A cone stop valve for reducing valve core impact

Abstract

This utility model provides a conical stop valve for reducing valve core impact. The conical stop valve for reducing valve core impact includes: a valve body, a base plate; and a valve sleeve, which is installed on the top of the inner wall of the valve body. A valve cone is installed at the bottom end of the valve sleeve via a fastening screw. A third sealing ring is installed on the outer surface of the valve sleeve near the bottom end. A clamping screw is installed on the inner surface of the valve sleeve at the top end. A second sealing ring is provided on the outer surface of the clamping screw, and a first sealing ring is provided on the inner surface of the clamping screw. A conical end fastening screw is installed at the top end of the valve body, and a resilient cylindrical pin is provided on the outer surface of the valve core near the top end. The conical stop valve for reducing valve core impact provided by this utility model uses a hard-seal structure and an internal limiting device to effectively solve the problems of poor valve core sealing effect and serious operational damage. The integral connection structure solves the problem of reaction force impacting the valve core.

Description

Technical Field

[0001] The utility model relates to the technical field of conical stop valves, in particular to a conical stop valve capable of reducing valve core impact. Background Art

[0002] The stop valve, also known as the gate valve, is a forced sealing valve. Therefore, when the valve is closed, pressure must be applied to the valve disc to force the sealing surface to prevent leakage. When the medium enters the valve from under the valve disc, the resistance that the operating force needs to overcome is the friction between the valve stem and the packing and the thrust generated by the pressure of the medium. The force to close the valve is greater than the force to open the valve.

[0003] The stop valve is mainly composed of valve body, valve cover, valve stem, valve stem nut, valve disc, valve seat, stuffing box, sealing packing, stuffing gland and transmission device.

[0004] However, the valve core inside the traditional conical stop valve lacks a limit device, resulting in poor sealing effect and damage to the valve core during operation.

[0005] Therefore, it is necessary to provide a conical stop valve that reduces valve core impact to solve the above technical problems. Utility Model Content

[0006] The utility model provides a conical stop valve capable of reducing valve core impact, which solves the problem that the valve core inside the traditional conical stop valve lacks a limiting device, resulting in poor sealing effect and damage to the valve core during operation.

[0007] In order to solve the above technical problems, the utility model provides a conical stop valve for reducing valve core impact, comprising: a valve body, a bottom plate;

[0008] A valve sleeve, wherein the valve sleeve is mounted on the top of the inner wall of the valve body, a valve cone is mounted on the bottom end of the valve sleeve through a fastening screw, a third sealing ring is mounted on the outer surface of the valve sleeve near the bottom end, a compression screw sleeve is mounted on the inner surface of the valve sleeve at the top end, a second sealing ring is arranged on the outer surface of the compression screw sleeve, a first sealing ring is arranged on the inner surface of the compression screw sleeve, a cone-end fastening screw is mounted on the top end of the valve body, and an elastic cylindrical pin is arranged on the outer surface of the valve core near the top end;

[0009] A rotating ring, the rotating ring is installed on the outer surface of the valve sleeve near the top, and the top of the rotating ring is fixedly connected to a handwheel cover;

[0010] The valve sleeve is installed from the top of the valve body. A part of the valve sleeve is exposed from the top of the valve body. The bottom and top of the compression screw sleeve are provided with through holes to facilitate the passage of the valve core. The first sealing ring is sleeved on the outer surface of the valve core. The position of the cone-end fastening screw is referenced to Figure 3The handwheel cover is sleeved on the outer surface of the valve core near the top and is installed by an elastic cylindrical pin. A through hole is opened at the position where the elastic cylindrical pin is installed on the valve core. A sealing ring is also installed at the position where the outer surface of the valve core contacts the inner surface of the valve sleeve.

