CN220016104U - Positive pressure internal balance stop valve - Google Patents
Positive pressure internal balance stop valve Download PDFInfo
- Publication number
- CN220016104U CN220016104U CN202321716323.1U CN202321716323U CN220016104U CN 220016104 U CN220016104 U CN 220016104U CN 202321716323 U CN202321716323 U CN 202321716323U CN 220016104 U CN220016104 U CN 220016104U
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- Prior art keywords
- valve
- clack
- positive pressure
- nut
- pressure internal
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- 238000007789 sealing Methods 0.000 claims abstract description 10
- 238000012856 packing Methods 0.000 claims description 13
- 238000004804 winding Methods 0.000 claims description 6
- 229920001875 Ebonite Polymers 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 210000004907 gland Anatomy 0.000 claims 2
- 239000000945 filler Substances 0.000 abstract description 13
- 238000003825 pressing Methods 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000001125 extrusion Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Valve Housings (AREA)
Abstract
The utility model discloses a positive pressure internal balance stop valve, which comprises a valve body, wherein the valve body is of a three-way structure, the top end of the valve body is provided with a valve clack, the top end of the valve clack is provided with a valve rod, the inside of the valve clack is provided with a valve clack thrust plate, a valve clack nut is arranged between the valve clack and the valve rod, the top end of the valve body is provided with a valve cover, an upper sealing seat is arranged between the inner side wall of the valve cover and the valve rod, a filler is arranged between the top end of the valve cover and the valve rod, the top end of the filler is provided with a filler pressing plate, the filler pressing plate is fixedly connected with the valve cover through a movable joint bolt and a first nut, and a threaded valve seat is arranged between the valve clack and the inner side wall of the top end of the valve body.
Description
Technical Field
The utility model relates to the field of stop valve devices, in particular to a positive pressure internal balance stop valve.
Background
The stop valve, also called a stop valve, is one of the most widely used valves, and is popular because the friction force between sealing surfaces in the opening and closing process is small, the stop valve is durable, the opening height is small, the stop valve is easy to manufacture and convenient to maintain, is not only suitable for medium and low pressure, but also suitable for high pressure, the structural length of the stop valve is larger than that of a gate valve, meanwhile, the fluid resistance is large, and the sealing reliability is not strong in long-term operation.
The Chinese patent publication No. 201620197401.5 discloses a stop valve, which solves the problem that when the mounting position of a valve body is deviated, a decorative cover is not easy to be attached to a wall surface. However, the water pressure in the valve body is easy to be unbalanced in circulation, so that the valve body is damaged, the service life of the valve body is reduced, and therefore, the positive pressure internal balance stop valve is provided for solving the problems.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides the positive pressure internal balance stop valve, the sealing performance of the whole stop valve structure is stronger by performing waterproof sealing treatment on the joint of the valve cover and the valve body through the winding gasket, and meanwhile, the joint of the valve rod and the valve clack is reinforced through the valve clack and the valve clack thrust plate, so that the firmness of the device is stronger on the premise of improving the sealing performance, and meanwhile, the structures on the two sides of the valve rod in the valve body are in symmetrical states, so that water cannot generate the condition of overhigh water pressure due to the extrusion of other components when water flows through the valve body, and the service life of the stop valve is prolonged.
In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a positive pressure internal balance stop valve, includes the valve body, the valve body is three-way structure, just the top of valve body is provided with the valve clack, the top of valve clack is provided with the valve rod, the inside of valve clack is provided with the valve clack thrust plate, be provided with the valve clack nut between valve clack and the valve rod, the top of valve body is provided with the valve gap, be provided with the filler between the inside wall of valve gap and the valve rod, the top of filler is provided with the packing and presses the cover, the top of packing is pressed the cover and is provided with the packing clamp plate, pass through movable joint bolt and first nut fastening connection between packing clamp plate and the valve gap, the outside of valve rod is provided with screw and valve rod nut, the top of valve rod is provided with the hand wheel, the top of hand wheel is provided with the second nut, be provided with the screw thread disk seat between the top inside wall of valve clack and valve body.
