An elevator light curtain that is easy to install

Abstract

The present invention provides an elevator light curtain that is easy to install, and relates to the technical field of elevator light curtains, including two elevator light curtains each having an L-shaped slide bar slidably installed thereon, the two L-shaped slide bars are arranged opposite to each other from left to right, and one end of the two L-shaped slide bars close to each other is welded with an upright mounting plate; a brush plate is installed on each of the two upright mounting plates, and a cleaning sponge is fixed on each of the two brush plates; and an infrared emitting array and a receiving array arranged up and down are respectively arranged on the side of the elevator light curtain close to each other on the left side. The L-shaped slide bar, the brush plate, and the cleaning sponge together constitute a cleaning mechanism for the infrared emitting array and the receiving array, and the cleaning mechanism is directly installed on the elevator light curtain, and can directly clean the infrared emitting array and the receiving array without disassembling and removing the elevator light curtain from the interval space between the floor door and the car door, which will occupy the normal operation time of the elevator.

Description

Technical Field

[0001] The invention relates to the technical field of elevator light curtains, and in particular to an elevator light curtain that is easy to install. Background Art

[0002] The elevator light curtain is a kind of elevator safety protection device, which mainly includes infrared transmitters and receivers installed on both sides of the elevator car door. During the working process, the infrared transmitter continuously scans the car door area from top to bottom to form a dense infrared protection light curtain. When any beam of light is blocked, the control system immediately outputs a door opening signal, and the car door stops closing and reverses to open. The elevator door can not be closed normally until the passengers or obstacles leave the warning area, thereby achieving the purpose of safety protection, which can avoid the occurrence of elevator pinching accidents.

[0003] Existing elevator light curtains such as Figure 1 As shown, when in use, it is installed in the interval space between the floor door and the car door. The interval space between the floor door and the car door is extremely narrow, and it is difficult to directly clean the transmitting array and the receiving array on the elevator light curtain through the narrow interval space. The elevator needs to be stopped and the elevator light curtain needs to be disassembled and removed from the narrow interval space. The operation is troublesome and inconvenient, and it will occupy the normal operation time of the elevator. Summary of the invention

[0004] In view of this, the present invention provides an elevator light curtain that is easy to install to solve the problem that the elevator needs to be stopped and the elevator light curtain needs to be removed from the narrow space between the floor door and the car door for cleaning, which is troublesome and inconvenient to operate and will occupy the normal operation time of the elevator.

[0005] The technical solution proposed by the present invention is: an elevator light curtain that is easy to install, specifically comprising a car, two landing doors and an elevator light curtain, wherein two car doors are slidably installed on the opening of the car in a left-right symmetrical manner, an elevator light curtain is fixed to each end of the two car doors close to each other, the two landing doors are spaced from the two car doors in a front-to-back manner, and the two elevator light curtains are located in the interval space between the two landing doors and the two car doors;

[0006] An L-shaped slide bar is slidably installed on the two elevator light curtains, and the two L-shaped slide bars are arranged to face each other from left to right. A vertical mounting plate is welded on the ends of the two L-shaped slide bars close to each other; a brush plate is installed on the two vertical mounting plates, and a cleaning sponge is fixed on the two brush plates; an infrared transmitting array and a receiving array arranged up and down are respectively arranged on the side close to each other of the elevator light curtain on the left side, and the infrared transmitting array and the receiving array are both packaged by a light-transmitting glass plate, and the two cleaning sponges are in contact with the two light-transmitting glass plates; a strip driving groove is welded on the vertical bending part of the tail end of the L-shaped slide bar;

[0007] On both sides of the two elevator light curtains that are far away from each other, there are two L-shaped mounting rods fixed symmetrically up and down. At the front ends of the two L-shaped mounting rods, there is a synchronous pulley rotatably installed. A synchronous belt is tensioned and sleeved between the two synchronous pulleys. And at the front end part of the bottom L-shaped mounting rod, there is a cleaning motor installed, and the cleaning motor is axially connected and driven with the bottom synchronous pulley; a dial shaft is fixed on the synchronous belt, and the dial shaft is inserted and matched with the strip-shaped driving groove. The up and down sliding of the two L-shaped sliding rods can drive the two brush plates and the two cleaning sponges thereon to brush and clean the dust on the light-transmitting glass plates of the infrared emission array and the receiving array, avoiding the accumulated dust on the light-transmitting glass plates from blocking the infrared rays and inadvertently triggering the safety protection door-opening program of the elevator, resulting in the car door being restricted from closing and remaining in the normally open state, affecting the normal use of the elevator. Through the synchronous belt and the dial shaft, the cleaning motor can rotate to drive the L-shaped sliding rod to slide up and down along the two hexagonal positioning shafts for cleaning.

[0008] Further,

[0009] On the side of the elevator light curtain close to the car door, there is a mounting plate fixedly arranged, and the mounting plate locks and connects the elevator light curtain and the car door together through screws.

[0010] Further,

[0011] On both sides of the two elevator light curtains that are far away from each other, there are two hexagonal positioning shafts arranged at intervals, and the bent part at the tail end of the L-shaped sliding rod is slidably matched with the two hexagonal positioning shafts.

[0012] Further,

[0013] On the vertical mounting plate, there are two rectangular slots symmetrically opened. In both of the two rectangular slots, there is a vertical positioning plug inserted through by spring pushing. Between the lower halves of the two vertical positioning plugs, there is a U-shaped pushing plate welded, and the U-shaped pushing plate is used to push and pull out the two vertical positioning plugs.

[0014] Further,

[0015] On the side of the brush plate facing the vertical mounting plate, there are two horizontally arranged insertion blocks symmetrically welded. The two insertion blocks are correspondingly inserted and matched with the bottom parts of the two rectangular slots, and the vertical parts of the two vertical positioning plugs are correspondingly inserted through the two insertion blocks. The two vertical positioning plugs can insert and position the two insertion blocks, so that the brush plate and the vertical mounting plate are fixed together. And the two vertical positioning plugs are installed by spring pushing. Just lift and pull them out to loosen the brush plate and disassemble the brush plate. In addition, the brush plate is detachably installed by insertion. It can be taken out from the narrow space between the vertical mounting plate, the elevator light curtain and the marking lamp to replace the cleaning sponge. And when disassembling the brush plate, it is necessary to compress the cleaning sponge and slide the brush plate towards the side of the marking lamp to separate the two insertion blocks from the two rectangular slots.

[0016] Furthermore,

[0017] Marking lights are fixedly installed on the top of the two elevator light curtains, and the marking lights emit colored warning lights. When the warning light is not blocked by the brush plate, it indicates that the brush plate has not been slid back to the initial state. When the warning light is blocked by the brush plate, it indicates that the brush plate has slid back to the initial state. Furthermore, whether the brush plate has returned to the initial state can be judged by whether the warning light is blocked, and this can also be used as a reference until the brush plate is adjusted to the initial state through the synchronous belt, so as to avoid the brush plate being unable to reset to the initial state and causing obstruction to the infrared transmitting array and the receiving array.

[0018] Furthermore,

[0019] When the brush plate slides upward and is placed in an initial state, it blocks the marking light.

[0020] Furthermore,

[0021] When the brush plate blocks the marker light, the cleaning sponge is squeezed and rubbed into contact with the light-transmitting plate of the marker light, which can also frictionally clean the light-transmitting plate of the marker light, thereby helping to ensure the brightness of the marker light and the penetrability of the light.

[0022] The present invention provides an elevator light curtain that is easy to install and has the following beneficial effects:

[0023] When the present invention is in use, the two L-shaped sliding bars slide up and down to drive the two brush plates and the two cleaning sponges thereon to brush and clean the dust on the light-transmitting glass plates of the infrared transmitting array and the receiving array, so as to prevent the dust accumulation on the light-transmitting glass plates from blocking the infrared rays and inadvertently triggering the elevator's safety protection door opening program, causing the car door to be restricted from closing and being in a normally open state, thereby affecting the normal use of the elevator.

[0024] In addition, the L-shaped sliding rod, brush plate and cleaning sponge together constitute a cleaning mechanism for the infrared transmitting array and the receiving array. This cleaning mechanism is directly installed on the elevator light curtain. It can directly clean the infrared transmitting array and the receiving array without removing the elevator light curtain from the interval space between the floor door and the car door. Compared with the existing technology, the operation is more efficient and convenient, and will not occupy the normal operation time of the elevator.

[0025] In addition, the brush plate is installed in a detachable manner by plugging, and can be taken out from the narrow interval between the vertical mounting plate and the elevator light curtain and the marker light to replace the cleaning sponge, thereby avoiding the cleaning sponge being confined in the narrow interval and difficult to disassemble and replace.

[0026] In addition, when the prompt light is not blocked by the brush plate, it means that the brush plate has not slid back to the initial state. When the prompt light is blocked by the brush plate, it means that the brush plate has slid back to the initial state. Then, whether the brush plate has returned to the initial state can be judged by whether the prompt light is blocked. This can also be used as a reference until the brush plate is adjusted to the initial state through the synchronous belt, so as to avoid the brush plate being unable to reset to the initial state and causing obstruction to the infrared transmitting array and the receiving array, affecting the normal use of the two elevator light curtains and the elevator. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0028] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0029] In the attached picture:

[0030] Figure 1 The diagram shows the installation and use status of the elevator light curtain of the present invention;

[0031] Figure 2 A schematic diagram showing the installation position of the elevator light curtain of the present invention is shown;

[0032] Figure 3 The schematic diagram of the elevator light curtain structure of the present invention is shown;

[0033] Figure 4 A schematic diagram showing the installation position of the cleaning motor of the present invention is shown;

[0034] Figure 5 A schematic diagram showing a disassembled state of the cleaning motor of the present invention is shown;

[0035] Figure 6 A schematic diagram of the L-shaped slide bar of the present invention in a disassembled state is shown;

[0036] Figure 7 A schematic diagram showing a disassembled state of the brush plate of the present invention is shown;

[0037] Figure 8 The present invention shows Figure 5 The enlarged structural diagram of part A in the middle;

[0038] Fig. 9 The present invention shows Figure 5 The enlarged structural diagram of part B is shown in the figure.

[0039] Reference numerals list

[0040] 1. Car; 101. Car door;

[0041] 2. Landing door;

[0042] 3. Elevator light curtain; 301. Mounting plate; 302. L-shaped mounting rod; 303. Hexagonal positioning shaft;

[0043] 4. L-shaped slide bar; 401. vertical mounting plate; 402. strip drive groove; 403. sun-shaped groove; 404. vertical positioning rod; 405. U-shaped push plate;

[0044] 5. Brush plate; 501. Cleaning sponge; 502. Insert block;

[0045] 6. Marking light;

[0046] 7. Synchronous wheel; 701. Synchronous belt; 702. Dial shaft;

[0047] 8. Clean the motor. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0049] Example 1, please refer to Figures 1 to 9

[0050] The present invention proposes an elevator light curtain that is easy to install, comprising a car 1, two landing doors 2 and an elevator light curtain 3. Two car doors 101 are symmetrically slidably installed on the opening of the car 1, and one elevator light curtain 3 is fixed to each end of the two car doors 101 close to each other. The two landing doors 2 are spaced from the two car doors 101 in front and back, and the two elevator light curtains 3 are located in the interval space between the two landing doors 2 and the two car doors 101.