[0011] Preferably, a fourth sealing ring is installed on the outer surface of the valve cone near the top, an inlet pipe is installed on one side of the outer surface of the valve body, and the other end of the inlet pipe is fixedly connected to a second flange;

[0012] The inlet pipe and the valve body are connected, and the second flange is used to facilitate the connection between the stop valve and the pipeline.

[0013] Preferably, a discharge pipe is fixedly connected to the outer surface of the valve body at the other side, and a first flange is fixedly connected to the other end of the discharge pipe;

[0014] The discharge pipe and the valve body are also connected.

[0015] Preferably, four magnets are installed on the top of the bottom plate, and a protective frame is provided on the top of the bottom plate;

[0016] An iron sheet attracted to the magnet is installed at the bottom of the protective frame and the positions thereof are corresponding.

[0017] Preferably, a connecting plate with a hole is installed on both sides of the protection frame, and a buckle is installed on the top of the protection frame;

[0018] The connecting plate is installed on both sides of the protective frame by glue, and the through opening is sleeved on the outer surface of the inlet pipe and the outlet pipe.

[0019] Preferably, a support bolt is fixedly connected to the bottom of the base plate, and a fixing plate with four mounting holes is fixedly connected to the bottom end of the support bolt;

[0020] The mounting holes are convenient for bolts to pass through, so that the fixing plate can be fixed in the corresponding position.

[0021] Compared with the related art, the conical stop valve for reducing valve core impact provided by the utility model has the following beneficial effects:

[0022] The utility model provides a conical stop valve with reduced valve core impact. In order to reduce the damage caused by the impact of the stop valve core during operation, the valve cone is first installed at one end of the valve core by a fastening screw, and then the valve core is installed in the interior of the valve sleeve, and the valve cone is allowed to pass through one end of the valve sleeve, and then the other end of the valve sleeve is sealed by a compression screw sleeve with a second sealing ring and a first sealing ring, and the compression screw sleeve is sleeved on the outer surface of the valve sleeve, and finally, only a handwheel cover with a rotating ring needs to be connected to the position of the other end of the outer surface of the valve core through an elastic cylindrical pin, and the rotating ring is sleeved on the outer surface of the other end of the valve sleeve, and finally, only one end of the valve sleeve and the valve body needs to be connected, and a hard sealing structure is used in the structure, and a built-in limit device effectively solves the problems of poor valve core sealing effect and serious operation damage, and an integral connection structure solves the impact of the reaction force on the valve core. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A structural schematic diagram of a preferred embodiment of a conical stop valve for reducing valve core impact provided by the utility model;

[0024] Figure 2 A schematic diagram of the structure of a valve sleeve is provided for the utility model;

[0025] Figure 3 A structural schematic diagram of a hand wheel cover is provided for the utility model;

[0026] Figure 4 Provided for the utility model Figure 3 An enlarged view of point A is shown;

[0027] Figure 5 The utility model provides a structural schematic diagram of a magnet.

[0028] Numbers in the figure: 1. Base plate, 2. Protection frame, 3. Buckle, 4. Connecting plate, 5. Inlet pipe, 6. Through-hole, 7. Mounting hole, 8. Fixing plate, 9. Support bolt, 10. First flange, 11. Discharge pipe, 12. Valve body, 13. Second flange, 14. Rotating ring, 15. Handwheel cover, 16. Valve sleeve, 17. Valve core, 18. Compression screw sleeve, 19. First sealing ring, 20. Elastic cylindrical pin, 21. Second sealing ring, 22. Cone-end tightening screw, 23. Third sealing ring, 24. Valve cone, 25. Fastening screw, 26. Fourth sealing ring, 27. Magnet. DETAILED DESCRIPTION

[0029] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0030] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5,in, Figure 1 A structural schematic diagram of a preferred embodiment of a conical stop valve for reducing valve core impact provided by the utility model; Figure 2 A schematic diagram of the structure of a valve sleeve is provided for the utility model; Figure 3 A structural schematic diagram of a hand wheel cover is provided for the utility model; Figure 4 Provided for the utility model Figure 3 An enlarged view of point A is shown; Figure 5 The utility model provides a schematic diagram of the structure of the magnet. The cone stop valve for reducing the impact of the valve core comprises: a valve body 12, a bottom plate 1;

[0031] A valve sleeve 16, wherein the valve sleeve 16 is mounted on the top of the inner wall of the valve body 12, a valve cone 24 is mounted on the bottom end of the valve sleeve 16 through a fastening screw 25, a third sealing ring 23 is mounted on the outer surface of the valve sleeve 16 near the bottom end, a compression screw sleeve 18 is mounted on the inner surface of the valve sleeve 16 at the top end, a second sealing ring 21 is arranged on the outer surface of the compression screw sleeve 18, a first sealing ring 19 is arranged on the inner surface of the compression screw sleeve 18, a cone-end fastening screw 22 is mounted on the top end of the valve body 12, and an elastic cylindrical pin 20 is arranged on the outer surface of the valve core 17 near the top end;

[0032] A rotating ring 14, which is mounted on the outer surface of the valve sleeve 16 near the top, and a hand wheel cover 15 is fixedly connected to the top of the rotating ring 14;

[0033] The valve sleeve 16 is installed from the top of the valve body 12. A part of the valve sleeve 16 is exposed from the top of the valve body 12. The bottom and top of the compression screw sleeve 18 are provided with through holes to facilitate the passage of the valve core 17. The first sealing ring 19 is sleeved on the outer surface of the valve core 17. The position of the cone-end fastening screw 22 is referenced to Figure 3 The handwheel cover 15 is sleeved on the outer surface of the valve core 17 near the top and is installed by an elastic cylindrical pin 20. A through hole is provided at the position where the elastic cylindrical pin 20 is installed on the valve core 17. A sealing ring is also installed at the position where the outer surface of the valve core 17 contacts the inner surface of the valve sleeve 16. The structure on the valve body 12 constitutes a stop valve.

[0034] A fourth sealing ring 26 is installed on the outer surface of the valve cone 24 near the top, an inlet pipe 5 is installed on one side of the outer surface of the valve body 12, and the other end of the inlet pipe 5 is fixedly connected to a second flange 13;

[0035] The inlet pipe 5 and the valve body 12 are connected, and the second flange 13 is convenient for connecting the stop valve and the pipeline.

[0036] The outer surface of the valve body 12 is fixedly connected to a discharge pipe 11 at the other side, and the other end of the discharge pipe 11 is fixedly connected to a first flange 10;

[0037] The discharge pipe 11 and the valve body 12 are also interconnected, and the discharge pipe 11 and the inlet pipe 5 are adjacent to each other.

[0038] Four magnets 27 are installed on the top of the bottom plate 1, and a protective frame 2 is provided on the top of the bottom plate 1;

[0039] An iron sheet attracted to the magnet 27 is installed at the bottom of the protection frame 2, and the positions are corresponding. The bottom plate 1 is located below the valve body 12. The protection frame 2 covers the stop valve to play a protective role.

[0040] A connecting plate 4 with a hole 6 is installed on both sides of the protection frame 2, and a buckle 3 is installed on the top of the protection frame 2;

[0041] The connecting plate 4 is installed on both sides of the protection frame 2 by glue, the through opening 6 is sleeved on the outer surface of the inlet pipe 5 and the outlet pipe 11, and the pull buckle 3 is convenient for removing the protection frame 2.

[0042] A support bolt 9 is fixedly connected to the bottom of the base plate 1, and a fixing plate 8 with four mounting holes 7 is fixedly connected to the bottom end of the support bolt 9;

[0043] The mounting holes 7 are convenient for bolts to pass through, so that the fixing plate 8 can be fixed at the corresponding position.

