CN113803519B - Corrugated pipe structure valve - Google Patents
Corrugated pipe structure valve Download PDFInfo
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- CN113803519B CN113803519B CN202111122119.2A CN202111122119A CN113803519B CN 113803519 B CN113803519 B CN 113803519B CN 202111122119 A CN202111122119 A CN 202111122119A CN 113803519 B CN113803519 B CN 113803519B
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- tray
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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
- F16K41/00—Spindle sealings
- F16K41/10—Spindle sealings with diaphragm, e.g. shaped as bellows or tube
- F16K41/106—Spindle sealings with diaphragm, e.g. shaped as bellows or tube for use with rotating spindles or valves
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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
-
- 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
- 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
- F16K1/38—Valve members of conical shape
- F16K1/385—Valve members of conical shape contacting in the closed position, over a substantial axial length, a seat surface having the same inclination
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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
- F16K1/46—Attachment of sealing rings
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0254—Construction of housing; Use of materials therefor of lift valves with conical shaped valve members
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
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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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
-
- 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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
- F16K47/023—Means in valves for absorbing fluid energy for preventing water-hammer or noise for preventing water-hammer, e.g. damping of the valve movement
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
The invention discloses a corrugated pipe structure valve, which comprises: the valve comprises a valve body, a valve assembly, a valve rod, a wave tube assembly, a sealing assembly, a tray and a hand wheel; the valve assembly is arranged in the valve body through the valve rod, the wave tube assembly is arranged on the valve rod and communicated with the top of the valve body, the sealing assembly is arranged at the top of the wave tube assembly, the tray is arranged above the wave tube assembly, and the valve rod penetrates through the top of the tray and is connected with the hand wheel. According to the corrugated pipe structure valve, through the design of the structure, when the valve rod moves, the corrugated pipe assembly can not influence the movement of the valve rod and can also keep the sealing between the valve rod and the valve body, so that leakage of liquid is prevented, the sealing assembly can seal the joint of the valve rod and the corrugated pipe assembly, and secondary leakage of the leaked liquid from the joint of the valve rod and the corrugated pipe assembly is avoided under the condition that the movement of the valve rod is not influenced.
Description
Technical Field
The invention relates to the technical field of valves, in particular to a corrugated pipe structure valve.
Background
At present, the sealing requirements of people on valves are higher and higher, particularly in special occasions such as nuclear devices, petroleum, chemical industry and the like, the valves are required to realize zero leakage, but all valves at present have one durability, and the valves need to be replaced periodically so as to realize zero leakage, and even if the valves are replaced frequently, the situation that the sealing between a valve rod and a valve body is incomplete is unavoidable, so that liquid medium leaks from the joint of the valve rod and the valve body. Accordingly, there is a need for a bellows structure valve that at least partially addresses the problems of the prior art.
Disclosure of Invention
In the summary, a series of concepts in a simplified form are introduced, which will be further described in detail in the detailed description. The summary of the invention is not intended to define the key features and essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
To at least partially solve the above problems, the present invention provides a bellows structure valve, comprising: the valve comprises a valve body, a valve assembly, a valve rod, a wave tube assembly, a sealing assembly, a tray and a hand wheel; the valve assembly is arranged in the valve body through the valve rod, the wave tube assembly is arranged on the valve rod and communicated with the top of the valve body, the sealing assembly is arranged at the top of the wave tube assembly, the tray is arranged above the wave tube assembly, and the valve rod penetrates through the top of the tray and is connected with the hand wheel.
Preferably, the valve body comprises a water inlet, a water outlet and a valve opening, and the wave tube assembly is communicated with the valve opening. A partition plate is arranged between the water inlet and the water outlet, a first through hole is formed in the partition plate, and the valve component is movably connected with the first through hole.
Preferably, the valve assembly comprises a thrust pad, a valve flap and a flap cover; the valve clack is arranged on the side wall of the bottom of the valve rod, the thrust pad is arranged at the bottom of the valve clack, the valve cover is arranged on the side wall of the valve rod, and the valve clack is connected with the valve rod through the valve cover.
Preferably, the wave tube assembly comprises a valve cover, an upper disc, a wave tube and a lower disc; the valve cover is internally provided with a second through hole, the upper disc is connected with the lower disc through a corrugated pipe, the upper disc, the corrugated pipe and the lower disc are all arranged in the second through hole, the upper disc is connected with the second through hole, the outer wall of the lower disc is connected with the inner wall of the second through hole in a sliding manner, the valve rod penetrates through the lower disc, the corrugated pipe and the upper disc, the lower disc is connected with the valve rod, and the sealing assembly is arranged at the top of the upper disc.
