CN113775800B - Valve body structure for fire control - Google Patents
Valve body structure for fire control Download PDFInfo
- Publication number
- CN113775800B CN113775800B CN202111162070.3A CN202111162070A CN113775800B CN 113775800 B CN113775800 B CN 113775800B CN 202111162070 A CN202111162070 A CN 202111162070A CN 113775800 B CN113775800 B CN 113775800B
- Authority
- CN
- China
- Prior art keywords
- plate
- sealing
- valve casing
- valve
- body structure
- 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 abstract description 77
- 230000006835 compression Effects 0.000 claims abstract description 13
- 238000007906 compression Methods 0.000 claims abstract description 13
- 239000012530 fluid Substances 0.000 claims abstract description 7
- 230000000694 effects Effects 0.000 claims abstract description 6
- 238000003825 pressing Methods 0.000 claims description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000003466 welding Methods 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 description 6
- 239000004576 sand Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0413—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded in the form of closure plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/48—Attaching valve members to screw-spindles
- F16K1/487—Attaching valve members to screw-spindles by a fixing element extending in the axial direction of the spindle, e.g. a screw
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/042—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with locking or disconnecting arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/06—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for adjusting the opening pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/168—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side combined with manually-controlled valves, e.g. a valve combined with a safety valve
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention discloses a valve body structure for fire control, which comprises an upper valve shell, a middle valve shell, a lower valve shell and a valve core; an upper supporting plate is arranged in the upper valve casing, a middle supporting plate is arranged in the middle valve casing, and a sealing plate is arranged in the lower valve casing; the valve core comprises a conical fluted disc, a movable adjusting plate and a sealing backing plate, and holes for fluid to pass through are formed in the movable adjusting plate, the upper supporting plate, the middle supporting plate and the sealing plate; a spring is arranged between the movable adjusting plate and the sealing backing plate, the upper supporting plate is matched with the middle supporting plate to mount and position the bevel gear, and the sealing backing plate is pressed on the sealing plate under the action of the spring to realize sealing and stopping effects; the bevel disk is rotated to change the spacing between the moving adjustment plate and the seal backing plate, thereby changing the initial compression of the spring. The invention discloses a valve body structure for fire control, which can adjust the opening pressure according to the actual working condition, thereby realizing the purpose of multiple purposes of one valve; and has a normally open function, thereby meeting more use scenes.
Description
Technical Field
The invention relates to the technical field of fire-fighting equipment, in particular to a valve body structure for fire protection.
Background
The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The control component in the fluid conveying system has the functions of stopping, adjusting, guiding, preventing countercurrent, stabilizing pressure, shunting or overflow pressure relief and the like. Valves for fluid control systems range from the simplest shut-off valves to the various valves used in extremely complex automatic control systems, which are quite diverse in variety and specification.
The control of the valve can adopt various transmission modes, such as manual operation, electric operation, hydraulic operation, pneumatic operation, turbine operation, electromagnetic hydraulic operation, electro-hydraulic operation, pneumatic operation, spur gear, bevel gear drive and the like; the valve can be operated according to preset requirements under the action of pressure, temperature or other forms of sensing signals, or can be simply opened or closed without depending on the sensing signals, and the valve can enable the opening and closing piece to do lifting, sliding, swinging or rotating movement by depending on a driving or automatic mechanism, so that the size of the flow passage area of the valve is changed to realize the control function of the valve.
Most valves in the market at present have determined opening pressure when leaving the factory and cannot be adjusted, so that a purchaser needs to purchase according to actual demands. However, in some special cases, the opening pressure needs to be changed, so that the existing valves on the market cannot meet the requirements.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a valve body structure for fire control, which can adjust the opening pressure according to the actual working condition and realize the purpose of one valve for multiple purposes; and has a normally open function, thereby meeting more use scenes.
