CN208587341U - A kind of hydraulic lock system of complex function - Google Patents
A kind of hydraulic lock system of complex function Download PDFInfo
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- CN208587341U CN208587341U CN201820842495.6U CN201820842495U CN208587341U CN 208587341 U CN208587341 U CN 208587341U CN 201820842495 U CN201820842495 U CN 201820842495U CN 208587341 U CN208587341 U CN 208587341U
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Abstract
The utility model belongs to hydraulic system technical field, disclose a kind of hydraulic lock system of complex function, including valve body, there are two one-way throttle valve, two safety valves and a hydraulic locks for valve inner setting, the side of valve body is provided with the first hydraulic fluid port A and the second hydraulic fluid port B of connection hydraulicdirectional control valve, the other side is provided with the third hydraulic fluid port A1 and the 4th hydraulic fluid port B1 for connecting executive device of surging, wherein the first hydraulic fluid port A is connected to by sequentially connected first one-way throttle valve, hydraulic lock with third hydraulic fluid port A1；Second hydraulic fluid port B is connected to by sequentially connected second one-way throttle valve, hydraulic lock with the 4th hydraulic fluid port B1；4th hydraulic fluid port B1 is connected to by sequentially connected first safety valve, the second one-way throttle valve with the first hydraulic fluid port A；Third hydraulic fluid port A1 is connected to by sequentially connected second safety valve, the first one-way throttle valve with the second hydraulic fluid port B.The utility model integrated level is high, compact-sized, functional.
Description
Technical field
The utility model relates to hydraulic system technical field more particularly to a kind of hydraulic lock systems of complex function.
Background technique
Hydraulic lock is one of the key element of hydraulic actuating mechanism positive lock at an arbitrary position in hydraulic system, is answered extensively
For the hydraulic lock circuit in the equipment such as hoisting machinery, engineering machinery.
Existing hydraulic lock function is relatively simple, some only have single hydraulic lock function, can not achieve speed regulation, safety is protected
The functions such as shield.Currently, more and more hydraulic devices need to be provided simultaneously with the functions such as position locking, speed regulation, safeguard protection, need
The Hydraulic Elements such as hydraulic lock, speed governing valve, safety valve are selected to carry out circuit design, system is complex huge, is unfavorable for integrated set
Meter.Therefore, it is necessary to design, a kind of integrated level is high, the hydraulic lock system of compact-sized complex function.
Utility model content
The purpose of this utility model is to provide a kind of hydraulic lock system of complex function, integrated level is high, compact-sized.
For this purpose, the utility model uses following technical scheme:
A kind of hydraulic lock system of complex function, including valve body, there are two one-way throttle valves, two for the valve inner setting
Safety valve and a hydraulic lock, the side of the valve body are provided with the first hydraulic fluid port A and the second hydraulic fluid port B of connection hydraulicdirectional control valve,
The other side is provided with connection and surges the third hydraulic fluid port A1 and the 4th hydraulic fluid port B1 of executive device, wherein the first hydraulic fluid port A by according to
First one-way throttle valve of secondary connection, the hydraulic lock are connected to the third hydraulic fluid port A1；The second hydraulic fluid port B passes through
Sequentially connected second one-way throttle valve, the hydraulic lock are connected to the 4th hydraulic fluid port B1；The 4th hydraulic fluid port B1
It is connected to by the oil circuit of sequentially connected first safety valve, second one-way throttle valve with the first hydraulic fluid port A；
The third hydraulic fluid port A1 passes through sequentially connected second safety valve, first one-way throttle valve and second oil
Mouth B connection
Preferably, each one-way throttle valve includes the throttle valve support base for being set to the valve inner, sliding
Be connected to the throttling valve base of throttle valve support base one end, be slidably connected to it is described throttling valve base in throttling valve core and
The adjusting screw being threadedly connected in the throttle valve support base, the circumferential surface of the throttling valve base is equipped with oil inlet, end face is set
There is restriction, the throttling valve core part is located in the throttling valve base, and the adjusting screw is abutted with the throttling valve core,
To adjust the throttling valve core at a distance from the restriction；
The oil inlet of two one-way throttle valves is correspondingly connected with the first hydraulic fluid port A, the second hydraulic fluid port B.
Preferably, the one-way throttle valve further includes throttling spring, one end of the throttling spring is connected to the section
Valve base is flowed, the other end is connected to the throttle valve support base.
