CN108412931A - A kind of mechanical equipment bottom damping device - Google Patents
A kind of mechanical equipment bottom damping device Download PDFInfo
- Publication number
- CN108412931A CN108412931A CN201810346506.6A CN201810346506A CN108412931A CN 108412931 A CN108412931 A CN 108412931A CN 201810346506 A CN201810346506 A CN 201810346506A CN 108412931 A CN108412931 A CN 108412931A
- Authority
- CN
- China
- Prior art keywords
- plate
- storehouse
- heelpiece
- baffle
- spring
- 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.)
- Withdrawn
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
-
- 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
- F16F15/06—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 metal springs
-
- 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
- F16F7/00—Vibration-dampers; Shock-absorbers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a kind of mechanical equipment bottom damping devices,Including the first spring,Support plate,Bottom plate,Rectangular channel,Push rod,Fixed bin,Resetting spring,Pedestal,Pneumatic bumper,Intermediate plate,Baffle,It is pressurized storehouse,Rack,Defeated pressure storehouse,Buffer layer,Heelpiece,Side plate,Top plate,Threaded hole,Baffle ring,Connecting pin,Second spring and through-hole,The surrounding of the heelpiece is fixedly connected with side plate,Side plate is rectangular frame structure,The top of heelpiece is equipped with top plate,Centre position between top plate and heelpiece is equipped with hydraulic damping device,The pneumatic bumper is by intermediate plate,Baffle,It is pressurized storehouse,Rack,Defeated pressure storehouse,Baffle ring,Connecting pin and through-hole composition,The bottom centre position of top plate is fixedly connected with intermediate plate,The lower section of intermediate plate is equipped with baffle,Rack is arranged in the top surface centre position of heelpiece,Inside of rack center position is equipped with supercharging storehouse,The surrounding in supercharging storehouse is respectively equipped with defeated pressure storehouse.
Description
Technical field
The present invention relates to shock-absorption device field, specifically a kind of mechanical equipment bottom damping device.
Background technology
With being showing improvement or progress day by day for science and technology, big and small factory, the heavy mechanical equipment being seen everywhere supplies goods and materials
Production, and these heavy mechanical equipments are in process of production, inevitably will produce vibrations, exactly this vibrations are to product and work people
Member brings great harm, but can not solve the problems, such as damping in existing damping device well, often device it is heavy and
Inconvenient, only simple single layer damping can not meet production requirement well, and damping effect is not it is obvious that in turn
The working efficiency of mechanical equipment is seriously affected, single damping can not preferably realize damping effect, therefore propose a kind of
Mechanical equipment bottom damping device.
Invention content
The purpose of the present invention is to provide a kind of mechanical equipment bottom damping devices, to solve to propose in above-mentioned background technology
The problem of.
To achieve the above object, the present invention provides the following technical solutions：
A kind of mechanical equipment bottom damping device, including the first spring, support plate, bottom plate, rectangular channel, push rod, fixed bin, reset
Spring, pedestal, pneumatic bumper, intermediate plate, baffle, supercharging storehouse, rack, defeated pressure storehouse, buffer layer, heelpiece, side plate, top plate,
The surrounding of threaded hole, baffle ring, connecting pin, second spring and through-hole, the heelpiece is fixedly connected with side plate, and side plate is rectangular frame
The top of structure, heelpiece is equipped with top plate, and the centre position between top plate and heelpiece is equipped with hydraulic damping device, the pneumatic shock absorbing
Device is made of intermediate plate, baffle, supercharging storehouse, rack, defeated pressure storehouse, baffle ring, connecting pin and through-hole, the bottom centre position of top plate
It is fixedly connected with intermediate plate, the lower section of intermediate plate is equipped with baffle, and rack is arranged in the top surface centre position of heelpiece, machine frame inside
Heart position is equipped with supercharging storehouse, and the surrounding for being pressurized storehouse is respectively equipped with defeated pressure storehouse, and supercharging storehouse is opened on the bottom bay before defeated pressure storehouse
Equipped with through-hole, the inside of through-hole is respectively equipped with connecting pin, and one end that connecting pin is located at defeated pressure storehouse is equipped with baffle ring, the quadrangle position of heelpiece
It sets and is respectively equipped with pedestal, push rod is welded at the top of pedestal, the top of push plate is equipped with fixed bin, and the top of fixed bin is fixedly connected
On the bottom surface of top plate, the top of push rod is arranged is equipped with the between the inside of fixed bin, the top of push rod and fixed box top
Two springs, push rod are equipped with resetting spring, and the surrounding of top plate has been respectively fixedly connected with support plate, and the bottom of support plate is equipped with bottom
Plate, offers rectangular channel inside the surrounding of side plate respectively, and bottom plate is arranged in the inside of rectangular channel, the bottom of bottom plate and rectangular channel
The first spring is equipped between bottom.
