CN110159698A - A kind of gas spring of safe and silent - Google Patents
A kind of gas spring of safe and silent Download PDFInfo
- Publication number
- CN110159698A CN110159698A CN201910522135.7A CN201910522135A CN110159698A CN 110159698 A CN110159698 A CN 110159698A CN 201910522135 A CN201910522135 A CN 201910522135A CN 110159698 A CN110159698 A CN 110159698A
- Authority
- CN
- China
- Prior art keywords
- inner cylinder
- piston
- cylinder tube
- piston rod
- gas 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.)
- Granted
Links
- 239000007789 gas Substances 0.000 claims abstract description 46
- 238000007789 sealing Methods 0.000 claims abstract description 26
- 230000030279 gene silencing Effects 0.000 claims abstract description 17
- 239000010687 lubricating oil Substances 0.000 claims abstract description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000007790 scraping Methods 0.000 claims abstract description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 4
- 230000037361 pathway Effects 0.000 claims description 8
- 230000009467 reduction Effects 0.000 abstract description 5
- 238000004880 explosion Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 230000006378 damage Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004080 punching 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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
- F16F9/062—Bi-tubular units
-
- 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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
- F16F9/066—Units characterised by the partition, baffle or like element
- F16F9/067—Partitions of the piston type, e.g. sliding pistons
-
- 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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
-
- 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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3278—Details for lubrication
-
- 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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/43—Filling or drainage arrangements, e.g. for supply of gas
- F16F9/437—Drainage 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
- F16F2230/00—Purpose; Design features
- F16F2230/04—Lubrication
-
- 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
- F16F2230/48—Thermal insulation
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a kind of gas springs of safe and silent, including outer cylinder, inner cylinder tube, piston, piston rod and connector, the inner cylinder tube bottom is equipped with air cavity, filled with high pressure nitrogen in air cavity, the inner cylinder tube is interior to be equipped with limited block, and the limited block both ends are connect with piston rod and inner cylinder tube inner wall respectively, limited block, piston rod and piston form silencing cavity, it is equipped with several reset springs in silencing cavity, lubricating oil is filled in the outer cylinder, outer cylinder and silencing cavity corresponding position are equipped with several discharge orifices；Sealing shroud is equipped at the top of the inner cylinder tube, sealing shroud and piston rod junction are equipped with annular groove, and annular groove upper and lower ends are all provided with flexible scraping blade；Gas spring of the invention, use is safe, and air-tightness is good, avoids the generation of the situations such as gas spring explosion gas leakage, while also having good noise reduction and heat-conducting effect, realizes low noise operation.
Description
Technical field
The present invention relates to a kind of gas spring, the gas spring of specifically a kind of safe and silent.
Background technique
Gas spring is a kind of industry accessories that can play the functions such as support, buffering, braking, height adjustment and angular adjustment.
Due to the fundamental difference in principle, gas spring has a significant advantage than common spring: speed relatively slowly, dynamic force change
Less (generally within 1:1.2), be easy to control.
There are following shortcomings for existing gas spring: when stress disappears or stress overloads, force unbalance occurs
The case where, at this time if gas spring fails, piston and piston rod will directly go out simultaneously damage product, to surrounding people when serious
It damages；Existing gas spring generallys use the opening that sealing ring is blocked in pressure pipe and seals with prolonged use
It is easy to happen dry friction between circle and piston rod, cause frictional force of piston rod when flexible between sealing ring big and is easy hair
Noise out；In addition to this, gas spring itself is without position-limit mechanism, and common gas spring in the case where stretching repeatedly on existing market
The case where will appear gas leakage locking, it is easy to the problem of injuring people by a crashing object occur.
Summary of the invention
The purpose of the present invention is to provide a kind of gas springs of safe and silent, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the invention provides the following technical scheme: a kind of gas spring of safe and silent, including outer shell
Cylinder, inner cylinder tube, piston, piston rod and connector, the piston rod bottom are connect with piston, and the piston is located in inner cylinder tube,
The inner cylinder tube bottom is equipped with air cavity, and air cavity is interior filled with high pressure nitrogen, the interior limited block for being equipped with annular of the inner cylinder tube, the limit
Position block both ends are connect with piston rod and inner cylinder tube inner wall respectively, and limited block, piston rod and piston form silencing cavity, are set in silencing cavity
There are several reset springs, reset spring both ends are connect with piston and limited block respectively, and the outer cylinder housing is outside inner cylinder tube, outside
Lubricating oil is filled in cylinder barrel, outer cylinder and silencing cavity corresponding position are equipped with several discharge orifices；It is equipped at the top of the inner cylinder tube close
Big envelope, sealing shroud and piston rod junction are equipped with annular groove, and annular groove upper and lower ends are all provided with flexible scraping blade, sealing shroud
Two sides are equipped with feed pathway, and the inner cylinder tube and feed pathway corresponding position are equipped with inlet opening, and inlet opening one end extends to outer cylinder
It is interior.
