CN113879938B - Elevator traction rope cutting device and method thereof - Google Patents
Elevator traction rope cutting device and method thereof Download PDFInfo
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- CN113879938B CN113879938B CN202111260158.9A CN202111260158A CN113879938B CN 113879938 B CN113879938 B CN 113879938B CN 202111260158 A CN202111260158 A CN 202111260158A CN 113879938 B CN113879938 B CN 113879938B
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- traction rope
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- 238000005520 cutting process Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000010959 steel Substances 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
- B66B7/06—Arrangements of ropes or cables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0087—Devices facilitating maintenance, repair or inspection tasks
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- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The application belongs to the technical field of elevator installation and maintenance, and provides an elevator hoisting rope cutting device and a method thereof, wherein the elevator hoisting rope cutting device mainly comprises an upper clamping plate assembly, a lower clamping plate assembly and an adjusting assembly; the upper clamping plate assembly comprises an upper clamping plate, a first auxiliary clamping plate and a first fixing assembly, and a first clamping space for installing a traction rope is formed between the upper clamping plate and the first auxiliary clamping plate; the lower clamping plate assembly comprises a lower clamping plate, a second auxiliary clamping plate and a second fixing assembly, and a second clamping space for installing the traction rope is formed between the lower clamping plate and the second auxiliary clamping plate; the adjusting assembly comprises an adjusting rod and an adjusting piece connected with the adjusting rod, the adjusting rod passes through the lower clamping plate and the upper clamping plate and then is connected with the adjusting piece, and the connecting position of the adjusting piece on the adjusting rod is adjustable. The application can make the operation of cutting the traction rope simpler, more convenient and more reliable, and greatly improves the operation efficiency.
Description
Technical Field
The application belongs to the technical field of elevator installation and maintenance, and particularly relates to an elevator hoisting rope cutting device and an elevator hoisting rope cutting method.
Background
When the elevator runs for a period of time, the traction rope is stretched to have a local elongation condition, and when the traction rope is stretched, the stress of the traction rope is uneven due to different elongation degrees of all parts, so that the normal running of the elevator is affected; therefore, cutting is required when the elongation of the hoist rope reaches a certain degree.
At present, in the aspect of cutting the hoisting ropes in the elevator industry, the method generally adopted is as follows: the bottom of the counterweight is propped up by a batten or a steel girder at the pit, and the lift car is lifted up by a chain block at the top of a machine room or a well, so that the whole relaxation of the hauling rope is realized, and then the hoisting rope is cut. However, the method has the advantages of large number of used tools, large volume, heavy weight, inconvenient carrying, large dynamic and static construction operation and obvious influence on households; after the whole traction rope is loosened, the traction rope is easy to separate from the corresponding rope groove, after cutting, each traction rope needs to be carefully checked and confirmed to return to the corresponding rope groove of each rope wheel, otherwise, the dislocation operation causes elevator damage or accidents; this way of totally slackening the whole hoisting rope is also lacking in flexibility and pertinence for the case where only a single or partial hoisting rope needs to be cut.
Disclosure of Invention
In order to overcome the above-mentioned drawbacks of the prior art, an object of the present application is to provide an elevator hoisting rope cutting device and method thereof, so that the cutting operation of the hoisting rope can be simpler and more reliable.
The technical scheme adopted for solving the technical problems is as follows:
an elevator traction rope cutting device comprises an upper clamping plate assembly, a lower clamping plate assembly and an adjusting assembly;
the upper clamping plate assembly comprises an upper clamping plate, a first auxiliary clamping plate and a first fixing assembly which can be used for clamping and fixing the upper clamping plate and the first auxiliary clamping plate, and a first clamping space for installing a traction rope is formed between the upper clamping plate and the first auxiliary clamping plate;
the lower clamping plate assembly comprises a lower clamping plate, a second auxiliary clamping plate and a second fixing assembly which can be used for clamping and fixing the lower clamping plate and the second auxiliary clamping plate, and a second clamping space for installing the traction rope is formed between the lower clamping plate and the second auxiliary clamping plate;
the adjusting assembly comprises an adjusting rod and an adjusting piece connected with the adjusting rod, the adjusting rod passes through the lower clamping plate and the upper clamping plate and then is connected with the adjusting piece, and the connecting position of the adjusting piece on the adjusting rod is adjustable.
Preferably, a first anti-slip lining plate is arranged on the side surface of the upper clamping plate and the first auxiliary clamping plate, which is positioned in the first clamping space.
Preferably, a second anti-slip lining plate is arranged on the side surface of the lower clamping plate and the second auxiliary clamping plate, which is positioned in the second clamping space.
Preferably, the first anti-slip lining plate and the second anti-slip lining plate are respectively provided with a positioning groove corresponding to the traction rope.
Preferably, the upper clamping plate assembly and the lower clamping plate assembly are arranged on the adjusting rod from top to bottom, and the first clamping space and the second clamping space are overlapped in the vertical direction.
Preferably, the upper clamping plate and the lower clamping plate are provided with a plurality of through holes along the horizontal direction, and the adjusting rod is arranged on the through holes in a penetrating way;
corresponding to the through holes, a plurality of first auxiliary clamping plates are arranged on the upper clamping plate so as to form a plurality of first clamping spaces; the lower clamping plate is provided with a plurality of second auxiliary clamping plates so as to form a plurality of second clamping spaces.
Preferably, the adjusting rod is an adjusting screw, and the adjusting piece is an adjusting nut matched with the adjusting screw.
Preferably, the first fixing components are symmetrically arranged at two sides of the first clamping space along the vertical direction, and the second fixing components are symmetrically arranged at two sides of the second clamping space.
The elevator traction rope cutting method is suitable for the elevator traction rope cutting device, and comprises the following steps of:
s10, installing and fixing a traction rope on the upper clamping plate assembly, then cutting the traction rope according to the requirement, installing the lower clamping plate assembly on the traction rope to be cut, and installing the adjusting assembly between the upper clamping plate assembly and the lower clamping plate assembly;
s20, loosening the clamping of the upper clamping plate assembly to a traction rope to be cut, and adjusting the state of the adjusting assembly to change the relative distance between the upper clamping plate assembly and the lower clamping plate assembly so as to reserve the length to be cut;
s30, cutting the traction rope and installing the upper clamping plate assembly again; or, cutting the traction rope after the upper clamping plate assembly is installed again;
s40, loosening the clamping of the lower clamping plate assembly on the traction rope, and returning the traction rope to a normal use state.
Further, when there are a plurality of the towlines to be cut, there are also the following steps:
s50, detaching the lower clamping plate assembly and the adjusting assembly, installing the lower clamping plate assembly and the adjusting assembly corresponding to the next hoisting rope to be cut, and repeating the steps S20-S40.
Compared with the prior art, the application has the beneficial effects that:
by adopting the device and the method, the number, the volume and the weight of tools required by cutting the traction rope in the traditional technology are greatly reduced, the whole carrying is convenient, the dynamic and static of construction operation are small, and the influence on households is small. In addition, in the use process, the traction ropes are not completely and integrally loosened, but are purposefully loosened and tightened through the matching between the upper clamping plate assembly and the lower clamping plate assembly, so that the situation that the traction ropes are separated from the corresponding rope grooves is avoided, the matching inspection of each traction rope and each rope groove after cutting is avoided, the cutting operation efficiency is improved in terms of a method, elevator damage or accidents caused by dislocation of the traction ropes and the rope grooves are avoided, and the use is safer and more reliable. For the situation that only a single rope or part of the hauling rope needs to be cut, the scheme can flexibly deal with specific situations, and is good in flexibility and convenient to popularize and apply.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic front view of an embodiment of the present application.
Fig. 2 is a schematic diagram illustrating an embodiment of the present application.
Fig. 3 is a schematic front view of another embodiment of the present application.
Fig. 4 is a schematic diagram of an attached structure according to another embodiment of the present application.
Fig. 5 is a schematic side view of the present application.
Wherein:
1-an upper clamping plate assembly, 11-an upper clamping plate, 12-a first auxiliary clamping plate, 13-a first fixing assembly, 14-a through hole and 15-a first anti-slip lining plate;
2-a lower clamping plate assembly, 21-a lower clamping plate, 22-a second auxiliary clamping plate, 23-a second fixing assembly and 24-a second anti-slip lining plate;
3-adjusting components, 31-adjusting screws and 32-adjusting nuts;
4-hoisting ropes.
Detailed Description
In order that the above-recited objects, features and advantages of the present application will be more clearly understood, a more particular description of the application will be rendered by reference to the appended drawings and appended detailed description. The embodiments of the present application and the features in the embodiments may be combined with each other without collision. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, and the described embodiments are merely some, rather than all, embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, are intended to fall within the scope of the present application.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
Example 1
As shown in fig. 1 to 5, there is provided an elevator hoisting rope cutting apparatus in the present embodiment, which mainly includes an upper clamping plate assembly 1, a lower clamping plate assembly 2 and an adjusting assembly 3; the upper clamping plate assembly 1 and the lower clamping plate assembly 2 are arranged up and down, the adjusting assembly 3 is arranged between the upper clamping plate assembly 1 and the lower clamping plate assembly 2 in a connecting mode, and the relative distance between the upper clamping plate assembly 1 and the lower clamping plate assembly 2 is changed by adjusting the state of the adjusting assembly 3.
Specifically, the upper clamping plate assembly 1 comprises an upper clamping plate 11, a first auxiliary clamping plate 12 and a first fixing assembly 13 which can be used for clamping and fixing the upper clamping plate 11 and the first auxiliary clamping plate 12, wherein a first clamping space for installing the traction rope 4 is formed between the upper clamping plate 11 and the first auxiliary clamping plate 12. The lower clamping plate assembly 2 comprises a lower clamping plate 21, a second auxiliary clamping plate 22 and a second fixing assembly 23 which can be used for clamping and fixing the lower clamping plate 21 and the second auxiliary clamping plate 22, and a second clamping space for installing the traction ropes 4 is formed between the lower clamping plate 21 and the second auxiliary clamping plate 22.
As a preferred solution, in this embodiment, the upper clamping plate 11 and the lower clamping plate 21 are both L-shaped in side view, and include a horizontal plate section for being mounted with the adjusting assembly 3, and a vertical plate section for forming the first clamping space and the second clamping space with the first auxiliary clamping plate 12 and the second auxiliary clamping plate 22. In a specific application, the side view of the upper and lower clamping plates 11, 21 may be configured to have a T-shape, which is not particularly limited herein.
In addition, since the hoist rope 4 is used in actual use, there are a plurality of groups of use cases, as shown in fig. 1 and 3; therefore, in this embodiment, the upper clamping plate 11 is configured to be elongated, and a plurality of the first clamping spaces are correspondingly configured to clamp and fix each of the traction ropes 4 in a one-to-one correspondence. The lower clamping plate assembly 2 can be used for clamping only one traction rope 4, so that the flexibility of the whole device in use is improved, and the cost investment is reduced.
The adjusting component 3 comprises an adjusting rod and an adjusting piece connected with the adjusting rod, the adjusting rod passes through the lower clamping plate 21 and the upper clamping plate 11 and then is connected with the adjusting piece, and the connecting position of the adjusting piece on the adjusting rod is adjustable; thereby changing the relative distance between the upper clamping plate assembly 1 and the lower clamping plate assembly 2 by changing the connection position between the adjusting member and the adjusting lever.
In a preferred embodiment, the adjusting rod is an adjusting screw 31, and the adjusting member is an adjusting nut 32 adapted to the adjusting screw 31, so that the upper clamping plate assembly 1 and the lower clamping plate assembly 2 have a self-locking function during threaded connection on the premise of adjustable relative positions.
Further, a plurality of through holes 14 are provided on the upper clamping plate 11 along the horizontal direction corresponding to the adjusting screw 31, the through holes are also provided on the lower clamping plate 21, and the through holes are all provided on the horizontal plate sections of the upper clamping plate 11 and the lower clamping plate 21. As a preferred solution, the adjusting screw 31 in this embodiment penetrates from the through hole of the lower plate 21 from bottom to top, penetrates from the through hole 14 of the upper plate 11, and is then screwed with the adjusting nut 32, so that when the adjusting assembly 3 is adjusted, the screwing operation of the adjusting nut 32 can be conveniently performed above the whole device, and the operation is simpler.
In addition, corresponding to the position of the through hole 14 on the upper clamping plate 11, a plurality of first auxiliary clamping plates 12 are arranged on the upper clamping plate 11, so that a plurality of first clamping spaces are formed on the vertical plate section of the upper clamping plate 11, and clamping and fixing of a plurality of groups of traction ropes 4 are realized. A plurality of second auxiliary clamping plates 22 are arranged on the lower clamping plate 21 so as to form a plurality of second clamping spaces; in this embodiment, in consideration of convenience and flexibility in use, the lower clamping plate assembly 2 is disposed below only one of the first clamping spaces, and only one of the through holes is disposed on the lower clamping plate 21 for the adjusting screw 31 to pass through; and forms a second clamping space with one of the second auxiliary clamping plates 22 to realize corresponding clamping and cutting operation of the single traction rope 4.
As a preferable solution, the upper clamping plate assembly 1 and the lower clamping plate assembly 2 are disposed on the adjusting rod from top to bottom, and the first clamping space and the second clamping space are disposed in an overlapping manner in a vertical direction, so as to realize simultaneous clamping and fixing of different parts of the hoisting rope 4 to be cut.
Further, a first anti-slip lining plate 15 is arranged on the side surface of the upper clamping plate 11, the first auxiliary clamping plate 12, which is located in the first clamping space, a positioning groove is arranged on the first anti-slip lining plate 15 corresponding to the traction rope 4, and a gap exists between the opposite first anti-slip lining plates 15 when the traction rope is in a clamping state. The side surfaces of the lower clamping plate 21 and the second auxiliary clamping plate 22, which are positioned in the second clamping space, are provided with a second anti-slip lining plate 24, and the second anti-slip lining plate 24 is also provided with a positioning groove corresponding to the traction rope 4. The shape of the positioning groove is matched with the section shape of the traction rope 4 to be clamped, and the traction rope 4 comprises a circular strip-shaped traction rope and a flat strip-shaped traction rope. And the positioning groove on the upper clamping plate assembly 1 and the positioning groove on the lower clamping plate assembly 2 should be arranged to be completely overlapped.
Further, in this embodiment, the first fixing component 13 and the second fixing component 14 each include a locking bolt and a locking nut, and the locking bolts penetrate through the upper clamping plate 11, the first anti-slip lining plate 15 and the first auxiliary clamping plate 12 and then are fastened with the locking nuts to form the first clamping space; the locking bolt passes through the lower clamping plate 21, the second anti-slip lining plate 24 and the second auxiliary clamping plate 22 and is then fastened and connected with the locking nut so as to form the second clamping space.
In addition, in this embodiment, the first fixing members 13 are symmetrically disposed on both sides of the first clamping space along the vertical direction, and the second fixing members 14 are symmetrically disposed on both sides of the second clamping space, so that the clamping forces on the traction ropes 4 in the first and second clamping spaces are balanced, and the reliable clamping state is ensured.
In order to facilitate further understanding of the present solution, the present embodiment further provides an elevator hoisting rope cutting method, which is applicable to the above-mentioned elevator hoisting rope cutting device, and specifically includes the following steps:
s10, when in use, the traction rope 4 is installed and fixed in the first clamping space on the upper clamping plate assembly 1 through the upper clamping plate 11, the first auxiliary clamping plate 12 and the first anti-slip lining plate 15; then, according to the required cutting traction rope 4, the lower clamping plate assembly 2 is arranged at a position below the upper clamping plate assembly 1 on the traction rope 4 to be cut through the lower clamping plate 21, the second auxiliary clamping plate 22 and the second anti-slip lining plate 24, so that different upper and lower parts of the traction rope 4 to be cut are respectively clamped and fixed on the upper clamping plate assembly 1 and the lower clamping plate assembly 2; the adjusting assembly 3 is then installed between the upper clamping plate assembly 1 and the lower clamping plate assembly 2, and the traction ropes 4 to be cut are clamped and fixed in an upper and lower double-point mode.
S20, loosening the clamping of the upper clamping plate assembly 1 to the traction rope 4 to be cut, and keeping the clamping state of the lower clamping plate assembly 2 to the traction rope 4 to be cut, wherein the traction rope 4 is clamped and fixed at a lower single point; at this time, the state of the adjusting assembly 3 is adjusted to change the relative distance between the upper clamping plate assembly 1 and the lower clamping plate assembly 2, so that the traction rope 4 to be cut can be lifted, and when the traction rope is lifted to a set tensioning degree, the traction rope part with the length to be cut can be obtained.
S30, after the traction rope 4 is cut, the upper clamping plate assembly 1 is installed again to clamp and fix the traction rope 4 in a double-point mode; or the cutting operation of the traction rope 4 may be performed after the upper clamping plate assembly 1 is installed again.
S40, the clamping of the lower clamping plate assembly 2 on the traction rope 4 can be released, and the traction rope 4 returns to a normal use state.
Further, when there are a plurality of the hoist ropes 4 to be cut, there are also the following steps:
s50, after cutting of the previous traction rope 4 is completed, loosening the clamping of the lower clamping plate assembly 2 on the traction rope 4 and disassembling the second clamping space; then, the connection state between the adjusting nut 32 and the adjusting screw 31 is loosened, so that the adjusting component 3 can be installed and used at different positions of the through holes 14, and the adjusting component 3 and the lower clamping plate component 2 are installed corresponding to the position of the traction rope 4 to be cut, and the steps S20-S40 are repeated at the moment.
The present application is not limited to the preferred embodiments, and any modifications, equivalent variations and modifications made to the above embodiments according to the technical principles of the present application are within the scope of the technical proposal of the present application.
Claims (5)
1. The elevator traction rope cutting method is suitable for an elevator traction rope cutting device, and the cutting device comprises an upper clamping plate assembly, a lower clamping plate assembly and an adjusting assembly;
the upper clamping plate assembly comprises an upper clamping plate, a first auxiliary clamping plate and a first fixing assembly which can be used for clamping and fixing the upper clamping plate and the first auxiliary clamping plate, a first clamping space for installing a traction rope is formed between the upper clamping plate and the first auxiliary clamping plate, and a first anti-slip lining plate is arranged on the side surface, located in the first clamping space, of the upper clamping plate and the first auxiliary clamping plate;
the lower clamping plate assembly comprises a lower clamping plate, a second auxiliary clamping plate and a second fixing assembly which can be used for clamping and fixing the lower clamping plate and the second auxiliary clamping plate, a second clamping space for installing the traction rope is formed between the lower clamping plate and the second auxiliary clamping plate, and a second anti-slip lining plate is arranged on the side surface of the lower clamping plate and the second auxiliary clamping plate, which is positioned in the second clamping space;
the first anti-slip lining plate and the second anti-slip lining plate are respectively provided with a positioning groove corresponding to the traction rope;
the adjusting assembly comprises an adjusting rod and an adjusting piece connected with the adjusting rod, the adjusting rod passes through the lower clamping plate and the upper clamping plate and then is connected with the adjusting piece, and the connecting position of the adjusting piece on the adjusting rod is adjustable;
the elevator hoisting rope cutting method is characterized by comprising the following steps of:
s10, installing and fixing a traction rope on the upper clamping plate assembly, then cutting the traction rope according to the requirement, installing the lower clamping plate assembly on the traction rope to be cut, and installing the adjusting assembly between the upper clamping plate assembly and the lower clamping plate assembly;
s20, loosening the clamping of the upper clamping plate assembly to a traction rope to be cut, and adjusting the state of the adjusting assembly to change the relative distance between the upper clamping plate assembly and the lower clamping plate assembly so as to reserve the length to be cut;
s30, cutting the traction rope and installing the upper clamping plate assembly again; or, cutting the traction rope after the upper clamping plate assembly is installed again;
s40, loosening the clamping of the lower clamping plate assembly on the traction rope, and returning the traction rope to a normal use state;
s50, detaching the lower clamping plate assembly and the adjusting assembly, installing the lower clamping plate assembly and the adjusting assembly corresponding to the next hoisting rope to be cut, and repeating the steps S20-S40.
2. The method of claim 1, wherein the upper and lower clamping plate assemblies are disposed on the adjustment bar from top to bottom, and the first clamping space and the second clamping space overlap in a vertical direction.
3. The method for cutting the elevator traction rope according to claim 2, wherein a plurality of through holes are formed in the upper clamping plate and the lower clamping plate along the horizontal direction, and the adjusting rod is arranged on the through holes in a penetrating manner;
corresponding to the through holes, a plurality of first auxiliary clamping plates are arranged on the upper clamping plate so as to form a plurality of first clamping spaces; the lower clamping plate is provided with a plurality of second auxiliary clamping plates so as to form a plurality of second clamping spaces.
4. A method of cutting an elevator hoisting rope according to claim 1 or 3, characterized in that the adjusting rod is an adjusting screw and the adjusting member is an adjusting nut adapted to the adjusting screw.
5. The method of cutting an elevator hoisting rope according to claim 4, wherein the first fixing members are symmetrically disposed at both sides of the first clamping space in a vertical direction, and the second fixing members are symmetrically disposed at both sides of the second clamping space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111260158.9A CN113879938B (en) | 2021-10-28 | 2021-10-28 | Elevator traction rope cutting device and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111260158.9A CN113879938B (en) | 2021-10-28 | 2021-10-28 | Elevator traction rope cutting device and method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113879938A CN113879938A (en) | 2022-01-04 |
| CN113879938B true CN113879938B (en) | 2023-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111260158.9A Active CN113879938B (en) | 2021-10-28 | 2021-10-28 | Elevator traction rope cutting device and method thereof |
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| CN (1) | CN113879938B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207581115U (en) * | 2017-09-08 | 2018-07-06 | 菱王电梯股份有限公司 | A kind of elevator dragging wire rope length adjustment auxiliary device |
| CN108792892A (en) * | 2017-04-26 | 2018-11-13 | 株式会社日立制作所 | The maintaining method of double-deck elevator and double-deck elevator |
| CN211945813U (en) * | 2020-03-11 | 2020-11-17 | 贵州葳特电梯工程有限公司 | Elevator steel wire rope clamping device |
-
2021
- 2021-10-28 CN CN202111260158.9A patent/CN113879938B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108792892A (en) * | 2017-04-26 | 2018-11-13 | 株式会社日立制作所 | The maintaining method of double-deck elevator and double-deck elevator |
| CN207581115U (en) * | 2017-09-08 | 2018-07-06 | 菱王电梯股份有限公司 | A kind of elevator dragging wire rope length adjustment auxiliary device |
| CN211945813U (en) * | 2020-03-11 | 2020-11-17 | 贵州葳特电梯工程有限公司 | Elevator steel wire rope clamping device |
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| Publication number | Publication date |
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| CN113879938A (en) | 2022-01-04 |
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