CN112324930B - Eccentric water interception valve and installation method thereof - Google Patents

Eccentric water interception valve and installation method thereof Download PDF

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Publication number
CN112324930B
CN112324930B CN202011040747.1A CN202011040747A CN112324930B CN 112324930 B CN112324930 B CN 112324930B CN 202011040747 A CN202011040747 A CN 202011040747A CN 112324930 B CN112324930 B CN 112324930B
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valve
water
sealing
water inlet
sealing element
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CN112324930A (en
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尹卿
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Shanghai Zhicheng Boiler Equipment Co ltd
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Shanghai Zhicheng Boiler Equipment Co ltd
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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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • B25B27/24—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same mounting or demounting 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
    • F16K3/0209—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 the valve having a particular passage, e.g. provided with a filter, throttle or safety device
    • 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
    • F16K3/0218—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 only one sealing face
    • 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
    • F16K3/0227—Packings
    • 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
    • F16K3/0254—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 being operated by particular 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
    • 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
    • F16K3/10—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 with special arrangements for separating the sealing faces or for pressing them together
    • 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
    • F16K31/52—Mechanical actuating means with crank, eccentric, or cam
    • F16K31/523—Mechanical actuating means with crank, eccentric, or cam comprising a sliding valve
    • 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
    • F16K31/53—Mechanical actuating means with toothed gearing
    • F16K31/535—Mechanical actuating means with toothed gearing for rotating valves

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

Abstract

The application relates to an eccentric water interception valve and an installation method thereof, which relate to the technical field of valves and comprise a valve body and a valve rod, wherein the valve rod is connected with a valve core; the upper valve seat is provided with a communicating hole, a water inlet opening of the communicating hole is communicated with the water inlet pipeline, the valve core rotates to open or close a water outlet opening of the communicating hole, and the water outlet opening of the communicating hole is communicated with the water outlet pipeline; the water inlet opening and the water outlet opening of the communicating hole are respectively provided with a first sealing element and a second sealing element, the first sealing element is in coating sealing fit with the water inlet pipeline, and the second sealing element is in fitting sealing fit with the valve core in a closed state. The first sealing element and the second sealing element respectively play a role in improving the sealing performance of the joint of the communicating hole and the water inlet pipeline and the sealing performance of the closed matching of the communicating hole and the valve core, so that the aim of improving the sealing performance of the joint of the valve body and the water inlet pipeline is fulfilled.

Description

Eccentric water interception valve and installation method thereof
Technical Field
The application relates to the field of valves, in particular to an eccentric water interception valve and an installation method thereof.
Background
The eccentric water cut-off valve is also called an eccentric stop valve, and is a valve which realizes the opening and closing functions through the rotation motion of a valve core. The eccentric stop valve has the characteristics of light opening and closing, small sealing and abrasion resistance, small opening and closing moment, small volume, simple structure, convenient maintenance and difficult erosion by media, and is widely applied to working conditions requiring strict cutting-off, such as petroleum, chemical engineering, urban water supply and drainage and the like.
The current application publication number is CN 104879509A's chinese patent application file, it discloses an eccentric stop valve, including valve body and hemisphere and the valve rod of setting in the valve body internal phase connection, there is the valve gap top of valve body through bolted connection, be provided with seal gasket between valve gap and the valve body, be connected with rings on the valve gap, through round pin axle fixedly connected with hemisphere on the valve rod, play the spherical crown of sealing effect through screw fixedly connected with on the positive sphere of hemisphere, the one end that the valve rod was worn out outside the valve body passes through tee bend and handle fixed connection, and be provided with sealing mechanism between the one end that the valve rod was worn out the valve body and the valve body, sealing mechanism is including cup jointing the filler lock mother outside the valve rod and the filler of packing between filler lock mother and valve rod.
In the prior art, the sealing mechanism mainly has the effect of improving the sealing performance of the matching of the valve rod and the valve body, the joint of the valve body and the pipeline is not subjected to sealing treatment, the sealing performance of the joint of the valve body and the pipeline can influence the use safety and stability of the eccentric stop valve, and the prior art has the improvement part.
Disclosure of Invention
In order to achieve the purpose of improving the sealing performance of the joint of the valve body and the pipeline and further achieve the purpose of improving the use safety and stability of the eccentric water interception valve, the application provides the eccentric water interception valve and the installation method thereof.
