CN215214899U - Butterfly type double-disc check valve with conveniently-detachable sealing ring - Google Patents
Butterfly type double-disc check valve with conveniently-detachable sealing ring Download PDFInfo
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- CN215214899U CN215214899U CN202121511337.0U CN202121511337U CN215214899U CN 215214899 U CN215214899 U CN 215214899U CN 202121511337 U CN202121511337 U CN 202121511337U CN 215214899 U CN215214899 U CN 215214899U
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Abstract
The utility model discloses a conveniently dismantle butterfly bivalve check valve of sealing washer, include: the valve comprises a valve body, a valve seat flange is fixed at one end of the valve body, and a connecting flange is connected at the other end of the valve body; a sealing rubber ring disposed on an inner side surface of the valve body; the threaded fixing ring is fixed at the upper end of the connecting flange; the screw hole penetrates through the valve seat flange and the connecting flange; and the first stud penetrates through the valve body, and a second stud penetrates through one side of the first stud. This conveniently dismantle butterfly bivalve check valve of sealing washer is provided with flange that sets up and carries out threaded connection through thread fixing ring and valve body, and the sealing rubber circle is installed in the groove of seting up on the valve body, makes rubber seal firm the placing in the valve body, fixes rubber seal with flange through thread fixing ring in the groove again, through rotatory extrusion, makes it can not drop, twists off flange when needing to dismantle the change and can take out the sealing rubber circle.
Description
Technical Field
The utility model relates to a check valve technical field specifically is a conveniently dismantle butterfly bivalve check valve of sealing washer.
Background
The function of a butterfly check valve is to allow the medium to flow in one direction only, but to prevent the opposite direction. Typically such valves are self-actuating, with the flap opening under the pressure of a fluid flowing in one direction; when the fluid flows in the opposite direction, the valve flap is combined by the fluid pressure and the self-weight of the valve flap to act on the valve seat, thereby cutting off the flow. Generally, the butterfly check valve needs to be connected with other pipelines during assembly, or the connecting flanges at two ends are connected with flanges of other pipelines, so that the pipelines need to be sealed by using sealing rings.
The butterfly type double-disc check valve on the market is not convenient for change and maintain the sealing washer in use, and the sealing washer takes place the seepage because of the material is ageing easily after using for a long time, and some difficult butterfly type check valves who change the sealing washer will make this butterfly type check valve maintain the difficulty, and the dismouting is troublesome, for this reason, we provide a butterfly type double-disc check valve who conveniently dismantles the sealing washer.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a conveniently dismantle butterfly bivalve check valve of sealing washer to solve the butterfly bivalve check valve in use on the market that proposes in the above-mentioned background art and be not convenient for change and maintain the sealing washer, the sealing washer takes place the seepage because of the material is ageing easily after long-time the use, and some butterfly check valves that are difficult for changing the sealing washer will make this butterfly check valve maintain the difficulty, the trouble problem of dismouting.
In order to achieve the above object, the utility model provides a following technical scheme: a butterfly bivalve check valve of sealing washer is conveniently dismantled, includes:
the valve comprises a valve body, a valve seat flange is fixed at one end of the valve body, and a connecting flange is connected at the other end of the valve body;
the strong magnetic ring is annularly arranged at the lower end of the inner side of the valve seat flange;
a sealing rubber ring disposed on an inner side surface of the valve body;
the threaded fixing ring is fixed at the upper end of the connecting flange;
the screw hole penetrates through the valve seat flange and the connecting flange;
the first stud penetrates through the valve body, and a second stud penetrates through one side of the first stud;
the first valve clack ring seat is sleeved at two ends of the first stud in a ring mode, and a first valve clack is fixed at one end of the first valve clack ring seat;
the second valve clack ring seat is sleeved outside the first stud in a sleeved mode, and a second valve clack is fixed at one end of the second valve clack ring seat;
and the magnetic block is embedded on one end surfaces of the first valve clack and the second valve clack close to the valve seat flange.
Preferably, threaded connection is adopted between the connecting flange and the valve body, the connecting flange and the valve seat flange are symmetrical about the central axis of the valve body, and the connecting flange forms a semi-surrounding structure through the space between the valve body and the sealing rubber ring.
Preferably, the first valve clack is in magnetic connection with the valve seat flange, the second valve clack is in magnetic connection with the valve seat flange, and the strong magnetic ring is matched with the inner diameter of the valve seat flange.
Preferably, the first valve flap forms a rotating structure with the first stud through the first valve flap ring seat, and forms a clamping structure with the second stud.
Preferably, the second valve flap forms a rotating structure with the first stud through a second valve flap ring seat, the second valve flap and the first valve flap are symmetrical about a central axis of the valve body, and the outline dimensions of the first valve flap and the second valve flap are matched.
Preferably, the first stud is further provided with:
the nut is fixed at the top end of the first stud, and a threaded column is arranged at the upper end of the first stud;
and the spring is sleeved in the middle of the first stud in a sleeving manner.
Preferably, the first stud is in threaded connection with the valve body, and the length of the threaded column is matched with the thickness of the valve body.
Compared with the prior art, the beneficial effects of the utility model are that: this conveniently dismantle butterfly bivalve check valve of sealing washer is provided with flange that sets up and carries out threaded connection through thread fixing ring and valve body, and the sealing rubber circle is installed in the groove of seting up on the valve body, makes rubber seal firm the placing in the valve body, fixes rubber seal with flange through thread fixing ring in the groove again, through rotatory extrusion, makes it can not drop, twists off flange when needing to dismantle the change and can take out the sealing rubber circle.
The strong magnetic ring and the magnetic block are arranged, so that the first valve clack, the second valve clack and the valve seat flange are in a tighter closed state, the closing speed is higher after water flow impact, the first valve clack and the second valve clack are prevented from being flushed again by small water flow, the damage of a water hammer effect to the check valve and the water pipe is reduced, and the multiple water hammer effect caused by subsequent multiple opening of the check valve due to back-and-forth impact of water flow is avoided; the first double-screw bolt and the second double-screw bolt that set up all can be unscrewed from the valve body through nut and screw post, are convenient for change and clear up, when the comparatively complicated condition of fluid physique, can regularly dismantle the clearance to this check valve, prevent that the corrosion of internal element from leading to the check valve to damage, and the second double-screw bolt can prevent that first valve clack and second valve clack open angle from leading to the excessive deformation of spring and damaging.
The first valve clack and the second valve clack rotate on the first stud through the spring, when fluid flows, the second stud controls the opening and closing degree of the first valve clack and the second valve clack to prevent the spring from excessively deforming, and when the fluid stops flowing, the first valve clack and the second valve clack are attached to the valve seat flange again under the action of the elastic force of the spring to close the check valve; when fluid flows from the connecting flange to the valve seat flange, water flow impacts the surfaces of the first valve clack and the second valve clack close to one end of the connecting flange, the first valve clack and the second valve clack are tightly attached to the valve seat flange under the action of spring elasticity, the fluid cannot continuously flow, and the fluid in the pipeline can only flow in a single direction.
Drawings
FIG. 1 is a schematic view of the front perspective structure of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic side sectional view of the structure of the present invention;
FIG. 4 is a schematic top sectional view of the present invention;
FIG. 5 is an enlarged schematic view of the valve flap of the present invention;
fig. 6 is a schematic perspective view of the first stud portion of the present invention.
In the figure: 1. a valve body; 2. a valve seat flange; 3. a connecting flange; 4. a screw hole; 5. a first stud; 6. a second stud; 7. a nut; 8. a threaded post; 9. a spring; 10. a first valve flap ring seat; 11. a second valve flap ring seat; 12. a threaded retainer ring; 13. sealing the rubber ring; 14. a first valve flap; 15. a second valve flap; 16. a strong magnetic ring; 17. a magnetic block.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a butterfly bivalve check valve of sealing washer is conveniently dismantled, includes: the valve comprises a valve body 1, wherein a valve seat flange 2 is fixed at one end of the valve body 1, and a connecting flange 3 is connected at the other end of the valve body 1; a sealing rubber ring 13 disposed on the inner side surface of the valve body 1; a screw fixing ring 12 fixed to an upper end of the connection flange 3; the connecting flange 3 is in threaded connection with the valve body 1, the connecting flange 3 and the valve seat flange 2 are symmetrical about the central axis of the valve body 1, and the connecting flange 3 forms a semi-surrounding structure through the space between the valve body 1 and the sealing rubber ring 13; the connecting flange 3 is in threaded connection with the valve body 1 through a threaded fixing ring 12, a sealing rubber ring 13 is arranged in a groove formed in the valve body 1, the rubber sealing ring is stably placed in the valve body 1, the connecting flange 3 is fixed in the groove through the threaded fixing ring 12, the rubber sealing ring cannot fall off through rotary extrusion, and the sealing rubber ring 13 can be taken out by unscrewing the connecting flange 3 when the connecting flange is required to be disassembled and replaced; a screw hole 4 penetrating the valve seat flange 2 and the connecting flange 3; and a first stud 5 penetrating the valve body 1, and a second stud 6 penetrating one side of the first stud 5.
Referring to fig. 4-5, a butterfly-type double-disc check valve with a conveniently detachable sealing ring comprises: the first valve clack ring seat 10 is sleeved at two ends of the first stud 5 in a ring mode, and a first valve clack 14 is fixed at one end of the first valve clack ring seat 10; the first valve clack 14 forms a rotating structure with the first stud 5 through the first valve clack ring seat 10, and a clamping structure is formed between the first valve clack 14 and the second stud 6; the first valve clack 14 and the second valve clack 15 are arranged to rotate on the first stud 5 through the spring 9, when fluid flows, the second stud 6 controls the opening and closing degree of the first valve clack 14 and the second valve clack 15, the spring 9 is prevented from being excessively deformed, and when the fluid stops flowing, the first valve clack 14 and the second valve clack 15 are attached to the valve seat flange 2 again under the action of the elastic force of the spring 9, so that the check valve is closed; a second valve clack ring seat 11 which is sleeved outside the first stud 5, and a second valve clack 15 is fixed at one end of the second valve clack ring seat 11; the second valve flap 15 forms a rotating structure through the second valve flap ring seat 11 and the first stud 5, the second valve flap 15 and the first valve flap 14 are symmetrical about the central axis of the valve body 1, and the external dimensions of the first valve flap 14 and the second valve flap 15 are matched; when fluid flows from the connecting flange 3 to the valve seat flange 2, the second valve flap 15 and the first valve flap 14 impact the surfaces of the first valve flap 14 and the second valve flap 15 close to one end of the connecting flange 3, the first valve flap 14 and the second valve flap 15 are tightly attached to the valve seat flange 2 under the action of the elastic force of the spring 9, the fluid cannot continuously flow, and the fluid in a pipeline can only flow in one direction; the strong magnetic ring 16 is arranged at the lower end of the inner side of the valve seat flange 2 in a surrounding manner; a magnetic block 17 which is embedded on one end surfaces of the first valve clack 14 and the second valve clack 15 close to the valve seat flange 2; the strong magnetic ring 16 and the magnetic block 17 that set up make between first valve clack 14 and second valve clack 15 and the valve seat flange 2 closed state inseparabler, and closing speed is faster after the rivers impact, prevents that the trickle from rushing first valve clack 14 and second valve clack 15 open once more, reduces the damage of water hammer effect to check valve and water pipe, avoids the check valve because of rivers impact the follow-up many times that leads to and open the many times water hammer effect that causes that make a round trip.
Referring to fig. 6, a butterfly-type double-disc check valve convenient for disassembling a sealing ring includes: the nut 7 is fixed at the top end of the first stud 5, and a threaded column 8 is arranged at the upper end of the first stud 5; the spring 9 is sleeved in the middle of the first stud 5 in a sleeved mode; the first stud 5 is in threaded connection with the valve body 1, and the length of the threaded column 8 is matched with the thickness of the valve body 1; first double-screw bolt 5 and the second double-screw bolt 6 of setting all can be unscrewed from valve body 1 through nut 7 and screw post 8, are convenient for change and clear up, when the comparatively complicated condition of fluid physique, can regularly dismantle the clearance to this check valve, prevent that the corrosion of internal component from leading to the check valve to damage, and second double-screw bolt 6 can prevent that first valve clack 14 and 15 open angle are too big to lead to the excessive deformation of spring 9 and damage.
The working principle is as follows: for the butterfly type double-flap check valve with the sealing ring convenient to detach, firstly, the sealing rubber ring 13 is arranged in a groove arranged on the valve body 1, so that the rubber sealing ring is stably placed in the valve body 1, then, the connecting flange 3 is fixed in the groove through the thread fixing ring 12, the rubber sealing ring is prevented from falling off through rotary extrusion, then, a pipeline is connected with the valve seat flange 2 and the connecting flange 3 through the screw holes 4 by bolts and the like, so that the pipeline is communicated with the valve body 1, then, a fluid switch is opened, so that fluid flows in the pipeline, when the fluid flows through the valve body 1, whether the valve body 1 is opened or not is judged according to the flowing direction of the fluid, when the fluid flows from one end of the valve seat flange 2 to the end of the connecting flange 3, the fluid impacts the first flap 14 and the second flap 15 to extrude the spring 9, so that the first flap 14 rotates around the first stud 5 through the first flap ring seat 10, the second valve clack 15 rotates around the first stud 5 through the second valve clack ring seat 11, at the moment, a channel is formed between the valve body 1 and a pipeline, fluid continuously flows, when the fluid flows to the end of the valve seat flange 2 from one end of the connecting flange 3, the fluid impacts the first valve clack 14 and the second valve clack 15, the first valve clack 14 and the second valve clack 15 are attached to the surface of the valve seat flange 2, the fluid cannot flow out of the valve body 1 to form a closed circuit, and finally the first stud 5 and the second stud 6 can be screwed out of the valve body 1 through the nut 7 and the threaded column 8, so that the first stud 5 or the second stud 6 can be maintained and replaced conveniently, the working state of the valve body 1 is kept well, and leakage is avoided.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a conveniently dismantle butterfly bivalve check valve of sealing washer which characterized in that includes:
the valve comprises a valve body (1), wherein a valve seat flange (2) is fixed at one end of the valve body (1), and a connecting flange (3) is connected at the other end of the valve body (1);
the strong magnetic ring (16) is annularly arranged at the lower end of the inner side of the valve seat flange (2);
a sealing rubber ring (13) disposed on an inner side surface of the valve body (1);
a threaded fixing ring (12) fixed to the upper end of the connecting flange (3);
a screw hole (4) which penetrates through the valve seat flange (2) and the connecting flange (3);
a first stud (5) penetrating inside the valve body (1), wherein a second stud (6) penetrates through one side of the first stud (5);
the first valve clack ring seat (10) is sleeved at two ends of the first stud (5) in a sleeved mode, and a first valve clack (14) is fixed at one end of the first valve clack ring seat (10);
the second valve clack ring seat (11) is sleeved outside the first stud (5) in a sleeved mode, and a second valve clack (15) is fixed at one end of the second valve clack ring seat (11);
and the magnetic block (17) is embedded on one end surface of the first valve clack (14) and the second valve clack (15) close to the valve seat flange (2).
2. The butterfly-type double-disc check valve with the seal ring convenient to disassemble as claimed in claim 1, wherein: threaded connection is adopted between the connecting flange (3) and the valve body (1), the connecting flange (3) and the valve seat flange (2) are symmetrical about the central axis of the valve body (1), and the connecting flange (3) forms a semi-surrounding structure between the valve body (1) and the sealing rubber ring (13).
3. The butterfly-type double-disc check valve with the seal ring convenient to disassemble as claimed in claim 1, wherein: the first valve clack (14) and the valve seat flange (2) form magnetic connection, the second valve clack (15) and the valve seat flange (2) form magnetic connection, and the strong magnetic ring (16) is matched with the inner diameter of the valve seat flange (2).
4. The butterfly-type double-disc check valve with the seal ring convenient to disassemble as claimed in claim 1, wherein: the first valve clack (14) forms a rotating structure through the first valve clack ring seat (10) and the first stud (5), and a clamping structure is formed between the first valve clack (14) and the second stud (6).
5. The butterfly-type double-disc check valve with the seal ring convenient to disassemble as claimed in claim 1, wherein: the second valve clack (15) forms a rotating structure through the second valve clack ring seat (11) and the first stud (5), the second valve clack (15) and the first valve clack (14) are symmetrical about the central axis of the valve body (1), and the outline dimensions of the first valve clack (14) and the second valve clack (15) are matched.
6. The butterfly-type double-disc check valve with the seal ring convenient to disassemble as claimed in claim 1, wherein: the first stud (5) is further provided with:
the nut (7) is fixed at the top end of the first stud (5), and a threaded column (8) is arranged at the upper end of the first stud (5);
and the spring (9) is sleeved in the middle of the first stud (5).
7. The butterfly-type double-disc check valve convenient for disassembling the sealing ring of claim 6, wherein: the first stud (5) is in threaded connection with the valve body (1), and the length of the threaded column (8) is matched with the thickness of the valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121511337.0U CN215214899U (en) | 2021-07-05 | 2021-07-05 | Butterfly type double-disc check valve with conveniently-detachable sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121511337.0U CN215214899U (en) | 2021-07-05 | 2021-07-05 | Butterfly type double-disc check valve with conveniently-detachable sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215214899U true CN215214899U (en) | 2021-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121511337.0U Active CN215214899U (en) | 2021-07-05 | 2021-07-05 | Butterfly type double-disc check valve with conveniently-detachable sealing ring |
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| CN (1) | CN215214899U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114776852A (en) * | 2022-05-10 | 2022-07-22 | 河北础润节水灌溉科技有限公司 | Integrated butterfly valve with reinforcing structure |
-
2021
- 2021-07-05 CN CN202121511337.0U patent/CN215214899U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114776852A (en) * | 2022-05-10 | 2022-07-22 | 河北础润节水灌溉科技有限公司 | Integrated butterfly valve with reinforcing structure |
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