CN220151965U - Swing check valve with locking function - Google Patents
Swing check valve with locking function Download PDFInfo
- Publication number
- CN220151965U CN220151965U CN202321459089.9U CN202321459089U CN220151965U CN 220151965 U CN220151965 U CN 220151965U CN 202321459089 U CN202321459089 U CN 202321459089U CN 220151965 U CN220151965 U CN 220151965U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- swing check
- check valve
- valve shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Check Valves (AREA)
Abstract
The utility model discloses a swing check valve with a locking function, and relates to the technical field of valves. The check valve can indicate the opening condition of the valve plate outside the valve body and can lock the valve rod in a mechanical mode, and the check valve is simple in design, convenient to operate, safer and more reliable.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to a swing check valve with a locking function.
Background
The check valve is a valve which is opened or closed by the aid of medium flow and force by itself to prevent medium backflow, and belongs to automatic valves. The swing check valve is one of check valves, adopts an internal rocker swing structure, and at present, the conventional swing check valve cannot lock the flow of medium in a pipeline under an emergency, cannot intuitively observe the opening and closing conditions of a valve plate in the valve, and has limitations.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a swing check valve with a locking function.
The technical scheme provided by the utility model is as follows:
the utility model provides a swing check valve with locking function, includes the valve body, be equipped with intake chamber, play water cavity, non return structure in the valve body, the non return structure includes valve shaft, rocking arm, valve plate, rocking arm one end is rotated with the valve shaft and is connected, and the other end links to each other with the valve plate, the valve plate receives the medium impact of intake chamber end can rotate and opens to drive the valve shaft and rotate, valve shaft one end extends to outside the valve body, the tip rotation that the valve shaft extends the valve body is connected with swing mechanism, swing mechanism and valve shaft linkage, be equipped with between swing mechanism and the valve body and be used for locking swing mechanism makes its unable pivoted locking mechanism.
The swinging mechanism comprises a connecting piece, a connecting rod and a heavy hammer, wherein the connecting piece is hinged with the valve shaft, one end of the connecting rod is connected with the connecting piece, and the other end of the connecting rod is connected with the heavy hammer.
The weight has a first position where the upper pendulum opens the valve plate and a second position where the lower pressure closes the valve plate.
The locking mechanism comprises a bolt, a pin hole for inserting the bolt is formed in the connecting rod, and a locking hole is formed in the valve body at a second position corresponding to the heavy hammer.
The valve plate comprises a contact part and a bulge part, wherein the contact part is contacted with the valve body when the valve plate is closed, and the bulge part is in an arched bulge shape.
The contact part is provided with a first sealing ring, and the valve body is provided with a second sealing ring corresponding to the contact part.
The valve shaft is positioned in the valve body, two ends of the valve shaft are fixed through screw plugs, and O-shaped rings are arranged on the outer side of the valve shaft, which is close to the valve body.
The utility model has the beneficial effects that: according to the valve, the valve shaft extends out of the valve body, the swing mechanism and the locking mechanism are arranged on the valve shaft extending out of the valve body, the swing mechanism is used for indicating the opening condition of the valve plate, the locking mechanism is used for locking the swing mechanism so as to lock the valve shaft, and the valve rod is locked out of the valve body in a mechanical mode, so that the valve is simple in design, convenient to operate, safer and more reliable.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present utility model;
fig. 2 is a cross-sectional structural view of an embodiment of the present utility model.
Description of the embodiments
Embodiments of the present utility model are further described below with reference to the accompanying drawings.
As shown in fig. 1-2, a swing check valve with locking function comprises a valve body 1, wherein a water inlet cavity 101, a water outlet cavity 102 and a check structure are arranged in the valve body, the check structure comprises a valve shaft 2, a rocker arm 3 and a valve plate 4, the upper end of the rocker arm 3 is hinged with the valve shaft 2, the lower end of the rocker arm is connected with the center point of the valve plate 4 through a screw plug, the valve plate 4 is disc-shaped, the valve plate 4 is impacted by a medium at the 101 end of the water inlet cavity and can be rotated upwards to drive the rocker arm 3 to rotate, so that the valve shaft 2 is driven to rotate, one end of the valve shaft 2 extends out of the valve body 1, the end part of the valve shaft 2 extending out of the valve body is rotationally connected with a swinging mechanism, and a locking mechanism for locking the swinging mechanism to enable the swinging mechanism to be unable to rotate is arranged between the swinging mechanism and the valve body.
In this embodiment, the swinging mechanism includes a connecting piece 9, a connecting rod 8, and a weight 7, the connecting piece 9 is hinged to the valve shaft 2, one end of the connecting rod 8 is connected to the connecting piece 9, the other end is connected to the weight 7, the swinging mechanism can indicate the open/close state of the valve plate 4, the weight 7 has a first position 11 where the valve plate 4 is opened by swinging up and a second position 10 where the valve plate 4 is closed by pressing down, the weight 7 provides an initial pressure for the valve plate 4 to make it contact with the valve body 1 to keep the closed state, when a medium impacts the valve plate 4 from the side of the water inlet cavity 101, the impact force opens the valve plate and drives the valve shaft 2 to rotate, thereby driving the weight 7 to swing up, and the open/close state of the valve plate 4 can be determined according to the position of the weight 7.
In this embodiment, the locking mechanism includes bolt 12, be equipped with the pinhole 13 that is used for pegging graft bolt 12 on the connecting rod 8, the second position that valve body 1 corresponds weight 7 is equipped with locking hole 14, under the normal operating condition of check valve, need not to insert the bolt, when the flow that the emergency needs the dead medium takes place, need push down weight 7 to second position 10 earlier, insert pinhole 13 and insert the bolt 12 in locking hole 14 again, at this moment, connecting rod 8 can't rotate any more, namely with the valve shaft 2 of connecting rod linkage, rocking arm 3, valve plate 4 can't all rotate any more, accomplish the flow of dead medium, this kind of mechanical type dead valve rod of locking, and is simple in design, convenient operation, safer, reliable.
Further, the valve plate 4 includes a contact portion 42 and a protrusion portion 41, the contact portion 42 is an extension of the valve plate 4, and contacts the valve body 1 when the valve plate 4 is closed, the protrusion portion 41 is in an arch shape, and the impact force of the medium is concentrated to the central position, so that the valve plate is opened and closed more rapidly. Further, the contact portion 42 is provided with a first sealing ring 5, and the valve body 1 is provided with a second sealing ring 6 corresponding to the contact portion 42, so that the abrasion of the contact portion 42 in contact with the valve body 1 is reduced, and the tightness of the contact end is improved.
Further, the two ends of the part of the valve shaft 2 positioned in the valve body 1 are fixed through screw plugs 22, an O-shaped ring 21 is arranged on the side, close to the outer side of the valve body, of the part, extending out of the valve shaft 2, of the valve body 1, and an opening of the valve is an outer leakage point of the valve, and the O-shaped ring 21 is arranged to improve the sealing performance of the valve body.
The examples should not be construed as limiting the utility model, and any non-inventive modifications based on the spirit of the utility model should be regarded as being within the scope of the utility model.
Claims (7)
1. The utility model provides a swing check valve with locking function, includes the valve body, be equipped with intake chamber, play water cavity, non return structure in the valve body, non return structure includes valve shaft, rocking arm, valve plate, rocking arm one end is rotated with the valve shaft and is connected, and the other end links to each other with the valve plate, the valve plate receives the medium impact of intake chamber end can rotate to open to drive the valve shaft and rotate, its characterized in that: one end of the valve shaft extends out of the valve body, the end part of the valve shaft extending out of the valve body is rotationally connected with a swinging mechanism, the swinging mechanism is linked with the valve shaft, and a locking mechanism for locking the swinging mechanism to enable the swinging mechanism to be unable to rotate is arranged between the swinging mechanism and the valve body.
2. A swing check valve with a dead lock function according to claim 1, wherein: the swinging mechanism comprises a connecting piece, a connecting rod and a heavy hammer, wherein the connecting piece is hinged with the valve shaft, one end of the connecting rod is connected with the connecting piece, and the other end of the connecting rod is connected with the heavy hammer.
3. A swing check valve with a dead lock function according to claim 2, wherein: the weight has a first position where the upper pendulum opens the valve plate and a second position where the lower pressure closes the valve plate.
4. A swing check valve with locking function according to claim 3, wherein: the locking mechanism comprises a bolt, a pin hole for inserting the bolt is formed in the connecting rod, and a locking hole is formed in the valve body at a second position corresponding to the heavy hammer.
5. A swing check valve with a dead lock function according to claim 1, wherein: the valve plate comprises a contact part and a bulge part, wherein the contact part is contacted with the valve body when the valve plate is closed, and the bulge part is in an arched bulge shape.
6. A swing check valve with a dead lock function according to claim 5, wherein: the contact part is provided with a first sealing ring, and the valve body is provided with a second sealing ring corresponding to the contact part.
7. A swing check valve with a dead lock function according to claim 1, wherein: the valve shaft is positioned in the valve body, two ends of the valve shaft are fixed through screw plugs, and O-shaped rings are arranged on the outer side of the valve shaft, which is close to the valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321459089.9U CN220151965U (en) | 2023-06-09 | 2023-06-09 | Swing check valve with locking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321459089.9U CN220151965U (en) | 2023-06-09 | 2023-06-09 | Swing check valve with locking function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220151965U true CN220151965U (en) | 2023-12-08 |
Family
ID=89012201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321459089.9U Active CN220151965U (en) | 2023-06-09 | 2023-06-09 | Swing check valve with locking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220151965U (en) |
-
2023
- 2023-06-09 CN CN202321459089.9U patent/CN220151965U/en active Active
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant |