CN111807182A - Operation method convenient for safe installation of elevator - Google Patents
Operation method convenient for safe installation of elevator Download PDFInfo
- Publication number
- CN111807182A CN111807182A CN202010692478.0A CN202010692478A CN111807182A CN 111807182 A CN111807182 A CN 111807182A CN 202010692478 A CN202010692478 A CN 202010692478A CN 111807182 A CN111807182 A CN 111807182A
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- elevator
- limiting
- limit switch
- rod
- buffer
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- 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
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0037—Performance analysers
-
- 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
- B66B5/28—Buffer-stops for cars, cages, or skips
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
Abstract
The invention discloses an operation method convenient for safe installation of an elevator, which comprises the steps that an elevator line and the elevator are fixed together through auxiliary installation equipment in the installation process of the elevator, the auxiliary installation equipment comprises a limiting clamping plate and a limiting block, and a limiting rod with a hollow structure is arranged on the limiting block, so that when the elevator line enters the limiting rod, the limiting block can well play a role in fixing the elevator line; the invention also comprises detecting the operation of the elevator after the elevator is installed: detecting whether the actions of an upper limit switch, a lower limit switch, an upper limit switch and a lower limit switch of the elevator are correct or not; detecting whether the buffer overrun distance of the elevator is within a safety range; whether the deviation between the center of the buffer and the lift car and the deviation between the center of the buffer and the center of the collision plate of the counterweight are within a safety range or not is detected, and the elevator is safer and more reliable to use after being installed by arranging multiple safe operation detection methods for elevator installation.
Description
Technical Field
The invention relates to the technical field of elevator safety, in particular to an operation method convenient for elevator safety installation.
Background
The elevator is a permanent transportation device which is used for serving a plurality of specific floors in a building, the lift car of the elevator runs on at least two rows of rigid rails perpendicular to the horizontal plane or the inclination angle of a plumb line is smaller than fifteen degrees, and the permanent transportation device moves.
At present, elevators are generally installed in high-rise buildings, and the elevators are used as auxiliary equipment for people to go upstairs and downstairs in daily travel, so that great convenience is brought to people in travel; however, when the elevator is generally installed, the elevator line is possibly too long, so that the elevator is troublesome to fix with the elevator, the working efficiency of workers can be reduced, the workload of the workers is increased, and the safety of elevator installation is reduced; moreover, the existing elevator installation does not need to be installed in the installation process and after installation in a large amount of safety aspects based on the consideration of installation cost in the whole safety process, so under the condition that the use frequency of the elevator is gradually improved, the improvement of the safety of the elevator installation becomes a technical problem to be solved urgently.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an operation method convenient for safe installation of an elevator. The elevator wire and the elevator are fixed together by the auxiliary installation equipment in the elevator installation process, so that the problem that the wire and the elevator are troublesome to connect due to the fact that the elevator wire is too long is solved, the elevator installation safety is improved, and after the elevator is installed, the elevator is safer and more reliable to use after being installed by arranging multiple safe operation detection methods for elevator installation.
The purpose of the invention can be realized by the following technical scheme: an operating method for facilitating safe installation of an elevator, comprising the steps of:
the method comprises the following steps: fixing the elevator wire and the elevator through auxiliary installation equipment in the elevator installation process;
firstly, fixing a limiting clamping plate on an elevator, after the top of the elevator is fixed with the limiting clamping plate together, directly inserting a limiting rod into a limiting block, when the limiting rod is completely inserted into the limiting block with a groove structure, then directly inserting a connecting rod with a threaded structure into a fixing plate from the left side of the fixing plate with a through hole structure inside, then rotating a fixing rod with a threaded structure outside, so that the fixing rod can be fixed with the connecting rod with the threaded structure inside under the action of external force, and the connecting rod and the fixing rod can respectively enter the through hole inside the limiting rod through the fixing plate, so that the limiting rod can be firmly fixed inside the limiting block;
step two: the method for detecting the operation of the elevator after the elevator is installed comprises the following steps:
s1: detecting whether the actions of an upper limit switch, a lower limit switch, an upper limit switch and a lower limit switch of the elevator are correct or not;
s2: detecting whether the buffer overrun distance of the elevator is within a safety range;
s3: detecting whether the deviation between the center of the buffer and the lift car and the deviation between the center of the buffer and the center of a collision plate of a counterweight are within a safety range; the specific mode comprises the following steps:
s31: detecting whether the deviation of the center of the buffer and the car exceeds 25 mm;
s32: detecting whether the deviation between the center of the buffer and the center of a collision plate of the counterweight device exceeds 20 mm;
s4: carrying out static load test on the elevator; the static load test is used for carrying out a rated load test on the elevator for a plurality of times and detecting the safety and reliability of elevator components;
s5: determining the balance coefficient of the elevator by using a current method, and adjusting the counterweight of the elevator to enable the balance coefficient of the elevator to be 45% -50%;
s6: the method comprises the following steps of carrying out over-rated load capacity on an elevator, carrying out power-on operation on the elevator, starting and braking the elevator for a plurality of times within a full travel range, testing whether the elevator is started, braked, operated and stopped and whether a traction machine works normally, and specifically comprises the following steps:
s61: carrying out 120% of over-rated load capacity on the elevator and ensuring that the power-on continuity rate of the elevator is 50%;
s62: starting and braking the elevator 40 times in the full travel range respectively;
s63: whether the elevator is started, braked, run and stopped and whether the traction machine works normally are tested.
Furthermore, the limiting clamping plate is of an inward concave structure.
Furthermore, the auxiliary mounting equipment comprises a limiting clamping plate and a limiting block, the lower end of the limiting block is fixedly connected with the upper end of the limiting clamping plate through a bolt, and a limiting rod with a hollow structure inside is arranged on the limiting block;
one side of the limiting block is fixedly connected with one end of the baffle through a bolt, and the other end of the baffle is fixedly connected with one end of the connecting plate through a bolt;
fixing plates with through hole structures are arranged on two sides of the limiting rod, and a connecting rod and a fixing rod penetrate through two sides of each fixing plate; the limiting block is characterized in that a connecting plate is arranged on one side of the limiting block, baffle plates with L-shaped shapes are arranged at two ends of the connecting plate, a fixing bottom plate with an I-shaped shape is arranged at the bottom of the connecting plate, a plurality of groups of fixing bottom plates are arranged, and a main board is arranged on the fixing bottom plate.
Furthermore, both sides of the limiting rod are of through hole structures, and the inner diameters of the through holes on both sides of the limiting rod are larger than the outer diameters of the fixing rod and the connecting rod;
furthermore, the connecting rod is internally provided with a thread structure, and the thread inside the connecting rod is fixedly connected with a fixed rod with one side provided with the thread structure through threads;
furthermore, the lower end of the fixed bottom plate is fixedly connected with the upper end of the limiting clamping plate through bolts, the upper end of the fixed bottom plate is fixedly connected with the lower end of the main plate with the center in a through hole shape through bolts, and two groups of fixed bottom plates are arranged;
further, the specific detection method in step S1 is as follows:
s11: checking whether the overtravel distance of the upper limit switch and the lower limit switch is 10mm-40mm by using a inching button control mode under the condition that the elevator is in slow car running;
s12: observing whether an extreme limit switch is active before the car or counterweight contacts the buffer; and whether the action state is maintained during the time that the buffer is compressed;
s13: and checking whether the overtravel distance of the upper limit switch and the lower limit switch is between 110mm and 250mm by using a jog button control mode under the condition that the elevator is in slow car running.
Further, the specific detection method in step S2 is as follows:
s21: detecting whether the over-travel distance of the spring buffer is 200-350 mm;
s22: detecting whether the overtravel distance of the hydraulic buffer is 150mm-400 mm.
Further, the specific steps of the static load test are as follows:
s41: carrying out 50% constant load test on an elevator for 10 minutes, and detecting the safety reliability of a steel wire rope of the elevator and components of the elevator;
s42: carrying out 100% constant load test on an elevator for 10 minutes, and detecting the safety reliability of a steel wire rope of the elevator and components of the elevator;
s43: an elevator was tested for 10 minutes for 150% excess load capacity and the safety reliability of the steel wire ropes of the elevator and the components of the elevator were tested.
The invention has the beneficial effects that:
(1) the elevator wire and the elevator are fixed together through the auxiliary installation equipment in the elevator installation process, the limiting block with a through hole structure inside is arranged inside the auxiliary installation equipment, and the limiting rod with a hollow structure inside is clamped inside the limiting block, so that the limiting block at the bottom can well play a role in fixing the elevator wire when the elevator wire enters the limiting rod; the problem that the connection between the wire and the elevator is troublesome due to the fact that the elevator wire is too long is solved;
(2) after the elevator is installed, the elevator is safer and more reliable to use after being installed by arranging multiple safe operation detection methods for elevator installation.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic view of the construction of an auxiliary installation apparatus in an operating method for facilitating safe installation of an elevator according to the present invention;
fig. 2 is a schematic flow diagram of a safety run detection method for elevator installation according to the present invention.
In the figure: 1. a limiting clamping plate; 2. a limiting block; 3. a limiting rod; 4. a fixing plate; 5. a connecting rod; 6. fixing the rod; 7. a main board; 8. fixing the bottom plate; 9. a connecting plate; 10. and a baffle plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-2, an operating method for facilitating the safe installation of an elevator comprises securing an elevator wire to the elevator by an auxiliary installation device during the installation of the elevator; the auxiliary mounting equipment comprises a limiting clamping plate 1 and a limiting block 2;
the lower end of the limiting block 2 is fixedly connected with the upper end of a limiting clamping plate 1 with an inward concave structure through a bolt, the limiting clamping plate 1 with the inward concave structure can be well fixed with the top of an elevator, so that the limiting block 2 can lift the elevator through the limiting clamping plate 1, a limiting rod 3 with a hollow structure inside is arranged on the limiting block 2, one side of the limiting block 2 is fixedly connected with one end of a baffle plate 10 through a bolt, the other end of the baffle plate 10 is fixedly connected with one end of a connecting plate 9 through a bolt, and the structure can enable the baffle plate 10 to well fix the connecting plate 9 inside when the baffle plate 10 is fixed with the limiting block 2 through a bolt, so that the connecting plate 9 can play a role of supporting the limiting blocks 2 on two sides;
the fixing rod structure comprises a limiting rod 3, fixing rods 6 and connecting rods 5, wherein the fixing plates 4 with through hole structures inside are arranged on two sides of the limiting rod 3, the through hole structures on two sides of the limiting rod 3 are through hole structures, the inner diameters of the through holes on two sides of the limiting rod 3 are larger than the outer diameters of the fixing rods 6 and the connecting rods 5, the fixing rods 6 and the connecting rods 5 can be firmly fixed in the through holes inside the limiting rod 3 by the limiting rod 3 through the structure, the connecting rods 5 and the fixing rods 6 penetrate through the two sides of the fixing plates 4 respectively, the connecting rods 5 are internally provided with thread structures, threads inside the connecting rods 5 are fixedly connected with the fixing rods 6 with thread structures on one side through threads, and the connecting;
the limiting block 2 is provided with a connecting plate 9 on one side, two ends of the connecting plate 9 are provided with L-shaped baffles 10, the bottom of the connecting plate 9 is provided with an I-shaped fixed bottom plate 8, the fixed bottom plate 8 is provided with a plurality of groups, the fixed bottom plate 8 is provided with a main plate 7, the lower end of the fixed bottom plate 8 is fixedly connected with the upper end of the limiting clamping plate 1 through bolts, the upper end of the fixed bottom plate 8 is fixedly connected with the lower end of the main plate 7 with a through hole in the center through bolts, and the fixed bottom plate 8 is provided with two groups, so that the fixed bottom plate 8 can well play a role of supporting the main plate 7 at the top, and when the main plate 7 is under pressure, the fixed bottom plate 8 can well play a;
the method comprises the following steps of detecting the operation of the elevator after the elevator is installed:
the method comprises the following steps: detecting whether the actions of an upper limit switch, a lower limit switch, an upper limit switch and a lower limit switch of the elevator are correct or not; the specific mode comprises the following steps:
s1: checking whether the overtravel distance of the upper limit switch and the lower limit switch is 10mm-40mm by using a inching button control mode under the condition that the elevator is in slow car running;
s2: observing whether an extreme limit switch is active before the car or counterweight contacts the buffer; and whether the action state is maintained during the time that the buffer is compressed;
s3: checking whether the overtravel distance of the upper limit switch and the lower limit switch is 110mm-250mm by using a jog button control mode under the condition that the elevator is in slow car running;
step two: detecting whether the buffer overrun distance of the elevator is within a safety range; the specific mode comprises the following steps:
SS 1: detecting whether the over-travel distance of the spring buffer is 200-350 mm;
SS 2: detecting whether the overtravel distance of the hydraulic buffer is 150mm-400 mm;
step three: detecting whether the deviation between the center of the buffer and the lift car and the deviation between the center of the buffer and the center of a collision plate of a counterweight are within a safety range; the specific mode comprises the following steps:
SSS 1: detecting whether the deviation of the center of the buffer and the car exceeds 25 mm;
SSS 2: detecting whether the deviation between the center of the buffer and the center of a collision plate of the counterweight device exceeds 20 mm;
step four: carrying out static load test on the elevator; the static load test is used for carrying out a rated load test on the elevator for a plurality of times and detecting the safety and reliability of elevator components; the static load test comprises the following specific steps:
x1: carrying out 50% constant load test on an elevator for 10 minutes, and detecting the safety reliability of a steel wire rope of the elevator and components of the elevator;
x2: carrying out 100% constant load test on an elevator for 10 minutes, and detecting the safety reliability of a steel wire rope of the elevator and components of the elevator;
x3: carrying out 150% over-rated load test on an elevator for 10 minutes, and detecting the safety reliability of a steel wire rope of the elevator and components of the elevator;
step five: determining the balance coefficient of the elevator by using a current method, and adjusting the counterweight of the elevator to enable the balance coefficient of the elevator to be 45% -50%;
step six: the method comprises the following steps of carrying out over-rated load capacity on an elevator, carrying out power-on operation on the elevator, starting and braking the elevator for a plurality of times within a full travel range, testing whether the elevator is started, braked, operated and stopped and whether a traction machine works normally, and specifically comprises the following steps:
XX 1: carrying out 120% of over-rated load capacity on the elevator and ensuring that the power-on continuity rate of the elevator is 50%;
XX 2: starting and braking the elevator 40 times in the full travel range respectively;
XX 3: whether the elevator is started, braked, run and stopped and whether the traction machine works normally are tested.
The working principle of the invention is as follows: the elevator wire and the elevator are fixed together through the auxiliary installation equipment in the elevator installation process, so that the problem that the connection between the wire and the elevator is troublesome due to the overlong elevator wire is solved;
when the auxiliary installation equipment is used, firstly, the limiting clamping plate 1 is fixed on the elevator, after the top of the elevator is fixed with the limiting clamping plate 1, the limiting rod 3 is directly inserted into the limiting block 2, when the limiting rod 3 is completely inserted into the limiting block 2 with the groove structure, then the connecting rod 5 with the thread structure inside is directly inserted into the fixing plate 4 from the left side of the fixing plate 4 with the through hole structure inside, then the fixing rod 6 with the thread structure outside is rotated, so that the connecting rod 5 with the thread structure inside can be fixed together under the action of external force, thus the limiting rod 3 can be firmly fixed in the limiting block 2 under the action of the connecting rod 5 and the fixing rod 6, because the through hole structure inside the limiting rod 3, the connecting rod 5 and the fixing rod 6 can respectively enter into the through hole inside the limiting rod 3 through the fixing plate 4, therefore, the limiting rod 3 can be firmly fixed inside the limiting block 2, when the elevator main part passes through the inside of the main board 7 with a through hole structure, the fixing bottom plate 8 fixed at the bottom end of the main board 7 and in an I-shaped structure can effectively disperse external force, when the limiting blocks 2 on two sides of the elevator are under pressure, the pressure on two sides can be effectively and uniformly dispersed through the baffle plate 10 with an L-shaped structure and the connecting plate 9 fixed on the inner side of the limiting block 2, so that the connecting plate 9 can well play a role of supporting the inner side of the limiting block 2, the limiting block 2 cannot be influenced by the pressure to cause the condition that the elevator cannot be normally installed, and a series of work is completed; the installation process is safer;
after the elevator installation is completed, the elevator operation is detected: detecting whether the actions of an upper limit switch, a lower limit switch, an upper limit switch and a lower limit switch of the elevator are correct or not; detecting whether the buffer overrun distance of the elevator is within a safety range; detecting whether the deviation between the center of the buffer and the lift car and the deviation between the center of the buffer and the center of a collision plate of a counterweight are within a safety range; carrying out static load test on the elevator; determining the balance coefficient of the elevator by using a current method, and adjusting the counterweight of the elevator to enable the balance coefficient of the elevator to be 45% -50%; carrying out over-rated load capacity on the elevator, carrying out power-on operation on the elevator, starting and braking the elevator for a plurality of times within the full travel range, and testing whether the elevator is started, braked, operated and stopped and whether a traction machine works normally; the elevator installation safety operation detection method is used for ensuring that the elevator is safer and more reliable after being installed.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
Claims (9)
1. An operating method for facilitating safe installation of an elevator, comprising the steps of:
the method comprises the following steps: fixing the elevator wire and the elevator through auxiliary installation equipment in the elevator installation process;
firstly, fixing a limiting clamping plate (1) on an elevator, after the top of the elevator is fixed with the limiting clamping plate (1), directly inserting a limiting rod (3) into a limiting block (2), when the limiting rod (3) is completely inserted into the limiting block (2) with a groove structure, then directly inserting a connecting rod (5) with a threaded structure into a fixing plate (4) with a through hole structure from the left side of the fixing plate (4), and then rotating a fixing rod (6) with a threaded structure, so that the connecting rod (5) and the fixing rod (6) can be fixed together with the connecting rod (5) with a threaded structure from the inside under the action of external force, and the connecting rod (5) and the fixing rod (6) can respectively enter into the through hole in the limiting rod (3) through the fixing plate (4), so that the limiting rod (3) can be firmly fixed inside the limiting block (2);
step two: the method for detecting the operation of the elevator after the elevator is installed comprises the following steps:
s1: detecting whether the actions of an upper limit switch, a lower limit switch, an upper limit switch and a lower limit switch of the elevator are correct or not;
s2: detecting whether the buffer overrun distance of the elevator is within a safety range;
s3: detecting whether the deviation between the center of the buffer and the lift car and the deviation between the center of the buffer and the center of a collision plate of a counterweight are within a safety range; the specific mode comprises the following steps:
s31: detecting whether the deviation of the center of the buffer and the car exceeds 25 mm;
s32: detecting whether the deviation between the center of the buffer and the center of a collision plate of the counterweight device exceeds 20 mm;
s4: carrying out static load test on the elevator; the static load test is used for carrying out a rated load test on the elevator for a plurality of times and detecting the safety and reliability of elevator components;
s5: determining the balance coefficient of the elevator by using a current method, and adjusting the counterweight of the elevator to enable the balance coefficient of the elevator to be 45% -50%;
s6: the method comprises the following steps of carrying out over-rated load capacity on an elevator, carrying out power-on operation on the elevator, starting and braking the elevator for a plurality of times within a full travel range, testing whether the elevator is started, braked, operated and stopped and whether a traction machine works normally, and specifically comprises the following steps:
s61: carrying out 120% of over-rated load capacity on the elevator and ensuring that the power-on continuity rate of the elevator is 50%;
s62: starting and braking the elevator 40 times in the full travel range respectively;
s63: whether the elevator is started, braked, run and stopped and whether the traction machine works normally are tested.
2. An operating method for facilitating safe installation of an elevator according to claim 1, characterized in that the limiting clamp (1) is of concave shape.
3. The operating method convenient for safe installation of the elevator according to claim 1, wherein the auxiliary installation equipment comprises a limiting clamping plate (1) and a limiting block (2), the lower end of the limiting block (2) is fixedly connected with the upper end of the limiting clamping plate (1) through a bolt, and a limiting rod (3) with a hollow structure inside is arranged on the limiting block (2);
one side of the limiting block (2) is fixedly connected with one end of a baffle (10) through a bolt, and the other end of the baffle (10) is fixedly connected with one end of a connecting plate (9) through a bolt;
fixing plates (4) with through hole structures inside are arranged on two sides of the limiting rod (3), and a connecting rod (5) and a fixing rod (6) penetrate through two sides of each fixing plate (4) respectively; stopper (2) one side is equipped with connecting plate (9), connecting plate (9) both ends are equipped with baffle (10) that the appearance is the L type, connecting plate (9) bottom is equipped with fixed baseplate (8) that the appearance is the I shape, fixed baseplate (8) are equipped with the multiunit, be equipped with mainboard (7) on fixed baseplate (8).
4. The operating method for facilitating safe installation of an elevator according to claim 1, wherein the two sides of the limiting rod (3) are provided with through hole structures, and the inner diameters of the through holes on the two sides of the limiting rod (3) are larger than the outer diameters of the fixing rod (6) and the connecting rod (5).
5. An operating method for facilitating the safe installation of an elevator according to claim 1, characterized in that the connecting rod (5) is internally threaded and its internal thread is fixedly connected with a fixing rod (6) having a threaded structure at one side by means of a thread.
6. The operating method convenient for the safe installation of the elevator is characterized in that the lower ends of the fixed bottom plates (8) are fixedly connected with the upper ends of the limiting clamping plates (1) through bolts, the upper ends of the fixed bottom plates (8) are fixedly connected with the lower ends of the main plates (7) with through holes at the centers through bolts, and two groups of the fixed bottom plates (8) are arranged.
7. The operating method for facilitating the safe installation of the elevator according to claim 1, wherein the specific detection method in the step S1 is as follows:
s11: checking whether the overtravel distance of the upper limit switch and the lower limit switch is 10mm-40mm by using a inching button control mode under the condition that the elevator is in slow car running;
s12: observing whether an extreme limit switch is active before the car or counterweight contacts the buffer; and whether the action state is maintained during the time that the buffer is compressed;
s13: and checking whether the overtravel distance of the upper limit switch and the lower limit switch is between 110mm and 250mm by using a jog button control mode under the condition that the elevator is in slow car running.
8. The operating method for facilitating the safe installation of the elevator according to claim 1, wherein the specific detection method in the step S2 is as follows:
s21: detecting whether the over-travel distance of the spring buffer is 200-350 mm;
s22: detecting whether the overtravel distance of the hydraulic buffer is 150mm-400 mm.
9. The operating method for facilitating the safe installation of an elevator according to claim 1, wherein the static load test comprises the following specific steps:
s41: carrying out 50% constant load test on an elevator for 10 minutes, and detecting the safety reliability of a steel wire rope of the elevator and components of the elevator;
s42: carrying out 100% constant load test on an elevator for 10 minutes, and detecting the safety reliability of a steel wire rope of the elevator and components of the elevator;
s43: an elevator was tested for 10 minutes for 150% excess load capacity and the safety reliability of the steel wire ropes of the elevator and the components of the elevator were tested.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11787660B2 (en) | 2021-05-28 | 2023-10-17 | Otis Elevator Company | Brake monitoring circuitry, elevator system and brake monitoring method |
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Denomination of invention: An operation method convenient for safe installation of elevator Effective date of registration: 20211222 Granted publication date: 20210810 Pledgee: The development of small and medium-sized enterprises financing Company Limited by Guarantee Jieshou City Pledgor: Anhui XUNLIDA Elevator Co.,Ltd. Registration number: Y2021980015856 |
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Address after: 236500 North Ring Road, Xicheng Circular Industrial Park, Jieshou City, Fuyang City, Anhui Province Patentee after: Xunlida Elevator Co.,Ltd. Address before: 236500 North Ring Road, Xicheng Circular Industrial Park, Jieshou City, Fuyang City, Anhui Province Patentee before: Anhui XUNLIDA Elevator Co.,Ltd. |
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