CN213298835U - Pressure type stop valve - Google Patents
Pressure type stop valve Download PDFInfo
- Publication number
- CN213298835U CN213298835U CN202022046948.4U CN202022046948U CN213298835U CN 213298835 U CN213298835 U CN 213298835U CN 202022046948 U CN202022046948 U CN 202022046948U CN 213298835 U CN213298835 U CN 213298835U
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- Prior art keywords
- valve
- pressure
- fixedly connected
- cavity
- sealing
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- 238000007789 sealing Methods 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000012856 packing Methods 0.000 claims description 15
- 239000004429 Calibre Substances 0.000 abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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- Sliding Valves (AREA)
Abstract
The utility model discloses a pressure type stop valve, which comprises a pressure sealing valve cover; the valve body is fixedly connected to the bottoms of the left side and the right side of the pressure sealing valve cover, the valve body comprises a valve cavity, a water inlet hole is formed in the left side of the valve cavity, a water outlet hole is formed in the right side of the valve cavity, a valve port is arranged at the top of the valve cavity, and sealing strips are fixedly connected to the left side and the right side of the valve port; the connecting discs are fixedly arranged on the left side and the right side of the valve body; the connecting blocks are fixedly connected to the left side and the right side of the outer surface of the pressure sealing valve cover; this pressure type stop valve has formed a movable airtight space through pressure seal valve gap and valve clack, and also waterproof seal groove, under vacuum state, the resistance that the valve clack removed disappears, makes things convenient for the valve clack can not have the pressure difference when reciprocating to switching torque greatly reduced is applicable to high pressure, heavy-calibre valve, long service life.
Description
Technical Field
The utility model particularly relates to a pressure type stop valve.
Background
The stop valve has wide application, is the most direct and reliable valve variety for sealing in all valves, and is not only suitable for medium and low pressure, but also suitable for working conditions of low temperature, high pressure, ultrahigh pressure and the like. The sealing principle of the stop valve is that force is transmitted to the valve clack sealing surface through the valve rod by means of a transmission mechanism, the valve clack sealing surface and the valve seat sealing surface form forced sealing by means of an extrusion elastic deformation principle, friction force is not generated on the sealing surface, and sealing is reliable.
At present, the stop valve is widely applied to the industries of electric power, hydraulic power, chemical engineering, oil refining, metallurgy and the like. The medium channel of current stop valve is pressure unbalanced structure usually at the upper reaches end and the low reaches end of valve clack, and its medium stream flows in from the low side of sealed face when opening, flows out from high-end behind the sealed face, and like this, when the valve is closed, the upper and lower both ends of valve clack are born very big medium pressure differential, has produced very big upward unbalanced force from this, makes the valve close the difficulty, can not seal even, high pressure, heavy-calibre stop valve are so more, and moment is big during the operation, and it is inconvenient to use.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a pressure type stop valve to prior art's weak point, the upper and lower both ends of valve clack are bearing very big medium pressure difference, have produced very big unbalance force that makes progress from this, make the valve close the difficulty, can not sealed purpose even.
In order to solve the technical problem, the utility model provides a pressure type stop valve, which comprises a pressure sealing valve cover;
the valve body is fixedly connected to the bottoms of the left side and the right side of the pressure sealing valve cover and comprises a valve cavity, a water inlet hole is formed in the left side of the valve cavity, a water outlet hole is formed in the right side of the valve cavity, a valve port is arranged at the top of the valve cavity, and sealing strips are fixedly connected to the left side and the right side of the valve port;
the connecting discs are fixedly arranged on the left side and the right side of the valve body;
the connecting block, the connecting block fixed connection in the left and right sides of pressure seal valve gap surface.
The valve body is the shape that is a communicating pipe, and the connection pad of outside left and right sides passes through the bolt fastening in the junction of pipeline, and the connection pad will be higher than the valve body, and the place that both ends are higher from top to bottom is the place that is used for fixing bolt, and the connection pad adopts metal material, for example iron, and is corrosion-resistant, long service life, and waterproof type is good, is difficult for being destroyed again.
The valve cavity inside the valve body is similar to a three-way pipe in shape, the left side is a water inlet hole, the right side is a water outlet hole, the water inlet hole and the water outlet hole are leveled at the same height, a cavity connected with the water inlet hole is inclined downwards, and a cavity connected with the water outlet hole is inclined upwards, so that the upper cavity and the lower cavity are arranged inside the valve cavity, the water inlet hole is connected with the lower cavity, the water outlet hole is connected with the upper cavity, and sealing strips connected with the left side and the right side of a valve port at the top of the valve body can.
Preferably, the left and right sides of connecting block surface all fixedly connected with presss from both sides tight strip, the top fixedly connected with solid fixed ring that presss from both sides tight strip.
The connecting block is C-shaped, and the left side and the right side of the pressure sealing valve cover are respectively provided with one connecting block.
The clamping strip is an arc-shaped iron block and is connected with the pressure sealing valve cover and the fixing ring to play a role in supporting the fixing ring.
Preferably, a threaded rod is meshed inside the fixing ring, a connecting ring is fixedly connected to the top of the threaded rod, and a handle is sleeved on the outer surface of the connecting ring.
The fixed ring is internally provided with threads which are meshed with the threaded rod.
The handle is a circular turntable.
The connecting ring is used for connecting the handle and the threaded rod, so that the threaded rod rotates together when the handle is rotated.
Preferably, the bottom end of the threaded rod is fixedly connected with a valve rod.
Preferably, the bottom end of the valve rod is fixedly connected with a valve clack, and a waterproof pad is fixedly mounted on the outer surface of the valve clack.
The valve clack is square, the middle of the valve clack is connected with the valve rod, the waterproof pad is made of rubber and is airtight and waterproof, and the waterproof pad wraps the outer surface of the valve clack.
Preferably, the top of the pressure sealing valve cover is fixedly connected with a packing pressing plate through a fixing bolt.
The pressure sealing valve cover is in a convex block shape, and the protruding position is used for fixing a bolt.
Preferably, the inside of the packing pressing plate is provided with a mounting cavity, and a packing ring is fixedly mounted in the mounting cavity.
Compared with the prior art, the utility model provides a pair of pressure type stop valve has following beneficial effect:
the utility model provides a pressure type stop valve sets up the entrance at the valve body top through the pressure seal valve gap, and the valve clack just plugs up the entry, has formed a movable airtight space between pressure seal valve gap and the valve clack, also is exactly the pressure seal groove, and under vacuum state, the resistance that the valve clack removed disappears, makes things convenient for the valve clack can not have the pressure difference when reciprocating to switching torque greatly reduced is applicable to high pressure, heavy-calibre valve, long service life.
Drawings
Fig. 1 is a schematic structural view of a preferred embodiment of a pressure stop valve according to the present invention;
FIG. 2 is an enlarged schematic view of the structure shown at A in FIG. 1;
fig. 3 is a front sectional structural schematic view of the valve body shown in fig. 1.
Reference numbers in the figures: 1. pressure seal valve gap, 2, valve clack, 3, waterproof pad, 4, valve rod, 5, threaded rod, 6, connecting ring, 7, handle, 8, the tight strip of clamp, 9, the pressure seal groove, 10, solid fixed ring, 11, fixing bolt, 12, packing clamp plate, 13, clamping bolt, 14, connecting block, 15, valve body, 151, valve pocket, 152, inlet opening, 153, sealing strip, 154, apopore, 155, valve port, 16, packing gland, 17, packing ring, 18, installation cavity.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and embodiments.
Please refer to fig. 1, fig. 2 and fig. 3 in combination, wherein fig. 1 is a schematic structural diagram of a preferred embodiment of a pressure stop valve according to the present invention; FIG. 2 is an enlarged schematic view of the structure shown at A in FIG. 1; fig. 3 is a front sectional structural schematic view of the valve body shown in fig. 1. A pressure type stop valve comprises a pressure sealing valve cover 1;
the valve body 15 is fixedly connected to the bottoms of the left side and the right side of the pressure seal valve cover 1, the valve body 15 comprises a valve cavity 151, a water inlet 152 is formed in the left side of the valve cavity 151, a water outlet 154 is formed in the right side of the valve cavity 151, a valve port 155 is formed in the top of the valve cavity 151, and sealing strips 153 are fixedly connected to the left side and the right side of the valve port 155;
the connecting disc 19 is fixedly arranged on the left side and the right side of the valve body 15;
and the connecting blocks 14 are fixedly connected to the left side and the right side of the outer surface of the pressure sealing valve cover 1.
The length between two sealing strips 153 is just the valve clack 2 is put into, and waterproof and gas-tight performance is good, and the distance that valve clack 2 reciprocated can not exceed sealing strip 153 for inside pressure seal groove 9 presents a sealed state all the time, and inside presents a vacuum state.
The left and right sides of the outer surface of the connecting block 14 are fixedly connected with clamping strips 8, and the top ends of the clamping strips 8 are fixedly connected with fixing rings 10.
The clamping strip 8 has the function of fixing the fixing ring 10 immovably, and the fixing ring 10 cannot be driven to rotate when the threaded rod 5 rotates.
The inner part of the fixing ring 10 is engaged with a threaded rod 5, the top of the threaded rod 5 is fixedly connected with a connecting ring 6, and the outer surface of the connecting ring is sleeved with a handle 7.
The handle 7 is rotated clockwise, so that the threaded rod 5 can be driven to rotate to drive the valve rod 4 and the valve clack 2 to rotate upwards; the counterclockwise rotation may bring the flap 2 to rotate downward.
And the bottom end of the threaded rod 5 is fixedly connected with a valve rod 4.
The valve rod 4 penetrates through the packing press plate 16 and the pressure sealing valve cover 1.
The bottom fixedly connected with valve clack 2 of valve rod 4, the fixed surface of valve clack 2 installs waterproof pad 3.
The flap 2 serves to block the flow of water rising out of the outlet opening 154.
The top of the pressure sealing valve cover 1 is fixedly connected with a packing pressing plate 12 through a fixing bolt 11.
