CN107416614A - Damper - Google Patents
Damper Download PDFInfo
- Publication number
- CN107416614A CN107416614A CN201710328607.6A CN201710328607A CN107416614A CN 107416614 A CN107416614 A CN 107416614A CN 201710328607 A CN201710328607 A CN 201710328607A CN 107416614 A CN107416614 A CN 107416614A
- Authority
- CN
- China
- Prior art keywords
- friction
- housing
- rotary shaft
- damper
- bar
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
- B65H75/44—Constructional details
- B65H75/4436—Arrangements for yieldably braking the reel or the material for moderating speed of winding or unwinding
- B65H75/4442—Arrangements for yieldably braking the reel or the material for moderating speed of winding or unwinding acting on the reel
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B1/00—Devices for lowering persons from buildings or the like
- A62B1/06—Devices for lowering persons from buildings or the like by making use of rope-lowering devices
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B1/00—Devices for lowering persons from buildings or the like
- A62B1/06—Devices for lowering persons from buildings or the like by making use of rope-lowering devices
- A62B1/18—Other single parts for rope lowering-devices, e.g. take-up rollers for ropes, devices for shooting ropes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2403/00—Power transmission; Driving means
- B65H2403/60—Damping means, shock absorbers
- B65H2403/61—Rotation damper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/35—Ropes, lines
Abstract
The invention discloses a kind of damper, belongs to buffering reduction of speed technical field.The damper includes being used to wind the rotary shaft of rope and at least one buffer unit, buffer unit includes frictional disk, friction protrusion, friction housing and friction element, frictional disk is fixedly mounted on the rotating shaft, friction protrusion is at least provided with one, friction protrusion is arranged on the outer peripheral face of frictional disk, friction housing is installed in rotation in rotary shaft, friction housing is co-axially located at the periphery of rotary shaft, there is cushion space between friction housing and frictional disk, friction element is at least provided with one, friction element includes connecting rod, friction-bar and elastic component, one end of connecting rod is installed in rotation on the inwall of friction housing, friction-bar is fixedly mounted on the other end of connecting rod, the both ends of elastic component are separately mounted in friction-bar and on the inwall of friction housing.The damper of the present invention does not have motor or hydraulic-driven, has the characteristics of simple in construction, in light weight, small volume, simple to operate.
Description
Technical field
The invention belongs to buffer reduction of speed technical field, more particularly to a kind of damper.
Background technology
Only under gravity, the motion that initial velocity is zero is called the movement of falling object to object, and object accelerates in gravity
In the presence of degree, can have very big speed and momentum in a short time, therefore, by the way that damper can be set to reduce object
Speed and momentum.
With flourishing for construction industry, the emergence of high-rise, high buildings and large mansions contour level is built in our daily
Become to be seen everywhere in life, also brought a series of problem, for example skyscraper is once when occurring the dangerous situations such as fire, due to
Dense smoke and raging fire people are difficult normally to be fled from from stair and elevator, and in the case where dense smoke poison gas and roaring flame surround, many people are buried
Fire 10,000 or so occurs daily for the sea of fire, according to statistics, the whole world, and dead people more than 2000 hinders 3000-4000 people, and annual fire causes
Direct property loss up to more than 10 hundred million yuan, the especially big malignant fire for especially causing tens people, hundreds of people dead constantly occurs, people
The life security of the people masses cannot ensure.Damper be solve problems a kind of means, the damper of this type
For damper of escaping.
Further, in the manufacturing field of building, it will usually the conveying of material is carried out, if under the material with freely falling body
Drop, terminal velocity and momentum when reaching ground can be very huge, therefore, need to set damper, to reduce speed, buffering punching
Amount.
During the present invention is realized, it is found by the applicant that prior art at least has the following disadvantages：
Damper of the prior art, typically it is made up of, is hung on high aerial hook, rope and buffer unit etc.
Bearing, people or material be connected by rope with hook, and buffer unit is arranged on people or material, and people or material delay with cord lock
It is slow to decline.But buffer unit of the prior art is mostly to have motor or hydraulic-driven, causes complicated, and weight is excessive, volume
It is huge, operate relatively cumbersome, there is an urgent need to a kind of portable, safe and descending lifeline simple to operate at present to solve above-mentioned ask
Topic.
The content of the invention
For it is complicated, bulking value is big, troublesome in poeration existing for above-mentioned damper of the prior art the problem of, this
Invention provides one kind damper.
The present invention is achieved through the following technical solutions above-mentioned purpose：
A kind of damper, the damper include rotary shaft and at least one buffer unit, and the rotary shaft is used to wind
Rope, the buffer unit include frictional disk, friction protrusion, friction housing and friction element, and the frictional disk is fixedly mounted on
In the rotary shaft, at least provided with one, the friction protrusion is arranged on the outer peripheral face of the frictional disk friction protrusion,
The friction housing is installed in rotation in the rotary shaft, and the friction housing is co-axially located at the outer of the rotary shaft
Enclose, there is cushion space between the friction housing and the frictional disk, the friction element is described to rub at least provided with one
Wiping unit includes connecting rod, friction-bar and elastic component, and one end of the connecting rod is installed in rotation on the friction housing
On inwall, the friction-bar is fixedly mounted on the other end of the connecting rod, and the both ends of the elastic component are separately mounted to described
In friction-bar and on the inwall of the friction housing.
Preferably, the friction protrusion is curved.
Further, the setting quantity of the friction protrusion is even number, and the friction protrusion is in the frictional disk
The equiangularly spaced setting of mandrel.
Further, the setting quantity of the friction element is odd number, and the friction element is around the friction housing
The equiangularly spaced setting of central shaft.
Further, rotatable roller is provided with the friction-bar, the roller rolls with the friction protrusion matches somebody with somebody
Close, when roller is in contact with friction protrusion, in rolling friction state, the service life of roller and friction protrusion can be increased,
And then increase the service life of damper.
Further, the first lead is provided with the friction-bar, first lead is inserted into the elasticity
In part, compression and reset that the first lead can be to elastic component are oriented to.
Further, the friction housing is provided with positioning hole, the positioning on the inwall for installing the elastic component
The second lead is provided with hole, the elastic component is inserted in the positioning hole and passed through by second lead, and second leads
To post can also be to elastic component compression and reset be oriented to.
Further, the sidepiece of the friction housing is provided with cover plate, is provided with the middle part of the cover plate for the rotation
The bearing that axle passes through；Fix bar corresponding with the friction element, the connecting rod of the friction element are provided with the cover plate
Corresponding to being rotatably mounted around in the fix bar.
Further, the buffer unit is provided with two, and two buffer units are separately positioned on the rotary shaft
Both ends.
Preferably, two baffle plates for being used to prevent rope deflection displacement are provided with the middle part of the rotary shaft.
The beneficial effects of the invention are as follows：
A kind of damper of the present invention, when in use, under the drive of rope, rotary shaft and rotating disc synchronous axial system, turn
Friction protrusion on Moving plate also rotates, and when friction protrusion rotates, friction protrusion can touch the friction-bar of friction element, rub
Wiping rod drives connecting rod to rotate, and compression elastic piece, during this, friction-bar can and friction protrusion produce frictional force, to reduce
Falling speed, and reduce momentum.The damper of the present invention does not have motor or hydraulic-driven, has simple in construction, in light weight, volume
The characteristics of small, simple to operate.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, make required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is the structural representation of the damper of the embodiment of the present invention；
Fig. 2 is the structural representation of the buffer unit in the damper of the embodiment of the present invention；
Fig. 3 is the structural representation of the friction component in the embodiment of the present invention；
Fig. 4 is the arrangement schematic diagram of roller in the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
The embodiment of the invention discloses a kind of damper.
Fig. 1 is the structural representation of the damper of the embodiment of the present invention, and Fig. 2 is slow in the damper of the embodiment of the present invention
The structural representation of flushing device.Referring to Fig. 1 and Fig. 2, the damper of the embodiment of the present invention, including rotary shaft 1 and at least one slow
Flushing device, wherein, rotary shaft 1 is used to wind rope, and buffer unit includes frictional disk 2, friction protrusion 3, friction housing 4 and friction
Unit 5, frictional disk 2 are fixedly mounted in rotary shaft 1, and for friction protrusion 3 at least provided with one, friction protrusion 3 is arranged on frictional disk 2
Outer peripheral face on, friction housing 4 is installed in rotation in rotary shaft 1, and friction housing 4 is co-axially located at the periphery of rotary shaft 1,
There is cushion space, for friction element 5 at least provided with one, friction element 5 includes connection between friction housing 4 and frictional disk 2
Bar 51, friction-bar 52 and elastic component 53, one end of connecting rod 51 are installed in rotation on the inwall of friction housing 4, friction-bar
52 are fixedly mounted on the other end of connecting rod 51, and the both ends of elastic component 53 are separately mounted in friction-bar 52 and friction housing 4
On inwall.
A kind of damper of the embodiment of the present invention, when in use, under the drive of rope, rotary shaft and rotating disc synchronously turn
Dynamic, the friction protrusion on rotating disc also rotates, and when friction protrusion rotates, friction protrusion can touch the friction of friction element
Rod, friction-bar drive connecting rod to rotate, and compression elastic piece, during this, friction-bar can and friction protrusion produce frictional force, with
Falling speed is reduced, and reduces momentum.The present invention damper there is no motor or hydraulic-driven, have it is simple in construction, in light weight,
Small volume, it is simple to operate the characteristics of.
With reference to Fig. 2, the frictional disk 2 of the embodiment of the present invention can be arranged in rotary shaft 1 by spline 6, so that frictional disk 2
It is fixedly connected with rotary shaft 1, the two synchronous axial system.
Certainly, the frictional disk 2 of the embodiment of the present invention can also be arranged to integral structure with rotary shaft 1, and the present invention is implemented
Example is not restricted to this.
With reference to Fig. 2, the friction protrusion 3 of the embodiment of the present invention so can be to the impact friction of friction-bar 52 with curved
Individual smooth transition, to prevent abnormal sound.
Further, with reference to Fig. 2, in the embodiment of the present invention, there is spacing between adjacent friction protrusion 3.
With reference to Fig. 2, the setting quantity of the friction protrusion 3 of the embodiment of the present invention can be even number, and friction protrusion 3 is around friction
The equiangularly spaced setting of central shaft of disk 2, so multiple frictional impact can be produced in a cycle that frictional disk 2 rotates,
Falling speed can more efficiently be reduced.
Further, the setting quantity of the friction element 5 of the embodiment of the present invention is odd number, and friction element 5 is around friction shell
The equiangularly spaced setting of central shaft of body 4, friction more times can be so produced in a cycle that frictional disk 2 rotates and is touched
Hit, can more efficiently reduce falling speed.
Because the setting quantity of the friction protrusion 3 of the embodiment of the present invention is even number, the setting quantity of friction element 5 is strange
Several, within the particular moment that frictional disk 2 rotates, caused frictional force is between each friction element 5 and friction protrusion 3
Different, it friction element 5 is produced the frictional force being maintained within a certain range to frictional disk 2, to reduce
The change of falling speed.
Preferably, the setting quantity of the friction protrusion 3 of the embodiment of the present invention is 4, and the setting quantity of friction element 5 is
3.
Fig. 3 is the structural representation of the friction component in the embodiment of the present invention, with reference to Fig. 3, in the embodiment of the present invention, and friction
Rotatable roller 7 can be provided with rod 52, the roller 7 rolls with friction protrusion 3 to be coordinated, and roller 7 connects with friction protrusion 3
When touching, in rolling friction state, the service life of roller 7 and friction protrusion 3 can be increased, and then increase the use of damper
Life-span.
Fig. 4 is the arrangement schematic diagram of roller in the embodiment of the present invention, with reference to Fig. 4, in the embodiment of the present invention, friction-bar 52
Axial both ends can be respectively arranged with connecting plate 15, and the connecting plate 15 at both ends is passed through by a rotating shaft 16, and roller 7 is i.e. rotationally
It is sleeved in the rotating shaft 16.
The elastic component 53 of the embodiment of the present invention can be the spring with some strength, when friction-bar 52 extrudes to it,
Elastic component 53 compresses, and after friction-bar 52 extrudes, elastic component 53 resets, and holds friction-bar 52.
It should be noted that the elastic component 53 of the embodiment of the present invention can be changed, this can is according to different situations
The different elastic component 53 of elastic deformation is changed, to adapt to the people or the article that vary in weight.
With reference to Fig. 3, the first lead 54 can be provided with the friction-bar 52 of the embodiment of the present invention, the first lead 54 is inserted
Enter into elastic component 52, the compression and reset that the first lead 54 can be to elastic component 53 are oriented to.
Further, with reference to Fig. 3, in the embodiment of the present invention, friction housing 4 is provided with the inwall of installation elastic component 53
Positioning hole 41, the second lead 55 is provided with positioning hole 41, and elastic component 53 is inserted in positioning hole 41 and by the second lead 55
Pass through, the compression and reset that the second lead 55 can also be to elastic component 53 are oriented to.
With reference to Fig. 1 and Fig. 2, in the embodiment of the present invention, two sidepieces of friction housing 4 can be respectively arranged with cover plate 8, this
Two cover plates 8 of sample and friction housing 4 can surround a closing space, and the remaining part of buffer unit can be installed within the envelope
Close in space.
In the embodiment of the present invention, the middle part of cover plate 8 can be provided with the bearing passed through for rotary shaft 1, when rotary shaft 1 is being restricted
When being rotated under the drive of rope, friction housing 4 can relatively rotate with rotary shaft 1.
In addition, with reference to Fig. 2, in the embodiment of the present invention, can be provided with cover plate 8 and 5 corresponding fix bar of friction element
9, the connecting rod 51 of friction element 5 is rotatably mounted around in corresponding fix bar 9, to realize that one end of connecting rod 51 is rotatable
Ground is arranged on the inwall of friction housing 4.
With reference to Fig. 1, the buffer unit of the embodiment of the present invention can be provided with two, and two buffer units, which are separately positioned on, to be turned
The both ends of moving axis 1, equilibrium is buffered when can so cause to fall and break, prevents skew.
In order to prevent buffer unit from scurrying out rotary shaft, with reference to Fig. 1, the embodiment of the present invention is in the both sides of buffer unit, i.e., two
The outside of individual cover plate 8 is provided with postive stop baffle 10, to avoid above-mentioned phenomenon.
With reference to Fig. 1, the middle part of the rotary shaft 1 of the embodiment of the present invention can be provided with two and be used to prevent rope deflection displacement
Baffle plate 11, rope is wrapped between two baffle plates 11, and this can just make rope in an intermediate position all the time, avoid using
Miscellaneous part is wound with journey, influences the normal use of damper.
Further, a shell 12 can also be included with reference to Fig. 1, the buffer unit of the embodiment of the present invention, shell 12 will be above-mentioned
In component is covered in, shell 12 need to be provided with an opening 13 passed through by rope.
The damper of the embodiment of the present invention, different occasions can be useful in, such as：
High-rise life saving：When the unpredictable things such as fire occur, the link 14 of cable end can be hung on room
Interior fixed position, personnel bear the damper, land from high building., can be in the shell of damper as the high-rise life saving used time
Brace is provided with 12, the pattern of similar knapsack is formed, there is the characteristics of portability.
Building site materials：In work progress, when material conveys, the damping can be installed on the apparatus of conveying material
Device, it can prevent from, because producing large impact, causing the accidents such as rope damage.
Embodiment provided above is the better embodiment of the present invention, is only used for the convenient explanation present invention, not to this hair
It is bright to make any formal limitation, any those of ordinary skill in the art, if putting forward skill not departing from the present invention
In the range of art feature, using the equivalent embodiment for locally changing or modifying made by disclosed technology contents, and
Without departing from the technical feature content of the present invention, in the range of still falling within the technology of the present invention feature.
Claims (10)
1. a kind of damper, it is characterised in that the damper includes rotary shaft and at least one buffer unit, the rotary shaft
For winding rope, the buffer unit includes frictional disk, friction protrusion, friction housing and friction element, and the frictional disk is consolidated
Dingan County is in the rotary shaft, and for the friction protrusion at least provided with one, the friction protrusion is arranged on the frictional disk
On outer peripheral face, the friction housing is installed in rotation in the rotary shaft, and the friction housing is co-axially located at described turn
The periphery of moving axis, there is cushion space, the friction element is at least provided with one between the friction housing and the frictional disk
Individual, the friction element includes connecting rod, friction-bar and elastic component, and one end of the connecting rod is installed in rotation on described rub
On the inwall for wiping housing, the friction-bar is fixedly mounted on the other end of the connecting rod, and the both ends of the elastic component are pacified respectively
In the friction-bar and on the inwall of the friction housing.
2. damper according to claim 1, it is characterised in that the friction protrusion is curved.
3. damper according to claim 2, it is characterised in that the setting quantity of the friction protrusion is even number, institute
State central shaft equiangularly spaced setting of the friction protrusion around the frictional disk.
4. damper according to claim 3, it is characterised in that the setting quantity of the friction element is odd number, institute
State central shaft equiangularly spaced setting of the friction element around the friction housing.
5. damper according to claim 4, it is characterised in that rotatable roller, institute are provided with the friction-bar
State roller and rolled with the friction protrusion and coordinated.
6. damper according to claim 5, it is characterised in that the first lead is provided with the friction-bar, it is described
First lead is inserted into the elastic component.
7. damper according to claim 6, it is characterised in that the friction housing is installing the inwall of the elastic component
On be provided with positioning hole, be provided with the second lead in the positioning hole, the elastic component is inserted in the positioning hole and by institute
The second lead is stated to pass through.
8. damper according to claim 5, it is characterised in that the sidepiece of the friction housing is provided with cover plate, described
The bearing passed through for the rotary shaft is provided with the middle part of cover plate；It is provided with the cover plate corresponding with the friction element solid
Fixed pole, the connecting rod of the friction element are rotatably mounted around in the corresponding fix bar.
9. according to the damper described in claim any one of 1-5, it is characterised in that the buffer unit is provided with two, and two
The individual buffer unit is separately positioned on the both ends of the rotary shaft.
10. damper according to claim 9, it is characterised in that two are provided with the middle part of the rotary shaft and is used to prevent
The only baffle plate of rope deflection displacement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710328607.6A CN107416614A (en) | 2017-05-04 | 2017-05-04 | Damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710328607.6A CN107416614A (en) | 2017-05-04 | 2017-05-04 | Damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107416614A true CN107416614A (en) | 2017-12-01 |
Family
ID=60425132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710328607.6A Pending CN107416614A (en) | 2017-05-04 | 2017-05-04 | Damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107416614A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114162A (en) * | 2018-10-15 | 2019-01-01 | 张文革 | One kind having balance falling objects rate damper |
| CN109455580A (en) * | 2018-12-27 | 2019-03-12 | 重庆玮硕恒基电脑配件有限公司 | A kind of flexible screen collector |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2142876A1 (en) * | 1971-08-27 | 1973-03-01 | Windmoeller & Hoelscher | Fabric roller - on sprung brake shoes to give constant fabric tension on unreeling |
| FR2761608A3 (en) * | 1997-03-27 | 1998-10-09 | Wen Tsai Tseng | Rescue equipment to lower person from height |
| US5913383A (en) * | 1998-01-20 | 1999-06-22 | Tseng; Wen-Tsai | Fire escape device for lowering people from a high rise |
| CN102671315A (en) * | 2012-06-05 | 2012-09-19 | 刘晓桐 | Slowly-dropping escape device |
| CN103925308A (en) * | 2014-04-25 | 2014-07-16 | 重庆隆旺机电有限责任公司 | Non-friction clutch |
| CN204745417U (en) * | 2015-06-19 | 2015-11-11 | 中建八局第一建设有限公司 | Take buffer's safety belt |
| CN105664385A (en) * | 2016-04-11 | 2016-06-15 | 张文革 | Portable backpack descent control device |
| CN106031812A (en) * | 2015-03-09 | 2016-10-19 | 曾文财 | A slow descent machine |
| CN206691957U (en) * | 2017-05-04 | 2017-12-01 | 张文革 | Damper |
-
2017
- 2017-05-04 CN CN201710328607.6A patent/CN107416614A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2142876A1 (en) * | 1971-08-27 | 1973-03-01 | Windmoeller & Hoelscher | Fabric roller - on sprung brake shoes to give constant fabric tension on unreeling |
| FR2761608A3 (en) * | 1997-03-27 | 1998-10-09 | Wen Tsai Tseng | Rescue equipment to lower person from height |
| US5913383A (en) * | 1998-01-20 | 1999-06-22 | Tseng; Wen-Tsai | Fire escape device for lowering people from a high rise |
| CN102671315A (en) * | 2012-06-05 | 2012-09-19 | 刘晓桐 | Slowly-dropping escape device |
| CN103925308A (en) * | 2014-04-25 | 2014-07-16 | 重庆隆旺机电有限责任公司 | Non-friction clutch |
| CN106031812A (en) * | 2015-03-09 | 2016-10-19 | 曾文财 | A slow descent machine |
| CN204745417U (en) * | 2015-06-19 | 2015-11-11 | 中建八局第一建设有限公司 | Take buffer's safety belt |
| CN105664385A (en) * | 2016-04-11 | 2016-06-15 | 张文革 | Portable backpack descent control device |
| CN206691957U (en) * | 2017-05-04 | 2017-12-01 | 张文革 | Damper |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114162A (en) * | 2018-10-15 | 2019-01-01 | 张文革 | One kind having balance falling objects rate damper |
| CN109114162B (en) * | 2018-10-15 | 2023-12-08 | 张文革 | Damper with function of balancing falling object speed |
| CN109455580A (en) * | 2018-12-27 | 2019-03-12 | 重庆玮硕恒基电脑配件有限公司 | A kind of flexible screen collector |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination |