CN107725820B - No leakage Solenoid ball valve - Google Patents
No leakage Solenoid ball valve Download PDFInfo
- Publication number
- CN107725820B CN107725820B CN201710968495.0A CN201710968495A CN107725820B CN 107725820 B CN107725820 B CN 107725820B CN 201710968495 A CN201710968495 A CN 201710968495A CN 107725820 B CN107725820 B CN 107725820B
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- Prior art keywords
- valve
- port
- spool
- hole
- hydraulic fluid
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
- F16K11/044—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with movable valve members positioned between valve seats
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
- F16K1/38—Valve members of conical shape
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0603—Multiple-way valves
- F16K31/0624—Lift valves
- F16K31/0627—Lift valves with movable valve member positioned between seats
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The present invention relates to a kind of No leakage Solenoid ball valves, it is characterised in that: including the valve body with inner passage, is provided on valve body and the first hydraulic fluid port, pressure oil port and oil return opening；Valve pocket with inner hole, is mounted on the inner passage of valve body, and the peripheral wall of valve pocket is equipped with the through-flow control hole to be connected to inner hole and the first hydraulic fluid port；The first valve seat with inner hole, is mounted on the left side of valve pocket, and the right side of the first valve seat has the first valve port to be connected to valve pocket inner hole and the hole T；The second valve seat with inner hole, is mounted on the right side of valve pocket, and the left side of the first valve seat has the second valve port to be connected to valve pocket inner hole and the hole P；Spool is connected with guide cylinder, first conical surface, second conical surface and sealing convex shoulder in turn from left to right, seals and forms liquid sealing between the periphery wall of convex shoulder and the inner hole of valve pocket, and the width of sliding sleeve is greater than the aperture of through-flow control hole.It is a kind of Solenoid ball valve simple and reasonable, that operating position and the equal No leakage of crossover position that commutates can be achieved.
Description
Technical field
The present invention relates to a kind of Solenoid ball valve, a kind of especially No leakage Solenoid ball valve.
Background technique
Control valve class is one of main prototype part of hydraulic system, and wherein Solenoid ball valve is one kind of control valve class.Electromagnetic ball
Valve is exactly that spool is spherical solenoid electric valve, it is in addition to having all features of solenoid valve, and there are also its exclusive some characteristics.Its
Using the ball-type solenoid directional control valve that the thrust of electromagnet pushes steel ball to realize oil circuit on-off as driving force, it is suitable for various mineral
Oil is the hydraulic system of working media, to realize the pilot control of No leakage.It, can also when meeting flow-drooping characteristic requirement
Direction controlling as other executing agencies.
Such as the Chinese utility model patent that an Authorization Notice No. is CN202048222U, entitled " direct-push type electromagnetic ball valve "
The Solenoid ball valve for disclosing such a two-position three way, when electromagnet no power, steel ball is directly pressed in T mouthfuls of end valves by spring
On seat, P mouthfuls and A mouthfuls conductings, cut-off and No leakage between A mouthfuls and T mouthfuls；When the solenoid is energized, electromagnet overcomes spring force will
Steel ball is shifted on P mouthfuls of end valve seats, and A mouthfuls and T mouthful communicate, the hole the P and hole A is ended and No leakage.Although foregoing invention is able to achieve two
The No leakage of operating position, but be detached from T mouthfuls of end valve seats in crossover position, that is, steel ball or be detached from P mouthfuls of end valve seats, it is in T mouthfuls
Between end valve seat and P mouthfuls of end valve seats, when any one end valve seat contact seal of getting along well, P mouthfuls at this time, A mouthfuls and T mouthfuls are communicated, and P mouthfuls
Oil liquid can directly flow back to T mouthfuls, be the purpose that No leakage cannot be achieved at this time, this is requiring the stringent application to be leakage
Do not allow.
How to design and a can guarantee that dead-tight Solenoid ball valve is art technology even if transitional intermediate positions
Personnel need the technical problem solved.
Summary of the invention
The technical problem to be solved by the present invention is to provided for above-mentioned state of the art it is a kind of it is simple and reasonable,
The Solenoid ball valve of operating position and the equal No leakage of crossover position that commutates can be achieved.
The technical scheme of the invention to solve the technical problem is: a kind of No leakage Solenoid ball valve, feature exist
In:
Including the valve body with inner passage, be provided on valve body the first hydraulic fluid port communicated with inner passage, pressure oil port and
Oil return opening；Blind nut is mounted on the inner passage right part of valve body to block the right output port of inner passage；Valve with inner hole
Set, is mounted on the inner passage of valve body, and the peripheral wall of valve pocket is equipped with the through-flow control to be connected to the inner hole and the first hydraulic fluid port of valve pocket
Drilling；The first valve seat with inner hole, is mounted on the left side of valve pocket, the right side of the first valve seat have to be connected to valve pocket inner hole and
First valve port in the hole T；The second valve seat with inner hole, is mounted on the right side of valve pocket, and the left side of the first valve seat has to be connected to
Second valve port of valve pocket inner hole and the hole P；Spool is connected with guide cylinder, first conical surface, second conical surface and close in turn from left to right
Convex shoulder is sealed, forms liquid sealing between the periphery wall of the sealing convex shoulder and the inner hole of valve pocket, seals the width of convex shoulder greater than through-flow
The aperture of control hole；It moves to left to first conical surface thereon in spool by under the complete impaction state of the first valve port, the sealing convex shoulder
On the left of through-flow control hole, the first hydraulic fluid port and oil return opening are blocked, meanwhile, the first hydraulic fluid port passes through through-flow control hole, the second valve port
It is connected to afterwards with pressure oil port；The sealing by under the complete impaction state of the second valve port is moved to right to second conical surface thereon in spool
Convex shoulder is located on the right side of through-flow control hole, and the first hydraulic fluid port is connected to the return port after passing through through-flow control hole, the first valve port, meanwhile, the
One hydraulic fluid port and pressure oil port block；Under the centrally located state of spool, the sealing convex shoulder hides through-flow control hole completely
Lid, first hydraulic fluid port are blocked with oil return opening and pressure oil port simultaneously；Spool driving structure, to drive spool to move left and right.
Preferably, above-mentioned spool driving structure includes mandril, the inner passage set on valve body and the right side positioned at spool,
The left end of mandril is pushed up after the second valve port and is held in spool right end face, and the right end of mandril is equipped with spring, which acts on
The trend that mandril makes mandril that a left side be kept to push away spool；Electromagnet is to push spool to move to right.When electromagnet must not be electric, spring passes through top
Spool is shifted onto the first valve port position of valve body by bar；Push spool to overcome the compressing force of spring when electromagnet obtains electric, by spool to
Right promotion.This driving structure is rationally distributed.
It is constrained to be formed to spool, it is ensured that smoothly left and right slides spool, is equipped in the inner passage of above-mentioned valve body
Positioning sleeve is equipped with sealing element between the inner wall of the inner passage of the periphery and valve body of positioning sleeve, positioning sleeve is located at electromagnet and the
Between one valve seat, the guide cylinder of the spool is located in the inner hole of positioning sleeve, and the inner hole of the periphery of spool and positioning sleeve it
Between be equipped with sealing element.
As an improvement, the electromagnet is threadedly connected to valve body left end, mandril, the right end and valve of mandril are equipped in electromagnet
The left end of core matches.
The valve body is equipped with connection runner, and the hole P is connected to by the connection runner with the left end of spool, in this way can be with balanced valve
The stress of core left and right ends reduces the design power of electromagnet.
Compared with the prior art, the advantages of the present invention are as follows: spool be equipped with guide cylinder, first conical surface, second conical surface and
Convex shoulder is sealed, seals and forms liquid sealing between the periphery wall of convex shoulder and the inner hole of valve pocket, the width for sealing convex shoulder is greater than through-flow control
The aperture of drilling；The first valve port is compressed into shape completely when spool driving structure driving spool is moved to left to first conical surface thereon in this way
Under state, the first hydraulic fluid port and oil return opening are blocked, meanwhile, the first hydraulic fluid port after through-flow control hole, the second valve port with pressure oil port by connecting
It is logical；When spool driving structure driving spool is moved to right under the complete impaction state of the second valve port to second conical surface thereon, the
One hydraulic fluid port is connected to the return port after passing through through-flow control hole, the first valve port, meanwhile, the first hydraulic fluid port and pressure oil port block；In valve
Under the centrally located state of core, sealing convex shoulder through-flow control hole is completely covered by, the first hydraulic fluid port simultaneously with oil return opening and pressure
Hydraulic fluid port blocks；So this Solenoid ball valve by the improvement to spool, can guarantee in operating position and commutation crossover position all without letting out
Leakage.
Detailed description of the invention
Fig. 1 is the structure sectional view of the embodiment of the present invention；
Fig. 2 is the partial enlarged view of Fig. 1；
Fig. 3 is position view of the spool under crossover position state in the embodiment of the present invention；
Fig. 4 is the application principle schematic diagram of the embodiment of the present invention.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
It as shown in figures 1-4, is a preferred embodiment of the present invention.
A kind of No leakage Solenoid ball valve, including
Valve body 1 with inner passage is provided with the first hydraulic fluid port A, the pressure oil P communicated with inner passage on valve body 1 and returns
Hydraulic fluid port T.
Blind nut 2 is threaded in the inner passage right part of valve body 1 to block the right output port of inner passage；
Valve pocket 3 with inner hole, is mounted on the inner passage of valve body 1, and the peripheral wall of valve pocket 3 is equipped with to be connected to valve pocket 3
Inner hole and the first hydraulic fluid port A through-flow control hole 31, through-flow control hole 31 has multiple circumferentially equal portions.
The first valve seat 7 with inner hole, is mounted on the left side of valve pocket 3, and the right side of the first valve seat 7 has to be connected to valve pocket
First valve port 71 of 3 inner holes and the hole T；The second valve seat 8 with inner hole is mounted on the right side of valve pocket 3, the left side of the second valve seat 8
With the second valve port 81 to be connected to 3 inner hole of valve pocket and the hole P.
Spool 5 is connected with guide cylinder 51, first conical surface 52, second conical surface 53 and sealing convex shoulder 54 in turn from left to right,
It seals and forms liquid sealing between the periphery wall of convex shoulder 54 and the inner hole of valve pocket 3, the width D of sealing convex shoulder 54 is greater than through-flow control hole
31 aperture
It moves to left to first conical surface 52 thereon in spool 5 by under the complete impaction state of the first valve port 71, the sealing convex shoulder
54 are located at 31 left side of through-flow control hole, and the first hydraulic fluid port A and oil return inlet T block, meanwhile, the first hydraulic fluid port A by through-flow control hole 31,
It is connected to after second valve port 81 with pressure oil port P.
It moves to right to second conical surface 53 thereon in spool 5 by under the complete impaction state of the second valve port 81, the sealing convex shoulder
54 are located at through-flow 31 right side of control hole, and the first hydraulic fluid port A after through-flow control hole 31, the first valve port 71 with oil return inlet T by being connected to, together
When, the first hydraulic fluid port A and pressure oil port P are blocked.
Under the centrally located state of spool 5, through-flow control hole 31 is completely covered by by the sealing convex shoulder 54, and described
One hydraulic fluid port A is blocked with oil return inlet T and pressure oil port P simultaneously；
Spool driving structure, to drive core assembly 5 to move left and right.Spool driving structure includes:
The left end on mandril 6, the inner passage set on valve body 1 and the right side positioned at spool 5, mandril 6 passes through the second valve port 81
Top is held in 5 right end face of spool afterwards, and the right end of mandril 6 is equipped with spring 4, which, which acts on mandril 6, makes mandril 6 keep left
Push away the trend of spool 5.
Electromagnet 10 is to push spool 5 to move to right.
Positioning sleeve 9 is installed in the inner passage of valve body 1, the inner wall of the inner passage of the periphery and valve body 1 of positioning sleeve 9 it
Between be equipped with sealing element, positioning sleeve 9 is located between electromagnet 10 and the first valve seat 7, and the guide cylinder 51 of spool 5 is located at positioning sleeve 9
Inner hole in, and between the periphery of spool 5 and the inner hole of positioning sleeve 9 be equipped with sealing element.
Electromagnet 10 is threadedly connected to 1 left end of valve body, and mandril 101, the right end and spool 5 of mandril 101 are equipped in electromagnet 1
Left end match.
Valve body 1 is set to connection runner 11, and the hole P is connected to by connection runner 11 with the left end of spool 5.
The operation principle and process of this No leakage Solenoid ball valve is as follows.
When electromagnet 10 must not be electric, spring 4 is shifted spool 5 at second valve port 71 of the first valve seat 7 by mandril 6, the
One conical surface 52 will seal convex shoulder 54 and be located at 31 left side of through-flow control hole under the complete impaction state of first valve port 71, the first hydraulic fluid port A with
Oil return inlet T blocks, meanwhile, the first hydraulic fluid port A after through-flow control hole 31, the second valve port 71 with pressure oil port P by being connected to.
Electromagnet 10 it is electric, 10 inside mandril 101 of electromagnet pushes spool 5 to overcome the compressing force of spring 4, by spool 5 to
Right promotion first will can be covered gradually on valve pocket 3 with the first hydraulic fluid port A through-flow control hole 31 being connected to when spool 5 moves right
Firmly, so the first hydraulic fluid port A and pressure oil port during the sealing convex shoulder 54 in spool 5 gradually covers through-flow control hole 31
P is still communicated, but oil return inlet T and the first hydraulic fluid port A are off；When the sealing convex shoulder 54 in spool 5 is by through-flow control hole
31 all cover, and when continuing to move right, spool 5 successively can gradually expose through-flow control hole 31, pressure oil during this
Mouth P and the first hydraulic fluid port A can be communicated gradually, and the first hydraulic fluid port A and pressure oil port P are (because of the periphery wall and valve pocket 3 of sealing convex shoulder 54
Inner hole between form liquid sealing) cut-off, until second conical surface 53 compresses the second valve port 81 completely, sealing convex shoulder 54 is located at logical
The right side of flow control drilling 31, the first hydraulic fluid port A by being connected to after through-flow control hole 31, the first valve port 71 with oil return inlet T, meanwhile, first
Hydraulic fluid port A and pressure oil port P is blocked.So the invention can guarantee in operating position and commutation crossover position all No leakages.
Although the preferred embodiment of the present invention has been described in detail above, it is to be clearly understood that for this field
Technical staff for, the invention may be variously modified and varied.Done within the spirit and principles of the present invention
What modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of No leakage Solenoid ball valve, it is characterised in that: including
Valve body (1) with inner passage is provided with the first hydraulic fluid port (A) communicated with inner passage, pressure oil port on valve body (1)
(P) and oil return opening (T)；
Blind nut (2) is mounted on the inner passage right part of valve body (1) to block the right output port of inner passage；
Valve pocket (3) with inner hole, is mounted on the inner passage of valve body (1), and the peripheral wall of valve pocket (3) is equipped with to be connected to valve pocket
(3) the through-flow control hole (31) of inner hole and the first hydraulic fluid port (A)；
The first valve seat (7) with inner hole, is mounted on the left side of valve pocket (3), and the right side of the first valve seat (7) has to communicating valve
Cover the first valve port (71) of (3) inner hole and the hole T；
The second valve seat (8) with inner hole, is mounted on the right side of valve pocket (3), and the left side of the first valve seat (8) has to communicating valve
Cover the second valve port (81) of (3) inner hole and the hole P；
It is convex to be connected with guide cylinder (51), first conical surface (52), second conical surface (53) and sealing in turn from left to right for spool (5)
Shoulder (54) forms liquid sealing, seals the width of convex shoulder (54) between the periphery wall of sealing convex shoulder (54) and the inner hole of valve pocket (3)
Spend the aperture (φ) that (D) is greater than through-flow control hole (31)；
It moves to left to first conical surface (52) thereon in spool (5) by under the first valve port (71) completely impaction state, the sealing is convex
Shoulder (54) is located on the left of through-flow control hole (31), and the first hydraulic fluid port (A) and oil return opening (T) are blocked, meanwhile, the first hydraulic fluid port (A) passes through
Through-flow control hole (31), the second valve port (71) are connected to pressure oil port (P) afterwards；
It moves to right to second conical surface (53) thereon in spool (5) by under the second valve port (81) completely impaction state, the sealing is convex
Shoulder (54) is located on the right side of through-flow control hole (31), the first hydraulic fluid port (A) by through-flow control hole (31), the first valve port (71) afterwards with return
Hydraulic fluid port (T) connection, meanwhile, the first hydraulic fluid port (A) and pressure oil port (P) are blocked；
The first valve port (71) impaction state completely is transitioned into second conical surface (53) for second from first conical surface (52) in spool (5)
During valve port (81) impaction state completely, spool (5) is moved right so as to seal convex shoulder (54) for through-flow control hole (31)
It gradually covers in, the first hydraulic fluid port (A) and pressure oil port (P) gradually block；When sealing convex shoulder (54) is complete by through-flow control hole (31)
Portion covers, and first hydraulic fluid port (A) blocks with oil return opening (T) and pressure oil port (P) simultaneously；Spool (5) continue to move right with
Expose sealing convex shoulder (54) gradually through-flow control hole (31) gradually, oil return opening (T) and the first hydraulic fluid port (A) gradually communicate,
During this, oil return opening (T) and pressure oil port (P) block always；
Spool driving structure, to drive spool (5) to move left and right.
2. No leakage Solenoid ball valve according to claim 1, it is characterised in that: the spool driving structure includes,
Mandril (6) is set to the inner passage of valve body (1) and is located at the right side of spool (5), and the left end of mandril (6) passes through the second valve
Mouth (81) afterwards hold in spool (5) right end face by top, and the right end of mandril (6) is equipped with spring (4), which acts on mandril
(6) trend for making mandril (6) that a left side is kept to push away spool (5)；
Electromagnet (10) is to push spool (5) to move to right.
3. the Solenoid ball valve of No leakage according to claim 2, it is characterised in that: in the inner passage of the valve body (1)
It is equipped with positioning sleeve (9), sealing element, positioning sleeve is equipped between the inner wall of the inner passage of the periphery and valve body (1) of positioning sleeve (9)
(9) between electromagnet (10) and the first valve seat (7), the guide cylinder (51) of the spool (5) is located at the interior of positioning sleeve (9)
Kong Zhong, and sealing element is equipped between the periphery of spool (5) and the inner hole of positioning sleeve (9).
4. No leakage Solenoid ball valve according to claim 2, it is characterised in that: the electromagnet (10) is threadedly connected to valve
Body (1) left end, electromagnet (1) is interior to be equipped with mandril (101), and the right end of mandril (101) is matched with the left end of spool (5).
5. No leakage Solenoid ball valve according to claim 1, it is characterised in that: the valve body (1) is set to connection runner
(11), the hole P is connected to by connection runner (11) with the left end of spool (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710968495.0A CN107725820B (en) | 2017-10-18 | 2017-10-18 | No leakage Solenoid ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710968495.0A CN107725820B (en) | 2017-10-18 | 2017-10-18 | No leakage Solenoid ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107725820A CN107725820A (en) | 2018-02-23 |
| CN107725820B true CN107725820B (en) | 2019-05-21 |
Family
ID=61211684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710968495.0A Active CN107725820B (en) | 2017-10-18 | 2017-10-18 | No leakage Solenoid ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107725820B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111425622A (en) * | 2020-04-10 | 2020-07-17 | 中国船舶重工集团公司第七0三研究所 | Shuttle valve for gas turbine |
| CN111720381B (en) * | 2020-06-29 | 2022-07-15 | 潍柴动力股份有限公司 | A balance valve, hydraulic control system and construction machinery |
| CN113623350B (en) * | 2021-08-12 | 2024-06-21 | 常州普宸电子有限公司 | Built-in adjustable electromagnetic valve |
| CN115992897A (en) * | 2023-02-06 | 2023-04-21 | 北京天玛智控科技股份有限公司 | Split seat and valve |
| CN116181731B (en) * | 2023-03-20 | 2025-07-25 | 河南航天流体控制技术有限公司 | Novel two-position three-way double-valve-core reversing valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201354871Y (en) * | 2009-03-05 | 2009-12-02 | 山东泰丰液压设备有限公司 | Hydraulic electromagnetic ball valve |
| CN201787168U (en) * | 2010-09-29 | 2011-04-06 | 山东泰丰液压股份有限公司 | Hydraulic electromagnetic ball valve with valve core position monitor |
| CN104632738A (en) * | 2014-12-07 | 2015-05-20 | 北京化工大学 | Three-position four-way electromagnetic ball type reversing valve |
| CN205371758U (en) * | 2015-12-17 | 2016-07-06 | 广东华液动力科技有限公司 | Electromagnetic ball valve |
-
2017
- 2017-10-18 CN CN201710968495.0A patent/CN107725820B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201354871Y (en) * | 2009-03-05 | 2009-12-02 | 山东泰丰液压设备有限公司 | Hydraulic electromagnetic ball valve |
| CN201787168U (en) * | 2010-09-29 | 2011-04-06 | 山东泰丰液压股份有限公司 | Hydraulic electromagnetic ball valve with valve core position monitor |
| CN104632738A (en) * | 2014-12-07 | 2015-05-20 | 北京化工大学 | Three-position four-way electromagnetic ball type reversing valve |
| CN205371758U (en) * | 2015-12-17 | 2016-07-06 | 广东华液动力科技有限公司 | Electromagnetic ball valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107725820A (en) | 2018-02-23 |
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Effective date of registration: 20190416 Address after: 325100 Zhoushan Road, Dongou Industrial Zone, Oubei City New Area, Yongjia County, Wenzhou City, Zhejiang Province Applicant after: LIXIN VALVE GROUP CO.,LTD. Address before: 315000 Room 013, Room 18-1, 035, 555 Juxian Road, Ningbo High-tech Zone, Ningbo City, Zhejiang Province Applicant before: NINGBO WENZE ELECTROMECHANICAL TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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Denomination of invention: Leakage free electromagnetic ball valve Effective date of registration: 20230620 Granted publication date: 20190521 Pledgee: Agricultural Bank of China Limited Yongjia County sub branch Pledgor: LIXIN VALVE GROUP CO.,LTD. Registration number: Y2023330001238 |