CN105546030B - Engine snubber - Google Patents
Engine snubber Download PDFInfo
- Publication number
- CN105546030B CN105546030B CN201510975126.5A CN201510975126A CN105546030B CN 105546030 B CN105546030 B CN 105546030B CN 201510975126 A CN201510975126 A CN 201510975126A CN 105546030 B CN105546030 B CN 105546030B
- Authority
- CN
- China
- Prior art keywords
- sliding
- engine
- hydraulic cylinder
- mounting blocks
- snubber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- F16F15/027—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 comprising control arrangements
-
- 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
- F16F15/04—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 elastic means
- F16F15/08—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 elastic means with rubber springs ; with springs made of rubber and metal
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a kind of engine snubber；Including control board etc.：The outer inframe sets sliding shoe, is provided with gap between sliding shoe and the inwall of housing, short vibration isolation rubber is provided with the gap, short vibration isolation rubber is provided at both ends with long vibration isolation rubber；Hydraulic cylinder is provided with the sliding shoe, the hydraulic cylinder upper end is provided with sliding recess；Piston is provided with the hydraulic cylinder, sliding panel is provided with sliding recess, is slidably connected between the sliding recess and sliding panel；The downside of the hydraulic cylinder is provided with pipeline；The upper end of the sliding shoe sets fixed plate, and sliding bar is provided with through hole in the fixed plate；The sliding bar is connected after running through through hole with engine mounting blocks；Elastic mechanism is provided between the fixed plate and engine mounting blocks；The acceleration transducer being connected with control board is set on the upside of the engine mounting blocks.
Description
Technical field
The present invention relates to the technical field of industrial goods, especially a kind of engine shock absorber.
Background technology
The problem of vibration of engine is always one of concern, because engine is the power source of a machine
Spring, its burning industrial oil produces big pressure and promotes crank rotation, several due to existing in a working cycles so as to export power
Middle different working condition, this allows for engine and strong vibration inevitably be present, and the vibration of engine is to machinery zero
The work of part is totally unfavorable, and because its vibration causes the working life of corresponding part to shorten, reliability dies down, to one
A little large pieces cause different injuries, the final service life for influenceing whole equipment；And traditional engine vibration-damping is all simple
Plus rubber blanket carry out vibration damping, effectiveness in vibration suppression is undesirable, and the intensity of engine luggine can not detect, and vibration damping situation can not be adjusted
Section, for this reason, it is necessary to provided with a kind of new engine snubber.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of engine snubber, engine vibration intensity can be enable to examine
Survey, while vibration damping degree can be adjusted, using spring and liquid-springing, good damping result.
In order to solve the above-mentioned technical problem, the present invention provides a kind of engine snubber；Including control board, acceleration
Sensor, engine mounting blocks, shock-absorbing spring, sliding bar, housing, sliding shoe, piston and electromagnetic flow valve；The outer inframe is set
Sliding shoe is put, gap is provided between sliding shoe and the inwall of housing, short vibration isolation rubber, short vibration isolation rubber are provided with the gap
Be provided at both ends with long vibration isolation rubber；Hydraulic cylinder is provided with the sliding shoe, the hydraulic cylinder upper end is provided with sliding recess；
Piston is provided with the hydraulic cylinder, sliding panel is provided with sliding recess, the company of slip between the sliding recess and sliding panel
Connect；The downside of the hydraulic cylinder is provided with pipeline；The upper end of the sliding shoe sets fixed plate, in the fixed plate relative to
Sliding bar is provided with through hole；The sliding bar is connected after running through through hole with engine mounting blocks；The fixed plate and engine
Elastic mechanism is provided between mounting blocks；The acceleration being connected with control board is set to pass on the upside of the engine mounting blocks
Sensor.
As the improvement to engine snubber of the present invention：The elastic mechanism is shock-absorbing spring, the vibration damping bullet
Spring is sleeved in sliding bar, and the shock-absorbing spring one end props up the downside of engine mounting blocks, and other end props up fixed plate
Upper side.
As the further improvement to engine snubber of the present invention：The hydraulic cylinder is located under sliding recess
Side；Sliding panel is formed with sliding recess and is slidably matched.
As the further improvement to engine snubber of the present invention：It is recessed that the side of the piston is provided with circular arc
Groove, sealing ring is provided with arc groove；The quantity of the sealing ring of each piston installation is 2.
As the further improvement to engine snubber of the present invention：The central diameter of the shock-absorbing spring, which is more than, fixes
The diameter of through hole on plate.
As the further improvement to engine snubber of the present invention：The quantity of the hydraulic cylinder is at least 2,
It is connected with each other between the pipeline of any hydraulic cylinder by electromagnetic flow valve；The electromagnetic flow valve is connected with control board
Connect.
As the further improvement to engine snubber of the present invention：The short vibration isolation rubber and long vibration isolation rubber
Inside is provided with cushion hole.
As the further improvement to engine snubber of the present invention：The engine mounting blocks both ends are provided with convex
Platform, boss are provided with mounting hole, and one side of mounting hole is provided with pre- tieholen；The housing both sides are provided with projection, are provided with and slide in projection
Dynamic hole, pretension bolt pass sequentially through pre- tieholen and sliding eye, and pretension bolt leaves gap, pretension bolt lower end with sliding eye inwall
It is connected with double nut.
The beneficial effect of the present invention：The present invention, can by will be provided with acceleration transducer on the upside of engine mounting blocks
Detected with the Vibration Condition to engine；Engine mounting blocks both ends are provided with pretension bolt, can be to the pre- of shock-absorbing spring
Clamp force carries out initial regulation；By the present invention in that vibration damping, good damping result are carried out to engine with spring and hydraulic oil；Liquid
Pipeline is installed on the downside of cylinder pressure, lower end of duct is provided with electromagnetic flow valve, the flow of hydraulic oil can be adjusted, so as to adjust
Whole is different effectiveness in vibration suppression；The present invention is simple in construction, powerful, good damping result, can be widely applied to engine vibration-damping,
The particularly vibration damping of the engineering machinery such as fork truck.
Brief description of the drawings
The embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is a kind of top view of engine snubber of the present invention；
Fig. 2 is a kind of top plan view of engine snubber of the present invention；
Fig. 3 is a kind of schematic perspective view of engine snubber of the present invention；
Fig. 4 is a kind of workflow diagram of engine snubber of the present invention.
Embodiment
Embodiment 1, Fig. 1~Fig. 4 give a kind of engine shock absorber, including control board, acceleration transducer 2,
Engine mounting blocks 3, shock-absorbing spring 4, sliding bar 5, housing 7, sliding shoe 9, piston 11 and electromagnetic flow valve 13.
Sliding shoe 9 is set in housing 7, and the upside of housing 7 sets engine mounting blocks 3.
Gap is provided between the lateral wall of sliding shoe 9 and the madial wall of housing 7, short vibration isolation rubber is provided with the gap
10, short vibration isolation rubber 10 is provided at both ends with long vibration isolation rubber 18；The inside of short vibration isolation rubber 10 and long vibration isolation rubber 18 is all provided with
It is equipped with some cushion holes 17.
Hydraulic cylinder 15 is provided with sliding shoe 9, the quantity at least two of the hydraulic cylinder 15, in the present embodiment, such as Fig. 2 institutes
Show, its quantity is three.Its three hydraulic cylinders 15 are disposed side by side in sliding shoe 9.And it is provided with three upper ends of hydraulic cylinder 15
Sliding recess 8, the sliding recess 8 is by covering three cylinder pressures 15；Sliding panel 14 is provided with sliding recess 8, in hydraulic cylinder
Piston 11 is provided with 15, the upper end (i.e. piston rod) of piston 11 is provided with sliding panel 14 so that sliding panel 14 and sliding recess 8
Between formed and be slidably connected；The upper end of sliding shoe 9 sets fixed plate 21 (being connected by snap bolt 6), passes through fixed plate 21
Sliding recess 8 is completely covered；The upper side of sliding panel 14 is provided with sliding bar 5, is set in fixed plate 21 relative to sliding bar 5
There is through hole so that the sliding bar 5 is fixedly connected after running through through hole with the phase of engine mounting blocks 3；Fixed plate 21 and engine mounting blocks
Elastic mechanism is provided between 3；The elastic mechanism is more than the shock-absorbing spring 4 of through-hole diameter in fixed plate 21, the vibration damping for central diameter
Spring 4 is sleeved in sliding bar 5, and the one end of shock-absorbing spring 4 props up the downside of engine mounting blocks 3, and other end props up solid
The upper side of fixed board 21.
The downside of three hydraulic cylinders 15 is respectively arranged with pipeline 12；Three pipelines 12 are downward through mutual after housing 7
Connection, and the total pipeline being interconnected with fuel tank is formed, electromagnetic flow valve 13 is provided with the total pipeline, passes through electromagnetic flow valve
The flow of 13 control fluid.The electromagnetic flow valve 13 is connected with each other with control board.The upside of engine mounting blocks 3 is set and control
The acceleration transducer 2 that circuit board processed is connected.
The side of piston 11 is provided with 11 liang of circles of arc groove ring piston, and sealing ring 16 is provided with arc groove；Sealing
The quantity of circle 16 is at least more than one, and the quantity of sealing ring 16 is 2 on each piston 11 used in the present embodiment.
The both ends of engine mounting blocks 3 are provided with boss, and boss is provided with mounting hole 20, and one side of mounting hole 20 is provided with pre- tieholen
23；The both sides of housing 7 are provided with projection 25, and sliding eye 24 is provided with projection 25, and pretension bolt 22 passes sequentially through pre- tieholen 23 with sliding
Hole 24, pretension bolt 22 leave gap with the inwall of sliding eye 24, and the lower end of pretension bolt 22 is connected with double nut 26.
The course of work of the present invention：
A kind of engine snubber of the present invention in the course of the work, engine is arranged on above engine mounting blocks 3, outside
Frame 7 is connected with vehicle frame, first passes through the pretightning force initial to shock-absorbing spring 4 of pretension bolt 22 and is adjusted to appropriate value, works as engine
During work, vibration is produced, acceleration transducer 2 is detected to Vibration Condition, and detection data are transmitted into control board, when
When acceleration is big, the valve port of control board control electromagnetic flow valve 13 is fully open, thus using shock-absorbing spring 4 to engine
Carry out vibration damping；When acceleration is small, the control board control valve port of electromagnetic flow valve 13 partially opens, and thus utilizes shock-absorbing spring
4 and piston 11 common vibration damping is carried out to engine；Oscillation crosswise caused by engine, mainly pass through short vibration isolation rubber 10 and length
Cushion hole 17 inside vibration isolation rubber 18 is to oscillation crosswise vibration damping.
The present invention by the upside of engine mounting blocks 3 by being provided with acceleration transducer 2, vibration feelings that can be to engine
Condition is detected；The both ends of engine mounting blocks 3 are provided with pretension bolt 22, and the pretightning force of shock-absorbing spring 4 can be carried out initially
Regulation；By the present invention in that vibration damping, good damping result are carried out to engine with shock-absorbing spring 4 and hydraulic oil；Under hydraulic cylinder 15
Side is provided with pipeline 12, and the lower end of pipeline 12 is provided with electromagnetic flow valve 13, the flow of hydraulic oil can be adjusted, so as to adjust
Whole is different effectiveness in vibration suppression；The present invention is simple in construction, powerful, good damping result, can be widely applied to engine vibration-damping,
The particularly vibration damping of the engineering machinery such as fork truck.
Finally, it is also necessary to it is noted that listed above is only a specific embodiment of the invention.Obviously, it is of the invention
Above example is not limited to, there can also be many deformations.One of ordinary skill in the art can be straight from present disclosure
Export or all deformations associated are connect, are considered as protection scope of the present invention.
Claims (8)
- A kind of 1. engine snubber；Including control board, acceleration transducer (2), engine mounting blocks (3), vibration damping bullet Spring (4), sliding bar (5), housing (7), sliding shoe (9), piston (11) and electromagnetic flow valve (13)；It is characterized in that：Piston (11) Upper end be provided with sliding panel (14), the upper side of sliding panel (14) is provided with sliding bar (5)；Sliding shoe (9) is set in the housing (7), is provided with gap between sliding shoe (9) and the inwall of housing (7), the gap Short vibration isolation rubber (10) is inside provided with, short vibration isolation rubber (10) is provided at both ends with long vibration isolation rubber (18)；Hydraulic cylinder (15) is provided with the sliding shoe (9), hydraulic cylinder (15) upper end is provided with sliding recess (8)；Piston (11) is provided with the hydraulic cylinder (15), sliding panel (14), the sliding recess are provided with sliding recess (8) (8) it is slidably connected between sliding panel (14)；The downside of the hydraulic cylinder (15) is provided with pipeline (12)；The upper end of the sliding shoe (9) sets fixed plate (21), is provided with the fixed plate (21) relative to sliding bar (5) logical Hole；The sliding bar (5) is connected after running through through hole with engine mounting blocks (3)；The fixed plate (21) and engine installation Block is provided with elastic mechanism between (3)；The acceleration transducer (2) being connected with control board is set on the upside of the engine mounting blocks (3).
- 2. engine snubber according to claim 1, it is characterized in that：The elastic mechanism is shock-absorbing spring (4), and this subtracts The spring (4) that shakes is sleeved in sliding bar (5), and shock-absorbing spring (4) one end props up the downside of engine mounting blocks (3), in addition One end props up the upper side of fixed plate (21).
- A kind of 3. engine snubber as claimed in claim 2, it is characterised in that：The hydraulic cylinder (15) is located at sliding recess (8) lower section；Sliding panel (14) is formed with sliding recess (8) and is slidably matched.
- 4. engine snubber as claimed in claim 3, it is characterised in that：It is recessed that the side of the piston (11) is provided with circular arc Groove, sealing ring (16) is provided with arc groove；The quantity of the sealing ring (16) of each piston (11) installation is 2.
- 5. engine snubber as claimed in claim 4, it is characterised in that：The central diameter of the shock-absorbing spring (4), which is more than, fixes The diameter of through hole on plate (21).
- 6. engine snubber as claimed in claim 5, it is characterised in that：The quantity of the hydraulic cylinder (15) is at least 2, It is connected with each other between the pipeline (12) of any hydraulic cylinder (15) by electromagnetic flow valve (13)；The electromagnetic flow valve (13) is connected with control board.
- 7. engine snubber as claimed in claim 6, it is characterised in that：The short vibration isolation rubber (10) and long vibration isolation rubber (18) it is internal to be provided with cushion hole (17).
- 8. engine snubber as claimed in claim 7, it is characterised in that：Engine mounting blocks (3) both ends are provided with convex Platform, boss are provided with mounting hole (20), and one side of mounting hole (20) is provided with pre- tieholen (23)；Housing (7) both sides are provided with projection (25), are provided with sliding eye (24) in projection (25), pretension bolt (22) passes sequentially through Pre- tieholen (23) and sliding eye (24), pretension bolt (22) leave gap, pretension bolt (22) lower end with sliding eye (24) inwall It is connected with double nut (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510975126.5A CN105546030B (en) | 2015-12-22 | 2015-12-22 | Engine snubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510975126.5A CN105546030B (en) | 2015-12-22 | 2015-12-22 | Engine snubber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105546030A CN105546030A (en) | 2016-05-04 |
| CN105546030B true CN105546030B (en) | 2017-12-19 |
Family
ID=55825459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510975126.5A Active CN105546030B (en) | 2015-12-22 | 2015-12-22 | Engine snubber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105546030B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107499109B (en) * | 2017-08-24 | 2019-11-15 | 玉环市环宇光学仪器股份有限公司 | A kind of fixed device of multifunctional engine |
| CN109356967A (en) * | 2018-10-29 | 2019-02-19 | 长光卫星技术有限公司 | It is a kind of to wave isolation mounting for reducing the anti-of flywheel micro-vibration |
| CN110273969B (en) * | 2019-05-29 | 2020-12-01 | 北京强度环境研究所 | Flexible and adjustable elastic supporting device |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4971300A (en) * | 1986-04-05 | 1990-11-20 | Firma Carl Freudenberg | Motor mount having improved hydraulic damping |
| JP2001065632A (en) * | 1999-08-25 | 2001-03-16 | Iijima Kenchiku Jimusho:Kk | Vibration control device for pole |
| JP2006322608A (en) * | 2005-04-18 | 2006-11-30 | Shin Caterpillar Mitsubishi Ltd | Mount device |
| CN201300689Y (en) * | 2008-09-02 | 2009-09-02 | 陈小明 | Device using automobile hydraulic shock absorber to do work |
| KR100927954B1 (en) * | 2009-09-15 | 2009-11-24 | 유노빅스이엔씨(주) | Spring damper mount |
| CN102493934A (en) * | 2011-12-14 | 2012-06-13 | 袁绍明 | Spring and hydraulic oil cylinder combination-based automotive engine |
| CN102701037A (en) * | 2012-04-18 | 2012-10-03 | 林智勇 | Elevator safety airbag device |
| CN102927077A (en) * | 2012-10-10 | 2013-02-13 | 王学章 | Magnetoelastic combined type hydraulic energy accumulation cylinder |
| CN202883875U (en) * | 2012-08-22 | 2013-04-17 | 浙江师范大学 | Piezoelectric hydraulic energy recovery damper |
| JP2015127592A (en) * | 2015-04-03 | 2015-07-09 | ヘルツ株式会社 | Vibration isolator with antiseismic function |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7284527B2 (en) * | 2003-04-08 | 2007-10-23 | Freudenberg-Nok General Partnership | Tuned vibration absorber |
-
2015
- 2015-12-22 CN CN201510975126.5A patent/CN105546030B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4971300A (en) * | 1986-04-05 | 1990-11-20 | Firma Carl Freudenberg | Motor mount having improved hydraulic damping |
| JP2001065632A (en) * | 1999-08-25 | 2001-03-16 | Iijima Kenchiku Jimusho:Kk | Vibration control device for pole |
| JP2006322608A (en) * | 2005-04-18 | 2006-11-30 | Shin Caterpillar Mitsubishi Ltd | Mount device |
| CN201300689Y (en) * | 2008-09-02 | 2009-09-02 | 陈小明 | Device using automobile hydraulic shock absorber to do work |
| KR100927954B1 (en) * | 2009-09-15 | 2009-11-24 | 유노빅스이엔씨(주) | Spring damper mount |
| CN102493934A (en) * | 2011-12-14 | 2012-06-13 | 袁绍明 | Spring and hydraulic oil cylinder combination-based automotive engine |
| CN102701037A (en) * | 2012-04-18 | 2012-10-03 | 林智勇 | Elevator safety airbag device |
| CN202883875U (en) * | 2012-08-22 | 2013-04-17 | 浙江师范大学 | Piezoelectric hydraulic energy recovery damper |
| CN102927077A (en) * | 2012-10-10 | 2013-02-13 | 王学章 | Magnetoelastic combined type hydraulic energy accumulation cylinder |
| JP2015127592A (en) * | 2015-04-03 | 2015-07-09 | ヘルツ株式会社 | Vibration isolator with antiseismic function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105546030A (en) | 2016-05-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105546030B (en) | Engine snubber | |
| EP3152445B1 (en) | Hydraulic cylinder | |
| RU166778U1 (en) | HYDRO-PNEUMATIC SUSPENSION OF A VEHICLE | |
| CN104482102A (en) | Locomotive vehicle oil pressure shock absorber | |
| CN101709758B (en) | Single-cylinder pneumatic-hydraulic multistage automatic control damper | |
| CN204327846U (en) | A kind of locomotive vehicle oil hydraulic damper | |
| CN203078630U (en) | Excavator track tensioning cylinder | |
| CN201335760Y (en) | Pressure testing and pressure increasing device of blowout preventer | |
| CN103821870B (en) | The driver's cab vibration damping equipment of a kind of bidirectional elastic and change hydraulic damping | |
| CN107381280A (en) | A kind of stair shaft for being provided with buffer unit | |
| CN203656025U (en) | Impact resistance shock absorber | |
| CN207372625U (en) | Vehicle shock absorber head protector press-loading apparatus | |
| CN107458943A (en) | A kind of buffer unit being installed in stair shaft | |
| CN102079302A (en) | Air booster pump of engineering machinery brake system | |
| CN104358735A (en) | Lifting hydraulic oil cylinder | |
| CN203730638U (en) | Two-way elastic and variable-hydraulic damping cab vibration reduction device | |
| CN104003311B (en) | Fender guard and hoisting crane | |
| CN205780039U (en) | Inbuilt displacement sensor formula circuit controls derrick oil cylinder | |
| CN106989866B (en) | Damping pressure gauge damping device | |
| CN209370191U (en) | A kind of high life buffering hydraulic cylinder | |
| CN201358975Y (en) | Novel hydraulic cylinder | |
| CN207275941U (en) | A kind of stair shaft for being provided with buffer unit | |
| CN201884253U (en) | Durable drill pump | |
| CN204664688U (en) | A kind ofly connect firm pipe joint | |
| CN205078530U (en) | A hydraulic pressure oil circuit that is used for flat board to turn over mould machine safe being equipped with pressing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |