CN207814075U - The high flow manual reversal valve of included overload protection - Google Patents
The high flow manual reversal valve of included overload protection Download PDFInfo
- Publication number
- CN207814075U CN207814075U CN201820164354.3U CN201820164354U CN207814075U CN 207814075 U CN207814075 U CN 207814075U CN 201820164354 U CN201820164354 U CN 201820164354U CN 207814075 U CN207814075 U CN 207814075U
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- Prior art keywords
- valve
- transition
- oil
- overflow
- valve body
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- Withdrawn - After Issue
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- 230000007704 transition Effects 0.000 claims abstract description 133
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 239000012530 fluid Substances 0.000 claims description 7
- 125000006850 spacer group Chemical group 0.000 claims description 7
- 238000013016 damping Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 99
- 238000010586 diagram Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model is related to a kind of high flow manual reversal valves of included overload protection,Including valve body of main valve,Valve core of main valve,A mouthfuls of work,B mouthfuls of work,Main valve oil inlet,Main valve oil return opening and handle,Wherein,Valve body of main valve is equipped with transition oil inlet and transition oil return opening,Valve body of main valve is fixedly arranged above transition valve,The first oil pressure chamber is equipped with by transition valve core in transition valve body,Transition oil back chamber,Transition oil suction chamber and the second oil pressure chamber,Transition valve core is equipped with oil return annular groove,Transition valve valve deck is equipped with transition spring base,Transition spring is equipped between transition spring base and transition valve core,Overflow valve is fixed on rear side of transition valve,Shuttle valve is equipped in overflow valve,Two shuttle valve oil inlets of shuttle valve are respectively communicated with B mouthfuls of A mouthfuls of work and work,The shuttle valve oil return opening of shuttle valve is connected to the oil inlet of the second oil pressure chamber and overflow valve,The oil return opening of overflow valve is connected to transition oil back chamber.It is smaller and very fast to the pressure release rate of high-voltage oil liquid that the utility model occupies installation space.
Description
Technical field
The utility model is related to a kind of high flow manual reversal valves of included overload protection, belong to hand-operated direction valve design skill
Art field.
Background technology
High flow manual reversal valve is often used in hydraulic control system, is used for the flow direction of manual control hydraulic oil.
High flow manual reversal valve in the prior art, structure function is single, is only capable of completing the commutation work of fluid.But big
In the practical work process of flow hand-operated direction valve, A mouthfuls of work, work B mouthfuls can because hydraulic system or executive component damage,
Abnormal resistance etc. and there is the high pressure beyond service pressure, cause executive component or huge discharge hand-operated direction valve to damage, be
This high pressure of limitation, it usually needs increase overflow mechanism in hydraulic circuit, this mode not only wastes a large amount of installation
Space, moreover, pressure release speed is slower, since hydraulic oil discharge capacity is larger, fluid unloads not in time, can still cause executive component or
The damage of huge discharge hand-operated direction valve.
Utility model content
According to the above-mentioned deficiencies in the prior art, the technical problems to be solved in the utility model is：A kind of occupancy peace is provided
Fill that space is smaller, high flow manual reversal valve of the higher included overload protection of pressure release rate.
The high flow manual reversal valve of included overload protection described in the utility model, including valve body of main valve, valve core of main valve,
A mouthfuls of work, B mouthfuls of work, main valve oil inlet, main valve oil return opening and handle, wherein the upper side wall of valve body of main valve is equipped with and main valve
The transition oil inlet of oil inlet connection and the transition oil return opening being connected to main valve oil return opening, valve body of main valve are fixedly arranged above transition
Valve, transition valve include transition valve body and the transition valve valve deck to match with transition valve body, are slidably connected in transition valve body
There are transition valve core, transition valve core to be formed by space with transition valve body and be divided into the first oil pressure chamber, mistake from left to right
Oil back chamber, transition oil suction chamber and the second oil pressure chamber are crossed, the first oil pressure chamber is connected to transition oil suction chamber by fabrication hole, transition oil inlet
Chamber connect transition oil inlet, transition oil back chamber connect transition oil return opening, transition valve core be equipped with transition oil back chamber, transition into
The corresponding oil return annular groove of oil pocket, transition valve valve deck are equipped with transition spring base, are set between transition spring base and transition valve core
There is transition spring, overflow valve is fixed on rear side of transition valve, is equipped with shuttle valve in overflow valve, two shuttle valve oil inlets of shuttle valve lead to respectively
B mouthfuls of A mouthfuls of multiple fabrication hole connection work and work are crossed, the shuttle valve oil return opening of shuttle valve is connected to the second oil pressure chamber by fabrication hole and overflows
The oil inlet of valve is flowed, the oil return opening of overflow valve is connected to transition oil back chamber by fabrication hole.
Above-mentioned valve body of main valve is equipped with two and is separately connected A mouthful of work and B mouthfuls of the first inclined tubes of working, on transition valve body
The second inclined tube for being separately connected two shuttle valve oil inlets equipped with two, two first inclined tubes are separately connected two second inclined tubes.
Above-mentioned transition valve core is internally provided with an inner cavity being connected to the second oil pressure chamber, and transition valve core, which is equipped with, to be connected
Connect the damping hole of inner cavity and oil return annular groove, interior intracavitary is additionally provided with that matched ball is stifled and inner spring seat, inner spring seat are stifled with ball
Between be equipped with inner spring, one end of the transition spring is fixed on the inner spring seat in transition valve core, can effectively prevent
Transition valve core shakes at work, keeps the movement of transition valve core more stable.
The rear and front end of above-mentioned valve body of main valve is respectively equipped with valve body protecgulum and valve body rear cover, and the front end of valve core of main valve is equipped with
One is equipped with retaining spring in its radial location hole, location hole, and the both ends of retaining spring are equipped with positioning ball, valve body protecgulum
It is equipped with bayonet corresponding with two positioning balls, the rear end of valve core of main valve is equipped with one through its radial spacer pin, valve body rear cover
On be fixed with block corresponding with spacer pin, it is simple in structure durable using the built-in limit method to handle, effectively extend
The service life of valve；Also, position positions in being carried out by the cooperation of two positioning balls and bayonet, not only accurate positioning, Er Qiewei
It is stronger to set sense.
Above-mentioned bayonet is pass through aperture, and manufacturing process is simple.
Above-mentioned overflow valve includes overflow valve body, overflow valve deck, relief valve seat, overflow spool, overflow spring and overflow bullet
Spring abutment is slidably connected between overflow spring base and overflow valve body, overflow valve cover be threaded with it is corresponding with overflow spring base
Screw press, convenient for adjust the high-voltage value to be unloaded.
Possessed advantageous effect is the utility model compared with prior art：
The high flow manual reversal valve of included overload protection described in the utility model is equipped with overflow valve and transition valve, nothing
Other overflow mechanisms need to be additionally set, installation space is not only greatly saved, but also very fast to the pressure release rate of high-voltage oil liquid, prevented
Only because pressure release not in time due to cause the damage of executive component.
Description of the drawings
Fig. 1 is the front view of the utility model；
Fig. 2 is the rearview of the utility model；
Fig. 3 is the vertical view of the utility model；
Fig. 4 is the sectional view at C-C in Fig. 3；
Fig. 5 is the sectional view at B-B in Fig. 1；
Fig. 6 is the sectional view at A-A in Fig. 1；
Fig. 7 is the internal structure schematic diagram of the shuttle valve of the utility model；
Fig. 8 is the internal structure schematic diagram of the transition valve core of the utility model；
Fig. 9 is the sectional view at the spacer pin of the utility model；
Figure 10 is the sectional view at the location hole of the utility model；
Figure 11 is the hydraulic schematic diagram of the utility model.
In figure：1, valve body of main valve；2, it works B mouthfuls；3, it works A mouthfuls；4, transition valve；5, handle；6, overflow valve；7, main valve into
Hydraulic fluid port；8, main valve oil return opening；9, relief valve seat；10, overflow spool；11, shuttle valve；12, overflow valve body；13, overflow spring；14、
Overflow spring base；15, overflow valve deck；16, screw press；17, valve body rear cover；18, spacer pin；19, valve core of main valve；20, transition
Oil return opening；21, transition oil inlet；23, transition oil back chamber；24, transition valve core；25, the first oil pressure chamber；26, damping hole；27、
Oil return annular groove；28, transition valve body；29, transition oil suction chamber；30, transition spring；31, the second oil pressure chamber；32, transition spring base；
33, transition valve valve deck；34, bayonet；35, retaining spring；36, ball is positioned；37, valve body protecgulum；38, block；39, the first inclined tube；
40, the second inclined tube；41, shuttle valve oil inlet；42, shuttle valve oil return opening；43, inner cavity；44, ball is stifled；45, inner spring；46, inner spring
Seat.
Specific implementation mode
The embodiments of the present invention are described further below in conjunction with the accompanying drawings：
As shown in Figure 1 to 11, the high flow manual reversal valve of included overload protection described in the utility model, including master
Valve body 1, valve core of main valve 19, work A mouths 3, work B mouths 2, main valve oil inlet 7, main valve oil return opening 8 and handle 5, wherein main valve
The upper side wall of valve body 1 is equipped with the transition oil inlet 21 being connected to main valve oil inlet 7 and is transited back with what main valve oil return opening 8 was connected to
Hydraulic fluid port 20, valve body of main valve 1 are fixedly arranged above transition valve 4, transition valve 4 include transition valve body 28 and with 28 phase of transition valve body
Matched transition valve valve deck 33 slidably connects transition valve core 24, transition valve core 24 and transition valve in transition valve body 28
Valve body 28 is formed by space and is divided into the first oil pressure chamber 25, transition oil back chamber 23, transition oil suction chamber 29 and from left to right
Two oil pressure chambers 31, the first oil pressure chamber 25 are connected to transition oil suction chamber 29 by fabrication hole, and transition oil suction chamber 29 connects transition oil inlet
Mouth 21, transition oil back chamber 23 connect transition oil return opening 20, and transition valve core 24 is equipped with and transition oil back chamber 23, transition oil suction chamber
29 corresponding oil return annular grooves 27, transition valve valve deck 33 are equipped with transition spring base 32, transition spring base 32 and transition valve core
Transition spring 30 is equipped between 24, the rear side of transition valve 4 is fixed with overflow valve 6, shuttle valve 11 is equipped in overflow valve 6, shuttle valve 11
Two shuttle valve oil inlets 41 are connected to work A mouths 3 and work B mouths 2 by multiple fabrication holes respectively, and the shuttle valve oil return opening 42 of shuttle valve 11 is logical
The oil inlet that fabrication hole is connected to the second oil pressure chamber 31 and overflow valve 6 is crossed, the oil return opening of overflow valve 6 is transited back by fabrication hole connection
Oil pocket 23.
In preferred embodiment：Valve body of main valve 1 is equipped with two the first inclined tubes 39 for being separately connected work A mouths 3 and the B mouths 2 that work,
Transition valve body 28 is equipped with two the second inclined tubes 40 for being separately connected two shuttle valve oil inlets 41, and two first inclined tubes 39 are separately connected two
Second inclined tube 40；Transition valve core 24 is internally provided with an inner cavity 43 being connected to the second oil pressure chamber 31, on transition valve core 24
Equipped with the damping hole 26 for connecting inner cavity 43 and oil return annular groove 27, matched ball stifled 44 and inner spring seat are additionally provided in inner cavity 43
46, it is equipped with inner spring 45 between inner spring seat 46 and ball stifled 44, one end of the transition spring 30 is fixed on transition valve core
On inner spring seat 46 in 24, transition valve core 24 can be effectively prevent to shake at work, make the movement of transition valve core 24 more
Steadily；The rear and front end of valve body of main valve 1 is respectively equipped with valve body protecgulum 37 and valve body rear cover 17, and the front end of valve core of main valve 19 is equipped with one
The location hole radial through it, location hole is interior to be equipped with retaining spring 35, and the both ends of retaining spring 35 are equipped with positioning ball 36, valve body
Protecgulum 37 is equipped with bayonet 34 corresponding with two positioning balls 36, and the rear end of valve core of main valve 19 is equipped with one through its radial limit
Pin 18 is fixed with block 38 corresponding with spacer pin 18 on valve body rear cover 17, using the built-in limit method to handle 5,
It is simple in structure durable, effectively extend the service life of valve；Also, position in being carried out by the cooperation of two positioning balls 36 and bayonet 34
Positioning, not only accurate positioning, and also position sense is stronger；Bayonet 34 is pass through aperture, and manufacturing process is simple；Overflow valve 6 includes overflowing
Flow valve body 12, overflow valve deck 15, relief valve seat 9, overflow spool 10, overflow spring 13 and overflow spring base 14, overflow spring base
It is slidably connected between 14 and overflow valve body 12, pressure regulation spiral shell corresponding with overflow spring base 14 is threaded on overflow valve deck 15
Bar 16, convenient for adjusting the high-voltage value to be unloaded.
In use, work A mouths 3, work B mouths 2 are connected to C1, C2 mouth of executive component (motor or oil cylinder) respectively,
When handle 5 is in P-A commutation positions, in normal work, since main valve oil inlet 7 is connected to work A mouths 3, thus, the first oil
It presses chamber 25 consistent with the pressure in the second oil pressure chamber 31, causes to be formed at work A mouths 3 in the abnormal resistance of appearance or damage parts
When high pressure, high pressure can be also formed simultaneously in the first oil pressure chamber 25 and the second oil pressure chamber 31, then, the high-voltage oil liquid at work A mouths 3
Pass sequentially through the high pressure in the first inclined tube 39, the second inclined tube 40, shuttle valve oil inlet 41, shuttle valve oil return opening 42 and the second oil pressure chamber 31
Fluid mixes, and the oil inlet through overflow valve 6 opens overflow valve 6 together, then flow to transition oil return by the oil return opening of overflow valve 6
Then chamber 23 carries out pressure release through transition oil return opening 20, main valve oil return opening 8, to, the pressure reduction in the second oil pressure chamber 31, so
And the pressure originally in holding the first oil pressure chamber 25 consistent with pressure in the second oil pressure chamber 31 is constant, and therefore, the first oil pressure chamber
High-voltage oil liquid in 25 can push transition valve core 24 to overcome the bearing force of transition spring 30 and move, make transition oil back chamber 23 with
Transition oil suction chamber 29 is ganged up by oil return annular groove 27, to which high-voltage oil liquid is through main valve oil inlet 7, transition oil inlet 21, mistake
It crosses oil suction chamber 29, oil return annular groove 27, transition oil back chamber 23, transition oil return opening 20, main valve oil return opening 8 and carries out oil return, complete high pressure
The unloading of fluid；When handle 5 is in P-B commutation positions, principle and handle 5 are in consistent when P-A commutation positions.
The high flow manual reversal valve of included overload protection described in the utility model is equipped with overflow valve 6 and transition valve 4,
It is not necessary that other overflow mechanisms are additionally arranged, installation space is not only greatly saved, but also very fast to the pressure release rate of high-voltage oil liquid,
Prevent because pressure release not in time due to cause the damage of executive component.
Claims (6)
1. a kind of high flow manual reversal valve of included overload protection, including valve body of main valve (1), valve core of main valve (19), A mouthfuls of work
(3), work B mouthfuls (2), main valve oil inlet (7), main valve oil return opening (8) and handle (5), it is characterised in that：Valve body of main valve (1)
Upper side wall is equipped with the transition oil inlet (21) being connected to main valve oil inlet (7) and is transited back with what main valve oil return opening (8) was connected to
Hydraulic fluid port (20), valve body of main valve (1) are fixedly arranged above transition valve (4), and transition valve (4) includes transition valve body (28) and and transition
The transition valve valve deck (33) that valve body (28) matches, transition valve body (28) is interior to slidably connect transition valve core (24), mistake
It crosses valve core (24) and transition valve body (28) and is formed by space and be divided into the first oil pressure chamber (25) from left to right, transit back
Oil pocket (23), transition oil suction chamber (29) and the second oil pressure chamber (31), the first oil pressure chamber (25) pass through work with transition oil suction chamber (29)
Skill hole is connected to, and transition oil suction chamber (29) connects transition oil inlet (21), and transition oil back chamber (23) connects transition oil return opening (20), mistake
It crosses valve core (24) and is equipped with oil return annular groove (27) corresponding with transition oil back chamber (23), transition oil suction chamber (29), transition valve
Valve deck (33) is equipped with transition spring base (32), and transition spring is equipped between transition spring base (32) and transition valve core (24)
(30), it is fixed with overflow valve (6) on rear side of transition valve (4), shuttle valve (11), two shuttle valves of shuttle valve (11) are equipped in overflow valve (6)
Oil inlet (41) is connected to work A mouthfuls (3) and work B mouthfuls (2), the shuttle valve oil return opening of shuttle valve (11) by multiple fabrication holes respectively
(42) oil inlet of the second oil pressure chamber (31) and overflow valve (6) is connected to by fabrication hole, the oil return opening of overflow valve (6) passes through technique
Hole is connected to transition oil back chamber (23).
2. the high flow manual reversal valve of included overload protection according to claim 1, it is characterised in that：The main valve
Valve body (1) is equipped with two the first inclined tubes (39) for being separately connected work A mouthful (3) and work B mouthfuls (2), on transition valve body (28)
The second inclined tube (40) for being separately connected two shuttle valve oil inlets (41) equipped with two, two first inclined tubes (39) are separately connected two second inclined tubes
(40)。
3. the high flow manual reversal valve of included overload protection according to claim 1 or 2, it is characterised in that：Described
Transition valve core (24) is internally provided with an inner cavity (43) being connected to the second oil pressure chamber (31), and transition valve core (24) is equipped with
The damping hole (26) of inner cavity (43) and oil return annular groove (27) is connected, it is stifled (44) and interior that matched ball is additionally provided in inner cavity (43)
Spring base (46), inner spring seat (46) and ball are equipped with inner spring (45), one end of the transition spring (30) between blocking up (44)
It is fixed on the inner spring seat (46) in transition valve core (24).
4. the high flow manual reversal valve of included overload protection according to claim 1 or 2, it is characterised in that：Described
The rear and front end of valve body of main valve (1) is respectively equipped with valve body protecgulum (37) and valve body rear cover (17), and the front end of valve core of main valve (19) is set
There is one to be equipped with retaining spring (35) in its radial location hole, location hole, the both ends of retaining spring (35) are equipped with positioning
Ball (36), valve body protecgulum (37) are equipped with bayonet (34) corresponding with two positioning ball (36), and the rear end of valve core of main valve (19) is set
There is one to be fixed with block (38) corresponding with spacer pin (18) on its radial spacer pin (18), valve body rear cover (17).
5. the high flow manual reversal valve of included overload protection according to claim 4, it is characterised in that：The bayonet
(34) it is pass through aperture.
6. the high flow manual reversal valve of included overload protection according to claim 1 or 2, it is characterised in that：Described
Overflow valve (6) includes overflow valve body (12), overflow valve deck (15), relief valve seat (9), overflow spool (10), overflow spring (13)
With overflow spring base (14), it is slidably connected between overflow spring base (14) and overflow valve body (12), screw thread on overflow valve deck (15)
It is connected with screw press (16) corresponding with overflow spring base (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820164354.3U CN207814075U (en) | 2018-01-31 | 2018-01-31 | The high flow manual reversal valve of included overload protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820164354.3U CN207814075U (en) | 2018-01-31 | 2018-01-31 | The high flow manual reversal valve of included overload protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207814075U true CN207814075U (en) | 2018-09-04 |
Family
ID=63322338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820164354.3U Withdrawn - After Issue CN207814075U (en) | 2018-01-31 | 2018-01-31 | The high flow manual reversal valve of included overload protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207814075U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223479A (en) * | 2018-01-31 | 2018-06-29 | 邹城市益凯德液压有限公司 | The high flow manual reversal valve of included overload protection |
-
2018
- 2018-01-31 CN CN201820164354.3U patent/CN207814075U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223479A (en) * | 2018-01-31 | 2018-06-29 | 邹城市益凯德液压有限公司 | The high flow manual reversal valve of included overload protection |
| CN108223479B (en) * | 2018-01-31 | 2024-03-29 | 山东益凯德液压股份有限公司 | Large-flow manual reversing valve with overload protection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 273522 No. 2998, Yihua Road, Tangcun Town, Zoucheng City, Jining City, Shandong Province Patentee after: Shandong yikaide Hydraulic Co.,Ltd. Address before: 273522 No. 2998, Yihua Road, Tangcun Town, Zoucheng City, Jining City, Shandong Province Patentee before: ZOUCHENG YIKDE HYDRAULIC CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180904 Effective date of abandoning: 20240329 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180904 Effective date of abandoning: 20240329 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |