CN116428385A

CN116428385A - Modularized three-valve double-union ball valve

Info

Publication number: CN116428385A
Application number: CN202310339850.3A
Authority: CN
Inventors: 岑德华; 岑德祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-03-31
Filing date: 2023-03-31
Publication date: 2023-07-14

Abstract

The application relates to a modularized three-valve double-union ball valve, which comprises a valve body and a valve core assembly which are arranged in a modularized manner, wherein a flow passage of the valve body is vertical to a mounting opening and a mounting cavity; the valve body is provided with a socket switch assembly at one side of the socket at two sides of the runner, and the side socket is used as a runner inlet; the valve core component comprises a sealing cover leakage stopping ring frame and a ball core rod piece, and the ball core rod piece comprises a valve ball core and a ball rod which are of an integrated structure; the sealing cover leakage-stopping ring frame is provided with a ring frame body for installing a valve ball core; the ring frame body comprises a ring seat which is arranged oppositely and used for installing a leakage stopping ring, and a leakage stopping ring installation groove which is arranged oppositely to the socket is arranged in the same annular direction; the ring frame body and the valve ball core are arranged in the mounting cavity, and the ball rod is used for being externally connected with a handle to drive the rotary valve ball core to control the on-off of the flow channel; the socket switch assembly comprises a socket piston plug and a switch control nut which are sequentially arranged along the reverse flow passage direction, and the switch control nut drives the socket piston plug to move back and forth along the flow passage so as to control the opening and closing of the socket.

Description

Modularized three-valve double-union ball valve

Technical Field

The application relates to the technical field of valve ball valves, in particular to a modularized three-valve double-union ball valve.

Background

The ball valve is characterized in that the ball valve is composed of an English unit joint, namely a double-union ball valve, the structure of the double-union ball valve in the market at present is basically composed of a valve body, a lining, a leakage stopping ring, a ball core, a ball rod, a handle and the like, all parts are independent, the assembling of the double-union ball valve is generally carried out by the procedures of sequentially installing the leakage stopping ring, a sealing ring, the ball rod, the ball core, the lining and the like from the hollow side edge of the valve body by special tools, the assembling operation basically extends from one water inlet end of the side face to the inner part of the valve body, so that each connecting piece can only be assembled in a narrow space in the valve body in a low-efficiency and complicated mode, the assembling process is professional and the accessory is multiple and easy to scatter, so that the manufacturing cost is too high, and the product is expensive after being put into use.

The existing common double-ball valve is characterized in that a ball valve lining plugging piece is mostly in threaded connection with a valve body, a leakage stopping ring on the lining can be screwed tightly when the lining is rotated to compact the ball core to form a sealing surface, if the ball core is too tightly screwed during installation, the leakage stopping ring excessively extrudes the ball core to cause the ball core to rotate or not to rotate, so that the control of opening and closing is affected, but if the ball core is too loose, the leakage stopping ring does not compact the ball core to leak, and the production is difficult to control.

Moreover, the outside of the lining is provided with a sealing ring which is in rotary sealing threaded connection with the flat socket through a screw cap, the screw connection is often provided with the screw cap to drive the flat socket, the sealing ring rotates the sealed lining forward, so that the ball pressing core of the lining leakage-stopping ring is pressed too dead, the switch is difficult to rotate, or the lining is reversely rotated to cause excessive loosening of the lining during disassembly.

In addition, because the installation of inside lining closing cap and inside spare and accessory parts needs professional instrument to assemble for the product has obtained in ordinary user's hand if the use problem appears and can't dismantle maintenance or change the accessory almost, makes in fact ordinary ball valve on the market fall to disposable product, only can abandon and renew again, and need dismantle the pipeline at renew in-process, and it is laborious to waste time, still has the security risk, has also caused huge waste.

In addition, when the common ball valve is detached and repaired, the pipeline main gate and even the whole pipeline system are required to be turned off, if the ball valve is often replaced in a factory or a large-scale site, other projects of the whole site can be directly affected, and the loss is huge. In addition, a certain residual medium (such as water, gas and the like) exists in the pipeline system after the main gate is closed, the residual medium is inevitably leaked when the ball valve is removed for maintenance and replacement, and if the residual medium is dangerous, the safety risk exists, so that the maintenance and the replacement are extremely inconvenient.

Disclosure of Invention

In order to solve the problem, this application provides the three valve pair of modularization by making the ball valve, and this application mainly solves the installation of ball valve process complicacy, the difficult problem of maintenance, and secondly this application still solves the problem that the trouble maintenance needs to close total floodgate. The application provides a three valve double by letting ball valve of modularization, adopts following technical scheme:

the modularized three-valve double-password ball valve comprises a valve body and a valve core assembly; the valve body and the valve core component are arranged in a modularized mode: the valve body is provided with a mounting opening perpendicular to a runner of the valve body, and a mounting cavity is formed in the middle section of the runner of the valve body and is communicated with the mounting opening:

the valve core assembly comprises a sealing cover leakage stopping ring frame and a ball core rod piece, and the ball core rod piece comprises a valve ball core and a ball rod which are of an integrated structure; the sealing cover leakage-stopping ring frame is provided with a ring frame body for rotatably mounting the valve ball core; the ring frame body comprises ring seats which are oppositely arranged, the ring seats are used for installing the leakage stopping rings, leakage stopping ring installation grooves are formed in the same ring direction of the ring seats and smaller than the diameter of the ring seats, and the leakage stopping ring installation grooves are oppositely arranged with the bellmouth of the flow passage of the valve body; the valve ball core can be rotatably arranged in the ring seat of the ring frame body;

The assembled ring frame body and the valve ball core are arranged in the mounting cavity, the valve core assembly is inserted into the valve body for assembly through upper assembly or lower assembly, and the valve ball core is driven to rotate by the ball rod to control the on-off of the flow channel.

In a preferred embodiment, the valve body is provided with socket switch assemblies at one or both sides of the socket on both sides of the flow channel;

the socket switch assembly comprises a socket piston plug and a switch control nut which are sequentially arranged along the reverse flow channel direction, and the switch control nut drives the socket piston plug to move back and forth along the flow channel direction so as to control the switch of the socket.

In a preferred embodiment, the mounting opening is arranged at the upper end of the valve body, the sealing cover leakage-stopping ring frame is sequentially provided with a ring frame body, a mounting body and a sealing layer along the mounting direction, and a club through hole is formed through the mounting body and the sealing layer to be matched with the club;

the sealing cover anti-leakage ring frame is integrally provided with a limiting pile at one end of the club extending out of the club through hole, and one end of the club extends out of the limiting pile and is used for installing a handle.

In a preferred embodiment, the mounting opening is arranged at the lower end of the valve body, the sealing cover leakage-stopping ring frame is sequentially provided with a ring frame body and a sealing layer along the mounting direction, and a club through hole is arranged on one side of the valve body opposite to the mounting opening in a penetrating way to be matched with the club;

The valve body is provided with a limit pile at the position penetrating through the club through hole, and one end of the club extends out of the limit pile and is used for installing a handle.

In a preferred embodiment, the mounting opening is provided with rectangular round corners, a leveling layer is arranged at the mounting position of the sealing layer, and spiral layers and positioning layers are arranged at two sides of the leveling layer along the mounting direction;

the positioning layer is provided with a step for being abutted against the bottom surface of the sealing layer to be positioned; the spiral layer is matched with a sealing cover spiral disc and used for locking the valve core component and the valve body to be assembled.

In a preferred embodiment, a friction reducing ring is arranged at the adapting position of the sealing cap screw disc and the mounting port;

when the cover screw disc is matched with the mounting port at the upper end of the valve body, a mounting hole is formed in the middle of the cover screw disc and is movably sleeved with the mounting body; the mounting body is in threaded connection with the sealing cover spiral disc through a limiting spiral ring;

or when the sealing cover screw disc is matched with the mounting port at the lower end of the valve body, a tool hole groove is formed in the middle of the sealing cover screw disc, and an auxiliary tool is matched.

In a preferred embodiment, the section of the mounting opening is rectangular, four groups of screw threads are arranged in the screw layer of the mounting opening in rectangular four sides, and the screw threads are of arc-shaped structures and are matched with the screw structures of the screw cap screw disc.

In a preferred embodiment, a plurality of first sealing rings are distributed on the ball rod and are used for being in interference fit with the ball rod through hole;

a sealing groove is arranged on the sealing layer and is used for being in interference fit with the leveling layer;

and a fourth sealing ring is arranged at the joint of the bottom surface of the sealing layer and the step of the positioning layer.

In a preferred embodiment, the limiting piles are provided with two limiting blocks at opposite positions along the circumferential direction, and limiting grooves are formed in positions of the handles corresponding to the limiting blocks; the ring length of the limiting groove is set to be one quarter of the circumference of the inner ring of the handle.

In a preferred embodiment, the sealing ring arranged in the ring seat is provided with a sealing ring groove at one surface facing away from the valve ball core, and a sealing ring is sleeved in the sealing ring groove.

In a preferred embodiment, sealing surfaces of the water outlet hole and the water inlet hole in the mounting chamber are smooth end surfaces parallel to each other so as to be matched with the ring frame body.

In a preferred embodiment, the valve body is provided with socket opening and closing assemblies at both sides of the flow passage.

In a preferred embodiment, the socket piston plug comprises a spherical plug and a piston body, and a connecting pipe socket is arranged on one side of the piston body opposite to the spherical plug; the connecting pipe socket is hollow;

The side wall of the socket of the connecting pipe is provided with a limiting ring screw thread which is connected with the switch control nut through a limiting ring screw.

In a preferred embodiment, a limiting retainer ring is arranged at the joint of the connecting pipe socket and the piston body, and a bayonet is narrowed inwards at the opening at the rear end of the switch control nut;

the limiting retainer ring and the limiting ring screw teeth are arranged at intervals; the connecting pipe socket is clamped at the bayonet in a penetrating mode through the limiting retainer ring, and the set interval distance is adaptive to the width of the bayonet.

In a preferred embodiment, a plurality of third sealing rings are arranged on the piston body, the socket of the valve body is matched with the third sealing rings, and an adapting channel is arranged on the third sealing rings and is in interference fit with the third sealing rings.

In a preferred embodiment, the adaptation channel adapts the travel of the third sealing ring along with the movement of the socket piston plug.

In a preferred embodiment, a T-shaped concave sealing seat is installed in a flow passage at one side of the bellmouth towards the bellmouth piston plug, a plurality of openings are formed in the side face of the bellmouth piston plug, the piston body is a hollow pipeline, and a channel is formed by the openings, the piston body and the connecting pipe bellmouth for through flow;

The T-shaped concave sealing seat is provided with a concave sealing surface on one side facing the socket piston plug and is used for propping against and sealing with the spherical plug of the socket piston plug so as to control the socket to close and stop.

In a preferred embodiment, a sealing seat limiting groove is formed in the runner of the bellmouth in a manner of adapting to the T-shaped concave sealing seat, and a T-shaped limiting flange of the T-shaped concave sealing seat is clamped into the sealing seat limiting groove to be fixed;

and a water flow hole is arranged in the T-shaped concave sealing seat.

In a preferred embodiment, a sealing seat ring is arranged at the socket, and the sealing seat ring is formed by narrowing and protruding at the water inlet and the water outlet of the socket, and water flows in the sealing seat ring;

the T-shaped concave sealing seat and the sealing seat ring are sequentially arranged along the water flow direction.

In a preferred embodiment, a water containing groove is arranged in the runner of the bellmouth and close to the bellmouth piston plug; and a water containing groove and a T-shaped concave sealing seat are sequentially arranged along the inward movement direction of the socket piston plug.

