CN106523566B - Primary and secondary spring assembly and its spring base - Google Patents
Primary and secondary spring assembly and its spring base Download PDFInfo
- Publication number
- CN106523566B CN106523566B CN201610914133.9A CN201610914133A CN106523566B CN 106523566 B CN106523566 B CN 106523566B CN 201610914133 A CN201610914133 A CN 201610914133A CN 106523566 B CN106523566 B CN 106523566B
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- spring
- sub
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- female
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- 230000004323 axial length Effects 0.000 claims description 9
- 230000000694 effects Effects 0.000 description 4
- 238000004146 energy storage Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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
- F16F3/00—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
- F16F3/02—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of steel or of other material having low internal friction
- F16F3/04—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of steel or of other material having low internal friction composed only of wound springs
- F16F3/06—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of steel or of other material having low internal friction composed only of wound springs of which some are placed around others in such a way that they damp each other by mutual friction
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
Abstract
The present invention relates to primary and secondary spring assembly and its spring bases, including with female spring, the spring base of sub-spring free end connection, spring base include respectively with son, the sub-spring of female spring connection is screwed on column, female spring base, sub-spring is screwed on column upper end equipped with the identical sub-spring helicla flute screwed in of the spiral spring ring of several circles for sub-spring lower end, sub-spring is screwed on column lower end equipped with the connection structure for connecting corresponding stress object, sub-spring is screwed on column equipped with the pushing tow structure for applying jacking force downward, female spring base is equipped with the Stop structure coordinated with pushing tow structure block, wherein sub-spring be screwed on column downward pushing tow mother spring base when, sub-spring helicla flute keeps limit up and down to coordinate with the spring ring of sub-spring always；The present invention is screwed on column by screwing out sub-spring downward so that the be screwed on pushing tow structure of column of sub-spring pushes the stopping structure of female spring base to move down, and then female spring base drives female spring to stretch downwards, and then realizes the adjusting to the initial force value of female spring.
Description
Technical field
The present invention relates to primary and secondary spring assembly and its spring bases.
Background technology
Primary and secondary spring is set in together to realize a kind of spring of elastic effect for the female spring and sub-spring of different-diameter,
Compared to single spring, the screen resilience bigger and safety coefficient higher of primary and secondary spring under identical diameter, such as answered in mattress
With the screen resilience and support force of the mattress that primary and secondary spring effectively improves, collapsing for common spring mattress is avoided, in addition, ending
The cut-off velocity and reliability of shut-off valve can be improved in valve using primary and secondary spring.
Chinese patent（CN200965844Y）The high-voltage breaker spring operating mechanism of announcement, electricity in the spring actuating structure
Machine drives two-stage gear drive, and then the driving pawl drive cam shaft rotation on gear wheel, camshaft drive energy-storage crank arm that will close
Lock spring is pulled to energy storage position, to make breaker be in energy storage state；Currently, design of the primary and secondary spring in spring operating mechanism
It is widely applied in the process, the axial both ends of primary and secondary spring are respectively fixing end and primary and secondary spring for fixing primary and secondary spring
The free end freely stretched, son, female spring are helical spring, and primary and secondary spring carries out energy storage, this fixed primary and secondary by stretching
Although the initial force value of primary and secondary spring entirety can be adjusted in the mode of spring, when primary and secondary spring is fixed for a long time elastic
After failure occurs for force value, this mode cannot be finely adjusted initial force value to compensate the attenuation of elastic force value, in addition most
Primary and secondary spring needs the tool of profession or tooling to be installed when being fixedly mounted, and not side is dismantled after the installation of primary and secondary spring
Just, part is not easy to replace.
Invention content
The purpose of the present invention is to provide primary and secondary spring assembly and its spring bases, right after primary and secondary spring is fixedly mounted to solve
The problem of initial force value of female spring is not easy to adjust.
To achieve the above object, the technical solution of primary and secondary spring assembly and its spring base of the present invention is：Primary and secondary spring assembly,
Including the sub-spring extended up and down and female spring, sub-spring is helical spring, and sub-spring and female spring include being distributed up and down
The free end of fixing end and free end, the sub-spring and female spring is connected with the spring for adjusting the initial force value of female spring
Seat, spring base include that sub-spring connect respectively with the free end of son, female spring is screwed on column, mother's spring base, and sub-spring is screwed on column
Lower end is equipped with the connection structure for connecting corresponding stress object, and sub-spring is screwed on column upper end equipped with several circles for sub-spring lower end
The identical sub-spring helicla flute screwed in of spiral spring ring, several coil spring circles and the sub-spring spiral flute profile being adapted to
At the threaded engagement section for coordinating the number of turns with certain spring of upper and lower limit cooperation；Sub-spring is screwed on column equipped with application top downward
The pushing tow structure of thrust, female spring base are equipped with the Stop structure coordinated with pushing tow structure block；The bullet of the threaded engagement section
The spring cooperation number of turns has what is set the spring ring of sub-spring free end can be made to keep limit cooperation up and down with sub-spring helicla flute
The minimum cooperation number of turns, the sub-spring is screwed on that column moved downward by rotation can be not less than the minimum cooperation number of turns
Downward pushing tow mother spring base moves down while reducing the sub-spring cooperation number of turns of the threaded engagement section in range.
The sub-spring is screwed on column in the up big and down small multi-diameter shaft form with cascaded surface directed downwardly, and wherein sub-spring revolves
It connects column upper end and is equipped with sub-spring helicla flute；Female spring base is cylinder, and female spring base axial end face is equipped with and is screwed on for sub-spring
The through-hole that column lower end passes through, through-bore axis are overlapped with female spring base axis, and the upper axial end face of female spring base is revolved against sub-spring
The cascaded surface of column is connect, wherein the upper axial end face of female spring base is the Stop structure, the be screwed on cascaded surface of column of sub-spring is
The pushing tow structure.
The sub-spring column lower end that is screwed on is more than the axial length of female spring base, sub-spring rotation across the axial length of through-hole
It is in outer hexagon formula to connect column lower end and be pierced by the part of through-hole.
The sub-spring be screwed on column lower part be equipped with for on stress object threaded adjusting column or threaded adjusting bore connect
Helicitic texture, the helicitic texture are connection structure.
The helicitic texture is that sub-spring is screwed on the threaded hole that column lower face is equipped with.
Spring base, spring base have for the upper end of son, the connection of female spring and for being connected with corresponding stress object
Lower end, the spring base include that sub-spring connect respectively with sub-spring free end and female spring free end is screwed on column and mother's spring
Seat, sub-spring be screwed on column upper end be equipped with for sub-spring the spiral spring ring of several circles coincide screw in sub-spring helicla flute,
The lower end of sub-spring borded pile is equipped with connection structure for connecting corresponding stress object, and the sub-spring column that is screwed on is equipped with and applies downward
The pushing tow structure of jacking force, female spring base are equipped with the Stop structure coordinated with pushing tow structure block
The sub-spring is screwed on column in the up big and down small multi-diameter shaft form with cascaded surface directed downwardly, and wherein sub-spring revolves
It connects column upper end and is equipped with sub-spring helicla flute；Female spring base is cylinder, and female spring base axial end face is equipped with and is screwed on for sub-spring
The through-hole that column lower end passes through, through-bore axis are overlapped with female spring base axis, and the upper axial end face of female spring base is revolved against sub-spring
The cascaded surface of column is connect, wherein the upper axial end face of female spring base is the Stop structure, the be screwed on cascaded surface of column of sub-spring is
The pushing tow structure.
The sub-spring column lower end that is screwed on is more than the axial length of female spring base, sub-spring rotation across the axial length of through-hole
It is in outer hexagon formula to connect column lower end and be pierced by the part of through-hole.
The sub-spring be screwed on column lower part be equipped with for on stress object threaded adjusting column or threaded adjusting bore connect
Helicitic texture, the helicitic texture are connection structure.
The screw connection structure is that sub-spring is screwed on the threaded hole that column lower face is equipped with.
The beneficial effects of the invention are as follows：Primary and secondary spring assembly and its spring base of the present invention, including sub-spring and female spring, son
The free end of spring and female spring is connected with spring base, and spring base includes the bullet being connect respectively with the free end of son, female spring
Spring is screwed on column, female spring base, and the sub-spring spiral spring ring of several circles that column upper end is equipped with for sub-spring lower end that is screwed on coincide
The sub-spring helicla flute of screw-in, sub-spring are screwed on column lower end equipped with the connection structure for connecting corresponding stress object, sub-spring rotation
It connects column and is equipped with the pushing tow structure for applying jacking force downward, female spring base is equipped with the block knot coordinated with pushing tow structure block
Structure, wherein sub-spring be screwed on column downward pushing tow mother spring base when, the number of turns of the spring ring cooperation of sub-spring helicla flute and sub-spring
It reduces and keeps limit up and down to coordinate with the spring ring of sub-spring always, in addition the sub-spring column that is screwed on screws out pushing tow mother's spring downward
When seat, the elastic force value of sub-spring does not change；The present invention is screwed on column by screwing out sub-spring downward so that sub-spring is screwed on
The pushing tow structure of column pushes the stopping structure of female spring base to move down, and then female spring base drives female spring to stretch downwards, into
And realize the adjusting to the initial force value of female spring.
Description of the drawings
Fig. 1 is the structural schematic diagram of primary and secondary spring assembly；
Fig. 2 is the graphics of female spring base；
Fig. 3 is that sub-spring is screwed on the graphics of column；
Fig. 4 is the structural schematic diagram of spring base.
In figure：1- fixed plates, mother's 2- spring, 3- sub-springs, 4- sub-springs are screwed on column, mother's 5- spring base, 6- threaded holes, 7-
Female spring helicla flute, 8- sub-springs helicla flute, 9- mounting holes, 10- through-holes.
Specific implementation mode
The specific embodiment of primary and secondary spring assembly of the present invention, as shown in Figures 1 to 4, primary and secondary spring assembly includes fixed plate
1, the bottom surface of fixed plate 1 is equipped with groove, and the side of fixed plate 1 is equipped with the mounting hole 9 for mounting plate；Primary and secondary spring assembly
Further include female spring 2 and sub-spring 3, neutron, female spring are helical spring, and female spring 2 and sub-spring 3 are respectively provided with and are used for
The fixing end of fixed installation and free end for stretching, wherein fixing end and free end along son, female spring shaft to upper and lower distribution,
The fixing end of female spring 2 and sub-spring 3 is respectively fixedly disposed at the bottom end of fixed plate 1, and wherein sub-spring 3 is located at fixed plate 1
In groove；The free end of female spring 2 and sub-spring 3 is connected with the spring base for adjusting female spring starting force.
Spring base includes that sub-spring is screwed on column 4, and sub-spring fixed column 4 is in up big and down small and with the ladder of cascaded surface downward
Axis form, sub-spring are screwed on 4 upper end of column equipped with the identical bullet screwed in of the spiral spring ring of several circles for 3 lower end of sub-spring
Spring helicla flute 8, several coil spring circles are limit cooperation up and down to be formed with the sub-spring helicla flute 8 being adapted to and with certain
Spring coordinates the threaded engagement section of the number of turns, and the effect of wherein sub-spring helicla flute 8 is to be revolved sub-spring by sub-spring helicla flute
Connect the free end that column is screwed into sub-spring, to make sub-spring be screwed on column and sub-spring formed above and below limit coordinate, sub-spring
Be screwed on the threaded hole 6 being provided on the axial end face of column 4 for being connect with adjusting bolt, and wherein threaded hole 6 is the connection knot
Structure, adjusting bolt are the threaded adjusting column；Spring base further includes female spring base 5, and female spring base 5 is cylinder, female spring
The upper end periphery of seat 5 is equipped with the identical female spring spiral screwed in of the spiral spring ring of several circles for 2 lower end of female spring
Slot 7, wherein the effect of female spring helicla flute is that female spring base is screwed into the free end of female spring by female spring helicla flute, from
And so that female spring base is formed upper and lower limit with female spring and coordinate, it is provided on the axial end face of female spring base 5 and is screwed on for sub-spring
The through-hole 10 that 4 lower end of column passes through, the wherein axis of through-hole 10 are overlapped with the axis of female spring base 5, and sub-spring 4 lower end of column that is screwed on is worn
Go out female spring base 5 part be in outer hexagon formula, and sub-spring be screwed on 4 lower end of column across through-hole 10 axial length be more than mother
The axial length of spring base 5, the be screwed on lower end of column of sub-spring are designed to outer hexagon formula and are more than female spring base across length
The effect of length is can be easily installed and adjust sub-spring to be screwed on column；The outer circumference surface of 5 lower end of female spring base is also in outer six side
Form, mesh with convenient for female spring base 5 to be screwed in the free end of female spring 2.
When primary and secondary spring assembly is installed, the fixing end of sub-spring 3 is first fixed on 1 bottom end of fixed plate, then passes through bullet
The sub-spring column 4 that is screwed on is screwed onto the free end of sub-spring 3 by spring helicla flute 8, and the fixing end of female spring 2 is then fixed on fixation
The bottom end of plate 1, then the through-hole 10 of female spring base 5 and sub-spring be screwed on column 4 lower end by the way of axis hole by 5, female spring
It is sleeved on sub-spring to be screwed on column 4, and female spring base 5 is screwed onto to the free end of female spring 2 by female spring helicla flute 7, and make
The upper axial end face of female spring base abuts against sub-spring and is screwed on the cascaded surface of column, wherein when sub-spring be screwed on column 4 screw out downward when,
Sub-spring be screwed on column 4 cascaded surface by the upper axial end face of pushing tow mother spring base 5, and the upper axial end face of female spring base 5 is then right
Sub-spring be screwed on column 4 cascaded surface formed shelves stop, sub-spring be screwed on column 4 cascaded surface be the pushing tow structure, female spring base 5
Upper axial end face be the stopping structure；Finally by sub-spring be screwed on column 4 threaded hole and adjusting bolt cooperation will
The sub-spring column that is screwed on is connected with corresponding stress object, to fix primary and secondary spring assembly.
When using primary and secondary spring assembly, primary and secondary spring assembly is fixedly mounted, and by adjusting bolt come regulator, female bullet
The initial force value of spring, when primary and secondary spring assembly is in tensional state for a long time, the elastic force value of sub, female spring can decline
Subtract, at this moment needs individually to adjust the initial force value of female spring 2 to compensate the attenuation of elastic force value, adjust the initial of female spring 2
When force value, the sub-spring column 4 that is screwed on is screwed out downward, sub-spring be screwed on column 4 cascaded surface pushing tow mother spring base 5 upper axial end
Face, to drive female spring base 5 to move downward, and then drive mother spring 2 stretches downward, finally realizes and adjusts the first of female spring 5
The purpose of beginning force value；Wherein the number of coils of the sub-spring 3 of threaded engagement section is not less than the initial force value for being used for adjusting female spring 2
The spring ring of required sub-spring 2, when so that sub-spring is screwed on, column 5 adjusts the initial force value of female spring 2, sub-spring rotation
The sub-spring helicla flute 8 for connecing column 4 keeps limit up and down to coordinate with the spring ring of 3 free end of sub-spring always.
In addition, in the other embodiment of primary and secondary spring assembly of the present invention, female spring base can be replaced with baffle, baffle
It sets on end face and is screwed on the through-hole that column lower end penetrates for sub-spring, baffle is fixed at female spring free end, and the end face of baffle
It abuts against sub-spring to be screwed on the cascaded surface of column, the end face of the cascaded surface energy pushing tow baffle of column so that sub-spring is screwed on, keep off
Plate end face shelves stop sub-spring and are screwed on the cascaded surface of column.
In addition, in the other embodiment of primary and secondary spring assembly of the present invention, sub-spring is screwed on female spring base that is pierced by of column
The outer circumference surface of lower end is equipped with external screw thread, the cooperation realization pair for the external screw thread and adjusting nut of column lower end that be screwed on by sub-spring
Sub-spring is screwed on the connection of column and corresponding stress object, and the be screwed on external screw thread of column lower end of the sub-spring is the connection knot
Structure.
