CN212959903U - Fire-fighting signal butterfly valve capable of improving sealing performance - Google Patents
Fire-fighting signal butterfly valve capable of improving sealing performance Download PDFInfo
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- CN212959903U CN212959903U CN202021828437.1U CN202021828437U CN212959903U CN 212959903 U CN212959903 U CN 212959903U CN 202021828437 U CN202021828437 U CN 202021828437U CN 212959903 U CN212959903 U CN 212959903U
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Abstract
The utility model relates to a fire-fighting signal butterfly valve for improving sealing performance, which comprises a driving device and a butterfly valve body, wherein the driving device is fixedly arranged at the upper end of the butterfly valve body; and is fixedly connected with the butterfly valve body; the butterfly valve body comprises a valve body, a driving valve shaft, a butterfly plate and a driven valve shaft, the butterfly plate is arranged in the valve body, the driving valve shaft is arranged in the valve body, and the driving valve shaft extends out of the valve body and is connected with a driving device; the driving valve shaft is connected with the butterfly plate; the driven valve shaft is arranged in the valve body and connected with the butterfly plate; the butterfly plate is provided with a limiting table, and a first sealing ring is sleeved in the limiting table; the butterfly plate is provided with a pressing plate, and the pressing plate is connected with the butterfly plate; a positioning groove is formed in the valve body, and the first sealing ring is embedded into the positioning groove; the pressing plate is provided with a plurality of diversion trenches. Compared with the prior art, the utility model discloses utilize the guiding gutter to change the flow direction of part rivers, can effectively reduce rivers to the impact effort of first sealing washer, can delay first sealing washer and produce off normal or warp increase of service life.
Description
Technical Field
The utility model relates to a fire control technical field, particularly, in particular to promote fire control signal butterfly valve of leakproofness.
Background
Fire safety becomes indispensable content in social safety, fire fighting equipment becomes a vital part for timely alarming and extinguishing fire, and a signal butterfly valve plays an indispensable role in normal operation of the fire fighting equipment; however, the existing fire-fighting signal butterfly valve has many defects, the sealing ring is easy to be impacted by water flow, is easy to deviate or deform, and has short service life;
in the prior art, for example, a durable fire butterfly valve with application number 201921666106.X includes a driving end, a quantitative maintenance device, and a fire butterfly valve body, wherein the driving end is arranged at the upper end of the fire butterfly valve body, and the quantitative maintenance device is arranged on the outer wall of the driving end;
the quantitative maintenance device comprises a device shell, a maintenance liquid tank, a pressing block, a positioning frame, an internal thread block, a limiting screw rod, a first linkage plate, a hinge plate, a second linkage plate, a plug and an input pipeline, wherein the maintenance liquid tank is arranged at the top end inside the device shell, the positioning frame is fixedly arranged on the inner wall of the left part of the device shell, one end of the pressing block is embedded inside the positioning frame and is connected with the pressing block in a sliding mode, the other end of the pressing block penetrates through the device shell, the internal thread block is arranged at the bottom end inside the device shell, the limiting screw rod is in threaded connection with the internal thread block, one end of the limiting screw rod is embedded into the positioning frame to limit the pressing block, the other end of the limiting screw rod is provided with a turntable, the first linkage plate is arranged at the right end of the pressing block, a fixed shaft is arranged in the middle of the hinge, the input pipeline is fixedly installed at the right lower end of the maintenance liquid tank, the plug is arranged on the input pipeline and is connected in a movable mode, one end of the plug is of a conical sealing structure and plays a role in sealing the input pipeline, and the other end of the plug is connected with the second linkage plate.
According to the above description, the prior art is lack of effective protection on the structure of the sealing ring, when the fire-fighting butterfly valve is used, the fire-fighting butterfly valve is opened, and when water flows through the fire-fighting butterfly valve, impact is generated on the sealing ring on the butterfly plate, so that the butterfly plate is easy to deviate or deform, and the service life is short; it is necessary to solve these problems.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the above-mentioned technical problem among the prior art to a certain extent at least. Therefore, an object of the utility model is to provide a change the flow direction of part rivers, increase of service life's fire control signal butterfly valve of promotion leakproofness.
The utility model provides an above-mentioned technical problem's technical scheme as follows: the fire-fighting signal butterfly valve for improving the sealing performance comprises a driving device and a butterfly valve body, wherein the driving device is fixedly arranged at the upper end of the butterfly valve body; and is fixedly connected with the butterfly valve body;
the butterfly valve comprises a butterfly valve body, a driving valve shaft, a butterfly plate and a driven valve shaft, wherein the butterfly plate is rotatably arranged in a channel of the valve body, the driving valve shaft is rotatably arranged in the upper end part of the valve body, and the upper end part of the driving valve shaft extends out of the valve body and is connected with a driving device; the lower end part of the driving valve shaft extends downwards and is fixedly connected with the butterfly plate; the driven valve shaft is rotatably arranged in the lower end part of the valve body, and the upper end part of the driven valve shaft extends upwards and is fixedly connected with the butterfly plate;
the butterfly plate is provided with an annular limiting table along the edge of the butterfly plate, and a first sealing ring is sleeved in the limiting table; an annular pressing plate is arranged on the butterfly plate corresponding to the limiting table, and the pressing plate is detachably connected with the butterfly plate; the pressing plate presses the first sealing ring in the limiting table; an annular positioning groove is formed in the inner wall of the channel of the valve body corresponding to the first sealing ring, the positioning groove surrounds the first sealing ring, and the outer circle edge of the first sealing ring is embedded into the positioning groove;
the plate surface of the pressing plate, which is far away from the first sealing ring, is provided with a plurality of flow guide grooves, the flow guide grooves are arranged along the pressing plate in sequence, and the distance between every two adjacent flow guide grooves is consistent.
The utility model has the advantages that: partial water flow enters the diversion trench, and under the guiding action of the diversion trench, the flow direction of the partial water flow is changed, so that the water flow flowing through the first sealing ring and close to the outer circular ring-shaped end part of the first sealing ring is impacted, the impact of the water flow on the first sealing ring and close to the outer circular ring-shaped end part of the first sealing ring can be effectively reduced, the deviation or deformation of the first sealing ring can be delayed, and the service life is prolonged.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Furthermore, a first limiting hole is formed in the valve body corresponding to the driving valve shaft, and the middle of the driving valve shaft is arranged in the first limiting hole; the upper end part of the driving valve shaft extends upwards out of the first limiting hole and is connected with the output end of the driving device; the middle part of the driving valve shaft is sleeved with a shaft sleeve, and the driving valve shaft is rotatably connected with the inner wall of the valve body through the shaft sleeve; the upper end of the valve body is provided with a packing gland which is sleeved on the driving valve shaft and is fixedly connected with the valve body; the first limiting hole is further provided with a packing, and the packing is located between the packing gland and the shaft sleeve.
The beneficial effect of adopting the further scheme is that: utilize the filler to seal between initiative valve shaft and the first spacing hole, neither influence the initiative valve shaft and rotate, can also promote the leakproofness.
Further, the filler is flexible graphite woven filler.
The beneficial effect of adopting the further scheme is that: the flexible graphite woven packing can improve the sealing performance of the packing and can adapt to high-temperature, high-pressure and corrosion-resistant application environments.
Furthermore, a second limit hole is formed in the position, corresponding to the driven valve shaft, of the valve body, a shaft end gland is arranged at the lower end of the valve body, and the shaft end gland covers the second limit hole and is fixedly connected with the lower end of the valve body; the lower end part of the driven valve shaft extends downwards into the second limiting hole and pushes against the shaft end gland; the lower end cover of driven valve shaft is equipped with and keeps off the ring, the periphery that keeps off the ring is provided with the second sealing washer, the axle head gland compresses tightly keep off ring and second sealing washer are in on the lower terminal surface of valve body.
The beneficial effect of adopting the further scheme is that: the second sealing ring can improve the sealing property between the valve body and the shaft end gland; the stop ring enables the driven valve shaft to rotate in a limiting mode, and the service life is prolonged.
Further, a friction pad is arranged between the lower end part of the driven valve shaft and the shaft end gland; the friction pad is respectively connected with the lower end face of the driven valve shaft and the shaft end gland.
The beneficial effect of adopting the further scheme is that: the friction pad can increase the friction force after the driven valve shaft rotates in place, thereby realizing the positioning of the driven valve shaft and enabling the rotation angle of the butterfly plate to be more accurate.
Drawings
FIG. 1 is a front view of the fire-fighting signal butterfly valve for improving the sealing performance of the present invention;
FIG. 2 is a top view of the fire-fighting signal butterfly valve of the present invention for improving the sealing performance;
FIG. 3 is a schematic structural view of the fire-fighting signal butterfly valve for improving the sealing performance of the present invention;
FIG. 4 is an enlarged schematic view of FIG. 3 at A;
fig. 5 is an enlarged schematic view of fig. 3 at B.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a signal control box;
2. the butterfly valve comprises a butterfly valve body, 2.1, a valve body, 2.2, a driving valve shaft, 2.3, a butterfly plate, 2.4, a driven valve shaft, 2.5, a limiting table, 2.6, a first sealing ring, 2.7, a pressing plate, 2.8, a positioning groove, 2.9, a flow guide groove, 2.10, a shaft sleeve, 2.11, a packing gland, 2.12, packing, 2.13, a shaft end gland, 2.14, a baffle ring, 2.15, a second sealing ring, 2.16 and a friction pad.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1 to 5, the fire-fighting signal butterfly valve for improving the sealing performance comprises a driving device 1 and a butterfly valve body 2, wherein the driving device 1 is fixedly arranged at the upper end of the butterfly valve body 2; and is fixedly connected with the butterfly valve body 2;
the butterfly valve body 2 comprises a valve body 2.1, a driving valve shaft 2.2, a butterfly plate 2.3 and a driven valve shaft 2.4, the butterfly plate 2.3 is rotatably arranged in a channel of the valve body 2.1, the driving valve shaft 2.2 is rotatably arranged in the upper end part of the valve body 2.1, and the upper end part of the driving valve shaft 2.2 extends out of the valve body 2.1 to be connected with the driving device 1; the lower end part of the driving valve shaft 2.2 extends downwards and is fixedly connected with the butterfly plate 2.3; the driven valve shaft 2.4 is rotatably arranged in the lower end part of the valve body 2.1, and the upper end part of the driven valve shaft 2.4 extends upwards and is fixedly connected with the butterfly plate 2.3;
the butterfly plate 2.3 is provided with an annular limiting table 2.5 along the edge thereof, and a first sealing ring 2.6 is sleeved in the limiting table 2.5; an annular pressing plate 2.7 is arranged on the butterfly plate 2.3 corresponding to the limiting table 2.5, and the pressing plate 2.7 is detachably connected with the butterfly plate 2.3; the pressure plate 2.7 compresses the first sealing ring 2.6 in the limiting table 2.5; an annular positioning groove 2.8 is formed in the position, corresponding to the first sealing ring 2.6, of the inner wall of the channel of the valve body 2.1, the positioning groove 2.8 surrounds the first sealing ring 2.6, and the outer circle edge of the first sealing ring 2.6 is embedded into the positioning groove 2.8;
the plate surface of the pressing plate 2.7, which is far away from the first sealing ring 2.6, is provided with a plurality of flow guide grooves 2.9, the flow guide grooves 2.9 are sequentially arranged along the annular edge of the pressing plate 2.7, and the distance between every two adjacent flow guide grooves 2.9 is consistent.
The driving device 1 drives the butterfly valve body 2 to open or close; the driving device 1 drives the driving valve shaft 2.2 to rotate, and the driving valve shaft 2.2 drives the butterfly plate 2.3 and the driven valve shaft 2.4 to rotate in the valve body 2.1, so that the butterfly plate 2.3 opens or closes a channel of the valve body 2.1;
the annular end part of the first sealing ring 2.6 close to the inner circle of the first sealing ring is tightly pressed in the limiting table 2.5 through the pressing plate 2.7, the annular end part of the first sealing ring 2.6 close to the outer circle of the first sealing ring is embedded into the positioning groove 2.8, so that the first sealing ring 2.6 is fixed, and the first sealing ring 2.6 is matched with the butterfly plate 2.3 to seal the channel of the valve body 2.1;
when the butterfly plate 2.3 rotates, the butterfly plate 2.3 opens the channel of the valve body 2.1, and when water flows through the channel of the valve body 2.1, the water flows to wash the annular end part of the first sealing ring 2.6 close to the excircle of the first sealing ring; part rivers get into guiding gutter 2.9, and under the guiding action of guiding gutter 2.9, part rivers change the flow direction, and the rivers that flow through first sealing washer 2.6 and are close to its outer ring shape tip produce the impact, can effectively reduce rivers to the impact that first sealing washer 2.6 is close to its outer ring shape tip, can delay first sealing washer 2.6 and produce the off normal or warp, promote the leakproofness, increase of service life.
In the above embodiment, a first limit hole is formed in the valve body 2.1 corresponding to the driving valve shaft 2.2, and the middle of the driving valve shaft 2.2 is disposed in the first limit hole; the upper end part of the driving valve shaft 2.2 extends upwards out of the first limit hole and is connected with the output end of the driving device 1; the middle part of the driving valve shaft 2.2 is sleeved with a shaft sleeve 2.10, and the driving valve shaft 2.2 is rotatably connected with the inner wall of the valve body 2.1 through the shaft sleeve 2.10; a packing gland 2.11 is arranged at the upper end of the valve body 2.1, and the packing gland 2.11 is sleeved on the driving valve shaft 2.2 and is fixedly connected with the valve body 2.1; the first limiting hole is further provided with a packing 2.12, and the packing 2.12 is located between the packing gland 2.11 and the shaft sleeve 2.10.
The driving device 1 drives the driving valve shaft 2.2 to rotate in the first limit hole, and the shaft sleeve 2.10 can reduce the friction force of the driving valve shaft 2.2 in the rotating process; the packing gland 2.11 covers the packing 2.12, so that the packing 2.12 is positioned between the packing gland 2.11 and the shaft sleeve 2.10; utilize packing 2.12 to seal between initiative valve shaft 2.2 and the first spacing hole, neither influence initiative valve shaft 2.2 and rotate, can also promote the leakproofness.
In the above embodiment, the filler 2.12 is a flexible graphite woven filler.
The flexible graphite woven packing can improve the sealing performance of the packing 2.12 and can adapt to the application environment of high temperature, high pressure and corrosion resistance.
In the above embodiment, a second limit hole is formed in the valve body 2.1 corresponding to the driven valve shaft 2.4, a shaft end gland 2.13 is arranged at the lower end of the valve body 2.1, and the shaft end gland 2.13 covers the second limit hole and is fixedly connected with the lower end of the valve body 2.1; the lower end part of the driven valve shaft 2.4 extends downwards into the second limiting hole and pushes against the shaft end gland 2.13; the lower end part of the driven valve shaft 2.4 is sleeved with a baffle ring 2.14, the periphery of the baffle ring 2.14 is provided with a second sealing ring 2.15, and the shaft end gland 2.13 compresses the baffle ring 2.14 and the second sealing ring 2.15 on the lower end face of the valve body 2.1.
The second sealing ring 2.15 can improve the sealing performance between the valve body 2.1 and the shaft end gland 2.13; the stop ring 2.14 enables the driven valve shaft 2.4 to rotate in a limiting mode, and the service life is prolonged.
In the above embodiment, a friction pad 2.16 is arranged between the lower end of the driven valve shaft 2.4 and the shaft end gland 2.13; the friction pads 2.16 are respectively connected with the lower end face of the driven valve shaft 2.4 and the shaft end gland 2.13.
The friction pad 2.16 can increase the friction force after the driven valve shaft 2.4 rotates in place, thereby realizing the positioning of the driven valve shaft 2.4 and enabling the rotation angle of the butterfly plate 2.3 to be more accurate.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (5)
1. The fire-fighting signal butterfly valve capable of improving the sealing performance comprises a driving device (1) and a butterfly valve body (2), wherein the driving device (1) is fixedly arranged at the upper end of the butterfly valve body (2); and is fixedly connected with the butterfly valve body (2); the method is characterized in that:
the butterfly valve body (2) comprises a valve body (2.1), a driving valve shaft (2.2), a butterfly plate (2.3) and a driven valve shaft (2.4), the butterfly plate (2.3) is rotatably arranged in a channel of the valve body (2.1), the driving valve shaft (2.2) is rotatably arranged in the upper end part of the valve body (2.1), and the upper end part of the driving valve shaft (2.2) extends out of the valve body (2.1) to be connected with the driving device (1); the lower end part of the driving valve shaft (2.2) extends downwards and is fixedly connected with the butterfly plate (2.3); the driven valve shaft (2.4) is rotatably arranged in the lower end part of the valve body (2.1), and the upper end part of the driven valve shaft (2.4) extends upwards and is fixedly connected with the butterfly plate (2.3);
an annular limiting table (2.5) is arranged along the edge of the butterfly plate (2.3), and a first sealing ring (2.6) is sleeved in the limiting table (2.5); an annular pressing plate (2.7) is arranged on the butterfly plate (2.3) corresponding to the limiting table (2.5), and the pressing plate (2.7) is detachably connected with the butterfly plate (2.3); the pressure plate (2.7) compresses the first sealing ring (2.6) in the limiting table (2.5); an annular positioning groove (2.8) is formed in the position, corresponding to the first sealing ring (2.6), of the inner wall of the channel of the valve body (2.1), the positioning groove (2.8) surrounds the first sealing ring (2.6), and the edge of the outer circle of the first sealing ring (2.6) is embedded into the positioning groove (2.8);
the plate surface of the pressing plate (2.7) far away from the first sealing ring (2.6) is provided with a plurality of guide grooves (2.9), the guide grooves (2.9) are arranged in sequence along the pressing plate (2.7), and the distance between every two adjacent guide grooves (2.9) is consistent.
2. A fire protection signal butterfly valve with improved sealing capability as defined in claim 1, wherein: a first limiting hole is formed in the position, corresponding to the driving valve shaft (2.2), of the valve body (2.1), and the middle of the driving valve shaft (2.2) is arranged in the first limiting hole; the upper end part of the driving valve shaft (2.2) extends upwards out of the first limiting hole and is connected with the output end of the driving device (1); the middle part of the driving valve shaft (2.2) is sleeved with a shaft sleeve (2.10), and the driving valve shaft (2.2) is rotatably connected with the inner wall of the valve body (2.1) through the shaft sleeve (2.10); a packing gland (2.11) is arranged at the upper end of the valve body (2.1), and the packing gland (2.11) is sleeved on the driving valve shaft (2.2) and is fixedly connected with the valve body (2.1); the first limiting hole is further provided with a packing (2.12), and the packing (2.12) is located between the packing gland (2.11) and the shaft sleeve (2.10).
3. A fire protection signal butterfly valve with improved sealing according to claim 2, wherein: the filler (2.12) is flexible graphite woven filler.
4. A fire protection signal butterfly valve with improved sealing capability as defined in claim 1, wherein: a second limiting hole is formed in the position, corresponding to the driven valve shaft (2.4), of the valve body (2.1), a shaft end gland (2.13) is arranged at the lower end of the valve body (2.1), and the shaft end gland (2.13) covers the second limiting hole and is fixedly connected with the lower end of the valve body (2.1); the lower end part of the driven valve shaft (2.4) extends downwards into the second limiting hole and pushes against the shaft end gland (2.13); the lower tip cover of driven valve axle (2.4) is equipped with and is kept off ring (2.14), the periphery that keeps off ring (2.14) is provided with second sealing washer (2.15), axle head gland (2.13) compress tightly keep off ring (2.14) and second sealing washer (2.15) are in on the lower terminal surface of valve body (2.1).
5. A fire signal butterfly valve with improved sealing according to claim 4, wherein: a friction pad (2.16) is arranged between the lower end part of the driven valve shaft (2.4) and the shaft end gland (2.13); the friction pad (2.16) is respectively connected with the lower end face of the driven valve shaft (2.4) and the shaft end gland (2.13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021828437.1U CN212959903U (en) | 2020-08-27 | 2020-08-27 | Fire-fighting signal butterfly valve capable of improving sealing performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021828437.1U CN212959903U (en) | 2020-08-27 | 2020-08-27 | Fire-fighting signal butterfly valve capable of improving sealing performance |
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| Publication Number | Publication Date |
|---|---|
| CN212959903U true CN212959903U (en) | 2021-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021828437.1U Active CN212959903U (en) | 2020-08-27 | 2020-08-27 | Fire-fighting signal butterfly valve capable of improving sealing performance |
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| CN (1) | CN212959903U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114233877A (en) * | 2021-12-21 | 2022-03-25 | 宁波一机阀门制造有限公司 | Suspension type self-pressing metal sealing butterfly valve |
-
2020
- 2020-08-27 CN CN202021828437.1U patent/CN212959903U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114233877A (en) * | 2021-12-21 | 2022-03-25 | 宁波一机阀门制造有限公司 | Suspension type self-pressing metal sealing butterfly valve |
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