Preferably, the bottom surface of the upper disc is welded to the top surface of the valve cover, and the bottom surface of the lower disc is welded to the valve stem.
Preferably, the top surface of the upper disc is provided with a filling groove, the valve rod penetrates through the bottom surface of the filling groove, and the sealing assembly comprises a filler, a filler pressing sleeve and a filler pressing plate; the packing groove is internally provided with the packing, the packing pressing sleeve is arranged on the outer side wall of the valve rod and inserted into the packing groove, the packing pressing plate is arranged at the top of the packing pressing sleeve, the valve rod penetrates through the packing pressing plate, and the packing pressing plate is connected with the top of the valve cover through bolts.
Preferably, the tray is connected with the top of the valve cover through an upright post, the valve rod penetrates through the tray and is connected with the hand wheel, and the hand wheel is connected with the tray shaft.
Preferably, the tray is provided with an oil cup, and the oil cup is communicated with the joint of the tray and the hand wheel.
Preferably, a trapezoid step with a small upper part and a large lower part is arranged in the second through hole, the trapezoid step is positioned below the upper disc, a safety ring is arranged on the outer side wall of the bottom of the corrugated pipe, a safety sleeve is arranged between the corrugated pipe and the second through hole, the safety sleeve is positioned below the upper disc, and the safety ring is detachably connected with the safety sleeve;
the safety ring comprises a plurality of supporting sections, a plurality of inserting sections and a plurality of catches; the inserting sections and the supporting sections are alternately arranged, and the lock catches are arranged on the outer side wall of the inserting section;
the condom comprises a plurality of annular plates, the number of the annular plates is matched with that of the insertion sections, insertion grooves and buttonholes are formed in the bottom surface of the annular plates, the insertion sections are inserted into the insertion grooves, the insertion sections are connected with the bottoms of the annular plates through the cooperation of the lock catches and the buttonholes, the annular plates are taper plates, and clamping tables are arranged on the outer side walls of the tops of the annular plates.
Preferably, the water inlet and the water outlet are both provided with a water hammer assembly, and the water hammer assembly comprises a pipe body, a supporting ring, an impact ring, a deformation ring and an adjusting knob; the adjusting knob is arranged at the top of the pipe body and penetrates through the pipe body to be connected with the top of the supporting ring, a buffer groove is formed in one side of the supporting ring, the outer wall of the impact ring is connected with the inner wall of the buffer groove, the deformation ring is arranged on the side wall of the impact ring and is positioned in the buffer groove, and a compression cavity is formed between the impact ring and the deformation ring;
an air passage, a buffer cavity and a buffer pad are arranged in the support ring; the buffer cavity is located the edge of supporting ring, the blotter sets up in the buffer cavity, the lateral wall of supporting ring is provided with a plurality of spring slot, the spring slot is located in the buffer groove, the lateral wall of deformation ring is provided with a plurality of intubate, the intubate with spring slot grafting, the compression chamber pass through intubate, spring slot and air flue with the buffer cavity intercommunication.
Compared with the prior art, the invention at least comprises the following beneficial effects:
1. according to the corrugated pipe structure valve, through the design of the structure, when the valve rod moves, the corrugated pipe assembly can not influence the movement of the valve rod and can also keep the sealing between the valve rod and the valve body, so that leakage of liquid is prevented, the sealing assembly can seal the joint of the valve rod and the corrugated pipe assembly, and secondary leakage of the leaked liquid from the joint of the valve rod and the corrugated pipe assembly is avoided under the condition that the movement of the valve rod is not influenced.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
fig. 1 is a cross-sectional view of a bellows structure valve according to the present invention.
Fig. 2 is a schematic structural view of a bellows in a bellows structure valve according to the present invention.
Fig. 3 is a cross-sectional view of the bellows structure valve of the present invention at the bottom wall.
Fig. 4 is a schematic structural view of a safety ring in a bellows structure valve according to the present invention.
Fig. 5 is a top view of a safety ring in a bellows-type valve according to the present invention.
Fig. 6 is a partial cross-sectional view of a condom in a bellows structured valve according to the present invention.
Fig. 7 is a schematic diagram of the structure of the inserted connection of the safety ring and the safety sleeve in the bellows structure valve according to the invention.
Fig. 8 is a partial perspective view of fig. 7.
Fig. 9 is a schematic structural view of a water hammer assembly in a bellows structure valve according to the present invention.
Fig. 10 is a cross-sectional view of a water hammer assembly in a bellows structure valve according to the present invention.
Fig. 11 is a cross-sectional view at a in fig. 10.
Fig. 12 is a cross-sectional view at B in fig. 10.
Fig. 13 is a cross-sectional view of a damper chamber in a bellows structure valve according to the present invention.
In the figure: 1 valve body, 2 valve rods, 3 trays, 4 handwheels, 5 clapboards, 6 thrust pads, 7 valve clacks, 8 clacks, 9 valve caps, 10 upper discs, 11 corrugated pipes, 12 lower discs, 13 fillers, 14 filler pressing sleeves, 15 filler pressing plates, 16 upright posts, 17 oil cups, 18 safety rings, 181 supporting sections, 182 inserting sections, 183 locking catches, 19 safety sleeves, 191 annular plates, 192 inserting grooves, 193 buttonholes, 194 clamping tables, 20 water hammer assemblies, 201 pipe bodies, 202 supporting rings, 203 impact rings, 204 deformation rings, 205 adjusting knobs, 206 compression cavities, 207 air passages, 208 buffering cavities, 209 buffering cushions, 210 spring inserting grooves and 211 inserting pipes.
Detailed Description
The present invention is described in further detail below with reference to the drawings and examples to enable those skilled in the art to practice the invention by referring to the description.
It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1 to 13, the present invention provides a bellows structure valve, comprising: the valve comprises a valve body 1, a valve assembly, a valve rod 2, a wave tube assembly, a sealing assembly, a tray 3 and a hand wheel 4; the valve assembly is arranged in the valve body 1 through the valve rod 2, the wave tube assembly is arranged on the valve rod 2 and is communicated with the top of the valve body 1, the sealing assembly is arranged at the top of the wave tube assembly, the tray 3 is arranged above the wave tube assembly, and the valve rod 2 penetrates through the top of the tray 3 and is connected with the hand wheel 4.
The working principle of the technical scheme is as follows: when the valve needs to be opened, the hand wheel 4 on the tray 3 can drive the valve rod 2 to move upwards, the wave tube assembly and the valve assembly on the valve rod 2 can be driven to move in the process of moving upwards, so that the valve is opened, when leakage occurs between the valve rod 2 and the valve body 1, liquid can be blocked by the wave tube assembly on the valve rod 2 so as to prevent the liquid from leaking from the joint of the valve rod 2 and the valve body 1, and the sealing assembly can seal the wave tube assembly and the valve rod 2, so that the leaked liquid is prevented from leaking from the joint of the valve rod 2 and the wave tube assembly for the second time.
The beneficial effects of the technical scheme are that: through the design of above-mentioned structure, the wave tube subassembly can not influence its removal when valve rod 2 takes place to remove and also can keep the seal between valve rod 2 and the valve body 1 to prevent that liquid from leaking, seal assembly can seal the junction of valve rod 2 and wave tube subassembly, avoid leaking liquid to take place secondary leakage from the junction of valve rod 2 and wave tube subassembly under the circumstances that does not influence valve rod 2 and remove.
In one embodiment, the valve body 1 comprises a water inlet, a water outlet and a valve opening, and the wave tube assembly is communicated with the valve opening. A partition board 5 is arranged between the water inlet and the water outlet, a first through hole is formed in the partition board 5, and the valve component is movably connected with the first through hole.
The technical scheme has the working principle and beneficial effects that: through the design of above-mentioned structure, valve body 1 separates water inlet and delivery port through baffle 5 to can realize water route intercommunication and closing between water inlet and the delivery port through the cooperation of first through-hole and valve subassembly, valve opening and delivery port set up the homonymy at baffle 5, thereby make just can not have liquid to last to apply pressure to valve opening department's ripples pipe assembly and valve rod 2 after valve subassembly blocks up first through-hole, thereby increased valve rod 2 and ripples pipe assembly's life.
In one embodiment, the valve assembly comprises a thrust pad 6, a valve flap 7 and a flap cover 8; the valve clack 7 is arranged on the side wall of the bottom of the valve rod 2, the thrust pad 6 is arranged at the bottom of the valve clack 7, the valve clack cover 8 is arranged on the side wall of the valve rod 2, and the valve clack 7 is connected with the valve rod 2 through the valve clack cover 8.
The technical scheme has the working principle and beneficial effects that: through the design of above-mentioned structure, valve clack 7 and thrust pad 6 cooperate and block up first through-hole, and the diameter of valve clack 7 is greater than the diameter of first through-hole, and the diameter of thrust pad 6 is not greater than the diameter of valve clack 7 to can push in the thrust pad 6 first through-hole when valve rod 2 moves down, cooperate valve clack 7 to realize the seal to first through-hole simultaneously, and then realize the closure of valve, valve cover 8 can provide the support to prevent it to the installation of valve clack 7 is fixed.
In one embodiment, the bellows assembly comprises a valve cover 9, an upper disc 10, a bellows 11 and a lower disc 12; the valve gap 9 is inside to be provided with the second through-hole, the upper disc 10 pass through bellows 11 with the lower disc 12 is connected, the upper disc 10 the bellows 11 with the lower disc 12 all sets up in the second through-hole, the upper disc 10 with the second through-hole is connected, the outer wall of lower disc 12 with the inner wall sliding connection of second through-hole, valve rod 2 runs through lower disc 12 the bellows 11 with upper disc 10, lower disc 12 with valve rod 2 is connected, seal assembly sets up the top of upper disc 10, the bottom surface of upper disc 10 with the top surface welding of valve gap 9, the bottom surface of lower disc 12 with valve rod 2 welding.
The working principle of the technical scheme is as follows: the upper disc 10, the corrugated tube 11 and the lower disc 12 form a whole and are arranged in the second through hole, the lower disc 12 and the valve rod 2 are connected and sealed so as to prevent liquid from leaking from the joint of the lower disc 12 and the valve rod 2, the upper disc 10 is connected with the top of the valve cover 9 so as to prevent liquid from leaking from the joint of the upper disc 10 and the valve cover 9, the bottom of the valve cover 9 is connected with the valve opening in a sealing way so as to prevent liquid from leaking from the joint of the valve cover 9 and the valve opening, in order to prevent the leaked liquid from leaking from the joint of the valve rod 2 and the upper disc 10 for the second time, the top of the upper disc 10 is provided with a sealing component which can keep sealing under the condition that the valve rod 2 is not influenced, when the valve rod 2 is opened or closed, the valve rod 2 can drive the lower disc 12 to slide up and down in the second through hole, and once the liquid permeates from the joint of the lower disc 12 and the second through hole is blocked by the sealed corrugated tube 11 so as to prevent the liquid from leaking.
The beneficial effects of the technical scheme are that: through the design of above-mentioned structure, valve gap 9 and valve opening, upper disc 10 and valve gap 9, lower disc 12 and valve rod 2, upper disc 10 and bellows 11, bellows 11 and lower disc 12 all have carried out sealed processing thereby guarantee that the valve can not appear liquid leakage in the in-process of using, in order to guarantee normal rotation and the displacement of valve rod 2, need realize sealedly through seal assembly between valve rod 2 and the upper disc 10 to avoid bellows 11 long-term high frequency tensile damage to lead to the condition appearance of liquid secondary leakage from the junction of valve rod 2 and upper disc 10.
In one embodiment, the top surface of the upper disc 10 is provided with a filling groove, the valve rod 2 penetrates through the bottom surface of the filling groove, and the sealing assembly comprises a filler 13, a filler pressing sleeve 14 and a filler pressing plate 15; the packing groove is internally provided with the packing 13, a packing pressing sleeve 14 is arranged on the outer side wall of the valve rod 2 and inserted into the packing groove, a packing pressing plate 15 is arranged at the top of the packing pressing sleeve 14, the valve rod 2 penetrates through the packing pressing plate 15, the packing pressing plate 15 is connected with the top of the valve cover 9 through bolts, the tray 3 is connected with the top of the valve cover 9 through a stand column 16, the valve rod 2 penetrates through the tray 3 and is connected with the hand wheel 4, the hand wheel 4 is connected with the tray 3 through a shaft, an oil cup 17 is arranged on the tray 3, and the oil cup 17 is communicated with the joint of the tray 3 and the hand wheel 4.
The working principle of the technical scheme is as follows: when the upper disc 10 and the valve rod 2 are sealed, the filler 13 is required to be filled in the filling groove, the filler 13 can be made of wear-resistant materials, then the filler pressing sleeve 14 is pressed into the filling groove through the filler pressing plate 15, the filler 13 in the filling groove is compacted, so that the sealing effect is ensured, the filler pressing plate 15 can adjust the relative distance between the filler pressing sleeve and the bolt at the top of the valve cover 9, the compacting force of the filler pressing sleeve 14 on the filler 13 is adjusted, the position of the tray 3 is limited through the upright post 16, the support is provided for the installation of the hand wheel 4, the hand wheel 4 is connected with the tray 3 through a shaft, the hand wheel 4 can drive the valve rod 2 to move when rotating, so that the valve is controlled to be opened and closed, and the side wall of the tray 3 is further provided with an oil cup 17 for oiling the hand wheel 4.
The beneficial effects of the technical scheme are that: through the design of above-mentioned structure, the packing 13 in the filling tank can be changed regularly as required and the phenomenon such as sealed untight and packing 13 ageing appear in packing 13 live time too long, and the cooperation between packing cover 14 and the packing clamp plate 15 can adjust the compaction degree of packing 13 to resistance size when adjusting valve rod 2 for packing 13 motion through the compaction degree, and then the dynamics of turning of adjusting hand wheel 4, tray 3 can provide the support for the installation of hand wheel 4 simultaneously through the oil cup 17 on it can also carry out the oiling to the junction of hand wheel 4 and tray 3 and prevent that the axle junction from drying.
In one embodiment, a trapezoid step with a small top and a large bottom is arranged in the second through hole, the trapezoid step is positioned below the upper disc 10, a safety ring 18 is arranged on the outer side wall of the bottom of the corrugated tube 11, a safety sleeve 19 is arranged between the corrugated tube 11 and the second through hole, the safety sleeve 19 is positioned below the upper disc 10, and the safety ring 18 is detachably connected with the safety sleeve 19;
the safety ring 18 comprises a plurality of supporting sections 181, a plurality of inserting sections 182 and a plurality of locking catches 183; the inserting sections 182 and the supporting sections 181 are alternately arranged, and the lock catches 183 are arranged on the outer side wall of the inserting section 182;
the condom 19 comprises a plurality of annular plates 191, the number of the annular plates 191 is matched with that of the inserting sections 182, the bottom surface of the annular plates 191 is provided with an inserting groove 192 and a buttonhole 193, the inserting sections 182 are inserted into the inserting groove 192, the inserting sections 182 are connected with the bottom of the annular plates 191 through the cooperation of the lock catches 183 and the buttonholes 193, the annular plates 191 are taper plates, and clamping tables 194 are arranged on the outer side walls of the tops of the annular plates 191.
The working principle of the technical scheme is as follows: when the valve rod 2 is suddenly damaged and is pushed by liquid in the valve to rapidly rise, the corrugated pipe 11 is rapidly compressed, at the moment, the safety ring 18 positioned at the bottommost end of the corrugated pipe 11 also rapidly rises, the inserting section 182 on the safety pipe 18 is rapidly inserted into the inserting groove 192, the lock catch 183 is inserted into the lock hole 193, so that the rapid connection of the safety ring 18 and the safety sleeve 19 is realized, the valve rod 2 continuously moves upwards under the action of the liquid pressure in the valve, the corrugated pipe 11 wrapped by the annular plate 191 is extruded and deformed at the moment, the safety sleeve 19 is driven to move upwards, the annular plate 191 is a taper plate, the supporting section 181 bent under the extrusion of the corrugated pipe 11 is propped open, and the clamping platform 194 of the annular plate 191 is clamped by the trapezoid step in the second through hole, so that the corrugated pipe 11 piled together and deformed can prevent the lower plate 12 from continuously moving upwards and playing a role of buffering and sealing, and further realizing the safety effect of the valve.
The beneficial effects of the technical scheme are that: through the design of the structure, after the valve rod 2 is damaged, the safety ring 18 and the safety sleeve 19 can be quickly connected, the bellows 11 piled together can move upwards along with the safety sleeve 19 until the clamping table 194 is clamped by the trapezoid steps, then the bellows 11 is extruded and deformed to expand the safety ring 18 so as to expand the bottom of the safety sleeve 19, the truncated cone-shaped extruded bellows 11 can shock-absorb and buffer the lower disc 12 which quickly rises and is impacted on the lower disc, the situation that under the impact of the lower disc 12, the upper disc 10 is separated from the valve cover 9 to cause larger leakage accidents is avoided, and meanwhile, the piled bellows 11 can seal between the valve rod 2 and the upper disc 10 to prevent liquid leakage.
In one embodiment, the water inlet and the water outlet are provided with a water hammer assembly 20, and the water hammer assembly 20 comprises a pipe body 201, a supporting ring 202, an impact ring 203, a deformation ring 204 and an adjusting knob 205; the adjusting knob 205 is arranged at the top of the pipe body 201, the adjusting knob 205 penetrates through the pipe body 201 and is connected with the top of the supporting ring 202, a buffer groove is formed in one side of the supporting ring 202, the outer wall of the impact ring 203 is connected with the inner wall of the buffer groove, the deformation ring 204 is arranged on the side wall of the impact ring 203 and is positioned in the buffer groove, and a compression cavity 206 is formed between the impact ring 203 and the deformation ring 204;
an air passage 207, a buffer cavity 208 and a buffer pad 209 are arranged in the support ring 202; the buffer cavity 208 is located at the edge of the support ring 202, the buffer pad 209 is disposed in the buffer cavity 208, a plurality of spring slots 210 are disposed on the side wall of the support ring 202, the spring slots 210 are located in the buffer groove, a plurality of insertion tubes 211 are disposed on the side wall of the deformation ring 204, the insertion tubes 211 are inserted into the spring slots 210, and the compression cavity 206 is communicated with the buffer cavity 208 through the insertion tubes 211, the spring slots 210 and the air passages 207.
The working principle of the technical scheme is as follows: when the water hammer assembly 20 is installed, the pipe body 201 is installed at the water inlet and the water outlet respectively, after the installation is completed, the direction of the impact ring 203 can be adjusted through the adjusting knob 205, the impact ring 203 is adjusted to the impact direction of the water hammer, the water hammer can deform the impact ring 203 when impacting the impact ring 203, and then the water hammer extrudes air in the compression cavity 206, the compression cavity 206 can drive the deformation ring 204 to demonstrate that the deformation ring 204 deforms under the action of air pressure, so that the insertion pipe 211 extrudes a spring in the spring slot 210, meanwhile, air enters the air channel 207 from the insertion pipe 211, the air reaches the buffer cavity 208 through the air channel 207 and extrudes a hollow buffer cushion 209 in the buffer cavity, so that the transfer of the impact force of the water hammer is realized, the impact to the valve can be reduced after the water hammer assembly 20 is impacted, the service life of the valve is prolonged, after the water hammer is impacted, the hollow buffer cushion 209 can be recovered to be the original shape, and meanwhile, the air in the buffer cavity 208 is pushed back into the compression cavity 206 through the air channel 207 and the action force of the spring slot 210 is matched, so that the deformation ring 204 is reset, and meanwhile, the impact ring 203 is reset.
The beneficial effects of the technical scheme are that: through the design of the structure, the water hammer assembly 20 can convert and consume the acting force of the water hammer, so that the impact of the water hammer on the valve is reduced, the service life of the valve is prolonged, the adjusting knob 205 can enable the installation of the water hammer assembly 20 to be unrestricted, and the impact ring 203 is subjected to direction adjustment after the installation is completed, so that the situation that the water hammer repeatedly impacts between the water hammer assembly 20 and the valve due to direction loading reaction during the installation is avoided.
In one embodiment, to achieve a seal of the packing 13 against the valve stem 2 while the packing 13 is being compressed by the packing gland 14, the minimum compression height H of the packing 13 is calculated by the following equation
H＝10(C+KP) 2 /Q 2
Wherein H is the minimum contact height between the packing 13 and the valve rod 2 after compression; c is the material coefficient of the valve stem 2, typically steel and cemented carbide c=3.5, rubber c=0.4; k is the coefficient of influence of the medium pressure of the material of the valve stem 2 on the specific pressure value, typically steel and cemented carbide k=1, rubber k=0.6; p is the pressure of the packing 13 against the valve stem 2; q is the sealing specific pressure value of the filler 3 in the liquid normal temperature state.
The technical scheme has the working principle and beneficial effects that: the minimum contact height between the compressed filler 13 and the valve rod 2 is calculated through the formula, the tightness between the filler 13 and the valve rod 2 can be ensured as long as the height is larger than H, so that secondary leakage of liquid is avoided, and if the height of the filler 13 is smaller than H, the secondary leakage can be caused by exudation from a gap between the filler 13 and the valve rod 2 under the action of the liquid pressure.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (8)
1. A bellows structured valve, comprising: the valve comprises a valve body (1), a valve assembly, a valve rod (2), a wave tube assembly, a sealing assembly, a tray (3) and a hand wheel (4); the valve assembly is arranged in the valve body (1) through the valve rod (2), the wave tube assembly is arranged on the valve rod (2) and is communicated with the top of the valve body (1), the sealing assembly is arranged at the top of the wave tube assembly, the tray (3) is arranged above the wave tube assembly, and the valve rod (2) penetrates through the top of the tray (3) to be connected with the hand wheel (4);
the wave tube assembly comprises a valve cover (9), an upper disc (10), a corrugated tube (11) and a lower disc (12); the valve cover (9) is internally provided with a second through hole, the upper disc (10) is connected with the lower disc (12) through a corrugated pipe (11), the upper disc (10), the corrugated pipe (11) and the lower disc (12) are all arranged in the second through hole, the upper disc (10) is connected with the second through hole, the outer wall of the lower disc (12) is in sliding connection with the inner wall of the second through hole, the valve rod (2) penetrates through the lower disc (12), the corrugated pipe (11) and the upper disc (10), the lower disc (12) is connected with the valve rod (2), and the sealing assembly is arranged at the top of the upper disc (10);
a trapezoid step with a small upper part and a large lower part is arranged in the second through hole, the trapezoid step is positioned below the upper disc (10), a safety ring (18) is arranged on the outer side wall of the bottom of the corrugated pipe (11), a safety sleeve (19) is arranged between the corrugated pipe (11) and the second through hole, the safety sleeve (19) is positioned below the upper disc (10), and the safety ring (18) is detachably connected with the safety sleeve (19);
the safety ring (18) comprises a plurality of supporting sections (181), a plurality of inserting sections (182) and a plurality of catches (183); the inserting sections (182) and the supporting sections (181) are alternately arranged, and the lock catches (183) are arranged on the outer side wall of the inserting sections (182);
the condom (19) comprises a plurality of annular plates (191), the number of the annular plates (191) is matched with that of the inserting sections (182), inserting grooves (192) and buttonholes (193) are formed in the bottom surface of the annular plates (191), the inserting sections (182) are inserted into the inserting grooves (192), the inserting sections (182) are connected with the bottoms of the annular plates (191) through the cooperation of the lock catches (183) and the buttonholes (193), the annular plates (191) are taper plates, and clamping platforms (194) are arranged on the outer side walls of the tops of the annular plates (191).
2. The corrugated pipe structure valve according to claim 1, wherein the valve body (1) comprises a water inlet, a water outlet and a valve opening, the corrugated pipe assembly is communicated with the valve opening, a partition plate (5) is arranged between the water inlet and the water outlet, a first through hole is formed in the partition plate (5), and the valve assembly is movably connected with the first through hole.
3. A bellows structure valve according to claim 1, characterized in that the valve assembly comprises a thrust pad (6), a valve flap (7) and a flap cover (8); the valve clack (7) is arranged on the side wall of the bottom of the valve rod (2), the thrust pad (6) is arranged at the bottom of the valve clack (7), the valve cover (8) is arranged on the side wall of the valve rod (2), and the valve clack (7) is connected with the valve rod (2) through the valve cover (8).
4. A bellows structure valve according to claim 1, characterized in that the bottom surface of the upper disc (10) is welded to the top surface of the valve cap (9) and the bottom surface of the lower disc (12) is welded to the valve stem (2).
5. The bellows structure valve according to claim 1, characterized in that the top surface of the upper disc (10) is provided with a filling groove, the valve stem (2) penetrates the bottom surface of the filling groove, and the sealing assembly comprises a filler (13), a filler press sleeve (14) and a filler press plate (15); the packing groove is internally provided with the packing (13), the packing pressing sleeve (14) is arranged on the outer side wall of the valve rod (2) and inserted into the packing groove, the packing pressing plate (15) is arranged at the top of the packing pressing sleeve (14) and the valve rod (2) penetrates through the packing pressing plate (15), and the packing pressing plate (15) is connected with the top of the valve cover (9) through bolts.
6. The bellows structure valve according to claim 1, characterized in that the tray (3) is connected with the top of the valve cover (9) by a column (16), the valve stem (2) penetrates through the tray (3) to be connected with the hand wheel (4), and the hand wheel (4) is connected with the tray (3) by a shaft.
7. The corrugated valve according to claim 6, wherein an oil cup (17) is arranged on the tray (3), and the oil cup (17) is communicated with the joint of the tray (3) and the hand wheel (4).
8. The bellows structure valve according to claim 2, wherein the water inlet and the water outlet are each provided with a water hammer assembly (20), the water hammer assembly (20) comprising a tube body (201), a support ring (202), an impact ring (203), a deformation ring (204) and an adjustment knob (205); the adjusting knob (205) is arranged at the top of the pipe body (201), the adjusting knob (205) penetrates through the pipe body (201) and is connected with the top of the supporting ring (202), a buffer groove is formed in one side of the supporting ring (202), the outer wall of the impact ring (203) is connected with the inner wall of the buffer groove, the deformation ring (204) is arranged on the side wall of the impact ring (203) and is positioned in the buffer groove, and a compression cavity (206) is formed between the impact ring (203) and the deformation ring (204);
an air passage (207), a buffer cavity (208) and a buffer pad (209) are arranged in the support ring (202);
the buffer cavity (208) is located the edge of support ring (202), blotter (209) set up in buffer cavity (208), the lateral wall of support ring (202) is provided with a plurality of spring slot (210), spring slot (210) are located in the buffer groove, the lateral wall of deformation ring (204) is provided with a plurality of intubate (211), intubate (211) with spring slot (210) peg graft, compression cavity (206) pass through intubate (211), spring slot (210) and airway (207) with buffer cavity (208) intercommunication.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111122119.2A CN113803519B (en) | 2021-09-24 | 2021-09-24 | Corrugated pipe structure valve |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111122119.2A CN113803519B (en) | 2021-09-24 | 2021-09-24 | Corrugated pipe structure valve |
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| CN113803519A CN113803519A (en) | 2021-12-17 |
| CN113803519B true CN113803519B (en) | 2023-08-18 |
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| CN202111122119.2A Active CN113803519B (en) | 2021-09-24 | 2021-09-24 | Corrugated pipe structure valve |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114658859B (en) * | 2022-03-24 | 2024-01-19 | 江苏圣泰阀门有限公司 | Welding cleaning device and lubrication cooling device of bellows valve structure |
| CN114811061B (en) * | 2022-03-29 | 2023-08-04 | 江苏圣泰阀门有限公司 | Bellows stop valve pipe wall cleaning device |
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| DE2702285A1 (en) * | 1977-01-20 | 1978-07-27 | Fiand F Gmbh | Height adjustable support column for chairs - has axially flexible protective sleeve enclosing connecting area between telescopic parts |
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| CN205036872U (en) * | 2015-10-16 | 2016-02-17 | 盐城市圣泰阀门有限公司 | Novel both ends welding formula bellows stop valve |
| CN210566269U (en) * | 2019-06-27 | 2020-05-19 | 浙江德丰阀门有限公司 | Corrugated pipe stop valve |
| CN211875116U (en) * | 2020-03-24 | 2020-11-06 | 浙江欧罗泰克阀门有限公司 | Quadruple-sealing corrugated pipe stop valve special for chlorine |
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2021
- 2021-09-24 CN CN202111122119.2A patent/CN113803519B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB696344A (en) * | 1950-11-15 | 1953-08-26 | Melville Fuller Peters | Improvement in valve assemblies |
| DE2702285A1 (en) * | 1977-01-20 | 1978-07-27 | Fiand F Gmbh | Height adjustable support column for chairs - has axially flexible protective sleeve enclosing connecting area between telescopic parts |
| CN203051782U (en) * | 2012-11-28 | 2013-07-10 | 江苏鼎晟阀门有限公司 | Leakproof chlorine gas cut-off valve |
| KR20150057348A (en) * | 2013-11-19 | 2015-05-28 | 김동립 | Valve device for backflow and water hammer prevention |
| CN205036872U (en) * | 2015-10-16 | 2016-02-17 | 盐城市圣泰阀门有限公司 | Novel both ends welding formula bellows stop valve |
| CN210566269U (en) * | 2019-06-27 | 2020-05-19 | 浙江德丰阀门有限公司 | Corrugated pipe stop valve |
| CN211875116U (en) * | 2020-03-24 | 2020-11-06 | 浙江欧罗泰克阀门有限公司 | Quadruple-sealing corrugated pipe stop valve special for chlorine |
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| CN113803519A (en) | 2021-12-17 |
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