CN109764166B - Conveniently-adjusted anti-backflow check valve and operation method thereof - Google Patents
Conveniently-adjusted anti-backflow check valve and operation method thereof Download PDFInfo
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- CN109764166B CN109764166B CN201910182998.4A CN201910182998A CN109764166B CN 109764166 B CN109764166 B CN 109764166B CN 201910182998 A CN201910182998 A CN 201910182998A CN 109764166 B CN109764166 B CN 109764166B
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Abstract
The invention discloses a conveniently-adjusted anti-reflux check valve and an operation method thereof, and the conveniently-adjusted anti-reflux check valve comprises a sealing valve body, a lifting piston, a support clamping seat splicing clamping ring and a sealing rotating shaft, wherein a rotary connecting pipe is fixedly arranged on the outer surface of the front end of the sealing valve body, the sealing valve body is communicated and connected with a communicating pipe through the rotary connecting pipe, locking joints are fixedly arranged on the outer surfaces of two ends of the communicating pipe, a butt joint sleeve is movably sleeved on the upper part of each locking joint, the locking joints and the butt joint sleeve are fixedly butted through threaded bases, and a plurality of groups of limiting circular grooves are formed in the inner side of the upper; the conveniently-adjusted backflow-preventing check valve and the operation method thereof enable the check valve to have a pressure adjusting structure, increase the application range of the check valve, enable the installed check valve to be capable of performing multi-angle rotation operation, increase the flexibility of the check valve, enable the installation operation of the check valve to be more convenient and fast, and avoid the looseness phenomenon of the check valve.
Description
Technical Field
The invention belongs to the technical field of valves, particularly relates to a reverse-flow check valve, and more particularly relates to a conveniently-adjusted anti-reverse-flow check valve and an operation method thereof.
Background
The check valve is a valve whose opening and closing member is a circular valve flap and can be actuated by self weight and medium pressure to block back flow of medium, belonging to the field of automatic valve, also called check valve, one-way valve, backflow valve or isolating valve, and its valve flap movement mode can be divided into lift type and swing type, the lift type check valve is similar to the structure of stop valve, and only lacks valve rod for driving valve flap, the medium can be flowed in from inlet end (lower side) and flowed out from outlet end (upper side), when the inlet pressure is greater than the sum of valve flap weight and its flow resistance, the valve can be opened, otherwise, when the medium is back-flowed, the valve can be closed, and the swing type check valve has a valve flap which is obliquely placed and can be rotated around shaft, and its working principle is similar to that of lift type check valve, and its check. The stop valve and the stop valve are combined for use, and the safety isolation effect can be achieved. The defects are that the resistance is large, and the sealing performance is poor when the valve is closed;
there is certain drawback in current check valve equipment in the use, traditional check valve does not have the pressure regulation structure, make single classification's check valve can only produce medium pressure to its self weight and block the operation, and can't carry out the regulation operation of different pressure according to the user's demand, traditional check valve passes through bolt formula fixed knot and constructs the installation operation between its and the pipeline, make the installation operation of check valve comparatively hard, the installation degree of difficulty of check valve has been increased, traditional check valve does not have the rotation type and adjusts the structure, make the check valve after the installation is fixed, the user can't carry out the rotation regulation operation of multi-angle, the flexibility ratio in the check valve use has been reduced, bring certain adverse effect for the user.
Disclosure of Invention
In order to overcome the technical problems, the invention aims to provide an anti-backflow check valve convenient to adjust and an operation method thereof, wherein a lifting adjusting rod is arranged, the lifting adjusting rod is matched with a spring sleeve to change the stress range of a lifting piston, so that the check valve has a pressure adjusting structure, the check valve can perform non-return operation on water flows with different pressures, the application range of the check valve is effectively increased, the adjustment operation is more convenient and faster, and a better anti-backflow effect is achieved, a rotary connecting pipe is arranged, the use angle between a sealing valve body and a connecting pipeline is changed by using a first sleeve and a second sleeve of the rotary connecting pipe, so that the connecting pipeline can perform multi-angle rotary operation after being fixed, the check valve is more flexible to use, and a latch ferrule is arranged, so that in the butt joint fixing operation process of a locking joint, utilize the fixed chute on locking joint upper portion to cooperate the latch of latch lasso bottom to accomplish relatively fixed operation to avoid not hard up phenomenon to appear in this check valve after butt joint operation, make the butt joint operation of this check valve more firm, through setting up fixed cassette, utilize the revolution mechanic cooperation of fixed cassette to remove the pipeline butt joint operation that the buckle accomplished this check valve, make its butt joint installation more convenient, reduce its installation degree of difficulty.
The purpose of the invention can be realized by the following technical scheme:
an anti-reflux check valve convenient to adjust comprises a sealing valve body, a lifting piston, a supporting clamping seat splicing clamping ring and a sealing rotating shaft, wherein a rotating connecting pipe is fixedly arranged on the outer surface of the front end of the sealing valve body, the sealing valve body is communicated with the communicating pipe through a rotary connecting pipe, the outer surfaces of the two ends of the communicating pipe are respectively and fixedly provided with a locking joint, the upper part of the locking joint is movably sleeved with a butt joint sleeve, the locking joint and the butt joint sleeve are fixed in a butt joint mode through a threaded base, a plurality of groups of limiting circular grooves are arranged on the inner side of the upper portion of the butt joint sleeve in a penetrating mode, a latch ferrule is fixedly sleeved between the locking joint and the butt joint sleeve, the latch ferrule and the butt joint sleeve are butt-jointed and fixed through a limiting guide post, the outer surface of the upper part of the locking joint is provided with a fixed chute, and the outer surfaces of two ends of the sealing valve body are fixedly provided with butt flanges;
the lower part of the sealing valve body is fixedly sleeved with a right-angle turning head, the sealing valve body and the right-angle turning head are fixedly butted through a butt flange, the outer surface of one end of the right-angle turning head is fixedly provided with a fixed clamping seat, the inner side of the lower part of the fixed clamping seat is movably sleeved with a splicing clamping ring, the outer surface of the upper end of the splicing clamping ring is fixedly provided with a thread footstock, the inner side of the thread footstock is fixedly provided with two groups of movable inner buckles, the upper part of the fixed clamping seat is movably provided with two groups of movable buckles, the lifting piston is movably arranged on the inner surface of the sealing valve body, the lifting piston is movably connected with the sealing valve body through a lifting adjusting rod, the outer surface of the lifting adjusting rod is movably sleeved with a spring sleeve, the outer surface of the lifting adjusting rod is fixedly, and the lifting piston is movably connected with the lifting adjusting rod through a bearing.
As a further scheme of the invention, a sealing washer is fixedly installed on the outer surface of the lower end of the lifting piston, the lifting piston and the sealing washer are fixed through viscose glue, a support clamping seat is fixedly installed on the upper portion of the butt flange, the butt flange and the support clamping seat are fixedly butted through a fixed connecting rod, a sealing rotating shaft is fixedly sleeved on the outer surface of the upper end of the butt flange, sealing rings are arranged on the inner sides of two ends of the sealing rotating shaft, an operating hand wheel is movably installed on the upper portion of the support clamping seat, and the support clamping seat and the operating hand wheel are movably butted through a threaded clamping bolt.
As a further scheme of the invention, a sealing conical plug is fixedly arranged on the outer surface of the lower end of the sealing rotating shaft, a connecting clamping mouth is fixedly sleeved on the lower part of the sealing conical plug, a fixed lantern ring is fixedly sleeved between the connecting clamping mouth and the sealing conical plug, and a clamping top head is fixedly arranged at the lower end of the connecting clamping mouth.
As a further scheme of the invention, a protection sleeve ring is fixedly sleeved on the outer surface of the sealing valve body, the sealing valve body and the protection sleeve ring are fixedly butted through a clamping groove, a plurality of groups of cushion pads are arranged on the inner side of the protection sleeve ring, a dredging pipe is fixedly arranged on the outer surface of the lower end of the right-angle turning head, and sealing grooves are formed in the inner sides of two ends of the right-angle turning head.
As a further scheme of the invention, a connecting bolt is fixedly mounted on the outer surface of the upper end of the lifting adjusting rod, guide posts are fixedly mounted on the outer surfaces of two sides of the connecting bolt, a first sleeve is movably sleeved on the inner surface of the lower part of the rotating connecting pipe, a second sleeve is movably sleeved on the inner surface of the upper part of the rotating connecting pipe, and limiting clamping bolts are fixedly mounted on the outer surfaces of the first sleeve and the second sleeve.
As a further scheme of the invention, sealing ferrules are fixedly sleeved on one sides of the outer surfaces of the first sleeve and the second sleeve, which are close to the limiting clamping bolts, two groups of rotary inner grooves are formed in the inner surface of the inner side of the rotary connecting pipe, and the rotary connecting pipe is in butt joint with the second sleeve through the rotary inner grooves and the first sleeve.
As a further scheme of the invention, two groups of second clamping rings are fixedly sleeved on the inner surface of the upper part of the support clamping seat, the support clamping seat is fixedly butted with the fixed connecting rod through the second clamping rings, a butting rotating shaft is fixedly arranged on the outer surface of the bottom of the sealing rotating shaft, and the sealing rotating shaft and the butting rotating shaft are fixedly butted through the first clamping rings.
As a further scheme of the invention, a butt joint clamping rod is fixedly installed on the outer surface of the lower end of the movable buckle, the movable buckle and the butt joint clamping rod are in butt joint and fixed through a rotating pin, the butt joint clamping rod and the splicing clamping ring are in butt joint and fixed through a movable inner buckle, and the fixed clamping seat and the threaded top seat are in occlusion and fixed through threads.
