Elevator light curtain assembly and elevator

Abstract

The application relates to an elevator light curtain assembly and an elevator. The elevator has two oppositely arranged door bodies. The elevator light curtain assembly comprises a light shielding piece and two light curtain strips. The two light curtain strips are respectively arranged at one end of the two door bodies close to each other. Along the width direction x of the door body, the sides of the two light curtain strips facing each other form a sensing area. Along the thickness direction y of the door body, one side of the light curtain strip is used for connecting the door body, and the other side is used for connecting the light shielding piece, so that the light shielding piece is located at a position outside the sensing area. When the door body is closed, the two door bodies have a door closing gap. The projection of the light shielding piece along the thickness direction y of the door body can cover the door closing gap. The elevator light curtain assembly and the elevator provided by the application can effectively solve the light leakage problem when the elevator door is closed.

Description

Technical Field

[0001] This application relates to the technical field, and in particular to an elevator light curtain assembly and an elevator. Background Technology

[0002] Elevator light curtains, as a core safety protection device for elevator doors, typically consist of two light curtain strips, each installed on opposite ends of the door frame. For example, patent CN220393164U discloses a method where staggered connecting blocks are fixed to a first mounting bracket and a second mounting bracket. Each connecting block has spring grooves and at least three springs embedded within it. Protective plates are fixed to the tops of the springs, and rubber blocks are added to the protective plates. When the elevator door closes, the protective plates contact the door first, causing the springs to contract and buffer the impact. The rubber blocks further enhance the buffering effect and prevent collision noise, thereby protecting the first mounting bracket, the second mounting bracket, the receiver bracket, and the transmitter bracket.

[0003] To avoid the risk of impact during elevator door closing, a gap must be left between the two elevator doors when they are closed, during installation of the elevator doors and elevator light curtain components. However, this gap allows external light to enter the elevator car, causing light leakage. This problem not only disrupts the visual integrity of the elevator car interior and reduces its aesthetics, but also allows passengers to directly experience external light interference during their ride, leading to a sense of insecurity and affecting the overall riding experience. In the aforementioned patent CN220393164U, the protective plate, spring, rubber block, and other structures are all used to protect the light curtain strip when the elevator doors are closed, but do not address the problem of light leakage when the elevator doors are closed. Utility Model Content

[0004] Therefore, it is necessary to provide an elevator light curtain component and an elevator that can effectively solve the problem of light leakage when the elevator door is closed.

[0005] An elevator light curtain assembly is disclosed. The elevator has two doors arranged opposite each other. The elevator light curtain assembly includes a light-shielding member and two light curtain strips. The two light curtain strips are respectively installed at the ends of the two doors that are close to each other. Along the width direction x of the doors, a sensing area is formed between the sides of the two light curtain strips that face each other. Along the thickness direction y of the doors, one side of the light curtain strip is used to connect to the doors, and the other side is used to connect to the light-shielding member, so that the light-shielding member is located outside the sensing area. When the doors are closed, there is a closing gap between the two doors, and the projection of the light-shielding member along the thickness direction y of the doors can cover the closing gap.

[0006] In one embodiment, the light curtain strip includes a housing for fixedly connecting to the door body, and the housing has a slot; the light-shielding member includes a connected snap-fit ​​part and a light-shielding part, the snap-fit ​​part engaging with the slot, and the light-shielding part extending out of the slot and used to block the closing gap along the thickness direction y of the door body.

[0007] In one embodiment, the card slot has a first opening, and the snap-fit ​​part includes a limiting strip and a connecting strip. The limiting strip is snapped into the card slot, and one end of the connecting strip is connected to the limiting strip, while the other end passes through the first opening and is connected to the light-shielding part.

[0008] In one embodiment, the light-shielding member is elastic, and the housing has two limiting plates. The two limiting plates are spaced apart along the thickness direction y of the door body and surround to form a first opening. The inner wall of each limiting plate includes a first wall and a second wall connected to each other. The first wall extends along the thickness direction y of the door body and cooperates with the end stop of the limiting strip. One end of the second wall is connected to the first wall, and the other end is inclined outward relative to the thickness direction y of the door body towards the first opening. The second wall and the limiting strip are spaced apart and surround to form a buffer space.

[0009] In one embodiment, the second wall is inclined at an angle A relative to the thickness direction y of the door body, and 40°≤A≤50°; and / or, along the thickness direction y of the door body, the extension length of the inner wall of the limiting plate is L, and the extension length of the first wall is L1, 0.45≤L1 / L≤0.55.

[0010] In one embodiment, the elevator light curtain assembly further includes a fastener, the housing has a mounting hole that connects to a slot, and the fastener passes through the mounting hole and connects to the snap-fit ​​portion.

[0011] In one embodiment, the elevator light curtain assembly further includes a baffle, the slots connecting the two ends of the housing along the height direction z of the door body and forming openings at both ends of the housing, and the baffle is detachably connected to the openings.

[0012] In one embodiment, the housing includes a first housing and a second housing, with the first housing connected to the door body and the second housing at both ends along the thickness direction y of the door body, respectively; the first housing has an assembly groove for accommodating a sensor, and a slot is formed in the second housing.

[0013] In one embodiment, the light-shielding member is elastic and configured as a hollow structure; and / or, the light-shielding member is configured as a multi-layered structure.

[0014] In one embodiment, the number of light-shielding elements is configured as one, with one light-shielding element connected to one of the light curtain strips, and the projection of the light-shielding element along the thickness direction y of the door body can cover the closing gap; or, the number of light-shielding elements is configured as two, with each light-shielding element connected to one light curtain strip respectively, and when the door body is closed, the two light-shielding elements abut against each other, and the projection of the two light-shielding elements along the thickness direction y of the door body can cover the closing gap.

[0015] An elevator includes two doors arranged opposite each other and an elevator light curtain assembly as described in any of the above embodiments, wherein two light curtain strips are respectively installed at the ends of the doors that are close to each other.

[0016] Compared to existing technologies, the elevator light curtain assembly and elevator provided in this application solve the light leakage problem by connecting a light-shielding element to the light curtain strip. The projection of the light-shielding element along the door thickness direction (y) completely covers the door closing gap, blocking external light from entering the car through the gap at the source. This eliminates the need to change the original elevator door structure and the safety design of the door closing gap, achieving light shielding while retaining the anti-collision function. It boasts strong compatibility and can be adapted to various existing elevator door installation scenarios. Furthermore, the light-shielding element is directly connected to the light curtain strip, resulting in a high degree of integration. It does not occupy additional installation space in the elevator door and does not affect the normal opening and closing operation of the elevator door. Moreover, since a sensing area is formed between the facing sides of the two light curtain strips along the door width direction (x), and the light-shielding element is located on one side of the light curtain strip along the door thickness direction (y), the installation area of ​​the light-shielding element is outside the sensing area of ​​the two light curtain strips. Therefore, the light-shielding element does not affect the sensing response of the light curtain strip. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the assembly of the elevator light curtain component and the door provided in this application;

[0019] Figure 2 This application provides a cross-sectional view of the assembly of the elevator light curtain assembly with the door in one embodiment;

[0020] Figure 3 for Figure 2 An enlarged view at point A;

[0021] Figure 4 This application provides an assembly diagram of the light curtain strip, light shield, and baffle.

[0022] Figure 5 A cross-sectional view of the assembly of the elevator light curtain assembly with the door body is provided in another embodiment of this application;

[0023] Figure 6 A schematic diagram of a light-shielding element in one embodiment is provided for this application.

[0024] Reference numerals: 100, elevator light curtain assembly; 10, light shield; 11, snap-fit ​​part; 111, limiting strip; 112, connecting strip; 12, light shield; 121, cavity; 20, light curtain strip; 201, sensing area; 21, housing; 210, slot; 211, limiting plate; 213, first opening; 214, first wall; 215, second wall; 216, buffer space; 220, first shell; 221, assembly slot; 2211, second opening; 23, transparent plate; 24, extension plate; 230, second shell; 240, opening; 30, baffle; 40, fastener; 200, door body; 300, closing gap. Detailed Implementation

[0025] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0026] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0030] Please see Figures 1 to 2 This application provides an elevator light curtain assembly 100. The elevator has two doors 200 arranged opposite to each other. The elevator light curtain assembly 100 includes a light shield 10 and two light curtain strips 20. The two light curtain strips 20 are respectively installed at the ends of the two doors 200 that are close to each other. Along the width direction x of the door 200, a sensing area 201 is formed between the sides of the two light curtain strips 20 that face each other. Along the thickness direction y of the door 200, one side of the light curtain strip 20 is used to connect to the door 200, and the other side is used to connect to the light shield 10, so that the light shield 10 is located outside the sensing area 201. When the doors are closed, there is a closing gap 300 between the two doors 200. The projection of the light shield 10 along the thickness direction y of the door 200 can cover the closing gap 300.

[0031] By connecting a light-shielding element 10 to the light curtain strip 20, and ensuring that the projection of the light-shielding element 10 along the thickness direction y of the door body 200 completely covers the closing gap 300, external light is blocked from entering the elevator car through the gap at the source, thus completely solving the light leakage problem. In this way, the original structure of the door body 200 and the safety design of the closing gap 300 are not altered. While retaining the anti-collision function, light shielding is achieved, offering strong compatibility and adaptability to various existing door body 200 installation scenarios. Furthermore, the light-shielding element 10 is directly connected to the light curtain strip 20, resulting in a high degree of integration. It does not occupy additional installation space on the door body 200 and does not affect the normal opening and closing operation of the elevator door. Moreover, since a sensing area 201 is formed between the opposing sides of the two light curtain strips 20 along the width direction x of the door body 200, and the light-shielding element 10 is located on one side of the light curtain strip 20 along the thickness direction y of the door body 200, the installation area of ​​the light-shielding element 10 is outside the sensing area 201 formed by the two light curtain strips 20. In this way, the light-shielding component 10 will not affect the sensing response of the light curtain strip 20.

[0032] It should be noted that the working principle of the two light curtain strips 20 is as follows: one light curtain strip 20 is equipped with a transmitter, and the other light curtain strip 20 is equipped with a receiver. The transmitter emits a signal along the thickness y-axis of the door body 200, and the receiver receives the signal. When an obstruction occurs between the sides of the two light curtain strips 20 that are facing each other, the receiver cannot receive the signal.

[0033] In one embodiment, the light-shielding member 10 is elastic, thus allowing it to deform under pressure, ensuring that the light-shielding part 12 can block the door closing gap 300 and improving the reliability of light blocking. Furthermore, the light-shielding member 10 is configured as a hollow structure. The hollow structure reduces the weight of the light-shielding member 10, lowers the load on the elevator door opening and closing, and saves material costs. Additionally, the hollow structure makes it easier for the light-shielding member 10 to deform in response to external pressure, and also prevents damage from passengers leaning on it when the door is open.

[0034] In one embodiment, such as Figure 6 As shown, the light-shielding element 10 is configured with a multi-layered structure, specifically a scale-like layered structure. This ensures that when a child or other passenger tears the light-shielding element 10, only one piece can be torn off, preventing the entire element from being destroyed. Furthermore, the adhesive strip ages and wears down layer by layer, thus extending the service life of the light-shielding element 10. For example, the light-shielding element 10 can be a hollow adhesive strip.

[0035] In one embodiment, such as Figures 1 to 3 As shown, the light curtain strip 20 includes a housing 21 for fixed connection to the door body 200, and the housing 21 has a slot 210. The light-shielding member 10 includes a connecting snap-fit ​​part 11 and a light-shielding part 12. The snap-fit ​​part 11 engages with the slot 210, and the light-shielding part 12 extends out of the slot 210 and is used to block the closing gap 300 along the thickness direction y of the door body 200. Thus, by setting the snap-fit ​​part 11 and the slot 210, the light-shielding member 10 and the light curtain strip 20 can be quickly assembled, installed conveniently, and connected securely. Furthermore, the light-shielding part 12 extending out of the slot 210 is specifically used to block the closing gap 300. The size and shape of the light-shielding part 12 can be optimized for different elevator needs to ensure accurate light-shielding coverage. Optionally, the cross-section of the light-shielding part 12 is cylindrical, and the light-shielding part 12 has a cavity 121 in the middle.

[0036] Alternatively, in one embodiment, as Figure 4 As shown, the elevator light curtain assembly also includes a fastener 40. The housing 21 has a mounting hole that connects to the slot 210. The fastener 40 passes through the mounting hole and connects to the snap-fit ​​part 11. This adds rigid fixing to the snap-fit ​​connection, further enhancing the connection strength between the light-shielding component 10 and the light curtain strip 20, ensuring the long-term stable operation of the light-shielding component 10. The fastener 40 can be connected using various methods, such as screws or bolts, depending on actual needs.

[0037] Furthermore, the card slot 210 has a first opening 213, and the snap-fit ​​part 11 includes a limiting strip 111 and a connecting strip 112. The limiting strip 111 is snapped into the card slot 210, and one end of the connecting strip 112 is connected to the limiting strip 111, and the other end passes through the first opening 213 and is connected to the light-shielding part 12.

[0038] Specifically, along the thickness direction y of the door body 200, the cross-sectional width of the limiting strip 111 is greater than the cross-sectional width of the connecting strip 112, and the connecting strip 112 is connected to the middle of the limiting strip 111.

[0039] In one embodiment, the light-shielding member 10 is elastic, and the housing 21 has two limiting plates 211. The two limiting plates 211 are spaced apart along the thickness direction y of the door body 200 and surround to form a first opening 213. The inner wall of each limiting plate 211 includes a first wall 214 and a second wall 215 connected to each other. The first wall 214 extends along the thickness direction y of the door body 200 and cooperates with the end stop of the limiting strip 111. One end of the second wall 215 is connected to the first wall 214, and the other end is inclined outward relative to the thickness direction y of the door body 200 toward the first opening 213. The second wall 215 and the limiting strip 111 are spaced apart and surround to form a buffer space 216.

[0040] Understandably, the first wall 214 engages with the end stop of the limiting strip 111 to restrict the displacement of the limiting strip 111 and prevent the limiting strip 111 from dislodging from the slot 210. By setting the second wall 215 and the limiting strip 111 at intervals to form a buffer space 216, when a passenger pulls the light shield 10 out of the first opening 213, the buffer space 216 allows the limiting strip 111 to move a certain amount of displacement towards the outside of the first opening 213 near the connecting strip 112. That is, the buffer space 216 can provide cushioning for the limiting strip 111 when the passenger pulls the light shield 10 out of the first opening 213, thereby helping to reduce the wear of the light shield 10 and extend its service life.

[0041] In one embodiment, the second wall 215 is tilted at an angle A relative to the thickness direction y of the door body 200, and 40°≤A≤50°. It is understood that if A is too large, the limiting plate 211 will fail to limit the limiting strip 111; if A is too small, the buffer space 216 will be too small to provide sufficient buffering for the limiting strip 111. Therefore, by setting 40°≤A≤50°, the limiting effect of the limiting strip 111 is ensured to be sufficient, while reserving enough buffer space 216, achieving a balance between limiting and buffering. For example, the value of A can be 40°, 43°, 45°, 45.5°, 47°, 50°, etc., and can be set according to actual needs.

[0042] In one embodiment, along the thickness direction y of the door body 200, the extension length of the inner wall of the limiting plate 211 is L, and the extension length of the first wall 214 is L1, where 0.45 ≤ L1 / L ≤ 0.55. It is understood that the larger L1 is, the better the limiting effect on the limiting strip 111; however, if L1 is too large, it is difficult to reserve sufficient buffer space 216. Therefore, by setting 0.45 ≤ L1 / L ≤ 0.55, the limiting effect of the limiting strip 111 is ensured, while sufficient buffer space 216 is reserved, achieving a balance between limiting and buffering. For example, the value of L1 / L can be 0.45, 0.46, 0.5, 0.54, 0.55, etc., and can be set according to actual needs.

[0043] Thus, by clearly defining the tilt angle A of the second wall 215 relative to the thickness direction y of the door body 200, and the ratio parameter of L1 to L, the size of the slot 210 can be defined from two dimensions, thereby achieving a balance between limiting and buffering the limiting strip 111.

[0044] Optionally, in one embodiment, the two limiting plates 211 are respectively inclined outward relative to the thickness direction y of the door body 200.

[0045] In one embodiment, such as Figure 1 and Figure 4 As shown, the elevator light curtain assembly 100 also includes a baffle 30. A slot 210 connects to both ends of the housing 21 along the height z direction of the door body 200, forming openings 240 at both ends of the housing 21. The baffle 30 is detachably connected to the openings 240. Thus, the light-shielding member 10 can be inserted into the slot 210 from any opening at either end of the housing 21 along the height z direction of the door body 200. Furthermore, since one end of the second wall 215 is connected to the first wall 214, and the other end is inclined outwards towards the first opening 213 relative to the thickness y direction of the door body 200, the second wall 215 can also provide clearance during the insertion of the light-shielding member 10 from any opening 240 along the height z direction of the door body 200 into the slot 210, facilitating the assembly of the light-shielding member 10. By providing the baffle 30, not only can the light-shielding member 10 be prevented from detaching from the opening 240, but it can also prevent dust and debris from entering the interior of the slot 210. The baffle 30 can be snapped into the opening 240 or connected by screws.

[0046] In one embodiment, such as Figure 5 As shown, housing 21 includes a first housing 220 and a second housing 230. The first housing 220 connects the door body 200 and the second housing 230 at both ends along the thickness direction y of the door body 200, respectively. The first housing 220 has an assembly groove 221 for accommodating a sensor, which refers to a transmitter or receiver. A slot 210 is provided in the second housing 230. In this way, housing 21 has clear functional divisions, facilitating independent processing, assembly, and maintenance of each component.

[0047] Specifically, the assembly slot 221 has a second opening 2211, which is oriented toward the opposite light curtain strip 20, and a transparent plate 23 is installed in the second opening 2211.

[0048] The housing 21 also includes an extension plate 24, one end of which is connected to the first housing 220, and the other end extends along the width direction x of the door body 200 in a direction away from the first housing 220. The extension plate 24 is used to fit the door body 200 and is detachably connected to the door body 200.

[0049] Optionally, in one embodiment, the housing 21 is made of aluminum alloy. The first housing 220, the second housing 230, and the extension plate 24 are integrally formed. Of course, in another embodiment, the first housing 220, the second housing 230, and the extension plate 24 can also be processed separately and then connected together.

[0050] In one embodiment, the number of light-shielding members 10 is configured to be one, and the light-shielding member 10 is connected to one of the light curtain strips 20. The projection of the light-shielding member 10 along the thickness direction y of the door body 200 can cover the closing gap 300. In this way, the light-shielding member 10 can not only block the closing gap 300 to prevent light leakage in the elevator car, but also help prevent the elevator door from pinching hands and reduce elevator accidents.

[0051] In another embodiment, two light-shielding members 10 are configured, each light-shielding member 10 being connected to a light curtain strip 20. When the door 200 is closed, the two light-shielding members 10 abut against each other, and the projections of the two light-shielding members 10 along the thickness direction y of the door 200 can cover the closing gap 300. Specifically, when the door 200 is closed, the light-shielding portions 12 of the two light-shielding members 10 are pressed against each other and undergo elastic deformation to make tight contact. In this way, the two light-shielding members 10 can not only cooperate to block the closing gap 300 to prevent light leakage from the elevator car, but also play a buffering role when the door closes, preventing the light-shielding members 10 from being damaged by collision and reducing closing noise.

[0052] This application also provides an elevator, which includes two doors 200 arranged opposite to each other and an elevator light curtain assembly 100 as described in any of the above embodiments, with two light curtain strips 20 respectively installed at the ends of the doors 200 that are close to each other.

[0053] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. An elevator light curtain assembly, characterized in that, The elevator has two doors (200) arranged opposite each other. The elevator light curtain assembly (100) includes a light shield (10) and two light curtain strips (20). The two light curtain strips (20) are respectively installed at the ends of the two doors (200) that are close to each other. Along the width direction x of the door (200), a sensing area (201) is formed between the sides of the two light curtain strips (20) that face each other. Along the thickness direction y of the door (200), one side of the light curtain strip (20) is used to connect to the door (200), and the other side is used to connect to the light shield (10), so that the light shield (10) is located outside the sensing area (201). When the door is closed, there is a closing gap (300) between the two door bodies (200), and the projection of the light shield (10) along the thickness direction y of the door body (200) can cover the closing gap (300).

2. The elevator light curtain assembly according to claim 1, characterized in that, The light curtain strip (20) includes a housing (21) for fixing the door (200) and the housing (21) has a slot (210). The light-shielding member (10) includes a snap-fit ​​part (11) and a light-shielding part (12) connected to each other. The snap-fit ​​part (11) engages with the slot (210). The light-shielding part (12) extends out of the slot (210) and is used to block the closing gap (300) along the thickness direction y of the door body (200).

3. The elevator light curtain assembly according to claim 2, characterized in that, The slot (210) has a first opening (213), and the snap-fit ​​part (11) includes a limiting strip (111) and a connecting strip (112). The limiting strip (111) is snapped into the slot (210), and one end of the connecting strip (112) is connected to the limiting strip (111), and the other end passes through the first opening (213) and is connected to the light-shielding part (12).

4. The elevator light curtain assembly according to claim 3, characterized in that, The light-shielding member (10) is elastic, and the housing (21) has two limiting plates (211). The two limiting plates (211) are spaced apart along the thickness direction y of the door body (200) and surround to form the first opening (213). Each of the limiting plates (211) has an inner wall including a first wall (214) and a second wall (215) connected to each other. The first wall (214) extends along the thickness direction y of the door body (200) and cooperates with the end stop of the limiting strip (111). One end of the second wall (215) is connected to the first wall (214), and the other end is inclined outward relative to the thickness direction y of the door body (200) toward the first opening (213). The second wall (215) and the limiting strip (111) are spaced apart and enclosed to form a buffer space (216).

5. The elevator light curtain assembly according to claim 4, characterized in that, The second wall (215) is inclined at an angle A relative to the thickness direction y of the door body (200), and 40°≤A≤50°; And / or, along the thickness direction y of the door body (200), the extension length of the inner wall of the limiting plate (211) is L, and the extension length of the first wall (214) is L1, 0.45≤L1 / L≤0.

55.

6. The elevator light curtain assembly according to claim 2, characterized in that, The elevator light curtain assembly also includes a fastener (40), the housing (21) has an installation hole, the installation hole is connected to the slot (210), and the fastener (40) passes through the installation hole and is connected to the snap-fit ​​part (11).

7. The elevator light curtain assembly according to claim 2, characterized in that, The elevator light curtain assembly (100) also includes a baffle (30), the slot (210) is connected to both ends of the housing (21) along the height direction z of the door body (200), and forms an opening (240) at both ends of the housing (21), the baffle (30) being detachably connected to the opening (240).

8. The elevator light curtain assembly according to claim 2, characterized in that, The housing (21) includes a first housing (220) and a second housing (230), wherein the first housing (220) is connected to the door body (200) and the second housing (230) at both ends along the thickness direction y of the door body (200). The first housing (220) has a mounting groove (221) for accommodating a sensor, and the card slot (210) is formed in the second housing (230).

9. The elevator light curtain assembly according to claim 1, characterized in that, The light-shielding member (10) is elastic and is configured as a hollow structure; And / or, the light-shielding element (10) is configured as a multi-layer structure.

10. The elevator light curtain assembly according to claim 1, characterized in that, The number of light-shielding members (10) is configured to be one, one of the light-shielding members (10) is connected to one of the light curtain strips (20), and the projection of the light-shielding member (10) along the thickness direction y of the door body (200) can cover the closing gap (300). Alternatively, the number of light-shielding members (10) is configured to be two, each of the light-shielding members (10) being connected to one of the light curtain strips (20). When the door (200) is closed, the two light-shielding members (10) abut against each other, and the projection of the two light-shielding members (10) along the thickness direction y of the door (200) can cover the closing gap (300).

11. An elevator, characterized in that, The elevator includes two doors (200) arranged opposite each other and an elevator light curtain assembly (100) as described in any one of claims 1 to 10, wherein two light curtain strips (20) are respectively installed at the ends of the doors (200) that are close to each other.

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