Preferably, the hydraulic lock includes mandril, the middle part of the mandril forms protrusion, the protrusion fit closely in
The valve body, the two sides of the protrusion form two cavitys, two cavity one one-way throttle valves of corresponding connection, institute
The two sides for stating mandril are symmetrical arranged two hydraulic lock sets, and two hydraulic lock sets respectively correspond the connection third hydraulic fluid port
A1, the 4th hydraulic fluid port B1.
Preferably, the hydraulic lock set includes hydraulic lock valve seat, hydraulic lock steel ball, hydraulic lock spring base, hydraulic lock
Spring and hydraulic lock support base, in which:
The hydraulic lock valve seat is provided with the oilhole being connected to the cavity, and the hydraulic lock spring base is set to the liquid
In pressure lock support base, one end of the hydraulic lock spring connects the hydraulic lock spring base, and the other end connects the hydraulic lock branch
Seat is supportted, the hydraulic lock steel ball can be pressed on the oilhole by the hydraulic lock spring base by the hydraulic lock spring；
The circumferential surface of the hydraulic lock support base is provided with oil outlet, two hydraulic locks of two hydraulic lock sets
The oil outlet of support base respectively corresponds the connection third hydraulic fluid port A1, the 4th hydraulic fluid port B1.
Preferably, the safety valve includes safety valve steel ball, safety valve spring, safety valve spring seat and safety valve support
Seat, in which:
The safety valve spring seat is slidably connected to the safety valve support base, and one end of the safety valve spring is connected to
The safety valve spring seat, the other end are connected to the safety valve support base, and the safety valve steel ball is set to the safety valve
Side of the spring base far from the safety valve spring, the end face of the hydraulic lock support base offer through-hole, the safety valve bullet
The safety valve steel ball is pressed on the through-hole by the safety valve spring seat by spring, and the safety valve support base is close to described
Oil return hole is offered on the circumferential surface of the side of hydraulic lock support base.
Preferably, the hydraulic lock system of complex function further includes being set to the third hydraulic fluid port A1 and the 4th oil
By-passing valve between mouth B1.
Preferably, the by-passing valve includes being slidably connected to the bypass spool of the valve body and being threadedly connected to the valve
The handwheel of body, the bypass spool are fixedly connected with the handwheel, by tightening the handwheel so that the bypass spool is isolated
The third hydraulic fluid port A1 and the 4th hydraulic fluid port B1.
The utility model has the beneficial effects that
There are two one-way throttle valve, two safety valves and a hydraulic locks in valve inner setting for the utility model, integrate
Degree is high, compact-sized.By the way that two one-way throttle valves are arranged, the flow velocity that two flow directions can be implemented separately is adjusted, can be independent
It adjusts and the movement velocity of the both direction of third hydraulic fluid port A1 and the 4th hydraulic fluid port the B1 executive device of surging being connected；Pass through setting
Hydraulic lock realizes the position retaining function to executive device of surging；It is realized by setting safety valve and dress is executed to surging of being connected
The safeguard protection effect set, the utility model is compounded with two one-way throttle valves, two safety valves and a hydraulic lock, functional
By force.
Detailed description of the invention
Fig. 1 is the hydraulic function graphical diagram of the hydraulic lock system of the utility model complex function；
Fig. 2 is the structural schematic diagram of the hydraulic lock system of the utility model complex function；
Fig. 3 is the cross-sectional view in the section C-C in Fig. 2；
Fig. 4 is the cross-sectional view in the section D-D in Fig. 2；
Fig. 5 is oil of the hydraulic lock system of the utility model complex function in the first hydraulic fluid port A oil inlet, the second hydraulic fluid port B oil return
Road schematic diagram.
In figure:
1, valve body；
2, one-way throttle valve；21, throttle valve support base；22, throttle valve base；23, throttling valve core；24, screw is adjusted；
25, throttle spring；
3, hydraulic lock；31, mandril；32, hydraulic lock set；321, hydraulic lock valve seat；322, hydraulic lock steel ball；323, hydraulic
Lock spring base；324, hydraulic lock spring；325, hydraulic lock support base；3251, through-hole；
4, safety valve；41, safety valve steel ball；42, safety valve spring；43, safety valve spring seat；44, safety valve support base；
5, by-passing valve；51, spool is bypassed；52, handwheel.
