above technical solution:

[0009] The anti-corrosion component includes an epoxy resin coating, the epoxy resin coating is coated on the periphery of the valve body, and the periphery of the epoxy resin coating is coated with a polyurethane coating;

[0010] As a further description of the above technical solution:

[0011] The outer periphery of the fixing rod 1 is fixedly connected to the limiting plate 1, and the outer periphery of the limiting plate 1 is slidably connected to the interior of the connecting pipe;

[0012] As a further description of the above technical solution:

[0013] A second spring is fixedly connected to the side of the first limiting plate away from the connecting pipe, and an end of the second spring away from the first limiting plate is slidably connected to the inside of the connecting pipe. The second spring is sleeved on the outer periphery of the first fixing rod.

[0014] As a further description of the above technical solution:

[0015] The top of the bottom plate is fixedly connected to a second fixing rod, the top end of which is slidably connected to the inside of the baffle, and the second fixing rod is sleeved on the outer periphery of the first spring;

[0016] As a further description of the above technical solution:

[0017] The top end of the second fixing rod is fixedly connected to the second limiting plate, and the outer periphery of the second limiting plate is slidably connected to the inside of the baffle;

[0018] As a further description of the above technical solution:

[0019] A sealing gasket is fixedly connected to the outer periphery of the baffle;

[0020] As a further description of the above technical solution:

[0021] The left and right sides of the valve body are both fixedly connected with connecting plates.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the present invention, the baffle is made elastic by the spring 1, which can effectively buffer the impact of the fluid on the valve, ensure the stable and reliable operation of the valve and extend its service life. By pulling the pull ring, the fixing rod 1 can be driven to move, thereby releasing the fixation to the bottom plate. After release, the bottom plate can be disassembled, which is convenient for checking the condition of the spring 1 and the baffle, facilitating maintenance, and preventing the spring or baffle from affecting the normal use and performance of the valve due to reduced buffering effect.

[0024] 2. In the present invention, by applying an epoxy resin coating on the periphery of the valve body, the valve body can have excellent corrosion resistance and wear resistance, strong adhesion, and can effectively protect the metal surface from erosion by chemicals and moisture. By applying a polyurethane coating on the periphery of the epoxy resin coating, the valve body can have good weather resistance and UV resistance, thereby improving the service life and performance of the ball valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional schematic diagram of a self-controlled fully welded ball valve proposed by the utility model;

[0026] Figure 2 This is a structural diagram of a valve body of a self-controlled fully welded ball valve proposed in the present invention;

[0027] Figure 3 This is a structural diagram of the connecting pipe of a self-controlled fully welded ball valve proposed by the present invention;

[0028] Figure 4 This is a structural schematic diagram of a baffle of an automatic controlled fully welded ball valve proposed by the present invention.

[0029] Legend:

[0030] 1. Valve body; 2. Ball; 3. Valve stem; 4. Valve seat; 5. Turntable; 6. Connecting pipe; 7. Bottom plate; 8. Spring 1; 9. Baffle; 10. Fixed rod 1; 11. Pull ring; 12. Epoxy resin coating; 13. Polyurethane coating; 14. Limit plate 1; 15. Spring 2; 16. Fixed rod 2; 17. Limit plate 2; 18. Sealing gasket; 19. Connecting plate. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figure 1 - Figure 3, the utility model provides an embodiment: a self-controlled fully welded ball valve, including a valve body 1, a valve seat 4 is provided on the top of the valve body 1, a turntable 5 is provided on one side of the valve seat 4, a valve stem 3 is fixedly connected to the bottom of the valve seat 4, a ball 2 is fixedly connected to the bottom of the valve body 1, a connecting pipe 6 is fixedly connected to the inside of the connecting pipe 6 with a bottom plate 7 being slidably connected, a spring 8 is fixedly connected to the top of the bottom plate 7, a baffle 9 is fixedly connected to the top of the spring 8, the outer periphery of the baffle 9 is slidably connected to the inside of the connecting pipe 6, a fixing rod 10 is slidably connected to one side of the inside of the connecting pipe 6, a pull ring 11 is fixedly connected to the end of the fixing rod 10 away from the connecting pipe 6, and a pull ring 11 is slidably connected to the inside of the bottom plate 7. The valve body 1 is the main shell of the ball valve and protects the key components inside. The ball 2 is the core closing part of the valve and has a perforated hollow structure. When the ball 2 rotates 90 degrees, the medium flow is cut off or opened, controlling the flow in the pipeline. The valve stem 3 is connected between the valve seat 4 and the ball 2, and drives the ball 2 to rotate through the rotation operation, thereby controlling the opening and closing of the valve. The valve seat 4 is used to support and seal the ball 2, and is in close contact with the surface of the ball 2 to ensure good sealing performance in the closed state to prevent medium leakage. The turntable 5 is used to rotate the valve stem 3 manually or through the actuator, thereby driving the ball 2 to rotate to realize the switching operation of the ball valve. The connecting pipe 6 is used to fix the bottom plate 7. The bottom plate 7 provides support for the spring 8, allowing it to move with the baffle 9. The spring 8 is used to provide elastic support to the baffle 9. The baffle 9 is used to buffer the damage of the liquid to the ball 2. The fixing rod 10 is used to fix the bottom plate 7, and the pull ring 11 is used to drive the fixing rod 10 to move.

[0033] Reference Figure 1 and Figure 2 The valve body 1 is provided with an anti-corrosion component on its outer periphery. The anti-corrosion component is used to protect the ball valve from corrosion by chemicals and moisture. The anti-corrosion component includes an epoxy resin coating 12, which is applied to the outer periphery of the valve body 1. The outer periphery of the epoxy resin coating 12 is coated with a polyurethane coating 13. The epoxy resin coating 12 can provide excellent corrosion resistance and wear resistance, with strong adhesion, and can effectively protect the metal surface from corrosion by chemicals and moisture. The polyurethane coating 13 can provide good weather resistance and UV resistance, thereby improving the service life and performance of the ball valve.

[0034] Reference Figure 1 、 Figure 3 and Figure 4The outer periphery of the fixing rod 10 is fixedly connected to the limit plate 14, and the outer periphery of the limit plate 14 is slidably connected to the inside of the connecting pipe 6. The side of the limit plate 14 away from the connecting pipe 6 is fixedly connected with a spring 2 15, and the end of the spring 2 15 away from the limit plate 14 is slidably connected to the inside of the connecting pipe 6. The spring 2 15 is sleeved on the outer periphery of the fixing rod 10, and the top of the bottom plate 7 is fixedly connected to the fixing rod 2 16. The top of the fixing rod 2 16 is slidably connected to the inside of the baffle 9. The fixing rod 2 16 is sleeved on the outer periphery of the spring 18. The top of the fixing rod 2 16 is fixedly connected to the limit plate 2 17. The outer periphery of the limit plate 2 17 is slidably connected to the inside of the baffle 9. The outer periphery of the baffle 9 is fixedly connected with a sealing gasket 18, and the left and right sides of the valve body 1 are fixedly connected to connecting plates 19. The limit plate 14 is used to fix the spring 2 15. The spring 2 15 can drive the fixing rod 10 to reset through the elastic force. The fixing rod 2 16 is used to fix the support baffle 9. The limit plate 2 17 prevents the baffle 9 from falling off from one end of the fixing rod 2 16. The sealing gasket 18 can make the baffle 9 have a sealing effect to prevent liquid from flowing out. The connecting plate 19 is used for quick installation of the ball valve.