As a preferable technical scheme of the utility model, a backstop gasket is arranged between the outer side of the bottom end of the valve clack nut and the outer side of the valve clack, and the backstop gasket is made of PFA plastic particles.
As a preferable technical scheme of the utility model, a winding gasket is arranged at the bottom of the valve cover, and a plurality of groups of studs and hexagonal nuts are arranged between the valve cover and the valve body.
As a preferable technical scheme of the utility model, the bottom end of each set of movable joint bolts is provided with a locating pin.
As a preferable technical scheme of the utility model, the bottom end of the second nut is provided with a gasket, the outer side of the valve cover is provided with a nameplate, and the nameplate is fixedly connected with the valve cover through a rivet.
As a preferable technical scheme of the utility model, the outer side of the top end of the valve clack nut is provided with a round-corner truncated cone structure, and the threaded valve seat is made of hard rubber.
Compared with the prior art, the utility model has the following beneficial effects:
in this device, carry out waterproof sealing through the wound gasket through the junction at valve gap and valve body and handle and make the leakproofness of whole stop valve structure stronger, consolidate through valve clack and valve clack thrust plate in the junction of valve rod and valve clack simultaneously, under the prerequisite that improves the leakproofness for the robustness of device is stronger, simultaneously because the structure of the inside valve rod both sides of valve body is the symmetry state, can not produce the too high condition of water pressure because of the extrusion of other subassemblies when making rivers pass through the valve body inside, thereby the life of extension stop valve.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a structural half-sectional view of the present utility model;
fig. 3 is a schematic diagram of the structure at a in fig. 2.
Wherein: 1. a valve body; 2. a valve flap; 3. a valve flap thrust plate; 4. a valve stem; 5. a valve clack nut; 6. winding a gasket; 7. an upper seal seat; 8. a valve cover; 9. a double-ended stud; 10. a hex head nut; 11. a filler; 12. packing pressing sleeve; 13. a packing pressing plate; 14. a positioning pin; 15. a first nut; 16. a swing bolt; 17. a valve stem nut; 18. a screw; 19. a second nut; 20. a gasket; 21. a hand wheel; 22. a nameplate; 23. a rivet; 24. a threaded valve seat; 25. a backstop gasket.
Detailed Description
In order that the manner in which the above recited features, objects and advantages of the present utility model are obtained will become readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Based on the examples in the embodiments, those skilled in the art can obtain other examples without making any inventive effort, which fall within the scope of the utility model. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents, etc. used in the following examples are commercially available unless otherwise specified.
Examples:
as shown in fig. 1-3, the utility model provides a positive pressure internal balance stop valve, which comprises a valve body 1, wherein the valve body 1 is of a three-way structure, the top end of the valve body 1 is provided with a valve clack 2, the top end of the valve clack 2 is provided with a valve rod 4, the inside of the valve clack 2 is provided with a valve clack thrust plate 3, a valve clack nut 5 is arranged between the valve clack 2 and the valve rod 4, the top end of the valve body 1 is provided with a valve cover 8, an upper sealing seat 7 is arranged between the inner side wall of the valve cover 8 and the valve rod 4, a filler 11 is arranged between the top end of the valve cover 8 and the valve rod 4, the top end of the filler 11 is provided with a filler pressing sleeve 12, the top end of the filler pressing sleeve 12 is provided with a filler pressing plate 13, the filler pressing plate 13 is tightly connected with the valve cover 8 through a movable joint bolt 16 and a first nut 15, the outer side of the valve rod 4 is provided with a screw 18 and a valve rod nut 17, the top end of the valve rod 4 is provided with a hand wheel 21, the top end of the hand wheel 21 is provided with a second nut 19, and a threaded valve seat 24 is arranged between the top 2 and the top inner side wall of the valve body 1.
In other embodiments, a retaining washer 25 is arranged between the outer side of the bottom end of the clack nut 5 and the outer side of the clack 2, and the retaining washer 25 is made of PFA plastic particles; a winding gasket 6 is arranged at the bottom of the valve cover 8, and a plurality of groups of studs 9 and hex nuts 10 are arranged between the valve cover 8 and the valve body 1; the bottom end of each set of movable joint bolts 16 is provided with a positioning pin 14; the bottom end of the second nut 19 is provided with a gasket 20, the outer side of the valve cover 8 is provided with a nameplate 22, and the nameplate 22 is fixedly connected with the valve cover 8 through a rivet 23; the outer side of the top end of the valve clack nut 5 is provided with a round-corner truncated cone structure, and the threaded valve seat 24 is made of hard rubber; the waterproof sealing treatment is carried out through the winding gasket 6 at the junction of the valve cover 8 and the valve body 1 to enable the tightness of the whole stop valve structure to be stronger, meanwhile, the junction of the valve rod 4 and the valve clack 2 is reinforced through the valve clack 2 and the valve clack thrust plate 3, on the premise of improving the tightness, the firmness of the device is stronger, meanwhile, the structure at two sides of the valve rod 4 inside the valve body 1 is in a symmetrical state, so that water flow can not generate the condition of overhigh water pressure because of extrusion of other components when passing through the valve body 1, and the service life of the stop valve is prolonged.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. Positive pressure internal balance stop valve, including valve body (1), its characterized in that: valve body (1) is three-way structure, just the top of valve body (1) is provided with valve clack (2), the top of valve clack (2) is provided with valve rod (4), the inside of valve clack (2) is provided with valve clack thrust plate (3), be provided with valve clack nut (5) between valve clack (2) and valve rod (4), the top of valve body (1) is provided with valve gap (8), be provided with between the inside wall of valve gap (8) and valve rod (4) sealing seat (7), be provided with packing (11) between the top of valve gap (8) and valve rod (4), the top of packing (11) is provided with packing gland (12), the top of packing gland (12) is provided with packing clamp plate (13), pass through swing bolt (16) and first nut (15) fastening connection between packing clamp plate (13) and valve gap (8), the outside of valve rod (4) is provided with screw (18) and valve rod (17), the top of valve rod (4) is provided with hand wheel (21), be provided with between the top of hand wheel (21) and valve body (2) screw thread (24).
2. The positive pressure internal balance shut-off valve of claim 1, wherein: a backstop gasket (25) is arranged between the outer side of the bottom end of the valve clack nut (5) and the outer side of the valve clack (2), and the backstop gasket (25) is made of PFA plastic particles.
3. The positive pressure internal balance shut-off valve of claim 1, wherein: the bottom of valve gap (8) is provided with winding gasket (6), just be provided with multiunit double-end stud (9) and hexagon nut (10) between valve gap (8) and valve body (1).
4. The positive pressure internal balance shut-off valve of claim 1, wherein: the bottom ends of each group of movable joint bolts (16) are provided with positioning pins (14).
5. The positive pressure internal balance shut-off valve of claim 1, wherein: the bottom of second nut (19) is provided with packing ring (20), and is provided with nameplate (22) in the outside of valve gap (8), nameplate (22) are through rivet (23) and valve gap (8) fixed connection.
6. The positive pressure internal balance shut-off valve of claim 1, wherein: round-corner truncated cone structures are arranged on the outer sides of the top ends of the valve clack nuts (5), and the threaded valve seats (24) are made of hard rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321716323.1U CN220016104U (en) | 2023-06-30 | 2023-06-30 | Positive pressure internal balance stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321716323.1U CN220016104U (en) | 2023-06-30 | 2023-06-30 | Positive pressure internal balance stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220016104U true CN220016104U (en) | 2023-11-14 |
Family
ID=88672351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321716323.1U Active CN220016104U (en) | 2023-06-30 | 2023-06-30 | Positive pressure internal balance stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220016104U (en) |
-
2023
- 2023-06-30 CN CN202321716323.1U patent/CN220016104U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |