CN115352978B - Guide rail capable of reducing friction force - Google Patents
Guide rail capable of reducing friction force Download PDFInfo
- Publication number
- CN115352978B CN115352978B CN202210882460.6A CN202210882460A CN115352978B CN 115352978 B CN115352978 B CN 115352978B CN 202210882460 A CN202210882460 A CN 202210882460A CN 115352978 B CN115352978 B CN 115352978B
- Authority
- CN
- China
- Prior art keywords
- guide rail
- fixedly connected
- arc
- limiting
- rail body
- 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.)
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- 238000007790 scraping Methods 0.000 claims description 34
- 230000007246 mechanism Effects 0.000 claims description 9
- 239000013013 elastic material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 25
- 230000008569 process Effects 0.000 abstract description 20
- 230000000694 effects Effects 0.000 abstract description 10
- 238000005096 rolling process Methods 0.000 abstract description 6
- 239000003921 oil Substances 0.000 description 21
- 239000010687 lubricating oil Substances 0.000 description 19
- 239000012535 impurity Substances 0.000 description 18
- 238000001125 extrusion Methods 0.000 description 7
- 239000000428 dust Substances 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/12—Checking, lubricating, or cleaning means for ropes, cables or guides
- B66B7/1253—Lubricating means
- B66B7/1269—Lubricating means specially adapted for guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/02—Guideways; Guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/12—Checking, lubricating, or cleaning means for ropes, cables or guides
- B66B7/1276—Cleaning means
- B66B7/1292—Cleaning means specially adapted for guides
Landscapes
- Bearings For Parts Moving Linearly (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The invention relates to the technical field of elevator accessories and discloses a guide rail for reducing friction force, which comprises a guide rail body and a through hole, wherein a top plate is fixedly connected to the left side of the guide rail body, a positioning rail is fixedly connected to the surface of the top end of the guide rail body, arc-shaped grooves are formed in the left side and the right side of the positioning rail, a channel is formed in the positioning rail, a limit groove is formed in the side wall of the arc-shaped groove, and a limit seat is connected to the inside of the limit groove in a sliding mode. According to the elevator, the elevator car moves downwards along the inside of the guide rail body to extrude the universal ball to drive the second spring to compress, so that the universal ball is inwards sunk towards the inside of the positioning rail, and the contact pressure between the elevator car sliding rail and the elevator guide rail body is reduced, so that the effect of reducing friction force is achieved, meanwhile, the universal ball arranged at the inner side of the arc-shaped groove is extruded by the guide rail body in the contact process with the elevator car sliding rail to rotate, sliding friction is converted into rolling friction, friction force is obviously reduced, and the elevator lifting efficiency is further improved.
Description
Technical Field
The invention relates to the technical field of elevator accessories, in particular to a guide rail for reducing friction force.
Background
The elevator guide rail is in use due to the limiting function of the elevator car, friction contact occurs between the guide rail and the elevator car slide rail in the elevator car lifting process, a large friction force is generated, and normal lifting of the elevator car is affected, so that the friction performance of the elevator guide rail is an important parameter of the elevator guide rail.
The existing elevator guide rail has the following technical defects when in use: firstly, the friction force is large in the lifting process of the lift car, so that the lifting is blocked, and meanwhile, the guide rail is severely damaged by friction; secondly, coating lubricating oil on the guide rail leads to adhesion of dust and lubricating oil in the elevator shaft due to long-term work, so that the lubricating effect is poor, and further friction force is increased to be improved.
Disclosure of Invention
Aiming at the defects of the prior elevator guide rail in the use process, the invention provides the guide rail for reducing the friction force, which has the advantages of obviously reducing the friction force, automatically filling oil and removing impurities, and solves the technical problems in the prior art.
The invention provides the following technical scheme: the guide rail for reducing friction force comprises a guide rail body and a through hole, wherein the left side of the guide rail body is fixedly connected with a top plate, the surface of the top end of the guide rail body is fixedly connected with a positioning rail, arc-shaped grooves are formed in the left side and the right side of the positioning rail, a channel is formed in the positioning rail, and a limit groove is formed in the side wall of the arc-shaped groove;
the inside sliding connection of spacing groove has a spacing seat, the inside roll connection of spacing seat has a universal ball, the dorsal part fixedly connected with support column of spacing seat, the other end fixedly connected with limiting plate of support column, the other end fixedly connected with second spring of limiting plate, the other end fixedly connected with of second spring is on the inner wall of passageway, the dorsal part of spacing seat is equipped with scraping mechanism.
Preferably, the scraping mechanism comprises an arc sleeve fixedly connected to the back side of the limiting seat, the inner wall of the arc sleeve is tightly connected with the universal ball, the front side wall and the rear side wall of the arc sleeve are fixedly connected with electromagnets, and the upper end and the lower end of each electromagnet are fixedly connected with first springs;
the scraping mechanism further comprises scraping plates fixedly connected to the other ends of the first springs, and the two scraping plates are both connected to the inner wall of the arc-shaped sleeve in a sliding mode.
Preferably, limit grooves are formed in the front side wall and the rear side wall of the arc-shaped sleeve, and a limit block is fixedly connected to one side, away from the limit seat, of the limit groove.
Preferably, two side walls of the scraping plates are fixedly connected with conductive sheets on one side close to the electromagnet, and two conductive blocks are fixedly connected to the left side wall and the right side wall of the electromagnet.
Preferably, the back sides of the two scraping plates are fixedly connected with limiting balls, and the diameter value of each limiting ball is larger than the width value of each limiting groove.
Preferably, the left side fixedly connected with oil pump of roof, the right-hand member of oil pump just runs through the roof and extends to the inside fixedly connected with oil spout of guide rail body.
Preferably, the limit grooves are arranged at equal intervals along the inner part of the arc-shaped groove.
Preferably, the scraper is provided as a magnetic plate.
Preferably, the limiting blocks are made of elastic materials and are arranged at equal intervals along the inner wall of the limiting groove.
The invention has the following beneficial effects:
1. according to the elevator, the elevator car moves downwards along the inside of the guide rail body to further extrude the universal ball to drive the second spring to compress, so that the universal ball is inwards sunk towards the inside of the positioning rail, the contact pressure between the car sliding rail and the elevator guide rail body is reduced, the effect of reducing friction force is achieved, and the lifting efficiency of the elevator is improved.
2. According to the elevator car sliding rail, the universal ball arranged on the inner side of the arc-shaped groove is extruded and rotated in the process of contacting the guide rail body with the elevator car sliding rail, so that sliding friction is converted into rolling friction, friction force is obviously reduced, and elevator lifting efficiency is further improved.
3. According to the elevator car sliding rail, the preliminary scraping of the lubricating oil is realized through the extrusion contact of the gap between the universal ball and the limiting seat in the rotation process of the universal ball, so that impurities in the elevator shaft, which are generated by the aggregation of dust attached to the lubricating oil, are effectively removed, the contact impurities between the guide rail body and the elevator car sliding rail are reduced, and the friction force is further reduced.
4. According to the invention, the magnetic scrapers on two sides are driven to move towards the electromagnet by electrifying the electromagnet, so that the first spring is extruded to remove the mixture of lubricating oil and dust attached to the inner side of the arc-shaped sleeve close to the universal ball after the primary scraping is finished, impurities are reduced from accumulating on the inner wall of the arc-shaped sleeve, and the impurity removing effect is improved
5. According to the invention, the conducting strip is electrified in contact with the conducting block arranged on the side wall of the electromagnet in the scraper moving process, so that the oil pump is started to timely supplement lubricating oil, the lubricating oil is sprayed on the inner side of the arc-shaped groove through the oil nozzle and then slides downwards through the universal ball, and the lubricating oil is automatically filled, so that the oil quantity after the lubricating oil is scraped is kept sufficient.
6. According to the invention, through the matching arrangement of the limit groove formed in the arc-shaped sleeve and the limit ball on the back of the scraper blade, collision with the arc-shaped sleeve in the scraping process of the scraper blade is realized, so that vibration is generated, impurities attached to the inner side of the arc-shaped sleeve are timely vibrated and knocked down, finally fall through a channel, and the problem of poor efficiency of scraping the impurities due to the attachment of the impurities in the guide rail body is solved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an enlarged schematic view of the structure A in FIG. 1 according to the present invention;
fig. 3 is a schematic diagram of the back side structure of the limiting seat 10 according to the present invention;
FIG. 4 is a schematic diagram of a limiting groove structure according to the present invention;
fig. 5 is an enlarged partial view of the structure of the conductive sheet and the conductive block according to the present invention.
In the figure: 1. a guide rail body; 2. a top plate; 3. an oil pump; 4. an oil nozzle; 5. an arc-shaped groove; 6. a positioning rail; 7. a through hole; 8. a channel; 9. a limit groove; 10. a limit seat; 11. a universal ball; 12. an arc sleeve; 121. an electromagnet; 122. a first spring; 123. a scraper; 124. a limit groove; 125. a limiting block; 126. a conductive sheet; 127. a conductive block; 128. a limit ball; 13. a support column; 14. a limiting plate; 15. and a second spring.
Description of the embodiments
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-5, a guide rail for reducing friction force comprises a guide rail body 1 and a through hole 7, wherein a top plate 2 is fixedly connected to the left side of the guide rail body 1, a positioning rail 6 is fixedly connected to the surface of the top end of the guide rail body 1, arc-shaped grooves 5 are formed in the left side and the right side of the positioning rail 6, a channel 8 is formed in the positioning rail 6, and a limit groove 9 is formed in the side wall of the arc-shaped groove 5;
the inside sliding connection of spacing groove 9 has spacing seat 10, the inside roll connection of spacing seat 10 has universal ball 11, the back side fixedly connected with support column 13 of spacing seat 10, the other end fixedly connected with limiting plate 14 of support column 13, the other end fixedly connected with second spring 15 of limiting plate 14, the other end fixedly connected with of second spring 15 is on the inner wall of passageway 8, the extrusion force of car slide rail motion and guide rail body 1 contact in-process takes place the extrusion to universal ball 11 and then makes universal ball 11 subsidence drive spacing seat 10 and support column 13 motion, second spring 15 compresses, thereby make the contact pressure of car slide rail and guide rail body 1 arc wall 5 obtain the reduction, reduce the pressure of contact area front surface, and then reduce the effect of sliding friction; meanwhile, the setting of universal ball 11 makes the car slide rail drive the universal ball 11 and take place to roll along the inside emergence of spacing seat 10 when following guide rail body 1 motion, and then become sliding friction to rolling friction, further reduced frictional force, move down along guide rail body 1's inside through the elevator car and then extrude universal ball 11 and drive the compression of second spring 15, make universal ball 11 inwards sink towards the locating rail, and then make car slide rail and elevator guide rail body 1's contact pressure reduce, the universal ball 11 of setting up in arc groove 5 receives guide rail body 1 and car slide rail contact in-process's extrusion to take place to rotate, realize turning sliding friction into rolling friction, the frictional force is showing reduced, further improve elevator lifting efficiency spacing seat 10's backside is equipped with scraping mechanism.
The scraping mechanism comprises an arc-shaped sleeve 12 fixedly connected to the back side of the limiting seat 10, the inner wall of the arc-shaped sleeve 12 is tightly connected with the universal ball 11, the front side wall and the rear side wall of the arc-shaped sleeve 12 are fixedly connected with electromagnets 121, and the upper end and the lower end of each electromagnet 121 are fixedly connected with a first spring 122;
the scraping mechanism further comprises a scraping plate 123 fixedly connected to the other end of the first spring 122, and the two scraping plates 123 are both slidably connected to the inner wall of the arc-shaped sleeve 12. In the process that the universal ball 11 rolls along the inside of the limit seat 10, the side wall of the universal ball 11 is in extrusion contact with the inner wall of the arc-shaped sleeve 12 at the back of the limit seat 10, so that dust accumulated impurities attached to lubricating oil coated on the universal ball 11 can be scraped off, the scraped accumulated matters are accumulated on the inner wall of the arc-shaped sleeve 12, the electromagnet 121 is started, the two magnetic scraping plates 123 are enabled to move towards the electromagnet 121 under the adsorption action of magnetic force, the first spring 122 is enabled to be compressed, and the effect of cleaning the accumulated impurities accumulated on the inner wall of the arc-shaped sleeve 12 is achieved. The magnetic scrapers 123 on the two sides are driven to move towards the electromagnet 121 by the electrifying of the electromagnet 121, and then the first spring 122 is extruded to remove the mixture of the lubricating oil and the dust attached to the arc-shaped sleeve 12 and close to the inner side of the universal ball 11 after the primary scraping is completed, so that sundries are reduced to be accumulated on the inner wall of the arc-shaped sleeve 12, and the impurity removing effect is improved.
Limiting grooves 124 are formed in the front side wall and the rear side wall of the arc-shaped sleeve 12, and limiting blocks 125 are fixedly connected to one side, away from the limiting seat 10, of the limiting grooves 124.
The side walls of the two scraping plates 123 and one side close to the electromagnet 121 are fixedly connected with conducting strips 126, and the left side wall and the right side wall of the electromagnet 121 are fixedly connected with two conducting blocks 127.
The back sides of the two scrapers 123 are fixedly connected with limit balls 128, and the diameter value of the limit balls 128 is larger than the width value of the limit groove 124. In the motion process of the scraper 123, the limiting ball 128 fixed on the back of the scraper 123 slides along the inside of the limiting groove 124, and due to the arrangement of the limiting block 125 on the side wall of the limiting groove 124, the scraper 123 continuously shakes in the sliding process and collides with the limiting block 125, so that sundries assisting the side wall of the scraper 123 timely vibrate and drop, and finally the impurities drop through the channel 8 inside the positioning rail.
The left side fixedly connected with oil pump 3 of roof 2, the right-hand member of oil pump 3 just runs through roof 2 and extends to the inside fixedly connected with oil spout 4 of guide rail body 1. When the conducting strips 126 on the side walls of the scraping plates 123 on the two sides are in contact with the conducting blocks 127 on the side walls of the electromagnets 121, the oil pump 13 works, and the oil nozzle is started, so that oil is filled in time, the loss of lubricating oil in the process of scraping impurities is reduced, the lubricating oil is supplemented in time, and the lubricating effect is guaranteed. The conductive piece 126 is electrified with the conductive block 127 arranged on the side wall of the electromagnet 121 in the movement process of the scraper 123, so that the oil pump 3 is started to supplement lubricating oil in time, the lubricating oil is sprayed on the inner side of the arc-shaped groove 5 through the oil nozzle 4 to slide downwards through the universal ball 11, and the lubricating oil is automatically filled, so that the oil quantity is kept sufficient after the lubricating oil is scraped.
The limit grooves 9 are arranged at equal intervals along the inner part of the arc-shaped groove 5. The plurality of universal balls 11 equally divide the rolling pressure so that the friction force is uniformly reduced.
The scraper 123 is provided as a magnetic plate. So that the magnetic attraction drives the scraper 123 to move.
The limiting blocks 125 are made of elastic materials and are arranged at equal intervals along the inner wall of the limiting groove 124. So that the limiting ball 128 and the limiting block 125 vibrate in contact during the contact process, and the uniform knocking is realized.
The application method (working principle) of the invention is as follows:
when the guide rail works, the extrusion force generated in the process of the movement of the car slide rail and the contact of the guide rail body 1 extrudes the universal ball 11, so that the universal ball 11 is sunk to drive the limit seat 10 and the support column 13 to move, and the second spring 15 is compressed, so that the contact pressure of the car slide rail and the arc-shaped groove 5 of the guide rail body 1 is reduced, the pressure of the front surface of a contact area is reduced, and the sliding friction effect is further reduced; meanwhile, the arrangement of the universal ball 11 enables the car sliding rail to drive the universal ball 11 to roll along the inside of the limit seat 10 when moving along the guide rail body 1, and then sliding friction is changed into rolling friction, so that friction force is further reduced.
In the process that the universal ball 11 rolls along the inside of the limit seat 10, the side wall of the universal ball 11 is in extrusion contact with the inner wall of the arc-shaped sleeve 12 at the back of the limit seat 10, dust accumulated impurities attached to lubricating oil coated on the universal ball 11 are scraped, the scraped accumulated matters are accumulated on the inner wall of the arc-shaped sleeve 12, the electromagnet 121 is started, the two magnetic scraping plates 123 move towards the electromagnet 121 under the adsorption effect of magnetic force, the first spring 122 is compressed, the effect of cleaning accumulated impurities on the inner wall of the arc-shaped sleeve 12 is achieved, when the conductive plates 126 on the side walls of the scraping plates 123 at the two sides are in contact with the conductive blocks 127 on the side walls of the electromagnet 121, the oil pump 13 works, the oil nozzle is started, oil is timely filled, loss of lubricating oil in the process of scraping the impurities is reduced, timely lubrication effect is guaranteed, meanwhile, the limiting balls 128 fixed on the back of the scraping plates 123 slide along the inner part of the limiting grooves 124 due to the arrangement of the limiting blocks 125, the scraping plates 123 continuously shake in the sliding process, the impurities are impacted to the limiting blocks 125, and finally the impurities on the side walls of the scraping plates 123 drop down through the vibration rails 8.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a reduce guide rail of frictional force, includes guide rail body (1), through-hole (7), its characterized in that: the novel guide rail comprises a guide rail body (1), wherein a top plate (2) is fixedly connected to the left side of the guide rail body (1), a positioning rail (6) is fixedly connected to the top surface of the guide rail body (1), arc-shaped grooves (5) are formed in the left side and the right side of the positioning rail (6), a channel (8) is formed in the positioning rail (6), and a limit groove (9) is formed in the side wall of the arc-shaped groove (5);
the inside sliding connection of spacing groove (9) has spacing seat (10), the inside roll connection of spacing seat (10) has universal ball (11), the back side fixedly connected with support column (13) of spacing seat (10), the other end fixedly connected with limiting plate (14) of support column (13), the other end fixedly connected with second spring (15) of limiting plate (14), the other end fixedly connected with of second spring (15) is on the inner wall of passageway (8), the back side of spacing seat (10) is equipped with scraping mechanism;
the scraping mechanism comprises an arc-shaped sleeve (12) fixedly connected to the back side of the limiting seat (10), the inner wall of the arc-shaped sleeve (12) is tightly connected with the universal ball (11), the front side wall and the rear side wall of the arc-shaped sleeve (12) are fixedly connected with electromagnets (121), and the upper end and the lower end of each electromagnet (121) are fixedly connected with a first spring (122);
the scraping mechanism further comprises scraping plates (123) fixedly connected to the other ends of the first springs (122), and the two scraping plates (123) are both connected to the inner wall of the arc-shaped sleeve (12) in a sliding mode;
limiting grooves (124) are formed in the front side wall and the rear side wall of the arc-shaped sleeve (12), and limiting blocks (125) are fixedly connected to one side, away from the limiting seat (10), of the limiting grooves (124);
the side walls of the two scraping plates (123) and one side close to the electromagnet (121) are fixedly connected with conducting strips (126), and the left side wall and the right side wall of the electromagnet (121) are fixedly connected with two conducting blocks (127);
and the back sides of the two scraping plates (123) are fixedly connected with limiting balls (128), and the diameter value of each limiting ball (128) is larger than the width value of each limiting groove (124).
2. A friction reducing guide rail according to claim 1, wherein: the left side fixedly connected with oil pump (3) of roof (2), the right-hand member of oil pump (3) just runs through roof (2) and extends to inside fixedly connected with oil spout (4) of guide rail body (1).
3. A friction reducing guide rail according to claim 1, wherein: the limiting grooves (9) are arranged at equal intervals along the inner part of the arc-shaped groove (5).
4. A friction reducing guide rail according to claim 1, wherein: the scraper (123) is provided as a magnetic plate.
5. A friction reducing guide rail according to claim 1, wherein: the limiting blocks (125) are made of elastic materials and are arranged at equal intervals along the inner wall of the limiting groove (124).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210882460.6A CN115352978B (en) | 2022-07-26 | 2022-07-26 | Guide rail capable of reducing friction force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210882460.6A CN115352978B (en) | 2022-07-26 | 2022-07-26 | Guide rail capable of reducing friction force |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115352978A CN115352978A (en) | 2022-11-18 |
| CN115352978B true CN115352978B (en) | 2023-12-12 |
Family
ID=84031962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210882460.6A Active CN115352978B (en) | 2022-07-26 | 2022-07-26 | Guide rail capable of reducing friction force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115352978B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3525025A1 (en) * | 1984-07-19 | 1986-01-23 | Mannesmann AG, 4000 Düsseldorf | Guide for a travelling apparatus of a building |
| CN207536959U (en) * | 2017-12-11 | 2018-06-26 | 浙江沃尔森电梯有限公司 | A kind of cage guide |
| CN111908298A (en) * | 2020-07-07 | 2020-11-10 | 刘宝军 | Self-sensing repairing type ball guide shoe for elevator |
-
2022
- 2022-07-26 CN CN202210882460.6A patent/CN115352978B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3525025A1 (en) * | 1984-07-19 | 1986-01-23 | Mannesmann AG, 4000 Düsseldorf | Guide for a travelling apparatus of a building |
| CN207536959U (en) * | 2017-12-11 | 2018-06-26 | 浙江沃尔森电梯有限公司 | A kind of cage guide |
| CN111908298A (en) * | 2020-07-07 | 2020-11-10 | 刘宝军 | Self-sensing repairing type ball guide shoe for elevator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115352978A (en) | 2022-11-18 |
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| PB01 | Publication | ||
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20231106 Address after: 710075 Room 209, 2nd Floor, Fengxi Construction Headquarters, Qinchuangyuan, Fengxi New City, Xixian New District, Xi'an City, Shaanxi Province Applicant after: Jiuyi Precision Ceramics (Xi'an) Co.,Ltd. Address before: No. 6, Gaoxin 7th Road, Ankang Hi tech Industrial Development Zone, Shaanxi Province, 725029 Applicant before: Zhang Xiaowei |
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 710075 Room 209, 2nd Floor, Fengxi Construction Headquarters, Qinchuangyuan, Fengxi New City, Xixian New District, Xi'an City, Shaanxi Province Applicant after: Shaanxi Jiuyi Air Floatation Guide Rail Co.,Ltd. Address before: 710075 Room 209, 2nd Floor, Fengxi Construction Headquarters, Qinchuangyuan, Fengxi New City, Xixian New District, Xi'an City, Shaanxi Province Applicant before: Jiuyi Precision Ceramics (Xi'an) Co.,Ltd. |
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