CN108996359A - A kind of oil buffer - Google Patents
A kind of oil buffer Download PDFInfo
- Publication number
- CN108996359A CN108996359A CN201810933587.XA CN201810933587A CN108996359A CN 108996359 A CN108996359 A CN 108996359A CN 201810933587 A CN201810933587 A CN 201810933587A CN 108996359 A CN108996359 A CN 108996359A
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- CN
- China
- Prior art keywords
- cylinder body
- intercommunicating pore
- ring
- wall
- restrictor ring
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/28—Buffer-stops for cars, cages, or skips
- B66B5/282—Structure thereof
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention discloses a kind of oil buffers, it is related to elevator safety component technology field, including cylinder body, piston, piston rod, restrictor ring, throttling cone bar, restrictor ring is located at centre, throttling cone bar is installed in the cylinder body below piston, the internal diameter of restrictor ring is greater than the outer diameter of throttling cone bar and the two is coaxially disposed, piston rod bottom is equipped with the first intercommunicating pore, top land center is equipped with the second intercommunicating pore being located above restrictor ring, piston base center is equipped with the third connecting hole being located at below restrictor ring, and first intercommunicating pore, second intercommunicating pore, restrictor ring is sequentially communicated with third connecting hole.Invention increases the gaps between restrictor ring and throttling cone bar, and the intercommunicating pore different in restrictor ring aperture setting up and down, increase oil inlet rate and oil inlet quantity solve the problems, such as that oil buffer fills hydraulic oil overlong time so that oiling speed be made to significantly improve.
Description
Technical field
The present invention relates to elevator safety component technology fields, more particularly to a kind of oil buffer.
Background technique
Elevator is a kind of using motor as the vertical conveyor of power, be equipped with box-like gondola, for tier building multiply people or
Carrying cargo.Also there is step, step plate is commonly called as escalator or moving sidewalk, serves mounted in continuous operation on crawler belt
Provide the fixed type lifting equipment of floor.Vertical lift elevator has a carriage, operate at least two column it is vertical or inclination
Between rigid guideway of the angle less than 15 °, car size and structure type are convenient for passenger's discrepancy or handling goods.Though traditionally its
How is driving method, using elevator as the general name of vertical transportation means of transport in building.By speed can divide slower elevators (1 meter/
Second or less), express lift (1-2 meter per second) and express elevator (more than 2 meter per seconds).19th century, mid-term started hydraulic elevator occur,
So far it is still applied on low-rise building.1852, the E.G. Otis in the U.S. developed the safety cage of rope hoisting.
The eighties, driving device have further improvement, such as motor is driven by worm-drive and winds reel, using balance weight.19
The end of the century uses frictional wheel drive, greatly increases the hoisting depth of elevator.
Gap is small since throttling is bored between bar and restrictor ring for existing oil buffer product, fills the time of hydraulic oil very
It is long.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of oil buffer, including cylinder body, piston, piston rod, section
Ring, throttling cone bar are flowed, restrictor ring is located at centre, and throttling cone bar is installed in the cylinder body below piston, the internal diameter of restrictor ring
Outer diameter and the two greater than throttling cone bar are coaxially disposed, and piston rod bottom is equipped with the first intercommunicating pore, and top land center is equipped with position
The second intercommunicating pore above restrictor ring, piston base center is equipped with the third connecting hole being located at below restrictor ring, and first connects
Through-hole, the second intercommunicating pore, restrictor ring and third connecting hole are sequentially communicated.
Technical effect: invention increases the gaps between restrictor ring and throttling cone bar, and in restrictor ring hole setting up and down
The different intercommunicating pore of diameter, increases oil inlet rate and oil inlet quantity solves oil buffer and add so that oiling speed be made to significantly improve
The problem of fluid injection pressure oil overlong time.
The technical solution that the present invention further limits is:
Small lower big structure is presented in a kind of preceding oil buffer, the first intercommunicating pore and third connecting hole, and the second intercommunicating pore is in
Up big and down small structure, and the first intercommunicating pore aperture is maximum, the upper aperture in third connecting hole, the lower aperture of the second intercommunicating pore and throttling
The aperture of ring is identical.
The top of a kind of preceding oil buffer, throttling cone bar has conical section, and conical section presents small lower big structure,
Its bottom is isometrical with lower portion and diameter is respectively less than the annular aperture that throttles.
A kind of preceding oil buffer, further include buffer board, end cap, sealing plug, upper spring seat, lower spring cup and
Compressed spring,
End cap is wrapped in the top of piston rod, and upper spring seat is installed on above end cap, and end cap and upper spring seat are by being located at cylinder body
First screw in outside is fixedly connected, and buffer board is installed on above upper spring seat and sealing plug, and sealing plug is plugged in bullet
Spring abutment and end cap center；Lower spring cup is installed on outer wall of cylinder block, and the both ends of compressed spring are individually fixed in upper spring seat and lower bullet
On spring abutment.
A kind of preceding oil buffer, buffer board center are equipped with through-hole, and the aperture of through-hole is greater than the outer of sealing plug
Diameter, sealing plug pass through through-hole and are plugged in upper spring seat and end cap center.
A kind of preceding oil buffer, is equipped with the first O-shaped sealing between end cap and the contact site of piston rod side wall
Circle is equipped with the second O-ring seal between end cap and the contact site of sealing plug side wall.
A kind of preceding oil buffer, further includes guide sleeve, hole retaining ring, felt, shaft retaining ring,
Guide sleeve is arranged on piston rod and its side wall is fitted closely with inboard wall of cylinder block, and hole retaining ring is installed at the top of guide sleeve and it
Side wall is fitted closely with inboard wall of cylinder block, piston rod outer wall, and shaft retaining ring is sheathed on piston rod and is close to the setting of guide sleeve bottom, hair
Felt is wrapped in piston rod outer wall and fits closely with guide sleeve inner wall.
A kind of preceding oil buffer, is equipped with the 3rd O fitted closely between guide sleeve inner wall and piston rod side wall
Type sealing ring is equipped with the 4th O-ring seal fitted closely, third O-ring seal position between guide sleeve outer wall and inboard wall of cylinder block
Below felt, third O-ring seal and the 4th O-ring seal are located at sustained height.
A kind of preceding oil buffer further includes that switch re-packs, switchs connecting plate, switch block,
Switch re-packs top with inclined first bending part of upward spring base, and bottom end has curved to lower spring cup inclined second
Folding part, the first bending part are fixed with upper spring seat edge, also have one section of straight platform below the second bending part, the second bending part, straight
Switch contact of the platform close to switch block；Switch connecting plate is fixed by screw nut assembly and upper spring seat, and switch block is logical
The screw assembly plate that is connected with switch is crossed to fix.
A kind of preceding oil buffer, further includes bottom plate, oil filler point,
Oil filler point is set on cylinder body, and blocking on oil filler point has gasket and oiling screw；Bottom plate is welded and fixed with cylinder base, bottom
Plate center is equipped with boss, and boss is filled in cylinder body and its edge is fitted closely with inboard wall of cylinder block；Positioned at the intracorporal piston rod of cylinder
Side is equipped with several disengaging oilholes, and disengaging oilhole is connected to restrictor ring, and is passed in and out oilhole and be respectively positioned on different height.
The beneficial effects of the present invention are:
(1) present invention realizes the all-sealed structure of oil buffer, without any oil consumption when standby and work, to working environment
Green non-pollution, hydraulic oil is communicated with outside air when solving existing oil buffer standby mode, makes oil buffer
Hydraulic oil is easy evaporation and rotten, and when every task, the moment of beginning has the problem of a small amount of hydraulic oil sprays；
(2) the switch place of re-packing increases by one section of straight platform in the present invention, and control switch height and switch is facilitated to re-pack and switch contact
Mistake proofing is played the role of in gap, and the switch place of re-packing for solving existing structure oil buffer only has one section of inclined-plane, touches switch
The problem of point adjusts bad control with the gap adjustment on inclined-plane, switch height；
(3) oil buffer that the present invention designs increases boss structure, prevents cylinder diameter from becoming smaller, solves bottom plate and cylinder body
After welding, due to welding deformation, cylinder diameter is made to become smaller, there are problems that not resetting after work；
(4) compressed spring is capable of providing sufficiently large reset force in the present invention, is made in oil buffer with totally-enclosed sealing plug
Portion's hydraulic oil is not communicated with the external world, is lost after realizing oil buffer work without any hydraulic oil；
(5) the second intercommunicating pore, third connecting hole are in up big and down small and up-small and down-big structure respectively in the present invention, throttling cone bar top
Conical section is arranged in portion, enables hydraulic oil more quickly and more easily to enter restrictor ring and enters back into piston rod；
(6) buffer board center is equipped with through-hole in the present invention, and the aperture of through-hole is greater than the outer diameter of sealing plug, without unloading it
He can remove sealing plug by component；
(7) present invention reduces the free height of oil buffer using overall construction design, declines elevator pit height, section
About production cost while, also save elevator pit building cost.
Detailed description of the invention
Fig. 1 is the overall schematic of oil buffer；
Fig. 2 is the top schematic diagram of oil buffer；
Fig. 3 is the middle part schematic diagram of oil buffer；
Wherein: 1, bottom plate；101, boss；2, cylinder body；3, throttling cone bar；4, piston；401 restrictor rings；5, piston ring；6, piston
Bar；7, gasket；8, oiling screw；9, third O-ring seals；10, the 4th O-ring seals；11, guide sleeve；12, hole retaining ring；
13, compressed spring；14, the first O-ring seals；15, the first screw；16, buffer board；17, end cap；18, sealing plug；19,
Two O-ring seals；20, upper spring seat；21, switch re-packs；2101 straight platforms；22, felt；23 shaft retaining rings；24, screw-nut group
Part；25, lower spring cup；26, connecting plate is switched；27, switch block；28, screw assembly.
Specific embodiment
A kind of high leakproofness oil buffer provided in this embodiment, structure as shown in Figure 1-3, include cylinder body 2, piston 4,
Piston rod 6, the side that piston 4 is contacted with cylinder body 2 are equipped with annular groove, are embedded with piston ring 5 in annular groove, 5 ring of piston exists
Sealing state is fitted closely and is in when static and dynamic with 2 inner wall of cylinder body, piston 4 and piston rod 6 pass through the fixed company of spot welding
It connects.
Piston 4 is equipped with inclined-plane close to bottom margin, and inclined-plane and 2 inner wall of cylinder body form pre-lubrication space, and piston ring 5 is located at oblique
Center between 4 highest point of face highest point and piston.
It further include buffer board 16, end cap 17, sealing plug 18, upper spring seat 20, lower spring cup 25 and compressed spring 13.End
Lid 17 is wrapped in the top of piston rod 6, and upper spring seat 20 is installed on 17 top of end cap, and end cap 17 is with upper spring seat 20 by being located at
One 14 screw in 2 outside of cylinder body is fixedly connected, and buffer board 16 is installed on 18 top of upper spring seat 20 and sealing plug, seals spiral shell
Plug 18 is plugged in 17 center of upper spring seat 20 and end cap；Lower spring cup 25 is installed on 2 outer wall of cylinder body, the both ends point of compressed spring 13
It is not fixed on upper spring seat 20 and lower spring cup 25.
16 center of buffer board is equipped with through-hole, and the aperture of through-hole is greater than the outer diameter of sealing plug 18, and sealing plug 18 passes through logical
Hole is plugged in 17 center of upper spring seat 20 and end cap.The first 14O type is equipped between the contact site of 6 side wall of end cap 17 and piston rod
Sealing ring is equipped with the 2nd 19O type sealing ring between the contact site of 18 side wall of end cap 17 and sealing plug.
It further include guide sleeve 11, hole retaining ring 12, felt 22, shaft retaining ring 23.Guide sleeve 11 is arranged on piston rod 6 and its side
Wall is fitted closely with 2 inner wall of cylinder body, and hole retaining ring 12 is installed on outside 11 top of guide sleeve and its side wall and 2 inner wall of cylinder body, piston rod 6
Wall fits closely, and shaft retaining ring 23 is sheathed on piston rod 6 and is close to the setting of 11 bottom of guide sleeve, and felt 22 is wrapped in piston rod 6
Outer wall is simultaneously fitted closely with 11 inner wall of guide sleeve.The third fitted closely is equipped between 6 side wall of 11 inner wall of guide sleeve and piston rod
9O type sealing ring is equipped with the 4th 10O type sealing ring fitted closely, the 3rd 9O type between 2 inner wall of 11 outer wall of guide sleeve and cylinder body
Sealing ring is located at 22 lower section of felt, and the 3rd 9O type sealing ring and the 4th 10O type sealing ring are located at sustained height.
It further include switching re-pack 21, switch connecting plate 26, switch block 27.Switch re-packs 21 tops with upward spring base
20 inclined one 14 bending parts, bottom end have to inclined 2nd 19 bending part of lower spring cup 25, the one 14 bending part with it is upper
20 edge of spring base is fixed, and also has one section of straight platform 2101 below the 2nd 19 bending part, the 2nd 19 bending part, straight platform 2101 are close
The switch contact of switch block 27；It is fixed by screw nut assembly 24 and upper spring seat 20 to switch connecting plate 26, switch block
27 is fixed by the plate 26 that is connected with switch of screw assembly 28.
It further include bottom plate 1, oil filler point, restrictor ring 401 and throttling cone bar 3.Oil filler point is set on cylinder body 2, is sealed on oil filler point
It is stifled to have gasket 7 and oiling screw 8；Bottom plate 1 is welded and fixed with 2 bottom of cylinder body, and 1 center of bottom plate is equipped with boss 101, boss 101
It is filled in cylinder body 2 and its edge is fitted closely with 2 inner wall of cylinder body；Restrictor ring 401 is located at 4 center of piston, and throttling cone bar 3 is located at
In the cylinder body 2 of the lower section of piston 4 and its bottom is fixed on bottom plate 1, the internal diameter of restrictor ring 401 be greater than the outer diameter of throttling cone bar 3 and
The two coaxial arrangement, 6 side of piston rod in cylinder body 2 are equipped with several disengaging oilholes, and disengaging oilhole and restrictor ring 401 connect
It is logical, and pass in and out oilhole and be respectively positioned on different height.6 bottom of piston rod is equipped with the one 14 intercommunicating pore, and 4 center of top of piston, which is equipped with, to be located at
2nd 19 intercommunicating pore of 401 top of restrictor ring, 4 bottom center of piston are equipped with the 3rd 9 intercommunicating pore for being located at 401 lower section of restrictor ring,
And the one 14 intercommunicating pore, the 2nd 19 intercommunicating pore, restrictor ring 401 are sequentially communicated with the 3rd 9 intercommunicating pore, the one 14 intercommunicating pore and third
9 intercommunicating pores present small lower big structure, small structure under the 2nd 19 intercommunicating pore is presented greatly, and the one 14 intercommunicating pore aperture is maximum, and the 3rd 9
The aperture in the upper aperture of intercommunicating pore, the lower aperture of the 2nd 19 intercommunicating pore and restrictor ring 401 is identical.The top of throttling cone bar 3 has
Conical section, conical section present small lower big structure, and bottom is isometrical with lower portion and diameter is respectively less than 401 aperture of restrictor ring.
Working principle: when lift car or counterweight hit the buffer board 16 at the top of oil buffer, piston rod 6 is transported downwards
Dynamic, the hydraulic oil in cylinder body 2 overflows into piston rod by the annular gap between the restrictor ring 401 in piston 4 and throttling cone bar 3
With 2 upper space of cylinder body in 6, the effect of impact of buffering lift car or counterweight is played, to protect lift car and its inside
The safety of personnel or cargo.While piston rod 6 moves down, the drive of end cap 17 for being fixed on 6 top of piston rod is fixed thereon
Upper spring seat 20 move down, 21 also moved down so that the switch for being fixed on 20 side of upper spring seat be made to re-pack, switch opened, makes to drag
Draw machine power-off.After lift car or counterweight leave oil buffer, compressed spring 13 resets piston rod 6 completely, and switch is multiple
Position connects power supply circuit, oil buffer is made to be in normal operating condition.
In addition, the The hydraulic oil of oil buffer controls bound by the oil filler point on cylinder body 2, while with being equipped with
The oiling screw 8 of gasket 7 realizes the sealing of hydraulic oil.Since 17 upper end of end cap is equipped with the sealing plug of all-sealed structure
18, there is the 3rd 9O type sealing ring on the inner wall of guide sleeve 11, there is the 4th 10O type sealing ring on outer wall, so piston rod 6 is whole
There is no hydraulic oil to overflow outside buffer in a up and down motion course of work, therefore the oil buffer that the present invention designs does not need to mend
Filling liquid pressure oil, without any oil consumption, to working environment green non-pollution.
The present invention realizes the all-sealed structure of oil buffer, without any oil consumption when standby and work, to building ring
Border green non-pollution, hydraulic oil is communicated with outside air when solving existing oil buffer standby mode, makes oil buffer
Hydraulic oil be easy evaporation and rotten, when every task, the moment of beginning has the problem of a small amount of hydraulic oil sprays.Utilize entirety
Structure designs the free height for reducing oil buffer, declines elevator pit height, while saving production cost, also saves
About elevator pit building cost.
In addition to the implementation, the present invention can also have other embodiments.It is all to use equivalent substitution or equivalent transformation shape
At technical solution, fall within the scope of protection required by the present invention.
Claims (10)
1. a kind of oil buffer, including cylinder body (2), piston (4), piston rod (6), restrictor ring (401), throttling cone bar (3), institute
It states restrictor ring (401) and is located at the piston (4) center, throttling cone bar (3) is installed on the cylinder below the piston (4)
In body (2), the internal diameter of the restrictor ring (401) is greater than the outer diameter of throttling cone bar (3) and the two is coaxially disposed, and feature exists
In: piston rod (6) bottom is equipped with first (14) intercommunicating pore, and piston (4) center of top, which is equipped with, is located at the restrictor ring
(401) second (19) intercommunicating pore above, piston (4) bottom center are equipped with the be located at below the restrictor ring (401)
Three (9) intercommunicating pores, and described first (14) intercommunicating pore, described second (19) intercommunicating pore, the restrictor ring (401) and the third
(9) intercommunicating pore is sequentially communicated.
2. a kind of oil buffer according to claim 1, it is characterised in that: described first (14) intercommunicating pore and described the
Three (9) intercommunicating pores present small lower big structure, small structure under described second (19) intercommunicating pore is presented greatly, and described first (14) are connected to
Hole aperture is maximum, the upper aperture of third (9) intercommunicating pore, the lower aperture of described second (19) intercommunicating pore and the restrictor ring
(401) aperture is identical.
3. a kind of oil buffer according to claim 2, it is characterised in that: the top of throttling cone bar (3) has
Conical section, the conical section present small lower big structure, and bottom is isometrical with lower portion and diameter is respectively less than the restrictor ring
(401) aperture.
4. a kind of oil buffer according to claim 1, it is characterised in that: further include buffer board (16), end cap (17),
Sealing plug (18), upper spring seat (20), lower spring cup (25) and compressed spring (13),
The end cap (17) is wrapped in the top of the piston rod (6), and the upper spring seat (20) is installed on the end cap (17)
Top, the end cap (17) are fixed with the upper spring seat (20) by being located at first (14) screw on the outside of the cylinder body (2)
Connection, the buffer board (16) are installed on above the upper spring seat (20) and the sealing plug (18), the sealing plug
(18) it is plugged in the upper spring seat (20) and the end cap (17) center；The lower spring cup (25) is installed on the cylinder body
(2) outer wall, the both ends of the compressed spring (13) are individually fixed on the upper spring seat (20) and the lower spring cup (25).
5. a kind of oil buffer according to claim 4, it is characterised in that: buffer board (16) center is equipped with logical
Hole, the aperture of the through-hole are greater than the outer diameter of the sealing plug (18), and the sealing plug (18) blocks across the through-hole
In the upper spring seat (20) and the end cap (17) center.
6. a kind of oil buffer according to claim 4, it is characterised in that: the end cap (17) and the piston rod
(6) first (14) O-ring seal, the end cap (17) and the sealing plug (18) side wall are equipped between the contact site of side wall
Contact site between be equipped with second (19) O-ring seal.
7. a kind of oil buffer according to claim 4, it is characterised in that: further include guide sleeve (11), hole retaining ring
(12), felt (22), shaft retaining ring (23),
The guide sleeve (11) is arranged on the piston rod (6) and its side wall is fitted closely with the cylinder body (2) inner wall, described
Hole retaining ring (12) is installed at the top of the guide sleeve (11) and its side wall and the cylinder body (2) inner wall, the piston rod (6) outer wall
It fits closely, the shaft retaining ring (23) is sheathed on the piston rod (6) and is close to the setting of the guide sleeve (11) bottom, described
Felt (22) is wrapped in the piston rod (6) outer wall and fits closely with the guide sleeve (11) inner wall.
8. a kind of oil buffer according to claim 7, it is characterised in that: guide sleeve (11) inner wall and the work
It is equipped with third (9) O-ring seal for fitting closely between stopper rod (6) side wall, guide sleeve (11) outer wall and the cylinder body (2)
The 4th (10) O-ring seal fitted closely is equipped between inner wall, third (9) O-ring seal is located at the felt (22)
Lower section, third (9) O-ring seal and described 4th (10) O-ring seal are located at sustained height.
9. a kind of oil buffer according to claim 4, it is characterised in that: further include that switch re-packs (21), switchs company
Fishplate bar (26), switch block (27),
The switch (21) top that re-packs has to inclined first (14) bending part of the upper spring seat (20), bottom end have to
Described inclined second (19) bending part of lower spring cup (25), described first (14) bending part and the upper spring seat (20) edge
It is fixed, also there is one section of straight platform (2101), described second (19) bending part, the straight platform below described second (19) bending part
(2101) close to the switch contact of the switch block (27)；The switch connecting plate (26) by screw nut assembly (24) with
The upper spring seat (20) is fixed, and the switch block (27) is solid by screw assembly (28) and the switch connecting plate (26)
It is fixed.
10. a kind of oil buffer according to claim 4, it is characterised in that: it further include bottom plate (1), oil filler point,
The oil filler point is set on the cylinder body (2), and blocking on the oil filler point has gasket (7) and oiling screw (8)；It is described
Bottom plate (1) is welded and fixed with the cylinder body (2) bottom, and bottom plate (1) center is equipped with boss (101), and the boss (101) is filled out
It fills in the cylinder body (2) and its edge is fitted closely with the cylinder body (2) inner wall；The work in the cylinder body (2)
Stopper rod (6) side is equipped with several disengaging oilholes, and the disengaging oilhole is connected to the restrictor ring (401), and the disengaging oilhole
It is respectively positioned on different height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810933587.XA CN108996359A (en) | 2018-08-16 | 2018-08-16 | A kind of oil buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810933587.XA CN108996359A (en) | 2018-08-16 | 2018-08-16 | A kind of oil buffer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108996359A true CN108996359A (en) | 2018-12-14 |
Family
ID=64592325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810933587.XA Pending CN108996359A (en) | 2018-08-16 | 2018-08-16 | A kind of oil buffer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108996359A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111481845A (en) * | 2020-04-10 | 2020-08-04 | 江苏理工学院 | Adjustable escape device and control method thereof |
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| CN201217591Y (en) * | 2008-05-08 | 2009-04-08 | 河北东方富达机械有限公司 | Oil hydraulic buffer |
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| CN202687688U (en) * | 2012-07-17 | 2013-01-23 | 河北东方富达机械有限公司 | Oil buffer |
| CN202936056U (en) * | 2012-11-01 | 2013-05-15 | 河北东方富达机械有限公司 | Oil pressure buffer |
| CN205328407U (en) * | 2015-12-31 | 2016-06-22 | 镇江朝阳机电科技有限公司 | A oil buffer for lift control usefulness |
| CN206770482U (en) * | 2017-03-14 | 2017-12-19 | 镇江朝阳机电科技有限公司 | Oil buffer |
| CN206770487U (en) * | 2017-03-14 | 2017-12-19 | 镇江朝阳机电科技有限公司 | Oil buffer |
-
2018
- 2018-08-16 CN CN201810933587.XA patent/CN108996359A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201217591Y (en) * | 2008-05-08 | 2009-04-08 | 河北东方富达机械有限公司 | Oil hydraulic buffer |
| CN202164000U (en) * | 2011-07-04 | 2012-03-14 | 河北东方富达机械有限公司 | Oil buffer |
| CN202687688U (en) * | 2012-07-17 | 2013-01-23 | 河北东方富达机械有限公司 | Oil buffer |
| CN202936056U (en) * | 2012-11-01 | 2013-05-15 | 河北东方富达机械有限公司 | Oil pressure buffer |
| CN205328407U (en) * | 2015-12-31 | 2016-06-22 | 镇江朝阳机电科技有限公司 | A oil buffer for lift control usefulness |
| CN206770482U (en) * | 2017-03-14 | 2017-12-19 | 镇江朝阳机电科技有限公司 | Oil buffer |
| CN206770487U (en) * | 2017-03-14 | 2017-12-19 | 镇江朝阳机电科技有限公司 | Oil buffer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111481845A (en) * | 2020-04-10 | 2020-08-04 | 江苏理工学院 | Adjustable escape device and control method thereof |
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Application publication date: 20181214 |
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| RJ01 | Rejection of invention patent application after publication |