CN220850761U - Anti-overflow stop valve - Google Patents
Anti-overflow stop valve Download PDFInfo
- Publication number
- CN220850761U CN220850761U CN202322344919.XU CN202322344919U CN220850761U CN 220850761 U CN220850761 U CN 220850761U CN 202322344919 U CN202322344919 U CN 202322344919U CN 220850761 U CN220850761 U CN 220850761U
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- Prior art keywords
- valve
- sealing
- ring
- valve body
- water pressure
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- 238000007789 sealing Methods 0.000 claims abstract description 84
- 238000003825 pressing Methods 0.000 claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 239000000945 filler Substances 0.000 claims abstract description 18
- 239000000919 ceramic Substances 0.000 claims description 20
- 230000002265 prevention Effects 0.000 claims 3
- 230000007423 decrease Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 35
- 239000007788 liquid Substances 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 4
- 230000009471 action Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Sliding Valves (AREA)
Abstract
The utility model discloses an anti-overflow stop valve, which comprises a valve body and a sealing mechanism; and (3) a valve body: the middle part of the baffle is provided with a valve hole, the upper end of the valve body is in threaded connection with a valve cover, the middle part of the valve cover is provided with a sliding groove, the screw teeth at the lower end of the inner cambered surface of the sliding groove are in threaded connection with a threaded ring, the inner cambered surface of the threaded ring is provided with a valve rod, the lower end of the valve rod is provided with a valve clack, and the valve clack is matched with the valve hole for installation; sealing mechanism: the sealing mechanism comprises a pressing cap, a pressing ring and sealing filler, wherein the pressing cap is in threaded connection with the upper end of the valve cover, the sealing filler is placed at the upper end of the inside of the sliding groove, the anti-overflow stop valve is tightly attached to a sealing part of the stop valve by water pressure, the water pressure is higher, the sealing effect is stronger, liquid is prevented from overflowing from the stop valve under the condition of higher water pressure, and the anti-overflow stop valve is more suitable for being used in pipelines with higher water pressure.
Description
Technical Field
The utility model relates to the technical field of stop valves, in particular to an anti-overflow stop valve.
Background
The stop valve, also called a stop valve, is one of the most widely used valves, 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 suitable for medium and low pressure and high pressure, the axis of a valve rod of the stop valve is perpendicular to the sealing surface of a valve seat, the opening or closing stroke of the valve rod is relatively short, and the stop valve has very reliable cutting action, so that the valve is very suitable for cutting or adjusting and throttling the medium; in the prior art, the upper end of the stop valve is provided with a filler, the upper end of the stop valve is sealed, liquid can be prevented from leaking outwards along the valve rod, but the stop valve can be used under high pressure sometimes, because the water pressure in the stop valve is large, water flow overflows from the valve rod and the valve cover of the stop valve easily under the action of the water pressure, and the normal use of the stop valve is affected.
Disclosure of utility model
The utility model aims to overcome the existing defects, and provides the anti-overflow stop valve, which can make the fitting of the sealing part of the stop valve tighter by utilizing water pressure, prevent liquid from overflowing from the stop valve under the condition of larger water pressure, make the anti-overflow stop valve more suitable for being used in pipelines with larger water pressure, and effectively solve the problems in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: an anti-overflow stop valve comprises a valve body and a sealing mechanism;
And (3) a valve body: the middle part of the baffle is provided with a valve hole, the upper end of the valve body is in threaded connection with a valve cover, the middle part of the valve cover is provided with a sliding groove, the screw teeth at the lower end of the inner cambered surface of the sliding groove are in threaded connection with a threaded ring, the inner cambered surface of the threaded ring is provided with a valve rod, the lower end of the valve rod is provided with a valve clack, and the valve clack is matched with the valve hole for installation;
Sealing mechanism: the sealing device is arranged at the inner part of the valve cover and the upper end of the valve body respectively, the sealing part of the stop valve is tightly attached by utilizing water pressure, the sealing effect is stronger when the water pressure is larger, and liquid is prevented from overflowing from the stop valve under the condition of larger water pressure, so that the anti-overflow stop valve is more suitable for being used in pipelines with larger water pressure.
Further, sealing mechanism includes presses cap, clamping ring and sealing filler, press cap threaded connection in the upper end of valve gap, sealing filler has been placed to the inside upper end of spout, and the valve rod passes the hole of stepping down in sealing filler and pressing cap middle part respectively, and the clamping ring sets up in the extrados of valve rod, and the clamping ring is located the inside of spout, seals the upper end of spout.
Further, sealing mechanism still includes ceramic ring, slide tube and toper rubber pad, the ceramic ring sets up in the intrados middle part of spout, and slide tube vertical sliding connection is in the extrados of valve rod, and the extrados of slide tube is equipped with the toper rubber pad, and toper rubber pad and ceramic ring cooperation are installed, under the great circumstances of water pressure, improves the sealed effect of spout department.
Further, sealing mechanism still includes recess and sealing gasket, the recess sets up in the upper end of valve body, and the inside of recess is equipped with sealing gasket, and sealing gasket and valve gap cooperation installation seal between valve body and the valve gap.
Further, the diameter of the inner cambered surface of the sealing gasket is gradually reduced from bottom to top, and the sealing effect of the sealing gasket is improved under the condition of high water pressure.
Further, the upper end of the valve rod is provided with a hand wheel, so that the valve rod can be conveniently rotated.
Furthermore, the left end and the right end of the valve body are respectively provided with an internal thread groove, so that the connection of the stop valve and an external pipeline is facilitated.
Compared with the prior art, the utility model has the beneficial effects that: the anti-overflow stop valve has the following advantages:
When the valve rod is rotated through the hand wheel, the valve clack is driven to move up and down, the valve clack is used for blocking the valve hole, whether liquid circulates in the valve body or not is controlled, the break-make of the stop valve is realized, in the use process of the stop valve, the upper end of the chute is sealed through the sealing filler, the gap between the valve body and the valve cover is sealed through the sealing gasket, liquid leakage is prevented, when the water pressure in the valve body is overlarge, acting force is applied to the inclined inner cambered surface of the sealing gasket under the action of the water pressure, the sealing gasket is enabled to be tightly attached to the lower end of the valve cover, meanwhile, the water pressure can push the conical rubber pad to be in contact with the ceramic ring, the middle part of the chute is sealed, the attachment of the sealing part of the stop valve is enabled to be more tight by the water pressure, the sealing effect is stronger, and under the condition of preventing the water pressure from overflowing from the stop valve, so that the overflow-proof stop valve is more applicable to use in pipelines with larger water pressure.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of the structure of the whole device in front section;
Fig. 3 is an enlarged schematic view of the structure of the present utility model at a.
In the figure: 1 valve body, 2 valve gap, 3 spout, 4 screwed rings, 5 valve rod, 6 valve clack, 7 baffles, 8 valve openings, 9 sealing mechanism, 91 press cap, 92 press ring, 93 sealing filler, 94 ceramic ring, 95 sliding tube, 96 conical rubber pad, 97 groove, 98 sealing pad, 10 hand wheel, 11 internal screw thread groove.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-3, the present embodiment provides a technical solution: an overflow-proof stop valve comprises a valve body 1 and a sealing mechanism 9;
Valve body 1: the middle part of the valve body is provided with a baffle 7, the middle part of the baffle 7 is provided with a valve hole 8, the upper end of the valve body 1 is in threaded connection with a valve cover 2, the middle part of the valve cover 2 is provided with a chute 3, the inner thread of the thread at the lower end of the inner cambered surface of the chute 3 is in threaded connection with a thread ring 4, the inner cambered surface of the thread ring 4 is provided with a valve rod 5, the lower end of the valve rod 5 is provided with a valve clack 6, the valve clack 6 is matched with the valve hole 8 for installation, the valve rod 5 is rotated to drive the thread ring 4 to rotate, the valve rod 5 and the valve clack 6 are driven to move up and down through the threaded connection of the thread ring 4 and the thread at the lower end of the inner cambered surface of the chute 3, the valve clack 6 is used for blocking the valve hole 8 to control whether liquid flows in the valve body 1 or not, the on-off of a stop valve is realized, the upper end of the valve rod 5 is provided with a hand wheel 10 to facilitate the rotation of the valve rod 5, and the left and right ends of the valve body 1 are provided with inner thread grooves 11 to facilitate the connection of the stop valve and an external pipeline;
