CN208702800U - A kind of hydraulic system and the hydraulic machine core of road block device - Google Patents
A kind of hydraulic system and the hydraulic machine core of road block device Download PDFInfo
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- CN208702800U CN208702800U CN201821306889.6U CN201821306889U CN208702800U CN 208702800 U CN208702800 U CN 208702800U CN 201821306889 U CN201821306889 U CN 201821306889U CN 208702800 U CN208702800 U CN 208702800U
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Abstract
The utility model belongs to hydraulic transmission technology technical field, refers in particular to a kind of hydraulic system and the hydraulic machine core of road block device comprising the hydraulic system.Component is connected to including fuel tank, hydraulic cylinder and for be connected to fuel tank and hydraulic cylinder, it is divided into the hydraulic cylinder by piston rod and stretches out chamber and reclaiming chamber, the connection component includes for being connected to fuel tank and the first passage of stretching chamber and the second channel for being connected to fuel tank and reclaiming chamber, a two-way pump is additionally provided between the first passage and second channel, by the outbound course for changing two-way pump, it can be respectively to the hydraulic oil energization in first passage and second channel, at least provided with a check valve on the first passage and second channel；One accumulator is installed on the first passage.The utility model beneficial effect is there is better pressure maintaining performance, can effectively prevent the decline of piston rod, and the function of power-off pressure release.
Description
Technical field
The utility model belongs to hydraulic transmission technology technical field, refers in particular to a kind of hydraulic system and comprising the hydraulic system
The hydraulic machine core of road block device.
Background technique
Currently, road block device is mainly used in customs, frontier inspection, logistics, prison, national treasury, military base and administration request department
The porte-cochere control of equal Code in Hazardous Special Locations；Effectively it can prevent vehicle from rushing card by force, by the limitation to vehicular traffic, effectively
The safety for having ensured traffic order i.e. key facility and place.In addition, the important unit gate installation such as government offices and army
Go up and down antirioting road barricades, can it is electronic, the modes such as be remotely controlled or swipe the card and control lifting, effectively other unit's vehicle is prevented to enter and illegal vehicle
It swarms into.
Typically ensure the locking of piston rod using check valve in the hydraulic system of existing road block device, but it is single
The leakage of its hydraulic oil can not be avoided to valve, may will lead to the decline of piston rod over time.It or is to use
It is powered off in journey because some bursts are unexpected, hydraulic system can not work, and can all be in the case where no recovery electric power
The state risen or fallen, it is very troublesome for actual use, it is also possible to will affect traffic.
Summary of the invention
The purpose of the utility model is to provide a kind of structure is simple, the good hydraulic system of pressure maintaining performance and road block device hydraulic press
Core.
Purpose of the utility model is realized as follows:
A kind of hydraulic system, including fuel tank, hydraulic cylinder and for being connected to be connected to component of the fuel tank with hydraulic cylinder, the liquid
It is divided into cylinder pressure by piston rod and stretches out chamber and reclaiming chamber, the connection component includes first for being connected to fuel tank and stretching chamber
Channel and the second channel for being connected to fuel tank and reclaiming chamber, it is two-way to be additionally provided with one between the first passage and second channel
Pump, by changing the outbound course of two-way pump, can respectively to the hydraulic oil energization in first passage and second channel, described first
At least provided with a check valve on channel and second channel；One accumulator is installed on the first passage.
Dual hydraulic control one-way valve is equipped between the first passage and second channel, dual hydraulic control one-way valve includes being arranged first
The second one-way valve of the first check valve on channel and setting on a second pass, first check valve and second one-way valve it
Between connected by control loop L.
Further, two-position two-way solenoid valve, the two-position two-way solenoid valve setting are additionally provided on the first passage
Between the accumulator and hydraulic cylinder.
Further, the dual hydraulic control one-way valve is additionally provided with hydraulic control one-way valve, the hydraulic control one-way valve by fuel tank side
Including third check valve and control loop K on the first pass is arranged.
Further, fast decompression valve, fast decompression valve are additionally provided between the dual hydraulic control one-way valve and hydraulic control one-way valve
Oil return line including connecting first passage and fuel tank, is provided with the liquid control pressure releasing valve manually controlled on oil return line.
Further, be provided with check valve and filter on the first passage and second channel, the check valve and
Filter is arranged between two-way pump and fuel tank.
Further, the both ends exit of the two-way pump is provided with relief valve.
Further, the accumulator is a spring type mechanical accumulator.
A kind of hydraulic machine core of road block device, including pedestal are provided with the hydraulic system on the pedestal, also install on pedestal
Have and rise sleeve, decline sleeve and air compression sleeve, the air compression sleeve is set in rising cartridge exterior, decline set
Cylinder is set in outside air compression sleeve, makes to form stretching chamber in rising sleeve, between air compression sleeve and rising sleeve
Delivery air chamber is formed, declines and forms reclaiming chamber between sleeve and air compression sleeve；Sky is also provided on the pedestal
Gas channel, the delivery air chamber are tightly connected by air duct and the fuel tank.
Compared with the prior art, the utility model has prominent and beneficial technical effects that:
1. the hydraulic system in the utility model controls two main hydraulic flow paths with two-way pump, two primary flow paths flow respectively
The stretching chamber and withdrawal chamber of logical hydraulic cylinder are lived by changing the outbound course of two-way pump to drive the flexible of piston rod in control
It is provided with accumulator on the first passage that stopper rod stretches out, potential energy is converted for overpressure by accumulator and is stored, is needed
When discharge again, in piston rod after stretching by bigger impact when, part impact can be absorbed, accumulator also can
As an auxiliary power source, when check valve has the case where a small amount of oil leak to occur, compensate oil leak, prevent piston rod because of pressure not
Decline enough.
2. the utility model is equipped with two-position two-way solenoid valve in the inlet for stretching out chamber, two-position two-way solenoid valve it is another
End is directly connected to fuel tank by oil circuit, to complete the function of a pressure release, in normal operating conditions, two-position two-way solenoid valve category
In normally off, if the emergency situations powered off that have a power failure occur during the work time for hydraulic system, in general, two-way pump is with regard to nothing
Method work if piston rod is constantly in stretching state, is agreed to be unable to complete the flexible of piston rod for road block device
Surely there can be bigger influence to traffic.This product can give one telecommunications of solenoid valve by two-position two-way solenoid valve when power is off
Number, normally closed two-position two-way solenoid valve is opened, the hydraulic oil in oil circuit is connected to fuel tank, completes pressure release.
3. increasing dual hydraulic control one-way valve in hydraulic system, realized by the twin-lock locking structure of dual hydraulic control one-way valve entire
The locking of hydraulic structure also completes the function of two-way circulating while completing the function of locking, in the first check valve oil inlet
When the second one-way valve on second channel can be opened by the control loop that communicates therewith, emptying is completed, therefore, always the
When one channel energization, the check valve on the channel of the other end can also open emptying.
4. being also provided with hydraulic control one-way valve between dual hydraulic control one-way valve and fuel tank, the third check valve on hydraulic control one-way valve is set
Set in first passage, for piston rod stretch out when give first passage pressure maintaining, be the equal of dual pressure maintaining, prevent piston rod because
Oil leak and decline.
5. the hydraulic machine core of roadblock is telescopic machine core, the space after being arranged by multiple and different sleeves forms stretching
Chamber withdraws chamber and delivery air chamber, and one end of delivery air chamber is connected to by air duct with fuel tank, uses in hydraulic system
When, two-way pump can pump in fuel tank, and in order to make up the hydraulic oil taken away, fuel tank needs to suck air from outside, by with oil
The delivery air chamber of case connection, fuel tank directly can take in air out of compressed air room, keep piston rod unlikely in ascending motion
In in addition sucking air, when piston rod declines, air returns to delivery air chamber again.
Detailed description of the invention
Fig. 1 is the hydraulic system element figure of the utility model.
Fig. 2 is dual hydraulic control one-way valve element enlarged drawing.
Fig. 3 is fluid-control one-way valve components enlarged drawing.
The hydraulic cylinder schematic diagram of the hydraulic machine core of Fig. 4 roadblock.
Fig. 5 is the enlarged drawing of hydraulic structure at A in Fig. 4.
Fig. 6 is the usage state diagram of the hydraulic machine core of roadblock.
Meaning represented by figure label:
1- fuel tank；2- hydraulic cylinder；3- piston rod；4- stretches out chamber；5- reclaiming chamber；6- first passage；
7- second channel；8- two-way pump；9- accumulator；10- two-position two-way solenoid valve；
11- dual hydraulic control one-way valve；The first check valve of 12-；13- second one-way valve；14- control loop L；
15- hydraulic control one-way valve；16- third check valve；17- control loop K；18- filter；
19- check valve；20- relief valve；21- delivery air chamber；29- pedestal；30- rises sleeve；
31- declines sleeve；32- air compression sleeve；33- air duct；40- fast decompression valve.
Specific embodiment
The utility model is further described combined with specific embodiments below:
A kind of hydraulic system, including fuel tank 1, hydraulic cylinder 2 and for being connected to be connected to component of the fuel tank 1 with hydraulic cylinder 2, institute
It states in hydraulic cylinder 2 and is divided by piston rod 3 to stretch out chamber 4 and reclaiming chamber 5, the connection component includes for being connected to fuel tank 1 and stretching
The first passage 6 of chamber 4 and the second channel 7 for being connected to fuel tank 1 and reclaiming chamber 5, the first passage 6 and second channel 7 out
Between be additionally provided with a two-way pump 8, can be respectively in first passage 6 and second channel 7 by changing the outbound course of two-way pump 8
Hydraulic oil energization, at least provided with a check valve 19 on the first passage 6 and second channel 7；The first passage
On an accumulator 9 is installed.
Hydraulic system in the utility model controls two main hydraulic flow paths with two-way pump 8, and two primary flow paths flow respectively
The stretching chamber 4 and withdrawal chamber 5 of logical hydraulic cylinder 2 are being controlled by changing the outbound course of two-way pump 8 to drive the flexible of piston rod 3
It is provided with accumulator 9 on the first passage 6 that piston rod 3 processed stretches out, potential energy is converted for overpressure by accumulator 9 and is stored
Come, discharged again when needing, in piston rod 3 after stretching by bigger impact when, can absorb part impact, accumulation of energy
Device 9 can be used as an auxiliary power source, when check valve has the case where a small amount of oil leak to occur, compensates oil leak, prevents piston
Bar 3 declines because of insufficient pressure.
Preferably, two-position two-way solenoid valve 10 is additionally provided on the first passage 6, the two-position two-way solenoid valve 10 is set
It sets between the accumulator 9 and hydraulic cylinder 10.
The utility model is equipped with two-position two-way solenoid valve 10 in the inlet for stretching out chamber 4, two-position two-way solenoid valve 10
The other end is directly connected to fuel tank 1 by oil circuit, to complete the function of a pressure release, in normal operating conditions, and bi-bit bi-pass electricity
Magnet valve 10 belongs to normally off, in general, double if the emergency situations powered off that have a power failure occur during the work time for hydraulic system
It can not just work to pump 8, so that it is unable to complete the flexible of piston rod 3, if piston rod 3 is constantly in stretching state, for
It is certain to have bigger influence to traffic for traffic.The utility model can be given when power is off by two-position two-way solenoid valve 10
One electric signal of solenoid valve, normally closed two-position two-way solenoid valve 10 is opened, the hydraulic oil in oil circuit is connected to fuel tank, is completed
Pressure release.
Preferably, dual hydraulic control one-way valve 11, dual hydraulic control one-way valve 11 are equipped between the first passage 6 and second channel 7
Including the first check valve 12 being arranged on first passage 6 and setting on a second pass 7 second one-way valve 13, described first
It is connected between check valve 12 and second one-way valve 13 by control loop L14.
Dual hydraulic control one-way valve 11 is increased in hydraulic system, is realized by the twin-lock locking structure of dual hydraulic control one-way valve 11 whole
The locking of a hydraulic structure also completes the function of two-way circulating while completing the function of locking, in the first check valve 12
The second one-way valve 13 on second channel 7 can be opened by the control loop L14 communicated therewith when oil inlet, complete emptying, with
This, always in a channel energization, the check valve on the channel of the other end will open emptying.
