CN114483967B - Stop valve capable of conducting flow fine adjustment - Google Patents

Stop valve capable of conducting flow fine adjustment Download PDF

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Publication number
CN114483967B
CN114483967B CN202210075495.9A CN202210075495A CN114483967B CN 114483967 B CN114483967 B CN 114483967B CN 202210075495 A CN202210075495 A CN 202210075495A CN 114483967 B CN114483967 B CN 114483967B
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China
Prior art keywords
valve
rod
welded
shaped
hole
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CN202210075495.9A
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Chinese (zh)
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CN114483967A (en
Inventor
胡汗华
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Juhua Valve Co ltd
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Juhua Valve Co ltd
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Priority to CN202210075495.9A priority Critical patent/CN114483967B/en
Publication of CN114483967A publication Critical patent/CN114483967A/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/02—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with screw-spindle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/46—Attachment of sealing rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/52—Means for additional adjustment of the rate of flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0209—Check valves or pivoted valves
    • F16K27/0218—Butterfly valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/04—Construction of housing; Use of materials therefor of sliding valves
    • F16K27/044—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members
    • F16K27/045—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members with pivotal obturating members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/029—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with two or more gates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/04—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members
    • F16K3/06—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages
    • F16K3/08—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages with circular plates rotatable around their centres
    • F16K3/085—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages with circular plates rotatable around their centres the axis of supply passage and the axis of discharge passage being coaxial and parallel to the axis of rotation of the plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details
    • F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/60—Handles

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)
  • Sliding Valves (AREA)

Abstract

The invention discloses a stop valve capable of conducting flow fine adjustment, which comprises a valve body, wherein a valve hole is formed in the valve body, a valve cover is fixed at the top of the valve body, a valve rod is slidably embedded in the inner surface wall of the valve hole, the top end of the valve rod extends to the top of the valve cover, a hand wheel is sleeved at the top end of the valve rod, a valve clack is sleeved at the bottom of the valve rod, a sealing seat cushion is fixed at the top of the center of the valve hole, and the top of the sealing seat cushion is tightly attached to the bottom edge of the valve clack. According to the invention, the L-shaped water hole is completely leaked, so that the flow rate of liquid is increased, the circular plate is rotated by flowing the liquid in the L-shaped water hole, so that the circular plate can better flow the liquid, the circular plate can partially block the water, so that the flow rate of the liquid can be better finely adjusted, the usability of the stop valve can be better increased, and fine adjustment throttling can be better realized.

Description

Stop valve capable of conducting flow fine adjustment
Technical Field
The invention belongs to the technical field of stop valves, and particularly relates to a stop valve capable of conducting flow fine adjustment.
Background
The stop valve is also called a stop valve, and belongs to a forced sealing type valve, so that when the valve is closed, pressure is applied to a valve clack to force a sealing surface not to leak, most valves are adopted in the market as stop valves, and the conventional stop valves realize liquid circulation by controlling the opening and closing of the valve clack.
However, in the prior art, when the stop valve is used, the flow of the stop valve is controlled only through a single valve clack, and when fine adjustment control is performed on some accurate flows, the use performance of the stop valve can not be greatly reduced, so that the use performance of the stop valve can not be better controlled in some small ranges, meanwhile, the throttling effect of the existing stop valve is not obvious when the stop valve is used, the stability is poor, the throttling can not be better performed, and resources are greatly wasted when the stop valve is used.
Disclosure of Invention
The invention aims at: in order to solve the problems that the stop valve cannot be finely adjusted and cannot be stably throttled, the like, the stop valve capable of finely adjusting the flow is provided.
The technical scheme adopted by the invention is as follows: the utility model provides a stop valve that can carry out flow fine setting, includes the valve body, the valve opening has been seted up to the inside of valve body, the top of valve body is fixed with the valve gap, the interior surface wall slip of valve opening has inlayed the valve rod, and the top of valve rod extends to the top of valve gap, the top cover of valve rod is equipped with the hand wheel, the bottom cover of valve rod is equipped with the valve clack, the center department top of valve opening is fixed with sealing cushion, sealing cushion's top with the bottom edge of valve clack closely adheres to, is convenient for block up the valve opening, the bottom center department of valve clack has seted up the notch, and the interior surface wall of notch is fixed with first magnet layer, the bottom of first magnet layer has adhered with the sealing layer, four round holes have all been blocked to L type pole along the circumferencial direction equidistance in the bottom of valve clack, square mouth has all been seted up to the interior surface wall of both sides near center department upper and lower side of round hole, the inner surface walls of the upper side and the lower side of the square opening are provided with a plurality of sliding grooves along the horizontal direction, the inner surface walls of the sliding grooves are provided with sliding blocks in a sliding embedded mode, the sliding blocks slide left and right in the inner surface walls of the sliding grooves, the sliding blocks are provided with a plurality of groups, a fixed plate is welded between two sliding blocks of each group, a compression spring is welded at the center of one side outer surface of the fixed plate, one end of the compression spring is welded with the inner surface wall of the square opening, a first rubber tube is sleeved on the outer surface of the compression spring, two ends of the first rubber tube are adhered to the outer surface of the fixed plate and the inner surface wall of the square opening respectively, the compression spring is protected through the first rubber tube, a clamping block is welded at the center of the other side outer surface of the fixed plate, two clamping holes are formed in the outer surfaces of two sides of the L-shaped rod, close to the top edge, in the vertical direction, the inner surface wall of each clamping hole is in clamping connection with the inner surface wall of each clamping block, so that the L-shaped rod is fixed, four L-shaped rods are arranged in total, one ends of the four L-shaped rods are welded with cylinders, a second magnet layer is fixed at the top of each cylinder, and the second magnet layer and the first magnet layer are mutually attracted and sealed through the sealing layers.
The novel water pump is characterized in that a plurality of L-shaped water holes are formed in the cylinder at equal intervals, two baffles are welded on the upper surface wall of the L-shaped water hole close to one end edge, a fixing rod is welded between the two baffles, a T-shaped rod penetrates through the outer surface of the fixing rod in a sliding mode, and the T-shaped rod rotates on the fixing rod.
Wherein, the both ends of dead lever all overlap and are equipped with first torsion spring, and the surface welding of first torsion spring one end and baffle, the other end and the surface welding of T type pole, through first torsion spring and then make the T type pole resets after rotating, the bottom welding of T type pole has the plectane, the diameter of plectane is less than the internal diameter of L type apopore, through T type pole rotates and then makes the plectane rotates, first torsion spring's surface cover is equipped with the second rubber tube, through the second rubber tube is convenient for right first torsion spring protects.
The top of the valve body is close to two side edges and is welded with a fixed block, the fixed block is provided with a threaded hole along the vertical direction, the inner surface wall of the threaded hole is connected with a screw rod in a threaded mode, the top end of the screw rod extends to the outer portion of the fixed block, and the screw rod can move up and down through the rotation of the inner surface wall of the threaded hole.
The inside of valve body is located the bottom of fixed block is seted up along vertical direction and is accomodate the hole, accomodate the top of hole with the bottom intercommunication of screw hole, the equal welding of the both sides surface of lead screw has the long piece of U type.
The two inner surface walls of the U-shaped long block are welded with two rotating rods in the vertical direction, the outer surfaces of the rotating rods penetrate through straight rods in a sliding mode, and the straight rods rotate around the rotating rods.
The two ends of the rotating rod are sleeved with second torsion springs, one ends of the second torsion springs are welded with the inner surface of the U-shaped long block, the other ends of the second torsion springs are welded with the outer surface of the rotating rod, and the rotating rod is reset after rotating through the second torsion springs.
The outer surface of one side of the straight rod is adhered with a water blocking layer, the outer side of the water blocking layer is adhered with the inner surface wall of the U-shaped long block, and the rotation of the straight rod can further drive the water blocking layer to shrink or expand.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:
1. According to the invention, the valve rod moves up and down, so that the valve clack is driven to move up and down, the cylinder is driven to move up and down, liquid enters the L-shaped water hole through the valve hole, the liquid flows through the L-shaped water hole, when the valve rod is lifted, the L-shaped water hole leaks out, so that the flow of the liquid can be better controlled, the L-shaped water hole is completely leaked out, the flow of the liquid is further increased, the circular plate is rotated by flowing the liquid in the L-shaped water hole, the liquid can be better flowed, the water is partially blocked by the circular plate, the flow of the liquid can be better finely adjusted, the usability of the stop valve can be better increased, and the throttling can be better realized.
2. According to the invention, the screw rod is rotated, so that the inside of the straight rod storage hole extends to the inside of the valve hole, the straight rod is rotated by the elasticity of the second torsion spring, the water blocking layer can be better unfolded, the flow of liquid in the valve hole can be better blocked by the water blocking layer, the flow rate of the liquid flowing out and entering the valve hole can be better reduced, the fine adjustment control of the stop valve can be better performed, the throttling of the liquid is conveniently realized, and the use effect of the stop valve can be better increased.
Drawings
FIG. 1 is a front cross-sectional view of the present invention;
FIG. 2 is a front cross-sectional view of a cylinder of the present invention;
FIG. 3 is a front view of a valve flap and cylindrical portion of the present invention;
FIG. 4 is a partially expanded view of the lead screw of the present invention;
FIG. 5 is a partially closed front view of a screw in accordance with the present invention;
FIG. 6 is an enlarged view of a portion of section A of FIG. 1 in accordance with the present invention;
FIG. 7 is an enlarged view in partial section B of FIG. 2 in accordance with the present invention;
Fig. 8 is an enlarged view of part C of fig. 3 in section in accordance with the present invention.
The marks in the figure: 1. sealing the seat cushion; 2. a valve hole; 3. a valve flap; 4. a valve body; 5. a valve cover; 6. a valve stem; 7. a hand wheel; 8. a cylinder; 9. l-shaped water holes; 10. a circular plate; 11. a first magnet layer; 12. a sealing layer; 13. a second magnet layer; 14. a screw rod; 15. u-shaped long blocks; 16. a straight rod; 17. a rotating lever; 18. a water blocking layer; 19. a second torsion spring; 20. a second rubber tube; 21. a fixed rod; 22. a baffle; 23. a first torsion spring; 24. a T-shaped rod; 25. a round hole; 26. a clamping hole; 27. a chute; 28. a square mouth; 29. a first rubber tube; 30. a compression spring; 31. a fixing plate; 32. a slide block; 33. a clamping block; 34. an L-shaped rod; 35. a fixed block; 36. a threaded hole; 37. and a storage hole.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Embodiment one, referring to fig. 1,2, 3 and 7: a stop valve capable of flow fine adjustment comprises a valve body 4, wherein a valve hole 2 is formed in the valve body 4, a valve cover 5 is fixed at the top of the valve body 4, a valve rod 6 is slidably embedded in the inner surface wall of the valve hole 2, the top end of the valve rod 6 extends to the top of the valve cover 5, a hand wheel 7 is sleeved at the top end of the valve rod 6, a valve clack 3 is sleeved at the bottom of the valve rod 6, a sealing seat cushion 1 is fixed at the top of the center of the valve hole 2, the top of the sealing seat cushion 1 is tightly attached to the bottom edge of the valve clack 3 so as to be convenient for blocking the valve hole 2, a notch is formed in the bottom center of the valve clack 3, a first magnet layer 11 is fixed on the inner surface wall of the notch, a sealing layer 12 is attached to the bottom of the first magnet layer 11, a second magnet layer 13 is fixed at the top of the cylinder 8, the second magnet layer 13 and the first magnet layer 11 are attracted mutually, and sealed through the sealing layer 12, a plurality of L-shaped water holes 9 are formed in the cylinder 8 at equal intervals, two baffle plates 22 are welded on the upper surface wall of the L-shaped water hole 9 near the edge of one end, a fixed rod 21 is welded between the two baffle plates 22, a T-shaped rod 24 is penetrated through the outer surface of the fixed rod 21 in a sliding way, a first torsion spring 23 is sleeved at two ends of the fixed rod 21, one end of the first torsion spring 23 is welded with the outer surface of the baffle plate 22, the other end of the first torsion spring 23 is welded with the outer surface of the T-shaped rod 24, the T-shaped rod 24 is reset after being rotated through the first torsion spring 23, a circular plate 10 is welded at the bottom end of the T-shaped rod 24, the diameter of the circular plate 10 is smaller than the inner diameter of the L-shaped water hole 9, the circular plate 10 is rotated through the rotation of the T-shaped rod 24, a second rubber tube 20 is sleeved on the outer surface of the first torsion spring 23, the first torsion spring 23 is convenient to protect the first torsion spring 23 through the second rubber tube 20, through rotating hand wheel 7 to make valve rod 6 rise, when valve rod 6 risees, valve clack 3 drives cylinder 8 and rises, spill half with L type apopore 9, thereby make the inside liquid of valve opening 2 pass through L type apopore 9 and send out, because only spill half, thereby make rivers reduce, rotate hand wheel 7 again, thereby make L type apopore 9 totally spill, thereby make rivers increase that can be better, flow in the inside of L type apopore 9 through the liquid, thereby make T type pole 24 drive plectane 10 rotate, block the liquid through plectane 10, make it can be better reduce the volume of rivers, when plectane 10 rotates, thereby make first distortion spring 23 take place elastic deformation, thereby make it carry the back to carry to liquid, make plectane 10 reset better, thereby fine setting control is carried out to the stop valve to the realization that can be better, be convenient for throttle.
Embodiment two, refer to fig. 8: four round holes 25 are formed in the bottom of the valve clack 3 at equal intervals along the circumferential direction, L-shaped rods 34 are clamped on inner surface walls of the four round holes 25, square openings 28 are formed in the upper and lower parts of inner surface walls of two sides of the round holes 25 close to the center, sliding grooves 27 are formed in the upper and lower inner surface walls of the square openings 28 along the horizontal direction, a plurality of sliding grooves 27 are formed in the inner surface walls of the sliding grooves 27, sliding blocks 32 are embedded in the sliding grooves 32 in a sliding manner, the sliding blocks 32 slide left and right on the inner surface walls of the sliding grooves 27, the sliding blocks 32 are divided into a plurality of groups, a fixed plate 31 is welded between two sliding blocks 32 of each group, a compression spring 30 is welded in the center of one side outer surface of the fixed plate 31, one end of the compression spring 30 is welded with the inner surface wall of the square opening 28, a first rubber tube 29 is sleeved on the outer surface of the compression spring 30, two ends of the first rubber tube 29 are respectively adhered with the outer surface of the fixed plate 31 and the inner surface wall of the square opening 28, the first rubber tube 29 is used for protecting the compression spring 30, the center of the outer surface of the other side of the fixed plate 31 is welded with the clamping blocks 33, two clamping holes 26 are respectively formed on the outer surfaces of the two sides of the L-shaped rod 34, which are close to the top edge, along the vertical direction, the inner surface wall of the clamping holes 26 is clamped and connected with the inner surface wall of the clamping blocks 33 so as to fix the L-shaped rod 34, when the L-shaped water hole 9 in the cylinder 8 is blocked in long-term use, the cylinder 8 is pulled, the clamping holes 26 extrude the clamping blocks 33, the clamping blocks 33 extrude the fixed plate 31, so that the fixed plate 31 can extrude the compression spring 30 better, the compression spring 30 can be contracted in the square opening 28 better, the clamping holes 26 are separated from the clamping blocks 33, the L-shaped rod 34 can be taken out from the round hole 25 better, make it can be better dismantle cylinder 8, be convenient for dredge the inside L type apopore 9 of cylinder 8, be convenient for use it.
Embodiment three, referring to fig. 4, 5 and 6: the top of the valve body 4 is close to the edges of two sides and is welded with a fixed block 35, the fixed block 35 is provided with a threaded hole 36 along the vertical direction, the inner surface wall of the threaded hole 36 is in threaded connection with a screw rod 14, the top end of the screw rod 14 extends to the outside of the fixed block 35, the screw rod 14 can move up and down through the rotation of the inner surface wall of the threaded hole 36 of the screw rod 14, the inside of the valve body 4 is provided with a containing hole 37 along the vertical direction at the bottom of the fixed block 35, the top of the containing hole 37 is communicated with the bottom of the threaded hole 36, the outer surfaces of two sides of the screw rod 14 are welded with U-shaped long blocks 15, two rotating rods 17 are welded on the inner surface walls of the two sides of the U-shaped long blocks 15 along the vertical direction, the outer surfaces of the rotating rods 17 are penetrated with a straight rod 16 in a sliding way, the straight rod 16 rotates around the rotating rods 17, two ends of the rotating rods 17 are sleeved with second torsion springs 19, one ends of the second torsion springs 19 are welded with the inner surface walls of the U-shaped long blocks 15, the other end is welded with the outer surface of the rotating rod 17, the rotating rod 17 is reset after rotating through a second torsion spring 19, a water blocking layer 18 is adhered to the outer surface of one side of the straight rod 16, the outer side of the water blocking layer 18 is adhered to the inner surface wall of the U-shaped long block 15, the rotation of the straight rod 16 drives the water blocking layer 18 to shrink or expand, the screw rod 14 is rotated to enable the screw rod 14 to move downwards in the threaded hole 36, the U-shaped long block 15 is driven to extend from the inside of the containing hole 37 to the inside of the valve hole 2, the straight rod 16 is expanded by the elastic force of the second torsion spring 19, the water blocking layer 18 is driven to expand, liquid flowing in the valve hole 2 is blocked, the flow of the liquid can be better controlled, and secondary flow fine adjustment can be better performed, make it can be better use the stop valve, be convenient for increase its result of use, after using, through rotating lead screw 14 to can be better contact straight-bar 16 with the bottom of accomodating hole 37, take place elastic deformation through second torsion spring 19, thereby can be better reset straight-bar 16, make it shrink manger plate layer 18 in the inside of U type long piece 15, thereby collect the inside at accomodating hole 37.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims (8)

1. The utility model provides a can carry out stop valve of flow fine setting, includes valve body (4), its characterized in that: valve opening (2) have been seted up to the inside of valve body (4), valve opening (5) have been fixed with at the top of valve body (4), valve opening (2) interior table wall slip inlays and is equipped with valve rod (6), and the top of valve rod (6) extends to valve opening (5) top, the top cover of valve rod (6) is equipped with hand wheel (7), valve opening (6) bottom cover is equipped with valve clack (3), valve opening (2) center department top is fixed with sealing cushion (1), sealing cushion (1) top with valve clack (3) bottom edge is closely attached, is convenient for block up valve opening (2), valve opening (3) bottom center department has seted up the notch, and the interior table wall of notch is fixed with first magnet layer (11), sealing layer (12) have been attached to the bottom of first magnet layer (11), four round hole (25) are seted up along the circumference direction equidistance to the bottom of valve opening (3), four interior table wall of round hole (25) all block L type pole (34), the interior table wall of round hole (25) is close to the interior table wall of both sides (27) are seted up in the equal side of opening (27) in the equal side of a horizontal chute (28), the inner surface walls of the sliding grooves (27) are respectively and slidably embedded with sliding blocks (32), the sliding blocks (32) are respectively and laterally sliding on the inner surface walls of the sliding grooves (27), the sliding blocks (32) are respectively and laterally sliding, a plurality of sliding blocks (31) are welded between each two sliding blocks (32), a compression spring (30) is welded at the center of one side outer surface of the fixed plate (31), one end of the compression spring (30) is welded with the inner surface wall of the square opening (28), a first rubber tube (29) is sleeved on the outer surface of the compression spring (30), two ends of the first rubber tube (29) are respectively adhered to the outer surface of the fixed plate (31) and the inner surface wall of the square opening (28), the first rubber tube (29) is used for protecting the compression spring (30), two clamping blocks (33) are welded at the center of the outer surface of the other side of the fixed plate (31), two clamping holes (26) are formed in the edge of the outer surface of the two sides of the L-shaped rod (34) close to the top, two clamping holes (26) are formed in the vertical direction, two clamping blocks (34) are welded with the inner surface walls of the L-shaped rod (34), one end of the L-shaped rod (34) is welded with the inner surface of the four cylindrical rod (8), the inner surface (34) is welded with the inner surface of the four cylindrical rod (8), the second magnet layer (13) attracts the first magnet layer (11) to each other, and is sealed by the sealing layer (12).
2. A shutoff valve with flow fine adjustment as set forth in claim 1, wherein: a plurality of L-shaped water holes (9) are formed in the cylinder (8) at equal intervals, two baffles (22) are welded on the upper surface wall of the L-shaped water holes (9) close to one end edge, a fixing rod (21) is welded between the two baffles (22), a T-shaped rod (24) penetrates through the outer surface of the fixing rod (21) in a sliding mode, and the T-shaped rod (24) rotates on the fixing rod (21).
3. A shutoff valve with flow fine adjustment as set forth in claim 2, wherein: the utility model discloses a fixed knot is characterized by comprising a fixed rod (21), a baffle plate (22) and a second torsion spring (23), wherein both ends of the fixed rod (21) are all sleeved with the first torsion spring (23), one end of the first torsion spring (23) is welded with the outer surface of the baffle plate (22), the other end of the first torsion spring is welded with the outer surface of the T-shaped rod (24), the first torsion spring (23) is used for enabling the T-shaped rod (24) to reset after rotating, the bottom end of the T-shaped rod (24) is welded with a circular plate (10), the diameter of the circular plate (10) is smaller than the inner diameter of an L-shaped water hole (9), the circular plate (10) is enabled to rotate through the rotation of the T-shaped rod (24), and a second rubber tube (20) is sleeved on the outer surface of the first torsion spring (23) and is convenient for protecting the first torsion spring (23) through the second rubber tube (20).
4. A shutoff valve with flow fine adjustment as set forth in claim 1, wherein: the top of valve body (4) is close to both sides edge and all welds fixed block (35), screw hole (36) have been seted up along vertical direction to fixed block (35), the interior surface wall threaded connection of screw hole (36) has lead screw (14), and the top of lead screw (14) extends to the outside of fixed block (35), through lead screw (14) be in the interior surface wall rotation of screw hole (36) and then make lead screw (14) can reciprocate.
5. A shutoff valve as claimed in claim 1 or 4, wherein the flow is fine-tuned by: the inside of valve body (4) is located the bottom of fixed block (35) is seted up along vertical direction and is accomodate hole (37), accomodate the top of hole (37) with the bottom intercommunication of screw hole (36), the both sides surface of lead screw (14) all welds U type long piece (15).
6. A shutoff valve with flow fine adjustment as set forth in claim 5, wherein: two rotating rods (17) are welded on the inner surface walls of the two sides of the U-shaped long block (15) along the vertical direction, a straight rod (16) penetrates through the outer surface of the rotating rod (17) in a sliding mode, and the straight rod (16) rotates around the rotating rod (17).
7. A shutoff valve with flow fine adjustment as set forth in claim 6, wherein: the two ends of the rotating rod (17) are sleeved with second torsion springs (19), one ends of the second torsion springs (19) are welded with the inner surface wall of the U-shaped long block (15), the other ends of the second torsion springs are welded with the outer surface of the rotating rod (17), and the rotating rod (17) is reset after rotating through the second torsion springs (19).
8. A shutoff valve with flow fine adjustment as set forth in claim 6, wherein: the outer surface of one side of the straight rod (16) is adhered with a water blocking layer (18), the outer side of the water blocking layer (18) is adhered with the inner surface wall of the U-shaped long block (15), and the rotation of the straight rod (16) can drive the water blocking layer (18) to shrink or expand.
CN202210075495.9A 2022-01-22 2022-01-22 Stop valve capable of conducting flow fine adjustment Active CN114483967B (en)

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KR101091584B1 (en) * 2011-06-16 2011-12-13 김충호 Valve trim apparatus for prohibiting scale attatchment and manufacturing method thereof
CN204459216U (en) * 2015-02-12 2015-07-08 宣达实业集团有限公司 High-pressure self-balance self-sealing piston formula regulates throttling stop valve
CN107542960A (en) * 2017-10-11 2018-01-05 天津百利展发集团有限公司 One kind fine setting nodal pattern throttling stop valve valve core structure
CN110925440A (en) * 2019-12-20 2020-03-27 和县科嘉阀门铸造有限公司 Stop valve capable of stably adjusting flow
CN210240598U (en) * 2019-07-09 2020-04-03 浙江恒标阀门有限公司 Fine adjustment type stop valve core
CN210531614U (en) * 2019-06-25 2020-05-15 浙江巨华阀门有限公司 Corrugated pipe stop valve special for steam
CN111637240A (en) * 2020-06-18 2020-09-08 台州颖发阀门有限公司 Flow accurate adjustment ceramic valve
CN214534520U (en) * 2021-03-11 2021-10-29 华能东莞燃机热电有限责任公司 TCA return water adjusting valve structure

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CN101220867B (en) * 2007-12-14 2010-10-13 曾祥炜 Shuttle type vibration damping break valve
CN103925381B (en) * 2014-04-29 2016-06-22 昆山维萨阀门有限公司 Bellows stop valve

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101091584B1 (en) * 2011-06-16 2011-12-13 김충호 Valve trim apparatus for prohibiting scale attatchment and manufacturing method thereof
CN204459216U (en) * 2015-02-12 2015-07-08 宣达实业集团有限公司 High-pressure self-balance self-sealing piston formula regulates throttling stop valve
CN107542960A (en) * 2017-10-11 2018-01-05 天津百利展发集团有限公司 One kind fine setting nodal pattern throttling stop valve valve core structure
CN210531614U (en) * 2019-06-25 2020-05-15 浙江巨华阀门有限公司 Corrugated pipe stop valve special for steam
CN210240598U (en) * 2019-07-09 2020-04-03 浙江恒标阀门有限公司 Fine adjustment type stop valve core
CN110925440A (en) * 2019-12-20 2020-03-27 和县科嘉阀门铸造有限公司 Stop valve capable of stably adjusting flow
CN111637240A (en) * 2020-06-18 2020-09-08 台州颖发阀门有限公司 Flow accurate adjustment ceramic valve
CN214534520U (en) * 2021-03-11 2021-10-29 华能东莞燃机热电有限责任公司 TCA return water adjusting valve structure

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