CN201253838Y - Mounting or dismounting tools for valve plate and valve seat of gate valve - Google Patents

Mounting or dismounting tools for valve plate and valve seat of gate valve Download PDF

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Publication number
CN201253838Y
CN201253838Y CNU2008201404426U CN200820140442U CN201253838Y CN 201253838 Y CN201253838 Y CN 201253838Y CN U2008201404426 U CNU2008201404426 U CN U2008201404426U CN 200820140442 U CN200820140442 U CN 200820140442U CN 201253838 Y CN201253838 Y CN 201253838Y
Authority
CN
China
Prior art keywords
valve
pellet
seat
bloated
valve seat
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.)
Expired - Fee Related
Application number
CNU2008201404426U
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Chinese (zh)
Inventor
杨学峰
李萍
陈文斌
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.)
CNPC Chuanqing Drilling Engineering Co Ltd
Original Assignee
CNPC Chuanqing Drilling Engineering 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 CNPC Chuanqing Drilling Engineering Co Ltd filed Critical CNPC Chuanqing Drilling Engineering Co Ltd
Priority to CNU2008201404426U priority Critical patent/CN201253838Y/en
Application granted granted Critical
Publication of CN201253838Y publication Critical patent/CN201253838Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

A gate valve, valve plate and valve seat assembly and disassembly tool belongs to the gate valve maintenance tool manufacturing technical field; through a way that a pull block is vertically embedded into a groove of the valve seat, a valve plate which can be assembled and disassembled is designed; the gate valve, valve plate and valve seat assembly and disassembly tool, which can also be used to disassemble the valve seat when the valve seat is blocked; the assembly and disassembly tool comprises a thrusting mechanism and an extrusion-bulging mechanism; the thrusting mechanism comprises a push rod, a pull rod, a connecting bolt, a stop block, a nut, a pull rod base and a bolt; the push rod is arranged in the pull rod; the pull rod base, the nut and the stop block are arranged on a flange arranged on the end face of the valve body through the bolt; the utility model solves the problems that the head part of the pull block in prior art is difficult to operate due to abrasion and can not be used to disassemble the valve seat; the utility model is rapid and durable and can be used to assemble and disassemble the valve plates and the valve seats of gate valves with 65 mm diameter and various pressure levels through the lengthening and shortening of the pull rod and the push rod.

