CN113958724A - Low-torque large-caliber ball valve - Google Patents

Low-torque large-caliber ball valve Download PDF

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Publication number
CN113958724A
CN113958724A CN202111032511.8A CN202111032511A CN113958724A CN 113958724 A CN113958724 A CN 113958724A CN 202111032511 A CN202111032511 A CN 202111032511A CN 113958724 A CN113958724 A CN 113958724A
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CN
China
Prior art keywords
ball valve
lug
sleeve
tooth piece
shell
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.)
Withdrawn
Application number
CN202111032511.8A
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Chinese (zh)
Inventor
王淑英
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202111032511.8A priority Critical patent/CN113958724A/en
Publication of CN113958724A publication Critical patent/CN113958724A/en
Withdrawn legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/08—Details
    • F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
    • F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
    • F16K5/201—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the housing or parts of the housing mechanically pressing the seal against the plug
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0663—Packings
    • F16K5/0689—Packings between housing and plug

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Taps Or Cocks (AREA)

Abstract

The invention provides a low-torque large-caliber ball valve which comprises a shell, wherein a valve is rotated on the inner side of the shell, a transmission mechanism capable of automatically sealing is arranged on the inner side of the shell, the transmission mechanism comprises a sliding block, a connecting rod, a sleeve, a telescopic frame, a toothed sheet, a first convex block, a lever frame and a second convex block, the sliding block slides on two sides in the shell, the connecting rod swings at two ends of the sliding block, the sleeve and the telescopic frame sequentially slide on one side of the sliding block, the toothed sheet is distributed at two ends of the sleeve, the sliding block horizontally slides through the connecting rod by utilizing the pressure of valve extrusion, the sleeve is driven by the sliding block to horizontally slide, the sleeve is horizontally sleeved with the telescopic frame, the first convex block on one side of the toothed sheet is attached to a gear, and the first convex block drives the second convex block to angularly swing through the lever frame, so that the contact area between the toothed sheet and the gear can be further increased in the sliding process of the toothed sheet.

Description

Low-torque large-caliber ball valve
Technical Field
The invention relates to the technical field of valves, in particular to a low-torque large-caliber ball valve.
Background
The ball valve is a valve in which an opening and closing part (a ball body) is driven by a valve rod and rotates around the axis of the ball valve, the valve in the large-caliber ball valve is large, and when the valve rotates, a gap exists between the valve and the ball valve, so that the leakage condition is easy to occur;
in view of the above-mentioned technical problems of the ball valve, it is found through retrieval that there is a low-torque high-pressure ball valve with patent number CN202010360634.3, and the low-torque high-pressure ball valve can reduce the abrasion between the valve ball and the sealing member, improve the service life and the sealing effect of the sealing member, and improve the service life and the stability of the ball valve;
this ball valve forms the contact seal to the valve outside, and sealing member fastening effect is relatively poor, can't utilize valve own rotary pressure at the rotatory in-process of ball valve, and it is sealed to further fastening to the valve outside, leads to this ball valve to the sealed effect of valve outside relatively poor.
Disclosure of Invention
In order to solve the above technical problems, the present invention provides a low torque large diameter ball valve to solve the above problems described in the background art.
The invention relates to a low-torque large-caliber ball valve, which is realized by the following specific technical means:
the low-torque large-caliber ball valve comprises a shell, a valve is arranged on the inner side of the shell in a rotating mode, and a transmission mechanism capable of being automatically sealed is arranged on the inner side of the shell.
Furthermore, drive mechanism includes slider, connecting rod, sleeve, expansion bracket, tooth piece, first lug, lever frame and second lug.
Further, the slider slides in the inside both sides of shell, and the connecting rod swings in the both ends of slider, and sleeve and expansion bracket slide in one side of slider in proper order, and the tooth piece distributes in telescopic both ends, and first lug and second lug slide respectively and run through in the both sides of tooth piece, and the lever frame swings in the inboard of first lug and second lug.
Furthermore, one side of the sliding block, which is close to the valve, is in a semicircular arc shape, the connecting rod is provided with a matched hinge, the connecting rod is in a semicircular arc shape, the sleeve is hollow, one side of the expansion bracket is fixed in the shell, the tooth piece is in a triangular shape, the first protruding block extends to the outer side of the tooth piece by 1-2cm, and the lever frame is arranged in the tooth piece.
Furthermore, drive mechanism includes first pivot, gasbag, weight, gear, axle center, swinging arms and closing plate.
Furthermore, the first rotating shaft is hinged inside the sleeve, the air bag and the weight swing on the inner side of the first rotating shaft respectively, the gear rotates at two ends of the toothed sheet, the axis is installed at the central position of the gear, and the oscillating rod and the sealing plate swing on one end of the axis respectively.
Furthermore, the gasbag is the curved shape setting, and first pivot swing has first pivot in the inboard upper and lower both ends of gasbag, and the inboard swing of weight upper end has first pivot, and swinging arms and closing plate all are the semicircle arcuation setting.
Furthermore, sliding plates are arranged on two sides of the sealing plate in a sliding mode, and a fixing frame and a clamping block are connected to the outer sides of the sliding plates in a sliding mode.
Furthermore, the sliding plate and the fixing frame slide in a matched mode, a track is embedded in the outer side of the sliding plate, the clamping block slides in the track, and the fixing frame is installed on the inner wall of the shell.
Has the advantages that:
1. by utilizing the pressure extruded by the valve, the sliding block horizontally slides through the connecting rod, meanwhile, the sliding block drives the sleeve to horizontally slide, the sleeve is horizontally sleeved with the telescopic frame, the first lug on one side of the tooth piece is attached to the gear, and the first lug drives the second lug to angularly swing through the lever frame, so that the contact area between the tooth piece and the gear can be further increased conveniently in the sliding process of the tooth piece;
2. the expansion bracket and the sleeve extrude the both sides to the gasbag respectively, and the gasbag is whole by last to inboard swing, utilizes the gasbag shape to be crooked form, can the auxiliary sleeve return, and when the flight slides, the flight drives the gear swing, and the gear drives swinging arms and closing plate swing through the axle center, utilizes the closing plate further to seal the outside of valve, through the pressure after the valve is rotatory, can seal the gap between valve and the ball valve when the valve is rotatory.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic side sectional view of the housing of the present invention.
FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention.
FIG. 4 is a schematic view of a sway bar assembly of the present invention.
FIG. 5 is an enlarged view of the structure at B in FIG. 3 according to the present invention.
Fig. 6 is a schematic structural view of a mounting bracket assembly of the present invention.
In fig. 1 to 6, the correspondence between the component names and the reference numbers is:
1-shell, 101-valve, 2-slide block, 201-connecting rod, 202-sleeve, 203-telescopic frame, 204-tooth piece, 3-first projection, 301-lever frame, 302-second projection, 4-first rotating shaft, 401-air bag, 402-weight, 5-gear, 501-axle center, 502-oscillating rod, 503-sealing plate, 6-fixing frame, 601-clamping block, 602-sliding plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
Example (b):
as shown in figures 1 to 6:
example 1: a low-torque large-caliber ball valve comprises a shell 1, a valve 101 is rotatably arranged on the inner side of the shell 1, and a transmission mechanism capable of being automatically sealed is arranged on the inner side of the shell 1;
wherein: the valve 101 is arranged in a circular ring shape, the valve 101 is extruded to one side of the transmission mechanism when rotating, the transmission mechanism can automatically seal the outer side of the valve 101, and the condition that the gap of the valve 101 leaks is avoided;
the transmission mechanism comprises a sliding block 2, a connecting rod 201, a sleeve 202, a telescopic frame 203, a tooth piece 204, a first convex block 3, a lever frame 301 and a second convex block 302, wherein the sliding block 2 slides on two sides inside the shell 1, the connecting rod 201 swings at two ends of the sliding block 2, the sleeve 202 and the telescopic frame 203 sequentially slide on one side of the sliding block 2, the tooth piece 204 is distributed at two ends of the sleeve 202, the first convex block 3 and the second convex block 302 respectively slide and penetrate through two sides of the tooth piece 204, and the lever frame 301 swings on the inner sides of the first convex block 3 and the second convex block 302;
one side of the sliding block 2 close to the valve 101 is arranged in a semicircular arc shape, the connecting rod 201 is provided with a matched hinge, the connecting rod 201 is arranged in a semicircular arc shape, the interior of the sleeve 202 is arranged in a hollow shape, one side of the expansion bracket 203 is fixed in the shell 1, the tooth piece 204 is arranged in a triangular shape, the first lug 3 extends to the outer side 1-2cm of the tooth piece 204, and the lever frame 301 is arranged in the tooth piece 204;
wherein: by utilizing the pressure extruded by the valve 101, the sliding block 2 horizontally slides through the connecting rod 201, meanwhile, the sliding block 2 drives the sleeve 202 to horizontally slide, the sleeve 202 is horizontally sleeved with the telescopic frame 203, the first lug 3 on one side of the tooth piece 204 is attached to the gear 5, and the first lug 3 drives the second lug 302 to angularly swing through the lever frame 301, so that the contact area between the tooth piece 204 and the gear 5 can be further increased conveniently in the sliding process of the tooth piece 204;
when the valve 101 rotates, two sides of the valve 101 are respectively extruded to two sides of the sliding block 2, the sliding block 2 horizontally slides through the connecting rod 201 by utilizing the extrusion pressure of the valve 101, meanwhile, the sliding block 2 drives the sleeve 202 to horizontally slide, the sleeve 202 is horizontally sleeved with the telescopic frame 203, the first lug 3 on one side of the tooth piece 204 is attached to the gear 5, and the first lug 3 drives the second lug 302 to angularly swing through the lever frame 301, so that the sliding process of the tooth piece 204 can be facilitated;
wherein: the semi-arc angle of the connecting rod 201 is 180 degrees, the semi-arc can be used for assisting the sliding block 2 to return to the original position, when the sliding block 2 horizontally slides, the connecting rod 201 swings in an angle, and when the sliding block 2 is static, the connecting rod 201 is in a static state;
the first bump 3 drives the second bump 302 to extend to the outer side of the tooth piece 204 by using the lever frame 301, and when the second bump 302 extends to the outer side of the tooth piece 204, the first bump 3 is attached to the outer side of the tooth piece 204;
the sliding block 2 is in a semicircular arc shape by utilizing one side of the sliding block 2, so that the valve 101 is conveniently extruded to one side of the sliding block 2 when rotating;
example 2: as can be seen from fig. 3, 4 and 5 in the specification, embodiment 2 differs from embodiment 1 in that the transmission mechanism includes a first rotating shaft 4, an air bag 401, a weight 402, a gear 5, an axis 501, a swinging rod 502 and a sealing plate 503, the first rotating shaft 4 is hinged inside the sleeve 202, the air bag 401 and the weight 402 swing inside the first rotating shaft 4 respectively, the gear 5 rotates at two ends of the toothed sheet 204, the axis 501 is mounted at the central position of the gear 5, and the swinging rod 502 and the sealing plate 503 swing at one end of the axis 501 respectively;
the air bag 401 is arranged in a bending shape, the first rotating shaft 4 swings at the upper end and the lower end of the inner side of the air bag 401, the first rotating shaft 4 swings at the inner side of the upper end of the weight 402, and the swinging rod 502 and the sealing plate 503 are arranged in a semicircular arc shape;
wherein: the expansion bracket 203 and the sleeve 202 are respectively extruded to two sides of the air bag 401, the air bag 401 swings from top to inside as a whole, the shape of the air bag 401 is bent, the sleeve 202 can be assisted to return, when the tooth piece 204 slides, the tooth piece 204 drives the gear 5 to swing, the gear 5 drives the swing rod 502 and the sealing plate 503 to swing through the axis 501, the outer side of the valve 101 is further sealed through the sealing plate 503, and a gap between the valve 101 and the ball valve can be sealed when the valve 101 rotates through the pressure after the valve 101 rotates;
when the sleeve 202 slides, the expansion bracket 203 and the sleeve 202 are respectively extruded to two sides of the air bag 401, the air bag 401 swings from top to inside as a whole, the shape of the air bag 401 is bent, the sleeve 202 can be assisted to return, when the toothed sheet 204 slides, the toothed sheet 204 drives the gear 5 to swing, the gear 5 drives the swing rod 502 and the sealing plate 503 to swing through the axis 501, and the sealing plate 503 is used for further sealing the outer side of the valve 101;
wherein: the weight 402, the weight 402 can be any weight with the weight of 100 and 200 g;
when the sleeve 202 slides, the expansion bracket 203 and the sleeve 202 are respectively extruded to two sides of the air bag 401, the whole air bag 401 swings from top to inside, and the shape of the air bag 401 is bent to assist the sleeve 202 to return;
the semi-arc angle of the oscillating rod 502 is 15-60 degrees, when the gear 5 oscillates, the oscillating rod 502 and the sealing plate 503 oscillate at an angle respectively, and the oscillation angle is less than 20 degrees;
a sealing plate 503, the sealing plate 503 is attached to the inner wall of the housing 1 in a sliding manner;
example 3: as can be seen from fig. 6 in the specification, embodiment 3 is different from embodiments 1 and 2 in that sliding plates 603 are slid on both sides of a sealing plate 503, and a fixed frame 6 and a clamping block 601 are slidably connected to the outer sides of the sliding plates 603;
the sliding plate 603 and the fixed frame 6 slide in a matched manner, a track is embedded in the outer side of the sliding plate 603, the fixture block 601 slides in the track, and the fixed frame 6 is arranged on the inner wall of the shell 1;
wherein: when the sealing plate 503 slides, the sealing plate 503 drives the sliding plate 603 to slide inside the fixing frame 6, so that the stability of the sealing plate 503 can be improved by the sliding plate 603.

Claims (10)

1. The utility model provides a low moment of torsion heavy-calibre ball valve, includes shell (1), the inboard rotation of shell (1) has valve (101), its characterized in that: the inner side of the shell (1) is provided with a transmission mechanism capable of automatically sealing;
the transmission mechanism comprises a first rotating shaft (4), an air bag (401), a gear (5), an axle center (501), a swinging rod (502) and a sealing plate (503);
the air bag (401) is arranged in a bending shape, and the first rotating shaft (4) swings at the upper end and the lower end of the inner side of the air bag (401);
the oscillating rod (502) and the sealing plate (503) are arranged in a semicircular arc shape, the semicircular arc angle of the oscillating rod (502) is 15-60 degrees, when the gear (5) oscillates, the oscillating rod (502) and the sealing plate (503) respectively oscillate in an angle, and the oscillation angle is less than 20 degrees.
2. A low torque large bore ball valve according to claim 1, wherein: the air bag (401) swings at the inner side of the first rotating shaft (4), the gear (5) rotates at two ends of the toothed sheet (204), the shaft center (501) is installed at the central position of the gear (5), and the swinging rod (502) and the sealing plate (503) swing at one end of the shaft center (501) respectively.
3. A low torque large bore ball valve according to claim 1, wherein: drive mechanism includes slider (2), connecting rod (201), sleeve (202), expansion bracket (203), tooth piece (204), first lug (3), lever frame (301) and second lug (302), slider (2) slide in the inside both sides of shell (1), connecting rod (201) swing in the both ends of slider (2), sleeve (202) and expansion bracket (203) slide in one side of slider (2) in proper order, tooth piece (204) distribute in the both ends of sleeve (202), first lug (3) and second lug (302) slide respectively and run through in the both sides of tooth piece (204), lever frame (301) swing in the inboard of first lug (3) and second lug (302).
4. A low torque large bore ball valve according to claim 3, wherein: one side of the sliding block (2) close to the valve (101) is in a semicircular arc shape, and one side of the sliding block (2) is in a semicircular arc shape, so that the sliding block (2) can be conveniently extruded to one side of the sliding block (2) when the valve (101) rotates.
5. A low torque large bore ball valve according to claim 3, wherein: the connecting rod (201) is provided with a matched hinge, and the connecting rod (201) is arranged in a semicircular arc shape.
6. A low torque large bore ball valve according to claim 3, wherein: the sleeve (202) is arranged in a hollow shape, and one side of the expansion bracket (203) is fixed in the shell (1).
7. A low torque large bore ball valve according to claim 3, wherein: the tooth piece (204) is arranged in a triangular shape, the first bump (3) extends to the outer side of the tooth piece (204) by 1-2cm, and the lever frame (301) is installed inside the tooth piece (204).
8. The low torque large caliber ball valve according to claim 7, wherein: the first lug (3) drives the second lug (302) to extend to the outer side of the tooth piece (204) by utilizing the lever frame (301), and when the second lug (302) extends to the outer side of the tooth piece (204), the first lug (3) is attached to the outer side of the tooth piece (204).
9. A low torque large bore ball valve according to claim 1, wherein: sliding plates (603) are arranged on two sides of the sealing plate (503) in a sliding mode, and a fixing frame (6) and a clamping block (601) are connected to the outer sides of the sliding plates (603) in a sliding mode.
10. A low torque large bore ball valve according to claim 9, wherein: the sliding plate (603) and the fixing frame (6) slide in a matched mode, a track is embedded in the outer side of the sliding plate (603), the clamping block (601) slides in the track, and the fixing frame (6) is installed on the inner wall of the shell (1).
CN202111032511.8A 2021-09-03 2021-09-03 Low-torque large-caliber ball valve Withdrawn CN113958724A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111032511.8A CN113958724A (en) 2021-09-03 2021-09-03 Low-torque large-caliber ball valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111032511.8A CN113958724A (en) 2021-09-03 2021-09-03 Low-torque large-caliber ball valve

Publications (1)

Publication Number Publication Date
CN113958724A true CN113958724A (en) 2022-01-21

Family

ID=79460925

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111032511.8A Withdrawn CN113958724A (en) 2021-09-03 2021-09-03 Low-torque large-caliber ball valve

Country Status (1)

Country Link
CN (1) CN113958724A (en)

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PB01 Publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20220121

WW01 Invention patent application withdrawn after publication