The packing pressing plate 12 is T-shaped, and the left end and the right end are fixed on the top of the pressure sealing valve cover 1 through the fixing bolts 11.
The packing pressing plate 12 is internally provided with a mounting cavity 18, and a packing ring 17 is fixedly mounted in the mounting cavity 18.
The utility model provides a pair of pressure type stop valve's theory of operation as follows:
when the valve works, the valve body 15 is installed on a pipeline, the left and right connecting discs 19 of the valve body 15 are fixed on the pipeline through bolts, then a water valve at the source of the pipeline discharges water, the water is poured into the valve cavity 151 of the valve body 15 through the water inlet hole 152, the water inlet hole 152 and the water outlet hole 154 are communicated and blocked because the waterproof pad 3 at the bottom of the valve clack 2 is blocked at the valve port 155 of the valve cavity 151, and the water cannot flow out.
When water is required to flow out, a worker rotates the handle 7 clockwise, the handle 7 is stressed to drive the connecting ring 6 to rotate, the connecting ring 6 drives the threaded rod 5 connected with the bottom to rotate clockwise, the inner surface of the fixing ring 10 is also provided with threads, but the fixing ring 10 is fixed with the bottom connecting block 14, the connecting block 14 is fixed on the surface of the pressure sealing valve cover 1 through the clamping bolt 13, and the pressure sealing valve cover 1 is fixed, so that the fixing ring 10 cannot be rotated when being meshed, the threaded rod 5 is meshed with the fixing ring 10 when rotating, the threaded rod 5 also drives the valve rod 4 to move upwards when rotating, the valve rod 4 drives the valve clack 2 and the waterproof pad 3 to move upwards when moving upwards, a communication port is formed between the water inlet 152 and the water outlet 154, water flows to the water outlet 154 along the exposed communication port, when water drainage is not required, the handle 7 only needs to rotate anticlockwise, put down valve clack 2 and waterproof pad 3 and plug up the intercommunication mouth can, water is stifled in the cavity of inlet opening 152 by valve clack 2 again, and apopore 154 is oblique downwards because the cavity of inside, remaining water can flow away fast, can not cause the refluence yet.
Compared with the prior art, the utility model provides a pair of pressure type stop valve has following beneficial effect:
the utility model provides a pressure type stop valve sets up the entrance at 15 tops of valve body through pressure seal valve gap 1, and valve clack 2 just plugs up the entry, has formed a movable airtight space between pressure seal valve gap 1 and the valve clack 2, also is exactly pressure seal groove 9, under vacuum state, the resistance that valve clack 2 removed disappears, makes things convenient for valve clack 2 can not have the pressure difference when reciprocating to switching torque greatly reduced is applicable to high pressure, heavy-calibre valve, long service life.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.
Claims (7)
1. A pressure type stop valve is characterized by comprising a pressure sealing valve cover;
the valve body is fixedly connected to the bottoms of the left side and the right side of the pressure sealing valve cover and comprises a valve cavity, a water inlet hole is formed in the left side of the valve cavity, a water outlet hole is formed in the right side of the valve cavity, a valve port is arranged at the top of the valve cavity, and sealing strips are fixedly connected to the left side and the right side of the valve port;
the connecting discs are fixedly arranged on the left side and the right side of the valve body;
the connecting block, the connecting block fixed connection in the left and right sides of pressure seal valve gap surface.
2. A pressure-type shut-off valve as defined in claim 1, wherein: the left and right sides of connecting block surface all fixedly connected with presss from both sides tight strip, press from both sides the top fixedly connected with fixed ring of tight strip.
3. A pressure-type shut-off valve as defined in claim 2, wherein: the inner part of the fixing ring is meshed with a threaded rod, the top of the threaded rod is fixedly connected with a connecting ring, and a handle is sleeved on the outer surface of the connecting ring.
4. A pressure-type shut-off valve as defined in claim 3, wherein: the bottom end of the threaded rod is fixedly connected with a valve rod.
5. A pressure-type shut-off valve as defined in claim 4, wherein: the bottom fixed connection of valve rod has the valve clack, the surface fixed mounting of valve clack has the waterproof pad.
6. A pressure-type shut-off valve as defined in claim 1, wherein: the top of the pressure sealing valve cover is fixedly connected with a packing pressing plate through a fixing bolt.
7. A pressure-type shut-off valve as defined in claim 6, wherein: the packing press plate is characterized in that a mounting cavity is formed in the packing press plate, and a packing ring is fixedly mounted in the mounting cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022046948.4U CN213298835U (en) | 2020-09-17 | 2020-09-17 | Pressure type stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022046948.4U CN213298835U (en) | 2020-09-17 | 2020-09-17 | Pressure type stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213298835U true CN213298835U (en) | 2021-05-28 |
Family
ID=76031890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022046948.4U Expired - Fee Related CN213298835U (en) | 2020-09-17 | 2020-09-17 | Pressure type stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213298835U (en) |
-
2020
- 2020-09-17 CN CN202022046948.4U patent/CN213298835U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210528 |