As a further solution of the present invention：The top corner location of the top plate 18 is respectively equipped with threaded hole 19, uses
When the position of top plate 18 can be fixed using bolt so that device will not shift when damping works, and ensure normal
Damping works.
As a further solution of the present invention：The bottom of the heelpiece 16 is equipped with buffer layer 15, and buffer layer 15 is using natural
Rubber material is made, and in device shock absorbing process, the bottom of protective device makes device direct collision will not occur with ground and produce
Raw damage, improves the service life of device.
As a further solution of the present invention：The resetting spring 7 is arranged between fixed bin 6 and pedestal 8, in top plate 18
When moving down, resistance that can be upward between fixed bin 6 reaches damping purpose.
As a further solution of the present invention：The outer ring of the baffle 11 is cased with sealing ring, avoids inside supercharging storehouse 12
Gas leaks and loses damping purpose, ensures the normal work of hydraulic damping device.
As a further solution of the present invention：The defeated pressure storehouse 14 needs to carry out supercharging work before working so that defeated pressure storehouse 14
The original air pressure in inside higher than supercharging storehouse 12, the movement of connecting pin 21 can be hindered, reach better pneumatic shock absorbing effect.
Compared with prior art, the beneficial effects of the invention are as follows：Structure of the invention design innovation, thinking is novel, works as machinery
When work generates vibrations, the intermediate plate 10 in pneumatic bumper moves downward after being under pressure so that and baffle 11 moves downward,
Promote the air pressure being pressurized inside storehouse 12 to increase, pushes connecting pin 21 to be moved to the direction in defeated pressure storehouse 14, inside defeated pressure storehouse 14
Script air pressure is higher so that connecting pin 21 moves difficulty, applies reversed resistance to baffle 11, reaches effect of easing stress, pushes up simultaneously
Plate 18 and support plate 2 move downward so that bottom plate 3 and fixed bin 6 move downward, the second bullet of 5 top of the first spring 1 and push rod
Spring and resetting spring 7 apply reversed elastic force to bottom plate 3 and fixed bin 6 respectively, and top plate 3 is hindered to move downward, and reach damping effect
Fruit, the method being combined with spring shock absorption using pneumatic shock absorbing keep damping effect more preferably outstanding, and mechanical oscillation production is greatly lowered
Raw harm.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of mechanical equipment bottom damping device.
Fig. 2 is a kind of side view of mechanical equipment bottom damping device.
Fig. 3 is partial enlarged view A.
In figure：First spring 1, support plate 2, bottom plate 3, rectangular channel 4, push rod 5, fixed bin 6, resetting spring 7, pedestal 8, gas
Press damping device 9, intermediate plate 10, baffle 11, supercharging storehouse 12, rack 13, defeated pressure storehouse 14, buffer layer 15, heelpiece 16, side plate 17,
Top plate 18, threaded hole 19, baffle ring 20, connecting pin 21, second spring 22, through-hole 23.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig.1~3, in the embodiment of the present invention, a kind of mechanical equipment bottom damping device, including the first spring 1, branch
Fagging 2, bottom plate 3, rectangular channel 4, push rod 5, fixed bin 6, resetting spring 7, pedestal 8, pneumatic bumper 9, intermediate plate 10, baffle
11, it is pressurized storehouse 12, rack 13, defeated pressure storehouse 14, buffer layer 15, heelpiece 16, side plate 17, top plate 18, threaded hole 19, baffle ring 20, connects
The surrounding of outbound 21, second spring 22 and through-hole 23, the heelpiece 16 is fixedly connected with side plate 17, and side plate 17 is rectangular frame knot
The top of structure, heelpiece 16 is equipped with top plate 18, and the centre position between top plate 18 and heelpiece 16 is equipped with hydraulic damping device 9, described
Pneumatic bumper 9 is by intermediate plate 10, baffle 11, supercharging storehouse 12, rack 13, defeated pressure storehouse 14, baffle ring 20, connecting pin 21 and through-hole
The bottom centre position of 23 compositions, top plate 18 is fixedly connected with intermediate plate 10, and the lower section of intermediate plate 10 is equipped with baffle 11, rack 13
It is arranged in the top surface centre position of heelpiece 16,13 inner hub location of rack is equipped with supercharging storehouse 12, the surrounding difference in supercharging storehouse 12
Equipped with defeated pressure storehouse 14, supercharging storehouse 12 offers through-hole 23, the inside points of through-hole 23 on the bottom bay 13 before defeated pressure storehouse 14
Not She You connecting pin 21, one end that connecting pin 21 is located at defeated pressure storehouse 14 is equipped with baffle ring 20, when work, after intermediate plate 10 is under pressure
It moves downward so that baffle 11 moves downward, and promotes the air pressure being pressurized inside storehouse 12 to increase, pushes connecting pin 21 to defeated pressure storehouse 14
Direction movement, since defeated 14 inside script air pressure of pressure storehouse is higher so that connecting pin 21 moves difficulty, applies reversely to baffle 11
Resistance, reach effect of easing stress.
The corner location of the heelpiece 16 is respectively equipped with pedestal 8, and the top of pedestal 8 is welded with push rod 5, the top of push plate 5
Equipped with fixed bin 6, the top of fixed bin 6 is fixedly connected on the bottom surface of top plate 18, and the top of push rod 5 is arranged in fixed bin 6
Inside is equipped with second spring 22 between 6 top surface of top and fixed bin of push rod 5, and push rod 5 is equipped with resetting spring 7, top plate 18
Surrounding has been respectively fixedly connected with support plate 2, and the bottom of support plate 2 is equipped with bottom plate 3, square is offered respectively inside the surrounding of side plate 17
Shape slot 4, bottom plate 3, which is arranged between the inside of rectangular channel 4, the bottom and the bottom of rectangular channel 4 of bottom plate 3, is equipped with the first spring 1, work
When making, top plate 18 is fixed on to the bottom of mechanical equipment using bolt, when machine work generates vibrations, top plate 18 and support plate
2 move downward so that bottom plate 3 and fixed bin 6 move downward, the second spring and resetting spring of 5 top of the first spring 1 and push rod
7, reversed elastic force is applied to bottom plate 3 and fixed bin 6 respectively, hinders top plate 3 to move downward, reaches damping effect.
The top corner location of the top plate 18 is respectively equipped with threaded hole 19, and when use can use bolt by top plate 18
Position is fixed so that device will not shift when damping works, and ensure normal damping work.
The bottom of the heelpiece 16 is equipped with buffer layer 15, and buffer layer 15 is made of natural rubber material, in device damping
In the process, the bottom of protective device makes device direct collision will not occur with ground and generate damage, and that improves device uses the longevity
Life.
The resetting spring 7 is arranged between fixed bin 6 and pedestal 8, can be to fixed bin when top plate 18 moves down
Upward resistance between 6, reaches damping purpose.
The outer ring of the baffle 11 is cased with sealing ring, avoids the gas leakage inside supercharging storehouse 12 and loses damping purpose,
Ensure the normal work of hydraulic damping device.
The defeated pressure storehouse 14 needs to carry out supercharging work before working so that the original air pressure in inside in defeated pressure storehouse 14 is higher than supercharging storehouse
12, the movement of connecting pin 21 can be hindered, better pneumatic shock absorbing effect is reached.
The present invention operation principle be：When mechanical shock, intermediate plate 10 moves downward after being under pressure so that baffle 11
It moves downward, the air pressure being pressurized inside storehouse 12 is promoted to increase, push connecting pin 21 to be moved to the direction in defeated pressure storehouse 14, due to defeated pressure
14 inside script air pressure of storehouse is higher so that connecting pin 21 moves difficulty, applies reversed resistance to baffle 11, reaches decompression effect
Fruit, while top plate 18 being fixed on to using bolt the bottom of mechanical equipment, when machine work generates vibrations, top plate 18 and support
Plate 2 moves downward so that bottom plate 3 and fixed bin 6 move downward, the second spring and reset bullet of 5 top of the first spring 1 and push rod
Spring 7 applies reversed elastic force to bottom plate 3 and fixed bin 6 respectively, hinders top plate 3 to move downward, reaches damping effect.
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art,
It still can be with technical scheme described in the above embodiments is modified, or is carried out to which part technical characteristic etc.
With replacing, all within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this
Within the protection domain of invention.
Claims (6)
1. a kind of mechanical equipment bottom damping device, including it is the first spring, support plate, bottom plate, rectangular channel, push rod, fixed bin, multiple
Position spring, pedestal, pneumatic bumper, intermediate plate, baffle, supercharging storehouse, rack, defeated pressure storehouse, buffer layer, heelpiece, side plate, top
Plate, threaded hole, baffle ring, connecting pin, second spring and through-hole, which is characterized in that the surrounding of the heelpiece is fixedly connected with side plate,
Side plate is rectangular frame structure, and the top of heelpiece is equipped with top plate, and the centre position between top plate and heelpiece is filled equipped with hydraulic shock-absorption
It sets, the pneumatic bumper is made of intermediate plate, baffle, supercharging storehouse, rack, defeated pressure storehouse, baffle ring, connecting pin and through-hole, is pushed up
The bottom centre position of plate is fixedly connected with intermediate plate, and the lower section of intermediate plate is equipped with baffle, and rack is arranged in the top surface of heelpiece
Between position, inside of rack center position is equipped with supercharging storehouse, and the surrounding for being pressurized storehouse is respectively equipped with defeated pressure storehouse, supercharging storehouse and defeated pressure storehouse it
Through-hole is offered on preceding bottom bay, the inside of through-hole is respectively equipped with connecting pin, and one end that connecting pin is located at defeated pressure storehouse is equipped with
The corner location of baffle ring, heelpiece is respectively equipped with pedestal, and push rod is welded at the top of pedestal, and the top of push plate is equipped with fixed bin, Gu
The top for determining box is fixedly connected on the bottom surface of top plate, and the top of push rod is arranged in the inside of fixed bin, the top of push rod with it is solid
Determine to be equipped with second spring between box top, push rod is equipped with resetting spring, and the surrounding of top plate has been respectively fixedly connected with support plate, props up
The bottom of fagging is equipped with bottom plate, offers rectangular channel respectively inside the surrounding of side plate, bottom plate is arranged in the inside of rectangular channel, bottom plate
Bottom and the bottom of rectangular channel between be equipped with the first spring.
2. a kind of mechanical equipment bottom damping device according to claim 1, which is characterized in that the top four of the top plate
Angle Position is respectively equipped with threaded hole.
3. a kind of mechanical equipment bottom damping device according to claim 1, which is characterized in that the bottom of the heelpiece is set
There are buffer layer, buffer layer to be made of natural rubber material.
4. a kind of mechanical equipment bottom damping device according to claim 1, which is characterized in that the resetting spring setting
Between fixed bin and pedestal.
5. a kind of mechanical equipment bottom damping device according to claim 1, which is characterized in that the outer snare of the baffle
There is sealing ring.
6. a kind of mechanical equipment bottom damping device according to claim 1, which is characterized in that before the defeated pressure storehouse work
It need to carry out supercharging work so that the original air pressure in inside in defeated pressure storehouse is higher than supercharging storehouse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810346506.6A CN108412931A (en) | 2018-04-18 | 2018-04-18 | A kind of mechanical equipment bottom damping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810346506.6A CN108412931A (en) | 2018-04-18 | 2018-04-18 | A kind of mechanical equipment bottom damping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108412931A true CN108412931A (en) | 2018-08-17 |
Family
ID=63134247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810346506.6A Withdrawn CN108412931A (en) | 2018-04-18 | 2018-04-18 | A kind of mechanical equipment bottom damping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108412931A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109078855A (en) * | 2018-10-26 | 2018-12-25 | 安徽省保莱康生物科技有限公司 | A kind of classifying screen of bean cake device being used to prepare pannage |
| CN109176686A (en) * | 2018-09-13 | 2019-01-11 | 泉州市华祥工业设计有限公司 | Highly-safe intelligent Scissoring device |
| CN109225038A (en) * | 2018-09-09 | 2019-01-18 | 宁波革创新材料科技有限公司 | A kind of coating material agitator of quickly discharging |
| CN109304346A (en) * | 2018-09-04 | 2019-02-05 | 嘉善铂汉塑胶五金有限公司 | A kind of protection structure of mechanical equipment |
| CN110525910A (en) * | 2019-07-17 | 2019-12-03 | 江苏德力重工有限公司 | A kind of conveying machinery has the cushion socket of multistage shockproof cushioning decompression |
| CN113465168A (en) * | 2021-06-24 | 2021-10-01 | 中铁建工集团有限公司 | Heating and ventilation engineering is with heating and ventilation air conditioner installation base |
-
2018
- 2018-04-18 CN CN201810346506.6A patent/CN108412931A/en not_active Withdrawn
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109304346A (en) * | 2018-09-04 | 2019-02-05 | 嘉善铂汉塑胶五金有限公司 | A kind of protection structure of mechanical equipment |
| CN109225038A (en) * | 2018-09-09 | 2019-01-18 | 宁波革创新材料科技有限公司 | A kind of coating material agitator of quickly discharging |
| CN109225038B (en) * | 2018-09-09 | 2021-10-15 | 益阳嘉美环保建筑装饰材料有限公司 | Coating stirring device capable of discharging rapidly |
| CN109176686A (en) * | 2018-09-13 | 2019-01-11 | 泉州市华祥工业设计有限公司 | Highly-safe intelligent Scissoring device |
| CN109176686B (en) * | 2018-09-13 | 2020-12-01 | 泉州市华祥工业设计有限公司 | High intelligent device of tailorring of security |
| CN109078855A (en) * | 2018-10-26 | 2018-12-25 | 安徽省保莱康生物科技有限公司 | A kind of classifying screen of bean cake device being used to prepare pannage |
| CN110525910A (en) * | 2019-07-17 | 2019-12-03 | 江苏德力重工有限公司 | A kind of conveying machinery has the cushion socket of multistage shockproof cushioning decompression |
| CN113465168A (en) * | 2021-06-24 | 2021-10-01 | 中铁建工集团有限公司 | Heating and ventilation engineering is with heating and ventilation air conditioner installation base |
| CN113465168B (en) * | 2021-06-24 | 2022-06-03 | 中铁建工集团有限公司 | Heating and ventilation engineering is with heating and ventilation air conditioner installation base |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108412931A (en) | A kind of mechanical equipment bottom damping device | |
| CN206487997U (en) | A kind of plant equipment damping device with Telescopic | |
| CN205739884U (en) | A kind of elevator maltilevel security buffer unit | |
| CN206721660U (en) | A kind of shock-absorbing bridge support | |
| CN107370043A (en) | A kind of box-type substation multi-stage, efficient damping base | |
| CN104329403B (en) | A kind of series parallel type Multistage damping frame | |
| CN106936080A (en) | A kind of electrical control equipment cabinet with shock-absorbing function | |
| CN205243120U (en) | Shock attenuation antidetonation profiled steel structure house | |
| CN204226542U (en) | Comprise the three-dimensional shock isolation pedestal of spring damping guide rod device | |
| CN107327665A (en) | A kind of electromechanical equipment damping device | |
| CN204239600U (en) | A kind of damping device | |
| CN204140761U (en) | Guide rail spring damping three-dimensional shock isolation pedestal | |
| CN208074073U (en) | A kind of mechanical equipment bottom damping device | |
| CN103818336B (en) | The multistage junk protective device of Compressible operator's compartment | |
| CN204284299U (en) | A kind of efficient anti-impact bullet liquid composite buffer | |
| CN115788521B (en) | Roadway combined energy dissipation and shock absorption supporting device for preventing rock burst | |
| CN206773609U (en) | A kind of industrial computer quake-proof seat | |
| CN104389941A (en) | Shock absorber | |
| CN204200941U (en) | A kind of series parallel type Multistage damping frame | |
| CN202416383U (en) | Earthquake isolation mechanism for building foundation | |
| CN211550373U (en) | Shock isolation device for coal mine safety production | |
| CN213836357U (en) | Highway construction is with interception buffer structure of prevention massif rockfall | |
| CN204200945U (en) | A kind of vibration damper | |
| CN207674034U (en) | A kind of Mars Miner cushion socket | |
| CN203856783U (en) | Low-pressure accumulator structure for hydraulic system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180817 |