[0035] Working principle: Turn the turntable 5 to drive the ball 2 to rotate through the valve stem 3. When the channel of the ball 2 is parallel to the direction of the pipeline, the valve opens and allows the medium to pass through; when the ball 2 rotates 90 degrees to make the channel perpendicular to the direction of the pipeline, the valve closes and cuts off the flow of the medium. The outer periphery of the valve body 1 is covered with epoxy resin coating 12 and polyurethane coating 13. This double-layer anti-corrosion coating design not only effectively resists the erosion of chemicals and moisture, but also enhances the durability of the valve, ensuring its long-term stable operation in corrosive environments. The spring 8 can make the baffle 9 elastic, thereby reducing Less fluid affects the valve, thereby ensuring that the valve can operate stably and reliably and extending its service life. Pulling the pull ring 11 can drive the fixed rod 10 to move. The fixed rod 10 can release the fixation to the bottom plate 7 by moving. After releasing the fixation to the bottom plate 7, the bottom plate 7 is removed to facilitate inspection of the spring 18 and the baffle 9, preventing the buffering effect from being reduced and affecting the use of the valve. After loosening the pull ring 11, the limit plate 14 can be driven to reset by the elastic force of the spring 2 15. The reset of the limit plate 14 can drive the fixed rod 10 to reset and fix the bottom plate 7.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A self-controlled fully welded ball valve, comprising a valve body (1), characterized in that: The outer periphery of the valve body (1) is provided with an anti-corrosion component, and the anti-corrosion component is used to prevent the ball valve from being corroded by chemicals and moisture. The top of the valve body (1) is provided with a valve seat (4), and a turntable (5) is provided on one side of the valve seat (4). The bottom of the valve seat (4) is fixedly connected to a valve stem (3), and the bottom of the valve stem (3) is fixedly connected to a ball (2). The bottom of the valve body (1) is fixedly connected to a connecting pipe (6), and the inside of the connecting pipe (6) is slidably connected to a bottom plate (7). A spring (8) is fixedly connected to the top of the plate (7), a baffle (9) is fixedly connected to the top of the spring (8), the outer periphery of the baffle (9) is slidably connected to the inside of the connecting tube (6), a fixed rod (10) is slidably connected to one side of the inside of the connecting tube (6), the end of the fixed rod (10) away from the connecting tube (6) is fixedly connected to a pull ring (11), and the end of the fixed rod (10) away from the pull ring (11) is slidably connected to the inside of the bottom plate (7).

2. The self-controlled fully welded ball valve according to claim 1, characterized in that: The anti-corrosion component comprises an epoxy resin coating (12), wherein the epoxy resin coating (12) is coated on the outer periphery of the valve body (1), and a polyurethane coating (13) is coated on the outer periphery of the epoxy resin coating (12).

3. The self-controlled fully welded ball valve according to claim 1, characterized in that: The outer periphery of the fixing rod (10) is fixedly connected to the limiting plate (14), and the outer periphery of the limiting plate (14) is slidably connected to the interior of the connecting pipe (6).

4. The self-controlled fully welded ball valve according to claim 3, characterized in that: A spring 2 (15) is fixedly connected to the side of the limiting plate 1 (14) away from the connecting tube (6), and an end of the spring 2 (15) away from the limiting plate 1 (14) is slidably connected to the inside of the connecting tube (6), and the spring 2 (15) is sleeved on the outer periphery of the fixing rod 1 (10).

5. The self-controlled fully welded ball valve according to claim 1, characterized in that: The top of the bottom plate (7) is fixedly connected to a second fixing rod (16), the top end of the second fixing rod (16) is slidably connected to the inside of the baffle (9), and the second fixing rod (16) is sleeved on the outer periphery of the first spring (8).

6. The self-controlled fully welded ball valve according to claim 5, characterized in that: The top end of the second fixing rod (16) is fixedly connected to the second limiting plate (17), and the outer periphery of the second limiting plate (17) is slidably connected to the inside of the baffle (9).

7. The self-controlled fully welded ball valve according to claim 1, characterized in that: A sealing gasket (18) is fixedly connected to the outer periphery of the baffle (9).

8. The self-controlled fully welded ball valve according to claim 1, characterized in that: Connecting plates (19) are fixedly connected to both the left and right sides of the valve body (1).

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