CN104389946B - Active hydraulic damping device with variable cavity - Google Patents
Active hydraulic damping device with variable cavity Download PDFInfo
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- CN104389946B CN104389946B CN201410462378.3A CN201410462378A CN104389946B CN 104389946 B CN104389946 B CN 104389946B CN 201410462378 A CN201410462378 A CN 201410462378A CN 104389946 B CN104389946 B CN 104389946B
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- cavity
- elastic telescopic
- sleeve pipe
- pedestal
- hydraulic
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2230/00—Purpose; Design features
- F16F2230/08—Sensor arrangement
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2230/00—Purpose; Design features
- F16F2230/24—Detecting or preventing malfunction, e.g. fail safe
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention relates to an active hydraulic damping device with a variable cavity. On the basis of the hydraulic principle, at least one hydraulic rod (3) is designed; the hydraulic rods (3) are designed by adopting an array distribution type structure; the simultaneous effect of the multiple hydraulic rods (3) and the damping effect are achieved; hard parts are prevented from being in direct contact; an elastic telescopic cavity body is introduced; active backflow of liquid is achieved; an elastic telescopic bag (4) is designed to be communicated with the hydraulic rods (3) to work; the excellent damping effect is achieved, and meanwhile work loads of a hard part structure can be effectively reduced; the service life of the hard parts is ensured; the hydraulic feedback speed and strength of the hydraulic rods (3) are greatly reduced; the damping effect is truly achieved; and the damage of oscillation to an object is avoided.
Description
Technical field
The invention belongs to hydraulic shock-absorption equipment technical field, more particularly to a kind of cavity type variable active hydraulic damping device.
Background technology
Amortisseur is mainly used to the concussion suppressing object to produce in moving process, reduce or stop the damage that concussion is brought to object, existing amortisseur is to realize shock-absorbing function by spring, when there is height fall in uneven road surface or moving process, suppression to concussion is reached by the retractility of spring, it is to avoid concussion brings damage directly to object.
In prior art, patent application document 201310446394.9, disclose a kind of amortisseur, including antivibrator cylinder and piston component, it is coated at antivibrator cylinder and the piston rod of piston component is provided with damping spring, it is coated at piston rod and is provided with elastomeric damper member between damping spring and piston rod, isolate between elastomeric damper member and damping spring；When the present invention can make elastomeric damper member be subject to impact that compression-expansion occurs, will not contact with damping spring, it is prevented effectively from damping spring and failure by shear is caused to elastomeric damper member, ensure the service life of elastomeric damper member, and elastomeric damper member can be made when impacting to be gradually increased rigidity, gently excessive, and then eliminate impact；It is capable of the deformation quantity of effective control elastomeric damper member it is ensured that the maximum functional stroke of amortisseur, it is to avoid the fault such as interfere, by increasing capacitance it is possible to increase impact resistance and maximum load, increase security reliability, this inventive structure is simple, easily manufactured, with low cost；Found out by above technology, this amortisseur is to make improvement based on spring, make full use of the elastic telescopic of spring, but a lot of shortcomings are had as amortisseur using spring, spring is when there is telescopic variation in itself, spring itself also has reciprocating motion, and this reciprocating feedback can be very fast, spring initially occurs the degree of telescopic variation bigger, reciprocating motion below is stronger, although so avoiding concussion and acting directly on object, multiple reciprocating motion but can act on object completely；Secondly, using spring as amortisseur, spring is directly as the hardware extensible member in shock absorbing process, it is that a kind of direct hardware is contacted with hardware, so damping effect will accordingly be affected it is impossible to provide preferable damping effect, it could even be possible to itself is damaged in use；Further, the selection for spring is a difficult point of shock absorber design, and spring is too soft or too hard, all possibly cannot realize shock-absorbing function, hinder the normal work of amortisseur.
Due to the various shortcoming of spring, designer is directed to damping device and has carried out design improvement, such as number of patent application again：200710105203.7，Disclose a kind of hydraulic damper,It is configured to carry out damping by controlling the flow of the oil within filling hydraulic damper to the shock of the object from such as door，Wherein，Hydraulic damper includes circle tube cylinder guide member、Cylinder body、Bar、Piston and control device，Circle tube cylinder guide member has a unlimited side,And cylinder body is formed as can be inserted into the drum optionally to move back and forth in described cylinder body guide member according to the contact with object，Bar has leading section and the rearward end being supported at the inner surface of cylinder body guide member in insertion cylinder body，Piston arranges the leading section of bar,And be formed as separating the inside of cylinder body to control the oily flow in cylinder interior，Control device moves back and forth along bar,Wherein bar passes through control device from the rear portion of piston，Control device be formed as by the interior part of cylinder body every the back space to be selectively controlled in piston rear portion volume.Above technical scheme is in application process, although eliminating the deficiency that spring is brought, but pressure is gathered in cylinder body all the time, buffered further insufficient for pressure, so when this amortisseur is in the face of huge pressure it is easy to cause the damage of equipment of itself, or it is not enough to provide optimum damping effect, therefore, also number of patent application：201320288923.2, disclose double containment hydraulic damper, including piston rod, oil drum, working cylinder and guide holder, it is provided with U-shaped sealing ring in described guide holder, described U-shaped sealing ring covers the cooperation that slides axially on the piston rod with piston rod, the middle part of described working cylinder is fixedly installed a retainer ring, it is fixedly installed spring in described piston upper and lower surface, described guide holder lower surface is concave spherical surface, it is provided with the oil sealing of turnup structure between described guide holder and piston rod, described working cylinder is made up of the first different cylinder body of diameter and the second cylinder body, it is provided with changeover portion between first cylinder body and the second cylinder body, with respect to prior art, this technical scheme is not only simple in structure, it is readily produced, and strengthen damping effect.But the thinking for above prior art, can find that this technical scheme above equally exists deficiency, though introducing dual chamber concept, but the buffering cavity in this dual chamber belongs to non-deformable cavity, for in practical application, buffering course is then completely dependent on the motion with piston rod, so that the movement of the wherein oil of storage, this technical scheme is in implementation process, all working is confined on piston rod, sports load and the intensity of piston rod will be greatly increased, more preferable damping effect equally can not be reached, and life-time service would detract from the service life of shock-absorption device.
Content of the invention
The purpose of the present invention is for overcoming the deficiencies in the prior art to provide a kind of cavity type variable active hydraulic damping device, the present invention uses hydraulic principle, introduce elastic telescopic cavity and array distributed structure, achievable liquid actively flows back, while guaranteeing damping effect, effectively reduce hardware configuration workload, improve the service life of hardware.
According to a kind of cavity type variable active hydraulic damping device proposed by the present invention, it includes top board, pedestal, elastic telescopic bag and at least one hydraulic stem；Each hydraulic stem array distribution is under the top plate between surface and pedestal upper surface；Wherein, it is provided with cavity in pedestal, elastic telescopic bag is arranged in cavity, elastic telescopic bag is provided with unique aperture, in each hydraulic stem, the end of fluid injection cavity is provided with through hole, through hole on each hydraulic stem connecting water pipe respectively, each water pipe converges to a water pipe after passing through pedestal upper surface, and this water pipe is tightly connected with the perforate on elastic telescopic bag；And the volume of cavity is more than the maximum swelling volume of elastic telescopic bag, the volume sum in fluid injection cavity in volume when elastic telescopic bag is unexpanded and all hydraulic bar is less than or equal to the maximum swelling volume of elastic telescopic bag.
The further preferred version of the present invention is：Described each hydraulic stem includes sleeve pipe and motion bar respectively, wherein, one end of sleeve pipe is provided with opening, one end of motion bar is stretched in sleeve pipe and can be moved in sleeve pipe along this opening, and the external diameter of this end of motion bar is adapted with the internal diameter of sleeve pipe, injection liquid in sleeve pipe, the other end of motion bar is connected with top board lower surface, on sleeve pipe, the other end relative with opening place end is connected with pedestal upper surface, and described through hole is arranged on this end of sleeve pipe, volume sum in volume when elastic telescopic bag is unexpanded and all sleeve pipes is less than or equal to the maximum swelling volume of elastic telescopic bag；
The internal diameter of described through hole is 1/5th of casing inner diameter；
Stretch on described motion bar and rubber sleeve is also included on the one end in described sleeve pipe；
Described cavity type variable active hydraulic damping device also includes being sequentially connected the power supply connecing, water sensor and alarm device, water sensor is arranged on the bottom surface of described pedestal internal cavity, power supply and alarm device are arranged on the outer surface of pedestal, and cavity is provided with active open on side one of on pedestal；
Described power supply is button cell；Described alarm device is audible-visual annunciator.
Compared with prior art its remarkable advantage is the present invention：
（1）The cavity type variable active hydraulic damping device of present invention design, based on hydraulic principle, at least one hydraulic stem of design, each hydraulic stem is designed using array distributed structure, realize many hydraulic stems to act on simultaneously, realize damping effect, avoid the directly contact between hardware, and introduce elastic telescopic cavity, realize liquid actively to flow back, i.e. the flexible bag of design flexibility is connected with each hydraulic stem and is operated, reduce working strength and the workload of hydraulic stem, ensure that the service life of hydraulic stem, and greatly reduce the speed of hydraulic pressure feedback and dynamics in hydraulic stem, it has been truly realized cushioning effect, avoid shaking the damage being brought to object；
（2）In the cavity type variable active hydraulic damping device of present invention design, the detailed construction for hydraulic stem specific design, total is succinctly easily achieved, and the through hole for setting on fluid injection cavity end in hydraulic stem, design is located on sleeve pipe, and fully taking into account the flowing velocity of liquid and damping effect in practical application, the internal diameter of design through hole is casing inner diameter 1/5th it is ensured that each hydraulic stem has stable buffering effect；
（3）In the cavity type variable active hydraulic damping device of present invention design, stretch into the one end in sleeve pipe for motion bar on hydraulic stem, design rubber sleeve, effectively prevent the direct shock of motion bar and sleeve pipe inner bottom part, serve buffering effect, hydraulic stem itself is prevented to be damaged, the work of impact whole device；
（4）In the cavity type variable active hydraulic damping device of present invention design, for the liquid in the middle of each hydraulic stem and elastic telescopic bag in communication, it is designed with water sensor to be detected, moment pays close attention to the working condition of elastic telescopic bag, whether in time detection elastic telescopic bag damage phenomenon, and in time safeguarded it is ensured that whole device work stability and service life；
（5）In the cavity type variable active hydraulic damping device of present invention design, carry out the device of real-time detection for elastic telescopic bag, design power supply is button cell, controls the volume of electronic detecting device on the whole, it is to avoid occupy bigger space；And the alarm device for the detection of elastic telescopic bag, is designed as audible-visual annunciator so that when detecting that elastic telescopic bag is damaged, can quickly reminding user of service, be safeguarded in time.
Brief description
Fig. 1 is the structural representation that the present invention designs cavity type variable active hydraulic damping device.
Wherein, 1. top board, 2. pedestal, 3. hydraulic stem, 4. elastic telescopic bag, 5. sleeve pipe, 6. motion bar, 7. through hole, 8. cavity, 9. power supply, 10. water sensor, 11. alarm devices, 12. rubber sleeves.
Specific embodiment
With reference to Figure of description, the specific embodiment of the present invention is described in further detail.
As shown in figure 1, the present invention designs a kind of cavity type variable active hydraulic damping device, including top board 1, pedestal 2, elastic telescopic bag 4 and at least one hydraulic stem 3；Each hydraulic stem 3 array distribution is between top board 1 lower surface and pedestal 2 upper surface；Wherein, it is provided with cavity 8 in pedestal 2, elastic telescopic bag 4 is arranged in cavity 8, elastic telescopic bag 4 is provided with unique aperture, in each hydraulic stem 3, the end of fluid injection cavity is provided with through hole 7, through hole 7 on each hydraulic stem 3 connecting water pipe respectively, each water pipe converges to a water pipe after passing through pedestal 2 upper surface, and this water pipe is tightly connected with the perforate on elastic telescopic bag 4；And the volume of cavity 8 is more than the maximum swelling volume of elastic telescopic bag 4, the volume sum in volume when elastic telescopic bag 4 is unexpanded and fluid injection cavity in all hydraulic bar 3 is less than or equal to the maximum swelling volume of elastic telescopic bag 4；The cavity type variable active hydraulic damping device of present invention design, based on hydraulic principle, at least one hydraulic stem 3 of design, each hydraulic stem 3 is designed using array distributed structure, realize many hydraulic stems 3 to act on simultaneously, realize damping effect, avoid the directly contact between hardware, and introduce elastic telescopic cavity, realize liquid actively to flow back, i.e. the flexible bag 4 of design flexibility is connected with each hydraulic stem 3 and is operated, reduce working strength and the workload of hydraulic stem 3, ensure that the service life of hydraulic stem 3, and greatly reduce the speed of hydraulic pressure feedback and dynamics in hydraulic stem 3, it has been truly realized cushioning effect, avoid shaking the damage being brought to object.
On the cavity type variable active hydraulic damping device technical scheme based on above design for the present invention is basic, have also been devised following optimal technical scheme：Described each hydraulic stem 3 includes sleeve pipe 5 and motion bar 6 respectively，Wherein，One end of sleeve pipe 5 is provided with opening，One end of motion bar 6 is stretched in sleeve pipe 5 and can be moved in sleeve pipe 5 along this opening，And the external diameter of this end of motion bar 6 is adapted with the internal diameter of sleeve pipe 5，Injection liquid in sleeve pipe 5，The other end of motion bar 6 is connected with top board 1 lower surface，On sleeve pipe 5, the other end relative with opening place end is connected with pedestal 2 upper surface，And described through hole 7 is arranged on this end of sleeve pipe 5，Volume sum in volume when elastic telescopic bag 4 is unexpanded and all sleeve pipes 5 is less than or equal to the maximum swelling volume of elastic telescopic bag 4，And the internal diameter of through hole 7 is 1/5th of sleeve pipe 5 internal diameter，The detailed construction above in relation to hydraulic stem 3 specific design，Total is succinctly easily achieved，And the through hole 7 for setting on fluid injection cavity end in hydraulic stem 3，Design is located on sleeve pipe 5，And fully take into account the flowing velocity of liquid and damping effect in practical application，The internal diameter of design through hole 7 is 1/5th of sleeve pipe 5 internal diameter，Ensure that each hydraulic stem 6 has stable buffering effect；The rubber sleeve 12 being arranged on the one end stretching in described sleeve pipe 5 is also included on described motion bar 6, design rubber sleeve 12, effectively prevent the direct shock of motion bar 3 and sleeve pipe 5 inner bottom part, serves buffering effect, hydraulic stem 3 is prevented itself to be damaged, the work of impact whole device；Also include being sequentially connected the power supply 9 connecing, water sensor 10 and alarm device 11, water sensor 10 is arranged on the bottom surface of described pedestal 2 internal cavity 8, power supply 9 and alarm device 11 are arranged on the outer surface of pedestal 2, cavity 8 is being provided with active open on one of side on pedestal 2, it is designed with water sensor 10 to be detected, moment pays close attention to the working condition of elastic telescopic bag 4, whether in time detection elastic telescopic bag 4 damage phenomenon, and in time safeguarded it is ensured that whole device work stability and service life；Moreover, carry out in the device of real-time detection for elastic telescopic bag 4, designing described power supply 9 is button cell, control the volume of electronic detecting device on the whole, avoid occupying bigger space, and design described alarm device 11 be audible-visual annunciator so that detect elastic telescopic bag 4 be damaged when, user of service can quickly be reminded, be safeguarded in time.
The present invention design cavity type variable active hydraulic damping device in the middle of actual application, including top board 1, pedestal 2, elastic telescopic bag 4 and at least one hydraulic stem 3；Each hydraulic stem 3 array distribution is between top board 1 lower surface and pedestal 2 upper surface；Wherein, hydraulic stem 3 includes sleeve pipe 5 and motion bar 6, wherein, one end of sleeve pipe 5 is provided with opening, one end of motion bar 6 is stretched in sleeve pipe 5 along this opening, this end of motion bar 6 is moved in sleeve pipe 5, and the external diameter of this end of motion bar is adapted with the internal diameter of sleeve pipe 5, the rubber sleeve 12 being arranged on the one end stretching in described sleeve pipe 5 is also included on described motion bar 6, the other end of motion bar 6 is connected with top board 1 lower surface, on sleeve pipe 5, the other end relative with opening place end is connected with pedestal 2 upper surface, and this end of sleeve pipe 5 is provided with through hole 7, the internal diameter of through hole 7 is 1/5th of sleeve pipe 5 internal diameter；It is provided with cavity 8 in pedestal 2, elastic telescopic bag 4 is arranged in cavity 8, elastic telescopic bag 4 is provided with unique aperture, through hole 7 on each hydraulic stem 3 connecting water pipe respectively, each water pipe converges to a water pipe after passing through pedestal 2 upper surface, this water pipe is tightly connected with the perforate on elastic telescopic bag 4, injection liquid in each sleeve pipe 5；And the volume of cavity 8 is more than the maximum swelling volume of elastic telescopic bag 4, the volume sum in volume when elastic telescopic bag 4 is unexpanded and all sleeve pipes 5 is less than or equal to the maximum swelling volume of elastic telescopic bag 4；Also include being sequentially connected the power supply 9 connecing, water sensor 10 and alarm device 11, water sensor 10 is arranged on the bottom surface of described pedestal 2 internal cavity 8, power supply 9 and alarm device 11 are arranged on the outer surface of pedestal 2, and cavity 8 is being provided with active open on one of side on pedestal 2；And it is designed as button cell for power supply 9 therein, alarm device 11 therein is designed as audible-visual annunciator；In practical application，Object that is transported or placing is arranged on the upper surface of top board 1，Then whole cavity type variable active hydraulic damping device is configured，Can be arranged on vehicle，Or it is placed on specified location，The object being placed on cavity type variable active hydraulic damping device can move with the movement of cavity type variable active hydraulic damping device，When run into there is difference in height in uneven road surface or moving process when，Each hydraulic stem 3 can be lifted with the pressure effect of object，In the liquid in each hydraulic stem 3 can be arranged through water pipe to elastic telescopic bag 4 from sleeve pipe 5 bottom through-hole 7 under motion bar 6 effect，Wherein，Because the internal diameter of sleeve pipe 5 inner via hole 7 is 1/5th of sleeve pipe 5 internal diameter，Therefore，Liquid in hydraulic stem 3 passes through slowly sleeve pipe 5 bottom through-hole 7 under the effect of motion bar 6 pressure and flows in elastic telescopic bag 4，The too drastic motion avoiding hydraulic stem 3 causes to shake to being placed object，Ensure that the damping effect of cavity type variable active hydraulic damping device；Because elastic telescopic bag 4 itself can expand under liquid effects pouring into, buffering effect with hydraulic stem 3, liquid in hydraulic stem 3 flows in elastic telescopic bag 4, when liquid stops flowing in elastic telescopic bag 4, or when liquid has all flowed in elastic telescopic bag 4, slowly its internal liquid can be pressed back in each hydraulic stem 3 because of the elastic extension of itself in elastic telescopic bag 4, realize liquid actively to flow back, also due to the internal diameter of sleeve pipe 5 inner via hole 7 is 1/5th of sleeve pipe 5 internal diameter, therefore, the liquid of elastic telescopic bag 4 equally can slowly flow back in each hydraulic stem 3, the too drastic motion avoiding hydraulic stem 3 causes to shake to being placed object, ensure that the damping effect of cavity type variable active hydraulic damping device.
In practical application, because elastic telescopic bag 4 can flow into liquid, outflow is stretched, so have also been devised power supply 9, water sensor 10 and alarm device 11, whether there is water on water sensor 10 moment detection pedestal 2 internal cavity 8 bottom surface being arranged on pedestal 2 internal cavity 8 bottom surface, i.e. whether detection elastic telescopic bag 4 damages, when finding to damage, just staff can be notified in time by alarm device 11, staff can be safeguarded to elastic telescopic bag 4 in time by the active open being arranged on cavity 8, ensure the service life of whole cavity type variable active hydraulic damping device.
To sum up, the cavity type variable active hydraulic damping device of present invention design, overall structure is simple, and low cost of manufacture can successfully manage various applied environments, and excellent effect, has a wide range of applications promotional value.
Above in conjunction with accompanying drawing, embodiments of the present invention are explained in detail, but the present invention is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art possess, can also make a variety of changes on the premise of without departing from present inventive concept.
Claims (6)
1. a kind of cavity type variable active hydraulic damping device it is characterised in that：Including top board (1), pedestal (2), elastic telescopic
Bag (4) and at least one hydraulic stem (3)；Each hydraulic stem (3) array distribution is in top board (1) lower surface and pedestal (2)
Between upper surface；Wherein, it is provided with cavity (8) in pedestal (2), elastic telescopic bag (4) is arranged in cavity (8),
Elastic telescopic bag (4) is provided with unique aperture, and in each hydraulic stem (3), the end of fluid injection cavity is provided with through hole (7),
Through hole (7) on each hydraulic stem (3) connecting water pipe respectively, each water pipe converges to after passing through pedestal (2) upper surface
A piece water pipe, this water pipe is tightly connected with the perforate on elastic telescopic bag (4)；And the volume of cavity (8) is more than elasticity
The maximum swelling volume of flexible bag (4), volume when elastic telescopic bag (4) is unexpanded and note in all hydraulic bar (3)
Volume sum in sap cavity body is less than or equal to the maximum swelling volume of elastic telescopic bag (4)；Each hydraulic stem (3) is wrapped respectively
Include sleeve pipe (5) and motion bar (6), wherein, one end of sleeve pipe (5) is provided with opening, and one end edge of motion bar (6) should
Opening stretches in sleeve pipe (5) and can move in sleeve pipe (5), and the external diameter of this end of motion bar (6) and sleeve pipe (5)
Internal diameter be adapted, injection liquid in sleeve pipe (5), the other end of motion bar (6) is connected with top board (1) lower surface,
The upper other end relative with opening place end of sleeve pipe (5) is connected with pedestal (2) upper surface, and described through hole (7) sets
Put on this end of sleeve pipe (5), the volume in volume when elastic telescopic bag (4) is unexpanded and all sleeve pipes (5)
Sum is less than or equal to the maximum swelling volume of elastic telescopic bag (4).
2. according to claim 1 a kind of cavity type variable active hydraulic damping device it is characterised in that：Described through hole (7)
Internal diameter be sleeve pipe (5) internal diameter 1/5th.
3. according to claim 2 a kind of cavity type variable active hydraulic damping device it is characterised in that：Described motion bar (6)
On stretch in described sleeve pipe (5) one end on also include rubber sleeve (12).
4. according to any one in claims 1 to 3 a kind of cavity type variable active hydraulic damping device it is characterised in that：
Described cavity type variable active hydraulic damping device also includes being sequentially connected the power supply (9) connecing, water sensor (10) and report
Alert suggestion device (11), water sensor (10) is arranged on the bottom surface of described pedestal (2) internal cavity (8), power supply (9)
It is arranged on the outer surface of pedestal (2) with alarm device (11), cavity (8) is upper one of positioned at pedestal (2)
Side is provided with active open.
5. according to claim 4 a kind of cavity type variable active hydraulic damping device it is characterised in that：Described power supply (9)
For button cell.
6. according to claim 4 a kind of cavity type variable active hydraulic damping device it is characterised in that：Described alarm dress
Putting (11) is audible-visual annunciator.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410462378.3A CN104389946B (en) | 2014-09-12 | 2014-09-12 | Active hydraulic damping device with variable cavity |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410462378.3A CN104389946B (en) | 2014-09-12 | 2014-09-12 | Active hydraulic damping device with variable cavity |
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| CN104389946A CN104389946A (en) | 2015-03-04 |
| CN104389946B true CN104389946B (en) | 2017-02-22 |
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| CN201410462378.3A Expired - Fee Related CN104389946B (en) | 2014-09-12 | 2014-09-12 | Active hydraulic damping device with variable cavity |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106025486B (en) * | 2016-04-28 | 2019-03-22 | 北京工业大学 | A kind of geological radar antenna self-regulation support device |
| CN107054600A (en) * | 2017-04-28 | 2017-08-18 | 广西欧讯科技服务有限责任公司 | A kind of ship pump pushing device |
| CN107150777A (en) * | 2017-04-28 | 2017-09-12 | 广西欧讯科技服务有限责任公司 | A kind of efficient ship pump pushing device |
| CN107559373B (en) * | 2017-08-08 | 2019-06-25 | 武汉理工大学 | A kind of stern impulses power attenuating device |
| CN108035084A (en) * | 2017-10-27 | 2018-05-15 | 安徽省萧县徽星机械制造有限公司 | A kind of sewing quilt machine gas liquid type cushioning device |
| CN108523943B (en) * | 2018-04-19 | 2020-08-28 | 王成德 | Medical instrument for interventional therapy |
| CN108589490B (en) * | 2018-05-06 | 2019-11-05 | 吉林大学 | Vehicle-mounted road surface flaw detection system verifying attachment based on varying depth crackle |
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| CN2308763Y (en) * | 1997-10-10 | 1999-02-24 | 吉林工业大学 | Hydraulic damping suspension arranged component of engine |
| CN201618774U (en) * | 2010-01-06 | 2010-11-03 | 宁波澳玛特高精冲压机床股份有限公司 | Pneumatic die cushion device |
| CN201723643U (en) * | 2010-07-21 | 2011-01-26 | 安徽工程大学 | Active control hydraulic pressure suspension for automobile engine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007153173A (en) * | 2005-12-06 | 2007-06-21 | Honda Motor Co Ltd | Hydropneumatic suspension |
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- 2014-09-12 CN CN201410462378.3A patent/CN104389946B/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2308763Y (en) * | 1997-10-10 | 1999-02-24 | 吉林工业大学 | Hydraulic damping suspension arranged component of engine |
| CN201618774U (en) * | 2010-01-06 | 2010-11-03 | 宁波澳玛特高精冲压机床股份有限公司 | Pneumatic die cushion device |
| CN201723643U (en) * | 2010-07-21 | 2011-01-26 | 安徽工程大学 | Active control hydraulic pressure suspension for automobile engine |
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