CN112780787A - Butterfly valve and use method thereof - Google Patents
Butterfly valve and use method thereof Download PDFInfo
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- CN112780787A CN112780787A CN202110165448.9A CN202110165448A CN112780787A CN 112780787 A CN112780787 A CN 112780787A CN 202110165448 A CN202110165448 A CN 202110165448A CN 112780787 A CN112780787 A CN 112780787A
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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
- F16K1/16—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 with pivoted closure-members
- F16K1/18—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 with pivoted closure-members with pivoted discs or flaps
- F16K1/22—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 with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly 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
- F16K1/16—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 with pivoted closure-members
- F16K1/18—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 with pivoted closure-members with pivoted discs or flaps
- F16K1/22—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 with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
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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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The invention discloses a butterfly valve and a using method thereof, the butterfly valve comprises a valve body, a connecting cylinder is vertically arranged at the top of the valve body, a valve plate is arranged in the valve body, a valve rod is vertically and fixedly connected to the upper side of the valve plate, the valve rod is rotatably inserted into the connecting cylinder, and an automatic pressurizing and sealing structure is arranged at the connecting cylinder. According to the invention, leaked water overflows from the upper end of the connecting cylinder, the first liquid induction switch induces to contract the small hydraulic telescopic rods at all positions, so that the first rubber sealing plug slides towards the outer side of the connecting cylinder, the port of the drainage channel below the position of the first rubber sealing plug is opened, water permeating into the connecting cylinder conveniently flows back into the valve body through the drainage channel, the rubber filling ring and the inner side wall of the connecting cylinder are prevented from being soaked by water for a long time and further corroded and damaged, and the small hydraulic telescopic rods are reset after a period of time under the action of the countdown starting switch.
Description
Technical Field
The invention relates to the technical field of butterfly valves, in particular to a butterfly valve and a using method thereof.
Background
The butterfly valve is also called as a flap valve, is a regulating valve with simple structure, and can be used for the on-off control of low-pressure pipeline media, namely a valve which has a closing member (a valve clack or a butterfly plate) as a disk and can rotate around a valve shaft to open and close;
the disadvantages of the common butterfly valve are that: some inside sealing members of general butterfly valve are all made of rubber materials, install and use than long time after on the water service pipe, ageing condition appears easily in these rubber seal, in case ageing damage, the seepage will appear, more common seepage position mainly has the rotatory valve rod position and the flange butt joint position of valve, and generally to the valve of ageing seepage, the maintainer is when the maintenance, need dismantle the valve, then unpack apart, change relevant sealing member, it is more troublesome, it is convenient inadequately, if the water of seepage can not in time be handled simultaneously, the relevant part of valve is adhered to or soaked for a long time, the condition of corrosion appears easily, the valve damage accelerates.
Disclosure of Invention
The present invention is directed to a butterfly valve and a method for using the same to solve the problems of the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a butterfly valve comprises a valve body, wherein a connecting cylinder is vertically arranged at the top of the valve body, a valve plate is arranged in the valve body, a valve rod is fixedly connected to the upper side of the valve plate in a vertical mode, the valve rod is inserted into the connecting cylinder in a rotating mode, an automatic pressurization sealing structure is arranged at the connecting cylinder and comprises a first liquid induction switch, a rubber filling ring, a top sleeve, a small hydraulic telescopic rod, a countdown starting switch, a connecting top block, a first rubber sealing plug, a drainage channel, a linkage rod, a piston air cylinder, a first piston block, a push rod, an air outlet pipe head, a first one-way air valve, a vent pipe, a second one-way air valve, an air cavity, a second piston block, a push rod and a top ring, the rubber filling ring is sleeved on the valve rod, meanwhile, the rubber filling ring is located in the connecting cylinder, the top sleeve is fixedly arranged at the upper end, the top sleeve is abutted against the upper side of the rubber filling ring, the small hydraulic telescopic rods are horizontally and fixedly connected with the front, rear, left and right outer walls of a connecting cylinder through a supporting frame, the first liquid induction switches are installed at the outer wall of the upper end of the connecting cylinder in an embedded mode around equal distances and are electrically connected with contraction control circuits of all the first liquid induction switches, a countdown starting switch is fixedly installed below the position where each small hydraulic telescopic rod is located, the countdown starting switch is electrically connected with an extension control circuit of the small hydraulic telescopic rod, the connecting top block is fixedly connected with the telescopic end of the small hydraulic telescopic rod, the first rubber is fixedly connected with the connecting top block, meanwhile, the first rubber is embedded in the side wall of the connecting cylinder, and the position where the first rubber is located is communicated with the bottom position of the rubber filling ring, the drainage channel is vertically arranged in the side wall of the connecting cylinder below the position of the first rubber sealing plug, the lower end of the drainage channel is communicated with the inside of the valve body, the piston air cylinder is connected at the front, back, left and right positions outside the upper end of the connecting cylinder, the first piston block is connected in the piston air cylinder in a matching way, the push rod is vertically and fixedly connected to the lower side of the first piston block, a linkage rod is movably connected between the lower end of the push rod and the telescopic end of the small hydraulic telescopic rod at the lower side position, the air outlet pipe head is vertically arranged at the upper end of the piston air cylinder, the first one-way air valve is fixedly arranged at the upper end of the air outlet pipe head, the air cavity is vertically arranged in the front, back, left and right side walls of the top sleeve, the air pipe is fixedly connected between the air outlet pipe head and the upper port of the air cavity, the second piston block is connected in the air cavity in a matching manner, the ejector rod is vertically and fixedly connected to the lower side of the second piston block, the top ring is embedded in the bottom end face of the top sleeve, the position of the top ring is communicated with the lower end of the air cavity, the rubber filling ring is a compressible elastic hollow body, the front side and the rear side of the valve body are respectively provided with a connecting flange body, connecting screw holes are equidistantly formed in the connecting flange body, a quick repairing mechanism is arranged on the connecting flange body and comprises an elastic metal convex ring, a heating wire, a turnover sealing plug, a notch, a rubber cylinder, a sprayer, second rubber, a connecting vertical rod, a pull handle, a pressure sensing switch, a first elastic rubber cover, a limiting ring, a bar-shaped clamping plate, an elastic metal hammering ring and an elastic metal conducting rod, the elastic metal convex ring is fixedly connected to the edge of the outer ring of the connecting flange body in a surrounding manner, the heating wire is embedded in the side wall of the elastic metal convex ring, the turnover flange is arranged at the edge of the elastic metal convex ring, the gap is arranged at the top of the turnover flange, the rubber tube is vertically arranged right above the gap, the spray head is vertically arranged at the lower end of the rubber tube, the second rubber sealing plug is arranged at the inner side of the upper end of the spray head in a matching way, the connecting vertical rod is vertically and fixedly connected to the upper side of the second rubber sealing plug, the upper end of the connecting vertical rod penetrates out of the upper end of the rubber tube, the pull handle is fixedly connected to the upper end of the connecting vertical rod, the first elastic rubber cover is wrapped at the upper end of the connecting vertical rod, the rubber tube is fixedly connected with the first elastic rubber cover, the pressure sensing switch is fixedly arranged on the side wall of the pull handle, and meanwhile, the pressure sensing switch is electrically connected with the heating wire, the spacing ring encircles the setting and is in connect montant upper end position, bar splint through resilience hinge slope swing joint be in connect the montant upper end, elastic metal hammering ring encircles the setting and is in the side around the valve body, and elastic metal hammering ring passes through elastic metal conduction pole fixed connection the elastic metal bulge loop.
Preferably, the bottom of valve body is provided with suggestion mechanism, suggestion mechanism includes water receiving box, bell jar, second liquid response switch, connects mainboard, warning light and vibrator, water receiving box fixed connection is in the bottom of valve body, the bell jar is evenly seted up the interior bottom surface of water receiving box, every the equal fixed mounting in interior bottom of bell jar has the second liquid response switch, evenly install warning light, every on the connection mainboard the warning light with all of valve body bottom the equal electricity of second liquid response switch is connected, vibrator fixed mounting is in connect on the mainboard, and the vibrator is with all the second liquid response switch electricity is connected.
Preferably, the valve rod is close to the upper end position and surrounds the fixedly connected with block cover, a block cylinder is arranged below the position where the block cover is located, the block cylinder is fixedly connected with the upper end of the connecting cylinder, meanwhile, an annular through hole is formed between the block cylinder and the block cover, and the vent pipe penetrates through the annular through hole.
Preferably, the outer wall of the middle position of the connecting cylinder is fixedly connected with an annular receiving box in a surrounding mode.
Preferably, a second elastic rubber cover is fixedly connected between the connecting top block and the outer wall of the connecting cylinder.
Preferably, the width of the connecting top block is larger than that of the first rubber sealing plug.
Preferably, the linkage rod and the push rod are made of hard steel materials.
A method for using a butterfly valve comprises the following specific steps:
when the rubber filling ring is aged and damaged and leaks, leaked water overflows from the upper end of the connecting cylinder outwards, at the moment, the first liquid induction switch induces and enables the small hydraulic telescopic rods at all positions to contract, then the small hydraulic telescopic rods drive the first rubber sealing plugs to slide towards the outer sides of the connecting cylinder through the connecting ejector blocks, before the first rubber sealing plugs are completely separated from the connecting cylinder, the connecting ejector blocks just touch the countdown starting switches at the outer sides, the countdown starting switches start to enable the extension control circuits of the small hydraulic telescopic rods to be in a ready state, meanwhile, the drainage channel ports at the lower side positions of the first rubber sealing plugs are opened, water permeating into the connecting cylinder conveniently flows back into the valve body through the drainage channels, and further corrosion and damage caused by the fact that the rubber filling ring and the inner side wall of the connecting cylinder are soaked by water for a long time are avoided, meanwhile, when the countdown starting switch counts down to reach the corresponding time, the small hydraulic telescopic rod starts to extend, drives the first rubber sealing plug to reset, and closes the side wall of the connecting cylinder again;
secondly, when the small hydraulic telescopic rod is contracted, the small hydraulic telescopic rod pushes a push rod upwards through a linkage rod, the push rod pushes a first piston block upwards, the first piston block extrudes air in a piston air cylinder from an air outlet pipe head and guides the air into an air cavity through an air vent pipe, then a second piston block in the air cavity slides downwards due to the increase of air pressure, a jacking ring is pushed downwards through a mandril, the jacking ring horizontally moves downwards to extrude a rubber filling ring, the rubber filling ring is a compressible elastic hollow body and is convenient to expand and extend transversely after being compressed, the inner wall of the connecting cylinder is further jacked tightly to reseal, and when the small hydraulic telescopic rod is extended and reset, the linkage rod pulls the first piston block to descend and reset, so that the piston air cylinder sucks air again from the outside through a first one-way air valve;
thirdly, when the butt joint position of the connecting flange body of the valve body and the butt joint flange of the external water pipeline is aged and has leakage, a user holds the pull handle to pull the connecting vertical rod upwards, the connecting vertical rod drives the second rubber sealing plug to separate from the spray head to open the spray head, meanwhile, in the process of lifting the connecting vertical rod upwards, due to the position limitation of the limiting ring, the strip-shaped clamping plates distributed around the connecting vertical rod are closed to the middle to extrude the rubber cylinder, viscous rubber in the connecting vertical rod is sprayed out from the spray head and flows into an annular cavity enclosed by the butt joint flange, the turnover retaining edge and the elastic metal convex ring, and when the user pulls the pull handle, a pressure induction switch arranged on the outer wall of the connecting vertical rod is triggered to electrify the electric heating wire to heat the rubber entering the annular cavity and promote the rubber to flow and fill the whole annular cavity, therefore, the connection position of the connecting flange body and the butt flange is sealed through glue, the valve body does not need to be disassembled to replace a related sealing element, when glue is injected, the elastic metal hammering ring is beaten through a hammer and generates vibration, the vibration is conducted to the elastic metal convex ring through the elastic metal conducting rod, and the elastic metal convex ring vibrates along with the vibration to promote the injected glue to flow and fill the whole annular cavity.