In a preferred embodiment, a section of thread installation end is arranged on the pipeline at the socket, and the thread travel of the thread installation end is smaller than that of the switch control nut;

The switch control nut is screwed to the tightest part by the threaded mounting end to close the socket for circulation.

In a preferred embodiment, the switch control nut is provided with a limit pin at the edge of the screw hole; an annular groove is circumferentially arranged at the socket and passes beyond the threaded mounting end;

the switch control nut is screwed to the thread travel of the limit pin beyond the thread mounting end by the thread mounting end and is screwed downwards into the annular groove.

In a preferred embodiment, the annular groove cooperates with the limit pin to limit unscrewing of the switch control nut from the threaded mounting end;

the limit pin moves back and forth along the annular groove to give way to the spiral movement of the switch control nut.

In a preferred embodiment, a plurality of power-assisted holes are formed in the switch control nut along the peripheral side, and a club tool is matched to assist the rotation of the switch control nut.

In summary, the present application includes the following beneficial effects:

1. the utility model provides a user can dismantle by oneself and change two by letting ball valve of modularization of maintenance, only need close the spiral valve of ball valve both ends bellmouth switch module, cut the front and back water route, make valve body installation cavity be in the safe operation environment of front and back outage, extract impaired case module and change new case module, labour saving and time saving safety is swift, has greatly reduced extravagant, produces huge economic value.

2. The utility model provides a three valves of modularization are two by making ball valve, set up case subassembly and bellmouth switch module and form three valve structures, if the main ball valve has unexpected circumstances, two side valves can act as temporary switch, avoid the out of control of pipeline, and two insurance, the case subassembly adopts the modularization setting can realize the used repeatedly of ball valve, owing to adopt general ordinary instrument detachable encapsulation nut spiral shell dish, and ordinary user also can realize quick replacement maintenance.

3. The utility model provides a valve body and case subassembly that modularization set up, valve core and ball arm that case subassembly adopted integral type structure, and the fixed ring of stopping that sets up, do not set up scattered part in the valve body, the valve core with stop the fixed installation cooperation of ring certificate of stopping, not receive the rotatory influence of valve body outer nut, ensure that valve core and stop the ring can not transition to press dead or excessively loose, and influence the normal use of ball valve.

4. Because the valve core module is assembled outside the valve body, the operation space is large, the assembly parts are few, the assembly flow is greatly simplified, and the production is more convenient and efficient.

Drawings

FIG. 1 is an exploded view of a valve body and valve cartridge assembly of a first embodiment;

FIG. 2 is a schematic structural view of the valve cartridge assembly of the first embodiment;

FIG. 3 is an exploded schematic view of the valve cartridge assembly of the first embodiment;

fig. 4 is a schematic structural view of the valve body of the first embodiment;

fig. 5 is a structural sectional view of the valve body of the first embodiment;

FIG. 6 is an exploded view of the installation of the valve body and socket switch assembly of the third embodiment;

FIG. 7 is a schematic diagram of a third embodiment of a socket switch assembly opening flow;

FIG. 8 is a cross-sectional view of the socket switch assembly of the third embodiment in a third position;

fig. 9 is a schematic view of the third embodiment of the mouthpiece switch assembly closing shut off

FIG. 10 is a cross-sectional view of the socket switch assembly of the third embodiment in a fourth position;

FIG. 11 is an exploded view of the valve body and valve cartridge assembly of the second embodiment;

FIG. 12 is a self-contained schematic view of a dual ball valve of the second embodiment;

fig. 13 is a handle mounting schematic of the second embodiment.

Reference numerals illustrate: 1. a valve body; 11. a socket; 111. a seal seat ring; 12. a mounting port; 121. a spiral layer; 122. leveling the layer; 123. a positioning layer; 13. a mounting chamber; 131. a water inlet hole; 132. a water outlet hole; 14. a cap screw plate; 141. a tool hole slot; 15. a decorative cover; 16. a T-shaped concave sealing seat; 161. a flange; 162. a concave blocking surface; 17. a threaded mounting end; 18. an annular groove; 19. rong Shuicao; 2. a valve core assembly; 21. sealing the leakage-stopping ring frame; 211. a club through hole; 212. a ring frame; 213. a mounting body; 214. a sealing layer; 22. a ball core rod piece; 221. a valve ball core; 222. a cue; 23. a leakage stopping ring; 24. a leakage stopping sealing ring; 25. a first seal ring; 26. a second seal ring; 27. limiting a spiral ring; 28. spacing piles; 281. a limiting block; 29. a fourth seal ring; 3. a handle; 31. a limit groove; 4. a socket switch assembly; 41. a socket piston plug; 411. a spherical plug; 412. a water outlet; 413. a piston body; 414. a connecting pipe socket; 415. limiting ring screw teeth; 42. a switch control nut; 421. pushing the retainer ring; 43. a limiting ring; 44. a third seal ring; 45. a limit retainer ring; 451. pushing the retainer ring position; 46. a limit pin; 47. and a power assisting hole.

Detailed Description

The embodiment of the application discloses three valve double by the order ball valves of modularization, and its aim at provides the ball valve of the no inside lining closing cap of the upper assembling of switch around designing a from area, need not close the total floodgate when meeting trouble and need not dismantle the ball valve also can pass through ordinary instrument fast and dismantle maintenance change the installation case module.

In order that the above objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings 1 to 13.

The utility model provides a three valves of modularization are two by making ball valve according to its modular design, mainly divide to establish two, and one is valve body 1, and one is case subassembly 2, and case subassembly 2 accessible upper assembling or lower dress insert valve body 1 screw cap can accomplish the equipment, and this valve body 1 is as the main part of connecting piping system, sets up to the firm piece not fragile. The valve core component 2 is used as a switch piece and is a loss product, and is used as a piece separated from the valve body 1, after the valve core component 2 is lost, a screw cover can be unscrewed by an ordinary wrench to pull out a damaged valve core module, a new valve core module is inserted, and then the screw cover is screwed down, so that the valve core can be quickly replaced, and the time, the labor and the cost are saved.

The valve body 1 according to the present application is a valve body 1 provided with three-way openings, as shown in fig. 1, two openings distributed along the same axis are sockets 11, and the sockets 11 are communicated to form a pipeline flow passage for passing a fluid medium, and an opening perpendicular to the pipeline is provided as an installation opening 12 for installing the valve core assembly 2.

As shown in fig. 4, the valve body 1 is provided with an installation cavity 13 from the installation opening 12 inwards, the installation cavity 13 is communicated with the bellmouth 11 on two sides of the installation cavity, four side end surfaces of the installation cavity 13 are of a plane design, and a sealing structure is not provided, so that the installation of scattered parts in the installation cavity 13 is reduced, and the process steps of the installation of the scattered parts during the installation are reduced.

The valve core assembly 2 comprises a sealing cover leakage stopping ring frame 21 and a ball core rod piece 22, as shown in fig. 2, wherein the ball core rod piece 22 is formed by integrating a valve ball core 221 and a ball rod 222, the machining process is greatly shortened in the machining process, only one-time mold injection molding is needed, a through hole is formed in the central axis of the valve ball core 221 in a penetrating mode, and the opening and closing of a socket 11 of the valve body 1 are realized by means of the mutual rotation dislocation of the antidiarrheal ring 23 arranged on the sealing cover leakage stopping ring frame 21.

As shown in fig. 3, a club through hole 211 is formed in the middle of the cap leakage stop ring frame 21, the club through hole 211 is used for inserting a club 222, two or more first sealing rings 25 are arranged on the club 222 at intervals, and the first sealing rings 25 are used for matching with the installation of the club through hole 211 and forming interference fit sealing with the side wall of the club through hole 211.

The sealing cover leakage-stopping ring frame 21 is sequentially provided with a ring frame body 212, a mounting body 213 and a sealing layer 214 along the insertion direction, the club through hole 211 penetrates through the mounting body 213 and the sealing layer 214, the ring frame body 212 comprises a ring seat which is oppositely arranged and is used for mounting a leakage-stopping ring 23, a leakage-stopping ring mounting groove which is arranged in the same annular direction and smaller than the diameter of the ring seat, the leakage-stopping ring mounting groove is oppositely arranged with the socket 11, the leakage-stopping ring 23 is pressed into the ring seat in a pressing mode to be fixed, a sealing ring groove is arranged on one surface of the leakage-stopping ring 23, which is opposite to the valve ball core 221, a leakage-stopping sealing ring 24 is sleeved in the sealing ring groove, and the leakage-stopping sealing ring 24 is arranged in a semi-submerged pressing mode and is used for sealing a water inlet 131 and a water outlet 132 in the mounting cavity 13.

When the sealing cover leakage stopping ring frame 21 and the ball core rod piece 22 are installed, the ball core rod piece 22 is inserted into the ball rod through hole 211, the end face of the valve ball core 221 provided with the water outlet through hole is aligned with the through hole face of the leakage stopping ring 23 for adaptive installation, and the valve ball core 221 is driven to be switched into a spherical surface or the water outlet through hole face to cut off or conduct water flow by rotating the ball rod 222.

The sealing layer 214 is provided with a second sealing ring groove for installing a second sealing ring 26, the second sealing ring 26 is also pressed into the second sealing ring groove in a semi-immersed manner to be fixed, a spiral layer 121, a leveling layer 122 and a positioning layer 123 are sequentially arranged inwards at the installation opening 12 of the valve body 1 along the installation direction, the positioning layer 123 is outwards expanded to form a step and is used for being abutted to the bottom of the sealing layer 214 to be positioned, the installation is convenient, furthermore, a fourth sealing ring 29 is arranged at the abutting position of the bottom of the sealing layer 214 and the step, an extrusion seal is formed between the abutting positions, the fourth sealing ring 29 is an O-shaped sealing ring and is used for extrusion seal, after the valve element assembly 2 is installed into the valve body 1 to be tightly screwed, the fourth sealing ring 29 is extruded on the step of the positioning layer 123, the fourth sealing ring 29 forms interference fit seal with the leveling layer 122, and forms two seals and double insurance with the second sealing ring 26.

The sealing layer 214 is assembled with the leveling layer 122 and forms movable extrusion through the second sealing ring 26 to realize airtight sealing, the ring frame 212 is arranged in the installation cavity 13 arranged inwards of the installation opening 12, the installation body 213 is penetrated with the cover screw disk 14, the installation body 213 is movably sleeved with the installation body 213 through the installation hole in the middle of the cover screw disk 14, one end of the installation body 213 penetrates through the installation hole and is fixed through a limit screw ring 27 in a screwed manner, and because the limit screw ring 27 is fixed on the installation body 213 in a screwed manner, the cover screw disk 14 can lift the limit screw ring 27 together when the seal screw ring 27 is detached and rotated to lift the installation body 213, so that the valve core assembly 2 is pulled out.

The method comprisesThe bottom of the cap screw disk 14 resists the end face of the sealing layer 214 and spirals with the screw thread groove of the screw layer 121 and fixes the cap leakage stopping ring frame 21 on the valve body 1 to realize the effect of compacting the cap, and optionally, a decorative cap 15 can be arranged at the upper end of the cap screw disk 14 to increase the appearanceBeautiful appearance.

It should be noted that, the bottom end of the cap screw disk 14 is provided with a friction reducing ring, so as to reduce friction surface and thus friction force, and the friction force of the cap screw disk 14 during spinning can be effectively reduced during rotation so as to achieve the purpose of easy rotation; the section of the mounting opening 12 is rectangular, four groups of screw teeth are arranged in the screw layer 121 of the mounting opening 12 in rectangular four sides, and the screw teeth are of arc structures and are matched with the screw structures of the sealing cap screw disk 14.

As shown in fig. 1, the valve core assembly 2 is installed by inserting the ball rod 222 of the ball core rod 22 into the middle of the sealing cover leakage stop ring frame 21 along the ball rod through hole 211, so that the valve ball core 221 is arranged in the middle of the ring frame 212, the sealing cover leakage stop ring frame 21 is provided with a limit pile 28 on one end of the ball rod 222 extending out of the ball rod through hole 211, the limit pile 28 and the sealing cover leakage stop ring frame 21 are integrated, one end of the ball rod 222 extending out of the ball rod through hole 211 is used for installing a handle 3, and the handle 3 drives the ball rod 222 to rotate, so that the rotation of the ball core rod 22 in the sealing cover leakage stop ring frame 21 is realized, and the valve ball core 221 of the ball core rod 22 can be selectively positioned at a first position or a second position

As shown in fig. 13, the handle 3 and the limiting post 28 form a limiting fit, two limiting blocks 281 are disposed at opposite positions of the limiting post 28 of the handle 3, a limiting groove 31 is disposed in the handle 3 corresponding to the limiting block 281, a ring length of the limiting groove 31 is set to be one quarter of a circumference of an inner ring of the handle 3, the handle 3 is matched with the limiting block 281 and the limiting groove 31, a primary rotation angle is 90 °, and the setting of the 90 ° rotation angle is just an angle for switching between a spherical surface of a ball core and a through hole surface of the ball core.

The cover screw plate 14 and the cover leakage-stopping ring frame 21 are in screw connection limit by adopting a limit screw ring 27, and a screw thread is arranged at the lower end of the cover leakage-stopping ring frame 21, which is positioned at the limit pile 28, for screw connection of the limit screw ring 27.

In the first position, the water outlet through hole of the valve ball core 221 of the ball core rod piece 22 is correspondingly arranged with the leakage stopping ring 23 of the ring frame 212, the ball core through hole of the valve ball core 221 is communicated with the leakage stopping ring 23 through hole, and the ball valve is in a connection state and can be used for normal pipeline transportation work; in the second position, the through hole of the valve ball core 221 of the ball core rod piece 22 is dislocated with the leakage stopping ring 23 of the ring frame 212, the ball core sphere of the valve ball core 221 is propped against the through hole of the leakage stopping ring 23, and at the moment, the ball valve is in an off-on state, and the ball valve stops pipeline transportation work.

The working principle of the ball valve is that two anti-leakage rings 23 are tightly attached to clamp a valve ball core 221, and the ball surface of the valve ball core 221 and the end surface with a water outlet through hole are driven by a rotary ball rod 222 to perform spherical blocking with the anti-leakage rings 23 or the water outlet through hole is connected with the anti-leakage rings 23 to complete opening and closing.

The valve core assembly 2 and the valve body 1 are installed, the valve core assembly 2 is installed in the installation cavity 13 downwards through the ball core rod piece 22, when the sealing layer 214 of the sealing cover leakage-stopping ring frame 21 is propped against the positioning layer 123, the whole ball core rod piece 22 is immersed into the installation cavity 13, the sealing layer 214 is in interference fit with the leveling layer 122 to carry out airtight sealing, and the sealing layer is spirally fixed through the sealing cover screw disk 14, for installation convenience, the end face matched with the leakage-stopping ring 23 on the ring frame 212 in the installation cavity 13 is provided with smooth planes, as shown in fig. 4, specifically, the sealing surfaces where the water outlet hole 132 and the water inlet hole 131 are located in the installation cavity 13 are smooth end faces parallel to each other, as shown in fig. 5, and the leakage-stopping sealing ring 24 arranged on the sealing cover leakage-stopping ring frame 21 cannot leak when the smooth planes are matched with the ring frame 212 of the sealing cover leakage-stopping ring frame 21.

Specifically, when the valve core assembly 2 is installed into the valve body 1, the ring frame 212 drives the leakage stopping ring 23 and the leakage stopping ring sealing ring 24 to cut into the parallel sealing surfaces of the installation cavity 13 in parallel, when the ring frame 212 drives the leakage stopping ring 23 to cut into the positions of the water inlet 131 and the water outlet 132 to cover the water inlet 131 and the water outlet 132, the leakage stopping ring through holes, the water inlet 132 and the ball core through holes are overlapped to form a water flow channel, and because the leakage stopping ring sealing ring 24 is pressed in by being semi-immersed in the leakage stopping ring sealing ring groove, at the moment, the leakage stopping ring sealing ring 24 on the leakage stopping ring 23 forms interference fit with the sealing surfaces of the water inlet 131 and the water outlet 132 to seal the water inlet 131 and the water outlet 132. Two staggered objects must be parallel to slide freely, so the cut-off of the mounting opening 12 is also rectangular, the four sides of the mounting opening 12 are rounded in the mounting direction, and the mounting opening 12 is designed to have a more uniform stress sealing effect and a smaller packaging area from the shape of the rounded corners for the sealing ring.

When the valve core assembly 2 is assembled or disassembled with the valve body 1, it should be noted that the water outlet through hole of the valve core 221 of the ball core rod 22 needs to be correspondingly arranged with the leakage stopping ring 23 of the ring frame 212 before the assembly, so that the valve core assembly 2 can be successfully inserted into or separated from the mounting port 12 of the valve body 1, mainly because the valve core 221 of the ball core rod 22 is dislocated with the leakage stopping ring 23 of the ring frame 212 if the through hole of the valve core rod is the through hole, the spherical arc surface of the valve core 221 partially protrudes out of the leakage stopping ring 23, and because the ring frame 212 and the mounting port 12 are in an adaptive size, the protruding amount of the valve core 221 is just limited at the mounting port 12, so that the ring frame 212 can not be normally pulled out and inserted with the mounting port 12.

The two mounting manners of the valve element assembly 2 and the valve body 1 according to the present application are provided, and the above-mentioned structure is the mounting manner of the first embodiment, and the integral mounting structure is as shown in fig. 7, and the mounting of the first embodiment is to be performed from the upper end of the ball valve, and is the upper mounting structure.

In the second embodiment, the lower mounting structure is shown in fig. 12, that is, the mounting structure is mounted from the lower end of the ball valve, and as shown in fig. 11, the mounting manner is different from the first embodiment in that the mounting opening 12 is arranged at the lower end of the valve body 1, the ball rod through hole 211 is arranged in the valve body 1 by the mounting chamber 13 opposite to the top of the mounting opening 12, the sealing cover leakage-stopping ring frame 21 is arranged as a base, the sealing cover leakage-stopping ring frame comprises a ring frame body 212 and a sealing layer 214, the ring frame body 212 is consistent with the ring frame body 212 of the upper mounting structure, and is used for mounting the valve ball core 221, the bottom of the valve ball core 221 is propped against the bottom of the ring frame body 212, and the ball rod 222 arranged on the valve ball core 221 extends out from the upper opening of the ring frame body 212.

The installation opening 12 of the valve body 1 is sequentially provided with a spiral layer 121, a leveling layer 122 and a positioning layer 123, wherein the leveling layer 122 and the positioning layer 123 are used for sealing and assembling with the sealing layer 214 of the sealing cover leakage-stopping ring frame 21, and the bottom surface of the sealing layer 214 of the sealing cover leakage-stopping ring frame 21 is provided with a plane for spirally covering with the sealing cover spiral disc 14.

Further, a limit pile 28 is integrally disposed at the upper end of the valve body 1, and the limit pile 28 is located at the club through hole 211 and is connected with the club through hole 211 in a penetrating manner. Referring to fig. 11, the valve ball 221 is arranged to be flat-bottomed in cooperation with the bottom of the ring frame 212, so that the valve ball 221 can be seated on the ring frame 212 to be kept in position, and the ball rod 222 can be stably and easily threaded out of the ball rod through hole 211.

The lower assembling structure is as follows: after the valve core assembly 2 is assembled by inserting the valve ball core 221 into the ring frame 212, the valve core assembly 2 assembled by the valve core assembly is vertically upwards inserted into the mounting cavity 13 from the mounting opening 12 by the ball rod 222 until the ball rod 22 is wholly immersed into the mounting cavity 13 when the sealing layer 214 of the sealing cover anti-leakage ring frame 21 abuts against the positioning layer 123, and the ball rod 222 penetrates out of the mounting cavity 3 by the ball rod through hole 211 arranged on the valve body 1 and is mounted with the handle 3.

And then the screw layer 121 is screwed and abutted against the bottom surface of the sealing layer 214 by the sealing screw disk 14 from the mounting hole 12 of the lower assembly, so that the mounting is completed.

The cap screw 14 for the lower mounting is not provided with a mounting hole for the club 222 to be unseated, but a tool hole groove 141 is arranged in the middle of the outer side surface of the cap screw 14 for adapting an auxiliary tool to perform auxiliary dismounting rotation of the cap screw 14.

In the third embodiment of the present application, there is provided a socket switch assembly 4 for disassembly and replacement, as shown in fig. 6, the socket switch assembly 4 is mounted on sockets 11 of a valve body 1 coaxially distributed on both sides thereof, and may be mounted on one side into which a fluid medium flows in a direction of inflow thereof, or mounted on both sides thereof.

The socket switch assembly 4 comprises a socket piston plug 41, a switch control nut 42 and a limiting ring 43 which are sequentially arranged along the installation direction, wherein the socket piston plug 41 is sleeved on the switch control nut 42, and the limiting ring 43 is screwed to limit to form the socket switch assembly 4.

The socket piston plug 41 comprises a spherical plug 411 and a piston body 413, a socket 414 is arranged on one side of the piston body 413 opposite to the spherical plug 411 and is used as a joint part of a socket pipe, a socket through hole is formed in the socket 414 in a penetrating mode and is used for connecting a pipe socket channel, a limit retainer ring 45 is arranged at the joint of the socket 414 and the piston body 413, a limit ring screw tooth 415 is arranged on the side wall of the socket 414, the limit ring screw tooth 415 is used for being in screw connection with the limit ring 43, the limit ring 43 and the limit ring screw tooth 415 are in screw connection to limit the socket piston plug 41, and the socket piston plug 41 is installed and fixed on the switch control nut 42.

A push collar position 451 is formed at a distance between the stop collar 45 and the stop collar screw 415, and the push collar position 451 is used to switch the adaptation position of the push collar 421 after the control nut 42 is sleeved into the socket piston plug 41. A pushing retainer ring 421 is disposed at the rear of the switch control nut 42, the pushing retainer ring 421 is narrowed by an opening at the rear of the switch control nut 42 to form a hollow bayonet, and is used for inserting the socket piston plug 41 and movably clamping in the limit retainer ring 45 and the threaded limit ring 43, and the pushing retainer ring 421 pushes the limit retainer ring 45 and the limit ring 43 to drive the socket piston plug to move back and forth along with the forward and backward movement of the switch control nut 42.

The switch control nut 42 is screwed on the pipe of the socket 11 at the socket 11, the socket piston plug 41 is completely immersed in the pipe of the socket 11 at the socket 11, the switch control nut 42 is spirally matched with the pipe of the socket 11 to spirally advance or retreat to control the socket piston plug 41 to be positioned at a third position or a fourth position for controlling the on-off of the socket 11, and refer to fig. 8 or 10.

A T-shaped concave sealing seat 16 is arranged in a channel flow channel of one side of the socket 11 facing the socket piston plug 41, and the T-shaped concave sealing seat 16 and a spherical plug 411 of the socket piston plug 41 are propped against and closed or loose to be communicated. The piston body 413 is hollow for water passage and moves forward and backward in adaptation with the bellmouth runner, and a plurality of water outlets 412 are formed at the side surface of the spherical plug 411 of the bellmouth piston plug 41 for the through flow of the piston body 413.

The T-shaped concave sealing seat 16 is made of elastic sealing material such as rubber or silica gel, a sealing seat limiting groove for installing the T-shaped concave sealing seat 16 is arranged in a channel of the socket 11, which is away from the installation cavity 13, the T-shaped concave sealing seat 16 comprises a flange 161 and a concave blocking surface 162, the flange 161 is fixedly installed on the socket 11, and the T-shaped concave sealing seat 16 is pressed in and blocked in the sealing seat limiting groove in a pressing manner through the flange 161 for fixation. The concave plugging surface 162 is used for propping against the socket piston plug 41 to close the passage, when the socket piston plug 41 is located at the fourth position, the spherical plug 411 is in contact fit with the concave plugging surface 162 of the T-shaped concave sealing seat 16, the through hole of the flow channel of the T-shaped concave sealing seat 16 is plugged by the spherical plug 411, and along with further pressurization of the socket piston plug 41, the whole T-shaped concave sealing seat 16 is compacted and sealed on the sealing seat ring 111 to plug the water inlet and outlet holes, thereby completing the closing of the valve.

Two or more third sealing rings 44 are arranged on the piston body 413 of the socket piston plug 41 at intervals, an adapting channel is arranged on the socket 11 of the valve body 1 at the position where the third sealing rings 44 are arranged, the adapting channel is a travel channel of the third sealing rings 44, the travel channel and the third sealing rings 44 are in interference fit sealing, and when the socket piston plug 41 moves alternately at the third position and the fourth position, the third sealing rings 44 can move in the travel channel so as not to cause the third sealing rings 44 to run out of the socket 11, thereby causing sealing failure and leakage.

7-8, when the bellmouth piston plug 41 is in the third position, the bellmouth piston plug 41 is far away from the T-shaped concave sealing seat 16 arranged in the bellmouth 11, so that the flow passage of the bellmouth 11 is opened, the passage is in a normal circulation state, and when the bellmouth piston plug 41 is in the fourth position, the bellmouth piston plug 41 is abutted against the T-shaped concave sealing seat 16 in the bellmouth 11, so that the flow passage of the bellmouth 11 is closed, and the passage is in a blocking circulation state.

It should be noted that, the water receiving groove 19 is disposed in the flow channel of the socket 11 near the socket piston plug 41, as shown in fig. 5; the water receiving groove 19 and the T-shaped concave sealing seat 16 are arranged in sequence along the inward movement direction of the socket piston plug 41. The water receiving groove 19 is formed because if the wall of the water outlet 412 is not enlarged, water flowing from the periphery of the piston ball is not received, and thus the water cannot flow out from the concave spherical through hole of the T-shaped concave sealing seat 16.

A sealing seat ring 111 is arranged at the position, facing the water outlet 132 or the water inlet 131, of the faucet 11 of the valve body 1, the sealing seat ring 111 is formed by narrowing and protruding at the water inlet and outlet of the faucet, as shown in fig. 5, when the switch control nut 42 pushes the faucet piston plug 41 to press the T-shaped concave sealing seat 16 in a spiral manner, after the spherical plug 411 of the piston body 431 is in contact fit with the concave sealing surface 162 of the T-shaped concave sealing seat 16, the flow passage through hole of the T-shaped concave sealing seat 16 is sealed by the spherical plug 411, and along with further pressurization of the faucet piston plug 41, the whole T-shaped concave sealing seat 16 is compacted and sealed on the sealing seat ring 111, so that the water inlet and the water outlet are sealed, and the valve is closed.

The pipe of the socket 11 is provided with a section of thread installation end 17, the thread travel of the thread installation end 17 is smaller than the thread travel of the switch control nut 42, the switch control nut 42 and the butt joint thread installation end 17 are screwed to the tightest place to be closed, at the moment, the socket piston plug 41 is positioned at the fourth position, the switch control nut 42 is rotated and loosened until the limit pin 46 outwards rotates to abut against the bulge of the thread installation end 17 to be opened, and at the moment, the socket piston plug 41 is positioned at the third position.

An annular groove 18 is circumferentially provided at the socket 11 beyond the screw mounting end 17, the annular groove 18 being formed by a height difference between a screw protrusion of the screw mounting end 17 and a pipe end face of the body of the socket 11, a space between a side wall of the valve body 1 and the screw mounting end 17 provided on the socket 11 being a width of the annular groove 18, and a limit pin 46 being provided at a screw edge of the switch control nut 42.

When the socket piston plug 41 is located at the third position, the switch control nut 42 is screwed to the limit pin 46 by the thread installation end 17 to pass through the thread travel of the thread installation end 17 and is screwed into the annular groove 18 downwards, and is abutted against the protruding end face of the thread installation end 17, so that the limit pin 46 and the protruding end face of the thread installation end 17 can be abutted against and stopped rotating when the switch control nut 42 rotates, the socket piston plug 41 is ensured not to fall down due to rotation of the switch control nut 42, so that leakage accidents are avoided, and safety is ensured.

When the socket piston plug 41 is required to be moved to the fourth position, the switch control nut 42 continues to be screwed to the tightest position with the screw stroke of the screw mounting end 17, and the limit pin 46 moves back and forth along the width of the annular groove 18 during the screwing process to give way to the screw movement of the switch control nut 42.

The power assisting hole 47 is formed in the circumferential wall of the switch control nut 42 along the circumferential direction, a screwdriver or other stick tools can be inserted into the hole, and if the switch control nut 42 is not smooth to rotate or difficult to rotate, the power assisting rotation can be easier to insert by using the stick tools such as the screwdriver.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The modularized three-valve double-password ball valve comprises a valve body and a valve core assembly; the method is characterized in that: the valve body and the valve core component are arranged in a modularized mode: the valve body is provided with a mounting port perpendicular to a flow passage of the valve body, and a mounting cavity is arranged in the middle section of the flow passage and is communicated with the mounting port;

2. The modular three-valve dual-union ball valve of claim 1, wherein: the valve body is provided with a socket switch assembly at one side or two sides of the socket on two sides of the flow passage;

3. The modular three-valve dual-union ball valve of claim 1, wherein: the sealing cover leakage-stopping ring frame is sequentially provided with a ring frame body, a mounting body and a sealing layer along the mounting direction, and a club through hole which penetrates through the mounting body and the sealing layer is formed to be matched with the club;

4. The modular three-valve dual-union ball valve of claim 1, wherein; the mounting opening is arranged at the lower end of the valve body, the sealing cover leakage-stopping ring frame is sequentially provided with a ring frame body and a sealing layer along the mounting direction, and a club through hole is arranged on one side of the valve body opposite to the mounting opening in a penetrating way to be matched with the club;

5. The modular three-valve double-password ball valve of claim 3 or 4, wherein; the mounting opening is provided with a rectangular round corner, a leveling layer is arranged at the mounting position of the sealing layer, and spiral layers and positioning layers are arranged on two sides of the leveling layer along the mounting direction;

6. The modular three-valve dual-union ball valve of claim 5, wherein: a friction reducing ring is arranged at the adapting position of the sealing cover screw disc and the mounting port;

7. The modular three-valve dual-union ball valve of claim 5, wherein: the section of the mounting port is rectangular, four groups of screw teeth are arranged in the screw layer of the mounting port in rectangular four sides, and the screw teeth are of arc structures and are matched with the screw structures of the screw disc of the sealing cover.

8. The modular three-valve dual-union ball valve of claim 5, wherein: a plurality of first sealing rings are distributed on the ball rod and are used for being in interference fit with the ball rod through holes;

a sealing groove is formed in the sealing layer, and a second sealing ring is sleeved on the sealing groove and is in interference fit with the leveling layer;

9. The modular three-valve dual-union ball valve of claim 1, wherein: the leakage stopping ring arranged in the ring seat is provided with a sealing ring groove on one surface facing away from the valve ball core, and a leakage stopping sealing ring is sleeved in the sealing ring groove.

10. The modular three-valve dual-union ball valve of claim 1, wherein: sealing surfaces of the water outlet hole and the water inlet hole in the mounting cavity are smooth end surfaces which are parallel to each other so as to be matched with the ring frame body.

11. The modular three-valve dual-union ball valve of claim 2, wherein: the socket piston plug comprises a spherical plug and a piston body, and a connecting pipe socket is arranged on one side of the piston body opposite to the spherical plug; the connecting pipe socket is hollow;

12. The modular three-valve dual-union ball valve of claim 11, wherein: a limiting retainer ring is arranged at the joint of the connecting pipe socket and the piston body, and a bayonet is narrowed inwards at the opening at the rear end of the switch control nut;

13. The modular three-valve dual-union ball valve of claim 2, wherein: be provided with a plurality of third sealing washer on the piston body, the bellmouth adaptation of valve body the third sealing washer is provided with the adaptation passageway, the adaptation passageway with third sealing washer interference fit.

14. The modular three-valve dual-union ball valve of claim 13, wherein: the adapting channel is adapted to the travel of the third sealing ring along with the movement of the socket piston plug.

15. The modular three-valve dual-union ball valve of claim 11, wherein: the bellmouth is provided with a T-shaped concave sealing seat in a flow passage at one side facing the bellmouth piston plug, the bellmouth piston plug is provided with a plurality of openings at the side surface of the spherical plug, the piston body is a hollow pipeline, and a channel is formed by the openings, the piston body and the connecting pipe bellmouth for through flow;

the T-shaped concave sealing seat is provided with a concave sealing surface on one side facing the socket piston plug and is used for propping against and sealing with the plug of the socket piston plug so as to control the socket to close and stop.

16. The modular three-valve dual-union ball valve of claim 15, wherein: a sealing seat limiting groove is formed in the runner of the bellmouth in a manner of being matched with the T-shaped concave sealing seat, and a T-shaped limiting flange of the T-shaped concave sealing seat is clamped into the sealing seat limiting groove to be fixed;

and a water flow hole is arranged in the T-shaped concave sealing seat.

17. The modular three-valve dual-union ball valve of claim 15, wherein: a sealing seat ring is arranged at the socket, the water inlet and the water outlet of the socket are narrowed and raised to form the sealing seat ring, and water flows in the sealing seat ring;

18. The modular three-valve dual-union ball valve of claim 15, wherein: a water containing groove is arranged in the runner of the bellmouth and close to the bellmouth piston plug; and a water containing groove and a T-shaped concave sealing seat are sequentially arranged along the inward movement direction of the socket piston plug.

19. The modular three-valve dual-union ball valve of claim 2, wherein: a section of thread installation end is arranged on the pipeline at the socket, and the thread travel of the thread installation end is smaller than that of the switch control nut;

20. The modular three-valve dual-union ball valve of claim 19, wherein: the switch control nut is provided with a limit pin at the edge of a screw hole; an annular groove is circumferentially arranged at the socket and passes beyond the threaded mounting end;

21. The modular three-valve dual-union ball valve of claim 20, wherein: the annular groove is matched with the limit pin to limit the switch control nut to unscrew from the threaded mounting end;

22. The modular three-valve dual-union ball valve of claim 2, wherein: and a plurality of power-assisted holes are formed in the periphery of the switch control nut, and the switch control nut is matched with a club tool to assist in rotating.