Specific embodiment
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
The utility model provides a kind of hydraulic lock system of complex function, and as depicted in figs. 1 and 2, the complex function is hydraulic
Lock system includes valve body 1, and valve body 1 is internally provided with two one-way throttle valves, 2, two safety valves 4 and a hydraulic lock 3, valve body 1
Side be provided with the first hydraulic fluid port A and the second hydraulic fluid port B of connection hydraulicdirectional control valve, the other side is provided with connection and surges executive device
Third hydraulic fluid port A1 and the 4th hydraulic fluid port B1, wherein the first hydraulic fluid port A passes through sequentially connected first one-way throttle valve 2, hydraulic lock
3 are connected to third hydraulic fluid port A1；Second hydraulic fluid port B passes through sequentially connected second one-way throttle valve 2, hydraulic lock 3 and the 4th hydraulic fluid port
B1 connection；4th hydraulic fluid port B1 passes through the oil circuit of 4, second one-way throttle valves 2 of sequentially connected first safety valve and the first oil
Mouth A connection；Third hydraulic fluid port A1 is connected by 4, first one-way throttle valves 2 of sequentially connected second safety valve and the second hydraulic fluid port B
It is logical.By being internally provided with two one-way throttle valves, 2, two safety valves 4 and a hydraulic lock 3 in valve body 1, integrated level is high, knot
Structure is compact, functional.
The flow velocity of two flow directions can be implemented separately by two one-way throttle valves 2 of setting in the hydraulic lock system of complex function
It adjusts, can individually adjust and the movement of the both direction of third hydraulic fluid port A1 and the 4th hydraulic fluid port the B1 executive device of surging being connected
Speed.Specifically, as shown in Fig. 2, each one-way throttle valve 2 includes being set to throttle valve support base 21 valve body 1 inside, sliding
Be connected to the throttling valve base 22 of 21 one end of throttle valve support base, be slidably connected to throttling valve base 22 in throttling valve core 23 and
The adjusting screw 24 being threadedly connected in throttle valve support base 21, the circumferential surface of throttling valve base 22 is equipped with oil inlet, end face is equipped with
Restriction, 23 part of throttling valve core are located in throttling valve base 22, adjust screw 24 and abut with throttling valve core 23, to adjust throttling
Spool 23 is at a distance from restriction；The oil inlet of two one-way throttle valves 2 is correspondingly connected with the first hydraulic fluid port A, the second hydraulic fluid port B.Unidirectionally
Throttle valve 2 further includes throttling spring 25, and one end of throttling spring 25 is connected to throttling valve base 22, and the other end is connected to throttle valve
Support base 21.
By taking the second hydraulic fluid port B oil inlet as an example, pressure oil enters through the second hydraulic fluid port B, through throttling valve base 22 circumferential surface into
Hydraulic fluid port enters in throttling valve base 22, and the restriction by being set to throttling 22 end face of valve base flows into the oil inside valve body 1
Lu Zhong；By adjusting tightening degree and adjusting throttling valve core 23 at a distance from restriction for screw 24, can change indirectly
The size of restriction, to adjust the oil inlet speed of the second hydraulic fluid port B.When the second hydraulic fluid port B oil inlet, correspondingly, the first hydraulic fluid port A is same
When oil return, at this point, pressure oil act on throttling valve base 22 end face, overcome throttling spring 25 active force, make throttle valve valve
The contact surface of valve body 1 is left in the end face of seat 22, and pressure oil flows to the first hydraulic fluid port through the gap between throttling valve base 22 and valve body 1
A。
The hydraulic lock system of the complex function realizes the position retaining function to executive device of surging by setting hydraulic lock 3.
Specifically, as shown in Figures 2 and 3, hydraulic lock 3 includes mandril 31, and the middle part of mandril 31 forms protrusion, and protrusion is fitted closely in valve
Body 1, raised two sides form two cavitys, and two cavity one one-way throttle valves 2 of corresponding connection, the two sides of mandril 31 are symmetrically set
Two hydraulic lock sets 32 are set, two hydraulic lock sets 32 respectively correspond connection third hydraulic fluid port A1 or the 4th hydraulic fluid port B1.Hydraulic lock
Component 32 includes hydraulic lock valve seat 321, hydraulic lock steel ball 322, hydraulic lock spring base 323, hydraulic lock spring 324 and hydraulic lock branch
Support seat 325, in which: hydraulic lock valve seat 321 is provided with the oilhole being connected to cavity, and hydraulic lock spring base 323 is set to hydraulic lock
In support base 325, one end of hydraulic lock spring 324 connects hydraulic lock spring base 323, and the other end connects hydraulic lock support base 325,
Hydraulic lock steel ball 322 can be pressed on oilhole by hydraulic lock spring base 323 by hydraulic lock spring 324；Hydraulic lock support base 325
Circumferential surface be provided with oil outlet, the oil outlet of two hydraulic lock support bases 325 of two hydraulic lock sets 32 respectively corresponds connection
Third hydraulic fluid port A1, the 4th hydraulic fluid port B1.
