CN116518095A - Sealing stop valve with aligning and positioning functions - Google Patents

Sealing stop valve with aligning and positioning functions Download PDF

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Publication number
CN116518095A
CN116518095A CN202310726326.1A CN202310726326A CN116518095A CN 116518095 A CN116518095 A CN 116518095A CN 202310726326 A CN202310726326 A CN 202310726326A CN 116518095 A CN116518095 A CN 116518095A
Authority
CN
China
Prior art keywords
valve
sliding
groove
rod
sliding fit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310726326.1A
Other languages
Chinese (zh)
Inventor
王光腾
张瑞
孙玉建
林淑媛
侍俊懿
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Lianxin Valve Co ltd
Original Assignee
Jiangsu Lianxin Valve Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Lianxin Valve Co ltd filed Critical Jiangsu Lianxin Valve Co ltd
Priority to CN202310726326.1A priority Critical patent/CN116518095A/en
Publication of CN116518095A publication Critical patent/CN116518095A/en
Pending legal-status Critical Current

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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
    • F16K1/32—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
    • 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
    • F16K1/42—Valve seats
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0025—Electrical or magnetic 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
    • F16K41/00—Spindle sealings
    • F16K41/02—Spindle sealings with stuffing-box ; Sealing rings

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

Abstract

The invention discloses a sealed stop valve with aligning and positioning functions, which belongs to the technical field of stop valves and comprises a valve body, a valve seat matched with the valve body, and a valve assembly connected with the valve body, wherein a first limit clamping seat is fixed at one end of a sealing rod, which is far away from a valve port, and is connected to one end of a second limit clamping seat through an intermediate clamping plate; the first through groove is formed in the end face of the first limiting clamping seat, the second through groove is formed in the end face of the second limiting clamping seat, the first sliding fit assembly and the second sliding fit assembly are respectively arranged on two sides of the middle clamping plate, the first sliding fit assembly and the second sliding fit assembly are respectively in sliding fit with the first through groove and the second through groove, and the first sliding fit assembly and the second sliding fit assembly are mutually perpendicular. The stop valve can properly center and position the valve clack when the valve is closed, so as to ensure the tightness of the stop valve.

Description

Sealing stop valve with aligning and positioning functions
Technical Field
The invention belongs to the technical field of stop valves, and particularly relates to a sealed stop valve with aligning and positioning functions.
Background
The stop valve is also called a stop valve, and belongs to a forced sealing valve, and when the valve is closed, pressure must be applied to the valve clack so as to force the sealing surface not to leak. When the valve needs to be closed, larger resistance is generally needed to be overcome, the valve is affected by ageing and machining precision of the device, errors exist between the central axis of the threaded hole of the valve rod and the valve, the valve rod is easy to bend in the later stage, and the tightness of the valve can be seriously affected for a long time.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a sealing type stop valve with aligning and positioning, which can properly align and position a valve flap when closing the valve, so as to ensure the sealing performance of the stop valve.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the invention discloses a sealed stop valve with aligning positioning, which comprises a valve body, a valve seat matched with the valve body, and a valve assembly connected with the valve body, wherein the valve seat is provided with a valve port, the valve port can be closed through the valve assembly, the outer circumference of the valve seat is provided with a plurality of through holes communicated with the valve port, the inner side of the valve seat is axially matched with a lock sleeve, the lock sleeve is coaxially fixed with a sealing rod, a valve clack is fixed at one end of the sealing rod facing the valve port, a first limit clamping seat is fixed at one end of the sealing rod far away from the valve port, the first limit clamping seat is connected to one end of a second limit clamping seat through an intermediate clamping plate, the other end of the second limit clamping seat is coaxially connected to one end of a transmission rod, the middle part of the transmission rod is in threaded connection with the valve body, and the other end of the transmission rod extends out of the valve body; the end face of the first limiting clamping seat is provided with a first through groove, the end face of the second limiting clamping seat is provided with a second through groove, two sides of the middle clamping plate are respectively provided with a first sliding fit assembly and a second sliding fit assembly, the first sliding fit assembly and the second sliding fit assembly are respectively in sliding fit with the first through groove and the second through groove, and the first sliding fit assembly and the second sliding fit assembly are mutually perpendicular.
Further, first spout and second spout have been seted up respectively to the both sides face of intermediate splint, first spout and second spout correspond with first logical groove and second logical groove respectively, the structure of first slip fit assembly and second slip fit assembly is the same but the direction of arranging is perpendicular, first slip fit assembly includes center dog, first spring, second spring, first slider, second slider, center dog is fixed at the center of first spout, the both sides of center dog are connected to first slider and second slider through first spring and second spring respectively, first slider and second slider slip set up in the first spout.
Further, the first sliding groove and the first through groove are T-shaped grooves, and T-shaped protrusions corresponding to the T-shaped grooves are integrally arranged at two ends of the first sliding block and the second sliding block.
Further, the centers of the first sliding block and the second sliding block are provided with spherical caulking grooves, the inner sides of the spherical caulking grooves are in rolling fit with balls, and the outer surfaces of the balls protrude out of the side surfaces of the first sliding block or the second sliding block.
Further, a step is formed in the circumferential surface of the first limiting clamping seat, a threaded through hole is formed in the step, a supporting nail is matched in the threaded hole, and the inner end of the supporting nail extends towards one side where the first through groove is located and then contacts with the ball.
Further, evenly be fixed with a plurality of L type branches on the outer circumference of intermediate splint, the outer pot head of L type branch is equipped with the sleeve, telescopic outer end is fixed with the arc, the lateral wall of arc and the inner wall of valve body are at circumference sliding fit, still be connected with elasticity recovery unit between arc and the L type branch, still be provided with pressure sensor between elasticity recovery unit and the arc.
Further, the outside of transfer line is connected with the extension pipe, the inboard of extension pipe forms the passageway that is used for the transfer line to pass through, be provided with solid fixed ring and push ring in the passageway, be provided with the filler between solid fixed ring and the push ring, the outside threaded connection of extension pipe has the valve gap, the inner of valve gap with push ring contact.
Further, an external thread is arranged on the outer side of the lock sleeve, and an internal thread matched with the external thread is arranged on the inner side of the valve seat.
Further, a sliding rod is arranged in the through hole in a sliding manner, a wedge-shaped surface which is in contact with the valve clack is formed at the inner end of the sliding rod, a groove is formed in the middle of the outer side surface of the sliding rod, sealing can be formed between the outer side of the inner end of the sliding rod and the through hole, and a fourth spring is connected between the sliding rod and the inner wall of the valve body.
The invention has the beneficial effects that:
the invention has the sealing stop valve of aligning location, through segmenting the primitive valve rod, cut apart into sealing rod and drive rod that interconnect, connect through the intermediate clamp plate between drive rod and the sealing rod, when the moment of force of bending of outside acts on the drive rod, the drive rod rotates, the moment of force is transmitted to the intermediate clamp plate through the second spacing cassette, the intermediate clamp plate is transmitted to the sealing rod through the first spacing cassette again, thus can drive the valve clack displacement to seal the valve port. The problems of top bending and the like of the valve rod with a long straight section caused by overlarge pressure are avoided while the threaded transmission is not affected.
According to the stop valve disclosed by the invention, as the first sliding fit assembly and the second sliding fit assembly are respectively in sliding fit with the first through groove and the second through groove, the first sliding fit assembly and the second sliding fit assembly are mutually vertical, no matter when the transmission rod and the sealing rod are axially staggered due to ageing or abrasion of the device, the first sliding fit assembly can move for a section of displacement relative to the first limiting clamping seat, the second sliding fit assembly can move for a section of displacement relative to the second limiting clamping seat, and the displacement of the first sliding fit assembly and the second sliding fit assembly are vertical, even if the axial displacement of the rod is radial, the two sliding fit assemblies on the middle clamping plate can respectively slide in the first through groove and the second through groove to compensate the radial displacement of the two axial directions, so that transmission impact caused by radial errors is avoided, damage to threaded holes and other parts caused by transmission bending moment can be avoided, and the problem of gap enlargement caused by long-term use of the device can be avoided.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objects and other advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.
Drawings
In order to make the objects, technical solutions and advantageous effects of the present invention more clear, the present invention provides the following drawings for description:
FIG. 1 is a schematic diagram of a shut-off valve according to the present invention;
FIG. 2 is a schematic diagram of the connection between the limiting holder and the middle clamping plate according to the present invention;
FIG. 3 is a schematic structural view of the intermediate splint;
FIG. 4 is an enlarged view of FIG. 3 at A;
FIG. 5 is a schematic view of a first slip fit assembly;
FIG. 6 is a schematic illustration of the cooperation of the slide bar with the valve seat.
The figures are marked as follows: the valve body 1, the valve seat 2, the valve assembly 3, the valve port 4, the through hole 5, the lock sleeve 6, the sealing rod 7, the valve clack 8, the first limit clamping seat 9, the middle clamping plate 10, the second limit clamping seat 11, the transmission rod 12, the first through groove 13, the second through groove 14, the first sliding fit assembly 15, the second sliding fit assembly 16, the first through groove 17, the second through groove 18, the center stop 19, the first spring 20, the second spring 21, the first sliding block 22, the second sliding block 23, the spherical caulking groove 24, the ball 25, the step 26, the supporting nail 27, the L-shaped supporting rod 28, the sleeve 29, the arc plate 30, the elastic restoring device 31, the pressure sensor 32, the extension tube 33, the fixed ring 34, the push ring 35, the packing 36, the valve cover 37, the sliding rod 38, the wedge surface 39, the groove 40 and the fourth spring 41.
Detailed Description
As shown in fig. 1 to 6, the sealed stop valve with aligning and positioning functions comprises a valve body 1, a valve seat 2 matched with the valve body 1 and a valve component 3 connected with the valve body 1, wherein a water inlet is formed in the side face of the valve body 1, the other end of the valve body 1 is provided with the valve seat 2, a water outlet is formed in the valve seat 2, and the valve component 3 is coaxially arranged at the other end of the valve body 1 with the water outlet. The valve seat 2 is provided with a valve port 4, the valve port 4 can be closed through a valve assembly 3, a transmission rod 12 is coaxial with the valve port 4, the outer circumference of the valve seat 2 is provided with a plurality of through holes 5 communicated with the valve port 4, and when the valve port 4 is opened, water at a water inlet can enter the valve seat 2 through the through holes 5 and then is discharged through a water outlet on the valve seat 2.
