Absolute position sensing device for elevator

Abstract

The invention relates to the technical field of elevator equipment, and discloses an elevator absolute position sensing device which comprises a hoistway and an elevator car, a position sensing mechanism is arranged on the hoistway and the elevator car, the position sensing mechanism comprises a sensing part arranged on the elevator car and a sensed part arranged on the hoistway, a first cleaning mechanism is arranged on the sensing part, and a second cleaning mechanism is arranged on the sensed part. A second cleaning mechanism is arranged on the sensed part; the induction part comprises a first fixing block, the first fixing block is fixedly connected to the top of the lift car, a first U-shaped inserting block is connected to the back face of the first fixing block in an inserted mode, and a first connecting plate is fixedly connected to the back face of the first U-shaped inserting block. The mounting plate I, the magneto-dependent sensor, the mounting plate II and the induction magnetic plate can be quickly mounted and dismounted, the operation is simple, a large number of peripheral parts do not need to be dismounted, and the maintenance difficulty and the time cost are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of elevator equipment, and particularly to an elevator absolute position sensing device. Background Art

[0002] As a key device for vertical transportation, the safety and reliability of elevator operation are of crucial importance. The absolute position sensing device is one of the core components of the elevator control system. It can accurately detect the position information of the elevator car in the hoistway, providing key data support for the precise operation, leveling stop, and safety protection of the elevator.

[0003] Traditional elevator absolute position sensing devices usually adopt complex installation structures, such as being tightly connected to other elevator components with a large number of bolts, etc. When performing maintenance or replacement, a large number of surrounding components need to be removed, and the operation process is cumbersome, time-consuming, and laborious. Therefore, an elevator absolute position sensing device is proposed to solve the above-mentioned problems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an elevator absolute position sensing device for the deficiencies in the above-mentioned prior art.

[0005] To solve the above technical problems, the technical solution adopted by the present invention is: an elevator absolute position sensing device, including a hoistway and a car. A first central processing unit is arranged on the car, a second central processing unit is arranged on the hoistway, a position sensing mechanism is arranged between the hoistway and the car. The position sensing mechanism includes a sensing part arranged on the car and a sensed part arranged on the hoistway. A first cleaning mechanism is arranged on the sensing part, and a second cleaning mechanism is arranged on the sensed part;

[0006] The sensing part includes: a first fixing block, the first fixing block is fixedly connected to the top of the car. The back of the first fixing block is inserted with a first U-shaped plug. The back of the first U-shaped plug is fixedly connected to a first connecting plate. The left side of the first connecting plate is fixedly connected to a first mounting plate. A magnetic sensor is connected to the left side of the first mounting plate. A slide plate is slidably connected to the right side of the first mounting plate. A first spring is fixedly connected between the slide plate and the first connecting plate. The back of the slide plate is fixedly connected to a second U-shaped plug, and the rear end of the second U-shaped plug is inserted into the first fixing block. A first handle is fixedly connected to the front of the slide plate;

[0007] The sensed part includes: a second fixed block, the second fixed block is fixedly connected to the left inner wall of the hoistway, two insertion rods are inserted into the top of the second fixed block, the top ends of the two insertion rods are fixedly connected to a second connecting plate, and the bottom of the second connecting plate is in contact with the top of the second fixed block. A second mounting plate is fixedly connected to the right side of the second connecting plate. A sensing magnetic plate is connected to the right side of the second mounting plate and is symmetrically arranged with the magnetic sensor. A sliding rod is fixedly connected to the bottom of the second connecting plate. A limiting plate is slidably connected to the outer wall of the sliding rod. A second spring is fixedly connected between the limiting plate and the second connecting plate. A second handle is fixedly connected to the top of the second mounting plate.

[0008] Preferably, two first jacks are provided on the front surface of the first fixed block. The first U-shaped insertion block and the second U-shaped insertion block are respectively inserted into the first jacks, and the opposite ends of the first U-shaped insertion block and the second U-shaped insertion block are in contact.

[0009] Preferably, a chute is provided on the right side of the first mounting plate. The sliding plate is arranged in an inverted "L" shape, and the right side of the sliding plate is slidably connected in the chute.

[0010] Preferably, two second jacks are provided on the top of the second fixed block. The two insertion rods are respectively inserted into the second jacks.

[0011] Preferably, the top of the limiting plate abuts against the bottom of the second fixed block. Two limiting holes are provided on the top of the limiting plate. The bottom ends of the two insertion rods are respectively inserted into the limiting holes.

[0012] Preferably, the first cleaning mechanism includes: a first electric hydraulic cylinder and a first PLC controller. The first electric hydraulic cylinder is connected to the left side of the first mounting plate through a bracket. The first electric hydraulic cylinder is self-locking. A first mounting block is fixedly connected to the piston end of the first electric hydraulic cylinder. A first sponge block is bonded to the back of the first mounting block. The first sponge block is triangularly arranged, and the inclined surface is close to the magnetic sensor. The first PLC controller is connected to the left side of the first mounting plate. The first PLC controller is in signal connection with the first electric hydraulic cylinder.

[0013] Preferably, the second cleaning mechanism includes: a second electric hydraulic cylinder and a second PLC controller. The second electric hydraulic cylinder is connected to the right side of the second mounting plate through a bracket. The second electric hydraulic cylinder is self-locking. A second mounting block is fixedly connected to the piston end of the second electric hydraulic cylinder. A second sponge block is bonded to the bottom of the second mounting block. The lower part of the second sponge block is triangularly arranged, and the inclined surface is close to the sensing magnetic plate. The second PLC controller is connected to the right side of the second mounting plate. The second PLC controller is in signal connection with the second electric hydraulic cylinder.

[0014] Preferably, an infrared transmitter is connected to the left inner wall of the shaft and is close to the bottom of the shaft, and an infrared receiver is connected to the lower left side of the car and is adapted to the position of the infrared transmitter.

[0015] The present invention adopts the above technical solution to bring the following beneficial effects:

[0016] 1. The elevator absolute position sensing device can make the slide plate slide in the slide groove of the mounting plate 1 by pulling the handle 1, so that the slide plate stretches the spring 1 and drives the second U-shaped plug block to move and pull it out of the fixed block 1, and at the same time, the mounting plate 1 is moved backward, the mounting plate 1 drives the connecting plate 1 to move, and the connecting plate 1 drives the first U-shaped plug block to move and pull it out of the fixed block 1, so that the mounting plate 1 and the magnetic sensor are separated from the car, and the magnetic sensor is quickly installed and removed. By lifting the handle 2 upwards, the handle 2 drives the mounting plate 2 to move, the mounting plate 2 drives the connecting plate 2 to move, and the connecting plate 2 drives the plug rod to move and separate from the fixed block 2 and the limit plate, and at the same time, the connecting plate 2 moves the stretch spring 2. After the plug rod 2 is separated from the fixed block 2, the mounting plate 2 is moved to the right to remove the mounting plate 2 and the induction magnetic plate from the shaft. The operation is simple, and there is no need to remove a large number of peripheral components, which reduces the maintenance difficulty and time cost.

[0017] 2. The elevator absolute position sensing device, the electric hydraulic cylinder one, under the control of the PLC controller one, pushes the mounting block one to make the sponge block one close to the magnetic sensor. At the same time, the sponge block one is triangular in shape, and the inclined surface moves on the surface of the magnetic sensor and squeezes the magnetic sensor, which can clean the dust and debris on its surface, avoid impurities affecting the magnetic sensor's reception of the induction magnetic plate signal, and ensure the accuracy of position detection.

[0018] 3. The elevator absolute position sensing device, the electric hydraulic cylinder 2, under the control of the PLC controller 2, pushes the mounting block 2, driving the inclined surface of the sponge block 2 to move on the surface of the induction magnetic plate and squeeze the induction magnetic plate, thereby cleaning the dust and debris on the surface of the induction magnetic plate, ensuring that the induction magnetic plate can normally send signals to the magnetic sensor, ensuring the sensing accuracy, and improving the reliability of the elevator operation.

[0019] 4. The elevator absolute position sensing device, when the car is close to the bottom of the shaft, the infrared transmitter transmits a signal and the infrared receiver receives the signal. This signal can be used as an auxiliary basis for judging the position of the car, and complements the detection results of the magnetic sensor and the induction magnetic plate to improve the accuracy of the position detection of the car in the shaft and ensure that the elevator stops at the same level more accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front cross-sectional view of the present invention;

[0021] Figure 2 It is a right side cross-sectional view of the sensing part of the present invention;

[0022] Figure 3 It is the left view of the car of the present invention;

[0023] Figure 4 It is the right sectional view of the hoistway of the present invention;

[0024] Figure 5 It is the front sectional view of the sensed part of the present invention;

[0025] Figure 6 is Figure 5 the enlarged view of part A of;

[0026] Figure 7 It is the working flow chart of the magnetic sensor of the present invention;

[0027] Figure 8 It is the working flow chart of the infrared receiver of the present invention;

[0028] Figure 9 It is the block diagram of the core system for elevator position detection of the present invention.

[0029] In the figure: 1, hoistway; 2, car; 3, position sensing mechanism; 4, sensing part; 41, first fixing block; 42, first U-shaped insertion block; 43, first connecting plate; 44, first mounting plate; 45, magnetic sensor; 46, sliding plate; 47, first spring; 48, second U-shaped insertion block; 49, first handle; 5, sensed part; 51, second fixing block; 52, insertion rod; 53, second connecting plate; 54, second mounting plate; 55, induction magnetic plate; 56, sliding rod; 57, limiting plate; 58, second spring; 59, second handle; 6, first cleaning mechanism; 61, first electric hydraulic cylinder; 62, first mounting block; 63, first sponge block; 64, first PLC controller; 7, second cleaning mechanism; 71, second electric hydraulic cylinder; 72, second mounting block; 73, second sponge block; 74, second PLC controller; 8, infrared transmitter; 9, infrared receiver. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention.

[0032] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "set" should be understood in a broad sense. For example, they can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "several" is two or more unless otherwise specifically defined.

[0034] Please refer to Figure 1-7, an embodiment of the present invention is: an elevator absolute position sensing device, including a hoistway 1 and a car 2. A first central processing unit is provided on the car 2, and a second central processing unit is provided on the hoistway 1. A position sensing mechanism 3 is provided between the hoistway 1 and the car 2. The position sensing mechanism 3 includes a sensing part 4 provided on the car 2 and a sensed part 5 provided on the hoistway 1. A first cleaning mechanism 6 is provided on the sensing part 4, and a second cleaning mechanism 7 is provided on the sensed part 5; The sensing part 4 includes: a fixing block one 41, the fixing block one 41 is fixedly connected to the top of the car 2. The back of the fixing block one 41 is inserted with a first U-shaped insert block 42. The back of the first U-shaped insert block 42 is fixedly connected to a connecting plate one 43. The left side of the connecting plate one 43 is fixedly connected to a mounting plate one 44. A magnetic sensor 45 is connected to the left side of the mounting plate one 44. A sliding plate 46 is slidably connected to the right side of the mounting plate one 44. A chute is opened on the right side of the mounting plate one 44. The sliding plate 46 is arranged in an inverted "L" shape. The right side of the sliding plate 46 is slidably connected in the chute. A first spring 47 is fixedly connected between the sliding plate 46 and the connecting plate one 43. The back of the sliding plate 46 is fixedly connected to a second U-shaped insert block 48, and the rear end of the second U-shaped insert block 48 is inserted into the fixing block one 41. Two jacks one are opened on the front of the fixing block one 41. The first U-shaped insert block 42 and the second U-shaped insert block 48 are respectively inserted into the jacks one, and the opposite ends of the first U-shaped insert block 42 and the second U-shaped insert block 48 are in contact. A handle one 49 is fixedly connected to the front of the sliding plate 46. By pulling the handle one 49, the sliding plate 46 can slide in the chute of the mounting plate one 44, so that the sliding plate 46 stretches the first spring 47 and drives the second U-shaped insert block 48 to move out of the fixing block one, and at the same time moves the mounting plate one 44 backward. The mounting plate one 44 drives the connecting plate one 43 to move, and the connecting plate one 43 drives the first U-shaped insert block 42 to move out of the fixing block one, so as to separate the mounting plate one 44, the magnetic sensor 45 from the car 2, realizing the quick installation and disassembly of the magnetic sensor 45; The sensed part 5 includes: a fixing block two 51, the fixing block two 51 is fixedly connected to the left inner wall of the hoistway 1. Two inserting rods 52 are inserted into the top of the fixing block two 51. Two jacks two are opened on the top of the fixing block two 51. The two inserting rods 52 are respectively inserted into the jacks two. The tops of the two inserting rods 52 are fixedly connected to a connecting plate two 53, and the bottom of the connecting plate two 53 is in contact with the top of the fixing block two 51. The right side of the connecting plate two 53 is fixedly connected to a mounting plate two 54. An induction magnetic plate 55 is connected to the right side of the mounting plate two 54, and is symmetrically arranged with the magnetic sensor 45. A sliding rod 56 is fixedly connected to the bottom of the connecting plate two 53. A limiting plate 57 is slidably connected to the outer wall of the sliding rod 56. A second spring 58 is fixedly connected between the limiting plate 57 and the connecting plate two 53. The top of the limiting plate 57 abuts against the bottom of the fixing block two 51. Two limiting holes are opened on the top of the limiting plate 57. The bottom ends of the two inserting rods 52 are respectively inserted into the limiting holes. A handle two 59 is fixedly connected to the top of the mounting plate two 54;The number of the sensed parts 5 is the same as the number of floors. By lifting the second handle 59 upwards, the second handle 59 drives the second mounting plate 54 to move. The second mounting plate 54 drives the second connecting plate 53 to move. The second connecting plate 53 drives the plug rod 52 to move out of the second fixing block 51 and the limiting plate 57. At the same time, the second connecting plate 53 moves to stretch the second spring 58. After the plug rod 52 moves out of the second fixing block 51, moving the second mounting plate 54 to the right can remove the second mounting plate 54 and the induction magnetic plate 55 from the hoistway 1. The operation is simple, without the need to remove a large number of surrounding components, reducing the maintenance difficulty and time cost.

[0035] Working principle: When the car 2 moves in the hoistway 1, it drives the magnetic sensor 45 to move to the position of the induction magnetic plate 55. The magnetic sensor 45 receives the signal of the induction magnetic plate 55 and transmits the signal to the first central processing unit. The first central processing unit processes and analyzes the signal and displays the floor number. When it is necessary to repair the magnetic sensor 45 and the induction magnetic plate 55, by pulling the first handle 49, the sliding plate 46 can slide in the chute of the first mounting plate 44, so that the sliding plate 46 stretches the first spring 47 and drives the second U-shaped plug 48 to move out of the first fixing block 41. At the same time, move the first mounting plate 44 backward. The first mounting plate 44 drives the first connecting plate 43 to move. The first connecting plate 43 drives the first U-shaped plug 42 to move out of the first fixing block 41, so as to separate the first mounting plate 44 and the magnetic sensor 45 from the car 2, realizing the quick installation and disassembly of the magnetic sensor 45. By lifting the second handle 59 upwards, the second handle 59 drives the second mounting plate 54 to move. The second mounting plate 54 drives the second connecting plate 53 to move. The second connecting plate 53 drives the plug rod 52 to move out of the second fixing block 51 and the limiting plate 57. At the same time, the second connecting plate 53 moves to stretch the second spring 58. After the plug rod 52 moves out of the second fixing block 51, moving the second mounting plate 54 to the right can remove the second mounting plate 54 and the induction magnetic plate 55 from the hoistway 1. The operation is simple, without the need to remove a large number of surrounding components, reducing the maintenance difficulty and time cost.

[0036] Please refer to Figure 1-7, on the basis of the above embodiments, in another embodiment of the present invention, the first cleaning mechanism 6 includes: an electric hydraulic cylinder 61 and a PLC controller 64. The electric hydraulic cylinder 61 is connected to the left side of the mounting plate 44 through a bracket. The electric hydraulic cylinder 61 is a self-locking type. The piston end of the electric hydraulic cylinder 61 is fixedly connected with a mounting block 62. A sponge block 63 is adhesively attached to the back of the mounting block 62. The sponge block 63 is arranged in a triangular shape, and the inclined surface is close to the magnetic sensor 45. The PLC controller 64 is connected to the left side of the mounting plate 44. The PLC controller 64 is in signal connection with the electric hydraulic cylinder 61. Under the control of the PLC controller 64, the electric hydraulic cylinder 61 pushes the mounting block 62 to make the sponge block 63 close to the magnetic sensor 45. At the same time, the sponge block 63 is triangular, and the inclined surface moves on the surface of the magnetic sensor 45 and squeezes the magnetic sensor 45, so as to clean the dust, sundries, etc. on its surface, avoid impurities from affecting the reception of the signal of the induction magnetic plate 55 by the magnetic sensor 45, and ensure the accuracy of position detection; The second cleaning mechanism 7 includes: an electric hydraulic cylinder 71 and a PLC controller 74. The electric hydraulic cylinder 71 is connected to the right side of the mounting plate 54 through a bracket. The electric hydraulic cylinder 71 is a self-locking type. The piston end of the electric hydraulic cylinder 71 is fixedly connected with a mounting block 72. A sponge block 73 is adhesively attached to the bottom of the mounting block 72. The lower part of the sponge block 73 is arranged in a triangular shape, and the inclined surface is close to the induction magnetic plate 55. The PLC controller 74 is connected to the right side of the mounting plate 54. The PLC controller 74 is in signal connection with the electric hydraulic cylinder 71. Under the control of the PLC controller 74, the electric hydraulic cylinder 71 pushes the mounting block 72 to drive the inclined surface of the sponge block 73 to move on the surface of the induction magnetic plate 55 and squeeze the induction magnetic plate 55, so as to clean the dust, sundries, etc. on the surface of the induction magnetic plate 55, ensure that the induction magnetic plate 55 can normally send signals to the magnetic sensor 45, ensure the sensing accuracy, and improve the reliability of elevator operation.

[0037] Working principle: Under the control of the PLC controller 64, the electric hydraulic cylinder 61 pushes the mounting block 62 to make the sponge block 63 close to the magnetic sensor 45. At the same time, the sponge block 63 is triangular, and the inclined surface moves on the surface of the magnetic sensor 45 and squeezes the magnetic sensor 45, so as to clean the dust, sundries, etc. on its surface, avoid impurities from affecting the reception of the signal of the induction magnetic plate 55 by the magnetic sensor 45. Under the control of the PLC controller 74, the electric hydraulic cylinder 71 pushes the mounting block 72 to drive the inclined surface of the sponge block 73 to move on the surface of the induction magnetic plate 55 and squeeze the induction magnetic plate 55, so as to clean the dust, sundries, etc. on the surface of the induction magnetic plate 55, ensure that the induction magnetic plate 55 can normally send signals to the magnetic sensor 45, and ensure the sensing accuracy.

[0038] Please refer to Figure 1-7, on the basis of the above embodiments, in another embodiment of the present invention, an infrared transmitter 8 is connected to the left inner wall of the hoistway 1 and is close to the bottom of the hoistway 1. An infrared receiver 9 is connected to the lower left side of the car 2 and is adapted to the position of the infrared transmitter 8. When the car 2 approaches the bottom of the hoistway 1, the infrared transmitter 8 emits a signal, and the infrared receiver 9 receives the signal. This signal can be used as an auxiliary basis for judging the position of the car 2, complementing the detection results of the magnetic sensor 45 and the induction magnetic plate 55, improving the accuracy of detecting the position of the car 2 in the hoistway 1, and ensuring that the elevator stops at the leveling position more precisely.

[0039] Working principle: When the car 2 approaches the bottom of the hoistway 1, the infrared transmitter 8 emits a signal, and the infrared receiver 9 receives the signal. This signal can be used as an auxiliary basis for judging the position of the car 2, complementing the detection results of the magnetic sensor 45 and the induction magnetic plate 55. The infrared receiver 9 transmits the signal to the first central processing unit. If there are deviations in the detection results of the magnetic sensor 45 and the induction magnetic plate 55, the first central processing unit calibrates the detection results. At the same time, after receiving the transmitted signal, the first central processing unit sends an instruction to the second central processing unit, and the first central processing unit controls the PLC controller one 64 and the second central processing unit controls the PLC controller two 74 to start working.

[0040] In the present invention, the induction part 4 on the car 2 and the induction part 5 on the hoistway 1 work together. The magnetic sensor 45 in the induction part 4 and the induction magnetic plate 55 in the induction part 5 cooperate with each other to detect the position of the car 2 and transmit the signal to the first central processing unit. The infrared transmitter 8 and the infrared receiver 9 assist in the detection when the car 2 approaches the bottom of the hoistway 1. After the first central processing unit processes the signal, it displays the floor number, and at the same time judges the accuracy of the position detection result. If the result is incorrect, it is corrected to ensure the normal operation of the elevator.

[0041] It should be noted that the magnetic sensor 45, the induction magnetic plate 55, the first electric hydraulic cylinder 61, the second electric hydraulic cylinder 71, the PLC controller one 64, the PLC controller two 74, the infrared transmitter 8, and the infrared receiver 9 in the above embodiments are all common devices in the prior art. The models and the like adopted can be customized according to actual use requirements. Moreover, the power supply interfaces of the electrical equipment in the present invention are connected to the power supply system through switches (not shown in the figure) and wires (not shown in the figure) to realize their control. The circuits and controls involved are all in the prior art and are well-known to those skilled in the current field, so no detailed description is given here.

[0042] The present invention provides an elevator absolute position sensing device. There are many methods and ways to specifically implement this technical solution. The above description is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention. Each component not clearly defined in this embodiment can be implemented by using the prior art.