Sealing mechanism 9: the sealing mechanism 9 comprises a pressing cap 91, a pressing ring 92 and a sealing filler 93, wherein the pressing cap 91 is in threaded connection with the upper end of the valve cover 2, the sealing filler 93 is arranged at the upper end of the inner part of the sliding groove 3, the sealing filler 93 is rubber sealing filler, the valve rod 5 respectively penetrates through the sealing filler 93 and a yielding hole in the middle of the pressing cap 91, the pressing ring 92 is arranged on the outer cambered surface of the valve rod 5, the pressing ring 92 is positioned in the sliding groove 3, the valve rod 5 drives the pressing ring 92 to move downwards in the use process of the stop valve, the sealing filler 93 applies pressure through the pressing ring 92 to seal the sealing filler 93 on the upper end of the sliding groove 3, the sealing mechanism 9 further comprises a ceramic ring 94, a sliding tube 95 and a conical rubber gasket 96, the ceramic ring 94 is arranged in the middle of the inner cambered surface of the sliding groove 3, the sliding tube 95 is vertically and slidably connected with the outer cambered surface of the valve rod 5, the outer cambered surface of the sliding tube 95 is provided with the conical rubber gasket 96, the conical rubber pad 96 is matched with the ceramic ring 94, when the water pressure is overlarge, under the action of the water pressure, the whole formed by the sliding tube 95 and the conical rubber pad 96 is pushed to slide upwards, the contact between the conical rubber pad 96 and the ceramic ring 94 is utilized to seal the middle part of the sliding groove 3, the larger the water pressure is, the contact between the conical rubber pad 96 and the ceramic ring 94 is tighter, the liquid is prevented from overflowing along the valve rod 5 under the condition of larger water pressure, the sealing mechanism 9 also comprises a groove 97 and a sealing gasket 98, the groove 97 is arranged at the upper end of the valve body 1, the sealing gasket 98 is arranged in the groove 97, the sealing gasket 98 is a rubber sealing gasket, the sealing gasket 98 is matched with the valve cover 2, in the use process, the sealing gasket 98 is contacted with the lower end of the valve cover 2 to seal the clearance of the valve body 1 and the valve cover 2, the inner cambered surface diameter of the sealing gasket 98 is gradually reduced from bottom to top, when the water pressure in the valve body 1 is overlarge, the inner cambered surface of the sealing gasket 98 is made to be an inclined surface, under the action of the water pressure, acting force is applied to the inclined inner cambered surface of the sealing gasket 98, so that the sealing gasket 98 is tightly attached to the lower end of the valve cover 2, and the attaching of the sealing gasket 98 to the lower end of the valve cover 2 is tighter when the water pressure is larger, and liquid is prevented from overflowing from a gap between the valve body 1 and the valve cover 2 under the condition of larger water pressure.
The utility model provides an anti-overflow stop valve, which has the following working principle: when the ceramic seal ring is used, the valve rod 5 is rotated through the hand wheel 10, the threaded ring 4 is driven to rotate, the valve rod 5 and the valve clack 6 are driven to move up and down through threaded connection of the threaded ring 4 and the lower end of the inner cambered surface of the sliding groove 3, the valve clack 6 is used for blocking the valve hole 8, whether liquid circulates inside the valve body 1 or not is controlled, the break-make of the stop valve is realized, in the use process of the stop valve, the valve rod 5 drives the pressing ring 92 to move downwards, the sealing packing 93 is pressurized through the pressing ring 92, the sealing packing 93 seals the upper end of the sliding groove 3, the gap between the valve body 1 and the valve cover 2 is sealed by utilizing the contact of the sealing gasket 98 and the lower end of the valve cover 2, liquid leakage is prevented, when the water pressure inside the valve body 1 is overlarge, the acting force is applied to the inclined inner cambered surface of the sealing gasket 98 under the action of the water pressure, the sealing gasket 98 is enabled to be more tightly attached to the lower end of the valve cover 2, the water pressure is larger, the sealing gasket 98 is more tightly attached to the lower end of the valve cover 2, the situation that liquid overflows from the gap between the valve body 1 and the valve cover 2 is prevented, the sliding gasket 96 is pushed to slide under the action of the water pressure, the action of the water pressure 96 is more tightly contacts the ceramic sealing gasket, the ceramic gasket 94, and the ceramic sealing ring is more tightly contacts the middle part of the valve body, and the ceramic sealing ring 94 is more tightly contacts with the valve body, and the ceramic sealing ring is more tightly, and the ceramic sealing ring is in the sealing ring is in contact, and has the sealing ring.