Description

Mounting or dismounting tools for valve plate and valve seat of gate valve
Technical field: a kind of mounting or dismounting tools for valve plate and valve seat of gate valve, be used for the mounting or dismounting of petroleum gas well head device, well control equipment valve plate and valve seat of gate valve, belong to the maintenance tool manufacturing technology field of gate valve on wellhead assembly, the well-control equipment.
Background technology: in the prior art, what the valve plate and valve seat of gate valve mounting or dismounting that have wavy spring were adopted is that the scissors instrument is installed and removed, when implementing the valve plate and valve seat of gate valve mounting or dismounting, the pulling block of instrument front end need be put into the groove of valve seat could strain valve seat, thereby pack valve plate into, the shortcoming of prior art is: because the pulling block head is positioned at the front end that mounting or dismounting tools is cut arm, and the centre of gyration of cutting arm is in the middle part of cutting arm, so when cutting arm and open, the running orbit that is in the pulling block of cutting the arm front end can open according to circular trace, make and be in the pulling block of cutting the arm front end and be not easy very much in the groove of inserted valve seat, the insertion that needs repeated multiple times to carry out pulling block just can make draws the groove that enters valve seat soon, because friction is repeatedly used, the head of pulling block can become circular arc owing to wearing and tearing, the fast head that draws of circular arc makes operation more difficult, and after the head wearing and tearing of pulling block, entire tool is just only scrapped; In addition, the scissors instrument can only be strained the mounting or dismounting that valve seat carries out valve plate, and in valve seat is stuck in valve body hole the time, can not be used for dismantling valve seat.
Summary of the invention: the utility model is the problem that exists at prior art, adopts the mode in the vertical inserted valve seat groove of pulling block, and having designed a kind of is detachable valve plate, the mounting or dismounting tools for valve plate and valve seat of gate valve of dismounting valve seat when also can be used for the valve seat jam takes place.
The utility model is achieved in that the utility model comprises top-pushing mechanism and extrusion and expansion machine structure, it is characterized in that: top-pushing mechanism is made of push rod 1, pull bar 3, connecting bolt 4, block 11, nut 10, draw-bar seat 9 and bolt 2, push rod 1 is arranged in the pull bar 3, is connected with draw-bar seat 9, nut 10 and block 11 by bolt 2 on the flange of valve body end face;
The extrusion and expansion machine structure is made of bloated pellet 7, pellet seat 14, the zero type rubber seal 6 that expand and Connection Block 5, leaves clearance groove between Connection Block 5 and bloated pellet seat 14, the middle pellet plush copper 13 that expands that is provided with on bloated pellet 7 cylindricals;
Described pull bar 3 is hollow, is provided with Connection Block 5 at the front end of pull bar 3;
The front end of described push rod 1 is provided with bullet 12, and the front end of bullet 12 and push rod 1 is by being threaded;
Described bloated pellet 7 is arranged in the clearance groove between Connection Block 5 and the bloated pellet seat 14, and the thickness of the pellet 7 that expands leaves the hole that connecting bolt 4 is passed through less than the clearance groove between Connection Block 5 and the bloated pellet seat 14 on every bloated pellet 7;
Described bloated pellet 7 is made of two semicircles, also can be three formations, and the pellet 7 middle circle cambered surfaces that expand are the conical surfaces that match with conical head;
Described bloated pellet seat 14 is connected by the connecting bolt 4 that is arranged on the Connection Block 5 with pull bar 3;
The both sides of described bloated pellet plush copper 13 are provided with arc groove, and zero type rubber seal 6 is arranged in the arc groove on pellet plush copper 13 both sides of expanding;
Described nut 10 and block 11 respectively knob on the pull bar 3 and be enclosed within on the pull bar 3;
Diameter stimulating the menstrual flow after described zero type rubber seal 6 is shunk less than valve body 16;
During use, first assembling tool is implemented the installation or the dismounting of valve plate and valve seat then;
The installation of valve plate and valve seat:
The tool assembly of regaining the pellet 7 that expands is put into the gate valve passage, with spanner rotation push rod 1, the cone of push rod 1 head is pushed expand the conical surface in the pellet 7, and make in the technology groove of core plush copper 13 inserted valve seats that expand the nut 10 on the rotating rod, tool assembly integral body is pulled outwardly, the valve seat integral installation is put in place, when valve seat all move to into after, the size between two valve seats is greater than the thickness of valve plate, at this moment just valve plate can be inserted the space between two valve seats, carry out the installation exercise of valve plate; After valve plate 8 installs, unscrew nut 10 after, under the effect of wavy spring, two valve seats are just on two end faces that are pressed in valve plate tightly; Carry out above-mentioned contrary operation, with the taking-up of tool assembly, the installation exercise of valve plate is finished;
Valve plate, the dismounting of valve seat:
The valve plate valve seat installation procedure operation of the tool assembly that assembles being pressed gate valve is in place, turn clockwise nut 10 on the pull bar 3 under the stopping of block 11, forces tool assembly integral body to be pulled outwardly, when the size between two valve seats is pulled to thickness greater than valve plate, just valve plate can be taken out; After taking out valve plate, the nut 10 on the counter-clockwise rotating rod 3 under the stopping of draw-bar seat 9, makes pull bar 3 drive tool assembly and valve seat motion in the middle part of valve body, thereby pulls down the valve seat that is stuck in the valve seat cover body opening;
The beneficial effects of the utility model are: the bloated pellet plush copper that is arranged on the push rod front end pellet that will expand squeezes in the technology groove of circle in valve seat firmly, the push rod as long as the step circles round, valve seat and dismounting valve seat just can be installed smoothly, under the effect of block that is provided with and draw-bar seat, as long as valve seat and valve plate can be loaded onto and pull down to clockwise or inhour rotation nut just easily, have quick, convenient and durable characteristics, by extending and shortening pull bar, push rod length, be applicable to valve plate mounting or dismounting, the valve seat dismounting of the gate valve of other 65mm latus rectum of various pressure stages.
Description of drawings:
Fig. 1 is the cross-sectional view of the utility model user mode.
Fig. 2 is an amplification profile structural representation of the present utility model.
The specific embodiment: the utility model is achieved in that the utility model comprises top-pushing mechanism and extrusion and expansion machine structure, top-pushing mechanism is by push rod 1, pull bar 3, connecting bolt 4, block 11, nut 10, draw-bar seat 9 and bolt 2 constitute, pull bar 3 is hollow, push rod 1 is arranged in the pull bar 3, front end at push rod 1 is provided with bullet 12, the front end of bullet 12 and push rod 1 is by being threaded, front end at pull bar 3 is provided with Connection Block 5, on the flange of valve body end face, be fixedly connected with draw-bar seat 9 by bolt 2, nut 10 and block 11 respectively knob on the pull bar 3 and be enclosed within on the pull bar 3;
The extrusion and expansion machine structure is made of bloated pellet 7, pellet seat 14, the zero type rubber seal 6 that expand, and the pellet 7 that expands is made of two semicircles, also can be that three semicircles constitute; Be provided with the pellet plush copper 13 that expands in the middle of the cylindrical of pellet 7 that expands, the pellet plush copper 13 that expands matches with the groove of valve seat 15, and the pellet 7 middle circle cambered surfaces that expand are the cone structures that match with conical head; The pellet seat 14 that expands is connected by the connecting bolt 4 that is arranged on the Connection Block 5 with pull bar 3; The pellet 7 that expands is arranged between Connection Block 5 and the bloated pellet seat 14, on every bloated pellet 7, leave the hole that connecting bolt 4 is passed through, between Connection Block 5 and bloated pellet seat 14, leave clearance groove, the thickness of bloated pellet 7 is less than the clearance groove between Connection Block 5 and the bloated pellet seat 14, both sides in the bloated pellet plush copper 13 of pellet 7 cylindricals that expands are provided with arc groove, diameter the stimulating the menstrual flow less than valve body 16 after zero type rubber seal 6 is shunk;
During use, according to once the order first assembling tool:
Earlier push rod 1 is packed in the hole of pull bar 3, load onto cone 12, and screw screw thread cone 12 is all entered in the inner chamber of pull bar 3 at the front end of push rod 1; Pass the screw of Connection Block 5 ends and the screw of bloated pellet seat 14 is connected with connecting bolt 4, connect the back and just between Connection Block 5 and bloated pellet seat 14, formed clearance groove, then two bloated pellets 7 are respectively charged in the clearance groove that forms by Connection Block 5 and bloated pellet seat 14; In pellet 7 cylindricals that expand expand the arc groove on both sides of pellet plush copper 13, load onto zero shape rubber seal 6 then,, the pellet 7 that expands is fully retracted in the clearance groove between Connection Block 5 and the bloated pellet seat 14 because zero shape rubber seal 6 has elasticity; Nut 10 and block 11 respectively knob on the pull bar 3 and be enclosed within on the pull bar 3; Just the installation and removal work of valve seat and valve plate can have been carried out after assembling instrument.
The installation of gate valve valve plate and valve seat:
With push rod 1 inhour rotation, driving conical head 12 reclaims, after the pellet 7 that expands loses crowded the expanding of conical head 12, under the effect of zero shape rubber seal 6 withdrawal clearance groove in, at this moment expand external diameter the stimulating the menstrual flow of pellet 7 less than gate valve, the tool assembly of regaining the pellet 7 that expands is put into the gate valve passage, valve seat 15 is put into the valve seat cover of valve body, the bloated core plush copper 13 of pellet 7 of will expanding is then aimed at the technology groove on the circle in the valve seats, block pull bar 3 with spanner, pull bar 3 can not be rotated, rotate push rod 1 then, push rod 1 is inwardly promoted, the cone of push rod 1 head is pushed the cone structure of pellet 7 centres of expanding, the elastic force that makes the pellet 7 that expands overcome zero shape rubber seal outwards swells, and makes in the technology groove of core plush copper 13 inserted valve seats that expand; After push rod 1 inwardly screwed, block pull bar 3, be rotatably provided in the nut 10 on the pull bar, tool assembly integral body is pulled outwardly, force the valve seat integral installation to put in place, after two valve seats on gate valve both sides were all moved the position to, the size between two valve seats was greater than the thickness of valve plate, at this moment just valve plate can be inserted the space between two valve seats, carry out the installation exercise of valve plate; In order to make valve seat produce pretightning force and to play the effect of sealing to valve plate, in the valve seat cover, wavy spring is housed, so, after valve plate 8 installs, unscrew nut 10 after, under the effect of wavy spring, two valve seats are just on two end faces that are pressed in valve plate tightly; Carry out the contrary operation of above operation, tool assembly is taken out, the installation exercise of valve plate is finished;
The gate valve valve plate, the dismounting of valve seat:
With the tool assembly that assembles insert in place after, push rod 1 is screwed, the pellet 7 that expands is clamp-oned in the technology groove of valve seat 15 by bloated core plush copper 13, blocks pull bar 2, and it can not be rotated, nut 10 on the pull bar 3 then turns clockwise, under the stopping of block 11, force tool assembly integral body to be pulled outwardly, the compressing wavy spring, when the size between two valve seats is pulled to thickness greater than valve plate, just valve plate can be taken out; After taking out valve plate, valve seat also is stuck in the valve seat cover, at this moment, the nut 10 on the counter-clockwise rotating rod 3 is under the stopping of draw-bar seat 9, make pull bar 3 drive tool assembly and valve seat motion in the middle part of valve body, thereby pull down the valve seat that is stuck in the valve seat cover, finish dismantlement work, carry out the contrary operation of above operation then, tool assembly is taken out, and the field-strip of valve plate is finished.

Claims (8)

1, a kind of mounting or dismounting tools for valve plate and valve seat of gate valve, comprise top-pushing mechanism and extrusion and expansion machine structure, it is characterized in that: top-pushing mechanism is made of push rod, pull bar, connecting bolt, block, nut, draw-bar seat and bolt, push rod is arranged in the pull bar, is connected with draw-bar seat, nut and block by bolt on the flange of valve body end face; The extrusion and expansion machine structure is by bloated pellet, the pellet seat that expands, and zero type rubber seal and Connection Block constitute, and leave clearance groove between Connection Block and bloated pellet seat, is provided with the pellet plush copper that expands in the centre of the pellet cylindrical that expands.
2, mounting or dismounting tools for valve plate and valve seat of gate valve according to claim 1 is characterized in that: described pull bar is hollow, is provided with Connection Block at the front end of pull bar.
3, mounting or dismounting tools for valve plate and valve seat of gate valve according to claim 1 is characterized in that: the front end at described push rod is provided with bullet, and the front end of bullet and push rod is by being threaded.
4, mounting or dismounting tools for valve plate and valve seat of gate valve according to claim 1, it is characterized in that: described bloated pellet is arranged in the clearance groove between Connection Block and the bloated pellet seat, the thickness of bloated pellet leaves the hole that connecting bolt is passed through less than the clearance groove between Connection Block and the bloated pellet seat on every bloated pellet.
5, mounting or dismounting tools for valve plate and valve seat of gate valve according to claim 1 is characterized in that: described bloated pellet is made of two semicircles, also can be three formations, and the pellet middle circle cambered surface that expands is the conical surface that matches with conical head.
6, mounting or dismounting tools for valve plate and valve seat of gate valve according to claim 1 is characterized in that: described bloated pellet seat is connected by the connecting bolt that is arranged on the Connection Block with pull bar.
7, mounting or dismounting tools for valve plate and valve seat of gate valve according to claim 1 is characterized in that: the both sides of described bloated pellet plush copper are provided with arc groove, and zero type rubber seal is arranged in the arc groove on the pellet plush copper both sides of expanding.
8, mounting or dismounting tools for valve plate and valve seat of gate valve according to claim 1 is characterized in that: described nut and block respectively knob on the pull bar and be enclosed within on the pull bar.
CNU2008201404426U 2008-09-23 2008-09-23 Mounting or dismounting tools for valve plate and valve seat of gate valve Expired - Fee Related CN201253838Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008201404426U CN201253838Y (en) 2008-09-23 2008-09-23 Mounting or dismounting tools for valve plate and valve seat of gate valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008201404426U CN201253838Y (en) 2008-09-23 2008-09-23 Mounting or dismounting tools for valve plate and valve seat of gate valve

Publications (1)

Publication Number Publication Date
CN201253838Y true CN201253838Y (en) 2009-06-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Link
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102218730A (en) * 2011-06-03 2011-10-19 彭峻崎 Rapid clamping table for air valve of compressor
CN102463556A (en) * 2010-11-04 2012-05-23 中芯国际集成电路制造(上海)有限公司 Portable valve auxiliary disassembling tool
CN103061772A (en) * 2013-01-07 2013-04-24 上海隧道工程股份有限公司 Safe replacement device for soil pressure sensor
CN103341844A (en) * 2013-07-15 2013-10-09 天津百利展发集团有限公司 Installation tool for gate valve base
CN106828476A (en) * 2017-03-01 2017-06-13 江金华 A kind of mechanical plug-type gas control for brake main valve
CN110762259A (en) * 2019-11-16 2020-02-07 永嘉企达知识产权咨询有限公司 Swing check valve
CN111678643A (en) * 2020-06-23 2020-09-18 麦克传感器股份有限公司 Device convenient to disassemble and reliable in sealing and suitable for testing pressure transmitter parts

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102463556A (en) * 2010-11-04 2012-05-23 中芯国际集成电路制造(上海)有限公司 Portable valve auxiliary disassembling tool
CN102218730A (en) * 2011-06-03 2011-10-19 彭峻崎 Rapid clamping table for air valve of compressor
CN103061772A (en) * 2013-01-07 2013-04-24 上海隧道工程股份有限公司 Safe replacement device for soil pressure sensor
CN103061772B (en) * 2013-01-07 2015-04-01 上海隧道工程股份有限公司 Safe replacement device for soil pressure sensor
CN103341844A (en) * 2013-07-15 2013-10-09 天津百利展发集团有限公司 Installation tool for gate valve base
CN106828476A (en) * 2017-03-01 2017-06-13 江金华 A kind of mechanical plug-type gas control for brake main valve
CN110762259A (en) * 2019-11-16 2020-02-07 永嘉企达知识产权咨询有限公司 Swing check valve
CN110762259B (en) * 2019-11-16 2021-07-20 慎江阀门有限公司 Swing check valve
CN111678643A (en) * 2020-06-23 2020-09-18 麦克传感器股份有限公司 Device convenient to disassemble and reliable in sealing and suitable for testing pressure transmitter parts
CN111678643B (en) * 2020-06-23 2022-02-01 麦克传感器股份有限公司 Device convenient to disassemble and reliable in sealing and suitable for testing pressure transmitter parts

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090610

Termination date: 20150923

EXPY Termination of patent right or utility model