CN209622137U - A kind of high leakproofness Tiny Drag Slow Shut Check Valves - Google Patents
A kind of high leakproofness Tiny Drag Slow Shut Check Valves Download PDFInfo
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- CN209622137U CN209622137U CN201920231165.8U CN201920231165U CN209622137U CN 209622137 U CN209622137 U CN 209622137U CN 201920231165 U CN201920231165 U CN 201920231165U CN 209622137 U CN209622137 U CN 209622137U
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- sealing shroud
- valve body
- gasket
- flap
- check valves
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Abstract
The utility model relates to a kind of check-valves, especially a kind of high leakproofness Tiny Drag Slow Shut Check Valves, it includes: valve body and sealing shroud, valve rod is equipped in the valve body, the valve rod lower end is protruded into valve body and is connect with valve body, four pieces of link blocks are welded on the valve interior wall, symmetrically arranged two link block in valve body upper and lower part passes through the both ends of screw connection sealing shroud respectively, several tapped blind holes are equidistantly laid on the sealing shroud, the fastening screw installed on the tapped blind hole passes through through-hole and gasket；The utility model passes through setting sealing shroud, sealing shroud is arranged with gasket, when fluid countercurrent current, flap is pushed to close, after flap completely closes, flap squeezes gasket, the pressure that gasket is born is bigger, and sealing effect is better, to improve sealing performance, and sealing shroud is installed by screw, is easy dismounting；It is arranged by the arc of sealing shroud, resistance can be reduced, reduces fluid to the impact force of sealing shroud.
Description
Technical field
The utility model relates to a kind of check-valves, especially a kind of high leakproofness Tiny Drag Slow Shut Check Valves.
Background technique
Tiny Drag Slow Shut Check Valves is also known as non-return valve, and effect is to prevent the medium in pipeline from flowing backwards.Opening and closing element leans on medium flow field
Dynamic and strength voluntarily opens or closes, to prevent the valve of medium refluence check-valves.Check-valves belongs to automatic valve class, main to use
In on the pipeline of medium one-way flow, only medium is allowed to flow to a direction, to try to avert accidents.
Existing Tiny Drag Slow Shut Check Valves is also known as non-return valve, a kind of Tiny Drag Slow Shut Check Valves, Shen as disclosed in Chinese patent
Please number: 201721893849.1, including valve body, be equipped with valve rod in valve body, valve rod lower end is protruded into valve body and connect with valve body, upper end
Valve body upper end is stretched out, valve rod upper end is equipped with damping oil cylinder, flap is equipped at left and right sides of valve rod, and flap is connected by socket block and valve rod
It connects, torque spring is socketed on valve rod, flap is realized by torque spring and is closed, and needle valve, flap are equipped on front side of damping oil cylinder
Outside has the ethylene propylene diene rubber of 2-4mm, and the closure of flap is divided into quick-make and slowly closure, when flap closure angle is big
It is quick-make when 8 °, meets using dual method of closing for slowly closure when being equal to 0-8 ° and eliminate water hammer effect simultaneously again
The requirement that energy quick-make prevents water flow from flowing back.
But there are still deficiencies, since ethylene propylene diene rubber of the check-valves on the outside of flap with 2-4mm is sealed,
Leakproofness glue is poor, and in use, and sealing ring often falls off under the impact of liquid, needs to be replaced frequently, service life
It is short.
Summary of the invention
In view of the deficiencies of the prior art, the utility model, which provides one kind, can be improved sealing performance, and gasket is not easy to take off
The high leakproofness Tiny Drag Slow Shut Check Valves fallen.
The technical solution of the utility model are as follows: a kind of high leakproofness Tiny Drag Slow Shut Check Valves, it includes: valve body and sealing
Set, the valve body is interior to be equipped with valve rod, and the valve rod lower end is protruded into valve body and connect with valve body, and valve body upper end is stretched out in upper end, described
Valve rod upper end is equipped with damping oil cylinder, and the valve rod two sides are equipped with flap, and the flap is connect by being socketed block with valve rod, the valve
It is socketed with torque spring on bar, is equipped with needle valve on front side of the damping oil cylinder, the valve body, which is located on the inner wall on the right side of flap, to be welded
Four pieces of link blocks are connected to, symmetrically arranged two link block in valve body upper and lower part passes through the two of screw connection sealing shroud respectively
End, so that two sealing shrouds are attached with valve body, the sealing shroud is semicircle, is equidistantly laid on the sealing shroud
Several tapped blind holes are provided with through-hole corresponding with tapped blind hole on the outer wall of the valve body, and the through-hole passes through sealing
Circle is sealed, and the fastening screw installed on the tapped blind hole passes through through-hole and gasket.
