CN116576263B - Double-flat-plate sealing gate valve capable of avoiding blockage - Google Patents
Double-flat-plate sealing gate valve capable of avoiding blockage Download PDFInfo
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- CN116576263B CN116576263B CN202310854096.7A CN202310854096A CN116576263B CN 116576263 B CN116576263 B CN 116576263B CN 202310854096 A CN202310854096 A CN 202310854096A CN 116576263 B CN116576263 B CN 116576263B
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- valve
- fixedly connected
- valve body
- sealing
- storage bin
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- 238000007789 sealing Methods 0.000 title claims abstract description 75
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 99
- 230000005540 biological transmission Effects 0.000 claims description 17
- 241000237983 Trochidae Species 0.000 claims description 15
- 239000000945 filler Substances 0.000 claims description 9
- 230000000694 effects Effects 0.000 abstract description 10
- 239000012535 impurity Substances 0.000 abstract description 3
- 239000013049 sediment Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 11
- 230000000903 blocking effect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
-
- 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
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Sliding Valves (AREA)
Abstract
The application belongs to the field of double-flat-plate gate valves, and particularly relates to a double-flat-plate sealing gate valve capable of avoiding blockage, which comprises a first valve body, wherein two ends of the first valve body are symmetrically and fixedly connected with a water inlet pipe and a water outlet pipe respectively, the two ends of the water inlet pipe and the water outlet pipe extend into the first valve body, the water inlet pipe and the water outlet pipe are fixedly connected with the first valve body through two groups of screws, a water storage bin is arranged at the bottom side of a middle cylindrical part of the first valve body, a bottom shell is fixedly connected with the bottom end of the cylindrical part of the first valve body, an electric driving lever is fixedly connected with the center of the bottom side of the bottom shell, one end of a piston rod of the electric driving lever extends into the water storage bin and closely contacts with the inner wall of the water storage bin to relatively slide, and a sliding port communicated with the inside of the first valve body is arranged at the center of the bottom side of the plane of the water storage bin. According to the application, when the valve plate is about to be closed, water in the water storage bin is extruded by the electric drive rod, and high-speed water flow is formed at the gap between the valve plate and the valve seat, so that impurities such as silt and stones deposited at the valve seat are removed, and the reduction of the sealing effect is avoided.
Description
Technical Field
The application belongs to the field of double flat plate gate valves, and particularly relates to a double flat plate sealing gate valve capable of avoiding blockage.
Background
The double flat gate valve controls the opening and closing of the valve by the up-and-down movement of the two valve plates and cuts off the water flow, and in the actual use process of the existing double flat gate valve, a plurality of problems can be encountered, and the existing double flat gate valve has the following defects:
the valve plate is used in a scene containing sediment or solid impurities, the flashboard is often blocked by the sediment or stones in the closing process, so that sealing failure is caused by poor sealing, the sediment deposited on the valve seat for a long time can cause the blocking of the gate valve, the gate valve is hard to move and is also disabled when the valve plate is difficult to move, the two valve plates are usually fixedly connected together, one valve plate is blocked by the sediment stones and the other valve plate is also disabled, and the water hammer effect generated when the valve plate is suddenly closed acts on the valve plate to cause the sealing failure of the valve plate.
Disclosure of Invention
The application aims to solve the problems in the prior art and provides a double-flat-plate sealing gate valve capable of avoiding blockage.
The aim of the application can be achieved by the following technical scheme: the utility model provides a avoid two dull and stereotyped sealing gate valves of jam, includes first valve body, first valve body both ends symmetric distribution is fixedly connected with inlet tube and drain pipe respectively, in the first valve body is stretched into at the both ends of inlet tube and drain pipe, through two sets of screw fastening connection according to circumferencial direction evenly distributed between inlet tube and the drain pipe and the first valve body, the water storage bin has been seted up to first valve body middle cylinder part bottom side, first valve body cylinder part bottom fixedly connected with drain pan, drain pan bottom side center department fixedly connected with electricity drives the thick stick, the piston rod one end of electricity drives the thick stick stretches into in the water storage bin and closely laminates relative slip with the water storage bin inner wall, the inside sliding port of intercommunication first valve body is seted up to water storage bin plane upside center department.
Preferably, the retainer plate of fixedly connected with central opening on the water storage bin plane upside, retainer plate central opening's diameter is less than the diameter of sliding port, sliding connection has the filter vat in the sliding port, one side that the filter vat is close to the drain pan communicates with the water storage bin, a plurality of logical grooves that link up have been seted up according to circumferencial direction evenly distributed on the filter vat circumference outer wall, many filter tanks have been seted up to evenly distributed on the one end that the drain pan was kept away from to the filter vat.
Preferably, the first valve body upper end fixedly provided with second valve body, the one end fixedly connected with top shell that first valve body was kept away from to the second valve body, the one side center department fixedly provided with sealing seat that the top shell kept away from the second valve body, through a set of bolt-up connection according to circumferencial direction evenly distributed between top shell and the second valve body, sealing seat center department sliding connection has the valve rod, the valve rod stretches into the first support of one end fixedly connected with in the second valve body, the spout has been seted up to the department under the valve rod in the first support, one side center department fixedly connected with slide bar that the spout is close to the valve rod, sliding connection has the second support opposite with first support orientation on the slide bar, the one end fixedly connected with of second support and connecting plate fixed connection's fixed plate are stretched out to the slide bar, fixedly connected with encircles the spring in the slide bar outside between second support and the spout bottom side.
Preferably, one end of the first support, which is close to the water inlet pipe, is fixedly connected with a connecting plate perpendicular to the axis of the water inlet pipe, one end of the second support, which is close to the water outlet pipe, is fixedly connected with another connecting plate perpendicular to the axis of the water outlet pipe, two annular valve plate rings are respectively and fixedly connected with two sides, which are far away from each other, of the connecting plate, conical openings are formed in the inner ring parts of the two ends, which extend into the first valve body, of the water inlet pipe and the water outlet pipe, a floating valve plate corresponding to the shape and the size of each conical opening is slidably connected in each valve plate ring, and an elastic sealing ring is fixedly connected between each floating valve plate and each valve plate ring.
Preferably, the sealing seat is internally and fixedly connected with annular sealing filler encircling the outer side of the valve rod, the sealing filler is used for sealing, has elasticity and closely clings to and slides relative to the cylindrical surface at the lower end of the valve rod, the sealing seat is fixedly connected with a sealing cover which is in sliding connection with the valve rod on one side far away from the second valve body, and the central protruding part of the sealing cover stretches into a gap between the sealing seat and the valve rod and is closely clinged to the sealing filler.
Preferably, one side of the sealing cover, which is far away from the sealing seat, is fixedly connected with an extension sleeve which is in sliding connection with the valve rod, the extension sleeve, the sealing cover and the sealing seat are connected through a group of bolts which are uniformly distributed along the circumferential direction, one end of the extension sleeve, which is far away from the top shell, is fixedly connected with an internally hollow pulley shell which is in sliding connection with the valve rod, the pulley shell is fixedly connected with the extension sleeve through a group of bolts, one end of the worm part, which extends out of the upper end of the valve rod, of the extension sleeve is positioned on the part, which is positioned in the pulley shell, is in meshed transmission connection with a driven wheel, one end, which is far away from the valve rod, of the pulley shell is in rotary connection with a transmission shaft, a driving wheel is fixedly connected with the part, which is positioned in the pulley shell, which is close to the top shell, is positioned at the position corresponding to the transmission shaft, is fixedly connected with a motor, and an output shaft of the motor is in transmission connection with the driven wheel.
Compared with the prior art, the double-flat-plate sealing gate valve for avoiding blockage has the following advantages:
when two valve plates are to be closed, a small gap is formed between the valve plates and the valve seat, high-pressure water flow is generated between the two valve plates by utilizing an electric drive bar to pass through the gap at a high speed, sediment deposited at the valve seat is flushed away and removed, accordingly, the valve plates are guaranteed not to be blocked, normal closing of the valve is guaranteed, blocking caused by sediment deposition in the valve is avoided, the two valve plates float mutually, the valve plates at one side of the drain pipe are closed at first when the valve plates are closed, high-pressure water flow generated at the position of the water storage bin is prevented from flowing through the gap at one side of the drain pipe only, after the valve plates at two sides are closed, the floating valve plates at two sides are extruded in a high-pressure state in the first valve body, the sealing effect is guaranteed by tightly attaching the valve plates at two sides, and the sealing effect is guaranteed when the valve plates are impacted by a water hammer.
Drawings
Fig. 1 is a schematic perspective view of the present application.
Fig. 2 is a side view of the present application.
Fig. 3 is a cross-sectional view at A-A in fig. 2.
Fig. 4 is a partial enlarged view at E in fig. 3.
Fig. 5 is a partial enlarged view at F in fig. 3.
Fig. 6 is a partial cross-sectional view at B-B in fig. 3.
Fig. 7 is a partial cross-sectional view at C-C of fig. 3.
Fig. 8 is a partial cross-sectional view at D-D in fig. 3.
In the figure: the water inlet pipe 10, the water outlet pipe 11, the first valve body 12, the bottom shell 13, the electric drive rod 14, the top shell 15, the sealing seat 16, the extension sleeve 17, the pulley shell 18, the valve rod 19, the transmission shaft 20, the motor 21, the driven wheel 22, the transmission chain 23, the driving wheel 24, the fixed ring 25, the water storage bin 26, the sliding port 27, the filter vat 28, the through groove 29, the filter vat 30, the conical port 31, the floating valve plate 32, the valve plate ring 33, the sealing ring 34, the connecting plate 35, the first bracket 36, the sliding rod 37, the spring 38, the second bracket 39, the fixed plate 40, the sealing packing 41, the sealing cover 42, the sliding groove 43 and the second valve body 44.
Detailed Description
The application aims to provide a double-flat-plate sealing gate valve capable of avoiding blockage, which can extrude water in a water storage bin by using an electric drive bar when a valve plate is about to be closed, and form high-speed water flow at a gap between the valve plate and a valve seat, so that impurities such as silt and stones deposited at the valve seat are removed, and the reduction of sealing effect is avoided.
In order to better understand the aspects of the present application, the present application will be described in further detail with reference to the accompanying drawings and detailed description.
It should be noted that, the terms upper and lower are defined in fig. 1 to 8 by the positions of the components in the drawings and the positions of the components with respect to each other, and are only used for the sake of clarity and convenience in expressing the technical solutions. It should be understood that the use of directional terms herein should not be construed to limit the scope of the application as claimed.
Embodiment one:
as shown in fig. 1, fig. 2, fig. 3 and fig. 4, a double-flat-plate sealing gate valve capable of avoiding blockage comprises a first valve body 12, a water inlet pipe 10 and a water outlet pipe 11 are symmetrically and fixedly connected to two ends of the first valve body 12, two ends of the water inlet pipe 10 and the water outlet pipe 11 extend into the first valve body 12, the water inlet pipe 10, the water outlet pipe 11 and the first valve body 12 are fixedly connected through two groups of screws uniformly distributed along the circumferential direction, a water storage bin 26 is formed in the bottom side of a middle cylindrical part of the first valve body 12, a bottom shell 13 is fixedly connected to the bottom end of the cylindrical part of the first valve body 12, an electric driving lever 14 is fixedly connected to the center of the bottom side of the bottom shell 13, one end of a piston rod of the electric driving lever 14 extends into the water storage bin 26 and closely contacts and slides relatively with the inner wall of the water storage bin 26, and a sliding port 27 communicated with the inside of the first valve body 12 is formed in the center of the upper side of the plane of the water storage bin 26.
As shown in fig. 3, 4 and 8, a fixing ring 25 with a central opening is fixedly connected to the upper side of the plane of the water storage bin 26, the diameter of the central opening of the fixing ring 25 is smaller than that of a sliding opening 27, a filter vat 28 is slidably connected to the sliding opening 27, one side, close to the bottom shell 13, of the filter vat 28 is communicated with the water storage bin 26, a plurality of through grooves 29 are uniformly distributed on the circumferential outer wall of the filter vat 28 in the circumferential direction, and a plurality of filter tanks 30 are uniformly distributed on one end, far away from the bottom shell 13, of the filter vat 28.
As shown in fig. 3, fig. 4 and fig. 6, the upper end of the first valve body 12 is fixedly provided with a second valve body 44, one end of the second valve body 44 away from the first valve body 12 is fixedly connected with a top shell 15, a center of one side of the top shell 15 away from the second valve body 44 is fixedly provided with a sealing seat 16, the top shell 15 and the second valve body 44 are fixedly connected through a group of bolts uniformly distributed along the circumferential direction, the center of the sealing seat 16 is slidably connected with a valve rod 19, one end of the valve rod 19 extending into the second valve body 44 is fixedly connected with a first bracket 36, a sliding groove 43 is formed in the first bracket 36 and is positioned right below the valve rod 19, one side center of the sliding groove 43, close to the valve rod 19, is fixedly connected with a sliding rod 37, a second bracket 39 opposite to the first bracket 36 is slidably connected on the sliding rod 37, one end of the sliding rod 37 extending out of the second sliding rod bracket 39 is fixedly connected with a fixing plate 40 fixedly connected with a connecting plate 35, and a spring 38 encircling the outer side of the sliding rod 37 is fixedly connected between the second bracket 39 and the bottom side of the sliding rod 43.
In this embodiment, the valve is in a communicating state, the valve plate is located in the second valve body 44, the electric driving rod 14 is retracted and stores water in the water storage bin 26, when the electric driving rod is required to be closed, the control motor 21 drives the driving wheel 24 to drive the driven wheel 22 to rotate, the driven wheel 22 which rotates is meshed with the valve rod 19, so that the valve rod 19 moves downwards to drive the valve plate to descend for sealing, in the process, the electric driving rod 14 is controlled to extend outwards, and therefore sediment deposited in the first valve body 12 is removed by discharging water stored in the water storage bin 26 from the sliding port 27, and the gate valve is prevented from being blocked.
In the process, the water pressure in the water storage bin 26 is increased, the filter vat 28 is pushed to slide in the sliding port 27 until the through groove 29 is communicated with the interior of the first valve body 12 to facilitate water drainage, the filter vat 28 keeps a state of extending out of the sliding port 27 under the impact of water flowing out of the water storage bin 26, then in the process of opening the gate valve, the electric drive lever 14 is controlled to retract to store water in the water storage bin 26 again, the water pressure in the water storage bin 26 is reduced in the process, the filter vat 28 falls back into the sliding port 27 again, the through groove 29 is not communicated with the interior of the first valve body 12 any more, at the moment, water in the first valve body 12 only enters the water storage bin 26 from the filter vat 30, so that sediment in water is filtered, sediment in the water storage bin 26 is prevented from affecting work, and sediment in water discharged from the water storage bin 26 when the gate valve is prevented from being closed again, so that sediment enters gaps between the valve plate and the valve seat, and the closing of the valve is affected.
Embodiment two:
as a further embodiment, as shown in fig. 3, 4 and 6, one end of the first support 36, which is close to the water inlet pipe 10, is fixedly connected with a connecting plate 35 perpendicular to the axis of the water inlet pipe 10, one end of the second support 39, which is close to the water outlet pipe 11, is fixedly connected with another connecting plate 35 perpendicular to the axis of the water outlet pipe 11, two annular valve plate rings 33 are respectively fixedly connected with two sides, which are far away from each other, of the two connecting plates 35, conical openings 31 are formed at inner rings at two ends, which extend into the first valve body 12, of the water inlet pipe 10 and the water outlet pipe 11, floating valve plates 32 corresponding to the shape and the size of each conical opening 31 are slidably connected with each valve plate ring 33, and an elastic sealing ring 34 is fixedly connected between each floating valve plate 32 and each valve plate ring 33.
As shown in fig. 2, 3 and 5, an annular sealing filler 41 surrounding the outer side of the valve rod 19 is fixedly connected in the sealing seat 16, the sealing filler 41 is used for sealing and has elasticity and closely fitting and relatively sliding with the cylindrical surface of the lower end of the valve rod 19, a sealing cover 42 in sliding connection with the valve rod 19 is fixedly connected on one side of the sealing seat 16 away from the second valve body 44, and a central protruding part of the sealing cover 42 extends into a gap between the sealing seat 16 and the valve rod 19 and is closely fitting with the sealing filler 41.