[0044] The working principle of the conical stop valve for reducing valve core impact provided by the utility model is as follows:

[0045] First, install the valve cone 24 on one end of the valve core 17 by fastening screws 25, then install the valve core 17 into the inside of the valve sleeve 16, and let the valve cone 24 pass through one end of the valve sleeve 16, then use the compression screw sleeve 18 with the second sealing ring 21 and the first sealing ring 19 to seal the other end of the valve sleeve 16, and put the compression screw sleeve 18 on the outer surface of the valve sleeve 16, finally, just need to connect the handwheel cover 15 with the rotating ring 14 and the outer surface of the valve core 17 at the other end through the elastic cylindrical pin 20, and let the rotating ring 14 be put on the outer surface of the other end of the valve sleeve 16, finally, just need to connect the valve sleeve 16 and one end of the valve body 12.

[0046] Compared with the related art, the conical stop valve for reducing valve core impact provided by the utility model has the following beneficial effects:

[0047] In order to reduce the damage caused by the impact of the stop valve core 17 during operation, the valve cone 24 is first installed at one end of the valve core 17 by the fastening screw 25, and then the valve core 17 is installed in the inside of the valve sleeve 16, and the valve cone 24 is passed through one end of the valve sleeve 16, and then the other end of the valve sleeve 16 is sealed by the compression screw sleeve 18 with the second sealing ring 21 and the first sealing ring 19, and the compression screw sleeve 18 is sleeved on the outer surface of the valve sleeve 16, and finally, only the handwheel cover 15 with the rotating ring 14 needs to be connected to the position at the other end of the outer surface of the valve core 17 through the elastic cylindrical pin 20, and the rotating ring 14 is sleeved on the outer surface of the other end of the valve sleeve 16, and finally, only the valve sleeve 16 and one end of the valve body 12 need to be connected, and the hard sealing structure is used in the structure, and the built-in limit device effectively solves the problems of poor sealing effect of the valve core 17 and serious operation damage, and the integral connection structure solves the impact of the reaction force on the valve core 17.

[0048] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A conical stop valve for reducing valve core impact, characterized in that: include: Valve body, bottom plate; A valve sleeve, wherein the valve sleeve is mounted on the top of the inner wall of the valve body, a valve cone is mounted on the bottom end of the valve sleeve through a fastening screw, a third sealing ring is mounted on the outer surface of the valve sleeve near the bottom end, a compression screw sleeve is mounted on the inner surface of the valve sleeve at the top end, a second sealing ring is arranged on the outer surface of the compression screw sleeve, a first sealing ring is arranged on the inner surface of the compression screw sleeve, a cone-end fastening screw is mounted on the top end of the valve body, and an elastic cylindrical pin is arranged on the outer surface of the valve core near the top end; A rotating ring is installed on the outer surface of the valve sleeve near the top, and a handwheel cover is fixedly connected to the top of the rotating ring.

2. The conical stop valve for reducing valve core impact according to claim 1, characterized in that: A fourth sealing ring is installed on the outer surface of the valve cone near the top, an inlet pipe is installed on one side of the outer surface of the valve body, and a second flange is fixedly connected to the other end of the inlet pipe.

3. The conical stop valve for reducing valve core impact according to claim 1, characterized in that: A discharge pipe is fixedly connected to a position of the outer surface of the valve body at the other side, and a first flange is fixedly connected to the other end of the discharge pipe.

4. The conical stop valve for reducing valve core impact according to claim 1, characterized in that: Four magnets are installed on the top of the bottom plate, and a protective frame is arranged on the top of the bottom plate.

5. The conical stop valve for reducing valve core impact according to claim 4, characterized in that: A connecting plate with a hole is respectively installed on both sides of the protection frame, and a draw buckle is installed on the top of the protection frame.

6. The conical stop valve for reducing valve core impact according to claim 1, characterized in that: The bottom of the base plate is fixedly connected with a support bolt, and the bottom end of the support bolt is fixedly connected with a fixing plate with four mounting holes.

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