CN114110089A - Chain for maintaining outdoor ladder conveniently at equal step distance - Google Patents
Chain for maintaining outdoor ladder conveniently at equal step distance Download PDFInfo
- Publication number
- CN114110089A CN114110089A CN202111454281.4A CN202111454281A CN114110089A CN 114110089 A CN114110089 A CN 114110089A CN 202111454281 A CN202111454281 A CN 202111454281A CN 114110089 A CN114110089 A CN 114110089A
- Authority
- CN
- China
- Prior art keywords
- lubricating
- pin shaft
- chain plate
- chain
- shaped
- 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
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Classifications
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- 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
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G13/00—Chains
- F16G13/02—Driving-chains
- F16G13/06—Driving-chains with links connected by parallel driving-pins with or without rollers so called open links
- F16G13/07—Driving-chains with links connected by parallel driving-pins with or without rollers so called open links the links being of identical shape, e.g. cranked
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B23/00—Component parts of escalators or moving walkways
- B66B23/02—Driving gear
- B66B23/024—Chains therefor
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- 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
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G15/00—Chain couplings, Shackles; Chain joints; Chain links; Chain bushes
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- 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
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G15/00—Chain couplings, Shackles; Chain joints; Chain links; Chain bushes
- F16G15/12—Chain links
-
- 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
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G15/00—Chain couplings, Shackles; Chain joints; Chain links; Chain bushes
- F16G15/12—Chain links
- F16G15/14—Chain links made of sheet metal, e.g. profiled
-
- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
-
- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/045—Lubricant storage reservoirs, e.g. reservoirs in addition to a gear sump for collecting lubricant in the upper part of a gear case
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- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0463—Grease lubrication; Drop-feed lubrication
- F16H57/0464—Grease lubrication
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/05—Features relating to lubrication or cooling or heating of chains
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chain Conveyers (AREA)
Abstract
The invention relates to the technical field of chains, in particular to a chain for an outdoor ladder with equal step distance and convenient maintenance. The technical scheme adopted by the invention is as follows: the roller structure comprises a roller structure with a sealing cover, wherein a sleeve structure is connected to the position of a central hole in the roller structure with the sealing cover, the inside of the sleeve structure is connected with an inner chain plate and an outer chain plate through a pin shaft structure, the pin shaft structure is composed of a lubricating D-shaped pin shaft and a retaining ring pin shaft, every two connecting pin shafts are adjacent to one lubricating D-shaped pin shaft, a retaining ring is arranged at the position of the outer side of the retaining ring pin shaft, and the two adjacent lubricating D-shaped pin shafts are connected with the retaining ring pin shaft through the shaft chain plate and an S-shaped outer chain plate. The invention has the advantages that: the whole safety and the durability in the using process are guaranteed, the whole safety of the outdoor ladder in the using process is higher, the whole lubricating performance in the using process is better, the period in the maintenance process is longer, and the whole using and maintaining cost is lower.
Description
Technical Field
The invention relates to the technical field of chains, in particular to a chain for an outdoor ladder with equal step distance and convenient maintenance.
Background
When the outdoor ladder with the equal step distance is used, the outdoor ladder is connected through the chain when moving, a common chain needs to be lubricated periodically and independently when being used, the whole safety is difficult to guarantee when being used, the maintenance operation is troublesome in the use process, particularly, when the chain structure is maintained, the comprehensive and uniform maintenance is needed, the maintenance efficiency is low, the maintenance cost is high, the outdoor ladder is easy to break down in the use process, the service life of the outdoor ladder can be influenced, rainwater, dust and the like in the external environment can easily enter the hinge of the chain when being used, and the whole lubricating performance in the use can be influenced.
Disclosure of Invention
The invention aims to provide a chain for an equal-step-distance convenient maintenance outdoor ladder, which adopts a brand-new structural design, can realize automatic lubrication operation in the use process, ensures the overall safety and durability in the use process, ensures the overall safety of the outdoor ladder in the use process to be higher, has better overall lubrication performance in the use process, has longer period in maintenance, has lower overall use and maintenance cost and has longer service life. The technical scheme of the invention is as follows:
a chain that is used for waiting step distance to conveniently maintain outdoor ladder which characterized in that: the roller structure with the sealing cover comprises a roller structure with the sealing cover, wherein a sleeve structure is connected to the position of a central hole in the inner portion of the roller structure with the sealing cover, the inner portion of the sleeve structure is connected with an inner chain plate and an outer chain plate through a pin shaft structure, the pin shaft structure is composed of a lubricating D-shaped pin shaft and a retaining ring pin shaft, every two connecting pin shafts are adjacent to the lubricating D-shaped pin shaft, the outer side position of the retaining ring pin shaft is provided with the retaining ring, every two adjacent lubricating D-shaped pin shafts are connected with the retaining ring pin shaft through a shaft chain plate and an S-shaped outer chain plate, the shaft chain plate, the S-shaped outer chain plate and a different hole outer chain plate form the outer chain plate, and a self-lubricating structure is arranged between the sleeve structure and the roller structure with the sealing cover.