As shown in fig. 1, fig. 2, fig. 3 and fig. 7, an extension sleeve 17 which is in sliding connection with the valve rod 19 is fixedly connected to one side of the sealing cover 42, which is far away from the sealing seat 16, the extension sleeve 17, the sealing cover 42 and the sealing seat 16 are in fastening connection through a set of bolts which are uniformly distributed along the circumferential direction, an internally hollow pulley shell 18 which is in sliding connection with the valve rod 19 is fixedly connected to one end of the extension sleeve 17, which is far away from the top shell 15, the pulley shell 18 is in fastening connection with the extension sleeve 17 through a set of bolts, a driven wheel 22 is engaged and connected to the part, which is located in the pulley shell 18, of one end, which is far away from the valve rod 19, of a worm part, which extends out of the extension sleeve 17, is in a part, which is located in the pulley shell 18, a transmission shaft 20 is in a rotating connection with one end, which is far away from the valve rod 19, of the pulley shell 18 is in a part, which is located in the pulley shell 18 is fixedly connected with a driving wheel 24, a driving wheel which is in a transmission connection with the driven wheel 22 through a transmission chain 23, a motor 21 is fixedly connected to one side, which is located at the position, which is close to the top shell 18, of the pulley shell 20 to the corresponding to the transmission shaft 20, which is located in correspondence to the position of the transmission shaft, through the transmission shaft driving chain 23.
In this embodiment, when the two valve plates are about to be closed in the process of closing the gate valve, a gap is formed between the valve plate ring 33 and the valve seat portion of the first valve body 12, and at this time, the electric driving rod 14 pushes out water in the water storage bin 26 and forms high water pressure, and the high-pressure water flow passes through the gap at a high speed, so that sediment deposited on the valve seat is flushed clean, thereby avoiding the sealing between the valve plate and the valve seat being not tight in the process of closing the gate valve.
In the process of closing the valve, the position of the valve plate on one side of the water drain pipe 11 is always lower than that of the valve plate on one side of the water inlet pipe 10 under the action of the spring 38, so that in the process of closing the valve, a gap is formed between the valve plate on one side of the water drain pipe 11 and the valve seat, high-pressure water flow passes through the gap between the valve plate on one side of the water drain pipe 11 and the valve seat to flush sediment, then the valve plate on one side of the water drain pipe 11 is closed, high-pressure water flow in the water storage bin 26 cannot flow to one side of the water inlet pipe 10 after being discharged from the water drain pipe 11, and at the moment, a gap is formed between the valve plate on one side of the water inlet pipe 10 and the valve seat on the other side, and the high-pressure water flow flushes sediment from the gap on the one side, so that normal operation of the valve is ensured.
Simultaneously, two valve plates float relatively, wear or block in one of them valve plate, when can't guarantee effective seal, another valve plate still can remove, and combine with the disk seat and guarantee sealed effect, then after two valve plates combine with the disk seat and seal, electric drive lever 14 continues to promote, form high pressure in first valve body 12 and between two valve plates, thereby promote two floating valve plates 32 extrusion sealing washer 34 and combine closely with toper mouth 31, when further guaranteeing sealed effect, produce the water hammer effect in inlet tube 10 one side when closing the gate valve suddenly, rivers impact floating valve plate 32, and floating valve plate 32 can play the effect of buffering the water hammer, thereby avoid valve body and valve plate to receive the harm of water hammer effect, guarantee the life and the sealing quality of valve.
The foregoing description is only illustrative of the present application and is not intended to limit the scope of the application, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present application or directly or indirectly applied to other related technical fields are included in the scope of the application.
Claims (3)
1. The utility model provides a avoid two flat sealing gate valves of jam, includes first valve body (12), its characterized in that, first valve body (12) both ends symmetric distribution is fixedly connected with inlet tube (10) and drain pipe (11) respectively, in the both ends of inlet tube (10) and drain pipe (11) stretch into first valve body (12), through two sets of screw fastening connection according to circumferencial direction evenly distributed between inlet tube (10) and drain pipe (11) and first valve body (12), water storage bin (26) have been seted up to first valve body (12) middle cylinder part bottom, first valve body (12) cylinder part bottom fixedly connected with drain pan (13), drain pan (13) bottom side center department fixedly connected with electric drive thick stick (14), in piston rod one end of electric drive thick stick (14) stretches into water storage bin (26) and closely laminates the relative slip with water storage bin (26), water storage bin (26) plane upside center department has seted up sliding port (27) inside intercommunication first valve body (12);
the water storage bin (26) is fixedly connected with a fixing ring (25) with a central opening on the upper side of the plane, the diameter of the central opening of the fixing ring (25) is smaller than that of a sliding opening (27), a filter vat (28) is connected in the sliding opening (27) in a sliding manner, one side, close to a bottom shell (13), of the filter vat (28) is communicated with the water storage bin (26), a plurality of through grooves (29) are uniformly distributed on the circumferential outer wall of the filter vat (28) according to the circumferential direction, and a plurality of filter grooves (30) are uniformly distributed on one end, far away from the bottom shell (13), of the filter vat (28);
the novel valve is characterized in that a second valve body (44) is fixedly arranged at the upper end of the first valve body (12), a top shell (15) is fixedly connected to one end, far away from the first valve body (12), of the second valve body (44), a sealing seat (16) is fixedly arranged at the center of one side, far away from the second valve body (44), of the top shell (15), the top shell (15) is fixedly connected with the second valve body (44) through a group of bolts uniformly distributed in the circumferential direction, a valve rod (19) is slidably connected to the center of the sealing seat (16), one end, stretching into the second valve body (44), of the valve rod (19) is fixedly connected with a first support (36), a sliding groove (43) is formed in the first support (36) and is positioned right below the valve rod (19), a sliding rod (37) is fixedly connected to the center of one side, close to the valve rod (19), of the sliding groove (43), a second support (39) opposite to the first support (36) is slidably connected to the sliding rod (37), one end, stretching out of the second support (39), is fixedly connected with a first support (35), and is fixedly connected with a spring (38) and surrounds the sliding rod (37);
one end fixedly connected with that first support (36) is close to inlet tube (10) is with connecting plate (35) of inlet tube (10) axle center vertically, one end fixedly connected with that second support (39) is close to drain pipe (11) is another with connecting plate (35) of drain pipe (11) axle center vertically, two both sides that connecting plate (35) kept away from each other are fixedly connected with two annular valve plate rings (33) respectively, conical mouth (31) have been seted up in the both ends inner ring department that inlet tube (10) and drain pipe (11) stretched into first valve body (12), every valve plate ring (33) sliding connection has with the float valve plate (32) that every conical mouth (31) shape size corresponds, every fixedly connected with has elastic sealing washer (34) between float valve plate (32) and the valve plate ring (33).
2. The double-flat-plate sealing gate valve for avoiding blockage according to claim 1, wherein an annular sealing filler (41) encircling the outer side of the valve rod (19) is fixedly connected in the sealing seat (16), the sealing filler (41) is used for sealing, has elasticity and closely fits and slides relatively with the cylindrical surface of the lower end of the valve rod (19), a sealing cover (42) which is in sliding connection with the valve rod (19) is fixedly connected on one side, far away from the second valve body (44), of the sealing seat (16), and a central protruding part of the sealing cover (42) extends into a gap between the sealing seat (16) and the valve rod (19) to closely fit with the sealing filler (41).
3. The double flat sealing gate valve for avoiding blockage according to claim 2, wherein one side of the sealing cover (42) far away from the sealing seat (16) is fixedly connected with an extension sleeve (17) which is in sliding connection with the valve rod (19), the extension sleeve (17), the sealing cover (42) and the sealing seat (16) are fixedly connected through a group of bolts uniformly distributed along the circumferential direction, one end of the extension sleeve (17) far away from the top shell (15) is fixedly connected with an internally hollow pulley shell (18) which is in sliding connection with the valve rod (19), the pulley shell (18) is fixedly connected with the extension sleeve (17) through a group of bolts, one end of a worm part at the upper end of the valve rod (19) extends out of the extension sleeve (17) and is in meshed transmission connection with a driven pulley (22) on the part of the pulley shell (18), one end of the pulley shell (18) far away from the valve rod (19) is in rotary connection with a transmission shaft (20), one end of the transmission shaft (20) located in the pulley shell (18) is fixedly connected with a driving pulley (24), one end of the driven pulley (24) and the driven pulley (24) is in sliding connection with the pulley shell (19) on one side of the pulley shell (21) near to the corresponding transmission shaft (21) through a group of bolts, an output shaft of the motor (21) is in transmission connection with a driven wheel (22).
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| CN202310854096.7A CN116576263B (en) | 2023-07-13 | 2023-07-13 | Double-flat-plate sealing gate valve capable of avoiding blockage |
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| CN202310854096.7A CN116576263B (en) | 2023-07-13 | 2023-07-13 | Double-flat-plate sealing gate valve capable of avoiding blockage |
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| CN116576263B true CN116576263B (en) | 2023-11-03 |
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