Claims

1. An elevator absolute position sensor device, comprising a hoistway (1) and a car (2), characterized in that: The hoistway (1) and the car (2) are provided with a position sensing mechanism (3), the position sensing mechanism (3) comprising a sensing part (4) provided on the car (2) and a sensed part (5) provided on the hoistway (1), the sensing part (4) being provided with a first cleaning mechanism (6), and the sensed part (5) being provided with a second cleaning mechanism (7); The sensing part (4) comprises: a fixed block (41), the fixed block (41) is fixedly connected to the top of the car (2), a first U-shaped plug-in block (42) is plugged into the back of the fixed block (41), a connecting plate (43) is fixedly connected to the back of the first U-shaped plug-in block (42), a mounting plate (44) is fixedly connected to the left side of the connecting plate (43), a magnetic sensor (45) is connected to the left side of the mounting plate (44), a slide plate (46) is slidably connected to the right side of the mounting plate (44), a spring (47) is fixedly connected between the slide plate (46) and the connecting plate (43), a second U-shaped plug-in block (48) is fixedly connected to the back of the slide plate (46), and the rear end of the second U-shaped plug-in block (48) is plugged into the fixed block (41), and a handle (49) is fixedly connected to the front of the slide plate (46); The sensed part (5) comprises: a second fixing block (51), the second fixing block (51) is fixedly connected to the left inner wall of the well (1), two plug rods (52) are inserted at the top of the second fixing block (51), the tops of the two plug rods (52) are fixedly connected to a second connecting plate (53), and the bottom of the second connecting plate (53) is in contact with the top of the second fixing block (51), the right side of the second connecting plate (53) is fixedly connected to a second mounting plate (54), the right side of the second mounting plate (54) is connected to an induction magnetic plate (55), and is symmetrically arranged with the magnetic sensor (45), the bottom of the second connecting plate (53) is fixedly connected to a sliding rod (56), the outer wall of the sliding rod (56) is slidably connected to a limiting plate (57), a second spring (58) is fixedly connected between the limiting plate (57) and the second connecting plate (53), and the top of the second mounting plate (54) is fixedly connected to a second handle (59).

2. The elevator absolute position sensor device according to claim 1, characterized in that: The front side of the fixing block 1 (41) is provided with two insertion holes 1, the first U-shaped insertion block (42) and the second U-shaped insertion block (48) are respectively inserted into the insertion holes 1, and the opposite ends of the first U-shaped insertion block (42) and the second U-shaped insertion block (48) are in close contact.

3. The elevator absolute position sensor device according to claim 1, characterized in that: A sliding groove is provided on the right side of the mounting plate 1 (44), and the sliding plate (46) is arranged in an inverted "L" shape, with the right side of the sliding plate (46) being slidably connected in the sliding groove.

4. The elevator absolute position sensor device according to claim 1, characterized in that: The top of the second fixing block (51) is provided with two second insertion holes, and the two insertion rods (52) are respectively inserted into the second insertion holes.

5. The elevator absolute position sensor device according to claim 1, characterized in that: The top of the limiting plate (57) is in contact with the bottom of the second fixing block (51), and two limiting holes are provided on the top of the limiting plate (57), and the bottom ends of the two insertion rods (52) are respectively inserted into the limiting holes.

6. The elevator absolute position sensor device according to claim 1, characterized in that: The first cleaning mechanism (6) comprises: an electric hydraulic cylinder (61) and a PLC controller (64). The electric hydraulic cylinder (61) is connected to the left side of a mounting plate (44) through a bracket. The piston end of the electric hydraulic cylinder (61) is fixedly connected to a mounting block (62). The back of the mounting block (62) is bonded with a sponge block (63). The sponge block (63) is arranged in a triangular shape, and the inclined surface is close to the magnetic sensor (45). The PLC controller (64) is connected to the left side of the mounting plate (44). The PLC controller (64) is connected to the electric hydraulic cylinder (61) by signal.

7. The elevator absolute position sensor device according to claim 1, characterized in that: The second cleaning mechanism (7) comprises: an electric hydraulic cylinder (71) and a PLC controller (74). The electric hydraulic cylinder (71) is connected to the right side of the mounting plate (54) through a bracket. The piston end of the electric hydraulic cylinder (71) is fixedly connected to a mounting block (72). The bottom of the mounting block (72) is bonded with a sponge block (73). The lower part of the sponge block (73) is arranged in a triangular shape, and the inclined surface is close to the induction magnetic plate (55). The PLC controller (74) is connected to the right side of the mounting plate (54). The PLC controller (74) is connected to the signal of the electric hydraulic cylinder (71).

8. The elevator absolute position sensor device according to claim 1, characterized in that: An infrared transmitter (8) is connected to the left inner wall of the shaft (1) and is close to the bottom of the shaft (1). An infrared receiver (9) is connected to the lower left side of the car (2) and is adapted to the position of the infrared transmitter (8).

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