The foregoing is only illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, and all equivalent structures or equivalent flow modifications which may be made by the teachings of the present utility model and the accompanying drawings or which may be directly or indirectly employed in other related art are within the scope of the utility model.
Claims (4)
1. An anti-overflow stop valve, its characterized in that: comprises a valve body (1) and a sealing mechanism (9);
Valve body (1): the middle part of the valve body is provided with a baffle (7), the middle part of the baffle (7) is provided with a valve hole (8), the upper end of the valve body (1) is in threaded connection with a valve cover (2), the middle part of the valve cover (2) is provided with a chute (3), the inner thread of a thread at the lower end of the intrados of the chute (3) is connected with a thread ring (4), the intrados of the thread ring (4) is provided with a valve rod (5), the lower end of the valve rod (5) is provided with a valve clack (6), and the valve clack (6) is matched with the valve hole (8);
Sealing mechanism (9): are respectively arranged in the valve cover (2) and at the upper end of the valve body (1);
The sealing mechanism (9) comprises a pressing cap (91), a pressing ring (92) and a sealing filler (93), wherein the pressing cap (91) is in threaded connection with the upper end of the valve cover (2), the sealing filler (93) is placed at the upper end of the inside of the sliding groove (3), the valve rod (5) respectively penetrates through the sealing filler (93) and a yielding hole in the middle of the pressing cap (91), the pressing ring (92) is arranged on the outer cambered surface of the valve rod (5), and the pressing ring (92) is positioned in the sliding groove (3);
The sealing mechanism (9) further comprises a ceramic ring (94), a sliding tube (95) and a conical rubber pad (96), wherein the ceramic ring (94) is arranged in the middle of the inner cambered surface of the sliding groove (3), the sliding tube (95) is vertically and slidably connected to the outer cambered surface of the valve rod (5), the conical rubber pad (96) is arranged on the outer cambered surface of the sliding tube (95), and the conical rubber pad (96) is matched with the ceramic ring (94);
The sealing mechanism (9) further comprises a groove (97) and a sealing gasket (98), the groove (97) is formed in the upper end of the valve body (1), the sealing gasket (98) is arranged in the groove (97), and the sealing gasket (98) is mounted in a matched mode with the valve cover (2).
2. An overfill prevention shutoff valve as claimed in claim 1, wherein: the diameter of the intrados of the sealing gasket (98) gradually decreases from bottom to top.
3. An overfill prevention shutoff valve as claimed in claim 1, wherein: the upper end of the valve rod (5) is provided with a hand wheel (10).
4. An overfill prevention shutoff valve as claimed in claim 1, wherein: the left end and the right end of the valve body (1) are respectively provided with an internal thread groove (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322344919.XU CN220850761U (en) | 2023-08-30 | 2023-08-30 | Anti-overflow stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322344919.XU CN220850761U (en) | 2023-08-30 | 2023-08-30 | Anti-overflow stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220850761U true CN220850761U (en) | 2024-04-26 |
Family
ID=90772043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322344919.XU Active CN220850761U (en) | 2023-08-30 | 2023-08-30 | Anti-overflow stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220850761U (en) |
-
2023
- 2023-08-30 CN CN202322344919.XU patent/CN220850761U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |