Stainless steel valve with good sealing performance

Abstract

The invention discloses a stainless steel valve with good sealing performance, and relates to the technical field of valves, the stainless steel valve comprises a valve body and a flange plate body, the two ends of the valve body are provided with first limiting grooves, the outer walls of the first limiting grooves are sleeved with first sealing rings, and one ends of the first limiting grooves are provided with second limiting grooves; a second sealing ring is arranged in the second limiting groove, the other end of the second sealing ring is sleeved with a third limiting groove, the third limiting groove is located in the outer wall of the flange plate body, and a positioning assembly for temporarily limiting the flange plate body is further arranged on the inner wall of the valve body. Through the arrangement of a first limiting groove and a third limiting groove, the phenomenon that the first sealing ring and the second sealing ring displace when and after the valve and the flange plate are installed is greatly reduced, through the arrangement of the positioning assembly, the flange plate body and the valve body are clamped, and the sealing effect is improved. And a worker can conveniently and temporarily limit the flange plate body when installing the flange plate body.

Description

Technical Field

[0001] The present invention relates to the technical field of valves, and particularly to a stainless steel valve with good sealing performance. Background Art

[0002] A valve is a device used to control the flow of fluid in a pipeline or equipment. It realizes functions such as conducting, cutting off, regulating, throttling, and check of the fluid by changing the cross-sectional area of the flow channel and the flow direction of the medium.

[0003] When the valve is connected to the flange through bolts, there are a series of bolt holes at the edges of the valve and the flange. Align the flange of the valve with the flange on the pipeline, make the bolt holes correspond one by one, then insert the bolts, add washers, and tighten with nuts. Through the fastening force of the bolts, the valve and the flange are tightly connected together to form a sealed connection surface.

[0004] When the existing stainless steel valve is connected to the flange, the sealing performance is poor and the sealing ring is prone to displacement. Secondly, during installation, workers also need to support the flange by hand and fix it with bolts and nuts, which causes a certain burden on the workers and reduces the work efficiency. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a stainless steel valve with good sealing performance to solve the technical problems mentioned in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A stainless steel valve with good sealing performance, including a valve body and a flange body. Both ends of the valve body are provided with first limiting grooves, and a first sealing ring is sleeved on the outer wall of the first limiting grooves. One end of the first limiting groove is provided with a second limiting groove, and a second sealing ring is arranged in the second limiting groove. The other end of the second sealing ring is sleeved with a third limiting groove, and the third limiting groove is located on the outer wall of the flange body. A positioning component for temporarily limiting the flange body is further arranged on the inner wall of the valve body, and the positioning component includes a fixed block, a groove, and a contact block.

[0007] By adopting the above technical solutions, the phenomenon that the first sealing ring and the second sealing ring are displaced during and after the installation of the valve and the flange is greatly reduced, thereby effectively improving the sealing performance when the two are connected. Secondly, by arranging air suction holes and a circular tube in the third limiting groove to pump air in the second limiting groove and the third limiting groove after the flange body and the valve body are connected, the flange body and the valve body are closely attached to improve the sealing performance when the two are connected. Through the arrangement of the positioning component, the fixing block is sleeved on the outer wall of the convex block, and the contact block clamps the outer wall of the fixing block, so that the flange body and the valve body are engaged with each other, which is convenient for the staff to perform temporary limiting during the installation of the flange body and effectively improves the work efficiency.

[0008] The present invention is further configured such that a plurality of fixing blocks are provided at one end of the flange body close to the valve body, and through holes are provided in the inner walls of the fixing blocks.

[0009] Preferably, the fixing block is connected to the convex block to limit the position of the fixing block and quickly limit the position of the flange body, thereby improving the installation efficiency.

[0010] The present invention is further configured such that grooves are provided at both ends of the valve body, and the fixing block is sleeved in the groove. A convex block is sleeved in the inner wall of the fixing block, and contact blocks are provided at both ends of the convex block.

[0011] Preferably, the contact block is located in the fixing block, and the contact block is connected to the valve body through a rotating rod, effectively improving the stability of the contact block during movement.

[0012] The present invention is further configured such that the contact block is movably connected to the inner wall of the valve body, and the contact block is attached to the outer wall of the fixing block. A spring is provided at the bottom of the contact block.

[0013] Preferably, the spring limits the position of the contact block, and the shape of the contact block is arranged such that the fixing block and the contact block are attached to each other, effectively limiting the position of the fixing block and facilitating the installation of the valve body and the flange body.

[0014] The present invention is further configured such that the first sealing ring is in a T shape, a limiting block is placed at one end of the first sealing ring, and the limiting block is fixedly connected to the flange body.

[0015] Preferably, through the arrangement of the shape and position of the first sealing ring, the sealing performance when the valve body and the flange body are connected is effectively improved.

[0016] The present invention is further configured such that the limiting block is attached to the inner wall of the valve body, the first sealing ring is located between the first limiting groove and the limiting block, and the limiting block and the inner wall of the valve body are on the same horizontal plane.

[0017] Preferably, the phenomenon that the first sealing ring and the second sealing ring are displaced during and after the installation of the valve and the flange is greatly reduced.

[0018] The present invention is further configured such that a second sealing ring is sleeved in both the third limiting groove and the second limiting groove, and a perforation is provided on the surface of the second sealing ring.

[0019] Preferably, the position of the second sealing ring is limited, thereby improving the sealing performance when the valve body and the flange body are connected.

[0020] The present invention is further configured such that an adsorption assembly is provided at one end of the third limiting groove close to the flange body. The adsorption assembly includes an air suction hole, a round tube, and an air outlet nozzle, and the air suction hole is located at one end of the third limiting groove.

[0021] Preferably, the air around the second sealing ring is evacuated when the valve body and the flange body are connected, thereby improving the sealing performance when the valve body and the flange body are connected.

[0022] The present invention is further configured such that the other end of the air suction hole is connected to the round tube, and the other end of the round tube is provided with an air outlet nozzle. The air outlet nozzle is located on the outer wall of the flange body, and the air suction hole, the round tube, and the air outlet nozzle are communicated with each other. The air suction hole is disposed opposite to the perforation, and the opening diameters of the air suction hole and the perforation are the same.

[0023] Preferably, it is convenient for the perforation to evacuate the air in the second limiting groove, so that the valve body and the flange body are closely attached.

[0024] In summary, the present invention mainly has the following beneficial effects:

[0025] 1. Through the settings of the first limiting groove and the third limiting groove, the positions of the first sealing ring and the second sealing ring are limited respectively, greatly reducing the phenomenon that the first sealing ring and the second sealing ring are displaced during and after the installation of the valve and the flange, and thereby effectively improving the sealing performance when the two are connected. Secondly, by providing an air suction hole and a round tube in the third limiting groove to evacuate the air in the second limiting groove and the third limiting groove after the flange body and the valve body are connected, the flange body and the valve body are closely attached, improving the sealing performance when the two are connected.

[0026] 2. Through the setting of the positioning assembly, the fixing block is sleeved on the outer wall of the convex block, and the contact block clamps the outer wall of the fixing block, so that the flange body and the valve body are engaged with each other, facilitating the staff to perform temporary limiting during the installation of the flange body, and effectively improving the work efficiency. Brief Description of the Drawings

[0027] Figure 1Front three-dimensional schematic diagram of the present invention;

[0028] Figure 2 First perspective schematic diagram of the split valve body and flange body of the present invention;

[0029] Figure 3 Second perspective schematic diagram of the split valve body and flange body of the present invention;

[0030] Figure 4 Schematic diagram of the structure of the flange body of the present invention;

[0031] Figure 5 Schematic diagram of the structure of the valve body of the present invention;

[0032] Figure 6 Schematic diagram of the connection of the suction hole and the air outlet nozzle of the present invention;

[0033] Figure 7 Schematic diagram of the structure of the positioning component of the present invention.

[0034] Explanation of reference numerals:

[0035] 1. Valve body; 10. First limiting groove; 11. First sealing ring; 12. Second limiting groove; 2. Flange body; 20. Second sealing ring; 201. Perforation; 21. Limiting block; 22. Third limiting groove; 3. Adsorption component; 30. Suction hole; 31. Round tube; 32. Air outlet nozzle; 4. Positioning component; 40. Fixed block; 41. Groove; 42. Contact block; 43. Protrusion; 44. Spring. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as limiting the present invention.

[0037] Next, the embodiments of the present invention will be described according to the overall structure of the present invention.

[0038] The first embodiment:

[0039] Please refer to Figures 1 - 7, including a valve body 1 and a flange body 2. Both ends of the valve body 1 are provided with first limiting grooves 10, and a first sealing ring 11 is sleeved on the outer wall of the first limiting groove 10. One end of the first limiting groove 10 is provided with a second limiting groove 12, and a second sealing ring 20 is arranged in the second limiting groove 12. The other end of the second sealing ring 20 is sleeved with a third limiting groove 22, and the third limiting groove 22 is located on the outer wall of the flange body 2. A positioning component 4 for temporarily limiting the flange body 2 is also arranged on the inner wall of the valve body 1. The positioning component 4 includes a fixed block 40, a groove 41 and a contact block 42. Through the settings of the first limiting groove 10 and the third limiting groove 22, the positions of the first sealing ring 11 and the second sealing ring 20 are limited respectively, greatly reducing the phenomenon that the first sealing ring 11 and the second sealing ring 20 are displaced during and after the installation of the valve and the flange, and thus effectively improving the sealing performance when the two are connected. Secondly, through the arrangement of the air suction holes 30 and the round pipes 31 in the third limiting groove 22, the air in the second limiting groove 12 and the third limiting groove 22 is pumped out after the flange body 2 is connected to the valve body 1, so that the flange body 2 and the valve body 1 are closely attached, improving the sealing performance when the two are connected. Through the setting of the positioning component 4, the fixed block 40 is sleeved on the outer wall of the convex block 43, and the contact block 42 clamps the outer wall of the fixed block 40, so that the flange body 2 and the valve body 1 are engaged with each other, facilitating the staff to temporarily limit the position of the flange body 2 during installation and effectively improving the work efficiency.

[0040] In the above embodiment, specifically, please refer to Figure 2 , Figure 3 , a plurality of groups of fixed blocks 40 are arranged at one end of the flange body 2 close to the valve body 1, and through holes are arranged on the inner walls of the fixed blocks 40. The fixed blocks 40 are connected to the convex blocks 43 to limit the positions of the fixed blocks 40 and quickly limit the position of the flange body 2, improving the installation efficiency.

[0041] In the above embodiment, specifically, please refer to Figures 1 - 3 and Figure 5 , grooves 41 are arranged at both ends of the valve body 1, and the fixed blocks 40 are sleeved in the grooves 41. The convex blocks 43 are sleeved on the inner walls of the fixed blocks 40, and contact blocks 42 are arranged at both ends of the convex blocks 43. The contact blocks 42 are located in the fixed blocks 40, and the contact blocks 42 are connected to the valve body 1 through rotating rods, effectively improving the stability of the contact blocks 42 during movement.

[0042] In the above embodiment, specifically, please refer to Figure 7, the contact block 42 is movably connected to the inner wall of the valve body 1, and the contact block 42 is in contact with the outer wall of the fixed block 40. A spring 44 is provided at the bottom of the contact block 42. The spring 44 limits the position of the contact block 42. The shape of the contact block 42 is such that the fixed block 40 and the contact block 42 are in contact, effectively limiting the position of the fixed block 40, which is convenient for the installation of the valve body 1 and the flange body 2.

[0043] In the above embodiment, specifically, please refer to Figure 5 , the first sealing ring 11 is in a T shape, and a limiting block 21 is placed at one end of the first sealing ring 11. The limiting block 21 is fixedly connected to the flange body 2. Through the setting of the shape and position of the first sealing ring 11, the sealing performance when the valve body 1 and the flange body 2 are connected is effectively improved.

[0044] In the above embodiment, specifically, please refer to Figures 1 - 5 , the limiting block 21 is in contact with the inner wall of the valve body 1, and the first sealing ring 11 is located between the first limiting groove 10 and the limiting block 21. The limiting block 21 and the inner wall of the valve body 1 are on the same horizontal plane, greatly reducing the phenomenon that the first sealing ring 11 and the second sealing ring 20 are displaced during and after the installation of the valve and the flange.

[0045] In the above embodiment, specifically, please refer to Figure 4 , a second sealing ring 20 is sleeved in both the third limiting groove 22 and the second limiting groove 12. A through hole 201 is provided on the surface of the second sealing ring 20 to limit the position of the second sealing ring 20, thereby improving the sealing performance when the valve body 1 and the flange body 2 are connected.

[0046] The second embodiment:

[0047] Please refer to Figure 4 、 Figure 6 , the difference between the second embodiment and the first embodiment is that on the basis of retaining the first embodiment, an adsorption assembly 3 is provided at one end of the third limiting groove 22 close to the flange body 2 to evacuate the air around the second sealing ring 20 when the valve body 1 and the flange body 2 are connected, improving the sealing performance when the valve body 1 and the flange body 2 are connected.

[0048] At one end of the third limiting groove 22 close to the flange body 2, a plurality of air suction holes 30 are provided, and the other end of the air suction hole 30 is provided with a circular pipe 31. The outer wall of the circular pipe 31 is provided with an air outlet nozzle 32. Secondly, the air outlet nozzle 32 is located on the outer wall of the flange body 2, and the circular pipe 31 is located on the inner wall of the flange body 2. Moreover, the plurality of air suction holes 30 communicate with the circular pipe 31, and the circular pipe 31 communicates with the air outlet nozzle 32. The perforation 201 is arranged opposite to the air suction hole 30. The inner wall of the air outlet nozzle 32 is provided with a one-way valve, so as to evacuate air when the valve body 1 and the flange body 2 are connected, and improve the sealing performance when the valve body 1 and the flange body 2 are connected.

[0049] When the present invention is working specifically:

[0050] When the valve body 1 and the flange body 2 need to be connected, first, a second sealing ring 20 is installed on the outer wall of the flange body 2, so that the second sealing ring 20 is sleeved in the third limiting groove 22. Then, the first sealing ring 11 is sleeved on the outer wall of the first limiting groove 10. Next, the fixing block 40 on the outer wall of the flange body 2 is placed in the groove 41, and then the flange body 2 is rotated so that the convex block 43 is sleeved in the fixing block 40, and the contact block 42 limits the outer wall of the fixing block 40 under the action of the spring 44. At the same time, the position of the flange body 2 is temporarily limited, which is convenient for the through holes on the surfaces of the valve body 1 and the flange body 2 to be opposite to each other, and is convenient for the staff to install bolts.

[0051] Furthermore, when the valve body 1 and the flange body 2 are fitted together, the first sealing ring 11 is sleeved on the outer wall of the first limiting groove 10, and the first sealing ring 11 is flush with the inner wall pipeline of the valve body 1 and is located on the same horizontal line. And the second sealing ring 20 at one end of the flange body 2 is sleeved in the second limiting groove 12 at one end of the valve body 1, which improves the sealing performance when the valve body 1 and the flange body 2 are connected.

[0052] Still further, before completely connecting the valve body 1 and the flange body 2 with bolts, a manual air pump is connected to the air outlet nozzle 32, so that the plurality of air suction holes 30 evacuate the air in the third limiting groove 22, and the air in the second limiting groove 12 is also evacuated through the perforation 201, so that the valve body 1 and the flange body 2 are closely fitted. Finally, bolts are used to fasten the valve body 1 and the flange body 2, effectively improving the sealing performance when the valve body 1 and the flange body 2 are connected.

[0053] Although embodiments of the present invention have been shown and described, the specific embodiments are merely explanations of the present invention and are not limitations thereof. The specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations that do not make creative contributions to the embodiments as needed, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A stainless steel valve with good sealing performance, comprising a valve body (1) and a flange body (2), characterized in that: Both ends of the valve body (1) are provided with a first limiting groove (10), and the outer wall of the first limiting groove (10) is sleeved with a first sealing ring (11); one end of the first limiting groove (10) is provided with a second limiting groove (12), and a second sealing ring (20) is arranged in the second limiting groove (12); the other end of the second sealing ring (20) is sleeved with a third limiting groove (22), and the third limiting groove (22) is located on the outer wall of the flange body (2); the inner wall of the valve body (1) is also provided with a positioning component (4) for temporarily limiting the flange body (2), and the positioning component (4) comprises a fixing block (40), a groove (41) and a contact block (42).

2. A stainless steel valve with good sealing performance according to claim 1, characterized in that: A plurality of sets of fixing blocks (40) are arranged at one end of the flange body (2) close to the valve body (1), and the inner wall of the fixing block (40) is provided with a through hole.

3. A stainless steel valve with good sealing performance according to claim 1, characterized in that: Both ends of the valve body (1) are provided with grooves (41), and the fixing block (40) is sleeved in the groove (41). The inner wall of the fixing block (40) is sleeved with a protrusion (43), and contact blocks (42) are provided at both ends of the protrusion (43).

4. A stainless steel valve with good sealing performance according to claim 1, characterized in that: The contact block (42) is movably connected to the inner wall of the valve body (1), and the contact block (42) is in contact with the outer wall of the fixed block (40). A spring (44) is provided at the bottom of the contact block (42).

5. A stainless steel valve with good sealing performance according to claim 1, characterized in that: The first sealing ring (11) is T-shaped, and a limiting block (21) is placed at one end of the first sealing ring (11), and the limiting block (21) is fixedly connected to the flange body (2).

6. A stainless steel valve with good sealing performance according to claim 5, characterized in that: The limit block (21) fits the inner wall of the valve body (1), the first sealing ring (11) is located between the first limit groove (10) and the limit block (21), and the limit block (21) and the inner wall of the valve body (1) are located on the same horizontal plane.

7. A stainless steel valve with good sealing performance according to claim 1, characterized in that: The third limiting groove (22) and the second limiting groove (12) are both sleeved with a second sealing ring (20), and a perforation (201) is provided on the surface of the second sealing ring (20).

8. A stainless steel valve with good sealing performance according to claim 1, characterized in that: An adsorption assembly (3) is provided at one end of the third limiting groove (22) close to the flange body (2), and the adsorption assembly (3) comprises an air suction hole (30), a round tube (31) and an air outlet nozzle (32), and the air suction hole (30) is located at one end of the third limiting groove (22).

9. A stainless steel valve with good sealing performance according to claim 8, characterized in that: The other end of the air intake hole (30) is connected to the circular tube (31), and the other end of the circular tube (31) is provided with an air outlet nozzle (32), the air outlet nozzle (32) is located on the outer wall of the flange body (2), and the air intake hole (30), the circular tube (31) and the air outlet nozzle (32) are in communication, the air intake hole (30) and the through hole (201) are arranged opposite to each other, and the opening diameters of the air intake hole (30) and the through hole (201) are the same.

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