Elevator light curtain system and assembly process

Abstract

The present invention discloses an elevator light curtain system, which is characterized in that it comprises an elevator light curtain, including a first component and a second component, the first component being provided with a transmitting component, the second component being used for receiving a light receiving component of the transmitting component light source, the transmitting component and the light receiving component being longitudinally slidably arranged in a corresponding main body shell, the transmitting component and the light receiving component being provided with a longitudinal driving component to drive the transmitting component and the light receiving component to move longitudinally synchronously, the present invention enables the trajectory of a single reciprocating motion interval to better cover the entire interval, so that blocked obstacles can be discovered in a timely manner, facilitating the elevator door machine to respond in a timely manner, and having a particularly good effect on slender components.

Description

Technical Field

[0001] The present invention relates to the field of elevator safety, and in particular to an elevator light curtain system and an assembly process. Background Art

[0002] Traditional elevator light curtains are light-based elevator door safety devices suitable for passenger and freight elevators, protecting passengers. They consist of four main components: an infrared transmitter and receiver mounted on either side of the elevator car door, a power supply box mounted on the car roof, and a dedicated flexible cable. Under the control of the MCU, the transmitter and receiver diodes activate sequentially, continuously scanning the car door area from top to bottom, forming a dense infrared protective light curtain. If any beam of light is blocked, the control system immediately outputs a door-opening signal, causing the car door to stop closing and reverse open. The elevator door will not close normally until passengers or obstructions have left the warning area, thus achieving safety protection and preventing accidents involving people being trapped in the elevator.

[0003] During operation, traditional elevator light curtains use more light emitting components to increase detection density. At the same time, some products have developed cross-type light curtains to further improve their detection density. However, during operation, there are still many gaps, which cannot be detected in time, or cannot be sensed within a shorter interval during operation. As a result, the elevator cannot obtain a timely response, causing a series of elevator operation failures and safety accidents. Summary of the Invention

[0004] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art and to provide an elevator light curtain system and an assembly process with a rational structural design.

[0005] The technical solution adopted by the present invention to solve the above problems is: an elevator light curtain system, including an elevator light curtain, including a first component and a second component, the first component is provided with a transmitting component, the second component is used to receive the light source of the transmitting component, the transmitting component and the light receiving component are arranged in a longitudinally sliding manner in the corresponding main body shell, and the transmitting component and the light receiving component are provided with a longitudinal driving component to drive the transmitting component and the light receiving component to move synchronously longitudinally.

[0006] Further: a corrugated plate is provided in the elevator threshold groove, the corrugated plate undulates at regular intervals, and the undulations of the corrugated plate are symmetrically arranged from the center to both sides, the driving component includes a sliding seat, a roller member, a first linkage member and a second linkage member, the sliding seat and the main body shell are longitudinally slidingly arranged, the roller member is rotatably arranged on the connecting rod of the sliding seat, the roller member is arranged to fit the end surface of the corrugated plate, the top of the sliding seat is provided with a first linkage member, the emitting component and the light receiving component are fixed with a second linkage member, the first linkage member and the second linkage member are cooperatively connected, and the elevator threshold is provided with a guide groove adapted to the sliding of the connecting rod.

[0007] Furthermore: distance sensors are provided at the bottom of the emitting component and the light receiving component. The positions of the distance sensors correspond to the end faces of the corrugated plates via the guide grooves. The two groups of distance sensors collect distance signals synchronously.

[0008] Further: the connecting rod includes a first rod and a second rod, the first rod is inserted into the threaded hole of the second rod through threaded cooperation, the threaded hole is a through hole connected up and down, the end of the first rod in the threaded hole is provided with a hexagon socket, the end of the second rod is fixed in the groove body of the sliding seat and fixed by threads, and the hexagon socket wrench can be inserted into the threaded hole from the upper side to adjust the relative position of the first rod and the second rod, and the first rod is rotatably connected to the wheel seat of the roller member.

[0009] Furthermore: the trough body is laterally provided with a sliding block, the sliding block is fixed to the first rod, and adjustment bolts for adjusting the position of the slider in the trough body are provided on both sides of the trough body.

[0010] Furthermore: the corrugated plate is used to adapt to the guide wheel groove of the limiting roller member, and the guide wheel groove is arranged along the undulations of the corrugated plate.

[0011] Furthermore: the main housing is arranged on the mounting housing in a transverse sliding manner, and the main housing is connected to the connecting block of the mounting housing through a number of linear elastic telescopic parts. The wheel groove is provided with a limit block near the middle of the door sill, so that after the driving roller contacts the limit block, the elevator doors on both sides continue to run, and the main housings installed on the two sets of elevator doors are both retracted to both sides, and the two sets of elevator doors are closed. The front and rear sides of the first component and the second component are also provided with image acquisition components for image acquisition inside and outside the car.

[0012] Furthermore: the first component and the second component are detected by using a parallel infrared beam light curtain or a cross-net light curtain.

[0013] An assembly process based on the above-mentioned elevator light curtain system, wherein the main housing includes a main housing and a cover plate, the cover plate is opened outward relative to the car, the first component and the second component are contacted and connected through a forming plate, and limiting claws are provided on both sides of the forming plate. At this time, the linear elastic telescopic component is in a compressed state, the limiting claws are fixed to the forming plate by threads, and the limiting claws are fixed to the mounting housing by bolts. A spirit level is provided on the forming plate, and a spacer is provided on the forming plate, which is provided between the first component and the second component, and the spacer is fixed to the forming plate by bolts. The forming plate is adapted to be connected to the first component and the second component to form a factory prefabricated component.

[0014] Furthermore: in the factory prefabricated parts, the main shell and the cover plate are not pre-installed and are set separately.

[0015] Compared with the prior art, the present invention has the following advantages and effects:

[0016] (1) In the structure of the present invention, during operation, the trajectory of a single reciprocating motion interval can better cover the entire interval, so that blocked obstacles can be discovered in a timely manner, facilitating the elevator door machine to respond in a timely manner, and having a good effect especially on slender components;

[0017] (2) Since the roller parts in the threshold are pre-installed, during the installation process, the connecting rod is pulled to fix the first linkage part and the second linkage part. At this time, the roller parts may not contact the end surface of the corrugated plate, resulting in ineffective lifting work. Therefore, the adjustable connecting rod can be adjusted quickly to solve this problem.

[0018] (3) Due to the existence of assembly errors, the roller parts connecting the first component and the second component cannot correspond to the position of the corrugated plate, which may cause their movements to be asynchronous. When the threshold is exceeded, normal work is affected. Therefore, the position of the roller parts can be corrected by adjusting the bolt parts.

[0019] (4) The design of this structure is to provide a partition plate between the first component and the second component, so that the first component and the second component are not directly in contact and squeezed after the door is closed, which effectively prevents the first component and the second component from being impacted during the door closing process and affecting their service life. At the same time, the installation process of this structure is simple, and one or two people can perform the installation and positioning operations, which saves time and effort, effectively improves efficiency, and ensures that the first component and the second component are installed symmetrically on both sides of the car door, avoiding the installer's inaccurate control of their elastic stroke and the situation where the installation positions of the first component and the second component do not correspond. There is no need to perform complex measurement and docking, and the relative position of the first component and the second component is well level, which facilitates normal operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of an elevator light curtain system according to an embodiment of the present invention.

[0021] Figure 2 It is a schematic diagram of the installation structure of the first component of an embodiment of the present invention.

[0022] Figure 3 It is a schematic structural diagram of a driving component according to an embodiment of the present invention.

[0023] Figure 4 2 is a schematic structural diagram of a connecting rod according to an embodiment of the present invention.

[0024] Figure 5 Schematic diagram of the acquisition field of view of the image sensor according to an embodiment of the present invention.

[0025] Figure 6 It is a structural schematic diagram of the roller arrangement according to an embodiment of the present invention.

[0026] Figure 7 It is a schematic diagram of the connection structure between the shaping plate and the light curtain device according to an embodiment of the present invention.

[0027] Figure 8 It is a structural diagram of the assembly of the main shell and the cover plate according to an embodiment of the present invention.

[0028] Figure numbers: first component 1, second component 2, emitting component 11, light receiving component 21, main body housing 3, corrugated plate 4, driving component 5, sliding seat 51, roller component 52, first linkage component 53, second linkage component 54, ranging sensor 6, connecting rod 55, groove body 56, first rod member 551, second rod member 552, through hole 553, hexagon socket 554, wheel seat 555, sliding block 556, adjusting bolt member 557, guide wheel groove 41, mounting housing 7, linear elastic telescopic component 71, limit block 43, image acquisition component 8, main housing 31, cover plate 32, shaping plate 72, limit claw 91, spirit level 92, partition plate 93, car door 10, threshold 20, floor door 30. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are intended to explain the present invention but the present invention is not limited to the following examples.

[0030] See also Figures 1-6In the embodiment, an elevator light curtain system includes an elevator light curtain, including a first component 1 and a second component 2. The first component 1 is provided with a transmitting component 11, and the second component 2 is used to receive a light receiving component 21 of the transmitting component 11. The transmitting component 11 and the light receiving component 21 are longitudinally slidably arranged in the corresponding main body shell 3. The transmitting component 11 and the light receiving component 21 are provided with a longitudinal driving component 5 to drive the transmitting component 11 and the light receiving component 21 to move longitudinally synchronously. The transmitting component 11 emits multiple groups of light beams which are received by the light receiving component 21 arranged on the other side. If any group of light beams is blocked, it is determined that there is an obstacle, and the elevator control system immediately outputs a door opening signal, and the car door stops closing and reverses to open until the passenger or obstacle leaves the warning area. The elevator door can then be closed normally.

[0031] This embodiment relates to an elevator light curtain. Since traditional light curtains still have many gap spaces during operation, they cannot be detected in time, or cannot sense in a shorter interval during operation, resulting in the elevator being unable to obtain a timely response, causing a series of elevator operation failures and safety accidents. This solution uses the driving component 5 to make the emitting component 11 and the light receiving component synchronously move up and down in a smaller interval in a regular and cyclical manner during the closing operation of the elevator door. Therefore, during the operation, the trajectory of a single reciprocating motion interval can better cover the entire interval, so that blocked obstacles can be discovered in time, which facilitates the elevator door machine to respond in time, especially for slender components. This design enables the light curtain to comprehensively scan the entire space in a smaller interval, so that obstacles can be sensed and responded in time during the operation of the car door, especially for slender components, which can be detected in time, thereby ensuring the safety of the elevator operation.

[0032] The present embodiment specifically relates to the structure of the driving component 5, which utilizes the door machine to synchronously drive the door machine switch action, so that the driving component drives the emitting component and the light receiving component to be able to perform regular cyclic ups and downs in a smaller range. Specifically, a corrugated plate 4 is provided in the groove of the elevator door sill 20, and the corrugated plate 4 fluctuates at regular intervals. The driving component 5 includes a sliding seat 51, a roller member 52, a first linkage member 53 and a second linkage member 54. The sliding seat 51 is longitudinally slidably arranged with the main body housing 3, and the roller member 52 is rotatably arranged on the sliding seat 51. The roller member 52 is arranged to fit the end surface of the corrugated plate 4. The top of the sliding seat 51 is provided with a first linkage member 53, and the emitting component 11 and the light receiving component 21 are fixed with a second linkage member 54. The first linkage member 53 and the second linkage member 54 are fixed with the first linkage member 53. The two linkage members 54 are connected in a coordinated manner. In this structure, the roller member 52 moves under the drive of the elevator door on the corrugated plate 4 through hard contact. Therefore, along the floating of the corrugated plate 4, the sliding seat 51 slides up and down. Since the first linkage member 53 is in contact with the second linkage member 54, this involves two groups of elevator doors driven by the door machine, which move synchronously. Therefore, the driving component 5 drives the emitting component 11 and the light receiving component 21 to move up and down synchronously, so that the several emitting heads of the emitting component 11 correspond synchronously with the sensing head of the first light receiving component, so that during the movement, the signal can be received at all times, and feedback can be given in time when a group is blocked. This structure does not require additional power components, and can realize the synchronous cyclic up and down movement of the emitting component and the light receiving component, which makes it relatively low in cost and easy to promote.

[0033] In this embodiment, a distance sensor 6 is provided at the bottom of the transmitting component 11 and the light receiving component 21. The distance sensor 6 is positioned corresponding to the end surface of the corrugated plate 4 via a guide groove. In this embodiment, the elevator car door is driven by a door machine. Generally, a door machine uses a synchronous belt to enable two sets of door machines to open and close synchronously and symmetrically. Therefore, the transmitting component 11 and the light receiving component 21 are provided on the elevator door, and two sets of distance sensors are provided at the same time to align with the end surface of the corrugated plate to monitor the distance signal synchronously.

[0034] The first aspect: It is used to monitor whether the heights of the transmitting component 11 and the light receiving component 21 correspond at the same time. When the light signal of the transmitting component cannot be received by the light receiving component, one situation may be that the transmitting component 11 and the light receiving component 21 themselves fail, resulting in the signal not being received. Another situation may be that the transmitting component 11 and the light receiving component 21 do not correspond in position during the movement, resulting in the light signal of the transmitting component not being received by the light receiving component. Therefore, if the distance signal measured by the distance measuring sensor is regular and consistent, then the door machine action is abnormal, then it is very likely that the transmitting component 11 and the light receiving component 21 fail. The fault of the component 21 itself, when the distance signals measured by the two sets of distance measuring sensors are inconsistent (the distance signals are inconsistent during the synchronization period, but the two sets of distances collected show regular movement), it is because the positions of the left and right drive components 5 on the corrugated plate 4 are not synchronized, resulting in the position of the transmitting component 11 and the light receiving component 21 cannot be synchronized. Therefore, by setting up two sets of distance measuring sensors, the judgment based on the characteristics of the above two sets can quickly find the cause of the door opening failure of the door machine and perform maintenance, thereby improving maintenance efficiency. Specifically, during the maintenance process, the position of the roller component on the corrugated plate can be adjusted to solve the above problem;

[0035] On the other hand, when the distance measured by the distance measuring sensors on both sides is not synchronized and fluctuates irregularly during the operation trajectory, after adjusting the driving components and completing the setting of their working positions, and then working again, if the above situation still exists, it means that there is uncoordinated movement of the two door machines. The reason may be that there is a fault in the door machine. The general reason may be that the belt has reached the end of its service life, causing the belt to loosen or the fixings to loosen, causing the door machine to drive the car door to fluctuate back and forth, which is uncoordinated and out of sync. In this case, the door machine needs to be inspected and the damaged parts replaced. Therefore, this structural setting can not only effectively detect the normal functional status of this product, but also, combined with the characteristics of this structure, detect the function of the door machine, promptly discover the door machine operation failure and hidden dangers, and promptly inspect and eliminate the hidden dangers.

[0036] As can be seen from the above, this product is based on the synchronous movement of the car door and the door machine. By setting up two sets of sensors, it can make a quick judgment on the cause of abnormal movement of the door machine, thereby quickly solving the fault problem.

[0037] The connecting rod 55 includes a first rod 551 and a second rod 552. The first rod 551 is threadedly inserted into the threaded hole of the second rod 552. The threaded hole is a through hole 553 connected to the upper and lower parts. The end of the first rod 551 in the threaded hole is provided with a hexagon socket 554. The end of the second rod 552 is fixed in the groove 56 of the sliding seat 51 and fixed by threads. The hexagon socket 554 wrench can be inserted into the threaded hole from the upper side to adjust the relative position of the first rod 551 and the second rod 552. The first rod 551 is rotatably connected to the wheel seat 555 of the roller member 52. Since there may be errors in the height of the elevator door machine and the light curtain from the door sill 20 plane during the actual installation process, the present structure can be adjusted by the hexagonal wrench from the sliding seat 51 to adjust the length of the first rod 551 and the second rod 552, so that the roller member 52 can not only fit well with the corrugated plate 4, but also can be adjusted. The first linkage member 53 on the upper side can be fixed to the second linkage member 54, especially during the installation process, since the roller member 52 in the door sill 20 is pre-installed, during the installation process, the connecting rod 55 is pulled to fix the first linkage member 53 and the second linkage member 54. At this time, the roller member may not be in contact with the end face of the corrugated plate 4, resulting in an inability to perform effective lifting work. Therefore, this structure can be adjusted more quickly to solve this problem, wherein the trough body 56 is laterally provided with a sliding block 556, and the sliding block 556 is fixed to the first rod member 551. Adjustment bolt members 557 for adjusting the position of the slider in the trough body 56 are provided on both sides of the trough body 56. Due to the existence of assembly errors, the roller member 52 connected to the first component 1 and the second component 2 can no longer correspond to the position of the corrugated plate 4, which may cause its movement to be asynchronous. When the threshold is exceeded, it affects normal work. Therefore, by adjusting the adjusting bolt member 557, the position of the roller member 52 can be corrected.

[0038] In this embodiment, the main engine housing 3 is arranged on the mounting housing 7 in a transverse sliding manner. The main engine housing 3 is connected to the connecting block of the mounting housing 7 through a plurality of linear elastic telescopic members 71. The wheel groove is provided with a limit block 43 near the middle of the door sill 20, so that after the driving roller contacts the limit block 43, the elevator doors on both sides continue to run, and the main engine housings 3 installed on the two sets of elevator doors are both retracted to both sides, and the two sets of elevator doors are closed. The front and rear sides of the first component 1 and the second component 2 are further provided with image acquisition components 8 for image acquisition inside and outside the car. In this structure, in the door open state, Due to the action of the linear elastic telescopic member 71 (spring telescopic rod), the first component 1 and the second component 2 protrude from the car door 10. Therefore, the image acquisition component 8 (at the same time, technicians can also add other sensor acquisition components outside and inside the elevator to enrich the elevator functions) can obtain a good acquisition field of view in the open door state and is not easily blocked by the car door 10 or the floor door 30. At the same time, after closing the door, under the action of the limit block 43, as the car door 10 continues to move driven by the door machine, the first component 1 and the second component 2 do not continue to move, and the car door 10 is normally closed.

[0039] In this embodiment, a conventional parallel infrared beam light curtain is used for detection, and a cross-net light curtain can also be used for detection.

[0040] Example 2:

[0041] See also Figures 1-8 , with respect to the specific structure of Example 1, this embodiment provides an assembly process for an elevator light curtain system, which helps the structure to be installed more conveniently and effectively, thereby better realizing the function of this product and improving installation efficiency. The main body housing 3 includes a main housing 31 and a cover plate. The cover plate is opened outward relative to the car. The first component 1 and the second component 2 are contacted and connected by a shaping plate 72. Limit claws 91 are provided on both sides of the shaping plate 72. At this time, the linear elastic telescopic member 71 is in a compressed state. The limit claws 91 are fixed to the shaping plate 72 by threads, and the limit claws 91 are fixed to the mounting housing 7 by bolts. A level 92 is provided on the shaping plate 72. A spacer 93 is provided on the shaping plate 72, which is arranged between the first component 1 and the second component 2. The spacer 93 is fixed to the shaping plate 72 by bolts. The connection between the shaping plate 72 and the first component 1 and the second component 2 constitutes a factory prefabricated component, wherein in this factory prefabricated component, the main housing and the cover plate are not pre-assembled and are set separately.

[0042] At this time, the prefabricated parts of this product are attached to the car door 10, and the position of the partition plate 93 is aligned with the contact line of the two groups of car doors to ensure that the spirit level 92 is level. The opening position of the car door 10 is determined by the installation hole position of the shell 7. After marking, the hole is opened and the product is fixed to the door machine by bolts. After the factory prefabricated parts are completely fixed, the roller part 52 set on the door sill 20 is dragged to the position of the limit block 43, and then the corresponding connecting rod 55 is fixed to the sliding block 556 of the sliding seat 51 (the specific installation and adjustment are as described in Example 1). After the installation is completed, the shaping plate 72 is removed by removing the bolts. After the debugging is completed, the cover plate 32 is adapted to the main shell 31. If this installation process does not adopt the method of this prefabricated part, it needs to be manually pressed, and the operation is relatively complicated, so that the roller part 52 and the sliding seat 51 are in contact. The connection and adaptation are carried out in a row, so that the first component 1 and the second component 2 cannot obtain a symmetrical position. Through the design of this structure, a partition plate 93 is provided between the first component 1 and the second component 2. Therefore, the first component 1 and the second component 2 are not directly contacted and squeezed after the door is closed, effectively preventing the impact on the first component 1 and the second component 2 during the door closing process, which affects their service life. At the same time, the installation process of this structure is simple, and one or two people can install and position it, which saves time and effort, effectively improves efficiency, and ensures that the first component 1 and the second component 2 are installed symmetrically on both sides of the car door 10, avoiding the installer's inaccurate control of its elastic stroke and the situation where the installation positions of the first component 1 and the second component 2 do not correspond. There is no need to perform complicated measurement and docking, and the relative position of the first component 1 and the second component 2 is well level, which is convenient for normal operation.

[0043] The above contents described in this specification are merely examples of the present invention. Those skilled in the art may make various modifications, additions, or substitutions to the described embodiments, without departing from the contents of this specification or exceeding the scope defined by the claims, and such modifications, additions, or substitutions may be made to the described embodiments. Such modifications, additions, or substitutions may be made by persons skilled in the art. Such modifications, additions, or substitutions may be made to the described embodiments without departing from the contents of this specification or exceeding the scope defined by the claims, and such modifications shall fall within the scope of protection of the present invention.

Claims

1. An elevator light curtain system, characterized in that: The device comprises a first component and a second component, wherein the first component is provided with a transmitting component, and the second component is used for receiving a light receiving component of the transmitting component light source; the transmitting component and the light receiving component are longitudinally slidably arranged in the corresponding main body housing, and the transmitting component and the light receiving component are provided with a longitudinal driving component to drive the transmitting component and the light receiving component to move longitudinally synchronously; A corrugated plate is provided in the elevator threshold groove. The corrugated plate is undulating at regular intervals, and the undulations of the corrugated plate are symmetrically arranged from the center to both sides. The driving component includes a sliding seat, a roller member, a first linkage member, and a second linkage member. The sliding seat and the main body housing are longitudinally slidable. The roller member is rotatably arranged on the connecting rod of the sliding seat. The roller member is arranged to fit the end surface of the corrugated plate. The top of the sliding seat is provided with a first linkage member. The emitting component and the light receiving component are fixed with a second linkage member. The first linkage member and the second linkage member are cooperatively connected. The elevator threshold is provided with a guide groove adapted for sliding of the connecting rod. The bottom of the emitting component and the light receiving component are provided with distance sensors, and the position of the distance sensors corresponds to the end surface of the corrugated plate through the guide groove. The two sets of distance sensors collect distance signals synchronously. When the distance signals measured by the distance measuring sensors are regular and consistent, the door machine operation is abnormal, and it is determined that the emitting component and the light receiving component are faulty; when the distance signals measured by the two sets of distance measuring sensors are inconsistent, but the two sets of distances collected show regular movement, it is determined that the positions of the left and right drive components on the corrugated plate are not synchronized, resulting in the inability to synchronize the positions of the emitting component and the light receiving component; when the distances measured by the distance measuring sensors on both sides are not synchronized and fluctuate irregularly, and the working position of the drive component still remains after adjustment, it is determined that there is uncoordinated movement of the two sets of door machines.

2. An elevator light curtain system according to claim 1, characterized in that: The connecting rod includes a first rod and a second rod, the first rod is inserted into the threaded hole of the second rod through threaded cooperation, the threaded hole is a through hole connected up and down, the end of the first rod in the threaded hole is provided with a hexagon socket, the end of the second rod is fixed in the groove body of the sliding seat and fixed by thread, and the hexagon socket wrench can be inserted into the threaded hole from the upper side to adjust the relative position of the first rod and the second rod, and the first rod is rotatably connected to the wheel seat of the roller member.

3. An elevator light curtain system according to claim 2, characterized in that: The trough body is laterally provided with a sliding block, the sliding block is fixed to the first rod, and adjustment bolts for adjusting the position of the sliding block in the trough body are provided on both sides of the trough body.

4. An elevator light curtain system according to claim 3, characterized in that: The corrugated plate is used to adapt to the guide wheel groove of the limiting roller component, and the guide wheel groove is arranged along the undulations of the corrugated plate.

5. The elevator light curtain system according to claim 4, characterized in that: The main engine housing is arranged on the mounting housing in a transverse sliding manner. The main engine housing is connected to the connecting block of the mounting housing through a number of linear elastic telescopic parts. The wheel groove is provided with a limit block near the middle of the door sill, so that after the driving roller contacts the limit block, the elevator doors on both sides continue to run, and the main engine housings installed on the two sets of elevator doors are both retracted to both sides, and the two sets of elevator doors are closed. The front and rear sides of the first component and the second component are also provided with image acquisition components for image acquisition inside and outside the car.

6. The elevator light curtain system according to claim 5, characterized in that: The first component and the second component are detected by using a parallel infrared beam light curtain or a cross-net light curtain.

7. An assembly process for the elevator light curtain system according to claim 6, characterized in that: The main body shell includes a main shell and a cover plate, the cover plate is opened outward relative to the car, the first component and the second component are contacted and connected through a forming plate, and limiting claws are provided on both sides of the forming plate. At this time, the linear elastic telescopic component is in a compressed state, the limiting claws are fixed to the forming plate by threads, and the limiting claws are fixed to the mounting shell by bolts. A spirit level is provided on the forming plate, and a spacer is provided on the forming plate, which is provided between the first component and the second component. The spacer is fixed to the forming plate by bolts, and the forming plate is adapted to be connected to the first component and the second component to form a factory prefabricated part.

8. An assembly process for the elevator light curtain system according to claim 7, characterized in that: The main shell and the cover plate of the factory prefabricated parts are not pre-assembled but are arranged separately.

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