Compared with the prior art, the invention has the beneficial effects that:
1. when the rubber filling ring is aged and damaged to cause leakage, the leaked water overflows from the upper end of the connecting cylinder, the first liquid induction switch induces to contract the small hydraulic telescopic rods at all positions, then the small hydraulic telescopic rod drives the first rubber sealing plug to slide towards the outer side of the connecting cylinder through the connecting jacking block, before the first rubber sealing plug is completely separated from the connecting cylinder, the countdown starting switch is triggered, so that the extension control circuit of the small hydraulic telescopic rod is in a ready state, the small hydraulic telescopic rod is conveniently controlled to extend and reset after corresponding time, after the first rubber sealing plug slides, the port of the drainage channel at the lower side is opened, so that water permeating into the connecting cylinder conveniently flows back into the valve body through the drainage channel, and the rubber filling ring and the inner side wall of the connecting cylinder are prevented from being further corroded and damaged due to long-time soaking of water;
2. when the small hydraulic telescopic rod is contracted, the small hydraulic telescopic rod pushes the push rod upwards through the linkage rod, the push rod pushes the first piston block upwards, the first piston block extrudes air in the piston air cylinder from the air outlet pipe head and enters the air cavity, then the second piston block in the air cavity drives the top ring to move downwards due to the increase of air pressure, the top ring extrudes the rubber filling ring to enable the rubber filling ring to expand and extend transversely, the inner wall of the connecting cylinder is further tightly jacked, and sealing is carried out again;
3. when the butt joint position of the connecting flange body of the valve body and the butt joint flange of the external water pipeline has leakage due to aging, a user holds the pull handle to pull and draw the connecting vertical rod upwards, then the strip-shaped clamping plates distributed around the connecting flange body are closed to the middle to extrude the rubber cylinder due to the position limitation of the limiting ring, the extruded rubber cylinder is extruded by the extruded rubber cylinder, viscous rubber in the rubber cylinder is sprayed out from the spray head and flows into an annular cavity formed by the butt joint flange, the turnover retaining edge and the elastic metal convex ring, the pressure induction switch enables the electric heating wire to be electrified and operated when the user pulls the pull handle, the rubber entering the annular cavity is heated to promote the rubber to flow and fill the whole annular cavity, and when the rubber is injected, the elastic metal hammering ring is knocked by a hammer to enable the elastic metal convex ring to vibrate along with the elastic metal convex ring to promote the injected rubber to flow, therefore, the connecting position of the connecting flange body and the butt flange is quickly sealed through the colloid, and the valve body does not need to be disassembled to replace a related sealing element.
Drawings
FIG. 1 is a schematic view of an overall structure of a butterfly valve according to the present invention;
FIG. 2 is a schematic structural view of an automatic pressurization sealing structure in a butterfly valve according to the present invention;
FIG. 3 is a schematic bottom end view of a top sleeve and a top ring of a butterfly valve according to the present invention;
FIG. 4 is a schematic cross-sectional view of a rubber packing ring in a butterfly valve according to the present invention;
FIG. 5 is a schematic left-view structural diagram of the mating connection of the butterfly valve center prompt mechanism, the quick repair mechanism, and the valve body according to the present invention;
FIG. 6 is a schematic left-view structural view of the connection between the turndown flange, the elastic metal collar and the connecting flange body of the butterfly valve of the present invention;
fig. 7 is a schematic structural view of the fitting connection of the bar-shaped clamping plate, the connecting vertical rod and the limiting ring in the butterfly valve.
In the figure: 1. a valve body; 2. a connecting cylinder; 3. a valve stem; 4. a valve plate; 5. an automatic pressurization closure structure; 6. a first one-way air valve; 7. a piston cylinder; 8. a first piston block; 9. a linkage rod; 10. a breather pipe; 11. a second one-way air valve; 12. a blocking cover; 13. a blocking cylinder; 14. an air cavity; 15. a second piston block; 16. a top ring; 17. jacking and sleeving; 18. a first liquid sensing switch; 19. an annular receiving box; 20. a first rubber sealing plug; 21. a small hydraulic telescopic rod; 22. a countdown start switch; 23. a second elastic rubber cover; 24. a rubber packing ring; 25. a push rod; 26. a drainage channel; 27. connecting the flange body; 28. a water receiving box; 29. a tapered groove; 30. a second liquid sensing switch; 31. connecting the main board; 32. a warning light; 33. a prompting mechanism; 34. a water pipeline; 35. butting flanges; 36. an elastic metal convex ring; 37. an elastic metal hammer ring; 38. a spray head; 39. a rubber cylinder; 40. a strip-shaped splint; 41. a pressure sensitive switch; 42. pulling a handle; 43. a first elastic rubber boot; 44. a limiting ring; 45. a second rubber sealing plug; 46. connecting the vertical rods; 47. an electric heating wire; 48. a connecting screw hole; 49. a notch; 50. folding the flanges; 51. a quick repair mechanism; 52. an annular port; 53. an air outlet pipe head; 54. a top rod; 55. an elastic metal conductive rod; 56. a vibrator; 57. and connecting the top block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, the present invention provides a technical solution: a butterfly valve comprises a valve body 1, wherein a connecting cylinder 2 is vertically arranged at the top of the valve body 1, a valve plate 4 is arranged in the valve body 1, a valve rod 3 is vertically and fixedly connected to the upper side of the valve plate 4, the valve rod 3 is rotatably inserted into the connecting cylinder 2, and the upper end of the valve rod 3 is used for fixedly connecting a rotary driving part or a rotating handle, so that a user can conveniently operate the valve rod 3 to drive the valve plate 4 to rotate and control the circulation condition of the valve body 1; the connecting cylinder 2 is provided with an automatic pressurizing sealing structure 5, the automatic pressurizing sealing structure 5 comprises a first liquid induction switch 18, a rubber filling ring 24, a top sleeve 17, a small hydraulic telescopic rod 21, a countdown starting switch 22, a connecting top block 57, a first rubber sealing plug 20, a water drainage channel 26, a linkage rod 9, a piston air cylinder 7, a first piston block 8, a push rod 25, an air outlet pipe head 53, a first one-way air valve 6, an air vent pipe 10, a second one-way air valve 11, an air cavity 14, a second piston block 15, a top rod 54 and a top ring 16, the rubber filling ring 24 is sleeved on the valve rod 3, the rubber filling ring 24 is positioned in the connecting cylinder 2, the rubber filling ring 24 is a sealing element for the rotating position of the valve rod 3 of the butterfly valve in the prior art, the top sleeve 17 is fixedly arranged at the upper end of the connecting cylinder 2 through screws, the top sleeve 17 is abutted against the upper side of the rubber filling ring 24, the top sleeve, the sealing function is conveniently realized; the small hydraulic telescopic rod 21 is horizontally and fixedly connected with the front, rear, left and right outer walls of the connecting cylinder 2 through a support frame, the first liquid induction switches 18 are embedded and installed at the outer wall of the upper end of the connecting cylinder 2 around equal distances, the first liquid induction switches 18 are electrically connected with contraction control circuits of all the first liquid induction switches 18, a countdown starting switch 22 is fixedly installed below the position of each small hydraulic telescopic rod 21, the countdown starting switch 22 is electrically connected with an extension control circuit of the small hydraulic telescopic rod 21, a connecting top block 57 is fixedly connected with the telescopic end of the small hydraulic telescopic rod 21, a first rubber sealing plug 20 is fixedly connected with the connecting top block 57, meanwhile, the first rubber sealing plug 20 is embedded in the side wall of the connecting cylinder 2, the position of the first rubber sealing plug 20 is communicated with the bottom position of the rubber filling ring 24, and a drainage channel 26 is vertically arranged in the side wall of the connecting cylinder 2 below the position of the first rubber sealing plug, the lower end of the drainage channel 26 is communicated with the inside of the valve body 1, the piston air cylinder 7 is connected at the front, rear, left and right positions outside the upper end of the connecting cylinder 2, the first piston block 8 is connected in the piston air cylinder 7 in a matching way, the push rod 25 is vertically and fixedly connected at the lower side of the first piston block 8, the lower end of the push rod 25 is movably connected with the telescopic end head of the small hydraulic telescopic rod 21 at the lower side through a hinge to form a linkage rod 9, the air outlet pipe head 53 is vertically arranged at the upper end of the piston air cylinder 7, the first one-way air valve 6 is fixedly arranged at the upper end of the air outlet pipe head 53, the ventilation flow direction of the first one-way air valve 6 is that the outside of the air outlet pipe head 53 flows inwards, the air cavity 14 is vertically arranged in the front, rear, left and right side walls of the top sleeve 17, the ventilation pipe 10 is fixedly connected between the air outlet pipe head, the second piston block 15 is connected in the air cavity 14 in a matching manner, the ejector rod 54 is vertically and fixedly connected to the lower side of the second piston block 15, the top ring 16 is embedded in the bottom end face of the top sleeve 17, meanwhile, the position of the top ring 16 is communicated with the lower end of the air cavity 14, the rubber filling ring 24 is a compressible elastic hollow body, when the rubber filling ring 24 is aged and damaged and leaks, leaked water overflows from the upper end of the connecting cylinder 2 outwards, at the moment, the first liquid induction switch 18 induces and enables the small hydraulic telescopic rod 21 at each position to contract, then the small hydraulic telescopic rod 21 drives the first rubber sealing plug 20 to slide towards the outer side of the connecting cylinder 2 through the connecting top block 57, before the first rubber sealing plug 20 is completely separated from the connecting cylinder 2, the connecting top block 57 is just collided with the countdown starting switch 22 at the outer side, and the countdown starting switch 22 starts to enable the extension control circuit of the small hydraulic telescopic rod 21 to be in a ready state, meanwhile, the port of the drainage channel 26 at the lower side of the first rubber sealing plug 20 is opened, so that water permeating into the connecting cylinder 2 conveniently flows back into the valve body 1 through the drainage channel 26, further corrosion damage caused by long-time soaking of the rubber filling ring 24 and the inner side wall of the connecting cylinder 2 is avoided, meanwhile, when the countdown starting switch 22 counts down to reach corresponding time, the small hydraulic telescopic rod 21 starts to extend, the first rubber sealing plug 20 is driven to reset, the side wall of the connecting cylinder 2 is closed again, and when the small hydraulic telescopic rod 21 contracts, the small hydraulic telescopic rod 21 pushes the push rod 25 upwards through the linkage rod 9, the push rod 25 pushes the first piston block 8 upwards, the first piston block 8 pushes air in the piston air cylinder 7 out from the air outlet pipe head 53 and is guided into the air cavity 14 through the vent pipe 10, and then the second piston block 15 in the air cavity 14 slides downwards due to the increase of air pressure, the ejector ring 16 is pushed downwards through the ejector rod 54, the ejector ring 16 translates downwards to extrude the rubber filling ring 24, the rubber filling ring 24 is a compressible elastic hollow body, and is convenient to expand and extend transversely after being compressed, the inner wall of the connecting cylinder 2 is further tightly pushed to seal again, and when the small hydraulic telescopic rod 21 extends and resets, the first piston block 8 is pulled to descend and reset through the linkage rod 9, so that the piston air cylinder 7 sucks air again from the outside through the first one-way air valve 6; the front side and the rear side of the valve body 1 are both provided with connecting flange bodies 27, and the connecting flange bodies 27 are used for being butted with a butting flange 35 of an external water pipeline 34 so as to realize that the valve body 1 is arranged between the water pipelines 34; the connecting flange body 27 is equidistantly provided with connecting screw holes 48, the connecting flange body 27 is provided with a quick repairing mechanism 51, the quick repairing mechanism 51 comprises an elastic metal convex ring 36, an electric heating wire 47, a turnover flange 50, a gap 49, a rubber barrel 39, a spray head 38, a second rubber sealing plug 45, a connecting vertical rod 46, a pull handle 42, a pressure sensing switch 41, a first elastic rubber cover 43, a limiting ring 44, a strip-shaped clamping plate 40, an elastic metal hammering ring 37 and an elastic metal conducting rod 55, the elastic metal convex ring 36 is fixedly connected to the edge of the outer ring of the connecting flange body 27 in a surrounding manner, when the connecting flange body 27 is butted with the butting flange 35 of the external water pipeline 34, the elastic metal convex ring 36 is aligned with the butting flange 35, the electric heating wire 47 is embedded in the side wall of the elastic metal convex ring 36, the turnover flange 50 is arranged at the edge of the elastic metal convex ring 36, and when the connecting flange body 27 is butted with the butting flange 35 of the water pipeline 34, the butt flange 35, the folding flange 50 and the elastic metal convex ring 36 enclose an annular cavity; the notch 49 is formed in the top of the turnover rib 50, the rubber barrel 39 is vertically arranged right above the notch 49, the rubber barrel 39 is made of elastic rubber, the spray head 38 is vertically arranged at the lower end of the rubber barrel 39, and viscous rubber is filled in the rubber barrel 39; the second rubber sealing plug 45 is arranged on the inner side of the upper end of the spray head 38 in a matching manner, the connecting vertical rod 46 is vertically and fixedly connected to the upper side of the second rubber sealing plug 45, the upper end of the connecting vertical rod 46 penetrates out of the upper end of the rubber cylinder 39, the pull handle 42 is fixedly connected to the upper end of the connecting vertical rod 46, the first elastic rubber cover 43 is wrapped at the upper end of the connecting vertical rod 46, the first elastic rubber cover 43 is fixedly connected with the rubber cylinder 39, the first elastic rubber cover 43 is used for sealing the upper end of the rubber cylinder 39 at the position where the connecting vertical rod 46 penetrates, the pressure sensing switch 41 is fixedly arranged on the side wall of the pull handle 42, meanwhile, the pressure sensing switch 41 is electrically connected with the electric heating wire 47, the limiting ring 44 is arranged at the upper end of the connecting vertical rod 46 in a surrounding manner, the limiting ring 44 is fixedly connected with the connecting flange body 27, the bar-shaped, the elastic metal hammering ring 37 is arranged around the front and back sides of the valve body 1, and the elastic metal hammering ring 37 is fixedly connected with the elastic metal convex ring 36 through the elastic metal conducting rod 55, when the butt joint position of the connecting flange body 27 of the valve body 1 and the butt joint flange 35 of the external water pipeline 34 is aged and leakage occurs, a user grasps the pull handle 42 to pull the connecting vertical rod 46 upwards, the connecting vertical rod 46 drives the second rubber sealing plug 45 to separate from the spray head 38, so that the connecting vertical rod 46 is opened, meanwhile, in the process of lifting the connecting vertical rod 46 upwards, due to the position limitation of the limiting ring 44, the strip-shaped clamping plates 40 distributed around are led to collect the extrusion rubber barrel 39 towards the middle, the extruded rubber barrel 39 is extruded, viscous rubber inside the extrusion rubber barrel is sprayed from the spray head 38 and flows into an annular cavity formed by the butt joint flange 35, the turnover blocking edge 50 and the elastic metal convex ring 36, and when the user pulls the pull handle, the pressure sensing switch 41 installed on the outer wall is triggered to enable the electric heating wire 47 to be electrified and operated to heat the colloid entering the annular cavity to promote the colloid to flow and fill the whole annular cavity, so that the connection position of the connecting flange body 27 and the butting flange 35 is sealed through the colloid, the valve body 1 is not required to be disassembled to replace a related sealing member, when the colloid is injected, the elastic metal hammering ring 37 is hammered through a hammer, the elastic metal hammering ring 37 generates vibration, the vibration is transmitted to the elastic metal convex ring 36 through the elastic metal transmission rod 55, and the elastic metal convex ring 36 vibrates along with the vibration to promote the injected colloid to flow and fill the whole annular cavity.
The bottom of the valve body 1 is provided with a prompting mechanism 33, the prompting mechanism 33 comprises a water receiving box 28, conical grooves 29, second liquid induction switches 30, a connecting mainboard 31, warning lamps 32 and a vibrator 56, the water receiving box 28 is fixedly connected to the bottom of the valve body 1, the conical grooves 29 are uniformly formed in the inner bottom surface of the water receiving box 28, the inner bottom of each conical groove 29 is fixedly provided with a second liquid induction switch 30, the connecting mainboard 31 is arranged in an environment which is easy to see outside, the connecting mainboard 31 is uniformly provided with the warning lamps 32, each warning lamp 32 corresponds to the valve body 1 at one position, all the warning lamps 32 are numbered according to a sequence, each warning lamp 32 is electrically connected with all the second liquid induction switches 30 at the bottom of the valve body 1 through power supply leads, the vibrator 56 is fixedly arranged on the connecting mainboard 31, and the vibrator 56 is electrically connected with all the second liquid induction switches 30, when the valve body 1 of a certain position takes place the seepage, the water of seepage just flows down and falls in water receiving box 28, then flows to in the bell jar 29, and second liquid response switch 30 just produces the response and makes the warning light 32 of installing corresponding number on connecting mainboard 31 put light like this, and vibrator 56 starts simultaneously, makes things convenient for relevant personnel to discover that the seepage appears and in time handle in the valve body 1 of corresponding position.
2 intermediate position outer wall departments of connecting cylinder encircle fixedly connected with annular and hold box 19, and annular holds box 19 and is used for catching the water that gets off from the 2 upside seepage of connecting cylinder, makes things convenient for the maintainer to inspect whether the condition of leaking appears.
A second elastic rubber cover 23 is fixedly connected between the connecting top block 57 and the outer wall of the connecting cylinder 2, and the second elastic rubber cover 23 is used for closing the side wall of the connecting cylinder 2 at the embedding position of the first rubber sealing plug 20.
The connecting top block 57 is wider than the first rubber sealing plug 20.
The linkage rod 9 and the push rod 25 are made of hard steel materials, so that bending is avoided.
A method for using a butterfly valve comprises the following specific steps:
when the rubber filling ring 24 is aged and damaged and leaks, leaked water overflows from the upper end of the connecting cylinder 2, at the moment, the first liquid induction switch 18 induces the small hydraulic telescopic rod 21 at each position to contract, then the small hydraulic telescopic rod 21 drives the first rubber sealing plug 20 to slide towards the outer side of the connecting cylinder 2 through the connecting top block 57, before the first rubber sealing plug 20 is completely separated from the connecting cylinder 2, the connecting top block 57 just props against the countdown starting switch 22 at the outer side, the countdown starting switch 22 starts to enable the extension control circuit of the small hydraulic telescopic rod 21 to be in a ready state, meanwhile, the port of the drainage channel 26 at the lower side of the first rubber sealing plug 20 is opened, the water permeating into the connecting cylinder 2 conveniently flows back into the valve body 1 through the drainage channel 26, and further corrosion and damage caused by long-time soaking of the rubber filling ring 24 and the inner side wall of the connecting cylinder 2 are avoided, meanwhile, when the countdown starting switch 22 counts down to reach the corresponding time, the small hydraulic telescopic rod 21 starts to extend, drives the first rubber sealing plug 20 to reset, and closes the side wall of the connecting cylinder 2 again;
secondly, when the small hydraulic telescopic rod 21 is contracted, the small hydraulic telescopic rod 21 pushes the push rod 25 upwards through the linkage rod 9, the push rod 25 pushes the first piston block 8 upwards, the first piston block 8 presses air in the piston air cylinder 7 out from the air outlet pipe head 53 and guides the air into the air cavity 14 through the air pipe 10, then the second piston block 15 in the air chamber 14 slides downward due to the increase of the air pressure, the top ring 16 is pushed downward by the ejector pin 54, the top ring 16 is translated downward to press the rubber-filled ring 24, because the rubber filling ring 24 is a compressible elastic hollow body, the rubber filling ring can be conveniently expanded and extended transversely after being compressed, further tightly push the inner wall of the connecting cylinder 2 for resealing, when the small hydraulic telescopic rod 21 extends and resets, the first piston block 8 is pulled to descend and reset through the linkage rod 9, so that the piston air cylinder 7 sucks air from the outside through the first one-way air valve 6 again;
thirdly, when the butt joint position of the connecting flange body 27 of the valve body 1 and the butt joint flange 35 of the external water pipeline 34 is aged and has leakage, the user holds the pull handle 42 to pull the connecting vertical rod 46 upwards, the connecting vertical rod 46 drives the second rubber sealing plug 45 to separate from the spray head 38, so that the connecting vertical rod is opened, meanwhile, in the process of lifting the connecting vertical rod 46 upwards, due to the position limitation of the limiting ring 44, the strip-shaped clamping plates 40 which are distributed around are closed to the middle to extrude the rubber barrel 39, the extruded rubber barrel 39, the viscous rubber in the rubber barrel is sprayed out from the spray head 38 and flows into an annular cavity which is surrounded by the butt joint flange 35, the turnover retaining edge 50 and the elastic metal convex ring 36, and when the pull handle 42 is pulled by the user, the pressure induction switch 41 arranged on the outer wall of the butt joint flange body 27 and the butt joint flange 35 of the external water pipeline 34 is triggered, so that the, the flow of the glue is promoted to fill the whole annular cavity, so that the connection position of the connecting flange body 27 and the butting flange 35 is sealed by the glue without disassembling the valve body 1 and replacing the related sealing member, when the glue is injected, the elastic metal hammering ring 37 generates vibration by hammering the elastic metal hammering ring 37, the vibration is transmitted to the elastic metal convex ring 36 through the elastic metal transmission rod 55, and the elastic metal convex ring 36 vibrates along with the vibration to promote the flow of the injected glue to fill the whole annular cavity.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A butterfly valve, includes valve body (1), its characterized in that: the vertical connecting cylinder (2) that is provided with in top of valve body (1), valve plate (4) have been set to the inside of valve body (1), the vertical fixedly connected with valve rod (3) of valve plate (4) upside, valve rod (3) rotate and alternate in connecting cylinder (2), connecting cylinder (2) department is provided with automatic pressurization enclosed construction (5), automatic pressurization enclosed construction (5) include first liquid inductive switch (18), rubber packing ring (24), top cover (17), small-size hydraulic telescoping rod (21), countdown starting switch (22), connect kicking block (57), first rubber (20), drainage channel (26), gangbar (9), piston inflator (7), first piston block (8), push rod (25), outlet duct head (53), first one-way air valve (6), breather pipe (10), second one-way air valve (11), The pneumatic valve comprises an air cavity (14), a second piston block (15), a push rod (54) and a top ring (16), wherein a rubber filling ring (24) is sleeved on a valve rod (3), the rubber filling ring (24) is positioned in a connecting cylinder (2), the top sleeve (17) is fixedly installed at the upper end of the connecting cylinder (2) through screws, the top sleeve (17) abuts against the upper side of the rubber filling ring (24), small hydraulic telescopic rods (21) are horizontally and fixedly connected to the front, rear, left and right outer walls of the connecting cylinder (2) through a support frame, first liquid induction switches (18) are embedded and installed at the outer wall of the upper end of the connecting cylinder (2) at equal intervals in a surrounding mode, the first liquid induction switches (18) are electrically connected with all contraction control circuits of the first liquid induction switches (18), and countdown starting switches (22) are fixedly installed below the position of each small hydraulic telescopic rod (21), the countdown starting switch (22) is electrically connected with an extension control circuit of the small hydraulic telescopic rod (21), the connecting top block (57) is fixedly connected with the telescopic end of the small hydraulic telescopic rod (21), the first rubber sealing plug (20) is fixedly connected with the connecting top block (57), meanwhile, the first rubber sealing plug (20) is embedded in the side wall of the connecting cylinder (2), the position of the first rubber sealing plug (20) is communicated with the bottom position of the rubber filling ring (24), the sealing plug drainage channel (26) is vertically arranged in the side wall of the connecting cylinder (2) below the position of the first rubber sealing plug (20), the lower end of the drainage channel (26) is communicated with the inside of the valve body (1), and the piston (7) is connected at the front, rear, left and right positions outside the upper end of the connecting cylinder (2), the first piston block (8) is connected in a matched manner in the piston air cylinder (7), the push rod (25) is vertically and fixedly connected to the lower side of the first piston block (8), the lower end of the push rod (25) and the lower side of the push rod are movably connected with a linkage rod (9) between the telescopic ends of the small hydraulic telescopic rod (21), the air outlet pipe head (53) is vertically arranged at the upper end of the piston air cylinder (7), the first one-way air valve (6) is fixedly arranged at the upper end of the air outlet pipe head (53), the air cavity (14) is vertically arranged in the front, back, left and right side walls of the top sleeve (17), the air vent pipe (10) is fixedly connected between the air outlet pipe head (53) and the upper end opening of the air cavity (14), the second one-way air valve (11) is fixedly arranged at the connecting position of the air vent pipe (10) and the, the second piston block (15) is connected in the air cavity (14) in a matched manner, the ejector rod (54) is vertically and fixedly connected to the lower side of the second piston block (15), the top ring (16) is embedded into the bottom end face of the top sleeve (17), the top ring (16) is communicated with the lower end of the air cavity (14), the rubber filling ring (24) is a compressible elastic hollow body, the front side and the rear side of the valve body (1) are provided with connecting flange bodies (27), connecting screw holes (48) are equidistantly formed in the connecting flange bodies (27), a quick repairing mechanism (51) is arranged on the connecting flange bodies (27), and the quick repairing mechanism (51) comprises an elastic metal convex ring (36), an electric heating wire (47), a turnover rib (50), a notch (49), a rubber sleeve (39), a spray head (38), a second rubber sealing plug (45), Connect montant (46), pull handle (42), pressure-sensitive switch (41), first elastic rubber cover (43), spacing ring (44), bar splint (40), elastic metal hammering ring (37) and elastic metal conduction pole (55), elastic metal bulge loop (36) encircle fixed connection in connect flange body (27) outer lane edge, heating wire (47) are buried underground in elastic metal bulge loop (36) lateral wall, turn over flange (50) and set up in the edge of elastic metal bulge loop (36), breach (49) are seted up in turn over the top of flange (50), packing element (39) are vertical to be set up directly over breach (49), shower nozzle (38) are vertical to be set up the lower extreme of packing element (39), second rubber sealing plug (45) cooperation sets up shower nozzle (38) upper end inboard, the connecting vertical rod (46) is vertically and fixedly connected to the upper side of the second rubber sealing plug (45), the upper end of the connecting vertical rod (46) penetrates out of the upper end of the rubber sleeve (39), the pull handle (42) is fixedly connected to the upper end of the connecting vertical rod (46), the first elastic rubber cover (43) is wrapped at the upper end of the connecting vertical rod (46), the first elastic rubber cover (43) is fixedly connected with the rubber sleeve (39), the pressure sensing switch (41) is fixedly mounted on the side wall of the pull handle (42), the pressure sensing switch (41) is electrically connected with the heating wire (47), the limiting ring (44) is arranged at the upper end of the connecting vertical rod (46) in a surrounding manner, the bar-shaped clamping plate (40) is movably connected to the upper end of the connecting vertical rod (46) in an inclined manner through a rebound hinge, and the elastic metal hammering ring (37) is arranged at the front side and the rear side of the valve body (1) in a surrounding manner, and the elastic metal hammer ring (37) is fixedly connected to the elastic metal male ring (36) through the elastic metal conductive rod (55).
2. A butterfly valve in accordance with claim 1, wherein: a prompting mechanism (33) is arranged at the bottom of the valve body (1), the prompting mechanism (33) comprises a water receiving box (28), a conical groove (29), a second liquid induction switch (30), a connecting main board (31), a warning lamp (32) and a vibrator (56), the water receiving box (28) is fixedly connected to the bottom of the valve body (1), the conical grooves (29) are uniformly formed in the inner bottom surface of the water receiving box (28), the second liquid sensing switch (30) is fixedly mounted on the inner bottom of each conical groove (29), warning lamps (32) are uniformly arranged on the connecting main board (31), each warning lamp (32) is electrically connected with all the second liquid induction switches (30) at the bottom of the valve body (1), the vibrator (56) is fixedly arranged on the connecting main board (31), and the vibrator (56) is electrically connected to all of the second liquid sensing switches (30).
3. A butterfly valve in accordance with claim 1, wherein: the valve rod (3) is close to the upper end position and surrounds a fixedly connected with blocking cover (12), a blocking cylinder (13) is arranged below the position where the blocking cover (12) is located, the blocking cylinder (13) is fixedly connected with the upper end of the connecting cylinder (2), meanwhile, an annular through hole (52) is formed between the blocking cylinder (13) and the blocking cover (12), and the vent pipe (10) penetrates through the annular through hole (52).
4. A butterfly valve in accordance with claim 1, wherein: the outer wall of the middle position of the connecting cylinder (2) is fixedly connected with an annular bearing box (19) in a surrounding mode.
5. A butterfly valve in accordance with claim 1, wherein: and a second elastic rubber cover (23) is fixedly connected between the connecting top block (57) and the outer wall of the connecting cylinder (2).
6. A butterfly valve in accordance with claim 1, wherein: the width of the connecting top block (57) is larger than that of the first rubber sealing plug (20).
7. A butterfly valve in accordance with claim 1, wherein: the linkage rod (9) and the push rod (25) are made of hard steel materials.
8. The use method of the butterfly valve according to claim 1, comprising the following specific steps:
when the rubber filling ring (24) is aged and damaged to cause leakage, leaked water overflows from the upper end of the connecting cylinder (2), at the moment, the first liquid induction switch (18) induces to cause the small hydraulic telescopic rod (21) at each position to contract, then the small hydraulic telescopic rod (21) drives the first rubber sealing plug (20) to slide towards the outer side of the connecting cylinder (2) through the connecting top block (57), before the first rubber sealing plug (20) is completely separated from the connecting cylinder (2), the connecting top block (57) just collides against the countdown starting switch (22) at the outer side, the countdown starting switch (22) starts to cause the extension control circuit of the small hydraulic telescopic rod (21) to be in a ready state, and simultaneously, the port of the drainage channel (26) at the lower side position of the first rubber sealing plug (20) is opened, the water permeating into the connecting cylinder (2) conveniently flows back into the valve body (1) through the drainage channel (26), further corrosion and damage caused by soaking of water in the rubber filling ring (24) and the inner side wall of the connecting cylinder (2) for a long time are avoided, and meanwhile, when the countdown starting switch (22) counts down for a corresponding time, the small hydraulic telescopic rod (21) starts to extend, the first rubber sealing plug (20) is driven to reset, and the side wall of the connecting cylinder (2) is sealed again;
secondly, when the small hydraulic telescopic rod (21) contracts, the small hydraulic telescopic rod (21) upwards pushes the push rod (25) through the linkage rod (9), the push rod (25) upwards pushes the first piston block (8), the first piston block (8) presses air in the piston air cylinder (7) out from the air outlet pipe head (53), the air is guided into the air cavity (14) through the air pipe (10), then the second piston block (15) in the air cavity (14) downwards slides due to the increase of air pressure, the ejector rod (54) downwards pushes the ejector ring (16), the ejector ring (16) downwards horizontally moves and extrudes the rubber filling ring (24), the rubber filling ring (24) is a compressible elastic hollow body, the transverse expansion and extension after compression are facilitated, the inner wall of the connecting cylinder (2) is further tightly pushed, sealing is carried out again, and when the small hydraulic telescopic rod (21) extends and resets, the first piston block (8) is pulled to descend and reset through the linkage rod (9), so that the piston air cylinder (7) sucks air again from the outside through the first one-way air valve (6);
thirdly, when the butt joint position of the connecting flange body (27) of the valve body (1) and the butt joint flange (35) of the external water pipeline (34) is aged and leaked, a user holds the pull handle (42) to pull the connecting vertical rod (46) upwards, the connecting vertical rod (46) drives the second rubber sealing plug (45) to separate from the spray head (38) to open the spray head, meanwhile, in the process that the connecting vertical rod (46) is lifted upwards, due to the position limitation of the limiting ring (44), the strip-shaped clamping plates (40) distributed in a surrounding mode are folded towards the middle to form the extrusion rubber barrel (39), the extruded rubber barrel (39) is extruded, viscous rubber in the rubber barrel is sprayed out from the spray head (38) and flows into an annular cavity formed by the butt joint flange (35), the turnover retaining side (50) and the elastic metal convex ring (36), and when the pull handle (42) is pulled by the user, the pressure induction switch (41) installed on the outer wall of the connecting flange body is triggered, the electric heating wire (47) is electrified to operate, colloid entering the annular cavity is heated, the colloid is promoted to flow and fill the whole annular cavity, the connection position of the connecting flange body (27) and the butt flange (35) is sealed through the colloid, the valve body (1) does not need to be disassembled for replacing a related sealing piece, when the colloid is injected, the elastic metal hammering ring (37) is hammered through a hammer, the elastic metal hammering ring (37) generates vibration, the vibration is transmitted to the elastic metal convex ring (36) through the elastic metal conducting rod (55), and the elastic metal convex ring (36) vibrates along with the vibration to promote the injected colloid to flow and fill the whole annular cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110165448.9A CN112780787A (en) | 2021-02-06 | 2021-02-06 | Butterfly valve and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110165448.9A CN112780787A (en) | 2021-02-06 | 2021-02-06 | Butterfly valve and use method thereof |
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| Publication Number | Publication Date |
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| CN112780787A true CN112780787A (en) | 2021-05-11 |
Family
ID=75761118
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110165448.9A Withdrawn CN112780787A (en) | 2021-02-06 | 2021-02-06 | Butterfly valve and use method thereof |
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| CN (1) | CN112780787A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113530808A (en) * | 2021-08-27 | 2021-10-22 | 德帕姆(杭州)泵业科技有限公司 | Plunger type reciprocating pump with anti-leakage sealing structure |
| CN113798131A (en) * | 2021-10-18 | 2021-12-17 | 珠海奔彩打印科技有限公司 | Dispensing head assembly, dispensing machine and dispensing method of dispensing machine |
| CN116221427A (en) * | 2023-03-08 | 2023-06-06 | 河南泉舜流体控制科技有限公司 | Controllable impact type self-sealing butterfly valve |
| CN117189885A (en) * | 2023-11-06 | 2023-12-08 | 德阳市东方恒运电机有限公司 | Butterfly valve with protection device |
| CN117704081A (en) * | 2024-02-05 | 2024-03-15 | 四川顺腾机械制造有限公司 | High-pressure pneumatic execution valve |
-
2021
- 2021-02-06 CN CN202110165448.9A patent/CN112780787A/en not_active Withdrawn
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113530808A (en) * | 2021-08-27 | 2021-10-22 | 德帕姆(杭州)泵业科技有限公司 | Plunger type reciprocating pump with anti-leakage sealing structure |
| CN113798131A (en) * | 2021-10-18 | 2021-12-17 | 珠海奔彩打印科技有限公司 | Dispensing head assembly, dispensing machine and dispensing method of dispensing machine |
| CN113798131B (en) * | 2021-10-18 | 2022-07-15 | 珠海奔彩打印科技有限公司 | Dispensing head assembly, dispensing machine and dispensing method of dispensing machine |
| CN116221427A (en) * | 2023-03-08 | 2023-06-06 | 河南泉舜流体控制科技有限公司 | Controllable impact type self-sealing butterfly valve |
| CN116221427B (en) * | 2023-03-08 | 2024-05-10 | 河南泉舜流体控制科技有限公司 | Controllable impact self-sealing butterfly valve |
| CN117189885A (en) * | 2023-11-06 | 2023-12-08 | 德阳市东方恒运电机有限公司 | Butterfly valve with protection device |
| CN117189885B (en) * | 2023-11-06 | 2024-01-09 | 德阳市东方恒运电机有限公司 | Butterfly valve with protection device |
| CN117704081A (en) * | 2024-02-05 | 2024-03-15 | 四川顺腾机械制造有限公司 | High-pressure pneumatic execution valve |
| CN117704081B (en) * | 2024-02-05 | 2024-04-09 | 四川顺腾机械制造有限公司 | High-pressure pneumatic execution valve |
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Application publication date: 20210511 |
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