Furthermore, the self-lubricating structure comprises a press-fit type pressure oil filling cup arranged at the center of the end face of one side of the lubricating D-shaped pin shaft and the retainer ring pin shaft, lubricating liquid conveying holes in the press-fit type pressure oil filling cup are communicated, lubricating oil storage grooves are arranged on the outer cylindrical surfaces of the lubricating D-shaped pin shaft and the retainer ring pin shaft, the lubricating oil storage grooves are communicated with the lubricating liquid conveying holes through cylindrical lubricating transition matching holes, the inner chain plates and the outer chain plates at the end face positions of two sides of the roller structure with the sealing cover are connected together through a first sealing washer and a second sealing washer, an S-shaped air hole groove with the same size is respectively arranged at the left side position of the lower end of the first sealing washer and the left side position of the upper end of the second sealing washer, and the outer cylindrical surface of the first sealing washer or the second sealing washer is communicated with the inner central hole through the S-shaped air hole groove, and the matching position of the inner cylindrical surface of the sleeve structure and the lubricating oil storage tank is provided with a circular arc lubricating oil transition matching safe and smooth groove.
Further, a self-lubricating structure between the sleeve structure and the roller structure with the sealing cover is a self-lubricating bearing.
Furthermore, the press-fit type pressure filling oil cup performs reset operation during pressure filling through a structure of a reset spring.
Further, the depth of the S-shaped air hole groove is half of the thickness of the first sealing gasket.
Further, be equipped with safe effective sclerosis layer on the sleeve structure, the thickness on safe effective sclerosis layer is 0.4-0.7 mm.
Furthermore, hardened protective layers are arranged on the outer surfaces of the lubricating D-shaped pin shaft and the check ring pin shaft, and the thickness of each hardened protective layer is 0.6-0.9 mm.
Further, the heat treatment hardness of the outer chain plate is greater than that of the inner chain plate.
The invention has the beneficial effects that:
1. the invention adopts a brand new structural design, can realize the operation of automatic lubrication in the using process, reduces the manual operation during maintenance, is more convenient to maintain, and can ensure the comprehensive lubrication without carrying out independent lubrication filling on each connecting position.
2. The whole safety and the durability in the using process are guaranteed, the whole safety of the outdoor ladder in the using process is higher, and the application range of the chain in the using process is effectively widened.
3. The integral lubrication performance is better in the using process, the period is longer when maintenance is carried out, the integral using and maintaining cost is lower, the service life is longer, and the integral using safety is more guaranteed.
Drawings
FIG. 1 is a schematic front view of a portion of the structure of the present invention;
FIG. 2 is a schematic top view of a portion of the structure of the present invention;
FIG. 3 is a schematic cross-sectional view taken at the position A-A according to the present invention;
FIG. 4 is a schematic cross-sectional view taken at the position B-B of the present invention;
FIG. 5 is a schematic cross-sectional view of the position C-C of the present invention;
FIG. 6 is a schematic structural view of a lubricated D-pin of the present invention;
FIG. 7 is a schematic structural view of a retainer ring pin shaft according to the present invention;
FIG. 8 is a schematic view of a first seal gasket of the present invention;
FIG. 9 is a schematic view of a second gasket of the present invention;
in the figure: 1. inner plate, 2, sleeve structure, 3, take sealed lid gyro wheel structure, 4, outer chain plate, 5, lubricated D type round pin axle, 6, retaining ring, 7, axle chain plate, 8, S type outer chain plate, 9, retaining ring round pin axle, 10, different hole outer chain plate, 11, first seal ring, 12, press-fit type pressure injection oil cup, 13, second seal ring, 14, the safe smooth groove of lubricating oil transition cooperation, 51, lubricated oil storage tank.
Detailed Description
As shown in fig. 1 to 9, a chain for an equal step distance convenient maintenance outdoor ladder adopts a brand new structural design, can realize the operation of automatic lubrication in the use process, ensures the overall safety and durability in the use process, ensures the overall safety of the outdoor ladder in the use process to be higher, has better overall lubrication performance in the use process, has longer period in the maintenance process, lower overall use and maintenance cost and longer service life. The roller structure comprises a roller structure 3 with a sealing cover, wherein a sleeve structure 2 is connected to the position of an inner central hole of the roller structure 3 with the sealing cover, the inside of the sleeve structure 2 is connected with an inner chain plate 1 and an outer chain plate 4 through a pin shaft structure, the pin shaft structure comprises a lubricating D-shaped pin shaft 5 and a retainer ring pin shaft 9, every two connecting pin shafts are adjacent to the lubricating D-shaped pin shaft 5, a retainer ring 6 is arranged at the position of the outer side of the retainer ring pin shaft 9, the lubricating D-shaped pin shaft 5 and the retainer ring pin shaft 9 are connected together through a shaft chain plate 7 and an S-shaped outer chain plate 8, the shaft chain plate 7, the S-shaped outer chain plate 8 and an outer chain plate 10 with different holes form the outer chain plate 4, and the strength and safety requirements of external connection of the whole chain are met. Sleeve structure 2 with be equipped with self-lubricating structure between the sealed gyro wheel structure 3 of area, the movable position of chain structure can carry out the lubricated operation of comprehensive even efficient in the use in the guarantee, can satisfy the convenient demand when outdoor ladder conveniently maintains and maintains.
Preferably, the self-lubricating structure comprises a press-fit type pressure oil filling cup 12 arranged at the center of the end face of one side of the lubricating D-shaped pin shaft 5 and the retainer ring pin shaft 9, the lubricating liquid delivery holes in the press-fit type pressure oil filling cup 12 are communicated, the outer cylindrical surfaces of the lubricating D-shaped pin shaft 5 and the retainer ring pin shaft 9 are both provided with lubricating oil storage grooves 51, the lubricating oil storage tank 51 is communicated with the lubricating liquid delivery hole through a cylindrical lubricating transition matching hole, the inner chain plate 1 and the outer chain plate 4 at the end face positions at both sides of the roller structure 3 with the sealing cover are connected together through a first sealing gasket 11 and a second sealing gasket 13, and the left side position of the lower end of the first sealing washer 11 and the left side position of the upper end of the second sealing washer 13 are respectively provided with an S-shaped air hole groove with the same size, and the holes are arranged on the outer chain plate side and the chain runs clockwise in the bending direction of the air holes. The S-shaped air hole groove is used for communicating the outer side cylindrical surface and the inner center hole of the first sealing washer 11 or the second sealing washer 13, the inner cylindrical surface of the sleeve structure 2 and the lubricating oil storage groove 51 are provided with an arc-shaped lubricating oil transition fit safe smooth groove 14, automatic uniform conveying of lubricating oil inside the structure is guaranteed, the oil storage groove is arranged above the step chain, and when the hinge pair runs above the escalator track, grease is continuously supplied to a forced sliding friction point below the hinge pair through self gravity. When the hinge pair runs below the escalator, the hinge pair is not stressed and does not generate sliding friction, and the grease returns to the oil storage tank through the self gravity. The sealing washer is assembled between the inner-section chain plate and the outer-section chain plate, the sealing washer is slightly deformed by the extrusion of the inner-section chain plate and the outer-section chain plate, and the sealing washer is in sliding friction with the inner-section chain plate and the outer-section chain plate when the step chain hinge pair rotates, so that the lubricating device has good lubricating property and wear resistance. The clearance between the sleeve and the outer-section chain plate, the pin shaft oil filling hole, the side clearance between the pin shaft and the sleeve and the oil storage groove between the pin shaft and the sleeve form a hinge pair oil storage space, lubricating grease is injected into the oil storage space through the press-fit type pressure oil filling cup on the pin shaft after assembly, the sealing washer is provided with an air hole, the oil storage space is prevented from being vacuumized, the lubricating grease is conveniently injected, and the phenomenon that the grease overflows at the air hole of the sealing washer to stop oil filling is seen. The air hole direction of the sealing washer is opposite to the running direction of the step chain, the air hole of the sealing washer is a bent channel, the air hole of the sealing washer is filled with grease, rainwater, dust and the like cannot enter the hinge friction pair in an outdoor environment, and the lubricating friction performance of the hinge pair is further reduced.
Preferably, the self-lubricating structure between the sleeve structure 2 and the roller structure 3 with the sealing cover is a self-lubricating bearing, so that the efficiency of the whole production is higher, but the cost of the whole production is higher, and the whole cost of the maintenance is relatively higher.
Preferably, the press-fit type pressure filling oil cup 12 is reset by a reset spring structure during pressure filling, so that the structural safety during automatic lubrication is better, and the durability is stronger.
Preferably, the depth of the S-shaped air hole groove is half of the thickness of the first sealing washer 11, so that the structural strength of the position is higher, the service life is longer and the safety is guaranteed.
Preferably, a safe and effective hardened layer is arranged on the sleeve structure 2, and the thickness of the safe and effective hardened layer is 0.4-0.7mm, so that the use stability of the structure is better.
Preferably, the outer surfaces of the lubricating D-shaped pin shaft 5 and the retainer ring pin shaft 9 are provided with hardened protective layers, the thickness of each hardened protective layer is 0.6-0.9mm, the service life of the lubricating D-shaped pin shaft is further prolonged, and the maintenance period is longer.
Preferably, the heat-treated hardness of the outer link plate 4 is greater than the heat-treated hardness of the inner link plate 1, so that the structural strength of the entire chain can be further improved, and the entire service life can be optimized.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications or substitutions can be made without departing from the principle of the present invention, and these modifications or substitutions should also be considered as the protection scope of the present invention.
Claims (8)
1. A chain that is used for waiting step distance to conveniently maintain outdoor ladder which characterized in that: comprises a roller structure (3) with a sealing cover, a sleeve structure (2) is connected with the position of an inner central hole of the roller structure (3) with the sealing cover, the interior of the sleeve structure (2) is connected with the inner chain plate (1) and the outer chain plate (4) through a pin shaft structure, the pin structure consists of a lubricating D-shaped pin shaft (5) and a retainer ring pin shaft (9), every two connecting pin shafts are adjacent to one lubricating D-shaped pin shaft (5), the outer side of each retainer ring pin shaft (9) is provided with a retainer ring (6), two adjacent lubricating D-shaped pin shafts (5) are connected with the retainer ring pin shafts (9) through a shaft chain plate (7) and an S-shaped outer chain plate (8), the shaft chain plate (7), the S-shaped outer chain plate (8) and the different-hole outer chain plate (10) form the outer chain plate (4), and a self-lubricating structure is arranged between the sleeve structure (2) and the roller structure (3) with the sealing cover.
2. The chain for the convenient maintenance outdoor ladder with equal step distance as claimed in claim 1, wherein: the self-lubricating structure comprises a lubricating D-shaped pin shaft (5) and a retainer ring pin shaft (9), wherein a press-fit type pressure filling oil cup (12) is arranged at the center of one side end face of the lubricating D-shaped pin shaft (5), lubricating liquid conveying holes in the press-fit type pressure filling oil cup (12) are communicated, lubricating oil storage grooves (51) are formed in the outer cylindrical surfaces of the lubricating D-shaped pin shaft (5) and the retainer ring pin shaft (9), the lubricating oil storage grooves (51) are communicated with the lubricating liquid conveying holes through cylindrical lubricating transition matching holes, the inner chain plate (1) and the outer chain plate (4) at the end face positions on the two sides of the roller structure (3) with the sealing cover are connected together through a first sealing washer (11) and a second sealing washer (13), and S-shaped air hole grooves with the same size are respectively formed in the left side position of the lower end of the first sealing washer (11) and the left side position of the upper end of the second sealing washer (13), the S-shaped air hole groove is used for communicating the outer cylindrical surface and the inner central hole of the first sealing washer (11) or the second sealing washer (13), and an arc-shaped lubricating oil transition fit safe and smooth groove (16) is arranged at the matching position of the inner cylindrical surface of the sleeve structure (2) and the lubricating oil storage groove (51).
3. The chain for the convenient maintenance outdoor ladder with equal step distance as claimed in claim 1, wherein: and a self-lubricating structure between the sleeve structure (2) and the roller structure (3) with the sealing cover is a self-lubricating bearing.
4. A chain for an equal step distance convenient maintenance outdoor ladder according to claim 2, wherein: the press-fit type pressure filling oil cup (12) performs reset operation during pressure filling through a reset spring structure.
5. A chain for an equal step distance convenient maintenance outdoor ladder according to claim 2, wherein: the depth of the S-shaped air hole groove is half of the thickness of the first sealing gasket (11).
6. A chain for an equal step distance convenient maintenance outdoor ladder according to claim 2, wherein: be equipped with safe effective sclerosis layer on sleeve structure (2), the thickness on safe effective sclerosis layer is 0.4-0.7 mm.
7. A chain for an equal step distance convenient maintenance outdoor ladder according to claim 2, wherein: and hardening protective layers are arranged on the outer surfaces of the lubricating D-shaped pin shaft (5) and the retainer ring pin shaft (9), and the thickness of each hardening protective layer is 0.6-0.9 mm.
8. A chain for an equal step distance convenient maintenance outdoor ladder according to claim 2, wherein: the heat treatment hardness of the outer chain plate (4) is greater than that of the inner chain plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111454281.4A CN114110089B (en) | 2021-12-01 | 2021-12-01 | Chain for constant-step-distance convenient maintenance outdoor ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111454281.4A CN114110089B (en) | 2021-12-01 | 2021-12-01 | Chain for constant-step-distance convenient maintenance outdoor ladder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114110089A true CN114110089A (en) | 2022-03-01 |
| CN114110089B CN114110089B (en) | 2023-05-09 |
Family
ID=80369600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111454281.4A Active CN114110089B (en) | 2021-12-01 | 2021-12-01 | Chain for constant-step-distance convenient maintenance outdoor ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114110089B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1258753A (en) * | 1968-01-25 | 1971-12-30 | ||
| JP2006316828A (en) * | 2005-05-10 | 2006-11-24 | Tsubakimoto Chain Co | Chain with oil reservoir |
| JP2009236149A (en) * | 2008-03-26 | 2009-10-15 | Honda Motor Co Ltd | Chain transmission device with lubricating structure |
| JP2013028462A (en) * | 2011-07-29 | 2013-02-07 | Tsubakimoto Chain Co | Conveyer chain |
| CN105317928A (en) * | 2015-11-27 | 2016-02-10 | 苏州环球集团科技股份有限公司 | Lubricating and sealing structure of step chain |
| CN105317929A (en) * | 2015-11-27 | 2016-02-10 | 苏州环球集团科技股份有限公司 | Lubrication-free step chain |
| CN109502464A (en) * | 2018-12-20 | 2019-03-22 | 杭州斯沃德电梯有限公司 | A kind of main drive of escalator |
| CN112173935A (en) * | 2020-08-20 | 2021-01-05 | 环球传动泰州有限公司 | Waterproof step chain with special structure |
| CN112429620A (en) * | 2020-12-14 | 2021-03-02 | 杭州自强链传动有限公司 | Self-lubricating environment-friendly footboard chain |
-
2021
- 2021-12-01 CN CN202111454281.4A patent/CN114110089B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1258753A (en) * | 1968-01-25 | 1971-12-30 | ||
| JP2006316828A (en) * | 2005-05-10 | 2006-11-24 | Tsubakimoto Chain Co | Chain with oil reservoir |
| JP2009236149A (en) * | 2008-03-26 | 2009-10-15 | Honda Motor Co Ltd | Chain transmission device with lubricating structure |
| JP2013028462A (en) * | 2011-07-29 | 2013-02-07 | Tsubakimoto Chain Co | Conveyer chain |
| CN105317928A (en) * | 2015-11-27 | 2016-02-10 | 苏州环球集团科技股份有限公司 | Lubricating and sealing structure of step chain |
| CN105317929A (en) * | 2015-11-27 | 2016-02-10 | 苏州环球集团科技股份有限公司 | Lubrication-free step chain |
| CN109502464A (en) * | 2018-12-20 | 2019-03-22 | 杭州斯沃德电梯有限公司 | A kind of main drive of escalator |
| CN112173935A (en) * | 2020-08-20 | 2021-01-05 | 环球传动泰州有限公司 | Waterproof step chain with special structure |
| CN112429620A (en) * | 2020-12-14 | 2021-03-02 | 杭州自强链传动有限公司 | Self-lubricating environment-friendly footboard chain |
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| Publication number | Publication date |
|---|---|
| CN114110089B (en) | 2023-05-09 |
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