CN205654904U - Eccentric half -ball valve - Google Patents

Eccentric half -ball valve Download PDF

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Publication number
CN205654904U
CN205654904U CN201620441683.9U CN201620441683U CN205654904U CN 205654904 U CN205654904 U CN 205654904U CN 201620441683 U CN201620441683 U CN 201620441683U CN 205654904 U CN205654904 U CN 205654904U
Authority
CN
China
Prior art keywords
valve
packing cavity
valve body
axle sleeve
eccentric half
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.)
Active
Application number
CN201620441683.9U
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Chinese (zh)
Inventor
郑英雅
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.)
Tianjin Xin Te Valve Manufacture Co Ltd
Original Assignee
Tianjin Xin Te Valve Manufacture 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 Tianjin Xin Te Valve Manufacture Co Ltd filed Critical Tianjin Xin Te Valve Manufacture Co Ltd
Priority to CN201620441683.9U priority Critical patent/CN205654904U/en
Application granted granted Critical
Publication of CN205654904U publication Critical patent/CN205654904U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model belongs to the technical field of the valve, especially, relate to an eccentric half -ball valve. The utility model discloses a valve body, the mounting hole has been offered at the top of valve body, is provided with the axle sleeve in the mounting hole, installs the main valve stem in the axle sleeve, and auxiliary valve rod is installed to the bottom of valve body, fixedly connected with hemisphere case between main valve stem and the auxiliary valve rod, the upper end of main valve stem is provided with valve rod driven mechanism, the surface of hemisphere case is provided with annular seal installation groove, and the seal installation inslot is inlayed there is abrasion -resistant alloy, the fluid entrance is provided with the disk seat and is used for the clamp plate of solid fixed valve seat, and the interior terminal surface of disk seat is provided with annular sealing piece, and annular sealing piece's material is abrasion -resistant alloy, annular sealing piece can imbed in the seal installation groove, be provided with the packing cavity between valve body and the axle sleeve, the packing cavity intussuseption is filled with the filler, and the upper end of packing cavity is provided with gland.

Description

A kind of eccentric half-ball valve
Technical field
This utility model belongs to valve technology field, particularly relates to a kind of eccentric half-ball valve.
Background technology
Rising in the duct and block the ball valve kind of medium a lot, the closure member that wherein eccentric half-ball valve is is a hemisphere, hemisphere Shape spool rotates around valve body centrage thus reaches to open and close the effect of valve.Eccentric half-ball valve commonly used in the prior art There is following defect: sealing is poor, fluid leakage easily occurs;Wearing no resistance, service life is short;Operate and waste time and energy.
Utility model content
This utility model provides a kind of rational in infrastructure, good airproof performance, use for solving technical problem present in known technology Life-span length, operate light eccentric half-ball valve.
This utility model is adopted the technical scheme that by solving technical problem present in known technology: one eccentric half-ball valve Including valve body, the both sides that valve body is relative offer fluid intake and fluid issuing respectively, and the top of valve body offers installing hole, Being provided with axle sleeve in installing hole, be provided with main valve stem in axle sleeve, the bottom of valve body is provided with auxiliary valve rod, main valve stem and auxiliary valve rod Between be fixedly connected with hemispherical spool, the upper end of main valve stem is provided with valve rod drive mechanism;The surface of described hemispherical spool It is provided with the sealing mounting groove of annular, in sealing mounting groove, is inlaid with antifriction alloy;Be provided with at described fluid intake valve seat and For the pressing plate of fixed valve base, the inner face of valve seat is provided with lip ring, and the material of lip ring is antifriction alloy, The edge of lip ring is provided with elastic seal ring, in described lip ring energy embedding sealing mounting groove;Described valve body with Being provided with packing cavity between axle sleeve, be filled with filler in packing cavity, the upper end of packing cavity is provided with gland, packing cavity It is provided with seal washer between upper limb and gland, is bolted between packing cavity and gland.
Advantage of the present utility model and good effect be: is installed with sealing by lip ring between hemispherical spool and valve seat Groove can realize self-locking and close, and reliable self-locking property guarantees that its sealing is tight;It it is sphere line between hemispherical spool and valve seat Contact, realizes self-locking by bias, and sealing pair contacts hardly in the whole process opened and closed, only just can contact in the moment opened and closed and Lock is tight, it is ensured that all without any leakage point at sound state lower seal;The whole process that eccentric half-ball valve opens and closes, sealing pair The most entirely being in undamped idling conditions, external force is simply opening and closing moment disengaging or is compressing, and operates light the rapidest;Sealing pair Use antifriction alloy, excellent mechanical performance, extend service life.
Preferably: described valve rod drive mechanism is worm-and-wheel gear.
Preferably: in described valve rod drive mechanism, be provided with handwheel.
Preferably: the material of described filler is the one in politef, graphite or asbestos.
Preferably: the material of described elastic seal ring is rubber.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, valve body;2, pressing plate;3, valve seat;4, lip ring;5, hemispherical spool;6, auxiliary valve rod; 7, main valve stem;8, packing cavity;9, filler;10, gland;11, bolt;12, valve rod drive mechanism;13、 Handwheel.
Detailed description of the invention
For summary of the invention of the present utility model, feature and effect can be further appreciated that, hereby enumerate following example and describe in detail such as Under:
Referring to Fig. 1, this utility model includes valve body 1, and the both sides that valve body 1 is relative offer fluid intake and fluid respectively Outlet, the top of valve body 1 offers installing hole, is provided with axle sleeve in installing hole, is provided with main valve stem 7, valve body in axle sleeve The bottom of 1 is provided with auxiliary valve rod 6, is fixedly connected with hemispherical spool 5, main valve stem 7 between main valve stem 7 and auxiliary valve rod 6 Upper end be provided with valve rod drive mechanism 12;The surface configuration of described hemispherical spool 5 has the sealing mounting groove of annular, close It is inlaid with antifriction alloy in envelope mounting groove;Valve seat 3 and the pressing plate 2 for fixed valve base 3 it is provided with at described fluid intake, The inner face of valve seat 3 is provided with lip ring 4, and the material of lip ring 4 is antifriction alloy, lip ring 4 Edge is provided with elastic seal ring, in described lip ring 4 energy embedding sealing mounting groove;Between described valve body 1 and axle sleeve Being provided with packing cavity 8, be filled with filler 9 in packing cavity 8, the upper end of packing cavity 8 is provided with gland 10, packing cavity It is provided with seal washer, by bolt 11 between packing cavity 8 and gland 10 between upper limb and the gland 10 of 8 Fixing.
In the present embodiment, described valve rod drive mechanism 12 is worm-and-wheel gear, and valve rod drive mechanism 12 is provided with handwheel 13。
In the present embodiment, the material of described filler 9 is the one in politef, graphite or asbestos.
In the present embodiment, the material of described elastic seal ring is rubber.
This utility model has the advantage that
One, good seal performance
Sealing pair structure between hemispherical spool 5 and valve seat 3 can realize self-locking and close, and reliable self-locking property guarantees that it is close Obturage tight;Being sphere linear contact lay between hemispherical spool 5 and valve seat 3, realize self-locking by bias, sealing pair is complete open and close Journey contacts hardly, and only the moment in keying just can contact and lock is tight, it is ensured that all without any at sound state lower seal Leakage point.
Two, operate light
The whole process that eccentric half-ball valve opens and closes, sealing pair is in undamped idling conditions the most entirely, and external force is simply opening and closing wink Between depart from or compress, and valve rod only needs half-twist light rapidly, and operation is light certainly.
Three, service life is long
Sealing pair uses bimetal wear resistant alloy, excellent mechanical performance, and (strength weares and teares, it is fast to wash away can to meet different operating mode The media such as speed, seriously corroded) in needs, its anticorrosive and bite-resistant ability is 6 times of rustless steel sealing pair, regulates valve Open and close up to ten thousand times and do not lost efficacy, extend service life.

Claims (5)

1. an eccentric half-ball valve, it is characterised in that: include that valve body (1), the both sides that valve body (1) is relative are offered respectively Fluid intake and fluid issuing, the top of valve body (1) is had to offer installing hole, be provided with axle sleeve in installing hole, in axle sleeve Being provided with main valve stem (7), the bottom of valve body (1) is provided with auxiliary valve rod (6), main valve stem (7) and auxiliary valve rod (6) Between be fixedly connected with hemispherical spool (5), the upper end of main valve stem (7) is provided with valve rod drive mechanism (12);Institute The surface configuration stating hemispherical spool (5) has the sealing mounting groove of annular, is inlaid with antifriction alloy in sealing mounting groove;Institute State and at fluid intake, be provided with valve seat (3) and the pressing plate (2) for fixed valve base (3), the inner face of valve seat (3) Being provided with lip ring (4), the material of lip ring (4) is antifriction alloy, the edge of lip ring (4) It is provided with elastic seal ring, in described lip ring (4) energy embedding sealing mounting groove;Described valve body (1) and axle sleeve Between be provided with packing cavity (8), be filled with filler (9) in packing cavity (8), the upper end of packing cavity (8) is provided with Gland (10), is provided with seal washer, packing cavity (8) between upper limb and the gland (10) of packing cavity (8) And fixed by bolt (11) between gland (10).
2. eccentric half-ball valve as claimed in claim 1, it is characterised in that: described valve rod drive mechanism (12) is worm gear Worm mechanism.
3. eccentric half-ball valve as claimed in claim 1, it is characterised in that: described valve rod drive mechanism (12) is upper to be arranged There is handwheel.
4. eccentric half-ball valve as claimed in claim 1, it is characterised in that: the material of described filler (9) is polytetrafluoroethyl-ne One in alkene, graphite or asbestos.
5. eccentric half-ball valve as claimed in claim 1, it is characterised in that: the material of described elastic seal ring is rubber.
CN201620441683.9U 2016-05-16 2016-05-16 Eccentric half -ball valve Active CN205654904U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620441683.9U CN205654904U (en) 2016-05-16 2016-05-16 Eccentric half -ball valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620441683.9U CN205654904U (en) 2016-05-16 2016-05-16 Eccentric half -ball valve

Publications (1)

Publication Number Publication Date
CN205654904U true CN205654904U (en) 2016-10-19

Family

ID=57402322

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620441683.9U Active CN205654904U (en) 2016-05-16 2016-05-16 Eccentric half -ball valve

Country Status (1)

Country Link
CN (1) CN205654904U (en)

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