In order to solve the technical problems, the invention is solved by the following technical scheme: the valve body structure for fire control comprises an upper valve shell, a middle valve shell, a lower valve shell and a valve core; an upper supporting plate is arranged in the upper valve casing, a middle supporting plate is arranged in the middle valve casing, and a sealing plate is arranged in the lower valve casing; the valve core comprises a conical fluted disc, a movable adjusting plate and a sealing backing plate, and holes for fluid to pass through are formed in the movable adjusting plate, the upper supporting plate, the middle supporting plate and the sealing plate; a spring is arranged between the movable adjusting plate and the sealing backing plate, the upper supporting plate is matched with the middle supporting plate to mount and position the bevel gear disc, and the sealing backing plate is pressed on the sealing plate under the action of the spring to realize sealing and stopping actions; the bevel disk is rotated to change the spacing between the moving adjustment plate and the seal backing plate, thereby changing the initial compression of the spring.
In the above technical scheme, preferably, the upper support plate is provided with a fastening cylinder, a bearing groove is formed in the bottom of the fastening cylinder and the middle support plate, a pressure bearing is arranged in the bearing groove, and the conical fluted disc is arranged between the two pressure bearings.
In the above technical scheme, preferably, the bevel gear is connected with the bevel gear in a meshing manner, the bevel gear is provided with a rotating rod, the end part of the rotating rod extends out of the middle valve casing, the end part of the rotating rod is provided with a rotating wheel, and the bevel gear is driven to rotate by twisting the rotating wheel, so that the bevel gear is finally enabled to rotate.
In the above technical solution, preferably, a threaded pipe is provided at the top of the movable adjusting plate, the threaded pipe passes through the conical fluted disc and the threaded pipe and the conical fluted disc are connected by threads; the lateral wall of removal regulating plate is provided with the sand grip of a plurality of vertical directions, the inner wall of well valve casing is provided with the recess that quantity corresponds, the sand grip card is gone into in the recess makes the removal regulating plate can only reciprocate in well valve casing.
In the above technical scheme, preferably, the upper and lower sides of the sealing backing plate are respectively provided with an upper pressing plate and a lower pressing plate, the upper pressing plate is matched with the lower pressing plate to clamp the sealing backing plate and keep the sealing backing plate smooth, the diameter of the lower pressing plate is smaller than the aperture of a water supply circulation hole on the sealing plate, and the diameter of the upper pressing plate is larger than the aperture of the water supply circulation hole on the sealing plate.
In the above technical scheme, preferably, a connecting rod penetrates through the middle of the sealing backing plate, an end head is arranged at the bottom end of the connecting rod, a compression nut is arranged on the connecting rod, and the compression nut cooperates with the end head to compress an upper pressing plate, the sealing backing plate and a lower pressing plate between the compression nut and the end head; and sealing treatment is carried out between the connecting rod and the sealing backing plate.
In the above technical scheme, preferably, the valve casing is the right angle return bend for the appearance, is provided with the boss in the department of buckling, the boss is provided with the internal thread hole, internal thread hole threaded connection has adjusting nut, the sealing backing plate centre is provided with the connecting rod, the connecting rod upwards extends and pierces adjusting nut department, and is provided with the installation nut cooperation at the tip, adjusting nut is in when the internal thread hole screws to the bottom, makes sealing backing plate lid completely seals on the closing plate.
In the above technical scheme, preferably, the adjusting nut top is fixedly connected with an adjusting turntable.
In the above technical scheme, preferably, the bottom surface of the movable adjusting plate is provided with a plurality of stoppers, and the stoppers act on the end heads of the springs to generate an obstruction effect, so that the two stoppers are prevented from relative displacement or rotation.
In the above technical solution, preferably, the upper valve casing, the middle valve casing and the lower valve casing are assembled and installed in a threaded connection manner, and a sealing ring is arranged at the joint for sealing; or welding the upper valve casing, the middle valve casing and the lower valve casing together by utilizing a welding mode.
The invention provides a valve body structure for fire control, which can adjust the opening pressure according to the actual working condition, and realize the purpose of one valve for multiple purposes, namely, a purchaser only needs to purchase one valve, and can meet various different use scenes. And this device still has normally open function, can realize the purpose of quick pressure release, satisfies more service scenario.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following discussion will discuss the embodiments or the drawings required in the description of the prior art, and it is obvious that the technical solutions described in connection with the drawings are only some embodiments of the present invention, and that other embodiments and drawings thereof can be obtained according to the embodiments shown in the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a first embodiment of the present invention.
Fig. 2 is a schematic structural view of the bevel disk and its peripheral components of the present invention.
Fig. 3 is a schematic view of the structure of the gasket and its peripheral components of the present invention.
Fig. 4 is a schematic structural diagram of a second embodiment of the present invention.
In the drawing, a lower valve housing 1, an inlet 10, a sealing plate 11, a middle valve housing 2, a middle support plate 21, an upper valve housing 3, an outlet 30, an upper support plate 31, a fastening cylinder 32, a boss 33, an adjusting nut 34, an adjusting dial 35, a sealing pad 4, a connecting rod 41, a tip 411, an upper pressure plate 42, a lower pressure plate 43, a compression nut 44, a moving adjusting plate 5, a threaded pipe 51, a spring 52, a bevel gear 6, a pressure bearing 61, a bevel gear 7, a rotating rod 71, and a rotating wheel 72.
Detailed Description
The following description of the embodiments of the present invention will be made in detail and with reference to the accompanying drawings, wherein it is apparent that the embodiments described are only some, but not all embodiments of the present invention. All other embodiments, which can be made by a person of ordinary skill in the art without the need for inventive faculty, are within the scope of the invention, based on the embodiments described in the present invention.
Embodiment one: as shown in fig. 1 to 3, the first embodiment discloses an adjustable valve comprising an upper valve housing 3, a middle valve housing 2, a lower valve housing 3 and a valve core; an upper supporting plate 31 is arranged in the upper valve casing 3, a middle supporting plate 21 is arranged in the middle valve casing 2, and a sealing plate 11 is arranged in the lower valve casing 3; the valve core comprises a conical fluted disc 6, a movable adjusting plate 5 and a sealing backing plate 4, and holes for fluid to pass through are formed in the movable adjusting plate 5, the upper supporting plate 31, the middle supporting plate 21 and the sealing plate 11; a spring 52 is arranged between the movable adjusting plate 5 and the sealing backing plate 4, the upper supporting plate 31 is matched with the middle supporting plate 21 to mount and position the bevel gear disk 6, and the sealing backing plate 4 is pressed on the sealing plate 11 under the action of the spring 52 to realize sealing and stopping effects; the bevel disk 6 is rotated to change the distance between the moving adjusting plate 5 and the seal backing plate 4, thereby changing the initial compression amount of the spring 52.
The upper supporting plate 31 is provided with a fastening cylinder 32, the bottom of the fastening cylinder 32 and the middle supporting plate 21 are provided with bearing grooves, pressure bearings 61 are arranged in the bearing grooves, and the bevel gear disk 6 is arranged between the two pressure bearings 61.
Bevel gear 7 is connected with the meshing of awl tooth dish 6, bevel gear 7 is provided with dwang 71, and dwang 71 tip stretches out outside the well valve casing 2, dwang 71 end is provided with rotation wheel 72, thereby drives bevel gear 7 rotation through torsion rotation wheel 72, finally makes awl tooth dish 6 rotate. The top of the movable adjusting plate 5 is provided with a threaded pipe 51, and the threaded pipe 51 penetrates through the bevel gear 6 and is connected with the bevel gear through threads; the lateral wall of removal regulating plate 5 is provided with the sand grip of a plurality of vertical directions, the inner wall of well valve casing 2 is provided with the recess that quantity corresponds, the sand grip card is gone into in the recess makes remove regulating plate 5 only can reciprocate in well valve casing 2.
The bevel gear device drives the bevel gear 7 to rotate by utilizing the rotating wheel 73, and the bevel gear disk 6 rotates along with the bevel gear device by utilizing the meshing transmission relation of the gears. The bevel gear disk 6 is in threaded connection with the threaded pipe 51, and the movable adjusting plate 5 is limited to rotate, so that the movable adjusting plate 5 can be driven to move upwards or downwards under the rotation of the bevel gear disk 6. This compresses or releases the spring 32. The spring 32 is clamped between the movable adjusting plate 5 and the sealing backing plate 4, and only if the water pressure is large enough, the force acting on the bottom of the sealing backing plate 4 can overcome the elastic force of the spring 32 to jack up the sealing backing plate 4 upwards, so that the circulation of water flow is realized. The compressed length of the spring 32 is changed to deform the spring, so that the spring can be applied to the sealing pad 4. Thus, the regulation is completed.
The calculation formula according to the spring force is: F=f×G×d≡4/(8xn×d≡3)
F: pressure in N;
f: deformation in mm;
g: shear modulus of the material in MPa;
d: the diameter of the steel wire is in mm;
n: the effective number of turns of the spring;
d: spring pitch diameter in mm.
For the same spring, G, D, n and D are all constant, and the variation is f. Therefore, the present apparatus can change F by changing F.
In order to improve the sealing effect and the service life, the sealing pad 4 needs to be skillfully designed. Specifically: the upper and lower sides of the sealing backing plate 4 are respectively provided with an upper pressing plate 42 and a lower pressing plate 43, the upper pressing plate 42 is matched with the lower pressing plate 43 to clamp the sealing backing plate 4 and keep the sealing backing plate flat, the diameter of the lower pressing plate 43 is smaller than the aperture of a water supply circulation hole in the sealing plate 11, and the diameter of the upper pressing plate 42 is larger than the aperture of the water supply circulation hole in the sealing plate 11. A connecting rod 41 penetrates through the center of the sealing backing plate 4, an end 411 is arranged at the bottom end of the connecting rod, a compression nut 44 is arranged on the connecting rod 41, and the compression nut is matched with the end 411 to compress an upper pressing plate 42, the sealing backing plate 4 and a lower pressing plate 43 between the compression nut and the end 411; sealing treatment is performed between the connecting rod 41 and the sealing pad 4.
The upper valve casing 3, the middle valve casing 2 and the lower valve casing 3 are assembled and installed in a threaded connection mode, and sealing rings are arranged at the joints for sealing; or the upper valve housing 3, the middle valve housing 2 and the lower valve housing 3 are welded together by welding.
The upper valve housing 3 is provided with an outlet 30 and the lower valve housing 1 is provided with an inlet 10 from which inlet 10 water flow enters the valve. After the valve element is opened, it flows out of the outlet 30.
Finally, in order to avoid self-rotation of the conical toothed disc 6 under the action of the elastic force, it is necessary to provide a locking function. The device is provided with a plurality of insertion holes around the rotating rod 71 on the outer wall of the middle valve casing 2, and one or a plurality of through locking holes are arranged on the rotating wheel 72. And a magnet is provided in the rotating wheel 72 for magnetically attracting one or more pins. The bolt passes through the locking hole and is inserted into the jack, so that the self-locking function is realized. When the adjustment is needed, the bolt is pulled out.
In addition, the pin can assist in rotating the rotating wheel 72, so that the purpose of saving labor is achieved.
Embodiment two: the second embodiment provides a valve with a normally open function, and can realize quick normally open. Mainly through rotating adjusting nut 34, make it upwards move in boss 33 thereby pull the stay cord, drive connecting rod 41 and sealing backing plate 4 upwards move through the stay cord, open the through-hole on the closing plate 11 to realize normally open function.
The specific structure of the second embodiment is shown in fig. 4, and is different from the first embodiment in that: the upper valve casing 3 is a right-angle elbow pipe in shape, a boss 33 is arranged at a bending position, the boss 33 is provided with an internal threaded hole, an adjusting nut 34 is connected with the internal threaded hole in a threaded manner, the top end of the connecting rod 41 penetrates through the threaded pipe 51 to enter the inner cavity of the upper valve casing 3, a pull rope is fixedly connected to the top end of the connecting rod 41, and the end part of the pull rope penetrates upwards through the outer wall of the upper valve casing 3 and is connected with the adjusting nut 34; when the internal threaded hole is screwed to the bottom, the adjusting nut 34 releases the pull rope downwards, so that the sealing backing plate 4 is completely covered on the sealing plate 11 to seal.
An adjusting turntable 35 is fixedly connected to the top of the adjusting nut 34. The adjusting turntable 35 is utilized to drive the adjusting nut 34 to rotate, so that labor saving and rapid adjustment can be realized.
The bottom surface of the movable adjusting plate 5 is provided with a plurality of stoppers, and the stoppers act on the end heads of the springs 52 to generate an obstruction effect, so as to prevent the two from relative displacement or rotation. By this arrangement, the movement regulating plate 5 and the spring 52 are prevented from being worn out in time, and thus the life of the movement regulating plate 5 can be increased. In actual production, the machining difficulty and cost of the movable adjusting plate 5 are higher than those of the upper pressing plate 43, so that the service life can be prolonged, and the later maintenance cost can be reduced.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. Accordingly, the embodiments are to be considered in all respects as illustrative and not restrictive. The scope of the invention is indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
The invention provides a valve body structure for fire control, which can adjust the opening pressure according to the actual working condition, and realize the purpose of one valve for multiple purposes, namely, a purchaser only needs to purchase one valve, and can meet various different use scenes. And this device still has normally open function, can realize the purpose of quick pressure release, satisfies more service scenario.
Claims (8)
1. Valve body structure for fire control, its characterized in that: comprises an upper valve casing (3), a middle valve casing (2), a lower valve casing (1) and a valve core; an upper supporting plate (31) is arranged in the upper valve casing (3), a middle supporting plate (21) is arranged in the middle valve casing (2), and a sealing plate (11) is arranged in the lower valve casing (1); the valve core comprises a conical fluted disc (6), a movable adjusting plate (5) and a sealing base plate (4), and holes for fluid to pass through are formed in the movable adjusting plate (5), the upper supporting plate (31), the middle supporting plate (21) and the sealing plate (11); a spring (52) is arranged between the movable adjusting plate (5) and the sealing base plate (4), the upper supporting plate (31) is matched with the middle supporting plate (21) to install and position the bevel gear (6), and the sealing base plate (4) is pressed on the sealing plate (11) under the action of the spring (52) to realize sealing and stopping effects; rotating the bevel disk (6) to change the spacing between the moving adjusting plate (5) and the sealing backing plate (4), thereby changing the initial compression of the spring (52); the top of the movable adjusting plate (5) is provided with a threaded pipe (51), and the threaded pipe (51) penetrates through the bevel gear disk (6) and is connected with the bevel gear disk through threads; the side wall of the movable adjusting plate (5) is provided with a plurality of raised strips in the vertical direction, the inner wall of the middle valve casing (2) is provided with grooves with corresponding quantity, and the raised strips are clamped into the grooves, so that the movable adjusting plate (5) can only move up and down in the middle valve casing (2); the upper valve casing (3) is a right-angle bent pipe in shape, a boss (33) is arranged at the bent part, the boss (33) is provided with an internal threaded hole, and the internal threaded hole is in threaded connection with an adjusting nut (34);
an upper pressing plate (42) and a lower pressing plate (43) are respectively arranged on the upper side and the lower side of the sealing base plate (4), the upper pressing plate (42) is matched with the lower pressing plate (43) to clamp the sealing base plate (4) and keep the sealing base plate flat, a connecting rod (41) is penetrated in the middle of the sealing base plate (4), an end head (411) is arranged at the bottom end of the connecting rod, a compression nut (44) is arranged on the connecting rod (41), and the compression nut is matched with the end head (411) to compress the upper pressing plate (42), the sealing base plate (4) and the lower pressing plate (43) between the upper pressing plate and the lower pressing plate;
the top end of the connecting rod (41) passes through the threaded pipe (51) to enter the inner cavity of the upper valve casing (3), the top end of the connecting rod (41) is fixedly connected with a pull rope, and the end part of the pull rope upwards passes through the outer wall of the upper valve casing (3) and is connected with the adjusting nut (34); when the internal threaded hole is screwed to the bottom, the adjusting nut (34) releases the pull rope downwards, so that the sealing base plate (4) is completely covered on the sealing plate (11) to seal.
2. The fire valve body structure according to claim 1, wherein: the upper supporting plate (31) is provided with a fastening cylinder (32), a bearing groove is formed in the bottom of the fastening cylinder (32) and the middle supporting plate (21), a pressure bearing (61) is arranged in the bearing groove, and a conical fluted disc (6) is arranged between the two pressure bearings (61).
3. The fire valve body structure according to claim 2, wherein: bevel gear (7) are connected with in a meshing mode to bevel gear (6), the bevel gear (7) is provided with a rotating rod (71), the end portion of the rotating rod (71) extends out of the middle valve casing (2), the end portion of the rotating rod (71) is provided with a rotating wheel (72), and the bevel gear (7) is driven to rotate through torsion of the rotating wheel (72), so that the bevel gear (6) is finally enabled to rotate.
4. The fire valve body structure according to claim 1, wherein: the diameter of the lower pressing plate (43) is smaller than the aperture of a water supply circulation hole on the sealing plate (11), and the diameter of the upper pressing plate (42) is larger than the aperture of the water supply circulation hole on the sealing plate (11).
5. The fire valve body structure according to claim 4, wherein: and sealing treatment is carried out between the connecting rod (41) and the sealing backing plate (4).
6. The fire valve body structure according to claim 1, wherein: an adjusting rotary table (35) is fixedly connected to the top of the adjusting nut (34).
7. The fire valve body structure according to claim 1, wherein: the bottom surface of the movable adjusting plate (5) is provided with a plurality of stop blocks, and the stop blocks act on the end heads of the springs (52) to generate a blocking effect so as to prevent relative displacement or rotation of the stop blocks and the spring.
8. The fire valve body structure according to claim 1, wherein: the upper valve casing (3), the middle valve casing (2) and the lower valve casing (1) are assembled and installed in a threaded connection mode, and a sealing ring is arranged at the joint for sealing; or the upper valve casing (3), the middle valve casing (2) and the lower valve casing (1) are welded together by utilizing a welding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111162070.3A CN113775800B (en) | 2021-09-30 | 2021-09-30 | Valve body structure for fire control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111162070.3A CN113775800B (en) | 2021-09-30 | 2021-09-30 | Valve body structure for fire control |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113775800A CN113775800A (en) | 2021-12-10 |
| CN113775800B true CN113775800B (en) | 2023-11-28 |
Family
ID=78854573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111162070.3A Active CN113775800B (en) | 2021-09-30 | 2021-09-30 | Valve body structure for fire control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113775800B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB862655A (en) * | 1957-07-11 | 1961-03-15 | John Nicholson | Improvements in and relating to valves |
| CA1317851C (en) * | 1989-01-23 | 1993-05-18 | Wesley L. Taylor | Adjustable safety relief valve |
| WO2017123027A1 (en) * | 2016-01-14 | 2017-07-20 | (주)두쿰 | Check valve having forcible locking function |
| CN206629449U (en) * | 2017-01-24 | 2017-11-14 | 杨兴华 | A kind of fertilising instrument |
| CN108591554A (en) * | 2018-07-19 | 2018-09-28 | 中交西安筑路机械有限公司 | A kind of pressure balance safety valve |
| CN108678946A (en) * | 2018-07-31 | 2018-10-19 | 合肥集源穗意液压技术股份有限公司 | A kind of check valve for the pump housing |
| CN108799580A (en) * | 2017-04-27 | 2018-11-13 | 应鸽龙 | Multipurpose safety valve |
| CN209587160U (en) * | 2019-03-01 | 2019-11-05 | 魏利明 | A kind of butterfly valve |
| CN213575745U (en) * | 2020-11-06 | 2021-06-29 | 温州周泰阀门管件有限公司 | Adjustable check valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11692640B2 (en) * | 2018-02-10 | 2023-07-04 | Fisher Jeon Gas Equipment (Chengdu) Co., Ltd. | Actuator assembly for a fluid control device |
-
2021
- 2021-09-30 CN CN202111162070.3A patent/CN113775800B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB862655A (en) * | 1957-07-11 | 1961-03-15 | John Nicholson | Improvements in and relating to valves |
| CA1317851C (en) * | 1989-01-23 | 1993-05-18 | Wesley L. Taylor | Adjustable safety relief valve |
| WO2017123027A1 (en) * | 2016-01-14 | 2017-07-20 | (주)두쿰 | Check valve having forcible locking function |
| CN206629449U (en) * | 2017-01-24 | 2017-11-14 | 杨兴华 | A kind of fertilising instrument |
| CN108799580A (en) * | 2017-04-27 | 2018-11-13 | 应鸽龙 | Multipurpose safety valve |
| CN108591554A (en) * | 2018-07-19 | 2018-09-28 | 中交西安筑路机械有限公司 | A kind of pressure balance safety valve |
| CN108678946A (en) * | 2018-07-31 | 2018-10-19 | 合肥集源穗意液压技术股份有限公司 | A kind of check valve for the pump housing |
| CN209587160U (en) * | 2019-03-01 | 2019-11-05 | 魏利明 | A kind of butterfly valve |
| CN213575745U (en) * | 2020-11-06 | 2021-06-29 | 温州周泰阀门管件有限公司 | Adjustable check valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113775800A (en) | 2021-12-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104412018B (en) | Assembled high pressure flow control valve | |
| CN113775800B (en) | Valve body structure for fire control | |
| CN111720595A (en) | Valve for gas pipeline | |
| CN111173951B (en) | Gate valve | |
| CN107932891B (en) | A kind of plastic pipe wears device | |
| CN212203360U (en) | Intelligence electrical control valve convenient to fixed mounting | |
| CN113464674B (en) | Heavy-calibre wedge gate valve | |
| CN212018781U (en) | Automatic valve purging device | |
| CN210716044U (en) | Electric gate valve for high-pressure gas pipeline | |
| CN210313502U (en) | Light hydrocarbon extracting device | |
| CN219975384U (en) | Butterfly valve with adjustable flow | |
| CN207796228U (en) | A kind of butterfly valve gear sheet | |
| CN218972080U (en) | Supercharged filter valve | |
| CN201795051U (en) | O-shaped ring sealing valve | |
| CN210950124U (en) | Long-life pneumatic actuator of high-frequency pneumatic butterfly valve | |
| CN219119834U (en) | Adjustable water conservancy valve | |
| CN202082406U (en) | Valve with sealing ring | |
| CN219282915U (en) | Automatic change hydrovalve | |
| CN216279657U (en) | Stop valve with coupling assembling | |
| CN213298834U (en) | Dual-purpose stop valve | |
| CN214367777U (en) | Centralized control valve device | |
| CN212318803U (en) | Eccentric butterfly valve | |
| CN219954376U (en) | Flange butterfly valve | |
| CN220435433U (en) | Stainless steel electric butterfly valve | |
| CN209130222U (en) | A kind of single piece type floating ball valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |