Light curtain mounting structure

Abstract

The invention belongs to the technical field of elevator light curtains, and particularly relates to a light curtain mounting structure which comprises a pair of elevator doors. Mounting grooves are formed in the sides, close to each other, of the elevator doors. A light curtain strip is mounted in the mounting groove; the surface of the light curtain strip is fixedly connected with an insertion block; a guide groove is formed in the surface of the insertion block; a guide block is slidably connected into the guide groove. A first spring is fixedly connected between the guide block and the guide groove. A slot is formed in the elevator door; a limiting groove is formed in the inner side surface of the slot; when the elevator light curtain is mounted, the light curtain strips are pressed into the mounting grooves, the inserting blocks are connected into the inserting grooves, then the guide grooves are aligned with the limiting grooves, the first springs push the ends of the guide blocks into the limiting grooves, the limiting grooves can limit the guide blocks, and therefore the light curtain strips are fixed into the mounting grooves, bolts are avoided through the structure, operation is more convenient, and the service life of the elevator light curtain is prolonged. And the installed light curtain strip is more stable and does not fall off.

Description

Technical Field

[0001] The invention belongs to the technical field of elevator light curtains, in particular to a light curtain installation structure. Background Art

[0002] Elevator light curtains are used to improve the safety performance of elevators. They are usually composed of two light curtain strips, one of which is an infrared transmitter and the other is an infrared receiver, which are installed on the sides of the two elevator doors. When working, the infrared transmitter emits an infrared beam, and the infrared receiver receives the beam. When a passenger or an object is between a pair of elevator doors, the infrared beam will be blocked, and the control system will immediately output a door opening signal, and the elevator door will stop closing and reverse to open to prevent people from being pinched.

[0003] With regard to the existing related technologies, the inventors believe that the following defects often exist: when installing the elevator light curtain in the prior art, bolts are usually used to fix the infrared transmitter and the infrared receiver to the surface of the elevator door, and there are usually multiple bolts. On the one hand, the operation is cumbersome, and on the other hand, the bolts are prone to loosening or stripping after long-term use, resulting in the light curtain being not installed tightly enough.

[0004] To this end, the present invention provides a light curtain installation structure. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a light curtain installation structure described in the present invention includes a pair of elevator doors; a mounting groove is provided on the side of the elevator doors close to each other; a light curtain strip is installed inside the mounting groove, and the light curtain strip corresponding to one of the elevator doors is an infrared transmitter, and the light curtain strip corresponding to the other elevator door is an infrared receiver; an insert block is fixedly connected to the surface of the light curtain strip; a guide groove is provided on the surface of the insert block; a guide block is slidably connected inside the guide groove, and an inclined surface is provided on the side of the guide block extending outside the guide groove; a spring is fixedly connected between the guide block and the guide groove; a slot is provided inside the elevator door; a limiting slot is provided on the inner surface of the slot; the elevator light curtain in the prior art is During installation, bolts are usually used to fix the infrared transmitter and the infrared receiver to the surface of the elevator door, and there are usually multiple bolts. On the one hand, the operation is cumbersome, and on the other hand, the bolts are prone to loosening or stripping after long-term use, resulting in the light curtain being not installed tightly enough. At this time, when installing the elevator light curtain, the present invention aligns the plug on the surface of the light curtain strip with the slot, and then presses the light curtain strip into the installation slot, so that the plug is connected to the slot, and then the guide groove is aligned with the limit groove, and the spring pushes the end of the guide block into the limit groove, so that the limit groove can limit the guide block, thereby fixing the light curtain strip inside the installation slot. This structure avoids the use of bolts, is more convenient to operate, and the light curtain strip is more stable after installation and will not fall off.

[0007] Preferably, a push block is slidably connected inside the limit groove; a spring 2 is fixedly connected between the push block and the limit groove; a lever is fixedly connected to the surface of the push block; a lever groove is provided on the surface of the elevator door, and the lever extends to the surface of the elevator door through the lever groove; when the light curtain strip needs to be removed, the push block is pulled by the lever to move the push block toward the insertion block and squeeze the guide block into the guide groove. At this time, the insertion block is no longer affected by the limiting effect, and the light curtain strip can be taken out from the installation groove, which has the effect of convenient disassembly and is convenient for the staff to inspect or replace the light curtain strip.

[0008] Preferably, a power chamber is provided inside the elevator door above the installation slot; a reel is rotatably connected inside the power chamber, and the reel is driven by a motor; the motor is controlled by a processor; a pull rope is wound on the surface of the reel; a pair of slide grooves are provided on both sides of the installation slot; a counterweight is slidably connected inside the slide groove; a connecting rod is provided between the pair of counterweights, and the connecting rod is fixedly connected to the pull rope; a flexible brush strip is fixedly connected to the surface of the connecting rod; after the elevator door is used for a long time, dirt is easily adhered to the surface of the light curtain strip, especially lubricating oil leakage often occurs inside the elevator, and then the surface of the light curtain strip is more likely to absorb dust after being stained with oil, and these dirts will cause the infrared emission or reception of the light curtain strip to be hindered. At this time, the present invention can drive the reel to rotate forward by the motor, and then the reel reels the pull rope, and then the counterweight drives the connecting rod to slide downward, so that the flexible brush strip scrapes the surface of the light curtain strip, thereby scraping off the dirt, playing the role of self-cleaning of the light curtain strip, and then the motor drives the reel to reverse, and then the reel reels the pull rope, pulling the flexible brush strip and the counterweight to reset upward.

[0009] Preferably, the side of the counterweight block is rotatably connected to a group of rollers, and the rollers are in contact with the surface of the slide groove; by providing the rollers, the friction resistance between the counterweight block and the slide groove can be reduced, preventing the phenomenon of jamming due to excessive friction, and ensuring that the flexible brush strip can smoothly clean the light curtain strip.

[0010] Preferably, an adjustment groove is provided on the surface of the counterweight block; an adjustment block is slidably connected inside the adjustment groove, and the adjustment block is fixedly connected to the connecting rod; an electromagnet is fixedly connected to the side of the adjustment groove close to the light curtain strip, and the electromagnet is controlled by a processor; a spring three is fixedly connected between the side of the adjustment groove away from the light curtain strip and the adjustment block; the adjustment block is made of magnetic material, and the electromagnet repels each other with the adjustment block when energized; the motor and the electromagnet are coordinated and controlled by the processor, when the counterweight block moves downward, the electromagnet is not energized, and the spring three presses the adjustment block, thereby increasing the squeezing force between the flexible brush strip and the light curtain strip, thereby improving the scraping efficiency; when the counterweight block moves upward, the processor controls the electromagnet to energize, generating a repulsive force on the adjustment block, causing the adjustment block to move in a direction away from the light curtain strip, and then the flexible brush strip is separated from the light curtain strip, preventing the flexible brush strip from re-applying dirt to the surface of the light curtain strip when it moves upward.

[0011] Preferably, a collection box is provided at the bottom of the mounting groove, and the top of the collection box is in an open state; an elastic block is fixedly connected to the inside of the collection box, and the elastic block is located directly below the flexible brush strip; when the flexible brush strip moves downward, the scraped dirt can automatically fall into the collection box to realize the collection of dirt, and the collection box can be taken out and cleaned regularly. By providing the elastic block, when the counterweight block drives the flexible brush strip to move downward, the elastic block supports the flexible brush strip and plays a buffering role to prevent the downward impact force from being too large, which may cause the counterweight block or the flexible brush strip to be damaged by impact.

[0012] Preferably, a recessed portion is provided on the top of the elastic block; an anti-skid pad is fixedly connected to the surface of the recessed portion; when the flexible brush strip contacts the elastic block, the recessed portion and the anti-skid pad can play an anti-skid role, thereby avoiding the problem of misalignment when the flexible brush strip and the elastic block are squeezed against each other.

[0013] Preferably, a guide plate is fixedly connected to the inside of the mounting groove; the lower end of the guide plate extends to the inside of the collection box; the guide plate can guide the dirt falling downward, especially liquid dirt such as oil, so that the oil drips into the inside of the collection box along the guide plate, and prevents the oil from spreading laterally to other locations.

[0014] Preferably, the elastic block is configured as a hollow structure, and air is stored inside the elastic block; a group of nozzles are evenly distributed on the inner surface of the collecting box; the nozzles are connected to the elastic block via conduit one; adjacent nozzles are connected via conduit two; when the flexible brush strip squeezes the elastic block, the air inside the elastic block is filled into the nozzle via conduit one and conduit two, and is sprayed toward the flexible brush strip through the nozzle, and then the side of the flexible brush strip that has been in contact with the light curtain strip is affected by the jet effect, which can improve the separation efficiency between the dirt and the flexible brush strip.

[0015] Preferably, the outlet end of the nozzle is fixedly connected to a group of ribbons through a bracket; the nozzle can blow multiple ribbons to swing when spraying air, and then the ribbons swing and scrape on the surface of the flexible brush strip, thereby removing stubborn dirt remaining on the surface of the flexible brush strip, further improving the separation efficiency between the dirt and the flexible brush strip, and preventing the flexible brush strip from causing secondary pollution to the light curtain strip later.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. A light curtain installation structure described in the present invention, when installing an elevator light curtain, align the plug block on the surface of the light curtain strip with the slot, and then press the light curtain strip into the installation slot, so that the plug block is connected to the slot, and then the guide slot is aligned with the limit slot, and a spring pushes the end of the guide block into the limit slot, so that the limit slot can limit the guide block, thereby fixing the light curtain strip inside the installation slot. This structure avoids the use of bolts, is more convenient to operate, and the light curtain strip is more stable after installation and will not fall off.

[0018] 2. In the light curtain installation structure described in the present invention, when the light curtain strip needs to be removed, the push block is pulled by the lever to move the push block toward the insertion block and squeeze the guide block into the guide groove. At this time, the insertion block is no longer limited, and the light curtain strip can be taken out from the installation groove, which has the effect of convenient disassembly and is convenient for the staff to inspect or replace the light curtain strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 is a stereogram of the present invention;

[0021] Figure 2 yes Figure 1 A partial enlarged view of the middle part;

[0022] Figure 3 is a cross-sectional view of the top of the elevator door in the present invention;

[0023] Figure 4 It is a partial stereogram of the light curtain strip in the present invention;

[0024] Figure 5 is a three-dimensional diagram of the counterweight block of the present invention;

[0025] Figure 6 is a cross-sectional view of the bottom of the elevator door in the present invention;

[0026] Figure 7 yes Figure 6 A partial enlarged view of point B in the middle.

[0027] In the figure: elevator door 1, installation groove 2, light curtain strip 3, plug block 4, guide groove 5, guide block 6, spring one 7, slot 8, limit slot 9, push block 10, spring two 11, lever 12, lever slot 13, power chamber 14, reel 15, motor 16, pull rope 17, slide 18, counterweight 19, connecting rod 20, flexible brush strip 21, roller 22, adjustment slot 23, adjustment block 24, electromagnet 25, spring three 26, collection box 27, elastic block 28, anti-slip pad 29, guide piece 30, nozzle 31, conduit one 32, conduit two 33, streamer 34. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0029] Embodiment 1:

[0030] like Figures 1 to 5As shown, a light curtain installation structure described in an embodiment of the present invention comprises a pair of elevator doors 1; a mounting groove 2 is provided on the side of the elevator doors 1 close to each other; a light curtain strip 3 is installed inside the mounting groove 2, and the light curtain strip 3 corresponding to one of the elevator doors 1 is an infrared transmitter, and the light curtain strip 3 corresponding to the other elevator door 1 is an infrared receiver; an insert block 4 is fixedly connected to the surface of the light curtain strip 3; a guide groove 5 is provided on the surface of the insert block 4; a guide block 6 is slidably connected inside the guide groove 5, and a slope is provided on the side where the guide block 6 extends outside the guide groove 5; a spring 7 is fixedly connected between the guide block 6 and the guide groove 5; a slot 8 is provided inside the elevator door 1; a limiting slot 9 is provided on the inner side surface of the slot 8; when installing the elevator light curtain in the prior art, Usually, the infrared transmitter and the infrared receiver are fixedly connected to the surface of the elevator door 1 by bolts, and there are usually multiple bolts. On the one hand, the operation is cumbersome, and on the other hand, the bolts are easy to loosen or strip after long-term use, resulting in the installation of the light curtain not being tight enough. At this time, when installing the elevator light curtain, the present invention aligns the plug block 4 on the surface of the light curtain strip 3 with the slot 8, and then presses the light curtain strip 3 into the installation groove 2, so that the plug block 4 is connected to the slot 8, and then the guide groove 5 is aligned with the limit groove 9, and the spring 7 pushes the end of the guide block 6 into the limit groove 9, so that the limit groove 9 can limit the guide block 6, thereby fixing the light curtain strip 3 inside the installation groove 2. This structure avoids the use of bolts, is more convenient to operate, and the light curtain strip 3 is more stable after installation and will not fall off.

[0031] A push block 10 is slidably connected inside the limit groove 9; a spring 11 is fixedly connected between the push block 10 and the limit groove 9; a lever 12 is fixedly connected to the surface of the push block 10; a lever groove 13 is provided on the surface of the elevator door 1, and the lever 12 extends to the surface of the elevator door 1 through the lever groove 13; when the light curtain strip 3 needs to be removed, the push block 10 is pulled by the lever 12, so that the push block 10 moves toward the insertion block 4 and squeezes the guide block 6 into the guide groove 5. At this time, the insertion block 4 is no longer limited, and the light curtain strip 3 can be taken out from the installation groove 2, which has the effect of convenient disassembly and is convenient for the staff to inspect or replace the light curtain strip 3.

[0032] A power chamber 14 is provided inside the elevator door 1 above the installation slot 2; a reel 15 is rotatably connected inside the power chamber 14, and the reel 15 is driven by a motor 16; the motor 16 is controlled by a processor; a pull rope 17 is wound around the surface of the reel 15; a pair of slide grooves 18 are provided on both sides of the installation slot 2; a counterweight 19 is slidably connected inside the slide groove 18; a connecting rod 20 is provided between the pair of counterweights 19, and the connecting rod 20 is fixedly connected to the pull rope 17; a flexible brush strip 21 is fixedly connected to the surface of the connecting rod 20; after the elevator door 1 is used for a long time, dirt is easily adhered to the surface of the light curtain strip 3, especially Lubricating oil leakage often occurs inside the elevator, and the surface of the light curtain strip 3 is more likely to absorb dust after being stained with oil. These dirts will cause the infrared emission or reception of the light curtain strip 3 to be hindered. At this time, the present invention can drive the reel 15 to rotate forward through the motor 16, and then the reel 15 will reel the pull rope 17, and then the counterweight block 19 drives the connecting rod 20 to slide downward, so that the flexible brush strip 21 scrapes the surface of the light curtain strip 3, thereby scraping off the dirt, and playing a role in self-cleaning of the light curtain strip 3. Subsequently, the motor 16 drives the reel 15 to reverse, and then the reel 15 will reel in the pull rope 17, pulling the flexible brush strip 21 and the counterweight block 19 to reset upward.

[0033] The side of the counterweight block 19 is rotatably connected to a group of rollers 22, and the rollers 22 are in contact with the surface of the slide groove 18; by providing the rollers 22, the friction resistance between the counterweight block 19 and the slide groove 18 can be reduced to prevent the phenomenon of jamming due to excessive friction, thereby ensuring that the flexible brush strip 21 can smoothly clean the light curtain strip 3.

[0034] The surface of the counterweight block 19 is provided with an adjustment groove 23; an adjustment block 24 is slidably connected inside the adjustment groove 23, and the adjustment block 24 is fixedly connected to the connecting rod 20; an electromagnet 25 is fixedly connected to the side of the adjustment groove 23 close to the light curtain strip 3, and the electromagnet 25 is controlled by the processor; a spring 26 is fixedly connected between the side of the adjustment groove 23 away from the light curtain strip 3 and the adjustment block 24; the adjustment block 24 is made of magnetic material, and the electromagnet 25 repels each other with the adjustment block 24 when energized; the processor controls the motor 16 and The electromagnet 25 cooperates in control. When the counterweight block 19 moves downward, the electromagnet 25 is not energized, and the spring three 26 presses the adjustment block 24 to increase the squeezing force between the flexible brush strip 21 and the light curtain strip 3, thereby improving the scraping efficiency. When the counterweight block 19 moves upward, the processor controls the electromagnet 25 to be energized, generating a repulsive force on the adjustment block 24, causing the adjustment block 24 to move away from the light curtain strip 3, thereby separating the flexible brush strip 21 from the light curtain strip 3, preventing the flexible brush strip 21 from re-applying dirt to the surface of the light curtain strip 3 when moving upward.

[0035] Embodiment 2:

[0036] like Figure 6 to Figure 7As shown, compared with Example 1, another implementation of the present invention is: a collecting box 27 is provided at the bottom of the mounting groove 2, and the top of the collecting box 27 is in an open state; an elastic block 28 is fixedly connected to the inside of the collecting box 27, and the elastic block 28 is located directly below the flexible brush strip 21; when the flexible brush strip 21 moves downward, the scraped dirt can automatically fall into the collecting box 27 to realize the collection of dirt, and the collecting box 27 can be taken out and cleaned regularly. By providing the elastic block 28, when the counterweight block 19 drives the flexible brush strip 21 to move downward, the elastic block 28 supports the flexible brush strip 21 and plays a buffering role to prevent the downward impact force from being too large, which may cause the counterweight block 19 or the flexible brush strip 21 to be damaged by impact.

[0037] The elastic block 28 is provided with a recessed portion on the top; an anti-skid pad 29 is fixedly connected to the surface of the recessed portion; when the flexible brush strip 21 contacts the elastic block 28, the recessed portion and the anti-skid pad 29 can play an anti-skid role, thereby avoiding the problem of misalignment when the flexible brush strip 21 and the elastic block 28 are squeezed against each other.

[0038] A guide sheet 30 is fixedly connected to the inside of the mounting groove 2; the lower end of the guide sheet 30 extends to the inside of the collection box 27; the guide sheet 30 can guide the dirt falling downward, especially for liquid dirt such as oil, so that the oil drips into the inside of the collection box 27 along the guide sheet 30, and prevents the oil from spreading laterally to other locations.

[0039] The elastic block 28 is configured as a hollow structure, and air is stored inside the elastic block 28; a group of nozzles 31 are evenly distributed on the inner surface of the collecting box 27; the nozzles 31 are connected to the elastic block 28 via a conduit 1 32; adjacent nozzles 31 are connected via a conduit 2 33; when the flexible brush strip 21 squeezes the elastic block 28, the air inside the elastic block 28 is filled into the nozzle 31 via conduit 1 32 and conduit 2 33, and is sprayed toward the flexible brush strip 21 via the nozzle 31, and then the side of the flexible brush strip 21 that has been in contact with the light curtain strip 3 is subjected to the jet effect, which can improve the separation efficiency between the dirt and the flexible brush strip 21.

[0040] A group of streamers 34 are fixedly connected to the outlet end of the nozzle 31 through a bracket; when the nozzle 31 sprays air, it can blow multiple streamers 34 to swing, and then the streamers 34 swing and scrape on the surface of the flexible brush strip 21, thereby removing stubborn dirt remaining on the surface of the flexible brush strip 21, further improving the separation efficiency between the dirt and the flexible brush strip 21, and preventing the flexible brush strip 21 from causing secondary pollution to the light curtain strip 3 later.

[0041] Working principle: When installing the elevator light curtain, align the plug block 4 on the surface of the light curtain strip 3 with the slot 8, and then press the light curtain strip 3 into the installation slot 2, so that the plug block 4 is connected to the slot 8, and then the guide slot 5 is aligned with the limit slot 9, and the spring 7 pushes the end of the guide block 6 into the limit slot 9, so that the limit slot 9 can limit the guide block 6, thereby fixing the light curtain strip 3 inside the installation slot 2. This structure avoids the use of bolts, and the operation is more convenient. After installation, the light curtain strip 3 is more stable and will not fall off. When the light curtain strip 3 needs to be removed, the push block 10 is pulled by the lever 12, so that the push block 10 moves toward the plug block 4 and squeezes the guide block 6 into the guide slot 5. At this time, the plug block 4 is no longer limited, and the light curtain strip 3 can be removed from the installation slot 2. The light curtain strip 3 is easy to be taken out and disassembled, which is convenient for the staff to inspect or replace the light curtain strip 3; after the elevator door 1 is used for a long time, the surface of the light curtain strip 3 is easy to adhere to dirt, especially the lubricating oil leakage often occurs inside the elevator, and then the surface of the light curtain strip 3 is more likely to absorb dust after being stained with oil, and these dirts will cause the infrared emission or reception of the light curtain strip 3 to be hindered. At this time, the present invention can drive the reel 15 to rotate forward through the motor 16, and then the reel 15 reels the pull rope 17, and then the counterweight block 19 drives the connecting rod 20 to slide downward, so that the flexible brush strip 21 scrapes the surface of the light curtain strip 3, thereby scraping off the dirt, and playing the role of self-cleaning of the light curtain strip 3, and then the motor 16 drives the reel 15 to reverse, and then the reel 15 reels the pull rope 17 is retracted, pulling the flexible brush strip 21 and the counterweight block 19 to reset upward; by setting the roller 22, the friction resistance between the counterweight block 19 and the slide groove 18 can be reduced to prevent the phenomenon of being stuck due to excessive friction, and ensure that the flexible brush strip 21 can smoothly clean the light curtain strip 3; the processor controls the motor 16 and the electromagnet 25 in coordination, when the counterweight block 19 moves downward, the electromagnet 25 is not energized, and the spring three 26 presses the adjustment block 24 to increase the squeezing force between the flexible brush strip 21 and the light curtain strip 3, thereby improving the scraping efficiency, when the counterweight block 19 moves upward, the processor controls the electromagnet 25 to energize, and generates a repulsive force on the adjustment block 24, so that the adjustment block 24 moves in a direction away from the light curtain strip 3, and then the flexible brush strip 21 The flexible brush strip 21 is separated from the light curtain strip 3 to prevent the flexible brush strip 21 from re-applying dirt to the surface of the light curtain strip 3 when it moves upward; when the flexible brush strip 21 moves downward, the scraped dirt can automatically fall into the collecting box 27 to collect the dirt, and the collecting box 27 can be taken out and cleaned regularly. By setting the elastic block 28, when the counterweight block 19 drives the flexible brush strip 21 to move downward, the elastic block 28 supports the flexible brush strip 21 and plays a buffering role to prevent the counterweight block 19 or the flexible brush strip 21 from being damaged by the downward impact force being too large; when the flexible brush strip 21 contacts the elastic block 28, the recessed portion and the anti-skid pad 29 can play an anti-skid effect to avoid the problem of misalignment when the flexible brush strip 21 and the elastic block 28 squeeze each other;The guide sheet 30 can guide the dirt falling downward, especially for liquid dirt such as oil, so that the oil drips into the collection box 27 along the guide sheet 30, and prevents the oil from spreading laterally to other positions; when the flexible brush strip 21 squeezes the elastic block 28, the air inside the elastic block 28 is filled into the nozzle 31 through the conduit 1 32 and the conduit 2 33, and is sprayed toward the flexible brush strip 21 through the nozzle 31, so that the side of the flexible brush strip 21 that has been in contact with the light curtain strip 3 is affected by the jet effect, which can improve the separation efficiency between the dirt and the flexible brush strip 21; when the nozzle 31 sprays air, it can blow multiple streamers 34 to swing, and then the streamers 34 swing and scrape on the surface of the flexible brush strip 21, remove the stubborn dirt remaining on the surface of the flexible brush strip 21, further improve the separation efficiency between the dirt and the flexible brush strip 21, and prevent the flexible brush strip 21 from causing secondary pollution to the light curtain strip 3. ;

[0042] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are 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 understood as limiting the scope of protection of the present invention.

[0044] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A light curtain installation structure, characterized in that: The invention comprises a pair of elevator doors (1); a mounting groove (2) is provided on one side of the elevator doors (1) close to each other; a light curtain strip (3) is installed inside the mounting groove (2), and the light curtain strip (3) corresponding to one of the elevator doors (1) is an infrared transmitter, and the light curtain strip (3) corresponding to the other elevator door (1) is an infrared receiver; an insert block (4) is fixedly connected to the surface of the light curtain strip (3); a guide groove (5) is provided on the surface of the insert block (4); a guide block (6) is slidably connected inside the guide groove (5), and a slope is provided on the side of the guide block (6) extending outside the guide groove (5); a spring (7) is fixedly connected between the guide block (6) and the guide groove (5); a slot (8) is provided inside the elevator door (1); and a limit slot (9) is provided on the inner side surface of the slot (8).

2. A light curtain installation structure according to claim 1, characterized in that: A push block (10) is slidably connected inside the limiting groove (9); a second spring (11) is fixedly connected between the push block (10) and the limiting groove (9); a shifting rod (12) is fixedly connected to the surface of the push block (10); a shifting groove (13) is provided on the surface of the elevator door (1), and the shifting rod (12) extends to the surface of the elevator door (1) through the shifting groove (13).

3. A light curtain installation structure according to claim 2, characterized in that: A power chamber (14) is provided inside the elevator door (1) above the installation slot (2); a reel (15) is rotatably connected inside the power chamber (14), and the reel (15) is driven by a motor (16); the motor (16) is controlled by a processor; a pull rope (17) is wound around the surface of the reel (15); a pair of slide grooves (18) are provided on both sides of the installation slot (2); a counterweight (19) is slidably connected inside the slide groove (18); a connecting rod (20) is provided between the pair of counterweights (19), and the connecting rod (20) is fixedly connected to the pull rope (17); a flexible brush strip (21) is fixedly connected to the surface of the connecting rod (20).

4. A light curtain installation structure according to claim 3, characterized in that: The counterweight block (19) is rotatably connected to a group of rollers (22) at the side, and the rollers (22) are in contact with the surface of the slide groove (18).

5. The light curtain installation structure according to claim 3, characterized in that: The counterweight block (19) is provided with an adjustment groove (23) on its surface; an adjustment block (24) is slidably connected inside the adjustment groove (23), and the adjustment block (24) is fixedly connected to the connecting rod (20); an electromagnet (25) is fixedly connected to the side of the adjustment groove (23) close to the light curtain strip (3), and the electromagnet (25) is controlled by a processor; a spring three (26) is fixedly connected between the side of the adjustment groove (23) away from the light curtain strip (3) and the adjustment block (24); the adjustment block (24) is made of magnetic material, and the electromagnet (25) and the adjustment block (24) repel each other when power is supplied.

6. A light curtain installation structure according to claim 3, characterized in that: A collection box (27) is provided at the bottom of the installation groove (2), and the top of the collection box (27) is in an open state; an elastic block (28) is fixedly connected inside the collection box (27), and the elastic block (28) is located directly below the flexible brush strip (21).

7. A light curtain installation structure according to claim 6, characterized in that: The top of the elastic block (28) is provided with a recessed portion; and a non-slip pad (29) is fixedly connected to the surface of the recessed portion.

8. The light curtain installation structure according to claim 6, characterized in that: A guide piece (30) is fixedly connected inside the installation groove (2); the lower end of the guide piece (30) extends to the inside of the collection box (27).

9. The light curtain installation structure according to claim 6, characterized in that: The elastic block (28) is configured as a hollow structure, and air is stored inside the elastic block (28); a group of nozzles (31) are evenly distributed on the inner surface of the collection box (27); the nozzles (31) are connected to the elastic block (28) via a first conduit (32); and adjacent nozzles (31) are connected via a second conduit (33).

10. A light curtain installation structure according to claim 9, characterized in that: The outlet end of the nozzle (31) is fixedly connected to a group of streamers (34) via a bracket.

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