In the invention, the inner side of the valve seat 2 is provided with the lock sleeve 6 in an axial matching way, the lock sleeve 6 is coaxially fixed with the sealing rod 7, and when the sealing rod 7 rotates, the lock sleeve 6 can move relative to the valve seat 2 in the axial direction. The sealing rod 7 is fixed with a valve clack 8 towards one end of the valve port 4, the valve clack 8 is semicircular, and the arc surface of the valve clack 8 can be matched with the circular valve port 4 and used for blocking. The material can be rubber material to increase its sealing effect. The sealing rod 7 is kept away from valve port 4 one end and is fixed with first spacing cassette 9, and first spacing cassette 9 is the ladder column, and wherein, first spacing cassette 9 is connected to the one end of second spacing cassette 11 through intermediate splint 10, and the other end coaxial coupling of second spacing cassette 11 is to the one end of transfer line 12, and the structure of first spacing cassette 9 and the spacing cassette 11 of second is identical, and the unique difference lies in the logical groove on it for the direction of arranging of intermediate splint 10.
Specifically, the middle part of the transmission rod 12 is in threaded connection with the valve body 1, when torque is applied to the transmission rod 12 to enable the transmission rod 12 to rotate, the transmission rod 12 can axially move, then the sealing rod 7 is driven to rotate and axially displace through the clamping seat, the middle clamping plate 10 and the like, and the valve is opened or closed through the axial displacement of the valve clack 8. Further, the other end of the transmission rod 12 extends out of the valve body 1 at the end far away from the second limiting clamping seat 11; the extending part can be connected with a handle or a motor and the like, so that the control can be conveniently performed. The first through groove 13 has been seted up to the terminal surface of first spacing cassette 9, the second through groove 14 has been seted up to the terminal surface of the spacing cassette of second 11, first through groove 13 and second through groove 14 all are located towards the intermediate clamp plate 10 place one side, intermediate clamp plate 10 centre gripping is between first spacing cassette 9 and the spacing cassette of second 11 promptly, the both sides of intermediate clamp plate 10 correspond respectively and are provided with first slip fit subassembly 15 and second slip fit subassembly 16, first slip fit subassembly 15 and second slip fit subassembly 16 respectively with first through groove 13 and second through groove 14 slip fit, first slip fit subassembly 15 and second slip fit subassembly 16 mutually perpendicular. By adopting the arrangement, the two sliding fit assemblies on the middle clamping plate 10 can respectively slide in the first through groove 13 and the second through groove 14 to compensate the radial displacement of the two axial directions, so that transmission impact caused by radial errors is avoided, damage to the threaded holes and other parts caused by transmission bending moment can be avoided, and the problem of gap increase caused by long-term use of the device can be avoided.
In this embodiment, the two side surfaces of the middle clamping plate 10 are respectively provided with a first sliding groove and a second sliding groove, which respectively correspond to the first through groove 13 and the second through groove 14, and in certain circumstances, the two sides of the first sliding fit assembly 15 are respectively slidably disposed in the first sliding groove and the first through groove 13, and the two sides of the second sliding fit assembly 16 are respectively slidably disposed in the second sliding groove and the second through groove 14. The first slip-fit assembly 15 and the second slip-fit assembly 16 are identical in construction but arranged in a perpendicular orientation. Taking the first sliding fit assembly 15 as an example, the first sliding fit assembly 15 includes a center block 19, a first spring 20, a second spring 21, a first slider 22, and a second slider 23, the center block 19 is fixed at the center of the first sliding groove, two sides of the center block 19 are connected to the first slider 22 and the second slider 23 through the first spring 20 and the second spring 21, respectively, and the first slider 22 and the second slider 23 are slidably disposed in the first sliding groove. Through setting up symmetrical first slider 22 and second slider 23, and adopt elasticity sliding connection's mode respectively, when not influencing the cooperation, can let the sliding fit mode of slider become flexible, reduce the card and die etc. probably, also can reduce the wearing and tearing between slider and each spout or the logical groove, and then improve the life-span of device.
In this embodiment, the first sliding groove and the first through groove 13 are both T-shaped grooves, and the two ends of the first sliding block 22 and the second sliding block 23 are integrally provided with T-shaped protrusions corresponding to the T-shaped grooves. Through setting up T type groove and T type arch, can play gliding cooperation effect, simultaneously, spacing cassette and intermediate plate 10's connection also can obtain spacingly in the axial.
In this embodiment, the centers of the first slider 22 and the second slider 23 are provided with spherical caulking grooves 24, the inner sides of the spherical caulking grooves 24 are in rolling fit with balls 25, and the outer surfaces of the balls 25 protrude out of the side surfaces of the first slider 22 or the second slider 23. The circumferential surface of the first limiting clamping seat 9 is provided with a step 26, the step 26 is provided with a threaded through hole 5, a supporting nail 27 is matched in the threaded hole, and the inner end of the supporting nail 27 extends towards one side where the first through groove 13 is located and then contacts with the ball 25. The invention can not only play the role of transmitting moment by arranging the ball 25, but also can be made of heat-treated material by contacting the supporting nails 27 with the ball 25, thereby reducing the abrasion to the through groove and prolonging the service life of the device. The support nails 27 can be replaced at any time by arranging the support nails in a detachable mode, so that the device is ensured to be in a more ideal working state at any time, and the product is convenient to maintain.
In this embodiment, a plurality of LL-shaped struts 28 are uniformly fixed on the outer circumference of the middle clamping plate 10, a sleeve 29 is sleeved at the outer end of the LL-shaped struts 28, an arc plate 30 is fixed at the outer end of the sleeve 29, the outer side wall of the arc plate 30 is in sliding fit with the inner wall of the valve body 1 in the circumferential direction, an elastic recovery device 31 is further connected between the arc plate 30 and the LL-shaped struts 28, and a pressure sensor 32 is further arranged between the elastic recovery device 31 and the arc plate 30. When the middle clamping plate 10 is eccentric relative to the transmission rod 12, the arc-shaped plate 30 can radially displace relative to the outer end of the LL-shaped supporting rod 28 when the middle clamping plate 10 rotates, so that the pressure sensor 32 is under the action of pressure, and when the pressure reaches a threshold value, the pressure sensor 32 alarms, and the device can be adjusted in time. The elastic restoring device 31 adopts a spring, and has an elastic connection effect.
In this embodiment, the outside of the transmission rod 12 is connected with an extension tube 33, a channel for the transmission rod 12 to pass through is formed on the inside of the extension tube 33, a fixed ring 34 and a pushing ring 35 are arranged in the channel, a packing 36 is arranged between the fixed ring 34 and the pushing ring 35, a valve cover 37 is connected with the outside of the extension tube 33 in a threaded manner, and the inner end of the valve cover 37 is in contact with the pushing ring 35. By providing the valve cover 37, the packing 36 can be compressed. The outer side of the lock sleeve 6 is provided with external threads, and the inner side of the valve seat 2 is provided with internal threads matched with the external threads. The lock sleeve 6 can be axially displaced relative to the valve seat 2 when rotated.
In this embodiment, a sliding rod 38 is slidably disposed in the through hole 5, a wedge-shaped surface 39 contacting with the valve clack 8 is formed at the inner end of the sliding rod 38, a groove 40 is formed in the middle of the outer surface of the sliding rod 38, a seal can be formed between the outer side of the inner end of the sliding rod 38 and the through hole 5, and a fourth spring 41 is connected between the sliding rod 38 and the inner wall of the valve body 1. In the normal water-passing condition, the external water can enter the valve seat 2 through the groove 40 and then be discharged through the valve port 4. When the valve needs to be closed, the valve clack 8 moves axially to the right, the valve clack 8 can act on the wedge surface 39 when the valve port 4 is closed, the sliding rod 38 can move radially, the groove 40 moves outwards, at the moment, the outer side of the inner end of the sliding rod 38 and the through hole 5 form a seal, and meanwhile, the through hole 5 is closed, so that the propping pressure of the valve clack 8 in the valve seat 2 is relieved, and the conditions of valve rod propping bending and the like are prevented.
Finally, it is noted that the above-mentioned preferred embodiments are only intended to illustrate rather than limit the invention, and that, although the invention has been described in detail by means of the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.

Claims (9)

1. The utility model provides a sealed stop valve with aligning location, includes the valve body, with valve body complex disk seat, with the valve subassembly that the valve body is connected, be provided with the valve port on the disk seat, the valve port can be closed its characterized in that through the valve subassembly: the valve seat is characterized in that a plurality of through holes communicated with the valve port are formed in the outer circumference of the valve seat, a lock sleeve is arranged on the inner side of the valve seat in an axial matching manner, a sealing rod is coaxially fixed on the lock sleeve, a valve clack is fixed on one end of the sealing rod, which faces the valve port, a first limit clamping seat is fixed on one end, which is far away from the valve port, of the sealing rod, the first limit clamping seat is connected to one end of a second limit clamping seat through an intermediate clamping plate, the other end of the second limit clamping seat is coaxially connected to one end of a transmission rod, the middle of the transmission rod is in threaded connection with the valve body, and the other end of the transmission rod extends out of the valve body; the end face of the first limiting clamping seat is provided with a first through groove, the end face of the second limiting clamping seat is provided with a second through groove, two sides of the middle clamping plate are respectively provided with a first sliding fit assembly and a second sliding fit assembly, the first sliding fit assembly and the second sliding fit assembly are respectively in sliding fit with the first through groove and the second through groove, and the first sliding fit assembly and the second sliding fit assembly are mutually perpendicular.
2. The sealed shut-off valve with aligning positioning of claim 1, wherein: the two side surfaces of the middle clamping plate are respectively provided with a first sliding groove and a second sliding groove, the first sliding groove and the second sliding groove correspond to the first through groove and the second through groove respectively, the first sliding fit assembly and the second sliding fit assembly are identical in structure and vertical in arrangement direction, the first sliding fit assembly comprises a center stop block, a first spring, a second spring, a first sliding block and a second sliding block, the center stop block is fixed at the center of the first sliding groove, two sides of the center stop block are connected to the first sliding block and the second sliding block through the first spring and the second spring respectively, and the first sliding block and the second sliding block are arranged in the first sliding groove in a sliding mode.
3. The sealed shut-off valve with aligning positioning of claim 2, wherein: the first sliding groove and the first through groove are T-shaped grooves, and T-shaped protrusions corresponding to the T-shaped grooves are integrally arranged at two ends of the first sliding block and the second sliding block.
4. A sealing shut-off valve with aligning positioning as in claim 3 wherein: the centers of the first sliding block and the second sliding block are respectively provided with a spherical caulking groove, the inner sides of the spherical caulking grooves are in rolling fit with balls, and the outer surfaces of the balls protrude out of the side surfaces of the first sliding block or the second sliding block.
5. The sealed shut-off valve with aligning positioning of claim 4, wherein: the first limiting clamping seat is characterized in that a step is formed in the circumferential surface of the first limiting clamping seat, a threaded through hole is formed in the step, a supporting nail is matched in the threaded hole, and the inner end of the supporting nail extends towards one side where the first through groove is located and then contacts with the ball.
6. The sealed shut-off valve with aligning positioning of claim 1, wherein: the middle clamping plate is characterized in that a plurality of L-shaped supporting rods are uniformly fixed on the outer circumference of the middle clamping plate, a sleeve is sleeved at the outer end of each L-shaped supporting rod, an arc-shaped plate is fixed at the outer end of each sleeve, the outer side wall of each arc-shaped plate is in circumferential sliding fit with the inner wall of the valve body, an elastic recovery device is further connected between each arc-shaped plate and each L-shaped supporting rod, and a pressure sensor is further arranged between each elastic recovery device and each arc-shaped plate.
7. The sealed shut-off valve with aligning positioning of claim 1, wherein: the outside of transfer line is connected with the extension pipe, the inboard of extension pipe forms the passageway that is used for the transfer line to pass through, be provided with solid fixed ring and push ring in the passageway, be provided with the filler between solid fixed ring and the push ring, the outside threaded connection of extension pipe has the valve gap, the inner of valve gap with push ring contact.
8. The sealed shut-off valve with aligning positioning of claim 1, wherein: the outside of lock sleeve is provided with the external screw thread, the inboard of disk seat be provided with external screw thread complex internal screw thread.
9. The sealed shut-off valve with aligning positioning of any one of claims 1-8, wherein: the valve is characterized in that a sliding rod is arranged in the through hole in a sliding manner, a wedge-shaped surface contacted with the valve clack is formed at the inner end of the sliding rod, a groove is formed in the middle of the outer side surface of the sliding rod, sealing can be formed between the outer side of the inner end of the sliding rod and the through hole, and a fourth spring is connected between the sliding rod and the inner wall of the valve body.
CN202310726326.1A 2023-06-19 2023-06-19 Sealing stop valve with aligning and positioning functions Pending CN116518095A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310726326.1A CN116518095A (en) 2023-06-19 2023-06-19 Sealing stop valve with aligning and positioning functions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310726326.1A CN116518095A (en) 2023-06-19 2023-06-19 Sealing stop valve with aligning and positioning functions

Publications (1)

Publication Number Publication Date
CN116518095A true CN116518095A (en) 2023-08-01

Family

ID=87396092

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310726326.1A Pending CN116518095A (en) 2023-06-19 2023-06-19 Sealing stop valve with aligning and positioning functions

Country Status (1)

Country Link
CN (1) CN116518095A (en)

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