As a further scheme of the invention, a lifting chute is formed in the inner surface of the front part of the fixed clamping seat, the locking joint and the clamping tooth ferrule are engaged and fixed through the fixed chute, a clamping groove is formed in the inner surface of the front part of the movable clamp, a spring top ring is arranged on the inner side of the movable clamp, and an arc-shaped notch is formed in the middle of the outer surface of the rotary connecting pipe.
An operation method of an anti-backflow check valve convenient to adjust comprises the following specific use operation steps:
the method comprises the following steps: mounting operation, namely, butting and fixing a splicing snap ring for fixing a clamp seat and one end of a right-angle turning head by using a thread fixing structure, clamping two groups of movable buckles for fixing the clamp seat at clamping grooves of butted pipelines, and clockwise rotating the splicing snap ring to enable the splicing snap ring to pull butt clamping rods of the movable buckles to move inwards by moving an inner buckle, so that the butt fixing operation between the two groups of pipelines is completed;
step two: adjusting operation, namely rotating an operating hand wheel, driving a lifting adjusting rod to perform connecting shaft rotation operation by using a threaded clamping bolt of the operating hand wheel, and in the rotating process of the operating hand wheel, moving a fixed blocking piece downwards, increasing the pressure between a spring sleeve and a lifting piston and adjusting the stress range of the lifting piston;
step three: and rotating the first sleeve and the second sleeve through two groups of rotating inner grooves of the rotating connecting pipe, and adjusting the connecting angle between the sealing valve body and the communicating pipe by utilizing the relative rotation between the first sleeve and the second sleeve.
The invention has the beneficial effects that:
1. by arranging the lifting adjusting rod, when a user needs to perform pressure adjustment operation on the check valve, the user can rotate the operating hand wheel, the fixed blocking piece is driven to move up and down by utilizing the threaded blocking pin of the operating hand wheel, when the fixed blocking piece moves downwards, the spring sleeve is extruded downwards, the pressure at the top of the lifting piston is boosted, when the fixed blocking piece moves upwards, the spring sleeve is upwards bounced to reduce the pressure at the top of the lifting piston, the lifting adjusting rod is matched with the spring sleeve to change the stress range of the lifting piston, so that the check valve has a pressure adjusting structure, a bearing in the lifting piston can enable the lifting piston to be in a relatively fixed state in the rotating process of the lifting adjusting rod to avoid the synchronous movement phenomenon, the check valve can perform non-return operation on water flows with different pressures, and the application range of the check valve is effectively increased, the check valve has the advantages that the adjusting operation is more convenient and faster, the better anti-backflow effect is achieved, the sealing performance of the sealing washer can be improved when the lifting piston is closed, and the leakage phenomenon of the check valve is avoided.
2. Through setting up rotatory takeover, after the user carries out the pipeline butt joint operation to this check valve, through the rotatory inside groove in the rotatory takeover, make first sleeve pipe and second sleeve pipe can do the relative rotation operation, utilize sealed lasso can rotate the in-process at first sleeve pipe and second sleeve pipe and keep the gas tightness between check valve and the communicating pipe, first sheathed tube one end and check valve butt joint, second sheathed tube one end and communicating pipe butt joint, through the relative rotation between first sleeve pipe and the second sleeve pipe, adjust the installation angle between check valve and the communicating pipe, change the use angle between sealed valve body and the connecting tube, make the connecting tube can carry out the multi-angle rotation operation after fixed, make the use of this check valve more nimble.
3. Through setting up the latch lasso, when the user carries out the pipeline butt joint operation to this check valve, it fixes to connect with the right angle turn round through the thread tightening structure locking, through cup jointing the butt joint sleeve pipe on the pipeline, butt joint sleeve pipe and locking connect and dock fixedly, connect at locking and dock in the fixed operation process, utilize the latch of the fixed chute cooperation latch lasso bottom on locking joint upper portion to accomplish the relatively fixed operation, thereby avoid this check valve not hard up phenomenon to appear after the butt joint operation, the latch lasso utilizes spacing guide pillar to play spacing fixed action, avoid the latch lasso to appear rotating the phenomenon between locking joint and butt joint sleeve pipe, make the butt joint operation of this check valve more firm.
4. Through setting up fixed cassette, use in two sets of removal buckles of fixed cassette with the one end card of pipeline, rotate the concatenation snap ring, remove interior knot through the pulling of concatenation snap ring for remove the pipeline butt joint operation that the buckle was accomplished to interior removal after the fixed pipeline of buckle, the revolution mechanic cooperation that utilizes fixed cassette removed the buckle, make its butt joint installation more convenient, reduce its installation degree of difficulty.
Drawings
The invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic view showing the overall structure of an anti-backflow type check valve according to the present invention, which is easy to adjust.
Fig. 2 is an exploded view of an adjustable check valve attachment spigot of the present invention.
FIG. 3 is a side view of a conveniently adjustable check valve of the present invention.
Fig. 4 is an overall structural view of a check valve rotary-lift piston of the present invention, which is easy to adjust.
Fig. 5 is an exploded view of the inside of a rotary nipple of an anti-backflow type check valve according to the present invention, which is easily adjusted.
Fig. 6 is an exploded view of a conveniently adjustable check valve locking fitting of the present invention.
Fig. 7 is an overall structural view of an anti-backflow type check valve supporting cartridge which is convenient to adjust according to the present invention.
FIG. 8 is an exploded view of a split snap ring of an anti-backflow check valve of the present invention that is easily adjustable.
In the figure: 1. a communicating pipe; 2. locking the joint; 3. fixing the connecting rod; 4. a lifting adjusting rod; 5. a thread clamping bolt; 6. operating a hand wheel; 7. supporting the card holder; 8. sealing the rotating shaft; 9. butting flanges; 10. sealing the valve body; 11. rotating the adapter tube; 12. fixing the card holder; 13. moving the buckle; 14. clamping the top head; 15. connecting the clamping mouth; 16. a fixed collar; 17. sealing the conical plug; 18. a protective collar; 19. turning the head at right angle; 20. a sealing gasket; 21. a lift piston; 22. a bearing; 23. a spring housing; 24. fixing a baffle plate; 25. a guide post; 26. a connecting bolt; 27. a first sleeve; 28. a limiting clamping bolt; 29. a second sleeve; 30. an arc-shaped notch; 31. rotating the inner tank; 32. sealing the ferrule; 33. fixing the chute; 34. a latch ferrule; 35. a limiting guide post; 36. butting a sleeve; 37. a limiting circular groove; 38. a threaded base; 39. a first collar; 40. butting the rotating shafts; 41. a second collar; 42. splicing the snap rings; 43. moving the inner buckle; 44. a threaded top seat; 45. butting the clamping rods; 46. and rotating the pin.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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.
As shown in fig. 1-8, an anti-reflux check valve convenient for adjustment comprises a sealing valve body 10, a lifting piston 21, a supporting clamping seat 7, a splicing clamping ring 42 and a sealing rotating shaft 8, wherein a rotary connecting pipe 11 is fixedly installed on the outer surface of the front end of the sealing valve body 10, the sealing valve body 10 is communicated with a communication pipe 1 through the rotary connecting pipe 11, locking connectors 2 are fixedly installed on the outer surfaces of both ends of the communication pipe 1, a butt-joint sleeve 36 is movably sleeved on the upper portion of each locking connector 2, the locking connectors 2 are fixedly butted with the butt-joint sleeve 36 through threaded bases 38, a plurality of groups of limiting circular grooves 37 are formed in the inner side of the upper portion of the butt-joint sleeve 36, a latch ferrule 34 is fixedly sleeved between the locking connectors 2 and the butt-joint sleeve 36, the latch ferrule 34 is fixedly butted with the butt-joint sleeve 36 through limiting guide pillars 35, the locking joint 2 plays a role in locking and fixing after rotating, and the outer surfaces of the two ends of the sealing valve body 10 are fixedly provided with butt flanges 9;
the lower part of the sealing valve body 10 is fixedly sleeved with a right-angle turning head 19, the sealing valve body 10 and the right-angle turning head 19 are fixedly butted through a butting flange 9, a fixed clamping seat 12 is fixedly arranged on the outer surface of one end of the right-angle turning head 19, a splicing clamping ring 42 is movably sleeved on the inner side of the lower part of the fixed clamping seat 12, a threaded top seat 44 is fixedly arranged on the outer surface of the upper end of the splicing clamping ring 42, two groups of movable inner buckles 43 are fixedly arranged on the inner side of the threaded top seat 44, two groups of movable buckles 13 are movably arranged on the upper part of the fixed clamping seat 12, a lifting piston 21 is movably arranged on the inner side inner surface of the sealing valve body 10, the lifting piston 21 is movably connected with the sealing valve body 10 through a lifting adjusting rod 4, the lifting piston 21 plays a main intercepting and non-return role, a spring sleeve 23 is movably sleeved on the outer surface, a bearing 22 is fixedly arranged on the inner surface of the lifting piston 21, and the lifting piston 21 is movably connected with the lifting adjusting rod 4 through the bearing 22.
The outer surface of the lower end of the lifting piston 21 is fixedly provided with a sealing washer 20, the lifting piston 21 and the sealing washer 20 are fixed through viscose glue, the upper part of the butt flange 9 is fixedly provided with a supporting clamping seat 7, the butt flange 9 and the supporting clamping seat 7 are fixedly butted through a fixed connecting rod 3, the outer surface of the upper end of the butt flange 9 is fixedly sleeved with a sealing rotating shaft 8, the inner sides of the two ends of the sealing rotating shaft 8 are respectively provided with a sealing washer, the upper part of the supporting clamping seat 7 is movably provided with an operating hand wheel 6, the supporting clamping seat 7 and the operating hand wheel 6 are movably butted through a threaded clamping bolt 5, and the sealing washer 20.
The outer fixed surface of the lower end of the sealing rotating shaft 8 is provided with a sealing conical plug 17, the lower part of the sealing conical plug 17 is fixedly sleeved with a connecting clamp mouth 15, a fixed lantern ring 16 is fixedly sleeved between the connecting clamp mouth 15 and the sealing conical plug 17, the lower end of the connecting clamp mouth 15 is fixedly provided with a clamping top head 14, and the clamping top head 14 plays a role in butt joint and fixation.
The fixed cover of surface of sealing valve body 10 has connect the protection lantern ring 18, and through the draw-in groove butt joint fixed between sealing valve body 10 and the protection lantern ring 18, the inboard of the protection lantern ring 18 is equipped with a plurality of groups blotter, and the lower extreme fixed surface of right angle turn round 19 installs dredging pipe, and the seal groove has all been seted up to right angle turn round 19's both ends inboard, opens dredging pipe, can play the mediation effect to right angle turn round 19.
The outer fixed surface of the upper end of the lifting adjusting rod 4 is provided with a connecting bolt 26, the outer surfaces of the two sides of the connecting bolt 26 are fixedly provided with guide posts 25, the inner surface of the lower part of the rotary connecting pipe 11 is movably sleeved with a first sleeve 27, the inner surface of the upper part of the rotary connecting pipe 11 is movably sleeved with a second sleeve 29, the outer surfaces of the first sleeve 27 and the second sleeve 29 are fixedly provided with limiting clamping bolts 28, and the rotary connecting pipe 11 plays a role in fixing and transferring.
The outer surfaces of the first sleeve 27 and the second sleeve 29 are respectively fixedly sleeved with a sealing ferrule 32 on one side close to the limiting clamping bolt 28, two groups of rotary inner grooves 31 are formed in the inner surface of the rotary connecting pipe 11, the rotary connecting pipe 11 is fixedly butted with the second sleeve 29 through the rotary inner grooves 31 and the first sleeve 27, and the sealing ferrule 32 can increase the air tightness of the first sleeve 27 and the second sleeve 29.
Two groups of second clamping rings 41 are fixedly sleeved on the inner surface of the upper portion of the supporting clamping seat 7, the supporting clamping seat 7 is fixedly in butt joint with the fixed connecting rod 3 through the second clamping rings 41, a butt joint rotating shaft 40 is fixedly installed on the outer surface of the bottom of the sealing rotating shaft 8, the sealing rotating shaft 8 and the butt joint rotating shaft 40 are fixedly in butt joint through the first clamping rings 39, and friction force generated in the rotating process of the butt joint rotating shaft 40 can be reduced.
The outer surface of the lower end of the movable buckle 13 is fixedly provided with a butt joint clamping rod 45, the movable buckle 13 and the butt joint clamping rod 45 are fixedly butted through a rotating pin 46, the butt joint clamping rod 45 and the splicing clamping ring 42 are fixedly butted through a movable inner buckle 43, the fixed clamping seat 12 and the threaded top seat 44 are fixedly meshed through threads, and the butt joint clamping rod 45 plays a role in fixing the splicing clamping ring 42.
The lifting sliding groove is formed in the inner surface of the front portion of the fixed clamping seat 12, the locking connector 2 and the latch ferrule 34 are fixedly meshed through the fixed chute 33, the clamping groove is formed in the inner surface of the front portion of the movable buckle 13, the spring top ring is arranged on the inner side of the movable buckle 13, the arc-shaped notch 30 is formed in the middle of the outer surface of the rotary connecting pipe 11, and the spring top ring plays a role in elastic reset.
An operation method of an anti-backflow check valve convenient to adjust comprises the following specific use operation steps:
the method comprises the following steps: mounting operation, namely, butting and fixing the splicing snap ring 42 of the fixed clamp seat 12 and one end of the right-angle rotary head 19 by using a thread fixing structure, clamping two groups of movable buckles 13 of the fixed clamp seat 12 at clamping grooves of butted pipelines, and clockwise rotating the splicing snap ring 42 to enable the splicing snap ring 42 to pull butt-joint clamping rods 45 of the movable buckles 13 to move inwards through movable inner buckles 43 so as to finish butting and fixing operation between the two groups of pipelines;
step two: adjusting operation, namely rotating an operating hand wheel 6, driving a lifting adjusting rod 4 to perform connecting shaft rotation operation by using a threaded clamping bolt 5 of the operating hand wheel 6, and in the rotating process of the operating hand wheel 6, moving a fixed blocking piece 24 downwards, increasing the pressure between a spring sleeve 23 and a lifting piston 21 and adjusting the stress range of the lifting piston 21;
step three: the rotation operation rotates the first sleeve 27 and the second sleeve 29 through the two sets of the internal rotation grooves 31 of the rotary connection pipe 11, and adjusts the connection angle between the seal valve body 10 and the communication pipe 1 by rotating the relative rotation between the first sleeve 27 and the second sleeve 29.
When the sealing valve is used, a user uses the rotary connecting pipe 11 to butt the sealing valve body 10 with the communication pipe 1, after liquid enters the sealing valve body 10 through the rotary connecting pipe 11, the liquid is influenced by liquid pressure, when the liquid pressure is greater than the pressure of the lifting piston 21, the lifting piston 21 is lifted upwards to enable the liquid to flow out from the right-angle rotary head 19, when the liquid pressure is less than the pressure of the lifting piston 21, the lifting piston 21 moves downwards to enable the sealing valve body 10 to be in a closed state to play a main non-return role, the splicing clamping ring 42 for fixing the clamping seat 12 is butt-jointed and fixed with one end of the right-angle rotary head 19 by using the thread fixing structure, two groups of movable clamping buckles 13 for fixing the clamping seat 12 are clamped at clamping grooves of butt-jointed pipelines, the splicing clamping ring 42 is rotated clockwise, so that the splicing clamping ring 42 pulls a butt-jointing clamping rod 45 of the movable clamping buckle 13 to move inwards through, the operation hand wheel 6 is rotated, the lifting adjusting rod 4 is driven to be connected with the shaft to rotate by the aid of the threaded clamping bolt 5 of the operation hand wheel 6, the fixing blocking piece 24 moves downwards in the rotating process of the operation hand wheel 6, pressure between the spring sleeve 23 and the lifting piston 21 is increased, the stress range of the lifting piston 21 is adjusted, the first clamping ring 39 and the second clamping ring 41 can effectively increase air tightness of the rotary connecting pipe 11, and leakage of the rotary connecting pipe is avoided.
The invention aims to provide a conveniently-adjusted backflow-preventing check valve and an operation method thereof, by arranging a lifting adjusting rod 4, when a user needs to perform pressure adjustment operation on the check valve, the user can rotate an operating hand wheel 6, a thread clamping bolt 5 of the operating hand wheel 6 is used for driving a fixed blocking piece 24 to move up and down, when the fixed blocking piece 24 moves down, a spring sleeve 23 is pressed downwards to boost the pressure at the top of a lifting piston 21, when the fixed blocking piece 24 moves upwards, the spring sleeve 23 is bounced upwards to reduce the pressure at the top of the lifting piston 21, the lifting adjusting rod 4 is used for matching with the spring sleeve 23 to change the stress range of the lifting piston 21, so that the check valve has a pressure adjusting structure, a bearing 22 in the lifting piston 21 can enable the lifting piston 21 to be in a relatively fixed state in the rotating process of the lifting adjusting rod 4, the phenomenon of synchronous movement is avoided, so that the check valve can perform check operation on water flows with different pressures, the application range of the check valve is effectively enlarged, the adjustment operation of the check valve is more convenient and faster, a better anti-backflow effect is achieved, the sealing performance of the sealing washer 20 can be improved when the lifting piston 21 is closed, the leakage phenomenon of the check valve is avoided, the sealing ferrule 32 can be used for keeping the air tightness between the check valve and the communication pipe 1 in the rotation process of the first sleeve 27 and the second sleeve 29 through the rotary inner groove 31 in the rotary connecting pipe 11 after a user performs pipeline butt joint operation on the check valve by arranging the rotary connecting pipe 11, one end of the first sleeve 27 is in butt joint with the check valve, one end of the second sleeve 29 is in butt joint with the communication pipe 1, and through the relative rotation between the first sleeve 27 and the second sleeve 29, the installation angle between the check valve and the communication pipe 1 is adjusted, the use angle between the sealing valve body 10 and the connecting pipeline is changed, so that the connecting pipeline can be rotated in multiple angles after being fixed, the use of the check valve is more flexible, by arranging the latch ferrule 34, when a user carries out the pipeline butt joint operation on the check valve, the locking joint 2 and the right-angle swivel 19 are fixed through a thread fixing structure, the butt joint sleeve 36 is sleeved on the pipeline, the butt joint sleeve 36 and the locking joint 2 are in butt joint and fixed, in the butt joint and fixing operation process of the locking joint 2, the fixed chute 33 at the upper part of the locking joint 2 is matched with the latch at the bottom of the latch ferrule 34 to complete the relative fixing operation, so that the check valve is prevented from loosening after the butt joint operation, and the latch ferrule 34 plays a limiting fixing role by utilizing the limiting guide pillar 35, avoid latch lasso 34 to appear rotating phenomenon between locking joint 2 and butt joint sleeve 36, make the butt joint operation of this check valve more firm, through setting up fixed cassette 12, the use is in two sets of removal buckles 13 of fixed cassette 12 with the one end card of pipeline, rotate concatenation snap ring 42, buckle 43 in the pulling removal through concatenation snap ring 42, make remove the fixed pipeline of buckle 13 backward to remove, the pipeline butt joint operation of this check valve is accomplished to buckle 13 is removed in the revolution mechanic cooperation that utilizes fixed cassette 12, it is more convenient to make its butt joint installation, reduce its installation difficulty.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. Preferred embodiments are not exhaustive of all the details of the embodiments. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. The anti-reflux check valve convenient to adjust is characterized by comprising a sealing valve body (10), a lifting piston (21), a support clamping seat (7), a splicing clamping ring (42) and a sealing rotating shaft (8), wherein a rotary connecting pipe (11) is fixedly arranged on the outer surface of the front end of the sealing valve body (10), the sealing valve body (10) is in through connection with a communicating pipe (1) through the rotary connecting pipe (11), locking connectors (2) are fixedly arranged on the outer surfaces of the two ends of the communicating pipe (1), a butt joint sleeve (36) is movably sleeved on the upper portion of each locking connector (2), the locking connectors (2) and the butt joint sleeve (36) are fixedly butted through threaded bases (38), a plurality of groups of limiting circular grooves (37) are formed in the inner side of the upper portion of the butt joint sleeve (36), and a clamping tooth ferrule (34) is fixedly sleeved between each locking connector (2) and the butt joint sleeve (36), the latch ferrule (34) and the butt joint sleeve (36) are fixedly butted through a limiting guide post (35), a fixed chute (33) is formed in the outer surface of the upper portion of the locking joint (2), and butt joint flanges (9) are fixedly mounted on the outer surfaces of the two ends of the sealing valve body (10);
the lower part of the sealing valve body (10) is fixedly sleeved with a right-angle turning head (19), the sealing valve body (10) and the right-angle turning head (19) are fixedly butted through a butt flange (9), a fixed clamping seat (12) is fixedly arranged on the outer surface of one end of the right-angle turning head (19), a splicing clamping ring (42) is movably sleeved on the inner side of the lower part of the fixed clamping seat (12), a threaded top seat (44) is fixedly arranged on the outer surface of the upper end of the splicing clamping ring (42), two groups of movable inner buckles (43) are fixedly arranged on the inner side of the threaded top seat (44), two groups of movable buckles (13) are movably arranged on the upper part of the fixed clamping seat (12), a lifting piston (21) is movably arranged on the inner surface of the sealing valve body (10), the lifting piston (21) is movably connected with the sealing valve body (10) through a lifting adjusting rod (4), and a spring sleeve (23), the outer surface of the lifting adjusting rod (4) is fixedly sleeved with a fixed blocking piece (24) close to the upper part of the spring sleeve (23), the inner surface of the inner side of the lifting piston (21) is fixedly provided with a bearing (22), and the lifting piston (21) is movably connected with the lifting adjusting rod (4) through the bearing (22).
2. The conveniently-adjusted backflow-preventing check valve according to claim 1, characterized in that a sealing washer (20) is fixedly mounted on the outer surface of the lower end of the lifting piston (21), the lifting piston (21) and the sealing washer (20) are fixed through glue, a supporting clamping seat (7) is fixedly mounted on the upper portion of the butt flange (9), the butt flange (9) and the supporting clamping seat (7) are fixedly butted through a fixing connecting rod (3), a sealing rotating shaft (8) is sleeved on the outer surface of the upper end of the butt flange (9), sealing rings are arranged on the inner sides of two ends of the sealing rotating shaft (8), an operating hand wheel (6) is movably mounted on the upper portion of the supporting clamping seat (7), and the supporting clamping seat (7) and the operating hand wheel (6) are movably butted through a threaded clamping bolt (5).
3. The conveniently-adjusted backflow-preventing check valve as claimed in claim 1, wherein a sealing conical plug (17) is fixedly mounted on an outer surface of a lower end of the sealing rotating shaft (8), a connecting clamping mouth (15) is fixedly sleeved on a lower portion of the sealing conical plug (17), a fixing sleeve ring (16) is fixedly sleeved between the connecting clamping mouth (15) and the sealing conical plug (17), and a clamping top head (14) is fixedly mounted on a lower end of the connecting clamping mouth (15).
4. The conveniently-adjusted backflow prevention check valve according to claim 1, wherein a protection sleeve ring (18) is sleeved on the outer surface of the sealing valve body (10), the sealing valve body (10) and the protection sleeve ring (18) are fixedly butted through a clamping groove, a plurality of groups of cushion pads are arranged on the inner side of the protection sleeve ring (18), a dredging pipe is fixedly installed on the outer surface of the lower end of the right-angle rotary head (19), and sealing grooves are formed in the inner sides of two ends of the right-angle rotary head (19).
5. The conveniently-adjusted backflow-preventing check valve according to claim 1, wherein a connecting bolt (26) is fixedly mounted on the outer surface of the upper end of the lifting adjusting rod (4), guide columns (25) are fixedly mounted on the outer surfaces of two sides of the connecting bolt (26), a first sleeve (27) is movably sleeved on the inner surface of the lower portion of the rotary connecting pipe (11), a second sleeve (29) is movably sleeved on the inner surface of the upper portion of the rotary connecting pipe (11), and a limiting clamping bolt (28) is fixedly mounted on the outer surfaces of the first sleeve (27) and the second sleeve (29).
6. The non-return valve convenient to adjust is characterized in that sealing rings (32) are fixedly sleeved on one sides of the outer surfaces of the first sleeve (27) and the second sleeve (29) close to the limiting clamping bolts (28), two groups of rotating inner grooves (31) are formed in the inner side surface of the rotating connecting pipe (11), and the rotating connecting pipe (11) is fixedly butted with the second sleeve (29) through the rotating inner grooves (31) and the first sleeve (27).
7. The check valve convenient to adjust is characterized in that two sets of second collars (41) are fixedly sleeved on the inner surface of the upper portion of the support clamping seat (7), the support clamping seat (7) is fixedly butted and fixed with the fixed connecting rod (3) through the second collars (41), a butting rotating shaft (40) is fixedly installed on the outer surface of the bottom of the sealing rotating shaft (8), and the sealing rotating shaft (8) and the butting rotating shaft (40) are fixedly butted and fixed through a first collar (39).
8. The check valve convenient to adjust is characterized in that a butt joint clamping rod (45) is fixedly installed on the outer surface of the lower end of the movable buckle (13), the movable buckle (13) and the butt joint clamping rod (45) are in butt joint and fixed through a rotating pin (46), the butt joint clamping rod (45) and the splicing clamping ring (42) are in butt joint and fixed through a movable inner buckle (43), and the fixed clamping seat (12) and the threaded top seat (44) are fixed through threaded meshing.
9. The check valve convenient for adjustment according to claim 1, wherein the front inner surface of the fixed clamping seat (12) is provided with a lifting sliding groove, the locking joint (2) and the latch ferrule (34) are engaged and fixed through a fixed inclined groove (33), the front inner surface of the movable buckle (13) is provided with a clamping groove, the inner side of the movable buckle (13) is provided with a spring top ring, and the middle position of the outer surface of the rotary connecting pipe (11) is provided with an arc-shaped notch (30).
10. The operation method of the conveniently adjustable backflow prevention type check valve according to claim 1, wherein the check valve is specifically used and operated by the following steps:
the method comprises the following steps: mounting operation, namely, a splicing snap ring (42) of a fixed clamping seat (12) is butted and fixed with one end of a right-angle rotating head (19) by using a thread fixing structure, and the splicing snap ring (42) is clockwise rotated by clamping two groups of movable buckles (13) of the fixed clamping seat (12) at clamping grooves of butted pipelines, so that the splicing snap ring (42) pulls a butting clamping rod (45) of the movable buckle (13) to move inwards by moving an inner buckle (43), and the butting and fixing operation between the two groups of pipelines is completed;
step two: adjusting operation, namely rotating an operating hand wheel (6), driving a lifting adjusting rod (4) to perform shaft connecting rotation operation by using a threaded clamping bolt (5) of the operating hand wheel (6), and in the rotating process of the operating hand wheel (6), moving a fixed blocking piece (24) downwards, increasing the pressure between a spring sleeve (23) and a lifting piston (21), and adjusting the stress range of the lifting piston (21);
step three: and (3) rotating the first sleeve (27) and the second sleeve (29) through two groups of rotating inner grooves (31) of the rotating connecting pipe (11), and adjusting the connecting angle between the sealing valve body (10) and the communicating pipe (1) by utilizing the relative rotation between the rotating first sleeve (27) and the second sleeve (29).
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| CN201910182998.4A CN109764166B (en) | 2019-03-12 | 2019-03-12 | Conveniently-adjusted anti-backflow check valve and operation method thereof |
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| CN201910182998.4A CN109764166B (en) | 2019-03-12 | 2019-03-12 | Conveniently-adjusted anti-backflow check valve and operation method thereof |
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| CN109764166B true CN109764166B (en) | 2020-03-20 |
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| CN111503302B (en) * | 2020-04-23 | 2021-09-21 | 江苏海纬集团有限公司 | High-sealing corrosion-resistant valve component and manufacturing method thereof |
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| CN2703933Y (en) * | 2004-04-15 | 2005-06-08 | 台州市富耀利清洗机有限公司 | Automatic unloading combined valve of washing machine |
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| CN109764166A (en) | 2019-05-17 |
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Effective date of registration: 20200120 Address after: No. 398, MINGYE Road, Sheshan Town, Songjiang District, Shanghai 200000 Applicant after: Shanghai Outelai Valve Machinery Co., Ltd. Address before: 443000 No. 17, Second Lane, Xiazhou, Fengjiawan Community, Xiaoxi Ta, Yiling District, Yichang City, Hubei Province Applicant before: Hubei Yaan Technology Development Co. Ltd. |
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