Preferably, the dual hydraulic control one-way valve 11 is additionally provided with hydraulic control one-way valve 15, the fluid-control one-way by 1 side of fuel tank
Valve 15 includes the third check valve 16 and control loop K17 being arranged on first passage 6.
Dual hydraulic control one-way valve 11 is also provided with hydraulic control one-way valve 15, the third on hydraulic control one-way valve 15 between fuel tank 1
Check valve 16 is arranged in first passage 6, is the equal of dual guarantor for giving first passage 6 pressure maintaining when piston rod 3 stretches out
Pressure, prevents piston rod 3 from declining because of oil leak.
Preferably, it is additionally provided with fast decompression valve 40 between the dual hydraulic control one-way valve 11 and hydraulic control one-way valve 15, quickly let out
Pressure valve 40 includes the oil return line of connection first passage 6 and fuel tank 1, is provided with the liquid control pressure releasing valve manually controlled on oil return line.It is logical
It crosses and manually adjusts liquid control pressure releasing valve the hydraulic oil in first passage 6 is made to be quickly returning to fuel tank, complete quick emptying.
Preferably, it is provided with check valve 19 and filter 18 on the first passage 6 and second channel 7, it is described unidirectional
Valve 19 and filter 18 are arranged between two-way pump 8 and fuel tank 1.
Preferably, the both ends exit of the two-way pump 8 is provided with relief valve 20.
Preferably, the accumulator 9 is a spring type mechanical accumulator.
A kind of hydraulic machine core of road block device, including pedestal 29, are provided with the hydraulic system on the pedestal 29, on pedestal 29
It is also equipped with rising sleeve 30, decline sleeve 31 and air compression sleeve 32, the air compression sleeve 32 and is set in rising
Outside sleeve 30, decline sleeve 31 is set in outside air compression sleeve 32, is made to rise in sleeve 30 to form and is stretched out chamber 4, empty
Delivery air chamber 21 is formed between gas compression sleeve 32 and rising sleeve 30, is declined between sleeve 31 and air compression sleeve 32
Form reclaiming chamber 5；Be also provided with air duct 33 on the pedestal 29, the delivery air chamber 21 by air duct 33 with
The fuel tank 1 is tightly connected.(it is divided into machine core according to 3 bar of piston and stretches out chamber 4 and reclaiming chamber 5, stretched out chamber 4 and be arranged in piston rod 3
Lower part, connect high pressure oil, the upward pushing piston-rod 3 of high pressure oil completes work when work；Piston rod 3 is arranged in reclaiming chamber 5
Hydraulic oil decompression in chamber 4 when pressure release, is stretched out, reclaiming chamber 5 is pressurized, and makes machine by connecting in a through-hole and decline sleeve 31 in top
Core recycling.)
The hydraulic machine core of the roadblock of the utility model is telescopic machine core, the space molding after being arranged by multiple and different sleeves
Having and stretches out chamber 4, withdraws chamber 5 and delivery air chamber 21, one end of delivery air chamber 21 is connected to by air duct 33 with fuel tank 1,
In hydraulic system in use, two-way pump 8 can pump in fuel tank 1, in order to make up the space for the hydraulic oil taken away, fuel tank 1 needs
Air is sucked from outside, by the delivery air chamber 21 connecting with fuel tank 1, fuel tank 1 can directly be taken in out of delivery air chamber 21
Air makes piston rod 3 be unlikely in addition to suck air in ascending motion, and when piston rod declines, air returns to compression again
Air chamber 21 flows out to also prevent hydraulic oil from fuel tank 1.
Above-described embodiment is only the preferred embodiment of the utility model, not limits the protection model of the utility model according to this
It encloses, therefore: the equivalence changes that all structures, shape, principle according to the utility model are done should all be covered by the protection of the utility model
Within the scope of.
Claims (9)
1. a kind of hydraulic system, including fuel tank (1), hydraulic cylinder (2) and for being connected to being connected to for fuel tank (1) and hydraulic cylinder (2)
Component, it is characterised in that: be divided into the hydraulic cylinder (2) by piston rod (3) and stretch out chamber (4) and reclaiming chamber (5), the connection
Component includes for being connected to fuel tank (1) with the first passage (6) for stretching out chamber (4) and for being connected to fuel tank (1) and reclaiming chamber (5)
Second channel (7), be additionally provided with a two-way pump (8) between the first passage (6) and second channel (7), by change it is two-way
The outbound course for pumping (8), can give the hydraulic oil energization in first passage (6) and second channel (7), the first passage respectively
(6) accumulator (9) are installed on；Dual hydraulic control one-way valve (11) are equipped between the first passage (6) and second channel (7).
2. a kind of hydraulic system according to claim 1, it is characterised in that: be additionally provided with two on the first passage (6)
Position two-way electromagnetic valve (10), the two-position two-way solenoid valve (10) are arranged between the accumulator (9) and hydraulic cylinder (2).
3. a kind of hydraulic system according to claim 1 or 2, it is characterised in that: the dual hydraulic control one-way valve (11) includes
It is arranged in the first check valve (12) on first passage (6) and second one-way valve (13) on second channel (7) is set, it is described
It is connected between first check valve (12) and second one-way valve (13) by control loop L (14).
4. a kind of hydraulic system according to claim 3, it is characterised in that: the dual hydraulic control one-way valve (11) leans on fuel tank
(1) side is additionally provided with hydraulic control one-way valve (15), and the hydraulic control one-way valve (15) includes the third list being arranged on first passage (6)
To valve (16) and control loop K (17).
5. a kind of hydraulic system according to claim 4, it is characterised in that: the dual hydraulic control one-way valve (11) and hydraulic control list
To fast decompression valve (40) are additionally provided between valve (15), fast decompression valve (40) includes connection first passage (6) and fuel tank (1)
Oil return line is provided with the liquid control pressure releasing valve manually controlled on oil return line.
6. a kind of hydraulic system according to claim 5, it is characterised in that: the first passage (6) and second channel (7)
On be provided with check valve (19) and filter (18), the check valve (19) and filter (18) setting two-way pump (8) with
Between fuel tank (1).
7. a kind of hydraulic system according to claim 6, it is characterised in that: the both ends exit of the two-way pump (8) is equal
It is provided with relief valve (20).
8. a kind of hydraulic system according to claim 7, it is characterised in that: the accumulator (9) is a spring type mechanical accumulator.
9. a kind of hydraulic machine core of road block device, including pedestal (29), it is characterised in that: be arranged on the pedestal (29) and wanted just like right
Any one of 1-8 hydraulic system is sought, is also equipped on pedestal (29) and rises sleeve (30), decline sleeve (31) and air pressure
Contracting sleeve (32), the air compression sleeve (32), which is set in, rises sleeve (30) outside, and decline sleeve (31) is set in air
Compression sleeve (32) outside makes to rise to form in sleeve (30) and stretches out chamber (4), air compression sleeve (32) and rising sleeve
(30) it is formed between delivery air chamber (21), declines and form reclaiming chamber between sleeve (31) and air compression sleeve (32)
(5)；It is also provided with air duct (33) on the pedestal (29), the delivery air chamber (21) passes through air duct (33) and institute
State fuel tank (1) sealed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821306889.6U CN208702800U (en) | 2018-08-14 | 2018-08-14 | A kind of hydraulic system and the hydraulic machine core of road block device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821306889.6U CN208702800U (en) | 2018-08-14 | 2018-08-14 | A kind of hydraulic system and the hydraulic machine core of road block device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208702800U true CN208702800U (en) | 2019-04-05 |
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ID=65942269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821306889.6U Active CN208702800U (en) | 2018-08-14 | 2018-08-14 | A kind of hydraulic system and the hydraulic machine core of road block device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208702800U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374958A (en) * | 2019-08-23 | 2019-10-25 | 天津优瑞纳斯液压机械有限公司 | Accumulator and hydraulic cylinder set composite |
-
2018
- 2018-08-14 CN CN201821306889.6U patent/CN208702800U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374958A (en) * | 2019-08-23 | 2019-10-25 | 天津优瑞纳斯液压机械有限公司 | Accumulator and hydraulic cylinder set composite |
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