Immediately when above-mentioned second hydraulic fluid port B oil inlet the case where, pressure oil are right into mandril 31 after the outflow of one-way throttle valve 2
In the cavity of side (side of the close one-way throttle valve 2 being connected with the second hydraulic fluid port B), the hydraulic lock set 32 on right side is moved through
Journey is as follows: pressure oil passes through the oilhole on hydraulic lock valve seat 321 and applies active force to hydraulic lock steel ball 322, makes hydraulic lock steel
Ball 322 is mobile to the direction far from hydraulic lock valve seat 321, forms gap between hydraulic lock steel ball 322 and hydraulic lock valve seat 321 and uses
Pass through in pressure oil, the pressure oil after flows out to the 4th hydraulic fluid port B1 through the oil outlet on 325 circumferential surface of hydraulic lock support base；Together
When, pressure oil applies active force to the left while applying active force to hydraulic lock steel ball 322, to the protrusion of mandril 31, left
The motion process of the hydraulic lock set 32 of side is as follows: mandril 31 opens hydraulic lock steel ball 322 to the left, hydraulic lock steel ball 322 with
Gap is formed between hydraulic lock valve seat 321, the pressure oil at third hydraulic fluid port A1 is by fuel-displaced on 325 circumferential surface of hydraulic lock support base
Mouth and the gap between hydraulic lock steel ball 322 and hydraulic lock valve seat 321 flow out to the cavity in left side, and flow to and the first hydraulic fluid port
A connected one-way throttle valve 2, oil return of oil return process of the pressure oil in one-way throttle valve 2 referring to aforementioned first hydraulic fluid port A
Journey.
The hydraulic lock system of the complex function is realized by setting safety valve 4 and is protected to the safety for the executive device of surging being connected
Shield effect.Specifically, as shown in Figures 2 and 3, safety valve 4 includes safety valve steel ball 41, safety valve spring 42, safety valve spring
Seat 43 and safety valve support base 44, in which: safety valve spring seat 43 is slidably connected to safety valve support base 44, safety valve spring 42
One end be connected to safety valve spring seat 43, the other end is connected to safety valve support base 44, and safety valve steel ball 41 is set to safety
Side of the valve spring retainer 43 far from safety valve spring 42, the end face of hydraulic lock support base 325 offer through-hole 3251, safety valve bullet
Safety valve steel ball 41 is pressed on through-hole 3251 by safety valve spring seat 43 by spring 42, and safety valve support base 44 is close to hydraulic lock branch
It supports and offers oil return hole on the circumferential surface of the side of seat 325.
Equally by taking the second hydraulic fluid port B oil inlet as an example, after pressure oil enters in the hydraulic package 32 on right side, if the 4th hydraulic fluid port B1
It is excessive to locate oil pressure, (safety valve steel ball 41 is pressed on hydraulic lock support base by safety valve spring 42 more than the setting value of safety valve 4
The through-hole 3251 of 325 end faces is more than safety valve spring 42 more than active force of the setting value, that is, pressure oil to safety valve steel ball 41
Pressing force), pressure oil enters hydraulic lock support base 325 and safety valve after opening safety valve steel ball 41 and safety valve spring seat 43
Gap between spring base 43, safety valve support base 44 offer oil return on the circumferential surface of the side of hydraulic lock support base 325
Hole, pressure oil return to the first hydraulic fluid port A by oil circuit from oil return hole.The oil return process of pressure oil is specially (referring to Fig. 3): safety valve
Oil return hole on support base 44 passes through the cavity of the oil communication inside valve body 1 to the left side of hydraulic lock 3, and flows to and the first oil
Mouth A connected one-way throttle valve 2, and the first hydraulic fluid port A is flow to through one-way throttle valve 2.
As shown in Figure 2 and Figure 4, the hydraulic lock system of the complex function further includes being set to third hydraulic fluid port A1 and the 4th hydraulic fluid port B1
Between by-passing valve 5.Specifically, by-passing valve 5 includes being slidably connected to the bypass spool 51 of valve body 1 and being threadedly connected to valve body 1
Handwheel 52, bypass spool 51 be fixedly connected with handwheel 52, by tighten handwheel 52 so that bypass spool 51 isolation third hydraulic fluid port
A1 and the 4th hydraulic fluid port B1.By unscrewing handwheel 52, bypass spool 51 to mobile close to the direction of handwheel 52, make third hydraulic fluid port A1 and
Oil communication between 4th hydraulic fluid port B1, by the way that by-passing valve 5 is arranged, what realization was connected to third hydraulic fluid port A1 and the 4th hydraulic fluid port B1
The bypass operations function for executive device of surging.
Aforementioned process is with the second hydraulic fluid port B oil inlet (the first hydraulic fluid port A and third hydraulic fluid port A1 oil return, the 4th hydraulic fluid port B1 oil inlet at this time)
For be described, on the contrary, the hydraulic lock system of the complex function can also be from the first hydraulic fluid port A oil inlet, as shown in figure 5, thick in Fig. 5
Solid line and arrow illustrate the trend of oil circuit at this time, and the pressure oil that the first hydraulic fluid port A enters is after the throttling action of one-way throttle valve 2
It is flow to third hydraulic fluid port A1 through hydraulic lock 3, the pressure oil of the 4th hydraulic fluid port B1 flow to second through one-way throttle valve 2 through 3 oil return of hydraulic lock
Hydraulic fluid port B (at this time without throttling), when the oil pressure at third hydraulic fluid port A1 is excessive, extra pressure oil flow to the through safety valve 4
Two hydraulic fluid port B.
Obviously, the above embodiments of the present invention is used for the purpose of clearly illustrating examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in
Within the protection scope of the utility model claims.
Claims (8)
1. a kind of hydraulic lock system of complex function, including valve body (1), which is characterized in that the valve body (1) is internally provided with two
One-way throttle valve (2), two safety valves (4) and a hydraulic lock (3), the side of the valve body (1), which is provided with, connects hydraulic change
To the first hydraulic fluid port A and the second hydraulic fluid port B of valve, the other side is provided with the third hydraulic fluid port A1 and the 4th hydraulic fluid port for connecting executive device of surging
B1, wherein the first hydraulic fluid port A passes through sequentially connected first one-way throttle valve (2), the hydraulic lock (3) and institute
State third hydraulic fluid port A1 connection；The second hydraulic fluid port B passes through sequentially connected second one-way throttle valve (2), described hydraulic
Lock (3) is connected to the 4th hydraulic fluid port B1；The 4th hydraulic fluid port B1 passes through sequentially connected first safety valve (4), the
The oil circuit of two one-way throttle valves (2) is connected to the first hydraulic fluid port A；The third hydraulic fluid port A1 passes through sequentially connected the
Two safety valves (4), first one-way throttle valve (2) are connected to the second hydraulic fluid port B.
2. the hydraulic lock system of complex function according to claim 1, which is characterized in that each one-way throttle valve (2)
Including being set to the internal throttle valve support base (21) of the valve body (1), being slidably connected to the throttle valve support base (21) one
The throttling valve base (22) at end is slidably connected to the throttling valve core (23) to throttle in valve base (22) and is threadedly connected to institute
The adjusting screw (24) in throttle valve support base (21) is stated, the circumferential surface of throttling valve base (22) is equipped with oil inlet, end face is set
Have a restriction, it is interior that the throttling valve core (23) is partially located at the throttling valve base (22), the adjusting screw (24) with it is described
Throttling valve core (23) abuts, to adjust the throttling valve core (23) at a distance from the restriction；
The oil inlet of two one-way throttle valves (2) is correspondingly connected with the first hydraulic fluid port A, the second hydraulic fluid port B.
3. the hydraulic lock system of complex function according to claim 2, which is characterized in that the one-way throttle valve (2) is also wrapped
Throttling spring (25) is included, one end of throttling spring (25) is connected to the throttling valve base (22), and the other end is connected to institute
State throttle valve support base (21).
4. the hydraulic lock system of complex function according to claim 1, which is characterized in that the hydraulic lock (3) includes mandril
(31), the middle part of the mandril (31) forms protrusion, and the protrusion is fitted closely in the valve body (1), the two sides of the protrusion
Two cavitys are formed, two cavitys are corresponding to be connected to the one-way throttle valves (2), and the two sides of the mandril (31) are symmetrical
Two hydraulic lock sets (32) are set, and two hydraulic lock sets (32) respectively correspond the connection third hydraulic fluid port A1, described
4th hydraulic fluid port B1.
5. the hydraulic lock system of complex function according to claim 4, which is characterized in that the hydraulic lock set (32) includes
Hydraulic lock valve seat (321), hydraulic lock steel ball (322), hydraulic lock spring base (323), hydraulic lock spring (324) and hydraulic lock support
Seat (325), in which:
The hydraulic lock valve seat (321) is provided with the oilhole being connected to the cavity, and the hydraulic lock spring base (323) is set to
In the hydraulic lock support base (325), one end of the hydraulic lock spring (324) connects the hydraulic lock spring base (323), separately
One end connects the hydraulic lock support base (325), and the hydraulic lock spring (324) can pass through the hydraulic lock spring base
(323) the hydraulic lock steel ball (322) is pressed on into the oilhole；
The circumferential surface of the hydraulic lock support base (325) is provided with oil outlet, described in two of two hydraulic lock sets (32)
The oil outlet of hydraulic lock support base (325) respectively corresponds the connection third hydraulic fluid port A1, the 4th hydraulic fluid port B1.
6. the hydraulic lock system of complex function according to claim 5, which is characterized in that the safety valve (4) includes safety
Valve steel ball (41), safety valve spring (42), safety valve spring seat (43) and safety valve support base (44), in which:
The safety valve spring seat (43) is slidably connected to the safety valve support base (44), and the one of the safety valve spring (42)
End is connected to the safety valve spring seat (43), and the other end is connected to the safety valve support base (44), the safety valve steel ball
(41) side of the safety valve spring seat (43) far from the safety valve spring (42), the hydraulic lock support base are set to
(325) end face offers through-hole (3251), and the safety valve spring (42) will be described by the safety valve spring seat (43)
Safety valve steel ball (41) presses on the through-hole (3251), and the safety valve support base (44) is close to the hydraulic lock support base
(325) oil return hole is offered on the circumferential surface of side.
7. the hydraulic lock system of complex function according to claim 1, which is characterized in that the hydraulic lock system of complex function
It further include the by-passing valve (5) being set between the third hydraulic fluid port A1 and the 4th hydraulic fluid port B1.
8. the hydraulic lock system of complex function according to claim 7, which is characterized in that the by-passing valve (5) includes sliding
It is connected to the bypass spool (51) of the valve body (1) and is threadedly connected to the handwheel (52) of the valve body (1), the bypass spool
(51) it is fixedly connected with the handwheel (52), by tightening the handwheel (52) so that the bypass spool (51) is isolated described the
Three hydraulic fluid port A1 and the 4th hydraulic fluid port B1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820842495.6U CN208587341U (en) | 2018-06-01 | 2018-06-01 | A kind of hydraulic lock system of complex function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820842495.6U CN208587341U (en) | 2018-06-01 | 2018-06-01 | A kind of hydraulic lock system of complex function |
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| Publication Number | Publication Date |
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| CN208587341U true CN208587341U (en) | 2019-03-08 |
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ID=65534362
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820842495.6U Active CN208587341U (en) | 2018-06-01 | 2018-06-01 | A kind of hydraulic lock system of complex function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110499987A (en) * | 2019-09-24 | 2019-11-26 | 河北斯弗液压机械技术有限公司 | A kind of hydraulic well lid anti-pinch people lock |
| CN110513356A (en) * | 2019-09-09 | 2019-11-29 | 江西理工大学 | A kind of Kaplan oil circuit hydraulic lock control structure |
-
2018
- 2018-06-01 CN CN201820842495.6U patent/CN208587341U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513356A (en) * | 2019-09-09 | 2019-11-29 | 江西理工大学 | A kind of Kaplan oil circuit hydraulic lock control structure |
| CN110499987A (en) * | 2019-09-24 | 2019-11-26 | 河北斯弗液压机械技术有限公司 | A kind of hydraulic well lid anti-pinch people lock |
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