A fully enclosed high-pressure safety valve

Abstract

The utility model relates to the technical field of valves, specifically to a fully enclosed high-pressure safety valve, comprising a valve body; a connecting end is installed on the outer wall of the valve body; a valve stem is installed on the top of the valve body, and a connecting column is fixed on the top of the valve stem. The utility model fixes the connecting ear and the main sealing gasket by placing the main sealing gasket in an annular groove and then clamping the limit member into the clamping groove through a wave member. Compared with the existing ones, the utility model fixes the main sealing gasket to one end of the connecting end, and the main sealing gasket can improve the sealing performance of the connection between the connecting end and the external pipeline to avoid leakage, and the safety is higher; and the secondary sealing gasket can be connected to the outer wall of the main sealing gasket by clamping the elastic ring into the clamping groove on the outer wall of the main sealing gasket. Under the joint cooperation of the main sealing gasket and the secondary sealing gasket, the sealing performance of the connection between the connecting end and the external pipeline can be further improved to avoid leakage, and the safety is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a fully enclosed high-pressure safety valve. Background Art

[0002] Safety valves are generally composed of valve bodies and valve cores, and are widely used in various industries, especially in some industrial fields related to production safety. Once an emergency occurs, the safety valve responsible for fluid control must close the valve core in the shortest possible time to cut off the fluid, thereby reducing losses or avoiding accidents. Therefore, the technology and reliability of safety quick-break valves are extremely important.

[0003] The connection between the existing safety valve and the pipeline is not well sealed and has poor safety.

[0004] Therefore, a fully enclosed high-pressure safety valve is proposed. Utility Model Content

[0005] The utility model aims to provide a fully enclosed high-pressure safety valve.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A fully enclosed high-pressure safety valve, comprising:

[0008] Valve body;

[0009] A connecting end is installed on the outer wall of the valve body;

[0010] A valve stem is installed on the top of the valve body, a connecting column is fixed on the top of the valve stem, and a rotating shaft is fixed on the top of the connecting column;

[0011] An annular groove is formed at one end of the connection end, and a main sealing gasket is installed in the annular groove.

[0012] Preferably, a connecting ear is fixed on the outer wall of the main sealing gasket, a clamping groove is opened on the inner wall of the annular groove, and a limiting member is clamped in the clamping groove.

[0013] Preferably, one end of the limiting member abuts against the connecting ear.

[0014] Preferably, a wave element is fixed on the outer wall of the limiting element.

[0015] Preferably, a clamping groove is provided on the outer wall of the main sealing gasket, and an elastic ring is clamped in the clamping groove.

[0016] Preferably, a secondary sealing gasket is installed on the outer wall of the elastic ring.

[0017] Preferably, a connecting groove is provided on the outer wall of the connecting column, and a limiting plate is fixed in the connecting groove;

[0018] Two auxiliary strips abutting against the limiting plate are placed in the connecting groove.

[0019] Preferably, a threaded hole connected to the connecting groove is provided on the outer wall of the connecting column, a threaded rod is threadedly connected to the threaded hole, a rotating bar is fixed to one end of the threaded rod, and the other end of the threaded rod is in contact with two auxiliary bars.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] The utility model places the main sealing gasket in the annular groove, and then clamps the limiter into the clamping groove through the wave member, so as to fix the connecting ear and the main sealing gasket. Compared with the prior art, the utility model fixes the main sealing gasket to one end of the connecting end, so that the main sealing gasket can improve the sealing performance of the connection between the connecting end and the external pipeline, avoid leakage, and has higher safety.

[0022] Moreover, by clamping the elastic ring into the clamping groove on the outer wall of the main sealing gasket, the secondary sealing gasket can be connected to the outer wall of the main sealing gasket. With the joint cooperation of the main sealing gasket and the secondary sealing gasket, the sealing performance of the connection end and the external pipeline connection can be further improved to avoid leakage, which has higher safety.

[0023] Due to the performance of the elastic ring itself, it can be directly disassembled, so the secondary sealing gasket can be directly removed from the outer wall of the main sealing gasket, and then the limiting member can be taken out from the slot through the wave member to disassemble the main sealing gasket. Therefore, the utility model is convenient for disassembly and maintenance of the main sealing gasket and the secondary sealing gasket.

[0024] The utility model places two auxiliary strips in the connecting groove, and then rotates the threaded rod by turning the strip. At this time, the threaded rod will move in the threaded hole. After one end of the threaded rod abuts against the two auxiliary strips, the two auxiliary strips can be fixed to the connecting groove. By rotating the two auxiliary strips, the two auxiliary strips can provide a certain assisting effect for rotating the rotating shaft and the valve stem, thereby facilitating the user to rotate the rotating shaft and the valve stem, thereby improving the use efficiency of the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 For this utility model Figure 1 A magnified view of middle;

[0027] Figure 3 It is a schematic diagram of the connecting groove structure in the utility model;

[0028] Figure 4 It is a schematic diagram of the cross-sectional structure of the connection end in the present utility model.

[0029] In the figure: 1. valve body; 2. connecting end; 3. valve stem; 4. connecting column; 5. rotating shaft; 6. connecting groove; 7. limiting plate; 8. auxiliary strip; 9. threaded hole; 10. threaded rod; 11. rotating strip; 12. annular groove; 13. main sealing gasket; 14. connecting ear; 15. clamping groove; 16. limiting piece; 17. wave piece; 18. clamping groove; 19. elastic ring; 20. secondary sealing gasket. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0032] Embodiment 1:

[0033] See also Figure 1 , 4 The utility model provides a technical solution: To achieve the above-mentioned purpose, the utility model provides the following technical solution: A fully enclosed high-pressure safety valve, comprising: a valve body 1; a connecting end 2 is installed on the outer wall of the valve body 1; a valve stem 3 is installed on the top of the valve body 1, a connecting column 4 is fixed on the top of the valve stem 3, and a rotating shaft 5 is fixed on the top of the connecting column 4; an annular groove 12 is opened at one end of the connecting end 2, a main sealing gasket 13 is installed in the annular groove 12, a connecting ear 14 is fixed on the outer wall of the main sealing gasket 13, a clamping groove 15 is opened on the inner wall of the annular groove 12, a limiting member 16 is clamped in the clamping groove 15, one end of the limiting member 16 abuts against the connecting ear 14, a wave member 17 is fixed on the outer wall of the limiting member 16, a clamping groove 18 is opened on the outer wall of the main sealing gasket 13, an elastic ring 19 is clamped in the clamping groove 18, and a secondary sealing gasket 20 is installed on the outer wall of the elastic ring 19.

[0034] Specifically, the utility model places the main sealing gasket 13 into the annular groove 12, and then clamps the limiter 16 into the clamping groove 15 through the wave member 17, so as to fix the connecting ear 14 and the main sealing gasket 13. Compared with the prior art, the utility model fixes the main sealing gasket 13 to one end of the connecting end 2, so that the main sealing gasket 13 can improve the sealing of the connection between the connecting end 2 and the external pipeline, avoid leakage, and has higher safety.

[0035] And by snapping the elastic ring 19 into the snap-in groove 18 on the outer wall of the main sealing gasket 13, the secondary sealing gasket 20 can be connected to the outer wall of the main sealing gasket 13. With the cooperation of the main sealing gasket 13 and the secondary sealing gasket 20, the sealing performance of the connection between the connecting end 2 and the external pipeline can be further improved to avoid leakage, thereby achieving higher safety.

[0036] Due to the performance of the elastic ring 19 itself, it can be directly disassembled, so the secondary sealing gasket 20 can be directly removed from the outer wall of the main sealing gasket 13, and then the limiting member 16 can be taken out from the slot 15 through the wave member 17, and the main sealing gasket 13 can be disassembled. Therefore, the utility model is convenient for disassembly and maintenance of the main sealing gasket 13 and the secondary sealing gasket 20.

[0037] Embodiment 2:

[0038] See also Figure 1-3 The utility model provides a technical solution: a fully enclosed high-pressure safety valve, a connecting groove 6 is provided on the outer wall of the connecting column 4, a limiting plate 7 is fixed in the connecting groove 6; two auxiliary strips 8 abutting against the limiting plate 7 are placed in the connecting groove 6, a threaded hole 9 connected to the connecting groove 6 is provided on the outer wall of the connecting column 4, a threaded rod 10 is threadedly connected in the threaded hole 9, a rotating strip 11 is fixed at one end of the threaded rod 10, and the other end of the threaded rod 10 abuts against the two auxiliary strips 8.

[0039] Specifically, the utility model places two auxiliary strips 8 into the connecting groove 6, and then rotates the threaded rod 10 through the rotating strip 11. At this time, the threaded rod 10 will move in the threaded hole 9. After one end of the threaded rod 10 abuts against the two auxiliary strips 8, the two auxiliary strips 8 can be fixed to the connecting groove 6. By rotating the two auxiliary strips 8, the two auxiliary strips 8 can provide a certain assisting effect for rotating the rotating shaft 5 and the valve stem 3, thereby facilitating the user to rotate the rotating shaft 5 and the valve stem 3, thereby improving the use efficiency of the valve body 1.

[0040] Working principle:

[0041] First, the main sealing gasket 13 is placed in the annular groove 12, and then the limiting member 16 is clamped into the clamping groove 15 through the wave member 17, so that the connecting ear 14 and the main sealing gasket 13 can be fixed. Compared with the existing ones, the main sealing gasket 13 is fixed to one end of the connecting end 2, so that the main sealing gasket 13 can improve the sealing of the connection between the connecting end 2 and the external pipeline, avoid leakage, and have higher safety.

[0042] And by snapping the elastic ring 19 into the snap-fit ​​groove 18 on the outer wall of the main seal 13, the secondary seal 20 can be connected to the outer wall of the main seal 13. With the cooperation of the main seal 13 and the secondary seal 20, the sealing performance of the connection between the connecting end 2 and the external pipe can be further improved to avoid leakage, which is safer.

[0043] Secondly, the elastic ring 19 can be directly disassembled under its own performance, so the secondary seal 20 can be directly removed from the outer wall of the main seal 13, and then the limiter 16 can be taken out from the card slot 15 through the wave member 17, and the main seal 13 can be disassembled. Therefore, the utility model is convenient for disassembly and maintenance of the main seal 13 and the secondary seal 20;

[0044] Finally, by placing the two auxiliary strips 8 into the connecting groove 6 and then rotating the threaded rod 10 through the rotating strip 11, the threaded rod 10 will move in the threaded hole 9. After one end of the threaded rod 10 abuts against the two auxiliary strips 8, the two auxiliary strips 8 can be fixed to the connecting groove 6. By rotating the two auxiliary strips 8, the two auxiliary strips 8 can provide a certain assisting effect for rotating the rotating shaft 5 and the valve stem 3, thereby facilitating the user to rotate the rotating shaft 5 and the valve stem 3, thereby improving the use efficiency of the valve body 1.

[0045] In the description of the present invention, it should be understood that the terms "center", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0046] 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 descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A fully enclosed high-pressure safety valve, characterized in that: include: Valve body (1); A connecting end (2) is installed on the outer wall of the valve body (1); A valve stem (3) is installed on the top of the valve body (1), a connecting column (4) is fixed on the top of the valve stem (3), and a rotating shaft (5) is fixed on the top of the connecting column (4); An annular groove (12) is provided at one end of the connecting end (2), and a main sealing gasket (13) is installed in the annular groove (12).

2. A fully enclosed high-pressure safety valve according to claim 1, characterized in that: A connecting ear (14) is fixed on the outer wall of the main sealing pad (13), a clamping groove (15) is provided on the inner wall of the annular groove (12), and a limiting member (16) is clamped in the clamping groove (15).

3. A fully enclosed high-pressure safety valve according to claim 2, characterized in that: One end of the limiting member (16) is in contact with the connecting ear (14).

4. A fully enclosed high-pressure safety valve according to claim 3, characterized in that: A wave-wave member (17) is fixed on the outer wall of the limiting member (16).

5. A fully enclosed high-pressure safety valve according to claim 1, characterized in that: A clamping groove (18) is provided on the outer wall of the main sealing pad (13), and an elastic ring (19) is clamped in the clamping groove (18).

6. A fully enclosed high-pressure safety valve according to claim 5, characterized in that: A secondary sealing gasket (20) is installed on the outer wall of the elastic ring (19).

7. A fully enclosed high-pressure safety valve according to claim 1, characterized in that: A connecting groove (6) is provided on the outer wall of the connecting column (4), and a limiting plate (7) is fixed in the connecting groove (6); Two auxiliary strips (8) abutting against the limiting plate (7) are placed in the connecting groove (6).

8. A fully enclosed high-pressure safety valve according to claim 7, characterized in that: A threaded hole (9) connected to the connecting groove (6) is provided on the outer wall of the connecting column (4); a threaded rod (10) is internally threadedly connected to the threaded hole (9); a rotating bar (11) is fixed to one end of the threaded rod (10); and the other end of the threaded rod (10) is in contact with two auxiliary bars (8).

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