CN110375028A - Combined motorcycle shock absorber and shock absorption method thereof - Google Patents
Combined motorcycle shock absorber and shock absorption method thereof Download PDFInfo
- Publication number
- CN110375028A CN110375028A CN201910745237.5A CN201910745237A CN110375028A CN 110375028 A CN110375028 A CN 110375028A CN 201910745237 A CN201910745237 A CN 201910745237A CN 110375028 A CN110375028 A CN 110375028A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- piston rod
- combined motorcycle
- compressed gas
- connection sheet
- 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
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000035939 shock Effects 0.000 title abstract description 9
- 239000006096 absorbing agent Substances 0.000 title abstract description 7
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 8
- 239000000314 lubricant Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 12
- 239000007788 liquid Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 24
- 238000013016 damping Methods 0.000 description 8
- 230000003139 buffering effect Effects 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009514 concussion Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
- Axle Suspensions And Sidecars For Cycles (AREA)
Abstract
The invention discloses a combined motorcycle shock absorber and a shock absorption method thereof, wherein the combined motorcycle shock absorber comprises a first sleeve and a second sleeve which are coaxially arranged, the first sleeve and the second sleeve are respectively provided with a closed end, the two closed ends are respectively and fixedly connected with a connecting piece, a piston rod is arranged in the first sleeve in a sliding mode, one end of the piston rod extends into the second sleeve, compressed gas is filled between the piston rod and the closed end of the first sleeve, a push plate is arranged in the second sleeve in a sliding mode, a second buffer spring is arranged between the piston rod and the push plate, and pressure-bearing liquid is filled between the push plate and the closed end of the second sleeve. According to the combined motorcycle shock absorber and the shock absorption method thereof, a three-level combined type buffer structure is adopted, the shock absorption effect is better, and excessive rebound cannot be generated.
Description
Technical field
The present invention relates to motorcycle vibration absorber field, specifically a kind of combined motorcycle damper and its damping side
Method.
Background technique
Damper is mainly used to inhibit concussion when rebounding after spring shock-absorbing and impact from road surface.By not level road
When face, although shock-absorbing spring can filter the vibration on road surface, spring itself also has a reciprocating motion, and damper be exactly for
Inhibit this spring jump.
Motorcycle vibration absorber currently on the market mainly uses spring as buffer structure, only has the effect of damping, makes
After this damper is assemblied on motorcycle, it may appear that the spring force effect of damper is too strong, makes vehicle body in damper
Effect it is lower will vertical bounce, and generate and excessively spring back, and shock absorber effect is too weak, although excessive rebound will not be generated,
It can make damper that the damping effect of normal damper be not achieved.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of combined motorcycle damper and its shock-dampening method, damping
Effect is more preferable, will not generate excessive rebound.
In order to achieve the above object, the invention provides the following technical scheme:
A kind of combined motorcycle damper, first sleeve and second sleeve including coaxial arrangement, the first sleeve and institute
It states second sleeve and is each provided with a closed end, two closed ends are respectively fixedly connected with a connector, the first set
Sliding is provided with piston rod in cylinder, and one end of the piston rod is extend into the second sleeve, the piston rod with it is described
Compressed gas is filled between the closed end of first sleeve, sliding is provided with pushing plate, the work in the second sleeve
Be provided with the second buffer spring between stopper rod and the pushing plate, the closed end of the pushing plate and the second sleeve it
Between be filled with pressurized fluid.
Preferably, the one end of the piston rod being located in the first sleeve is provided with reducing diameter part, and the reducing diameter part is solid
Surely it is connected with movable plate, the compressed gas is between the movable plate and the closed end of the first sleeve.
Preferably, lubricant medium is filled between the reducing diameter part and the first sleeve.
Preferably, the inner cavity of the second sleeve is cylindrical, and the internal diameter of the inner cavity is greater than the straight of the piston rod
The one end of diameter, the piston rod being located in the second sleeve is connected with circular limit plate, the limit plate it is straight
Diameter is equal with the internal diameter of the inner cavity.
Preferably, the upper cover of piston rod is equipped with the first buffer spring.
Preferably, it is connected between the second sleeve and the first sleeve by being flexible coupling, the inside that is flexible coupling
Filled with for protecting the protection medium of first buffer spring.
Preferably, the connector includes connection sheet, and the connection sheet passes through connecting column and the first sleeve or institute
It states second sleeve to be fixedly connected, offers connecting hole in the connection sheet.
Preferably, it is arranged on the edge of the connection sheet there are two the recessed portion that is oppositely arranged, is arranged in the connection sheet
There is fixing collar, the fixing collar bypasses two recessed portions.
Preferably, the fixing collar includes two plates being oppositely arranged, and passes through two between two plates relatively
The arc panel of setting is connected, and there are gaps between the arc panel and the connection sheet.
A kind of shock-dampening method of combined motorcycle damper, includes the following steps:
S1, the first sleeve or the second sleeve bear pressure, keep the first sleeve and the second sleeve opposite
Movement；
S2, when pressure be less than first threshold when, the compressed gas absorption pressure is to offset the first sleeve and described second
The trend that sleeve moves toward one another；
S3, when pressure is less than second threshold, the compressed gas and the second buffer spring absorption pressure are described to offset
The trend that first sleeve and the second sleeve move toward one another；
S4, when pressure is less than third threshold value, the compressed gas, second buffer spring and the pressurized fluid absorb pressure
Power is to offset the trend that the first sleeve and the second sleeve move toward one another.
The present invention is using compressed gas, the three-stage combined buffer structure of the second buffer spring and pressurized fluid, wherein pressing
For contracting gas for buffering slight pressure, the second buffer spring combines the pressure for buffering moderate, supporting roll with compressed gas
Body, the second buffer spring and compressed gas combine the pressure for buffering severe, the mode phase with traditional single buffer structure
Than, damping effect is more preferable, will not because pressure caused by vibration is smaller and can not damping, there will not be excessive rebound, Ke Yiyou
Effect improves the comfort level driven.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the overall structure main view of damper.
Fig. 2 is cross-sectional view of the damper when removing connector.
Fig. 3 is the set-up mode schematic diagram of connector and fixing collar.
Appended drawing reference: 1- connection sheet, 2- connecting hole, 3- recessed portion, 4- fixing collar, 5- connecting column, 6- first sleeve, 7- are soft
Connection, 8- protection medium, the first buffer spring of 9-, 10- piston rod, 11- second sleeve, 12- compressed gas, 13- movable plate,
14- reducing diameter part, 15- lubricant medium, 16- limit plate, the second buffer spring of 17-, the inner cavity 18-, 19- pushing plate, 20- supporting roll
Body, 21- plate, 22- arc panel, the gap 23-.
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.
The overall structure main view that Fig. 1 to 3, Fig. 1 is damper is please referred to, Fig. 2 is damper when removing connector
Cross-sectional view, Fig. 3 are the set-up mode schematic diagrames of connector and fixing collar.
A kind of combined motorcycle damper, first sleeve 6 and second sleeve 11 including coaxial arrangement, first sleeve 6
It is each provided with a closed end with second sleeve 11, two closed ends are respectively fixedly connected with a connector, slide in first sleeve 6
It is dynamic to be provided with piston rod 10, and one end of piston rod 10 is extend into second sleeve 11, the closing of piston rod 10 and first sleeve 6
Compressed gas 12 is filled between end, sliding is provided with pushing plate 19 in second sleeve 11, between piston rod 10 and pushing plate 19
It is provided with the second buffer spring 17, pressurized fluid 20 is filled between pushing plate 19 and the closed end of second sleeve 11.
The present invention uses the three-stage combined buffer structure of compressed gas 12, the second buffer spring 17 and pressurized fluid 20,
Wherein for buffering slight pressure, the second buffer spring 17 is combined with compressed gas 12 for buffering moderate compressed gas 12
Pressure, pressurized fluid 20, the second buffer spring 17 and compressed gas 12 combine the pressure for buffering severe, and traditional single
The mode of buffer structure is compared, and damping effect is more preferable, will not because pressure caused by vibration is smaller and can not damping, there will not be
Excessively rebound, can effectively improve the comfort level of driving.
Further, the setting position of compressed gas 12 are as follows: the one end of piston rod 10 being located in first sleeve 6 is provided with
Reducing diameter part 14, reducing diameter part 14 are fixedly connected with movable plate 13, and compressed gas 12 is located at the closed end of movable plate 13 and first sleeve 6
Between.
Further, lubricant medium 15 is filled between reducing diameter part 14 and first sleeve 6.When bearing slight pressure,
First sleeve 6 and second sleeve 10 move toward one another, and compressed gas 12, which is pressurized, in 6 motion process of first sleeve shrinks, promotion activity
Plate 13 moves, and the greasy property between movable plate 13 and first sleeve 6 can be improved in lubricant medium 15, to avoid the mill of movable plate 13
Damage, and sealing can be played the role of, avoid compressed gas 12 from revealing.
Further, the inner cavity 18 of second sleeve 11 is cylindrical, and the internal diameter of inner cavity 18 is greater than the diameter of piston rod 10,
The one end of piston rod 10 being located in second sleeve 11 is connected with circular limit plate 16, the diameter of limit plate 16 and inner cavity
18 internal diameter is equal.It is connected to inner cavity 18 and internal diameter and piston rod correspondingly, the open end of second sleeve 11 offers one
The equal through-hole of 10 diameter, so that limit plate 16 be made to play the function of preventing piston rod 10 from deviating from from second sleeve 11.
Further, the first buffer spring 9 is arranged on piston rod 10, the first buffer spring 9 is cooperateed with compressed gas 12
For buffering slight pressure.
Further, 7 it is connected between second sleeve 11 and first sleeve 6 by being flexible coupling, 7 inside that are flexible coupling are filled with
For protecting the protection medium 8 of the first buffer spring 9.Be flexible coupling 7 with the cooperation of protection medium 8 by the first buffer spring 9 with it is extraneous
Separation effectively extends the service life of the first buffer spring 9 to protect to the first buffer spring 9.In the present embodiment
In, being flexible coupling 7 can be using bellows, and protection medium 8 can protect gas using nitrogen etc., can also use lubricating oil, lubrication
Oil can be with the greasy property between lift piston rod 10 and first sleeve 6 and second sleeve 11.
Further, connector includes connection sheet 1, and connection sheet 1 passes through connecting column 5 and first sleeve 6 or second sleeve
11 are fixedly connected, and connecting hole 2 is offered in connection sheet 1.Connection sheet 1 is connected by modes such as hooks with the component of motorcycle itself
It connects.
In order to reinforce the structural strength of connection sheet 1, to extend the service life of connection sheet 1, it is arranged on the edge of connection sheet 1
There are two the recessed portion 3 being oppositely arranged, fixing collar 4 is arranged in connection sheet 1, fixing collar 4 bypasses two recessed portions 3.
Further, fixing collar 4 includes two plates 21 being oppositely arranged, and is set relatively between two plates 21 by two
The arc panel 22 set is connected, and there are gaps 23 between arc panel 22 and connection sheet 1.When 1 stress deformation of connection sheet, put down
Plate 21 correspondingly generates deformation, gap 23 can with presence so that the size of fixing collar 4 is greater than connection sheet 1, to be sent out in plate 21
Guarantee that fixing collar 4 will not be torn, and promote consolidation effect when raw deformation.
Based on above-mentioned damper, the present invention also provides a kind of shock-dampening methods of combined motorcycle damper, including step
S1 to S4.
S1, first sleeve 6 or second sleeve 11 bear pressure, move toward one another first sleeve 6 and second sleeve 11.
S2, when pressure be less than first threshold when, 12 absorption pressure of compressed gas is to offset first sleeve 6 and second sleeve 11
The trend moved toward one another.
S3, when pressure be less than second threshold when, compressed gas 12 and 17 absorption pressure of the second buffer spring are to offset first
The trend that sleeve 6 and second sleeve 11 move toward one another.
S4, when pressure be less than third threshold value when, 20 absorption pressure of compressed gas 12, the second buffer spring 17 and pressurized fluid
To offset the trend that first sleeve 6 and second sleeve 11 move toward one another.
It should be noted that first threshold, second threshold and third threshold value are gradually increased.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of combined motorcycle damper, it is characterised in that: first sleeve (6) and second sleeve including coaxial arrangement
(11), the first sleeve (6) and the second sleeve (11) are each provided with a closed end, two each fixations in closed end
It is connected with a connector, sliding is provided with piston rod (10) in the first sleeve (6), and one end of the piston rod (10)
It extend into the second sleeve (11), is filled between the piston rod (10) and the closed end of the first sleeve (6)
Have compressed gas (12), sliding is provided with pushing plate (19) in the second sleeve (11), and the piston rod (10) pushes away with described
It is provided between movable plate (19) the second buffer spring (17), the closing of the pushing plate (19) and the second sleeve (11)
Pressurized fluid (20) are filled between end.
2. a kind of combined motorcycle damper as described in claim 1, it is characterised in that: piston rod (10) are located at
One end in the first sleeve (6) is provided with reducing diameter part (14), and the reducing diameter part (14) is fixedly connected with movable plate (13), institute
Compressed gas (12) are stated between the movable plate (13) and the closed end of the first sleeve (6).
3. a kind of combined motorcycle damper as claimed in claim 2, it is characterised in that: the reducing diameter part (14) with it is described
Lubricant medium (15) are filled between first sleeve (6).
4. a kind of combined motorcycle damper as described in claim 1, it is characterised in that: the second sleeve (11) it is interior
Chamber (18) is cylindrical, and the internal diameter of the inner cavity (18) is greater than the diameter of the piston rod (10), the piston rod (10)
One end in the second sleeve (11) is connected with circular limit plate (16), the diameter of the limit plate (16) with
The internal diameter of the inner cavity (18) is equal.
5. a kind of combined motorcycle damper as described in claim 1, it is characterised in that: be arranged on the piston rod (10)
There are the first buffer spring (9).
6. a kind of combined motorcycle damper as claimed in claim 5, it is characterised in that: the second sleeve (11) and institute
State between first sleeve (6) by be flexible coupling (7) be connected, it is described to be flexible coupling inside (7) filled with for protecting described first
The protection medium (8) of buffer spring (9).
7. a kind of combined motorcycle damper as described in claim 1, it is characterised in that: the connector includes connection sheet
(1), the connection sheet (1) is fixedly connected by connecting column (5) with the first sleeve (6) or the second sleeve (11),
Connecting hole (2) are offered on the connection sheet (1).
8. a kind of combined motorcycle damper as claimed in claim 7, it is characterised in that: the edge of the connection sheet (1)
Upper setting is arranged with fixing collar (4), the fixing collar (4) there are two the recessed portion (3) that is oppositely arranged on the connection sheet (1)
Around two recessed portions (3).
9. a kind of combined motorcycle damper as claimed in claim 8, it is characterised in that: the fixing collar (4) includes two
A plate (21) being oppositely arranged is connected between two plates (21) by two arc panels (22) being oppositely arranged,
There are gap (23) between the arc panel (22) and the connection sheet (1).
10. a kind of shock-dampening method of combined motorcycle damper as described in claim 1, which is characterized in that including as follows
Step:
S1, the first sleeve (6) or the second sleeve (11) bear pressure, make the first sleeve (6) and described the
Two sleeves (11) move toward one another；
S2, when pressure be less than first threshold when, compressed gas (12) absorption pressure is to offset the first sleeve (6) and institute
State the trend that second sleeve (11) moves toward one another；
S3, when pressure is less than second threshold, the compressed gas (12) and the second buffer spring (17) absorption pressure with
Offset the trend that the first sleeve (6) and the second sleeve (11) move toward one another；
S4, when pressure be less than third threshold value when, the compressed gas (12), second buffer spring (17) and the supporting roll
Body (20) absorption pressure is to offset the trend that the first sleeve (6) and the second sleeve (11) move toward one another.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910745237.5A CN110375028B (en) | 2019-08-13 | 2019-08-13 | Combined motorcycle shock absorber and shock absorption method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910745237.5A CN110375028B (en) | 2019-08-13 | 2019-08-13 | Combined motorcycle shock absorber and shock absorption method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110375028A true CN110375028A (en) | 2019-10-25 |
| CN110375028B CN110375028B (en) | 2024-02-09 |
Family
ID=68259126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910745237.5A Active CN110375028B (en) | 2019-08-13 | 2019-08-13 | Combined motorcycle shock absorber and shock absorption method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110375028B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114167946A (en) * | 2021-11-12 | 2022-03-11 | 深圳市德航智能技术有限公司 | Three-proofing reinforced tablet computer |
| CN114313587A (en) * | 2021-12-31 | 2022-04-12 | 江苏宇辉住宅工业有限公司 | Superimposed sheet transportation protection architecture |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH271716A (en) * | 1947-03-27 | 1950-11-15 | Procedes Et App Laugaudin Soc | Shock absorber. |
| CN2931926Y (en) * | 2006-01-20 | 2007-08-08 | 陆凯 | Variable damping oil/gas separated shock absorber |
| CN101101031A (en) * | 2006-07-06 | 2008-01-09 | 浙江正裕工业有限公司 | Single cylinder shock absorber |
| CN202402547U (en) * | 2011-12-22 | 2012-08-29 | 中国直升机设计研究所 | Stretched buffer |
| CN103527697A (en) * | 2013-11-01 | 2014-01-22 | 武汉天捷重型装备股份有限公司 | Hydro-pneumatic spring suspension cylinder |
| CN103542033A (en) * | 2013-11-04 | 2014-01-29 | 四川川南减震器集团有限公司 | Single drum shock absorber |
| CN208311350U (en) * | 2018-04-26 | 2019-01-01 | 常州市达文电动车辆配件厂 | A kind of damper damping mechanism and hydraulic-air pressure combination of dampings damper using it |
| CN210623457U (en) * | 2019-08-13 | 2020-05-26 | 泉州市博汉机械股份有限公司 | Combined motorcycle shock absorber |
-
2019
- 2019-08-13 CN CN201910745237.5A patent/CN110375028B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH271716A (en) * | 1947-03-27 | 1950-11-15 | Procedes Et App Laugaudin Soc | Shock absorber. |
| CN2931926Y (en) * | 2006-01-20 | 2007-08-08 | 陆凯 | Variable damping oil/gas separated shock absorber |
| CN101101031A (en) * | 2006-07-06 | 2008-01-09 | 浙江正裕工业有限公司 | Single cylinder shock absorber |
| CN202402547U (en) * | 2011-12-22 | 2012-08-29 | 中国直升机设计研究所 | Stretched buffer |
| CN103527697A (en) * | 2013-11-01 | 2014-01-22 | 武汉天捷重型装备股份有限公司 | Hydro-pneumatic spring suspension cylinder |
| CN103542033A (en) * | 2013-11-04 | 2014-01-29 | 四川川南减震器集团有限公司 | Single drum shock absorber |
| CN208311350U (en) * | 2018-04-26 | 2019-01-01 | 常州市达文电动车辆配件厂 | A kind of damper damping mechanism and hydraulic-air pressure combination of dampings damper using it |
| CN210623457U (en) * | 2019-08-13 | 2020-05-26 | 泉州市博汉机械股份有限公司 | Combined motorcycle shock absorber |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114167946A (en) * | 2021-11-12 | 2022-03-11 | 深圳市德航智能技术有限公司 | Three-proofing reinforced tablet computer |
| CN114167946B (en) * | 2021-11-12 | 2022-08-05 | 深圳市德航智能技术有限公司 | Three-proofing reinforced tablet computer |
| CN114313587A (en) * | 2021-12-31 | 2022-04-12 | 江苏宇辉住宅工业有限公司 | Superimposed sheet transportation protection architecture |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110375028B (en) | 2024-02-09 |
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| CB02 | Change of applicant information |
Address after: 362200 equipment manufacturing base of Jinjiang Economic Development Zone, Quanzhou City, Fujian Province (anheyuan) Applicant after: Quanzhou Bohan Machinery Co.,Ltd. Address before: 362200 equipment manufacturing base of Jinjiang Economic Development Zone, Quanzhou City, Fujian Province (anheyuan) Applicant before: BOHAN (QUANZHOU) MACHINERY CO.,LTD. |
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