CN204253995U - Screw thread inserting type bi-bit bi-pass often drives two non-return solenoid valve - Google Patents
Screw thread inserting type bi-bit bi-pass often drives two non-return solenoid valve Download PDFInfo
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- CN204253995U CN204253995U CN201420700599.5U CN201420700599U CN204253995U CN 204253995 U CN204253995 U CN 204253995U CN 201420700599 U CN201420700599 U CN 201420700599U CN 204253995 U CN204253995 U CN 204253995U
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Abstract
A kind of screw thread inserting type bi-bit bi-pass often drives two non-return solenoid valve, comprise valve pocket, plunger tube, determine iron, coil, end cap, spool, resetting-mechanism and push rod, valve pocket front end has the first hydraulic fluid port and the second hydraulic fluid port, plunger tube inner chamber is provided with a dynamic iron, and poppet shaft is to being provided with movably in aforesaid valve pocket; Push rod shaft aforementionedly to be determined in iron cavity to running through movably to be located at and can to spool, spool be moved forward the force transmission of aforementioned dynamic iron, it is characterized in that described dynamic iron has the eccentric duct of an axis, further, the pushed section that can offset with putting back-end face of a projection is formed in the middle part of the front-end face of described dynamic iron.Compared with prior art, the utility model has the advantage of: dynamic Railway transportation dynamic resistance can be reduced in eccentric duct, shorten solenoid valve opening and closing time, protruding pushed section exists, and can produce adhesive gap, play separated magnetic effect, reduce dynamic iron release time, therefore, solenoid valve speed of response improves greatly.
Description
Technical field
The utility model relates to a kind of two-position two-way solenoid valve.
Background technique
In the machinery, hydraulic system in modern times, widely applied dual check oil hydraulic circuit, wherein dual way check valve is the crucial hydraulic element of this type systematic, and the quality of dual check valve performance directly affects the performance of main frame.Existing double check valve is divided into board-like double check valve and plug-in type dual way check valve two kinds by Placement, in systems in which in order to reduce installing space, improving system reliability, generally adopting plug-in type dual way check valve.Existing plug-in type safety check has the following disadvantages: first, and electromagnet argon arc welding technique is subject to narrow limitation, welds the quality problems such as pore, partially weldering, welding stress, thus reduce working life and reliability in welding; Secondly, structure is thin, and technology difficulty is large, and during product actual use, jack decentraction or mounting torque are crossed conference spool is blocked, and cause having a strong impact on to reliability of main; Again, the solenoid valve response time has much room for improvement.
For this reason, made some to the two non-return electromagnetic valve structure of existing plug-in type in prior art to improve.See that the patent No. is the Chinese utility model patent " bi-bit bi-pass normally open solenoid valve " (Authorization Notice No. is CN203571177U) of ZL201320662524.8, this patent structure is compacter, internal leakage is little, solves the partial technical problems of above-mentioned proposition.But can also be further improved.
Model utility content
Technical problem to be solved in the utility model provides a kind of to respond fast screw thread inserting type bi-bit bi-pass often drive two non-return solenoid valve for the above-mentioned state of the art.
Another technical problem to be solved in the utility model is to provide a kind of high workload pressure, the screw thread inserting type bi-bit bi-pass of life-span length often drives two non-return solenoid valve.
2, the utility model solves the problems of the technologies described above adopted technological scheme and is: a kind of screw thread inserting type bi-bit bi-pass
Often drive two non-return solenoid valve, comprise
Valve pocket, front end has the first hydraulic fluid port and the second hydraulic fluid port;
Plunger tube, inner chamber is provided with a dynamic iron;
Determine iron, the rear end of front end and aforementioned valve pocket is linked and packed, and rear end is connected with aforementioned plunger tube, and this is determined iron hollow shape and becomes cavity;
Coil, is coated on aforementioned plunger tube and determines outside iron;
End cap, is located at the rear end of aforementioned plunger tube;
Spool, axially can be provided with in aforesaid valve pocket movably;
Resetting-mechanism, is located in valve pocket and also forces aforementioned spool to keep the trend of movement backward all the time; And
Push rod, axially can run through movably to be located at and aforementionedly determine also can to spool, spool be moved forward the force transmission of aforementioned dynamic iron in iron cavity,
It is characterized in that described dynamic iron has the eccentric duct of an axis, and, form the pushed section that can offset with putting back-end face of a projection in the middle part of the front-end face of described dynamic iron;
Under aforementioned coil obtains electricity condition, it is stressed and move forward that the effect of aforesaid spool drawn stem overcomes resetting-mechanism, and spool seals valve pocket, and aforesaid first hydraulic fluid port and the second hydraulic fluid port are in blocking state;
Under aforementioned coil losing electricity state, aforementioned spool moves backward by resetting-mechanism effect, and spool is removed valve pocket shutoff, and aforesaid first hydraulic fluid port and the second hydraulic fluid port are in logical oil condition.
