CN206001037U - self-cleaning ball valve - Google Patents

self-cleaning ball valve Download PDF

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Publication number
CN206001037U
CN206001037U CN201620996283.4U CN201620996283U CN206001037U CN 206001037 U CN206001037 U CN 206001037U CN 201620996283 U CN201620996283 U CN 201620996283U CN 206001037 U CN206001037 U CN 206001037U
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CN
China
Prior art keywords
valve
spheroid
seat
valve seat
scraper
Prior art date
Application number
CN201620996283.4U
Other languages
Chinese (zh)
Inventor
卓四斟
吴帮亮
Original Assignee
吴帮亮
卓四斟
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 吴帮亮, 卓四斟 filed Critical 吴帮亮
Priority to CN201620996283.4U priority Critical patent/CN206001037U/en
Application granted granted Critical
Publication of CN206001037U publication Critical patent/CN206001037U/en

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Abstract

A kind of Self-cleaning ball valve, including valve body, spheroid, valve rod and two valve gaps, slidably valve seat is set between spheroid and valve gap, scraper is set in the adjacent surface with spheroid for the valve seat, and the external diameter of scraper is bigger than sealing surface of seat external diameter, and scraper is in the presence of preloading spring thrust, all the time it is close to spheroid, when spheroid rotates, the crystalline material of spherome surface wiped off by scraper, and sealing surface of seat is after scraper, you can to contact with clean spherome surface.Valve seat is under the pretightning force of spring acts on, reach sealing minimum ratio pressure, when medium is when pushing flexible spring seat, in the presence of valve seat insert, valve seat is promoted to be close to spheroid, there is certain difference in areas between valve base sealing external diameter and spheroid and sealing surface of seat, form piston effect, form reliable sealing under the active force of medium.After scraper or the prooving of valve seat, automatic compensation can be realized under spring thrust.After scraper, valve seat or spheroid abrasion exceed automatic compensation range, only need to change scraper, valve seat and spheroid.

Description

Self-cleaning ball valve
Technical field:
This utility model is related to mechanical field, more particularly, to valve, particularly in the tubing of easy crystal medium 90 degree rotation cutting ball valves, a kind of particularly Self-cleaning ball valve.
Background technology:
In prior art, widely used V-type ball valve in easy crystallization tubing, V-type ball valve adopts eccentric structure, utilizes The postrotational eccentric force at ball centre and valve rod center makes sphere and valve seat laminating, reaches sealing effectiveness.As long as valve has out Degree, just has gap between valve seat and sphere, and during valve closing, spheroid is fitted to valve seat in the presence of valve rod eccentric force, There is medium to crystallize in spherome surface between valve seat and sphere, just cannot seal, and be susceptible to stuck or open and close moment The phenomenon such as increase.
Content of the invention:
The purpose of this utility model is to provide a kind of Self-cleaning ball valve, and described this Self-cleaning ball valve will solve existing In technology, the medium crystallization between valve seat and sphere leads to the technical problem that valve cannot seal.
This Self-cleaning ball valve of the present utility model, including valve body, spheroid, valve rod and two valve gaps, in described valve body Include a medium channel, described medium channel is provided with gateway at the two ends of valve body, and described valve gap sets respectively Put at the gateway at valve body two ends and be connected with valve body by securing member, described spheroid is arranged in the medium channel of valve body And be located between the gateway at valve body two ends, the bottom of spheroid is provided with spheroid rotary shaft, and the bottom of body cavity is provided with one Individual gripper shoe, the middle part of described gripper shoe is provided with an axis hole, and described spheroid rotary shaft extends downwardly into described axle Kong Zhong, described valve rod is fixedly connected on the top of spheroid, the central axes of the central axis of valve rod and spheroid rotary shaft, Described central axis upright is upward through the valve rod hole of body top and is arranged in the axial direction of medium channel, the upper end of valve rod Upper shaft sleeve on the upside of valve body, the top of described Upper shaft sleeve is provided with gland, described gland and Upper shaft sleeve and valve It is provided with airtight and watertight padding between bar, wherein, between any one of valve gap and spheroid, be all each provided with a valve seat, institute It is arranged in parallel to the sliding pair of medium channel axial direction, the outer face of valve seat is between the valve seat stated and the circumference inward wall of valve gap Circumferential step shape, is provided with a spring base between the outer face of valve seat and the end face of adjacent valve gap, described spring base The inner is provided with the circumferential step with the cooperation of valve seat outer face, the inner adjacent step surface with valve seat outer face of spring base Between be provided with sealing gasket, be circumferentially arranged at intervals with the bullet of more than three numbers between the outer end of spring base and valve gap end face Spring, spring base, sealing gasket and valve seat are biased by described spring to spheroid direction, include a taper seat in valve seat, described Taper seat in include a sealing surface of seat contacting with spheroid, embedded in the inner face of valve seat be provided with a ring and scrape Knife, the blade of described ring scraper is protruded from the inner face of valve seat and is contacted with spheroid, and the area of the outer face of valve seat is more than The area of described sealing surface of seat.
Further, radially it is provided with stop pin between ring scraper and valve seat.
Further, it is provided with preloading spring between ring scraper and valve seat.
Further, it is provided with gasket seal between valve gap and the end face of valve body.
Further, it is provided with oil-free lubrication axle sleeve between the axis hole of body cavity bottom support plate and spheroid rotary shaft.
Further, it is provided with dust guard between spring base and valve gap.
Operation principle of the present utility model is:Executor passes through flat key band ovable valve stem, drives spheroid to make 90 degree of rotations by valve rod Transhipment is moved to realize valve opening and closing.When spheroid rotates, the external diameter of scraper is bigger than sealing surface of seat external diameter, and scraper is in preloading spring In the presence of thrust, it is close to spheroid all the time.When spheroid rotates in the presence of scraper, automatically wipe the crystal of spherome surface off Body, sealing surface of seat is after scraper, you can to contact with clean spherome surface.Valve seat spring pretightning force act under, Reach sealing minimum ratio pressure, when medium is when pushing flexible spring seat, in the presence of valve seat insert, promote valve seat to be close to ball Body, has certain difference in areas between valve base sealing external diameter and spheroid and sealing surface of seat, form piston effect, in the effect of medium Form reliable sealing, when pressure medium is higher, sealing is more reliable under power.
Valve, after there is scraper or the prooving of valve seat using a period of time, can be realized in the presence of respective spring thrust Automatically compensate.After scraper, valve seat or spheroid erosive wear weight or abrasion exceed automatic compensation range, only need to change scraper, Valve seat and spheroid, thus easy to operate simple.Save material cost and maintenance time simultaneously.
This utility model compares with prior art, and its effect is positive and obvious.This utility model is in spheroid and valve Slidably valve seat is set between lid, the adjacent surface with spheroid for the valve seat arranges scraper, the external diameter of scraper compares sealing surface of seat External diameter is big, and scraper, in the presence of preloading spring thrust, is close to spheroid all the time, and when spheroid rotates, spherome surface wiped automatically off by scraper Crystalline material, sealing surface of seat is after scraper, you can to contact with clean spherome surface.Valve seat is in the pretightning force of spring Under effect, reach sealing minimum ratio pressure, when medium is when pushing flexible spring seat, in the presence of valve seat insert, promote valve seat It is close to spheroid, between valve base sealing external diameter and spheroid and sealing surface of seat, has certain difference in areas, form piston effect, in medium Active force under formed reliable seal, when pressure medium is higher, sealing is more reliable.There is scraper using a period of time in valve Or after the prooving of valve seat, automatic compensation can be realized in the presence of respective spring thrust.Scraper, valve seat or spheroid erosive wear After heavy or abrasion exceedes automatic compensation range, only need to change scraper, valve seat and spheroid, easy to operate simple, save material one-tenth Basis and maintenance time.
Brief description:
Fig. 1 is the axial arrangement schematic diagram of Self-cleaning ball valve of the present utility model.
Fig. 2 is the radial structure schematic diagram of Self-cleaning ball valve of the present utility model.
Fig. 3 is the assembling schematic diagram of the scraper, valve seat and spheroid in Self-cleaning ball valve of the present utility model.
Fig. 4 is the enlarged drawing of I part in Fig. 1.
Fig. 5 is the schematic diagram of the scraper in Self-cleaning ball valve of the present utility model.
Specific embodiment:
Embodiment 1:
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5, Self-cleaning ball valve of the present utility model, including valve body 1, spheroid 2, valve Bar 3 and two valve gaps 4, include a medium channel in described valve body 1, described medium channel is equal at the two ends of valve body 1 It is provided with gateway, described valve gap 4 is separately positioned at the gateway at valve body 1 two ends and is connected with valve body 1 by securing member 5 Connect, described spheroid 2 is arranged in the medium channel of valve body 1 and is located between the gateway at valve body 1 two ends, the bottom of spheroid 2 It is provided with spheroid rotary shaft, the bottom of valve body 1 inner chamber is provided with a gripper shoe 6, and the middle part of described gripper shoe 6 is provided with one Individual axis hole, described spheroid rotary shaft extends downwardly in described axis hole, and described valve rod 3 is fixedly connected on the top of spheroid 2 The central axes of portion, the central axis of valve rod 3 and spheroid rotary shaft, described central axis upright is in the axle of medium channel It is upward through the valve rod hole at valve body 1 top and the Upper shaft sleeve 7 being arranged on valve body 1 upside to the upper end of, valve rod 3, described upper shaft The top of set 7 is provided with gland 8, is provided with airtight and watertight padding 9 between described gland 8 and Upper shaft sleeve 7 and valve rod 3, Wherein, all it is each provided with a valve seat 10, described valve seat 10 and valve gap 4 between any one of valve gap 4 and spheroid 2 Circumference inward wall between be arranged in parallel to the sliding pair of medium channel axial direction, the outer face of valve seat 10 is in circumferential step shape, It is provided with a spring base 11, the inner of described spring base 11 between the outer face of valve seat 10 and the end face of adjacent valve gap 4 It is provided with the circumferential step with the cooperation of valve seat 10 outer face, the inner adjacent step with valve seat 10 outer face of spring base 11 It is provided with sealing gasket 12 between face, between the outer end of spring base 11 and valve gap 4 end face, be circumferentially arranged at intervals with more than three The spring 13 of number, spring base 11, sealing gasket 12 and valve seat 10 are biased, in valve seat 10 by described spring 13 to spheroid 2 direction Include a taper seat, in described taper seat, include a sealing surface of seat contacting with spheroid 2 14, valve seat 10 interior Embedded in end face be provided with a ring scraper 15, the blade of described ring scraper 15 protrude from valve seat 10 inner face and with Spheroid 2 contacts, and the area of the outer face of valve seat 10 is more than the area of described sealing surface of seat 14.
Further, radially it is provided with stop pin 16 between ring scraper 15 and valve seat 10.
Further, it is provided with preloading spring 17 between ring scraper 15 and valve seat 10.
Further, it is provided with gasket seal 18 between the end face of valve gap 4 and valve body 1.
Further, it is provided with oil-free lubrication axle sleeve between the axis hole of valve body 1 intracavity bottom gripper shoe 6 and spheroid rotary shaft 19.
Further, it is provided with dust guard 20 between spring base 11 and valve gap 4.
The operation principle of the present embodiment is:Executor 21 carries ovable valve stem 3 by flat key 22, drives spheroid 2 to make 90 by valve rod 3 Spend rotary motion to realize valve opening and closing.When spheroid 2 rotates, the external diameter of scraper is bigger than sealing surface of seat 14 external diameter, and scraper exists In the presence of preloading spring 13 thrust, it is close to spheroid 2 all the time.When spheroid 2 rotates in the presence of scraper, automatically wipe spheroid 2 off The crystalline material on surface, sealing surface of seat 14 is after scraper, you can to contact with clean spheroid 2 surface.Valve seat 10 is in bullet Under the pretightning force effect of spring 13, reach sealing minimum ratio pressure, when medium is when pushing flexible spring seat 11, in valve seat 10 sealing ring Under effect, promote valve seat 10 to be close to spheroid 2, between valve seat 10 seal outer diameter and spheroid 2 and sealing surface of seat 14, have certain face Product moment, forms piston effect, forms reliable sealing under the active force of medium, and when pressure medium is higher, sealing is more reliable.
Valve, can be in the presence of respective spring 13 thrust after there is scraper or valve seat 10 abrasion using a period of time Realize automatically compensating.After scraper, valve seat 10 or spheroid 2 erosive wear weight or abrasion exceed automatic compensation range, only need more Change scraper, valve seat 10 and spheroid 2, thus easy to operate simple.Save material cost and maintenance time simultaneously.

Claims (6)

1. a kind of Self-cleaning ball valve, including valve body, spheroid, valve rod and two valve gaps, includes a medium in described valve body Passage, described medium channel is provided with gateway at the two ends of valve body, and described valve gap is separately positioned on valve body two ends It is connected with valve body at gateway and by securing member, described spheroid is arranged in the medium channel of valve body and is located at valve body two ends Gateway between, the bottom of spheroid is provided with spheroid rotary shaft, and the bottom of body cavity is provided with a gripper shoe, described The middle part of gripper shoe is provided with an axis hole, and described spheroid rotary shaft extends downwardly in described axis hole, described valve rod It is fixedly connected on the top of spheroid, the central axes of the central axis of valve rod and spheroid rotary shaft, described central axis Perpendicular to the axial direction of medium channel, the upper end of valve rod is upward through the valve rod hole of body top and is arranged on the upper shaft on the upside of valve body Set, the top of described Upper shaft sleeve is provided with gland, is provided with close between described gland and Upper shaft sleeve and valve rod Packing material it is characterised in that:All it is each provided with a valve seat, described valve seat between any one of valve gap and spheroid It is arranged in parallel to the sliding pair of medium channel axial direction and the circumference inward wall of valve gap between, the outer face of valve seat is in circumferential step Shape, is provided with a spring base between the outer face of valve seat and the end face of adjacent valve gap, described the inner of spring base is arranged There is the circumferential step with the cooperation of valve seat outer face, spring base is inner to be arranged and an adjacent step surface of valve seat outer face between There is sealing gasket, between the outer end of spring base and valve gap end face, be circumferentially arranged at intervals with the spring of more than three numbers, described Spring spring base, sealing gasket and valve seat are biased to spheroid direction, include a taper seat in valve seat, described taper seat In include a sealing surface of seat contacting with spheroid, embedded in the inner face of valve seat be provided with a ring scraper, described The blade of ring scraper protrude from the inner face of valve seat and contact with spheroid, the area of the outer face of valve seat is more than described valve The area of seat sealing surface.
2. Self-cleaning ball valve as claimed in claim 1 it is characterised in that:Radially it is provided between ring scraper and valve seat Stop pin.
3. Self-cleaning ball valve as claimed in claim 1 it is characterised in that:It is provided with pretension bullet between ring scraper and valve seat Spring.
4. Self-cleaning ball valve as claimed in claim 1 it is characterised in that:It is provided with sealing gasket between valve gap and the end face of valve body Piece.
5. Self-cleaning ball valve as claimed in claim 1 it is characterised in that:The axis hole of body cavity bottom support plate and spheroid turn It is provided with oil-free lubrication axle sleeve between moving axis.
6. Self-cleaning ball valve as claimed in claim 1 it is characterised in that:It is provided with dust guard between spring base and valve gap.
CN201620996283.4U 2016-08-30 2016-08-30 self-cleaning ball valve CN206001037U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620996283.4U CN206001037U (en) 2016-08-30 2016-08-30 self-cleaning ball valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620996283.4U CN206001037U (en) 2016-08-30 2016-08-30 self-cleaning ball valve

Publications (1)

Publication Number Publication Date
CN206001037U true CN206001037U (en) 2017-03-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620996283.4U CN206001037U (en) 2016-08-30 2016-08-30 self-cleaning ball valve

Country Status (1)

Country Link
CN (1) CN206001037U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107559448A (en) * 2017-10-18 2018-01-09 兰州高压阀门有限公司 A kind of high-temperature wearable hard seal ball valve seat with dustproof construction
CN108253149A (en) * 2016-12-29 2018-07-06 上海纽京工业设备有限公司 The program-controlled ball valve of polyolefin
CN110513502A (en) * 2019-08-27 2019-11-29 志泰阀门有限公司 Crystallize dedicated regulation valve
CN110529621A (en) * 2019-08-27 2019-12-03 志泰阀门有限公司 Crystallize Special cut-off valve

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108253149A (en) * 2016-12-29 2018-07-06 上海纽京工业设备有限公司 The program-controlled ball valve of polyolefin
CN107559448A (en) * 2017-10-18 2018-01-09 兰州高压阀门有限公司 A kind of high-temperature wearable hard seal ball valve seat with dustproof construction
CN110513502A (en) * 2019-08-27 2019-11-29 志泰阀门有限公司 Crystallize dedicated regulation valve
CN110529621A (en) * 2019-08-27 2019-12-03 志泰阀门有限公司 Crystallize Special cut-off valve

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