[0051] An L-shaped slide bar 4 is slidably installed on the two elevator light curtains 3, and the two L-shaped slide bars 4 are arranged to face each other from left to right. A vertical mounting plate 401 is welded on the ends of the two L-shaped slide bars 4 that are close to each other; a brush plate 5 is installed on the two vertical mounting plates 401, and a cleaning sponge 501 is fixed on the two brush plates 5; an infrared transmitting array and a receiving array arranged up and down are respectively provided on the side of the left elevator light curtain 3 that is close to each other, and the infrared transmitting array and the receiving array are both passed through, and the two cleaning sponges 501 are in contact with the two light-transmitting glass plates correspondingly; a strip driving groove 402 is welded on the vertical bending part at the tail end of the L-shaped slide bar 4, and the two L-shaped slide bars 4 can drive the two brush plates 5 and the two cleaning sponges 501 thereon to slide up and down to the infrared The dust on the light-transmitting glass plates of the external transmitting array and the receiving array is cleaned by brushing to prevent the dust on the light-transmitting glass plates from blocking the infrared rays, thereby accidentally triggering the elevator's safety protection door opening procedure, causing the car door 101 to be restricted from closing and in a normally open state, affecting the normal use of the elevator. The L-shaped slide bar 4, the brush plate 5 and the cleaning sponge 501 together constitute a cleaning mechanism for the infrared transmitting array and the receiving array. This cleaning mechanism is directly installed on the elevator light curtain 3. It can directly clean the infrared transmitting array and the receiving array without disassembling the elevator light curtain 3 from the interval space between the floor door 2 and the car door 101. Compared with the prior art, the operation is more efficient and convenient, and will not occupy the normal operation time of the elevator.

[0052] Two L-shaped mounting rods 302 are fixed symmetrically on the sides of the two elevator light curtains 3 that are away from each other. A synchronous wheel 7 is rotatably installed at the head end of the two L-shaped mounting rods 302. A synchronous belt 701 is tightly mounted between the two synchronous wheels 7. A cleaning motor 8 is installed at the head end of the bottom L-shaped mounting rod 302. The cleaning motor 8 is axially connected to the synchronous wheel 7 on the bottom side for transmission. A shift shaft 702 is fixed on the synchronous belt 701. The shift shaft 702 is plugged into the strip drive groove 402. Through the synchronous belt 701 and the shift shaft 702, the cleaning motor 8 can rotate to drive the L-shaped slide bar 4 to slide up and down along the two hexagonal positioning shafts 303 to perform cleaning.

[0053] Specifically,

[0054] A mounting plate 301 is fixedly provided on one side of the elevator light curtain 3 close to the car door 101 , and the mounting plate 301 is locked and connected with the elevator light curtain 3 and the car door 101 by screws.

[0055] Specifically,

[0056] Two hexagonal positioning shafts 303 are arranged at intervals on the side away from each other of the two elevator light curtains 3, and the tail end bending part of the L-shaped slide bar 4 slides with the two hexagonal positioning shafts 303. The two hexagonal positioning shafts 303 are used to limit the sliding trajectory of the L-shaped slide bar 4 to ensure that it can slide straight up and down.

[0057] Specifically,

[0058] Two "day"-shaped slots 403 are symmetrically formed in the vertical mounting plate 401. A vertical positioning insertion rod 404 is inserted through both of the two "day"-shaped slots 403 by spring pushing. A U-shaped pushing plate 405 is welded between the lower parts of the two vertical positioning insertion rods 404. The U-shaped pushing plate 405 is used to push and extract the two vertical positioning insertion rods 404.

[0059] Specifically,

[0060] On one side of the brush plate 5 facing the vertical mounting plate 401, two horizontally arranged insertion blocks 502 are symmetrically welded. The two insertion blocks 502 are correspondingly inserted and matched with the bottom side parts of the two "day"-shaped slots 403. The vertical parts of the two vertical positioning insertion rods 404 are correspondingly inserted and penetrated through the two insertion blocks 502. The two vertical positioning insertion rods 404 can insert and position the two insertion blocks 502, so that the brush plate 5 and the vertical mounting plate 401 are fixed together. Moreover, the two vertical positioning insertion rods 404 are installed by spring pushing. Only by lifting and extracting them can the brush plate 5 be loosened to disassemble the brush plate 5. In addition, the brush plate 5 is detachably installed by insertion. It can be taken out from the narrow space between the vertical mounting plate 401, the elevator light curtain 3 and the marking lamp 6 to replace the cleaning sponge 501, avoiding that the cleaning sponge 501 is restricted in the above narrow space and is difficult to disassemble and replace. And when disassembling the brush plate 5, it is necessary to compress the cleaning sponge 501 and slide the brush plate 5 towards the side of the marking lamp 6 to separate the two insertion blocks 502 from the two "day"-shaped slots 403.

[0061] On the basis of Embodiment 1, Embodiment 2:

[0062] Marking lamps 6 are fixedly installed at the tops of the two elevator light curtains 3. The marking lamps 6 emit prompt lights with colors. When the prompt lights are not blocked by the brush plate 5, it means that the brush plate 5 has not been slid up and returned to the initial state. When the prompt lights are blocked by the brush plate 5, it means that the brush plate 5 has slid up and returned to the initial state. Furthermore, whether the brush plate 5 has returned to the initial state can be judged by whether the prompt lights are blocked, and this can also be used as a reference until the brush plate 5 is conveyed and adjusted to the initial state through the synchronous belt 701, avoiding that the brush plate 5 cannot be reset to the initial state and blocking the infrared emission array and the receiving array, affecting the normal use of the two elevator light curtains 3 and the elevator.

[0063] Specifically,

[0064] When the brush plate 5 slides up and is placed in the initial state, it blocks the marking lamp 6.

[0065] Specifically,

[0066] When the brush plate 5 blocks the marking light 6, the cleaning sponge 501 is squeezed and rubbed into contact with the light-transmitting plate of the marking light 6, which can also frictionally clean the light-transmitting plate of the marking light 6, helping to ensure the brightness of the marking light 6 and the penetrability of the light.

[0067] Working principle of this embodiment: When in use, the two elevator light curtains 3 are located in the interval space between the two landing doors 2 and the two car doors 101 (refer to Figure 1 ), and through the synchronous belt 701 and the dial shaft 702, the cleaning motor 8 can rotate to drive the L-shaped slide bar 4 to slide up and down along the two hexagonal positioning shafts 303. The two L-shaped slide bars 4 can drive the two brush plates 5 and the two cleaning sponges 501 thereon to brush and clean the dust on the light-transmitting glass plates of the infrared transmitting array and the receiving array, so as to avoid the dust accumulation on the light-transmitting glass plates blocking the infrared rays and inadvertently triggering the safety protection door opening procedure of the elevator, so that the car door 101 is restricted to be closed and is in a normally open state, affecting the normal use of the elevator. The two hexagonal positioning shafts 303 are used to limit the sliding track of the L-shaped slide bar 4 to ensure that it can slide straight up and down;

[0068] The two vertical positioning rods 404 can be used to insert and position the two plug blocks 502, so that the brush plate 5 and the vertical mounting plate 401 are kept fixed together, and the two vertical positioning rods 404 are installed by spring push-up, and the brush plate 5 can be loosened by simply lifting and pulling it out to disassemble the brush plate 5. In addition, the brush plate 5 is installed by plugging and detaching, and it can be taken out from the narrow interval between the vertical mounting plate 401 and the elevator light curtain 3 and the marking light 6, and the cleaning sponge 501 is replaced. Specifically, when disassembling the brush plate 5, it is necessary to compress the cleaning sponge 501 to slide the brush plate 5 to one side of the marking light 6, so that the two plug blocks 502 are pulled out and separated from the two Japanese-shaped grooves 403. In addition, the U-shaped push plate 405 is used to push and pull out the two vertical positioning rods 404;

[0069] Marking lights 6 are fixedly installed on the top of the two elevator light curtains 3. The marking lights 6 emit colored warning lights. Whether the warning lights are blocked can be used to determine whether the brush plate 5 has returned to its initial state. This can also be used as a reference until the brush plate 5 is transported and adjusted to its initial state through the synchronous belt 701, so as to avoid the brush plate 5 being unable to reset to its initial state and blocking the infrared transmitting array and the receiving array, thereby affecting the normal use of the two elevator light curtains 3 and the elevators.

[0070] In this article, there are a few points to note:

[0071] 1. The drawings of the embodiments of the present invention only involve structures related to the embodiments of the present invention, and other structures can refer to the general design.

[0072] 2. In the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to obtain new embodiments.

[0073] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An elevator light curtain that is easy to install, comprising a car (1), two landing doors (2) and an elevator light curtain (3), wherein two car doors (101) are symmetrically slidably installed on the opening of the car (1), one end of the two car doors (101) close to each other is fixed with an elevator light curtain (3), the two landing doors (2) and the two car doors (101) are spaced front to back, and the two elevator light curtains (3) are located in the space between the two landing doors (2) and the two car doors (101); It is characterized in that An L-shaped slide bar (4) is slidably mounted on the two elevator light curtains (3), and the two L-shaped slide bars (4) are arranged to face each other from left to right. A vertical mounting plate (401) is welded to the ends of the two L-shaped slide bars (4) close to each other; a brush plate (5) is mounted on the two vertical mounting plates (401), and a cleaning sponge (501) is fixed to the two brush plates (5); an infrared emitting array and a receiving array arranged up and down are respectively arranged on the sides of the elevator light curtain (3) close to each other on the left side, and the infrared emitting array and the receiving array are both encapsulated by a light-transmitting glass plate, and the two cleaning sponges (501) are in contact with the two light-transmitting glass plates; a strip driving groove (402) is welded to the vertical bending part at the tail end of the L-shaped slide bar (4); Two L-shaped mounting rods (302) are fixed symmetrically on the sides of the two elevator light curtains (3) away from each other, and a synchronous wheel (7) is rotatably mounted on the head ends of the two L-shaped mounting rods (302). A synchronous belt (701) is tightly sleeved between the two synchronous wheels (7), and a cleaning motor (8) is installed on the head end of the bottom L-shaped mounting rod (302). The cleaning motor (8) is axially connected to the synchronous wheel (7) on the bottom side for transmission; a shifting shaft (702) is fixed on the synchronous belt (701), and the shifting shaft (702) is plugged into and matched with the strip-shaped driving groove (402); Two hexagonal positioning shafts (303) are arranged at intervals on the sides of the two elevator light curtains (3) that are away from each other, and the tail end bending part of the L-shaped sliding rod (4) is slidably matched with the two hexagonal positioning shafts (303); The vertical mounting plate (401) is symmetrically provided with two symmetrically shaped grooves (403), each of which has a vertical positioning rod (404) inserted therein through the two symmetrical grooves (403) by means of a spring push, and a U-shaped push plate (405) is welded between the lower halves of the two vertical positioning rods (404); Two horizontally arranged plug blocks (502) are symmetrically welded on one side of the brush plate (5) facing the vertical mounting plate (401); the two plug blocks (502) are plugged into and matched with the bottom portions of the two Japanese-shaped grooves (403), and the vertical portions of the two vertical positioning plug rods (404) are plugged into and matched with the two plug blocks (502).

2. The elevator light curtain that is easy to install according to claim 1, characterized in that: A mounting plate (301) is fixedly provided on one side of the elevator light curtain (3) close to the car door (101), and the mounting plate (301) is locked and connected together with the elevator light curtain (3) and the car door (101) by screws.

3. The elevator light curtain that is easy to install according to claim 1, characterized in that: The tops of the two elevator light curtains (3) are fixedly mounted with marking lights (6), which emit colored warning lights.

4. The elevator light curtain that is easy to install according to claim 3, characterized in that: When the brush plate (5) slides upward and is placed in an initial state, it blocks the marking light (6).

5. The conveniently installed elevator light curtain according to claim 4, characterized in that: When the brush plate (5) blocks the marking light (6), the cleaning sponge (501) is in contact with the light-transmitting plate of the marking light (6) by squeezing and friction.

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