The structure type of the specific embodiment of spring base of the present invention, spring base is institute in above-mentioned primary and secondary spring assembly embodiment
The structure type for the spring base stated.
Claims (10)
1. primary and secondary spring assembly, including the sub-spring extended up and down and female spring, sub-spring is helical spring, sub-spring and female bullet
Spring includes the fixing end being distributed up and down and free end, it is characterised in that：The free end of sub-spring and female spring, which is connected with, to be used for
The spring base of the initial force value of female spring is adjusted, spring base includes that the sub-spring being connect respectively with the free end of son, female spring is screwed on
Column, female spring base, the sub-spring column lower end that is screwed on are equipped with connection structure for connecting corresponding stress object, and sub-spring is screwed on column upper end
Equipped with the identical sub-spring helicla flute screwed in of the spiral spring ring of several circles for sub-spring lower end, several circle spirals
The spiral with certain spring cooperation number of turns that the spring ring of shape forms limit cooperation up and down with the sub-spring helicla flute being adapted to is matched
Close section；Sub-spring is screwed on column equipped with the pushing tow structure for applying jacking force downward, and female spring base is equipped with and pushing tow structure block
The Stop structure of cooperation；The spring cooperation number of turns of the threaded engagement section has the spring that can make sub-spring free end of setting
Circle keeps the minimum cooperation number of turns of limit cooperation up and down, the sub-spring to be screwed on column by rotating fortune downwards with sub-spring helicla flute
The enough sub-springs that the threaded engagement section is reduced in the range of not less than the minimum cooperation number of turns of kinetic energy coordinate the same of the number of turns
When downward pushing tow mother spring base move down.
2. primary and secondary spring assembly according to claim 1, it is characterised in that：The sub-spring column that is screwed on has in up big and down small
The multi-diameter shaft form of cascaded surface directed downwardly, wherein sub-spring are screwed on column upper end equipped with sub-spring helicla flute；Female spring base is in cylinder
Shape, female spring base axial end face is equipped with to be screwed on the through-hole that column lower end passes through, through-bore axis and female spring base axis for sub-spring
It overlaps, the upper axial end face of female spring base is screwed on the cascaded surface of column against sub-spring, wherein the upper axial end face of female spring base is
The Stop structure, sub-spring be screwed on column cascaded surface be the pushing tow structure.
3. primary and secondary spring assembly according to claim 2, it is characterised in that：Sub-spring be screwed on column lower end pass through through-hole axis
It is more than the axial length of female spring base to length, sub-spring is screwed on, and to be pierced by the part of through-hole be in outer hexagon formula for column lower end.
4. primary and secondary spring assembly according to claim 1, it is characterised in that：Sub-spring be screwed on column lower part be equipped with for by
The helicitic texture of threaded adjusting column or threaded adjusting bore connection on power object, the helicitic texture is connection structure.
5. primary and secondary spring assembly according to claim 4, it is characterised in that：The helicitic texture is that sub-spring is screwed on column
The threaded hole that lower face is equipped with.
6. spring base, spring base has under with son, the upper end of female spring connection and for being connected with corresponding stress object
End, it is characterised in that：Spring base include the sub-spring being connect respectively with sub-spring free end and female spring free end be screwed on column and
Female spring base, sub-spring are screwed on column upper end equipped with the identical sub-spring spiral shell screwed in of the spiral spring ring of several circles for sub-spring
Spin slot, the lower end of sub-spring borded pile are equipped with the connection structure for connecting corresponding stress object, and sub-spring is screwed on column equipped with court
The lower pushing tow structure for applying jacking force, female spring base are equipped with the Stop structure coordinated with pushing tow structure block.
7. spring base according to claim 6, it is characterised in that：Sub-spring be screwed on column in it is up big and down small have it is directed downwardly
The multi-diameter shaft form of cascaded surface, wherein sub-spring are screwed on column upper end equipped with sub-spring helicla flute；Female spring base is cylinder, female bullet
Spring abutment axial end face is equipped with to be screwed on the through-hole that column lower end passes through for sub-spring, and through-bore axis is overlapped with female spring base axis, mother
The upper axial end face of spring base is screwed on the cascaded surface of column against sub-spring, wherein the upper axial end face of female spring base is the gear
Only structure, sub-spring be screwed on column cascaded surface be the pushing tow structure.
8. spring base according to claim 7, it is characterised in that：Sub-spring be screwed on column lower end pass through through-hole axial length
More than the axial length of female spring base, sub-spring be screwed on column lower end be pierced by through-hole part be in outer hexagon formula.
9. spring base according to claim 6, it is characterised in that：Sub-spring be screwed on column lower part be equipped with for stress object
Threaded adjusting column or threaded adjusting bore connection helicitic texture, the helicitic texture be connection structure.
10. spring base according to claim 9, it is characterised in that：The helicitic texture is that sub-spring is screwed on column lower end
The threaded hole that face is equipped with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610914133.9A CN106523566B (en) | 2016-10-20 | 2016-10-20 | Primary and secondary spring assembly and its spring base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610914133.9A CN106523566B (en) | 2016-10-20 | 2016-10-20 | Primary and secondary spring assembly and its spring base |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106523566A CN106523566A (en) | 2017-03-22 |
| CN106523566B true CN106523566B (en) | 2018-08-03 |
Family
ID=58332797
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610914133.9A Active CN106523566B (en) | 2016-10-20 | 2016-10-20 | Primary and secondary spring assembly and its spring base |
Country Status (1)
| Country | Link |
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| CN (1) | CN106523566B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109770616A (en) * | 2019-03-05 | 2019-05-21 | 李春山 | A kind of sping mattress of double-layer siamesed spring production |
| CN110094454B (en) * | 2019-05-23 | 2021-04-23 | 太原科技大学 | Multi-stage buffering vibration reduction mechanism for rotating shaft of vehicle |
| CN113972092A (en) * | 2020-07-24 | 2022-01-25 | 平高集团有限公司 | Spring operating mechanism locking device and spring operating mechanism |
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| US5361500A (en) * | 1992-07-17 | 1994-11-08 | Aktiebolaget Electrolux | De-vibration element |
| CN2597521Y (en) * | 2003-01-29 | 2004-01-07 | 株洲时代新材料科技股份有限公司 | Damping isolator of steel spring |
| CN201037425Y (en) * | 2006-11-13 | 2008-03-19 | 浙江丰隆液压元件有限公司 | Safety valve |
| CN101169168A (en) * | 2007-11-22 | 2008-04-30 | 重庆长安汽车股份有限公司 | Mechanical type automobile suspension rigidity governing device |
| CN101301747A (en) * | 2007-05-11 | 2008-11-12 | 希尔蒂股份公司 | Vibrating hand machine tool with anti-vibration element |
| CN202187876U (en) * | 2011-08-15 | 2012-04-11 | 合肥长源液压股份有限公司 | High-efficient constant output plunger pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8132750B2 (en) * | 2009-06-24 | 2012-03-13 | Alstom Technology Ltd | Force monitor for pulverizer integral spring assembly |
| JP2012167746A (en) * | 2011-02-15 | 2012-09-06 | Kyosan Denki Co Ltd | Spring assembly unit and spring for pressure adjusting valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5361500A (en) * | 1992-07-17 | 1994-11-08 | Aktiebolaget Electrolux | De-vibration element |
| CN2597521Y (en) * | 2003-01-29 | 2004-01-07 | 株洲时代新材料科技股份有限公司 | Damping isolator of steel spring |
| CN201037425Y (en) * | 2006-11-13 | 2008-03-19 | 浙江丰隆液压元件有限公司 | Safety valve |
| CN101301747A (en) * | 2007-05-11 | 2008-11-12 | 希尔蒂股份公司 | Vibrating hand machine tool with anti-vibration element |
| CN101169168A (en) * | 2007-11-22 | 2008-04-30 | 重庆长安汽车股份有限公司 | Mechanical type automobile suspension rigidity governing device |
| CN202187876U (en) * | 2011-08-15 | 2012-04-11 | 合肥长源液压股份有限公司 | High-efficient constant output plunger pump |
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| Publication number | Publication date |
|---|---|
| CN106523566A (en) | 2017-03-22 |
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