CN110725965B - Pressure-resistant valve convenient to maintain - Google Patents
Pressure-resistant valve convenient to maintain Download PDFInfo
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- CN110725965B CN110725965B CN201911310903.9A CN201911310903A CN110725965B CN 110725965 B CN110725965 B CN 110725965B CN 201911310903 A CN201911310903 A CN 201911310903A CN 110725965 B CN110725965 B CN 110725965B
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- pressure
- resistant valve
- valve body
- sealing
- resistant
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
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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
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/065—Construction of housing; Use of materials therefor of taps or cocks with cylindrical plugs
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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
- F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre 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
- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
- F16K5/0442—Spindles and actuating means
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
- F16K5/045—Particular coverings and materials
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
- F16K5/0457—Packings
- F16K5/0471—Packings between housing and plug
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
- F16K5/0457—Packings
- F16K5/0485—Spindle sealing
Abstract
The invention relates to the technical field of pipeline opening and closing accessories, in particular to a pressure-resistant valve convenient to maintain, which comprises a pressure-resistant valve body, wherein a fixing mechanism is fixedly arranged at the top end of a connecting pipe, a rotating groove is formed in the bottom of a lifting groove, an opening and closing mechanism is rotatably connected inside the pressure-resistant valve body through the rotating groove, and a sealing mechanism is bonded inside the pressure-resistant valve body and positioned around the opening and closing mechanism; according to the invention, through the arrangement of the pressure-resistant valve body, the connecting pipe, the fixing mechanism, the opening and closing mechanism, the sealing mechanism, the first flange plate, the lifting piece, the lifting groove and the rotating groove, the pressure-resistant valve convenient to maintain has the advantages of convenience in disassembly and maintenance, good sealing effect and high pressure resistance, and solves the problems that the existing pressure-resistant valve is of an integrated structure, is inconvenient to maintain, has poor sealing effect, cannot replace a sealing ring according to conditions, is small in pressure resistance and is easy to leak.
Description
Technical Field
The invention relates to the technical field of pipe opening and closing accessories, in particular to a pressure-resistant valve convenient to maintain.
Background
The valve is a pipeline accessory used for opening and closing a pipeline, controlling the flow direction, regulating and controlling parameters (temperature, pressure and flow) of a conveying medium, has the functions of stopping, regulating, guiding, preventing backflow, stabilizing pressure, shunting or overflowing and relieving pressure and the like, is used for valves of a fluid control system, and has various varieties and specifications from the simplest stop valve to various valves used in an extremely complex automatic control system.
The valve can be used to control the flow of various types of fluid such as air, water, steam, various corrosive medium, mud, the oil, liquid metal and radioactive medium, along with the continuous upgrading of production facility, the requirement of valve is also high more and more, then the valve that possesses various environment begins to emerge constantly, withstand voltage valve is exactly one of them, but present withstand voltage valve is mostly a body structure, it is inconvenient to maintain, and sealed effect is poor, can't change the sealing washer according to the condition, it is less simultaneously withstand voltage, easily take place to leak, for this reason, the maintenance is dismantled to the convenience, it is sealed effectual, and withstand voltage great withstand voltage valve solves this problem.
SUMMARY OF THE PATENT FOR INVENTION
The invention aims to provide a pressure-resistant valve convenient to maintain, which has the advantages of convenience in disassembly and maintenance, good sealing effect and high pressure resistance, and solves the problems that the conventional pressure-resistant valve is of an integrated structure, is inconvenient to maintain, has poor sealing effect, cannot replace a sealing ring according to conditions, is low in pressure resistance and is easy to leak.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a withstand voltage valve convenient to maintenance, includes withstand voltage valve body, the fixed connecting pipe that is provided with in middle-end at withstand voltage valve body top, connecting pipe and withstand voltage valve body intercommunication, the fixed establishment that is provided with in top of connecting pipe, the fixed piece that lifts that is provided with in axle center department of withstand voltage valve body bottom, the top of lifting has seted up the groove of lifting, the rotation recess has been seted up to the bottom of lifting the recess, withstand voltage valve body's inside is rotated through rotating the recess and is connected with the operating mechanism, the inside of withstand voltage valve body and be located the bonding around the operating mechanism have sealing mechanism, sealing mechanism seals operating mechanism, fixing mechanism carries on spacingly to operating mechanism and sealing mechanism, the both sides of withstand voltage valve body are all fixed and are provided with first ring flange.
Preferably, the fixing mechanism comprises a fixing cover disc, a flange structure is arranged around the fixing cover disc, a second flange disc is fixedly arranged at the top end of the connecting pipe, a bolt is inserted between the fixing cover disc and the second flange disc, a nut is connected to the bottom end of the surface of the bolt in a threaded manner, the fixing cover disc and the second flange disc are bolted through the bolt and the nut, and a first sealing gasket is clamped between the bottom of the fixing cover disc and the top of the second flange disc.
Preferably, the fixed cover disc and the second flange disc are made of steel materials, and the surfaces of the fixed cover disc and the second flange disc are subjected to rust prevention treatment.
Preferably, the first sealing gasket is made of rubber, and the size of the first sealing gasket is matched with that of the second flange plate.
Preferably, the opening and closing mechanism comprises a pressure-resistant valve core, the bottom end of the surface of the pressure-resistant valve core is rotatably connected with the inside of the pressure-resistant valve body through a rotating groove, the bottom end of the surface of the pressure-resistant valve core is rotatably connected with the inside of a lifting groove, a pressure-resistant valve rod is bolted to the axis position of the top end of the pressure-resistant valve core, the top end of the pressure-resistant valve rod penetrates through the top of a fixed cover disc and is bolted with an opening and closing handle, a rotating bearing is sleeved on the surface of the pressure-resistant valve rod and is positioned inside the fixed cover disc, the outer side of the rotating bearing is sleeved with the inside of the fixed cover disc, a flow guide hole is formed in the middle end of the surface of the pressure-resistant valve core, a rotating block is bolted to.
Preferably, the anti-slip sleeve is sleeved at one end of the surface of the opening and closing handle and is made of rubber.
Preferably, the pressure-resistant valve core is made of stainless steel, and the pressure-resistant valve rod is made of steel.
Preferably, the sealing mechanism comprises two first sealing rings, the outer sides of the first sealing rings are bonded with the inside of the pressure-resistant valve body and the periphery of the pressure-resistant valve core, the inner sides of the first sealing rings are tightly attached to one end of the surface of the pressure-resistant valve core, second sealing gaskets are bonded to the top end and the bottom end of the pressure-resistant valve core, the outer sides of the second sealing gaskets on the top portion are attached to the inner wall of the connecting pipe, and the second sealing rings are bonded to the inner wall of the connecting pipe and the top portion of the second sealing gaskets.
Preferably, the second sealing gasket and the second sealing ring are made of rubber, and the inner side of the second sealing ring is attached to the bottom end of the surface of the pressure-resistant valve rod.
Preferably, the diameter of the middle end inside the pressure-resistant valve body is larger than the diameters of two sides inside the pressure-resistant valve body, the diameter inside the pressure-resistant valve body is gradually increased from two sides to the middle end, and the diameter inside the pressure-resistant valve body is larger than the diameter of the connecting pipe.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, through the arrangement of the pressure-resistant valve body, the connecting pipe, the fixing mechanism, the opening and closing mechanism, the sealing mechanism, the first flange plate, the lifting piece, the lifting groove and the rotating groove, the pressure-resistant valve convenient to maintain has the advantages of convenience in disassembly and maintenance, good sealing effect and high pressure resistance, and solves the problems that the existing pressure-resistant valve is of an integrated structure, is inconvenient to maintain, has poor sealing effect, cannot replace a sealing ring according to conditions, is small in pressure resistance and is easy to leak.
Drawings
FIG. 1 is a schematic view of the inventive structure;
FIG. 2 is a schematic view of a sealing mechanism according to the present invention;
FIG. 3 is a schematic view of the valve assembly of the present invention;
FIG. 4 is a schematic front view of the inventive structure;
FIG. 5 is an enlarged view of a portion of the section A in FIG. 1 according to the present invention.
In the figure: 1. a pressure-resistant valve body; 2. a connecting pipe; 3. a fixing mechanism; 31. fixing the cover plate; 32. a second flange plate; 33. a bolt; 34. a nut; 35. a first gasket; 4. an opening and closing mechanism; 41. a pressure-resistant valve core; 42. a pressure-resistant valve stem; 43. opening and closing the handle; 44. a rotating bearing; 45. a flow guide hole; 46. rotating the block; 5. a sealing mechanism; 51. a first seal ring; 52. a second gasket; 53. a second seal ring; 6. a first flange plate; 7. a lifting member; 8. lifting the groove; 9. rotating the groove; 10. an anti-slip sleeve.
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, not all of the embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments in the patent of the invention without any inventive work belong to the protection scope of the patent of the invention.
Referring to fig. 1-5, a pressure valve convenient for maintenance includes a pressure valve body 1, a connecting pipe 2 is fixedly disposed at the middle end of the top of the pressure valve body 1, the connecting pipe 2 is communicated with the pressure valve body 1, a fixing mechanism 3 is fixedly disposed at the top end of the connecting pipe 2, a lifting member 7 is fixedly disposed at the axis center of the bottom of the pressure valve body 1, a lifting groove 8 is disposed at the top of the lifting member 7, a rotating groove 9 is disposed at the bottom of the lifting groove 8, an opening and closing mechanism 4 is rotatably connected inside the pressure valve body 1 through the rotating groove 9, a sealing mechanism 5 is bonded inside the pressure valve body 1 and around the opening and closing mechanism 4, the opening and closing mechanism 4 is sealed by the sealing mechanism 5, the fixing mechanism 3 limits the opening and closing mechanism 4 and the sealing mechanism 5, first flanges 6 are fixedly disposed at both sides of the pressure valve body 1, and the, Connecting pipe 2, fixed establishment 3, starting and stopping mechanism 4, sealing mechanism 5, first ring flange 6, lift 7, lift recess 8 and the setting of rotating groove 9, make this withstand voltage valve convenient to maintenance, possess just the maintenance of dismantling, it is sealed effectual, withstand voltage great advantage moreover, it is mostly a body structure to have solved present withstand voltage valve, it is inconvenient to maintain, and sealed effect is poor moreover, can't change the sealing washer according to the condition, it is simultaneously withstand voltage less, take place the problem of leaking easily.
In this embodiment, fixing mechanism 3 includes fixed cover plate 31, and be the flange structure around fixed cover plate 31, the fixed second ring flange 32 that is provided with in top of connecting pipe 2, it has bolt 33 to peg graft between fixed cover plate 31 and the second ring flange 32, the bottom threaded connection on bolt 33 surface has nut 34, fixed cover plate 31 and second ring flange 32 are through bolt 33 and nut 34 bolt, first sealed pad 35 is held to the centre gripping between the bottom of fixed cover plate 31 and the top of second ring flange 32, can the person of facilitating the use dismantle pressure-resistant valve through setting up fixing mechanism 3, maintain it, maintenance and clearance, also the person of facilitating the use changes sealing mechanism 5 and pressure-resistant case 41 etc. according to the material of carrying simultaneously.
In this embodiment, fixed closing disk 31 and second ring flange 32 are steel material, and rust-resistant treatment is all done on the surface of fixed closing disk 31 and second ring flange 32, and the equal material of fixed closing disk 31 and second ring flange 32 can strengthen the intensity of fixed closing disk 31 and second ring flange 32, reduces the influence of external adverse factor to valve stability.
In this embodiment, the first sealing gasket 35 is made of rubber, the size of the first sealing gasket 35 is adapted to the size of the second flange, the material of the first sealing gasket 35 can achieve a good sealing effect, and the fixed cover plate 31 and the second flange 32 can be prevented from being rusted.
In this embodiment, the opening/closing mechanism 4 includes a pressure-resistant valve core 41, the bottom end of the surface of the pressure-resistant valve core 41 is rotatably connected with the inside of the pressure-resistant valve body 1 through a rotation groove 9, the bottom end of the surface of the pressure-resistant valve core 41 is rotatably connected with the inside of a lifting groove 8, a pressure-resistant valve rod 42 is bolted at the axis of the top end of the pressure-resistant valve core 41, the top end of the pressure-resistant valve rod 42 penetrates through the top of the fixed cover plate 31 and is bolted with an opening/closing handle 43, a rotation bearing 44 is sleeved at the surface of the pressure-resistant valve rod 42 and is positioned inside the fixed cover plate 31, the outer side of the rotation bearing 44 is sleeved with the inside of the fixed cover plate 31, a diversion hole 45 is opened at the middle end of the surface of the pressure-resistant valve core 41, the valve can be opened and closed by arranging the opening and closing mechanism 4, and the conveyed materials are regulated and controlled.
In this embodiment, the one end on opening and close handle 43 surface has cup jointed anti-skidding cover 10, and anti-skidding cover 10 is the rubber material, and anti-skidding cover 10 can prevent to slide when opening and close the valve, also can prevent to open and close handle 43 scald or frostbite the user simultaneously in bad weather.
In this embodiment, the pressure-resistant valve core 41 is made of stainless steel, the pressure-resistant valve rod 42 is made of steel, and the material of the pressure-resistant valve core 41 can enhance the pressure-resistant capability of the valve and prolong the service life of the valve.
In this embodiment, the sealing mechanism 5 includes two first sealing rings 51, the number of the first sealing rings 51 is two, the outer side of the first sealing ring 51 is bonded to the inside of the pressure-resistant valve body 1 and located around the pressure-resistant valve core 41, the inner side of the first sealing ring 51 is tightly bonded to one end of the surface of the pressure-resistant valve core 41, the top end and the bottom end of the pressure-resistant valve core 41 are both bonded with the second sealing gaskets 52, the outer side of the second sealing gasket 52 at the top is bonded to the inner wall of the connecting pipe 2, the inner wall of the connecting pipe 2 and the top located at the second sealing gasket 52 are bonded with the second sealing ring 53, the pressure-resistant valve body 1 can be sealed by the sealing mechanism.
In this embodiment, the second sealing gasket 52 and the second sealing ring 53 are made of rubber, the inner side of the second sealing ring 53 is attached to the bottom end of the surface of the pressure-resistant valve rod 42, and the second sealing gasket 52 and the second sealing ring 53 are made of a material which can achieve a good sealing effect.
In this embodiment, the diameter of the inside middle part of withstand voltage valve body 1 is greater than the diameter of the inside both sides of withstand voltage valve body 1, and the inside diameter of withstand voltage valve body 1 increases from both sides to the middle part gradually, and the inside diameter of withstand voltage valve body 1 is greater than the diameter of connecting pipe 2, and the inside diameter setting of withstand voltage valve body 1 can strengthen the withstand voltage intensity of valve for the valve can bear more abominable operational environment.
The working principle is as follows: the pressure-resistant valve body 1 is connected with a pipeline through the first flange 6, after fluid enters the pressure-resistant valve body 1, the pressure intensity of the fluid entering the pressure-resistant valve body 1 is reduced due to the fact that the inner diameter of the pressure-resistant valve body 1 is increased, the opening and closing handle 43 is rotated, the opening and closing handle 43 drives the pressure-resistant valve core 41 to rotate through the pressure-resistant valve rod 42, the rotating pressure-resistant valve core 41 drives the flow guide hole 45 to adjust the direction to achieve opening and closing of the valve, the fluid with high pressure extrudes the first sealing ring 51 to want to drill, but the first sealing ring 51 is limited by the second sealing gasket 52 at the top, the second sealing ring 53, the rotating bearing 44 and the fixed cover disc 31, the second sealing gasket 52 at the top can be matched with the first sealing ring 51 to further achieve sealing, and even if the sealing structures of the second sealing ring 53 and the fixed mechanism 3 are arranged at, meanwhile, when the corresponding sealing material and the pressure-resistant valve core 41 need to be replaced or the valve needs to be maintained according to the situation, the bolt 33 and the nut 34 are rotated, the bolting state is loosened, the fixed cover disc 31 is opened, all parts inside the valve are taken out by lifting the pressure-resistant valve rod 42, the parts are maintained and replaced, the inside of the pressure-resistant valve body 1 is cleaned, all the parts are reset and reinstalled, the pressure-resistant valve core 41 is transversely limited by the lifting piece 7 through the lifting groove 8 and the rotating groove 9 in the process, the pressure-resistant valve body 1 is prevented from longitudinally limiting the pressure-resistant valve core 41 by using a fixed structure, and the pressure-resistant valve core 41 is convenient to take out or place.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (8)
1. The utility model provides a withstand voltage valve convenient to maintenance, includes withstand voltage valve body (1), its characterized in that: the middle end of the top of the pressure-resistant valve body (1) is fixedly provided with a connecting pipe (2), the connecting pipe (2) is communicated with the pressure-resistant valve body (1), the top end of the connecting pipe (2) is fixedly provided with a fixing mechanism (3), the axle center of the bottom of the pressure-resistant valve body (1) is fixedly provided with a lifting piece (7), the top of the lifting piece (7) is provided with a lifting groove (8), the bottom of the lifting groove (8) is provided with a rotating groove (9), the inside of the pressure-resistant valve body (1) is rotatably connected with an opening and closing mechanism (4) through the rotating groove (9), the inside of the pressure-resistant valve body (1) is adhered with a sealing mechanism (5) which is positioned around the opening and closing mechanism (4), the sealing mechanism (5) seals the opening and closing mechanism (4), and the fixing mechanism (3) limits the opening and closing mechanism (4) and the sealing, two sides of the pressure-resistant valve body (1) are fixedly provided with first flange plates (6);
the fixing mechanism (3) comprises a fixing cover disc (31), a flange structure is arranged around the fixing cover disc (31), a second flange disc (32) is fixedly arranged at the top end of the connecting pipe (2), a bolt (33) is inserted between the fixing cover disc (31) and the second flange disc (32), a nut (34) is connected to the bottom end of the surface of the bolt (33) in a threaded manner, the fixing cover disc (31) and the second flange disc (32) are bolted through the bolt (33) and the nut (34), and a first sealing gasket (35) is clamped between the bottom of the fixing cover disc (31) and the top of the second flange disc (32);
the opening and closing mechanism (4) comprises a pressure-resistant valve core (41), the bottom end of the surface of the pressure-resistant valve core (41) is rotatably connected with the inside of the pressure-resistant valve body (1) through a rotating groove (9), the bottom end of the surface of the pressure-resistant valve core (41) is rotatably connected with the inside of a lifting groove (8), a pressure-resistant valve rod (42) is bolted at the axis of the top end of the pressure-resistant valve core (41), the top end of the pressure-resistant valve rod (42) penetrates through the top of a fixed cover disc (31) and is bolted with an opening and closing handle (43), a rotating bearing (44) is sleeved at the surface of the pressure-resistant valve rod (42) and is positioned inside the fixed cover disc (31), the outer side of the rotating bearing (44) is sleeved with the inside of the fixed cover disc (31), a flow guide hole (45) is formed at the middle end of the surface of the pressure-resistant valve core (41), and, the surface of the rotating block (46) is rotatably connected with the inner part of the rotating groove (9).
2. A pressure-resistant valve to facilitate maintenance as claimed in claim 1, wherein: the fixed cover disc (31) and the second flange disc (32) are made of steel materials, and the surfaces of the fixed cover disc (31) and the second flange disc (32) are subjected to rust prevention treatment.
3. A pressure-resistant valve to facilitate maintenance as claimed in claim 1, wherein: the first sealing gasket (35) is made of rubber, and the size of the first sealing gasket (35) is matched with that of the second flange plate.
4. A pressure-resistant valve to facilitate maintenance as claimed in claim 1, wherein: the anti-skidding sleeve (10) is sleeved at one end of the surface of the opening and closing handle (43), and the anti-skidding sleeve (10) is made of rubber.
5. A pressure-resistant valve to facilitate maintenance as claimed in claim 1, wherein: the pressure-resistant valve core (41) is made of stainless steel, and the pressure-resistant valve rod (42) is made of steel.
6. A pressure-resistant valve to facilitate maintenance as claimed in claim 1, wherein: the sealing mechanism (5) comprises two first sealing rings (51), the number of the first sealing rings (51) is two, the outer sides of the first sealing rings (51) are bonded with the inside of the pressure-resistant valve body (1) and positioned around the pressure-resistant valve core (41), the inner sides of the first sealing rings (51) are tightly attached to one end of the surface of the pressure-resistant valve core (41), the top end and the bottom end of the pressure-resistant valve core (41) are respectively bonded with a second sealing gasket (52), the outer sides of the second sealing gaskets (52) at the top are bonded with the inner wall of the connecting pipe (2), and the inner wall of the connecting pipe (2) is bonded with a second sealing ring (53) positioned at the top of the second sealing gasket (52).
7. A pressure-resistant valve to facilitate maintenance as claimed in claim 6, wherein: the second sealing gasket (52) and the second sealing ring (53) are both made of rubber materials, and the inner side of the second sealing ring (53) is attached to the bottom end of the surface of the pressure-resistant valve rod (42).
8. A pressure-resistant valve to facilitate maintenance as claimed in claim 1, wherein: the diameter of the middle end in the pressure-resistant valve body (1) is larger than the diameters of two sides in the pressure-resistant valve body (1), the diameter in the pressure-resistant valve body (1) is gradually increased from two sides to the middle end, and the diameter in the pressure-resistant valve body (1) is larger than the diameter of the connecting pipe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911310903.9A CN110725965B (en) | 2019-12-18 | 2019-12-18 | Pressure-resistant valve convenient to maintain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911310903.9A CN110725965B (en) | 2019-12-18 | 2019-12-18 | Pressure-resistant valve convenient to maintain |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110725965A CN110725965A (en) | 2020-01-24 |
| CN110725965B true CN110725965B (en) | 2020-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911310903.9A Active CN110725965B (en) | 2019-12-18 | 2019-12-18 | Pressure-resistant valve convenient to maintain |
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| CN (1) | CN110725965B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115823340B (en) * | 2023-02-22 | 2023-05-09 | 西安高压阀门厂集团有限公司 | Titanium alloy valve |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3888460A (en) * | 1974-03-18 | 1975-06-10 | Sigmon Corp | Ball valve compression seat |
| CN202834166U (en) * | 2012-10-25 | 2013-03-27 | 浙江联大阀门有限公司 | Ball valve convenient to dismount and maintain |
| CN203202269U (en) * | 2013-01-28 | 2013-09-18 | 温州凯林阀门有限公司 | Ball valve convenient to install, detach and maintain |
| CN205207757U (en) * | 2015-12-17 | 2016-05-04 | 凯喜姆阀门有限公司 | Simple and convenient online fixed ball valve of maintenance upper assembling type of changing |
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2019
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| CN110725965A (en) | 2020-01-24 |
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