In a first aspect, the present application provides an eccentric water shut-off valve, which adopts the following technical scheme:
an eccentric water interception valve comprises a valve body and a valve rod, wherein a valve core is connected to the valve rod, the valve body comprises an upper valve seat and a lower valve seat, and the upper valve seat and the lower valve seat are fixedly embraced on a water inlet pipeline; the upper valve seat is provided with a communicating hole, a water inlet opening of the communicating hole is communicated with a water inlet pipeline, the valve core rotates to open or close a water outlet opening of the communicating hole, and the water outlet opening of the communicating hole is communicated with a water outlet pipeline; the water inlet opening and the water outlet opening of the communicating hole are respectively provided with a first sealing piece and a second sealing piece, the first sealing piece and the second sealing piece are respectively provided with a first water through hole and a second water through hole, the first sealing piece is in coating sealing fit with the water inlet pipeline, and the second sealing piece is in laminating sealing fit with the valve core in a closed state.
By adopting the technical scheme, when the upper valve seat and the lower valve seat are matched and embraced to be fixed on the water inlet pipeline, the first sealing piece positioned at the water inlet opening of the communicating hole on the upper valve seat covers the outer wall of the water inlet pipeline so as to achieve the purpose of covering and sealing, and the second sealing piece positioned at the water outlet opening of the communicating hole is in contact with the valve core in a rotary closed state in a laminating manner so as to achieve the purpose of covering and sealing. The first sealing piece and the second sealing piece which are positioned at the water inlet opening and the water outlet opening of the communicating hole respectively play a role in improving the sealing performance of the connecting part of the communicating hole and the water inlet pipeline and the sealing performance of the sealing matching of the communicating hole and the valve core, so that the aim of comprehensively improving the sealing performance of the connecting part of the valve body of the eccentric water stop valve and the water inlet pipeline is fulfilled, and the aim of improving the use safety and stability of the eccentric water stop valve is fulfilled.
Preferably, the first sealing element is a rubber sealing element, the shape of the first sealing element is matched with that of the water inlet pipeline, and the first sealing element is elastically matched with the outer wall of the water inlet pipeline in a pressing and sealing manner; the upper valve seat is provided with an annular mounting groove, the first sealing element is integrally formed with an annular mounting protrusion, and the annular mounting protrusion is embedded and matched with the annular mounting groove.
Through adopting above-mentioned technical scheme, the shape of first sealing member and inlet channel's shape looks adaptation, and first sealing member itself has the characteristic of elastic extrusion deformation, when embracing and establishing the installation valve body, first sealing member can fully contact with the outer wall of inlet channel, and first sealing member passes through annular mounting groove and the protruding cooperation realization of annular installation with last valve base, when embracing and establishing the installation valve body, first sealing member is extruded, then the protruding extrusion of annular installation is inlayed and is located annular mounting groove, the water inlet leakproofness of intercommunicating pore has both been improved, there is the installation stability who has improved first sealing member and last valve base.
Preferably, an annular sealing protrusion is integrally formed on a sealing surface of the first sealing element, which is in contact with the water inlet pipeline, and the annular sealing protrusion is matched with the outer wall of the water inlet pipeline to form elastic extrusion sealing.
Through adopting above-mentioned technical scheme, when embracing installation disk seat and lower disk seat, the annular on the first sealing member is sealed protruding to be extruded between the outer wall of inlet channel and the major structure of first sealing member, is favorable to further improving the leakproofness of the water inlet opening part of intercommunicating pore.
Preferably, the first water through hole and the communication hole are coaxially formed, and the opening diameter of the first water through hole is larger than the water inlet opening diameter of the communication hole.
Through adopting above-mentioned technical scheme, both be convenient for the smooth and easy circulation of rivers, can provide certain deformability for the extrusion deformation of first elastic component again.
Preferably, the second seal is provided as a rubber seal; the second sealing element comprises an annular main body clamped and installed in the communicating hole, the second water through hole is formed in the annular main body, and the second sealing element extends towards the direction of the second water through hole to form a thin-wall sealing ring; when the valve core rotates to seal the communicating hole, the thin-wall sealing ring which is impacted by water flow and elastically deformed is matched with the valve core to form elastic extrusion sealing.
By adopting the technical scheme, after the valve core rotates to seal the water outlet opening of the communicating hole, the thin-wall sealing ring generates elastic deformation under the action of water pressure and is attached to the bottom surface of the valve core; the elastic deformation of the thin-wall sealing ring is used for sealing, so that the purpose of improving the sealing performance of the water outlet opening of the communicating hole is achieved.
Preferably, the communication hole is a stepped hole, the installation sleeve is coaxially clamped and installed in the communication hole, and the second sealing element is coaxially matched with the installation sleeve in an inserting manner; and a mounting ring is further arranged in the communication hole, and the mounting ring is matched with the mounting sleeve to clamp and fix the second sealing element.
Through adopting above-mentioned technical scheme, adopt the installation cover and the fixed second sealing member of mode installation that the collar matches the centre gripping, when realizing fixed second sealing member, improve the convenience of second sealing member installation.
Preferably, the installation sleeve and the communication hole form an interference insertion fit, and the second sealing element and the installation sleeve form an interference embedding fit.
Through adopting above-mentioned technical scheme, the interference inlays establishes the complex mounting means, is favorable to improving the installation fixed stability of installation cover and intercommunicating pore, is favorable to improving the installation fixed stability of second sealing member and installation cover simultaneously.
Preferably, the valve rod and the upper valve seat rotate to penetrate and match, and a first rubber ring and a second rubber ring are coaxially installed on the valve rod at intervals.
Through adopting above-mentioned technical scheme, at the in-process that eccentric water-saving valve used, have the inside that the rivers flowed in the disk seat, first rubber circle cooperatees with the second rubber circle and can play and improve valve rod pivoted leakproofness, can play certain dirt-proof effect simultaneously, and in addition, first rubber circle and second rubber circle can cooperate the damping formula rotation that realizes the valve rod.
In a second aspect, the application provides an eccentric water interception valve installation method, which adopts the following technical scheme:
s1, installing and fixing an eccentric water interception valve at a position pre-selected on a water inlet pipeline; s2, connecting the cutting equipment with a water outlet interface of the valve body, and cutting the outer wall of the water inlet pipeline by a cutting head of the cutting equipment through a communication hole in a state that the valve core is rotated and opened; s3, after the device to be cut finishes cutting operation, drawing out a cutting head of the cutting device towards the direction far away from the water inlet pipeline through the communicating hole, and at the moment, still connecting the cutting device with a water outlet interface of the valve body until a cut outer wall cutting block of the water inlet pipeline passes through the communicating hole under the action of water pressure jacking and moves into a cavity of the valve body; s4, the valve core is closed in a rotating mode, the cutting equipment is separated, the outer wall cutting block in the cavity of the valve body is taken out, and then the water outlet pipeline is connected with the water outlet connector of the valve body.
Through adopting above-mentioned technical scheme, construction operation personnel are at the relevant position department installation fixed valve body of inlet channel, then connect cutting equipment, carry out the cutting operation after that, and the outer wall stripping and slicing piece of the inlet channel of cutting separation is by ejecting the intercommunicating pore under the water pressure effect, and the case is rotated again this moment in order to seal the intercommunicating pore, and last separation cutting equipment takes out the outer wall stripping and slicing piece in the cavity of valve body, and connect outlet conduit and valve body. The structure of the eccentric water interception valve is matched with the movement mode of the cutting head of the cutting device, so that the purpose of installing the eccentric water interception valve without stopping water is achieved, and the purpose of accessing the water outlet pipeline without stopping water is achieved.
Preferably, a valve cover is fixedly installed on the upper valve seat, the valve cover and the upper valve seat are matched to form a cavity of the valve body, the valve core is horizontally and rotatably installed in the cavity of the valve body, and an accommodating space for accommodating the outer wall cutting block is formed between the valve core and the cavity of the valve body.
By adopting the technical scheme, the valve cover is matched with the upper valve seat to form an accommodating space for accommodating the valve core and the cut outer wall cutting block, and meanwhile, the accommodating space is used for the valve core to rotate; the accommodating space is formed, so that the simplicity of taking out the outer wall cut block is improved, and the normal rotation motion of the valve core cannot be influenced.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the first sealing element and the second sealing element are positioned at the water inlet opening and the water outlet opening of the communicating hole, and respectively play a role in improving the sealing property of the connecting part of the communicating hole and the water inlet pipeline and the sealing property of the sealing matching of the communicating hole and the valve core, so that the aim of comprehensively improving the sealing property of the connecting part of the valve body of the eccentric water-stop valve and the water inlet pipeline is fulfilled, and the aim of improving the use safety and stability of the eccentric water-stop valve is fulfilled;
2. the annular sealing protrusion on the first sealing element and the thin-wall sealing ring on the second sealing element respectively play a role in improving the sealing performance of the water inlet opening and the water outlet opening of the communication hole;
3. the structure of the eccentric water interception valve is matched with the movement mode of the cutting head of the cutting device, so that the purpose of installing the eccentric water interception valve without stopping water is achieved, and the purpose of accessing the water outlet pipeline without stopping water is achieved.
Drawings
FIG. 1 is a schematic diagram of an overall structure of an eccentric water interception valve according to an embodiment of the application;
FIG. 2 is a schematic view of the interior of the upper seat primarily showing the stem and core gearing;
FIG. 3 is a schematic view of a water outlet opening structure mainly used for showing a communication hole;
FIG. 4 is a schematic view of the structure of the communication hole inside the upper valve seat;
FIG. 5 is a schematic view mainly showing a mounting structure of the mounting member and the communication hole;
FIG. 6 is a schematic structural view of the mounting assembly;
FIG. 7 is a schematic view of the second seal;
FIG. 8 is a schematic view of the upper seat bottom communication hole;
FIG. 9 is a schematic view mainly showing the structure of the annular mounting groove;
FIG. 10 is a schematic view of the first seal;
fig. 11 is a flow chart of a method for installing the eccentric water interception valve according to the embodiment.
Description of reference numerals: 1. a valve body; 11. an upper valve seat; 111. an annular mounting groove; 12. a lower valve seat; 13. a water outlet interface; 14. a chamber; 15. a valve cover; 2. a mounting gap; 3. a communicating hole; 31. a water inlet opening; 32. a water outlet opening; 4. a valve stem; 41. a pinion gear; 42. a first rubber ring; 43. a second rubber ring; 5. a valve core; 51. a matching notch; 52. a gear edge; 6. a first seal member; 61. a first water passage hole; 62. an annular mounting projection; 63. an annular sealing protrusion; 7. a second seal member; 71. a second water through hole; 72. an annular body; 73. a fixing groove; 74. a thin-wall sealing ring; 8. mounting the component; 81. installing a sleeve; 811. clamping a plate; 812. a card sleeve; 82. and (7) installing a ring.
Detailed Description
The present application is described in further detail below with reference to figures 1-11.
The embodiment of the application discloses an eccentric water interception valve.
Referring to fig. 1 and 2, an eccentric water interception valve comprises a valve body 1 and a valve rod 4, wherein the valve body 1 comprises an upper valve seat 11 and a lower valve seat 12 which are matched with each other, and the upper valve seat 11 and the lower valve seat 12 are embraced and locked on a water inlet pipeline; the top of the upper valve seat 11 is also lockingly mounted with a valve cover 15, and the valve cover 15 is adapted to cooperate with the upper valve seat 11 to form the chamber 14. Referring to fig. 2 and 3, the upper valve seat 11 is vertically provided with a communication hole 3, a water inlet opening 31 of the communication hole 3 is communicated with a water inlet pipe, and a water outlet opening 32 of the communication hole 3 is communicated with the cavity 14 of the upper valve seat 11. Referring to fig. 2, the valve rod 4 is vertically penetrated and rotatably matched with the upper valve seat 11, the valve core 5 is connected to the valve rod 4, and the valve core 5 is driven by the valve rod 4 to rotate and simultaneously engaged to horizontally and eccentrically rotate in the cavity 14 of the upper valve seat 11. Referring to fig. 1 and 2, the upper valve seat 11 is opened to form a water outlet port 13, and the water outlet pipe is communicated with the water outlet port 13 and the cavity 14 of the upper valve seat 11. When the valve core 5 rotates horizontally and seals the water outlet opening 32 of the communicating hole 3, the eccentric water interception valve is closed, and the water inlet pipeline and the water outlet pipeline are blocked; when the valve core 5 rotates horizontally and opens the water outlet opening 32 of the communicating hole 3, the eccentric water cut-off valve is opened, and the water inlet pipeline is communicated with the water outlet pipeline.
Referring to fig. 2, a pinion 41 is coaxially installed at one end of the valve rod 4 extending into the chamber 14, a matching notch 51 is formed in the valve core 5 which rotates horizontally in the chamber 14, and a gear edge 52 which is engaged with the pinion 41 and is in driving fit is formed in the matching notch 51, so that a user can drive the valve core 5 to rotate eccentrically by driving the valve rod 4 to achieve the purpose of controlling the opening or closing of the eccentric water interception valve.
Referring to fig. 2, when the eccentric water-saving valve is opened and the water inlet pipe and the water outlet pipe are communicated, water flow can flow into the cavity 14 of the upper valve seat 11, so that the valve rod 4 needs to be sealed, namely, the first rubber ring 42 and the second rubber ring 43 are coaxially sleeved on the valve rod 4 at intervals, and the first rubber ring 42 and the second rubber ring 43 are both embedded and matched with the valve rod 4, meanwhile, the first rubber ring 42 and the second rubber ring 43 form damping rotation matching with the upper valve seat 11, and the smoothness of rotation of the valve rod 4 cannot be influenced.
Referring to fig. 3 and 4, the second sealing member 7 is mounted at the water outlet opening 32 of the communication hole 3, the second sealing member 7 is a rubber sealing member made of a rubber material, and the second sealing member 7 is a rubber sealing member having an approximately annular structure, and a second water through hole 71 is formed through the center position thereof. Referring to fig. 2 and 4, the second sealing member 7 is fixed in a snap-fit manner in the water outlet opening 32 of the communication hole 3, and is attached to the bottom surface of the valve body 5 facing the communication hole 3 when the valve body 5 is rotated to close the communication hole 3, so as to form an elastic press-fit seal.
Referring to fig. 3 and 4, a water outlet opening 32 of the communication hole 3 is formed inside the upper valve seat 11 and communicates with the chamber 14 inside the upper valve seat 11, and a mounting assembly 8 is inserted into the communication hole 3 at a position close to the water outlet opening 32, the mounting assembly 8 being integrally located in the communication hole 3 and used for fixing the second sealing member 7. The mounting assembly 8 comprises a mounting sleeve 81 and a mounting ring 82, the mounting sleeve 81 is coaxially clamped and fixed in the communicating hole 3, and the mounting sleeve 81 is matched with the mounting ring 82 to clamp and fix the second sealing element 7. Referring to fig. 6, the mounting sleeve 81 is integrally formed into a stepped cylindrical structure, which includes a middle clamping plate 811 and two clamping sleeves 812 respectively formed on two sides of the clamping plate 811, the clamping sleeves 812 are hollow cylindrical structures, the diameters of the clamping sleeves 812 on two sides are equal, and the two clamping sleeves 812 and the clamping plate 811 are coaxially and integrally formed and run through for communication. Referring to fig. 3, the communication hole 3 is also formed as a stepped hole, and the diameter of the communication hole 3 itself on the side close to the water outlet opening 32 is larger than that on the side close to the water inlet opening 31; referring to fig. 5 and 6, when the mounting sleeve 81 is inserted into the communication hole 3, the clamping plate 811 is clamped with the diameter-changing step of the communication hole 3, a mounting gap 2 is formed between the outer wall of the clamping sleeve 812 close to the water outlet opening 32 and the inner wall of the communication hole 3, and the second sealing member 7 is clamped and fixed in the mounting gap 2. The mounting ring 82 and the mounting sleeve 81 are coaxially arranged, and the mounting ring 82 is sleeved on the clamping sleeve 812 close to one side of the water outlet opening 32 and is matched with the clamping sleeve 812 to clamp and fix the second sealing element 7.
Referring to fig. 5 and 7, the second sealing member 7 includes an annular main body 72 coaxially sleeved on the ferrule 812, and a fixing groove 73 is coaxially formed on an end surface of the annular main body 72 facing the inside of the communication hole 3, that is, the annular main body 72 covers the ferrule 812 through the fixing groove 73 and is in plug-in fit with the ferrule 812, and an outer side portion of the annular main body 72 can be embedded in the installation gap 2. Referring to fig. 4 and 5, at the same time, the mounting ring 82 is also embedded in the mounting gap 2, that is, the mounting ring 82 and the annular main body 72 are embedded together and integrally clamped in the mounting gap 2, so as to achieve the purpose of mounting and fixing the second sealing element 7. In order to further improve the installation stability of the second sealing element 7, the installation sleeve 81 and the communication hole 3 form an interference plug-in fit, and the integral structure formed by the second sealing element 7 and the installation ring 82 and the installation gap 2 also form an interference plug-in fit.
Referring to fig. 7, the second water through hole 71 is coaxially formed in the annular main body 72 in a penetrating manner, and a thin-wall sealing ring 74 is formed in the annular main body 72 along the inner edge of the second water through hole 71 and extends towards the second water through hole 71, where the thin-wall sealing ring 74 is a ring of thin-wall annular rubber ring at the hole of the second water through hole 71. As shown in fig. 2, when the eccentric water trap is in a closed state, the thin-wall sealing ring 74 is attached to the bottom surface of the valve element 5 under the impact of the water flow, and because the thin-wall sealing ring 74 has a small thickness, an adsorption effect is generated between the thin-wall sealing ring 74 and the bottom surface of the valve element 5, and the thin-wall sealing ring and the valve element 5 form an elastic extrusion seal under the impact of the water flow, thereby further sealing the water outlet opening 32 of the communication hole 3.
Referring to fig. 8, the first sealing member 6 is mounted at the water inlet opening 31 of the communication hole 3, the first sealing member 6 is a rubber sealing member made of rubber, and the first sealing member 6 is a rubber sealing member having an approximately annular structure, and a first water passage hole 61 is formed at the center thereof. Referring to fig. 1, the first sealing element 6 is clamped and fixed to the bottom of the upper valve seat 11, and covers the outer wall of the water inlet pipe when the water inlet pipe is enclosed by the upper valve seat 11 and the lower valve seat 12, so as to form elastic extrusion coating sealing. The first seal member 6 serves to improve the sealing property of the connection between the water inlet opening 31 of the communication hole 3 and the water inlet pipe.
Referring to fig. 8 and 9, the water inlet opening 31 of the communication hole 3 is formed in the bottom of the upper seat 11, and the bottom of the upper seat 11 is formed with an annular mounting groove 111 around the water inlet opening 31 of the communication hole 3, the annular mounting groove 111 being formed coaxially with the communication hole 3. As shown in fig. 10, an annular mounting protrusion 62 is integrally formed on one side of the first sealing member 6 facing the upper valve seat 11, and the annular mounting protrusion 62 of the first sealing member 6 is embedded in the annular mounting groove 111 and is in interference fit, so as to achieve mounting fit of the first sealing member 6 and the upper valve seat 11. Referring to fig. 9 and 10, an annular sealing protrusion 63 is integrally formed on the first sealing member 6 on a side away from the upper valve seat 11, and the annular sealing protrusion 63 is coaxially disposed with the communication hole 3; referring to fig. 1, when the upper valve seat 11 and the lower valve seat 12 cooperate to surround the water inlet pipe, the first sealing element 6 is pressed between the outer wall of the water inlet pipe and the upper valve seat 11, and the annular sealing protrusion 63 is also pressed to deform, that is, while the first sealing element 6 and the water inlet pipe form an elastic pressing seal, the annular sealing protrusion 63 on the first sealing element 6 and the water inlet pipe also form an elastic pressing seal. The elastic extrusion sealing fit formed by the first sealing element 6, the annular sealing protrusion 63 and the water inlet pipeline is beneficial to further improving the communication sealing performance of the communication hole 3 and the water inlet pipeline.
The shape of the side of the first sealing element 6 facing the water inlet pipe is matched with the shape of the outer wall of the water inlet pipe, so that when the upper valve seat 11 and the lower valve seat 12 are combined, the first sealing element 6 can form a more tight extrusion sealing fit with the outer wall of the water inlet pipe. The first water through hole 61 of the first sealing element 6 is coaxially arranged with the communicating hole 3, and the aperture size of the first water through hole 61 needs to be larger than the aperture size of the water inlet opening 31 of the communicating hole 3, so that a deformation space is provided for the elastic extrusion deformation of the first sealing element 6, and the normal flow of water flow cannot be influenced.
The present embodiments are further described below with reference to specific acts and principles:
when a user installs the eccentric water cut-off valve, the upper valve seat 11 and the lower valve seat 12 are matched, clamped and locked on the water inlet pipeline, and in the process, the first sealing element 6 and the annular sealing protrusion 63 on the first sealing element 6 are in elastic extrusion fit with the outer wall of the water inlet pipeline, so that the aim of improving the sealing performance of the water inlet opening 31 of the communication hole 3 is fulfilled; when a user drives the valve core 5 to horizontally rotate and seals the water outlet opening 32 of the communicating hole 3, the second sealing element 7 and the thin-wall sealing ring 74 on the second sealing element 7 are in elastic extrusion fit with the bottom surface of the valve core 5, so that the aim of improving the sealing performance of the water outlet opening 32 of the communicating hole 3 is fulfilled.
The embodiment of the application also discloses an installation method of the eccentric water interception valve.
Referring to fig. 11, a method of installing an eccentric cutoff valve includes the steps of,
s1, installing a fixed eccentric water stop valve at a pre-selected position on a water inlet pipeline, namely, an upper valve seat 11 and a lower valve seat 12 are provided with the water inlet pipeline in an embracing mode and locked on the water inlet pipeline;
s2, the cutting equipment is connected with the water outlet port 13 of the valve body 1, the cutting head of the cutting equipment cuts the outer wall of the water inlet pipeline through the communicating hole 3 in the state that the valve core 5 is rotated to be opened, and when the cutting equipment is operated, the erection position of the cutting head of the cutting equipment needs to be noticed, and the cutting head cannot be in contact with the inner wall of the communicating hole 3, the second sealing element 7 or the mounting sleeve 81;
s3, after the device to be cut finishes cutting operation, driving a cutting head of the cutting device to move towards a direction far away from the water inlet pipeline through the communicating hole 3, and at the moment, still connecting the cutting device with a water outlet port 13 of the valve body 1 until a cut outer wall cutting block of the water inlet pipeline passes through the communicating hole 3 under the action of water pressure jacking and moves into a cavity 14 of the valve body 1;
s4, the valve core 5 is closed in a rotating mode, cutting equipment is separated, an outer wall cutting block in a cavity 14 of the valve body 1 is taken out (the size of the outer wall cutting block needs to be smaller than the aperture size of the communicating hole 3 and the opening size of the water outlet port 13 of the valve body 1, a valve cover 15 is installed on the upper valve seat 11 in a locking mode, the valve core 5 is installed in the cavity 14 of the valve body 1 in a horizontally rotating mode, an accommodating space used for accommodating the outer wall cutting block is formed between the valve core 5 and the cavity 14 of the valve body 1, so that an operator can rotate the valve core 5 and take out the outer wall cutting block), and finally a water outlet pipeline is connected with the water outlet port 13 of the valve body 1, and installation operation of the eccentric water stop valve is completed.
The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (7)

1. The utility model provides an eccentric water stop valve, including valve body (1) and valve rod (4), be connected with case (5), its characterized in that on valve rod (4): the valve body (1) comprises an upper valve seat (11) and a lower valve seat (12), and the upper valve seat (11) and the lower valve seat (12) are fixedly arranged on the water inlet pipeline in a surrounding manner; the upper valve seat (11) is provided with a communicating hole (3), a water inlet opening (31) of the communicating hole (3) is communicated with a water inlet pipeline, the valve core (5) rotates to open or close a water outlet opening (32) of the communicating hole (3), and the water outlet opening (32) of the communicating hole (3) is communicated with a water outlet pipeline; a first sealing element (6) and a second sealing element (7) are respectively arranged at a water inlet opening (31) and a water outlet opening (32) of the communicating hole (3), a first water through hole (61) and a second water through hole (71) are respectively formed in the first sealing element (6) and the second sealing element (7), the first sealing element (6) is in coating sealing fit with a water inlet pipeline, and the second sealing element (7) is in laminating sealing fit with the valve core (5) in a closed state;
the second seal (7) is provided as a rubber seal; the second sealing element (7) comprises an annular main body (72) clamped and installed in the communicating hole (3), the second water through hole (71) is formed in the annular main body (72), and the second sealing element (7) extends towards the second water through hole (71) to form a thin-wall sealing ring (74); when the valve core (5) rotates to seal the communicating hole (3), the thin-wall sealing ring (74) which is impacted by water flow and elastically deformed is matched with the valve core (5) to form elastic extrusion sealing;
the communicating hole (3) is a stepped hole, the communicating hole (3) is coaxially clamped with an installation sleeve (81), and the second sealing element (7) is coaxially inserted into the installation sleeve (81); a mounting ring (82) is further arranged in the communication hole (3), and the mounting ring (82) is matched with a mounting sleeve (81) to clamp and fix a second sealing element (7);
the installation sleeve (81) and the communication hole (3) form interference plug fit, and the second sealing element (7) and the installation sleeve (81) form interference embedded fit.
2. An eccentric water trap as defined in claim 1 wherein: the first sealing element (6) is a rubber sealing element, the shape of the first sealing element (6) is matched with that of the water inlet pipeline, and the first sealing element (6) is in elastic extrusion sealing fit with the outer wall of the water inlet pipeline; an annular mounting groove (111) is formed in the upper valve seat (11), an annular mounting protrusion (62) is integrally formed on the first sealing element (6), and the annular mounting protrusion (62) is embedded in the annular mounting groove (111) in a matching manner.
3. An eccentric intercept valve as claimed in claim 2 wherein: an annular sealing protrusion (63) is integrally formed on a sealing surface of the first sealing element (6) contacted with the water inlet pipeline, and the annular sealing protrusion (63) is matched with the outer wall of the water inlet pipeline to form elastic extrusion sealing.
4. An eccentric intercept valve as claimed in claim 2 wherein: the first water through hole (61) and the communication hole (3) are coaxially arranged, and the diameter of the hole of the first water through hole (61) is larger than that of the water inlet opening (31) of the communication hole (3).
5. An eccentric intercept valve as claimed in claim 1 wherein: valve rod (4) and last valve block (11) rotate to wear to establish the cooperation, just coaxial interval installs first rubber circle (42) and second rubber circle (43) on valve rod (4).
6. The method for installing the eccentric intercepting valve according to any one of claims 1 to 5, wherein: comprises the following steps of (a) carrying out,
s1, installing and fixing an eccentric water interception valve at a pre-selected position on a water inlet pipeline;
s2, the cutting equipment is connected with a water outlet connector (13) of the valve body (1), and a cutting head of the cutting equipment cuts the outer wall of the water inlet pipeline through a communication hole (3) in the state that the valve core (5) is rotated to be opened;
s3, after the cutting operation of the to-be-cut equipment is finished, the cutting head of the cutting equipment is drawn out towards the direction far away from the water inlet pipeline through the communicating hole (3), at the moment, the cutting equipment is still connected with the water outlet connector (13) of the valve body (1), and the cut water inlet pipeline outer wall cutting block passes through the communicating hole (3) and moves into the cavity (14) of the valve body (1) under the action of water pressure jacking;
s4, the valve core (5) is closed in a rotating mode, cutting equipment is separated, the outer wall cutting block in the cavity (14) of the valve body (1) is taken out, and then the water outlet pipeline is connected with the water outlet connector (13) of the valve body (1).
7. The method for installing the eccentric water interception valve according to claim 6, wherein: a valve cover (15) is installed on the upper valve seat (11) in a locking mode, the valve cover (15) and the upper valve seat (11) are matched to form a cavity (14) of the valve body (1), the valve core (5) is installed in the cavity (14) of the valve body (1) in a horizontal rotating mode, and an accommodating space used for accommodating outer wall cutting blocks is formed between the valve core (5) and the cavity (14) of the valve body (1).
CN202011040747.1A 2020-09-28 2020-09-28 Eccentric water interception valve and installation method thereof Active CN112324930B (en)

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CN2484464Y (en) * 2001-06-12 2002-04-03 萧山开元索具有限公司 Water receptable ball valve for boring hole with water
CN2718364Y (en) * 2003-10-20 2005-08-17 沈烈民 Water puncing eccentric water valve
CN2723805Y (en) * 2004-08-23 2005-09-07 南塑建材塑胶制品（深圳）有限公司 Branch tube connector working with water
CN103527883B (en) * 2013-10-28 2015-07-15 青岛港（集团）有限公司 Method for quickly drilling hole in steel pipe with water and connecting branch pipe to steel pipe
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