Described plunger tube front end with determine iron rear end and be welded as a whole by brazing ring.Comparatively argon arc welding welding stroke increases, and more withstand voltage, rated working pressure can reach more than 350bar.
For making sealing thorough rapidly, the middle part of described spool has the conical surface, and accordingly, the inwall of described valve pocket forms with aforementioned conical surface close fit to block the auxiliary section of the first hydraulic fluid port and the second hydraulic fluid port.
As preferably, described resetting-mechanism can comprise
Spring seat, is shaped in the periphery wall of spool rear end; And
Returnning spring, is sheathed on the rearward end of described spool, and the internal chamber wall of front end and aforementioned valve pocket offsets, and rear end and aforesaid spring seat offset.
Further, the rear end of described valve pocket has internal thread, accordingly, described front end of determining iron has with the outside thread of aforementioned internal thread threaded and is positioned at the outer ending shoulder of outside thread rear end for spacing valve pocket, further, describedly determine to have between the outside thread of iron and outer ending shoulder the annular seal groove arranged for seal ring.
Further, described end cap hollow and move when being provided with a coil losing electricity iron can meet an urgent need commutation hand push rod and can the stop collar of this hand push rod spacing.
As preferably, described valve pocket is axially formed with leading portion cavity and back segment cavity from front to back, the axial port of aforementioned leading portion cavity forms the first hydraulic fluid port, the oblique layout of described second hydraulic fluid port also communicates in front end cavity, under aforementioned coil losing electricity state, the second described hydraulic fluid port communicates with the back segment cavity of valve pocket, and described poppet shaft forms oily passage to hollow, ins succession the first hydraulic fluid port and valve pocket back segment cavity respectively in these oily passage two ends.
As preferably, the radial cross section of described push rod is outer regular hexagon.Resistance to motion can be reduced and reduce and start remanent magnetism suction.
Further, the front end exterior edge face of described spool forms compensating groove.The existence of compensating groove can ensure that spool leads rapid centering.
Compared with prior art, the utility model has the advantage of: dynamic Railway transportation dynamic resistance can be reduced in eccentric duct, shorten solenoid valve opening and closing time, protruding pushed section exists, and can produce adhesive gap, play separated magnetic effect, reduce dynamic iron release time, therefore, solenoid valve speed of response improves greatly.Installation precision is high simultaneously, and good reliability, under rated working pressure, the long lifetime, internal leakage is little.Be applicable to that high workload pressure, internal leakage are little, long lifetime and integratedly to require in high various systems, engineering machinery and equipment.
Accompanying drawing explanation
Fig. 1 is example structure schematic diagram.
Fig. 2 is spool and valve pocket combined amplifier figure in Fig. 1.
Fig. 3 is the dynamic iron enlarged view of Fig. 1.
Fig. 4 is the side view of push rod in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
As depicted in figs. 1 and 2, screw thread inserting type bi-bit bi-pass in the present embodiment often opens that two non-return solenoid valve comprises valve pocket 1, plunger tube 9, dynamic iron 5, determine iron 3, coil (without marking in figure), end cap 6, spool 2, resetting-mechanism and push rod 4, valve pocket 1 front end has the first hydraulic fluid port 1a and the second hydraulic fluid port 2a, and the inwall of valve pocket 1 forms auxiliary section.
Plunger tube 9 front end with determine iron 3 rear end and be welded as a whole by brazing ring.Shown in composition graphs 3, dynamic iron 5 can be located at the inner chamber of plunger tube 9 movably, and dynamic iron 5 has the eccentric duct of an axis, forms the pushed section that can offset with push rod 4 ear end face of a projection in the middle part of the front-end face of dynamic iron 5.
The rear end of determining iron 3 front end and valve pocket 1 is linked and packed, and rear end is connected with plunger tube 9, and this is determined iron 3 hollow shape and becomes cavity; Coil is coated on plunger tube 9 and determines outside iron 3; End cap 6 is located at the rear end of plunger tube 9, end cap 6 hollow and move when being provided with a coil losing electricity iron 5 can meet an urgent need commutation hand push rod 61 and can the stop collar of this hand push rod 61 spacing.During short of electricity, act on hand push rod 61 with suitable hexagon wrench, reach the object of manual reverse of direction.
Spool 2 axially can be provided with in valve pocket 1 movably, and the middle part of spool 2 has the conical surface 22, and the conical surface 22 contacts close fit with the auxiliary section of valve pocket 1 can block the first hydraulic fluid port 1a and the second hydraulic fluid port 2a; The front end exterior edge face of spool 2 forms compensating groove 21.
Resetting-mechanism is located in valve pocket 1 and is also forced aforementioned spool 2 to keep the trend of movement backward all the time, and the resetting-mechanism in the present embodiment comprises spring seat 82 and Returnning spring 81, and spring seat 82 is shaped in the periphery wall of spool 2 rear end; Returnning spring 81 is sheathed on the rearward end of spool 2, and the internal chamber wall of front end and valve pocket 1 offsets, and rear end and spring seat 82 offset.
Push rod 4 axially can run through to be located at movably to be determined in iron 3 cavity and spool 2 can be moved forward by the force transmission of dynamic iron 5 to spool 2, and the radial cross section of the push rod 4 in the present embodiment is outer regular hexagon (as shown in Figure 4).
The rear end of valve pocket 1 has internal thread, accordingly, the front end of determining iron 3 has with the outside thread of internal thread threaded and is positioned at the outer ending shoulder 31 of outside thread rear end for spacing valve pocket 1, and, determine that there is between the outside thread of iron 3 and outer ending shoulder 31 annular seal groove arranged for seal ring 32.
Valve pocket 1 is axially formed with leading portion cavity and back segment cavity from front to back, the axial port of leading portion cavity forms the first hydraulic fluid port 1a, the oblique layout of second hydraulic fluid port 2a also communicates in front end cavity, under coil losing electricity state, second hydraulic fluid port 2a communicates with the back segment cavity of valve pocket 1, the axial hollow of spool 2 forms oily passage 23, ins succession the first hydraulic fluid port 1a and valve pocket 1 back segment cavity respectively in these oily passage 23 two ends.
Coil obtain electric after, dynamic iron 5 moves forward under magnetic fields, and before driving, push rod 4 moves forward, and then makes front push rod 4 promote spool 2 to move forward and compression reseting spring, the conical surface of spool 2 contacts airtight with the auxiliary section of valve pocket 1, and the first hydraulic fluid port 1a and the second hydraulic fluid port 2a blocks; Coil losing electricity, spool 2 moves backward under the effect of Returnning spring, and the conical surface of spool 2 departs from the auxiliary section sealing contact of valve pocket 1 and makes the logical oil of the first hydraulic fluid port 1a and the second hydraulic fluid port 2a; Coil obtain electric after, spool 2 restores to the original state.
Solenoid valve jack volume in the present embodiment is little, compact structure, seat valve formula structure, and without internal leakage, direct dynamic structure fast response time, in 40 milliseconds, high workload pressure, can reach 350bar.
Claims (9)
1. screw thread inserting type bi-bit bi-pass often drives a two non-return solenoid valve, comprises
Valve pocket, front end has the first hydraulic fluid port and the second hydraulic fluid port;
Plunger tube, inner chamber is provided with a dynamic iron;
Determine iron, the rear end of front end and aforementioned valve pocket is linked and packed, and rear end is connected with aforementioned plunger tube, and this is determined iron hollow shape and becomes cavity;
Coil, is coated on aforementioned plunger tube and determines outside iron;
End cap, is located at the rear end of aforementioned plunger tube;
Spool, axially can be provided with in aforesaid valve pocket movably;
Resetting-mechanism, is located in valve pocket and also forces aforementioned spool to keep the trend of movement backward all the time; And
Push rod, axially can run through movably to be located at and aforementionedly determine also can to spool, spool be moved forward the force transmission of aforementioned dynamic iron in iron cavity,
It is characterized in that described dynamic iron has the eccentric duct of an axis, and, form the pushed section that can offset with putting back-end face of a projection in the middle part of the front-end face of described dynamic iron;
Under aforementioned coil obtains electricity condition, it is stressed and move forward that the effect of aforesaid spool drawn stem overcomes resetting-mechanism, and spool seals valve pocket, and aforesaid first hydraulic fluid port and the second hydraulic fluid port are in blocking state;
Under aforementioned coil losing electricity state, aforementioned spool moves backward by resetting-mechanism effect, and spool is removed valve pocket shutoff, and aforesaid first hydraulic fluid port and the second hydraulic fluid port are in logical oil condition.
2. screw thread inserting type bi-bit bi-pass according to claim 1 often drives two non-return solenoid valve, it is characterized in that described plunger tube front end and determine iron rear end being welded as a whole by brazing ring.
3. screw thread inserting type bi-bit bi-pass according to claim 1 often drives two non-return solenoid valve, it is characterized in that the middle part of described spool has the conical surface, accordingly, the inwall of described valve pocket forms with aforementioned conical surface close fit to block the auxiliary section of the first hydraulic fluid port and the second hydraulic fluid port.
4. often drive two non-return solenoid valve according to screw thread inserting type bi-bit bi-pass according to claim 1, it is characterized in that described resetting-mechanism comprises
Spring seat, is shaped in the periphery wall of spool rear end; And
Returnning spring, is sheathed on the rearward end of described spool, and the internal chamber wall of front end and aforementioned valve pocket offsets, and rear end and aforesaid spring seat offset.
5. screw thread inserting type bi-bit bi-pass according to claim 1 often drives two non-return solenoid valve, it is characterized in that the rear end of described valve pocket has internal thread, accordingly, described front end of determining iron has with the outside thread of aforementioned internal thread threaded and is positioned at the outer ending shoulder of outside thread rear end for spacing valve pocket, further, describedly determine to have between the outside thread of iron and outer ending shoulder the annular seal groove arranged for seal ring.
6. screw thread inserting type bi-bit bi-pass according to claim 1 often drives two non-return solenoid valve, moves iron and can meet an urgent need the stop collar of the hand push rod that commutates and energy this hand push rod spacing when it is characterized in that described end cap hollow and be provided with a coil losing electricity.
7. screw thread inserting type bi-bit bi-pass according to claim 1 often drives two non-return solenoid valve, it is characterized in that described valve pocket is axially formed with leading portion cavity and back segment cavity from front to back, the axial port of aforementioned leading portion cavity forms the first hydraulic fluid port, the oblique layout of described second hydraulic fluid port also communicates in front end cavity, under aforementioned coil losing electricity state, the second described hydraulic fluid port communicates with the back segment cavity of valve pocket, described poppet shaft forms oily passage to hollow, ins succession the first hydraulic fluid port and valve pocket back segment cavity respectively in these oily passage two ends.
8. screw thread inserting type bi-bit bi-pass according to claim 1 often drives two non-return solenoid valve, it is characterized in that the radial cross section of described push rod is outer regular hexagon.
9. screw thread inserting type bi-bit bi-pass according to claim 8 often drives two non-return solenoid valve, it is characterized in that the front end exterior edge face of described spool forms compensating groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420700599.5U CN204253995U (en) | 2014-11-20 | 2014-11-20 | Screw thread inserting type bi-bit bi-pass often drives two non-return solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420700599.5U CN204253995U (en) | 2014-11-20 | 2014-11-20 | Screw thread inserting type bi-bit bi-pass often drives two non-return solenoid valve |
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| CN204253995U true CN204253995U (en) | 2015-04-08 |
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| CN201420700599.5U Active CN204253995U (en) | 2014-11-20 | 2014-11-20 | Screw thread inserting type bi-bit bi-pass often drives two non-return solenoid valve |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2702055C1 (en) * | 2019-02-22 | 2019-10-03 | Общество с ограниченной ответственностью "Корпорация Акционерной Компании "Электросевкавмонтаж" | Shutoff valve with a drive and a control system thereof |
| CN109154400B (en) * | 2016-05-17 | 2020-03-13 | 罗伯特·博世有限公司 | Valve cartridge for a solenoid valve and associated solenoid valve |
-
2014
- 2014-11-20 CN CN201420700599.5U patent/CN204253995U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109154400B (en) * | 2016-05-17 | 2020-03-13 | 罗伯特·博世有限公司 | Valve cartridge for a solenoid valve and associated solenoid valve |
| RU2702055C1 (en) * | 2019-02-22 | 2019-10-03 | Общество с ограниченной ответственностью "Корпорация Акционерной Компании "Электросевкавмонтаж" | Shutoff valve with a drive and a control system thereof |
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