Further, the side of the sealing shroud is arc-shaped, reduces resistance, is passed through convenient for fluid.
Further, it is arranged fluted on the sealing shroud, the section of the groove is blocked on the groove in T-shaped
Equipped with gasket, the both ends of the groove are provided with fixed block, and the side of the gasket is provided with protrusion, the shape of the protrusion
The shape of shape and groove is adapted, and for being caught in groove, the other side of the gasket is smooth setting.
Further, it is additionally provided with magnetic attracting contact on the link block, is provided on the sealing shroud and is inhaled with magnetic
The corresponding magnetic element in conjunction contact position is easily installed for the actuation of sealing shroud and link block.
Further, the material of the sealing shroud is stainless steel or anti-corrosion carbon steel.
Further, the material of the gasket is silica gel or ethylene propylene diene rubber.
The application method of the utility model:
Before use, first setting gasket card in sealing shroud, then gasket and sealing shroud are fixed by fixed block, then
Screw and fastening screw are installed respectively after the position of sealing shroud and link block being fixed by magnetic attracting, so that sealing shroud be pacified
In valve body.
In use, fluid is arranged by the arc of sealing shroud, resistance can be reduced, reduces impact of the fluid to sealing shroud
Power, forward fluid motion push flap to open, and when fluid countercurrent current, flap are pushed to close, and after flap completely closes, flap is squeezed
Densification packing, the pressure that gasket is born is bigger, and sealing effect is better.
The utility model has the following beneficial effects: the utility model, by setting sealing shroud, sealing shroud is arranged with gasket, when
When fluid countercurrent current, flap is pushed to close, after flap completely closes, flap squeezes gasket, and the pressure that gasket is born is bigger, close
It is better to seal effect, to improve sealing performance, and sealing shroud is installed by screw, is easy dismounting；Pass through the arc of sealing shroud
Shape setting, can reduce resistance, reduce fluid to the impact force of sealing shroud.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of sealing shroud；
Fig. 3 is the structural schematic diagram of valve body；
Fig. 4 is the sectional view of sealing shroud.
In figure, 1, valve body；2, valve rod；3, damping oil cylinder；4, flap；5, it is socketed block；6, torque spring；7, needle valve；8,
Sealing shroud；9, screw；10, tapped blind hole；11, fastening screw；12, groove；13, gasket.
Specific embodiment
Specific embodiment of the present utility model is described further with reference to the accompanying drawing:
As shown in Figs 1-4, a kind of high leakproofness Tiny Drag Slow Shut Check Valves, it includes: valve body 1 and sealing shroud 8, the valve body
Valve rod 2 is equipped in 1,2 lower end of valve rod is protruded into valve body 1 and connect with valve body 1, and 1 upper end of valve body, the valve rod 2 are stretched out in upper end
Upper end is equipped with damping oil cylinder 3, and 2 two sides of valve rod are equipped with flap 4, and the flap 4 is connect by being socketed block 5 with valve rod 2, described
It is socketed with torque spring 6 on valve rod 2, needle valve 7 is equipped on front side of the damping oil cylinder 3, the valve body 1 is located at 4 right side of flap
Four pieces of link blocks are welded on inner wall, symmetrically arranged two link block in 1 upper and lower part of valve body passes through screw 9 respectively and connects
The both ends of sealing shroud 8, so that two sealing shrouds 8 are attached with valve body 1, the sealing shroud 8 is semicircle, the sealing shroud
It is equidistantly laid with several tapped blind holes 10 on 8, is provided on the outer wall of the valve body 1 corresponding with tapped blind hole 10 logical
Hole, the through-hole are sealed by a seal ring, and the fastening screw 11 installed on the tapped blind hole 10 passes through through-hole and sealing
Pad 13.
The side of the sealing shroud 8 is arc-shaped, reduction resistance, convenient for fluid process.
It is arranged fluted 12 on the sealing shroud 8, the section of the groove 12 is blocked on the groove 12 and set in T-shaped
There is gasket 13, the both ends of the groove 12 are provided with fixed block, and the side of the gasket 13 is provided with protrusion, the protrusion
Shape and the shape of groove 12 be adapted, for being caught in groove 12, the other side of the gasket 13 is smooth setting.
It is additionally provided with magnetic attracting contact on the link block, is provided on the sealing shroud 8 and magnetic attracting contact position
Corresponding magnetic element is set, for the actuation of sealing shroud 8 and link block, is easily installed.
The material of the sealing shroud 8 is stainless steel or anti-corrosion carbon steel.
The material of the gasket 13 is silica gel or ethylene propylene diene rubber.
The circle that magnetic attracting contact in the present embodiment is produced using Xin Rong magnetic material Co., Ltd, Shenzhen
Magnet.
The description of the embodiments and the specification only illustrate the principle of the present utility model and most preferred embodiment, is not taking off
Under the premise of from the spirit and scope of the utility model, the utility model also has various changes and improvements, these changes and improvements
It falls within the scope of the claimed invention.
Claims (6)
1. a kind of high leakproofness Tiny Drag Slow Shut Check Valves, it is characterised in that: it includes valve body (1) and sealing shroud (8), the valve body
(1) valve rod (2) are equipped in, valve rod (2) lower end is protruded into valve body (1) and connect with valve body (1), and upper end is stretched out on valve body (1)
End, valve rod (2) upper end are equipped with damping oil cylinder (3), and valve rod (2) two sides are equipped with flap (4), and the flap (4) passes through
Socket block (5) is connect with valve rod (2), is socketed with torque spring (6) on the valve rod (2), is equipped on front side of the damping oil cylinder (3)
Needle valve (7), the valve body (1), which is located on the inner wall on the right side of flap (4), is welded with four pieces of link blocks, valve body (1) top
Pass through the both ends of screw (9) connection sealing shroud (8) respectively with symmetrically arranged two link block in lower part, the sealing shroud (8) is half
Circle is equidistantly laid with several tapped blind holes (10) on the sealing shroud (8), is provided on the outer wall of the valve body (1)
Through-hole corresponding with tapped blind hole (10), the through-hole are sealed by a seal ring, and are installed on the tapped blind hole (10)
Fastening screw (11) pass through through-hole and gasket (13).
2. a kind of high leakproofness Tiny Drag Slow Shut Check Valves according to claim 1, it is characterised in that: the sealing shroud (8)
Side be it is arc-shaped.
3. a kind of high leakproofness Tiny Drag Slow Shut Check Valves according to claim 2, it is characterised in that: the sealing shroud (8)
Upper setting fluted (12), the section of the groove (12) are arranged with gasket (13) on the groove (12) in T-shaped,
The both ends of the groove (12) are provided with fixed block, and the side of the gasket (13) is provided with protrusion, the shape of the protrusion
It is adapted with the shape of groove (12), the other side of the gasket (13) is smooth setting.
4. a kind of high leakproofness Tiny Drag Slow Shut Check Valves according to claim 3, it is characterised in that: on the link block also
It is provided with magnetic attracting contact, is provided with magnetic element corresponding with magnetic attracting contact position on the sealing shroud (8).
5. a kind of high leakproofness Tiny Drag Slow Shut Check Valves according to claim 4, it is characterised in that: the sealing shroud (8)
Material be stainless steel or anti-corrosion carbon steel.
6. a kind of high leakproofness Tiny Drag Slow Shut Check Valves according to claim 5, it is characterised in that: the gasket (13)
Material be silica gel or ethylene propylene diene rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920231165.8U CN209622137U (en) | 2019-02-25 | 2019-02-25 | A kind of high leakproofness Tiny Drag Slow Shut Check Valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920231165.8U CN209622137U (en) | 2019-02-25 | 2019-02-25 | A kind of high leakproofness Tiny Drag Slow Shut Check Valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209622137U true CN209622137U (en) | 2019-11-12 |
Family
ID=68454469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920231165.8U Active CN209622137U (en) | 2019-02-25 | 2019-02-25 | A kind of high leakproofness Tiny Drag Slow Shut Check Valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209622137U (en) |
-
2019
- 2019-02-25 CN CN201920231165.8U patent/CN209622137U/en active Active
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| GR01 | Patent grant |