CN110332331A - A kind of eccentric full-path ball valve of asymmetric sealing structure - Google Patents
A kind of eccentric full-path ball valve of asymmetric sealing structure Download PDFInfo
- Publication number
- CN110332331A CN110332331A CN201910689110.6A CN201910689110A CN110332331A CN 110332331 A CN110332331 A CN 110332331A CN 201910689110 A CN201910689110 A CN 201910689110A CN 110332331 A CN110332331 A CN 110332331A
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- Prior art keywords
- valve
- sealing structure
- ball valve
- valve body
- ring
- Prior art date
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- Granted
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- 238000007789 sealing Methods 0.000 title claims abstract description 108
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000002184 metal Substances 0.000 claims abstract description 25
- 229920001971 elastomer Polymers 0.000 claims description 25
- 230000033001 locomotion Effects 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 9
- 229920002943 EPDM rubber Polymers 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000007689 inspection Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000008439 repair process Effects 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 15
- 238000000605 extraction Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
- F16K5/0689—Packings between housing and plug
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
Abstract
The invention discloses a kind of eccentric full-path ball valves of asymmetric sealing structure, including valve body, valve, movable differential-pressure type metal hard sealing structure, fixed soft sealing structure, connecting lever and Manual locking device outside valve body, the movable differential-pressure type metal hard sealing structure is arranged at the water inlet end of ball valve, the fixed soft sealing structure is arranged at the water outlet of ball valve, valve shaft center line and valve body centerline parallel deviate certain distance, connecting lever is connected by valve shaft with the intracorporal valve of valve, to drive valve to be rotated, when valve is in standard-sized sheet or full off state, the Manual locking device being set on connecting lever can be arranged on valve body two at lock guide in extracted and put into.Compared with the existing technology, eccentric full-path ball valve of the invention it is structurally and operationally simple, sealing inspection speed is fast, manufacturing cost and use cost is low, leakproofness is strong, and will not influence continuing working for ball valve when on-bne repair.
Description
Technical field
The present invention relates to valve seal field more particularly to a kind of eccentric full-path ball valves of asymmetric sealing structure.
Background technique
In whole-through diameter ball valve, for traditional hand-electric ball valve without bias, valve welds shape using casting or steel plate
Formula, valve form sealing pair (metal to metal seals firmly) by installation valve sealing ring and shift(ing) ring, seal by upstream work
Make sealing pair and downstream maintenance sealing pair two seals pair composition.Two groups of sealing pairs pass through pressure water or pressure oil driving moves
The investment and extraction of rotating ring, the switch of Lai Shixian ball valve have had already appeared above-mentioned with symmetrically arranged removable in the prior art
The ball valve of moment pressure type metal hard sealing structure, such as application No. is CN201820980822.'s and CN200420076986.2
A kind of movable differential-pressure type metal hard sealing structure of double-seal ball valve is just all disclosed in Chinese patent.However, due to removable
The water system or oil system and ball valve of moment pressure type metal hard sealing structure are a relationship for matching one, control mode and structure
All more complicated, manufacturing cost and use cost is also very high, and metal hard-sealing is difficult to zero leakage, when hand-electric device or biography
Dynamic device, sealing structure etc. when something goes wrong, need flower dismantling maintenance for a long time, may not can guarantee ball valve and continue normal work
Make the time, influences the utilization rate of ball valve.
Therefore, be badly in need of design a kind of structure it is simpler, sealing maintenance be easier, the lower all-pass of manufacturing cost and use cost
Diameter ball valve, and can guarantee the leakproofness and operability of valve simultaneously.
Summary of the invention
(1) technical problems to be solved
Based on this, the invention proposes a kind of eccentric full-path ball valve of asymmetric sealing structure, the bias full-bore balls
Valve it is structurally and operationally simple, sealing inspection speed is fast, manufacturing cost and use cost is low, leakproofness is strong, and will not when on-bne repair
Influence continuing working for ball valve.
(2) technical solution
In order to solve the above technical problems, the invention proposes a kind of eccentric full-path ball valve of asymmetric sealing structure, packet
Include valve body, valve, movable differential-pressure type metal hard sealing structure, fixed soft sealing structure, the connecting lever outside valve body and manually
Locking device, the movable differential-pressure type metal hard sealing structure are arranged at the water inlet end of ball valve, the fixed soft seal
Structure setting is at the water outlet of ball valve, and valve shaft center line and valve body centerline parallel deviate certain distance, and connecting lever passes through valve shaft
It is connected with the intracorporal valve of valve, to drive valve to be rotated, when valve is in standard-sized sheet or full off state, is set to connecting lever
On Manual locking device can be arranged on valve body two at lock guide in extracted and put into.
Further, the movable differential-pressure type metal hard sealing structure includes the valve being fixed by screws on valve
Sealing ring, shift(ing) ring for linear motion and the support ring being fixed on valve body, have on valve body and are connected to water system
Intake-outlet, shift(ing) ring is movably placed between valve body and support ring, valve sealing ring compatible with the conical surface of shift(ing) ring and
Support ring, valve body together form the space of holding movable ring, the intake-outlet being provided on the support ring and valve body respectively
It is connected with the space of the holding movable ring.
Further, the fixed soft sealing structure includes the fixing seal seat being fixed on valve body, is fixed on work
Rubber seal on door can be fitted close between the fixing seal seat and rubber seal, form a pair of of working seal
It is secondary.
Further, the fixed soft sealing structure further includes pressing ring, and the rubber seal passes through underlying
Pressing ring and screw are fixed in the groove on valve, and the rubber seal can adjust decrement by the pressing ring, to protect
Demonstrate,prove zero leakage.
Further, parallel offset moves certain distance, shape in vertical direction for the valve shaft center line and valve body center line
At the eccentricity in a vertical direction.
Further, the length of the eccentricity is 1-10mm.
Further, the fixing seal seat material is stainless steel material, the material of rubber seal be NBR or
EPDM。
Further, the Manual locking device includes handwheel, the screw rod connecting with handwheel, locking nut, bolt, gear
Block, cover board and the locking pin being set in the fixing seat on connecting lever, the cover board are bolted on one in fixing seat
End, cover board be equipped with threaded hole, the threaded hole and screw rod cooperation constitute feed screw nut's structure, when valve be in standard-sized sheet or
When person's full off state, the locking pin can be arranged on valve body two at lock guide in extracted and put into, the lock
Cooperated between rationed marketing and locking guide using cone structure.
Further, the Manual locking device further includes block, and the block passes through the tail portion of external screw thread and locking pin
The internal screw thread of the groove opened up carries out the connection that is screwed, and the end of the screw rod is truncated cone-shaped structure, and block is for limiting institute
It states truncated cone-shaped structure to move in a straight line, the truncated cone-shaped structure can be freely rotated in the groove of the tail portion of locking pin.
Further, the Manual locking device further includes locating rod and positioning stem nut, and the locating rod passes through positioning
Stem nut is fixed in fixing seat, and the side of the locking pin is equipped with the limiting slot matched with one end of the locating rod, institute
The movement of horizontal direction can only be carried out by stating limiting slot limitation locating rod.
(3) beneficial effect
The present invention is compared with the prior art, the beneficial effect comprise that
1, the eccentric full-path ball valve of asymmetric sealing structure of the invention is by two movable differential-pressure type metal hard-sealings
Working seal structure in structure (ball valve influent side maintenance sealing structure and ball valve water outlet side working seal structure) is changed to fix
Formula soft sealing structure so that fixed soft sealing structure as be located at downstream common working seal, thus work normally feelings
Without using the metal hard sealing structure of linear movement under condition, fixed soft sealing structure is not necessarily to hydraulic pressure or oil pressure actuated, simplifies
Water system or oil system, and water system control cabinet or oil system control cabinet need not match one with ball valve one can be used as mobile special
With tool, only needs the connection of on-bne repair Shi Caiyu ball valve to use in ball valve, reduce manufacturing cost, simplify control mode.
In addition, in maintenance, it is only necessary to which the inspection of sealing structure can be completed in the rubber seal of the fixed soft sealing structure of quick-replaceable
It repairs, inspection operation is simple.
2, the whole-through diameter ball valve of asymmetric sealing structure of the invention is made by cooperation eccentric structure and Manual locking device
Obtaining eccentric connecting lever can guarantee that valve is in standard-sized sheet or closed positions, increase the torque of switch, and increases bias and can guarantee work
Door sealing circle can be rapidly separated with rubber seal.
3, the screw rod in the Manual locking device on connecting lever is by the engaging of block and with the relative rotation of cover board come before
After push locking pin, locking pin and locking guide use cone match, nut and locating rod are locked, so that locking pin
It can be in the extraction and investment for locking accurate stable in guide at two up and down of corresponding valve wide open closed positions, it is ensured that valve is complete
It is accurate with closed positions to open, and the limiting slot of cone match and locking pin side can make whether staff's feedback knows locking pin
Investment is in place.
Detailed description of the invention
The features and advantages of the present invention will be more clearly understood by referring to the accompanying drawings, and attached drawing is schematically without that should manage
Solution is carries out any restrictions to the present invention, in the accompanying drawings:
Fig. 1 is the side view of the eccentric full-path ball valve of asymmetric sealing structure of the invention；
Fig. 2 is the partial enlargement diagram in Fig. 1 at I；
Fig. 3 is the partial enlargement diagram of the movable differential-pressure type metal hard sealing structure of maintenance in Fig. 1；
Fig. 4 be Fig. 1 in C-C to armstrong's patent locking pin extraction status diagram；
Fig. 5 be Fig. 1 in C-C to armstrong's patent locking pin investment status diagram.
Description of symbols:
1, valve body, 2, valve, 3, pressing ring, 4, rubber seal, 5, fixing seal seat, 6, valve sealing ring, 7, shift(ing) ring,
8, support ring, 9, connecting lever, 10, locking pin, 11, handwheel, 12, locking guide, 13, screw rod, 14, locking nut, 15, bolt, 16,
Cover board, 17, block, 18, locating rod, 19, positioning stem nut.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.Many details are explained in the following description in order to fully understand this hair
It is bright.But the invention can be embodied in many other ways as described herein, those skilled in the art can be not
Similar improvement is done in the case where violating intension of the present invention, therefore the present invention is not limited to the specific embodiments disclosed below.
As shown in Figs. 1-5, the invention discloses a kind of eccentric full-path ball valve of asymmetric sealing structure, including bias are complete
It the valve body 1 of latus rectum ball valve, valve 2, movable differential-pressure type metal hard sealing structure, fixed soft sealing structure, connecting lever 9 and turns
Manual locking device on arm, movable differential-pressure type metal hard sealing structure are arranged at water inlet end, fixed soft sealing structure
It is arranged at water outlet, by the way that fixed soft sealing structure to be arranged at the water outlet in downstream, so that fixed soft seal knot
Structure is as common working seal, to fix in normal operating conditions without using the metal hard sealing structure of linear movement
Formula soft sealing structure is not necessarily to hydraulic pressure or oil pressure actuated, simplifies operation control system, and water system control cabinet or oil system control
Cabinet need not match one with ball valve one, can be used as mobile specific purpose tool, only need the connection of on-bne repair Shi Caiyu ball valve to make in ball valve
With while guaranteeing that valve has on-line maintenance, reducing manufacturing cost, simplify control mode.In addition, overhauling
When, it is only necessary to the maintenance of sealing structure, inspection operation can be completed in the rubber seal of the fixed soft sealing structure of quick-replaceable
Simply.
In addition, the connecting lever 9 outside valve body 1 is connected by valve shaft with the valve 2 in valve body 1, to drive valve 2 in 90 ° of models
Interior rotation is enclosed, to achieve the purpose that truncation or connection medium, one spacing of disalignment of valve shaft center line and valve body 1
From so that an eccentric full-path ball valve is constituted, so that the easy switch of asymmetric sealing structure ball valve of the invention, passes through
Pressing ring compares the decrement of sealing ring and guarantees zero leakage to adjust, and with final realization seals zero leakage, the bias of eccentric valve shaft
Size away from the protrusion part with the rubber seal 4 of fixed soft sealing structure corresponds to each other, since ball valve of the invention is past
Toward the medium-and-large-sized hand-electric ball valve for being ball valve etc, ball valve ruler is generally 300~3000mm, therefore eccentricity is preferably 1-10mm,
Guarantee that fixing seal seat 5 and rubber seal 4 carry out fast sealing and disengaging.Preferably, as shown in Figure 1, connecting with 9 one end of connecting lever
The valve shaft connect can specifically deviate with the center line of valve body 1 up and down, the eccentricity of a vertical direction be formed, consequently facilitating operator
Member carries out manual or electronic valve opening control in vertical direction.
As shown in Fig. 2, fixed soft sealing structure includes the fixing seal seat 5 being fixed on valve body 1, is fixed on valve
Rubber seal 4 and pressing ring 3 on 2, rubber seal 4 are fixed on recessed on valve 2 by underlying pressing ring 3 and screw
In slot, rubber seal can guarantee zero leakage, finally make fixing seal seat 5 and rubber by 3 micro-adjustment decrement of pressing ring
It can be fitted close between sealing ring 4, to form a hermetic water-proof structure, to prevent medium from valve seat and valve body gap
Leakage, it is preferred that 5 material of fixing seal seat is stainless steel material, and the sealing ring material of rubber seal 4 is NBR, EPDM etc.,
It can be selected according to use condition.
As shown in figure 3, the movable differential-pressure type metal hard sealing structure as the prior art includes being fixed by screw
Support ring 8 on the valve sealing ring 6 on valve 2, shift(ing) ring 7 and valve body 1 for linear motion, is provided with connection on valve body
To the intake-outlet of water system, the interface of intake-outlet is respectively to extract chamber and investment chamber, shift(ing) ring 7 be movably placed in right valve barrel and
Between support ring 8, valve sealing ring 6 compatible with the conical surface of shift(ing) ring 7 and support ring 8, right valve barrel together form placement
The space of shift(ing) ring 7 is provided with the space of the intake-outlet and the holding movable ring 7 on the support ring 8 and right valve barrel respectively
It is connected, the pressure oil of the pressure water of water system or oil system is led to the both ends of shift(ing) ring 7 by the high pressure aqueduct on valve body 1,
By controlling pressure water/oil water inlet direction at 7 both ends of shift(ing) ring, so that the movement of movable differential-pressure type metal hard sealing structure
Ring 7 is for linear motion in valve body.When investment chamber water inlet/oil of right end, pressure water/oil pushes shift(ing) ring 7 to valve center
Movement contacted with the valve sealing ring 6 on sphere valve, be adjacent to and formed sealing surface, at this time the extraction chamber of left end as drain/
Hydraulic fluid port releases discharged water/oil, conversely, pressure water/oil pushes shift(ing) ring 7 to valve when extraction chamber water inlet/oil of left end
The opposite direction in center is mobile, and is detached from the valve sealing ring 6 on sphere valve, and there are the gaps of corresponding size, guarantees to turn
Arm 9 drives valve 2 to be rotated in valve body 1, and the investment chamber of right end releases discharged water/oil as draining/hydraulic fluid port at this time.
It is worth noting that, movable differential-pressure type metal hard sealing structure of the invention is only being overhauled as maintenance sealing structure
When devote oneself to work, therefore the hydraulic-pressure control apparatus of shift(ing) ring is individually equipped under general normal operation without every billiard ball valve.
If the C-C in Fig. 4-5 is to shown in side view, in order to enable the work of the eccentric full-path ball valve of asymmetric sealing structure
Door position is accurate, and the present invention is also provided with Manual locking device in one end of connecting lever 9, specifically, Manual locking device includes
Handwheel 11, the screw rod 13 being connect with handwheel, locking nut 14, bolt 15, block 17, locating rod 18, positioning stem nut 19, cover board
16 and the locking pin 10 that is set in the fixing seat on connecting lever, the locking pin 10 can at two on valve body 1 locking pin
(merely illustrate at one in Fig. 1 locking guide 12) is extracted and is put into set 12, at one above locking guide 12 to taking on service jobs
The position of door standard-sized sheet, in addition at one below locking guide 12 correspondence valve close entirely and fixed soft sealing structure is sealed
Position, to guarantee the sealing effect of fixed soft sealing structure when valve shutdown, so that fixing seal seat 5 and rubber seal
It is further fitted closely between 4, guarantees personnel safety when maintenance replacement rubber seal 4, and guarantee valve in standard-sized sheet
Open position.
Further, the end of screw rod 13 is truncated cone-shaped structure, and 10 tail portion of locking pin is equipped with threaded groove, block
It is connect by external screw thread with the internal screw thread of 12 retaining groove of locking pin, block 17 is used to engage the truncated cone-shaped structure of 13 end of screw rod
It moves in a straight line, to limit the truncated cone-shaped structure that 13 end of screw rod is protruded in the groove of 10 tail portion of locking pin, and also
There are certain minim gaps, and the truncated cone-shaped structure of the screw rod 13 is freely rotated in the groove of 10 tail portion of locking pin,
So that the screw rod 13 drives the truncated cone-shaped structure of its end to be moved forward and backward by hand wheel rotating, it is final to push locking pin 12
The movement in horizontal linear direction is carried out, in addition, cover board 16 is fixedly mounted in fixing seat hollow on connecting lever by bolt 15, and
The center of cover board 16 is equipped with being threadedly engaged on threaded hole, with screw rod 13, feed screw nut's structure is collectively formed, to make
It obtains when screw rod 13 rotates and is moved forward and backward relative to fixed cover board 16, it is also possible to provide locking nut 14, locking nut 14
Center also be provided with threaded hole, so that feed screw nut's structure of two-restriction is constituted together with the threaded hole of cover board 16, specifically, locking
When rationed marketing 10 is put into and extracted, in place and after extraction in place, locking nut 14 and cover board 16 are twisted in investment for locking pin 10
Together, the position of locking pin 10 can be lockked.In short, handwheel 11 and screw rod that the Manual locking device on connecting lever 9 passes through rotation
13 promotion locking pins 10 move forward and backward, screw rod 13 by block 17 to the engaging of its end and with the relative rotation of cover board 16 come
Front and back drives locking pin 10, and locking pin 10 is finally enabled to lock guide at two up and down in corresponding valve wide open closed positions
The extraction and investment of accurate stable in 12.
In addition, as shown in figure 4, being provided with and 18 phase of locating rod that is fixed in fixing seat on the upside top of locking pin 10
The limiting slot of cooperation, locating rod 18 are fixed in fixing seat by positioning stem nut 19, the limiting slot opened up on the upside of locking pin 10
Limitation locating rod can only carry out moving forward and backward for horizontal direction, so that locking pin 10 not can be carried out axial rotation, and limit
Position slot both ends can be engaged with the locating rod 18 in fixing seat, thus be further ensured that locking pin 10 accurately move into and
Locking guide 12 is removed, and staff's feedback is made to know whether handwheel has rotated to extreme position.In addition, locking pin 10 with
Conical surface seal can be preferentially used between locking guide 12, can guarantee the accuracy of latched position.
When hand gear, electric device or the transmission device in ball valve go wrong, when needing to disassemble maintenance, by setting
Standard-sized sheet, full pass armstrong's patent locking device are set, so that valve is in standard-sized sheet or full off state can in the case where pipeline has water
The maintenance of safe ready.The investment of operated by handwheel locking pin is extracted, convenient and strength-saving.Taper pin connection guarantees the accurate nothing of latched position
Accidentally.
It is noted why the eccentric full-path ball valve of asymmetric sealing structure of the invention is without using left and right
The fixed soft sealing structure of symmetrical low cost is because at valve intake-outlet both ends all using fixed soft sealing structure
In the case of, two sides use fixed soft sealing structure simultaneously, and twice soft sealing structure will be sealed simultaneously or be overhauled simultaneously, can not
Meet the requirement of a job, a maintenance.
It is compared with the prior art, the beneficial effect comprise that
1, the eccentric full-path ball valve of asymmetric sealing structure of the invention is by two movable differential-pressure type metal hard-sealings
Working seal structure in structure (ball valve influent side maintenance sealing structure and ball valve water outlet side working seal structure) is changed to fix
Formula soft sealing structure so that fixed soft sealing structure as be located at downstream common working seal, thus work normally feelings
Without using the metal hard sealing structure of linear movement under condition, fixed soft sealing structure is not necessarily to hydraulic pressure or oil pressure actuated, simplifies
Water system or oil system, and water system control cabinet or oil system control cabinet need not match one with ball valve one can be used as mobile special
With tool, only needs the connection of on-bne repair Shi Caiyu ball valve to use in ball valve, reduce manufacturing cost, simplify control mode.
In addition, in maintenance, it is only necessary to which the inspection of sealing structure can be completed in the rubber seal of the fixed soft sealing structure of quick-replaceable
It repairs, inspection operation is simple.
2, the whole-through diameter ball valve of asymmetric sealing structure of the invention is made by cooperation eccentric structure and Manual locking device
Obtaining eccentric connecting lever can guarantee that valve is in standard-sized sheet or closed positions, increase the torque of switch, and increases bias and can guarantee work
Door sealing circle can be rapidly separated with rubber seal.
3, engaging of the screw rod in the Manual locking device on connecting lever by block and the relative rotation between cover board
Come front and back and push locking pin, locking pin and locking guide use cone match, lock nut and locating rod, so that lock
Rationed marketing can be in the extraction and investment for locking accurate stable in guide at two up and down of corresponding valve wide open closed positions, it is ensured that valve
Door standard-sized sheet and closed positions are accurate, and can also make work people by the cooperation of setting cone structure and the limiting slot of locking pin side
Member's feedback knows whether locking pin puts into place.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.
Although the embodiments of the invention are described in conjunction with the attached drawings, but those skilled in the art can not depart from this hair
Various modifications and variations are made in the case where bright spirit and scope, such modifications and variations are each fallen within by appended claims
Within limited range.
Claims (10)
1. a kind of eccentric full-path ball valve of asymmetric sealing structure, which is characterized in that including valve body, valve, removable differential pressure
Formula metal hard sealing structure, fixed soft sealing structure, connecting lever and Manual locking device outside valve body, the removable differential pressure
Formula metal hard sealing structure is arranged at the water inlet end of ball valve, and the water outlet of ball valve is arranged in the fixed soft sealing structure
Place, valve shaft center line and valve body centerline parallel deviate certain distance, and connecting lever is connected by valve shaft with the intracorporal valve of valve, with band
Dynamic valve is rotated, and when valve is in standard-sized sheet or full off state, the Manual locking device being set on connecting lever can divide
It is locked at two not be arranged on valve body and is extracted and put into guide.
2. the eccentric full-path ball valve of asymmetric sealing structure as described in claim 1, which is characterized in that the removable differential pressure
Formula metal hard sealing structure includes the valve sealing ring, shift(ing) ring for linear motion and fixation being fixed by screws on valve
Support ring on valve body, has an intake-outlet for being connected to water system on valve body, shift(ing) ring be movably placed in valve body and
Between support ring, valve sealing ring compatible with the conical surface of shift(ing) ring and support ring, valve body together form holding movable ring
Space, the intake-outlet being provided on the support ring and valve body respectively is connected with the space of the holding movable ring.
3. the eccentric full-path ball valve of asymmetric sealing structure as described in claim 1, which is characterized in that described fixed soft close
Seal structure includes the fixing seal seat being fixed on valve body, the rubber seal being fixed on valve, the fixing seal seat
It can be fitted close between rubber seal, form a pair of of working seal pair.
4. the eccentric full-path ball valve of asymmetric sealing structure as claimed in claim 3, which is characterized in that described fixed soft close
Seal structure further includes pressing ring, and the rubber seal is fixed in the groove on valve by underlying pressing ring and screw,
The rubber seal can adjust decrement by the pressing ring, to guarantee zero leakage.
5. the eccentric full-path ball valve of asymmetric sealing structure as described in claim 1, which is characterized in that the valve shaft center line
Parallel offset moves certain distance in vertical direction with valve body center line, forms the eccentricity in a vertical direction.
6. the eccentric full-path ball valve of asymmetric sealing structure as claimed in claim 5, which is characterized in that the length of the eccentricity
Degree is 1-10mm.
7. the eccentric full-path ball valve of asymmetric sealing structure as claimed in claim 3, which is characterized in that the fixing seal seat
Material is stainless steel material, and the material of rubber seal is NBR or EPDM.
8. the eccentric full-path ball valve of asymmetric sealing structure as described in claim 1, which is characterized in that the manual lock ingot dress
It sets including in handwheel, the screw rod being connect with handwheel, locking nut, bolt, block, cover board and the fixing seat that is set on connecting lever
Locking pin, the cover board is bolted on one end in fixing seat, and cover board is equipped with threaded hole, the threaded hole and silk
Bar cooperation constitutes feed screw nut's structure, and when valve is in standard-sized sheet or full off state, the locking pin can be in valve body
It is locked at the two of upper setting and is extracted and put into guide, matched between the locking pin and locking guide using cone structure
It closes.
9. the eccentric full-path ball valve of asymmetric sealing structure as claimed in claim 8, which is characterized in that the manual lock ingot dress
Setting further includes block, and the internal screw thread for the groove that the block is opened up by the tail portion of external screw thread and locking pin carries out the company of being screwed
It connects, the end of the screw rod is truncated cone-shaped structure, and block is moved in a straight line for limiting the truncated cone-shaped structure, the truncated cone-shaped
Structure can be freely rotated in the groove of the tail portion of locking pin.
10. the eccentric full-path ball valve of asymmetric sealing structure as claimed in claim 8, which is characterized in that the manual lock ingot
Device further includes locating rod and positioning stem nut, and the locating rod is fixed in fixing seat by positioning stem nut, the locking
The side of pin is equipped with the limiting slot matched with one end of the locating rod, and the limiting slot limitation locating rod can only carry out level
The movement in direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910689110.6A CN110332331B (en) | 2019-07-29 | 2019-07-29 | Eccentric full-bore ball valve with asymmetric sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910689110.6A CN110332331B (en) | 2019-07-29 | 2019-07-29 | Eccentric full-bore ball valve with asymmetric sealing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110332331A true CN110332331A (en) | 2019-10-15 |
| CN110332331B CN110332331B (en) | 2024-04-26 |
Family
ID=68147765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910689110.6A Active CN110332331B (en) | 2019-07-29 | 2019-07-29 | Eccentric full-bore ball valve with asymmetric sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110332331B (en) |
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| DE3819300C1 (en) * | 1988-06-03 | 1989-12-14 | Hermann Von Rautenkranz, Internationale Tiefbohr Gmbh & Co Kg, Itag, 3100 Celle, De | Method for testing the leak-tightness of sealing elements in shut-off fittings and a device for carrying out the method |
| JP2000356272A (en) * | 1999-06-15 | 2000-12-26 | Kubota Corp | Seat structure for ball valve |
| KR200334648Y1 (en) * | 2003-08-21 | 2003-11-28 | 서광공업 주식회사 | Segment plug type double eccentric metal seat ball valve |
| JP2007232020A (en) * | 2006-02-28 | 2007-09-13 | Kitz Corp | Ball valve |
| CN201554893U (en) * | 2009-11-27 | 2010-08-18 | 重庆白市驿锻制阀门研究所 | Four valve seat sealing ball valve |
| CN202469052U (en) * | 2011-11-03 | 2012-10-03 | 湖北洪城通用机械股份有限公司 | Double-eccentric bidirectional and bimetallic hard sealing ball valve |
| CN202646759U (en) * | 2012-06-29 | 2013-01-02 | 郑州市郑蝶阀门有限公司 | High water head full bore pump station ball valve |
| CN103363144A (en) * | 2012-03-26 | 2013-10-23 | 胡侃 | Top entry full-bore eccentric half ball valve with no independent valve seat |
| CN204828905U (en) * | 2015-08-05 | 2015-12-02 | 中阀科技(长沙)阀门有限公司 | Hydraulic turbine is intake ball valve and is overhauld sealed manual mechanical lock spindle structure |
| CN106763869A (en) * | 2017-01-12 | 2017-05-31 | 胜利阀门有限公司 | A kind of Full-diameter eccentric hemisphere valve |
| CN207486098U (en) * | 2017-10-02 | 2018-06-12 | 新昌县大市聚镇树韩网络工作室 | A kind of pretightening sealing ball valve device |
| CN210265979U (en) * | 2019-07-29 | 2020-04-07 | 中阀科技(长沙)阀门有限公司 | Eccentric full-bore ball valve with asymmetric sealing structure |
-
2019
- 2019-07-29 CN CN201910689110.6A patent/CN110332331B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3819300C1 (en) * | 1988-06-03 | 1989-12-14 | Hermann Von Rautenkranz, Internationale Tiefbohr Gmbh & Co Kg, Itag, 3100 Celle, De | Method for testing the leak-tightness of sealing elements in shut-off fittings and a device for carrying out the method |
| JP2000356272A (en) * | 1999-06-15 | 2000-12-26 | Kubota Corp | Seat structure for ball valve |
| KR200334648Y1 (en) * | 2003-08-21 | 2003-11-28 | 서광공업 주식회사 | Segment plug type double eccentric metal seat ball valve |
| JP2007232020A (en) * | 2006-02-28 | 2007-09-13 | Kitz Corp | Ball valve |
| CN201554893U (en) * | 2009-11-27 | 2010-08-18 | 重庆白市驿锻制阀门研究所 | Four valve seat sealing ball valve |
| CN202469052U (en) * | 2011-11-03 | 2012-10-03 | 湖北洪城通用机械股份有限公司 | Double-eccentric bidirectional and bimetallic hard sealing ball valve |
| CN103363144A (en) * | 2012-03-26 | 2013-10-23 | 胡侃 | Top entry full-bore eccentric half ball valve with no independent valve seat |
| CN202646759U (en) * | 2012-06-29 | 2013-01-02 | 郑州市郑蝶阀门有限公司 | High water head full bore pump station ball valve |
| CN204828905U (en) * | 2015-08-05 | 2015-12-02 | 中阀科技(长沙)阀门有限公司 | Hydraulic turbine is intake ball valve and is overhauld sealed manual mechanical lock spindle structure |
| CN106763869A (en) * | 2017-01-12 | 2017-05-31 | 胜利阀门有限公司 | A kind of Full-diameter eccentric hemisphere valve |
| CN207486098U (en) * | 2017-10-02 | 2018-06-12 | 新昌县大市聚镇树韩网络工作室 | A kind of pretightening sealing ball valve device |
| CN210265979U (en) * | 2019-07-29 | 2020-04-07 | 中阀科技(长沙)阀门有限公司 | Eccentric full-bore ball valve with asymmetric sealing structure |
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| CN110332331B (en) | 2024-04-26 |
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