As a further solution of the present invention: the inner cylinder tube bottom is equipped with bleeder port, and the bleeder port is back taper knot
Structure, bleeder port is interior to be equipped with sealing-plug, and sealing-plug and bleeder port junction are equipped with sealing ring.
As a further solution of the present invention: the sealing-plug surface is equipped with spiral discouraged slot, and sealing-plug bottom is set
There is circular pull ring.
As a further solution of the present invention: the connector is connect with piston rod part, is hinged with ten thousand at the top of connector
To head.
As a further solution of the present invention: spacing collar is equipped at the top of the sealing shroud, spacing collar side is equipped with number
A limit hole, limit hole is interior to be equipped with lock-screw.
Compared with prior art, the beneficial effects of the present invention are: gas spring of the invention, use is safe, air-tightness is good, keeps away
Exempt from the generation of the situations such as gas spring explosion gas leakage, while also there is good noise reduction and heat-conducting effect, realizes low noise operation.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is schematic diagram of internal structure of the invention.
Fig. 3 is the structural schematic diagram of sealing-plug in the present invention.
In figure: 1- outer cylinder, 2- piston rod, 3- sealing shroud, 4- pull ring, 5- spacing collar, 6- connector, 7- Universal-head,
8- inner cylinder tube, 9- piston, 10- silencing cavity, 11- limited block, 12- annular groove, 13- scraping blade, 14- limit hole, 15- locking screw
Nail, 16- feed pathway, 17- reset spring, 18- sealing-plug, 19- bleeder port, 20- lose heart slot.21- air cavity.
Specific embodiment
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 description, 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. 1~2, in the embodiment of the present invention, a kind of gas spring of safe and silent, including outer cylinder 1, inner cylinder tube 8,
Piston 9, piston rod 2 and connector 6,2 bottom of piston rod are connect with piston 9, and the piston 9 is located in inner cylinder tube 8, described
8 bottom of inner cylinder tube is equipped with air cavity 21, and air cavity 21 is interior filled with high pressure nitrogen, the interior limited block 11 for being equipped with annular of the inner cylinder tube 8, institute
It states 11 both ends of limited block to connect with piston rod 2 and 8 inner wall of inner cylinder tube respectively, limited block 11, piston rod 2 and piston 9 form noise reduction
Chamber 10, silencing cavity 10 is interior to be equipped with several reset springs 17, and 17 both ends of reset spring are connect with piston 9 and limited block 11 respectively, institute
1 housing of outer cylinder is stated outside inner cylinder tube 8, lubricating oil is filled in outer cylinder 1, outer cylinder 1 is equipped with 10 corresponding position of silencing cavity
Several discharge orifices；Sealing shroud 3 is equipped at the top of the inner cylinder tube 8, sealing shroud 3 and 2 junction of piston rod are equipped with annular groove 12, ring
12 upper and lower ends of connected in star are all provided with flexible scraping blade 13, and 3 two sides of sealing shroud are equipped with feed pathway 16, the inner cylinder tube 8 with into
16 corresponding position of liquid channel is equipped with inlet opening, and inlet opening one end extends in outer cylinder 1.
In the process of running, mainly by 6 attached article of connector, object pressure acts on piston rod to gas spring of the invention
2 and piston 9 on, gas generates pressure in 9 groups of air cavitys 21 of piston, since 9 both ends stress cross-sectional area of piston is different, so in work
It fills in 9 both ends and generates pressure difference, to generate elasticity to realize the dry movement of piston 9；After object pressure removes, piston rod 2 is again
Return to original state, it can be achieved that gas spring reuse.
If gas spring is acted on by the heavily loaded object beyond its ability to bear in use, stress will occur in piston 9
Energy imbalance, piston rod 2 will generate very big elastic force and pop up, the influence in order to avoid gas spring to operator's safety,
So the present invention is equipped with silencing cavity 10 in inner cylinder tube 8, when piston 9 drives piston rod 2 to move upwards, piston 9 disappears compressing
Reset spring 17 in sound chamber 10, and the reaction force by reset spring 17, buffering fall a part of elastic force of piston 9, make piston
Bar 2 can be run more slowly and stable；In addition to this, the reset spring 17 in silencing cavity 10 can also run piston rod 2
The noise generated in journey carries out noise reduction；When piston 9 moves, the vibration of generation is transmitted in the lubricating oil in silencing cavity 10, profit
Lubricating oil can also generate resistance to the operation of piston rod 2 since a part of noise is fallen in self property absorption, transport piston rod 2
Row is more steady；Lubricating oil flows in sealing shroud 3 from discharge orifice, outer cylinder 1 and feed pathway 16 after compression in silencing cavity 10,
Piston rod 2 is lubricated.
Since gas spring is typically employed in -40 ° to 80 °, when ambient temperature is too high or too low, gas spring also will affect
Can, so the present invention is cased with outer cylinder 1 outside inner cylinder tube 8, the work of heat preservation is played to inner cylinder tube 8 by lubricating oil in outer cylinder 1
With, avoid temperature in inner cylinder tube 8 from significantling change, meanwhile, lubricating oil can also pass through discharge orifice and inlet opening point in outer cylinder 1
Noise reduction and lubrication Liu Ru not be carried out in silencing cavity 10 and sealing shroud 3.
Since piston rod 2 will be moved up and down repeatedly gas spring during the motion, piston rod 2 will be with sealing shroud 3 at this time
Contact generates friction, and friction will will lead to noise and fever, so the present invention is equipped with ring in sealing shroud 3 and 2 contact position of piston rod
Connected in star 12 can be introduced lubricating oil in outer cylinder 1 by feed pathway 16 in annular groove 12, at this time piston rod 2 and sealing
It is lubricated between set 3 by lubricating oil, reduces friction, reduce and cause；While the scraping blade 13 of about 12 annular groove is not
Annular groove 12 can only be sealed, frizing can also be carried out to the piston rod 2 passed through, in case 2 surface of piston rod generates greasy dirt
Influence gas spring work.
8 bottom of inner cylinder tube is equipped with bleeder port 19, and the bleeder port 19 is inverted cone-shaped structure, is equipped in bleeder port 19 close
Blocking 18, sealing-plug 18 and 19 junction of bleeder port are equipped with sealing ring；Under normal conditions, people are to dismantle gas spring mostly in gas
Gas in gas spring is released in drilling on spring, has bulk gas in drilling at this time and lubricating oil splashes out, it is easy to operation
Personnel damage；In order to avoid injury, the present invention is equipped with bleeder port 19 in cylinder bottom, by sealing in rotation bleeder port 19
Plug 18, can release gas out of air cavity 21, avoid punching the use of influence gas spring on gas spring surface；Simultaneously as
Bleeder port 19 is inverted cone-shaped structure, and pressure is maximum in 19 opening of bleeder port in air cavity 21, need to only be blocked sealing-plug 18 at this time
Bleeder port 19 is the air-tightness that can guarantee entire air cavity 21；Sealing ring is for enhancing air-tightness.
It is connected at the top of the connector 6 and piston rod 2, Universal-head 7 is hinged at the top of connector 6；Connector 6 mainly says work
Stopper rod 2 is connect with other component, and the Universal-head 7 at 6 top of connector can make that different angle occurs to connecting component and piston rod 2
Inclination, convenient for the installation of remaining part.
Spacing collar 5 is equipped at the top of the sealing shroud 3,5 side of spacing collar is equipped with several limit holes 14, in limit hole 14
Equipped with lock-screw 15；If explosion phenomenon occurs in the process of running for gas spring, piston rod 2 will be ejected, so in piston
Bar 2 is externally provided with spacing collar 5, after 2 end of run of piston rod, limit hole 14 can be passed through by lock-screw 15, thus will
Piston rod 2 is fixed, and piston rod 2 is avoided surprisingly to pop up.
Referring to Fig. 3,18 surface of sealing-plug is equipped with spiral discouraged slot 20, sealing-plug in the embodiment of the present invention
18 bottoms are equipped with circular pull ring 4；Sealing-plug 18 when extracted, if directly extracting, then can make gas ejection cause air pressure
Greatly；It is equipped with the slot 20 that loses heart on 18 surface of sealing-plug in the present invention, can make sealing-plug 18 when extracted along the discouraged slowly rotation of slot 20
Out, gas is oozed through discouraged slot 20, and when sealing-plug 18 is thoroughly extracted, pressure has been decreased to atmospheric pressure at bleeder port 19
Power will not cause harm to the human body；It is convenient for the extraction of sealing-plug 18 equipped with pull ring 4.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (5)
1. a kind of gas spring of safe and silent, including outer cylinder (1), inner cylinder tube (8), piston (9), piston rod (2) and connector
(6), it is characterised in that: piston rod (2) bottom is connect with piston (9), and the piston (9) is located in inner cylinder tube (8), described
Inner cylinder tube (8) bottom is equipped with air cavity (21), filled with high pressure nitrogen, the interior limit for being equipped with annular of the inner cylinder tube (8) in air cavity (21)
Position block (11), limited block (11) both ends are connect with piston rod (2) and inner cylinder tube (8) inner wall respectively, limited block (11), piston
Bar (2) and piston (9) form silencing cavity (10), are equipped with several reset springs (17) in silencing cavity (10), reset spring (17) two
End is connect with piston (9) and limited block (11) respectively, outer cylinder (1) housing inner cylinder tube (8) outside, outer cylinder (1) is interior to be filled out
Filled with lubricating oil, outer cylinder (1) and silencing cavity (10) corresponding position are equipped with several discharge orifices；It is equipped at the top of the inner cylinder tube (8)
Sealing shroud (3), sealing shroud (3) and piston rod (2) junction are equipped with annular groove (12), and annular groove (12) upper and lower ends are all provided with
Flexible scraping blade (13), sealing shroud (3) two sides are equipped with feed pathway (16), and the inner cylinder tube (8) and feed pathway (16) are right
It should locate to be equipped with inlet opening, inlet opening one end extends in outer cylinder (1).
2. a kind of gas spring of safe and silent according to claim 1, it is characterised in that: inner cylinder tube (8) bottom is set
Have bleeder port (19), the bleeder port (19) is inverted cone-shaped structure, is equipped with sealing-plug (18) in bleeder port (19), sealing-plug (18)
Sealing ring is equipped with bleeder port (19) junction.
3. a kind of gas spring of safe and silent according to claim 2, it is characterised in that: sealing-plug (18) surface is set
There is spiral discouraged slot (20), sealing-plug (18) bottom is equipped with circular pull ring (4).
4. a kind of gas spring of safe and silent according to claim 1, it is characterised in that: the connector (6) and piston
Connection at the top of bar (2), connector (6) top are hinged with Universal-head (7).
5. a kind of gas spring of safe and silent according to claim 1, it is characterised in that: set at the top of the sealing shroud (3)
Have spacing collar (5), spacing collar (5) side is equipped with several limit holes (14), is equipped with lock-screw (15) in limit hole (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910522135.7A CN110159698B (en) | 2019-06-17 | 2019-06-17 | Safe and mute gas spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910522135.7A CN110159698B (en) | 2019-06-17 | 2019-06-17 | Safe and mute gas spring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110159698A true CN110159698A (en) | 2019-08-23 |
| CN110159698B CN110159698B (en) | 2024-03-15 |
Family
ID=67625825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910522135.7A Active CN110159698B (en) | 2019-06-17 | 2019-06-17 | Safe and mute gas spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110159698B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113466109A (en) * | 2021-08-11 | 2021-10-01 | 龙游县万基建设工程检测有限公司 | Building concrete impermeability detection device and detection method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108119591A (en) * | 2017-12-21 | 2018-06-05 | 佛山市佛禅健康管理有限公司 | A kind of spring of arbitrarily stopping the supple of gas or steam of console for mosquito expelling box |
| US20180355937A1 (en) * | 2017-06-08 | 2018-12-13 | Changzhou Lant Gas Spring Co.,Ltd. | Pressure-adjustable gas spring |
| CN208778566U (en) * | 2018-09-11 | 2019-04-23 | 北京磊焱氮气弹簧技术研究所 | A kind of twin-tub temperature-compensating gas spring |
| CN210371791U (en) * | 2019-06-17 | 2020-04-21 | 徐州天泓传动设备有限公司 | Safe and silent air spring |
-
2019
- 2019-06-17 CN CN201910522135.7A patent/CN110159698B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180355937A1 (en) * | 2017-06-08 | 2018-12-13 | Changzhou Lant Gas Spring Co.,Ltd. | Pressure-adjustable gas spring |
| CN108119591A (en) * | 2017-12-21 | 2018-06-05 | 佛山市佛禅健康管理有限公司 | A kind of spring of arbitrarily stopping the supple of gas or steam of console for mosquito expelling box |
| CN208778566U (en) * | 2018-09-11 | 2019-04-23 | 北京磊焱氮气弹簧技术研究所 | A kind of twin-tub temperature-compensating gas spring |
| CN210371791U (en) * | 2019-06-17 | 2020-04-21 | 徐州天泓传动设备有限公司 | Safe and silent air spring |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113466109A (en) * | 2021-08-11 | 2021-10-01 | 龙游县万基建设工程检测有限公司 | Building concrete impermeability detection device and detection method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110159698B (en) | 2024-03-15 |
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