Elevator door safety monitoring device

Abstract

The utility model is suitable for the technical field of elevator safety, and provides an elevator door safety monitoring device which comprises a first shell fixedly installed on an elevator door, a plurality of second shells are fixedly installed on the first shell, and connecting blocks are installed on the second shells in a sliding mode. The same elevator light curtain body used for monitoring the state of an elevator door is fixedly installed on the multiple connecting blocks, and clamping holes are formed in the multiple connecting blocks. According to the elevator door safety monitoring device provided by the scheme, the problem that an existing elevator light curtain used for monitoring the safety of the elevator door is inconvenient to maintain and replace due to the fact that disassembly is inconvenient is solved.

Description

Technical Field

[0001] This utility model belongs to the field of elevator safety technology, and in particular relates to an elevator door safety monitoring device. Background Technology

[0002] An elevator door safety monitoring device is a device that uses sensor technology to monitor the status of elevator doors in real time. For example, an elevator light curtain consists of a transmitter and a receiver. The transmitter emits multiple infrared beams, which form a dense light curtain in the elevator door area. The receiver is responsible for receiving these infrared beams. When a passenger or object enters the elevator door area, it will block some or all of the infrared beams, causing the signal received by the receiver to change. After detecting this signal change, the elevator control system will immediately trigger the elevator door to reopen, thereby avoiding the occurrence of pinching accidents and ensuring passenger safety.

[0003] However, most existing elevator light curtains are fixed to the elevator door with bolts. Although this fixing method is simple, it brings many inconveniences in the subsequent maintenance and replacement process. When the operator is to carry out maintenance or replacement, he / she needs to use tools such as screwdrivers to remove a large number of bolts one by one before he / she can remove the elevator light curtain from the elevator door. Since there are usually a lot of bolts, it will waste a lot of the operator's time and energy, and the disassembly is quite inconvenient. Utility Model Content

[0004] This utility model provides an elevator door safety monitoring device, which aims to solve the problem mentioned in the background art that the existing elevator light curtains used to monitor elevator door safety are inconvenient to disassemble, thus causing inconvenience to the maintenance and replacement of the elevator light curtains.

[0005] To solve the above problems, this utility model is implemented as follows: an elevator door safety monitoring device includes: a first housing fixedly installed on an elevator door; a plurality of second housings fixedly installed on the first housing; a connecting block slidably installed on each of the plurality of second housings; a single elevator light curtain body for monitoring the elevator door status fixedly installed on each of the plurality of connecting blocks; and a locking hole provided on each of the plurality of connecting blocks; a plurality of sliding rods fixedly installed on the inner wall of the first housing; a connecting plate slidably installed on each of the plurality of sliding rods; a first rack welded to each of the plurality of connecting plates; an mounting plate fixedly installed on each of the plurality of first racks; and a locking block fixedly installed on each of the plurality of mounting plates, the locking blocks respectively fitting into the plurality of locking holes; a rotating shaft rotatably installed on the first housing; a plurality of first gears fixedly sleeved on the rotating shaft; and a pulling mechanism assembled on the first housing for rotating the rotating shaft.

[0006] Preferably, the pulling mechanism includes: a pull rod slidably mounted on the first housing, a baffle welded onto the pull rod, and a second rack fixedly mounted on the baffle; a plurality of springs fixedly mounted on the baffle, one end of each of the plurality of springs being fixedly connected to one side inner wall of the first housing; and a second gear fixedly sleeved on the rotating shaft, the second gear meshing with the second rack.

[0007] Preferably, a limiting plate is fixedly installed on the second rack, and a limiting rod is slidably installed on the limiting plate, with one end of the limiting rod being fixedly connected to one side inner wall of the first housing.

[0008] Preferably, a pull plate is rotatably mounted on one end of the pull rod, and the pull plate is rectangular.

[0009] Preferably, each of the second housings has a groove on its inner wall, and a slider is slidably mounted on the inner wall of each groove, with each slider being fixedly connected to a mounting plate.

[0010] Preferably, all of the springs are made of stainless steel, and the first housing is configured in a cross shape.

[0011] Preferably, a connecting seat is fixedly installed on one side of the first housing, and two limiting grooves are formed on the connecting seat, both of which are adapted to the pull plate.

[0012] Compared with related technologies, the elevator door safety monitoring device provided by this utility model has the following beneficial effects:

[0013] Compared with existing technologies, the elevator door safety monitoring device provided in this solution uses a pulling mechanism to drive a rotating shaft. The rotating shaft drives multiple first gears to rotate, which in turn drive multiple first racks to move. At the same time, multiple connecting plates connected to the multiple first racks slide on multiple slide rods, and multiple mounting plates connected to the multiple first racks also drive multiple locking blocks to move until the multiple locking blocks disengage from the locking holes on the multiple connecting blocks. After disengagement, the elevator light curtain body can be lifted upwards, causing the multiple connecting blocks on the elevator light curtain body to disengage from the second housing. After disengagement, the disassembly of the elevator light curtain body is completed. By performing the reverse operation, the installation of the elevator light curtain body can also be achieved quickly. The entire process does not require any tools; it only requires simply pulling or releasing the lever on the pulling mechanism. The operation is relatively simple, greatly reducing the operator's workload and improving work efficiency. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of an elevator door safety monitoring device provided by this utility model;

[0015] Figure 2for Figure 1 Schematic diagram of the enlarged structure of part A shown in FIG;

[0016] Figure 3 for Figure 1 Schematic diagram of the enlarged structure of part B shown in FIG.

[0017] Reference numerals in the attached drawings: 1. Elevator door; 2. First housing; 3. Second housing; 4. Connecting block; 5. Elevator light curtain body; 6. Sliding rod; 7. Connecting plate; 8. First rack; 9. Mounting plate; 10. Locking block; 11. Rotating shaft; 12. First gear; 13. Pull rod; 14. Baffle; 15. Second rack; 16. Spring; 17. Pull plate; 18. Second gear; 19. Limiting plate; 20. Limiting rod; 21. Connecting seat. Detailed Implementation

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings are used to distinguish different objects, not to describe a particular order; the terms "inner," "outer," "left," and "right" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0019] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0020] This utility model embodiment provides an elevator door safety monitoring device, such as... Figure 1-3As shown, the elevator door safety monitoring device includes: a first housing 2 fixedly installed on the elevator door 1; a plurality of second housings 3 fixedly installed on the first housing 2; a connecting block 4 slidably installed on each of the plurality of second housings 3; an elevator light curtain body 5 for monitoring the status of the elevator door 1 fixedly installed on each of the plurality of connecting blocks 4; and a locking hole provided on each of the plurality of connecting blocks 4; a plurality of sliding rods 6 fixedly installed on the inner wall of the first housing 2; a connecting plate 7 slidably installed on each of the plurality of sliding rods 6; a first rack 8 welded on each of the plurality of connecting plates 7; an mounting plate 9 fixedly installed on each of the plurality of first racks 8; and a locking block 10 fixedly installed on each of the plurality of mounting plates 9, the locking blocks 10 respectively being adapted to the plurality of locking holes; a rotating shaft 11 rotatably installed on the first housing 2; a plurality of first gears 12 fixedly sleeved on the rotating shaft 11; and a pulling mechanism assembled on the first housing 2 for rotating the rotating shaft 11.

[0021] It should be noted that the elevator light curtain body 5 (product model WEC0-917D) used to monitor the status of elevator door 1 is a mature existing technology, and its principle will not be described here.

[0022] In this embodiment, if the elevator light curtain body 5 needs to be repaired or replaced due to a malfunction during use, it is necessary to first remove the elevator light curtain body 5 from the elevator door 1. During removal, the operator needs to manually operate the pulling mechanism to make the pulling mechanism drive the rotating shaft 11 to rotate. The rotating shaft 11 will drive multiple first gears 12 to rotate, and the multiple first gears 12 will drive multiple first racks 8 to move. At this time, multiple connecting plates 7 connected to multiple first racks 8 will also slide on multiple slide rods 6, and multiple mounting plates 9 connected to multiple first racks 8 will also drive multiple locking blocks 10 to move until the multiple locking blocks 10 disengage from the locking holes on the multiple connecting blocks 4. After disengagement, the elevator light curtain body 5 can be lifted upwards, so that the multiple connecting blocks 4 on the elevator light curtain body 5 disengage from the second housing 3. After disengagement, the disassembly of the elevator light curtain body 5 is completed. The entire disassembly process does not require any tools, which can greatly reduce the operator's workload and improve work efficiency. By performing the opposite operation, the installation of the elevator light curtain body 5 can also be achieved quickly.

[0023] In a further preferred embodiment of the present invention, the pulling mechanism includes: a pull rod 13 slidably mounted on the first housing 2, a baffle 14 welded onto the pull rod 13, and a second rack 15 fixedly mounted on the baffle 14; a plurality of springs 16 fixedly mounted on the baffle 14, one end of each of the plurality of springs 16 being fixedly connected to one side inner wall of the first housing 2; and a second gear 18 fixedly sleeved on the rotating shaft 11, the second gear 18 meshing with the second rack 15.

[0024] In this embodiment, the pulling mechanism is used to rotate the rotating shaft 11. During operation, pulling the lever 13 outward will cause the baffle 14 to compress the spring 16. The baffle 14 will cause the second rack 15 to move. The second rack 15 will drive the rotating shaft 11 to rotate through the second gear 18, thereby causing multiple locking blocks 10 to disengage from multiple locking holes. When the lever 13 is released, the spring 16 will push the baffle 14 to move through its elasticity. The baffle 14 will drive the second rack 15 to move. At this time, the direction of movement is opposite to that before. Thus, the rotating shaft 11 can be reversed through the second gear 18, so that multiple locking blocks 10 can be re-inserted into multiple locking holes. The operation is relatively simple, requiring only pulling or releasing the lever 13.

[0025] In a further preferred embodiment of the present invention, a limiting plate 19 is fixedly installed on the second rack 15, and a limiting rod 20 is slidably installed on the limiting plate 19. One end of the limiting rod 20 is fixedly connected to one side inner wall of the first housing 2.

[0026] In this embodiment, the stability of the second rack 15 during movement can be improved by the cooperation of the limiting plate 19 and the limiting rod 20, so that the second rack 15 can better mesh with the second gear 18. When the second rack 15 moves, the limiting plate 19 connected to the second rack 15 will slide on the limiting rod 20.

[0027] In a further preferred embodiment of the present invention, a pull plate 17 is rotatably mounted on one end of the pull rod 13, and the pull plate 17 is rectangular.

[0028] In this embodiment, the rectangular pull plate 17 allows the operator to easily pull the pull rod 13 by hand.

[0029] In a further preferred embodiment of the present invention, a sliding groove is provided on the inner wall of each of the plurality of second housings 3, and a slider is slidably installed on the inner wall of each of the plurality of sliding grooves, and the plurality of sliders are respectively fixedly connected to the plurality of mounting plates 9.

[0030] In this embodiment, the stability of the mounting plate 9, the first rack 8 and the locking block 10 during movement can be improved by using the sliding groove and the slider in combination. When the mounting plate 9, the first rack 8 and the locking block 10 are moving, the slider connected to the mounting plate 9 will slide in the sliding groove at the same time.

[0031] In a further preferred embodiment of this utility model, all of the springs 16 are made of stainless steel, and the first housing 2 is configured in a cross shape.

[0032] In this embodiment, the stainless steel spring 16 has good durability and corrosion resistance, and a good service life.

[0033] In a further preferred embodiment of the present invention, a connecting seat 21 is fixedly installed on one side of the first housing 2, and two limiting grooves are provided on the connecting seat 21, both of which are adapted to the pull plate 17.

[0034] In this embodiment, the position of the pull plate 17 can be limited by the two limiting grooves on the connecting seat 21, such as... Figure 3 As shown, when not in use, the pull plate 17 can be fastened in the left limiting groove. Before pulling the pull plate 17, it is necessary to rotate the pull plate 17 upward to disengage it from the left locking groove. After disengagement, the pull plate 17 can be pulled to make the pulling mechanism run. After pulling, if you do not want the pull plate 17 to reset when you release it, you can rotate the pull plate 17 downward to fasten it in the right limiting groove. In this way, even if the operator releases the pull plate 17, the pull plate 17 will not automatically reset, which further facilitates the operator's disassembly of the elevator light curtain body 5.

[0035] In summary, compared with related technologies, this solution, through the use of a pulling mechanism, can drive the rotating shaft 11 to rotate. The rotating shaft 11 will drive multiple first gears 12 to rotate, and the multiple first gears 12 will drive multiple first racks 8 to move. At this time, multiple connecting plates 7 connected to the multiple first racks 8 will also slide on multiple slide rods 6, and multiple mounting plates 9 connected to the multiple first racks 8 will also drive multiple locking blocks 10 to move until the multiple locking blocks 10 disengage from the locking holes on the multiple connecting blocks 4. After disengagement, the elevator light curtain body 5 can be lifted upward, causing the multiple connecting blocks 4 on the elevator light curtain body 5 to disengage from the second housing 3. After disengagement, the disassembly of the elevator light curtain body 5 is completed. Through the reverse operation, the installation of the elevator light curtain body 5 can also be quickly achieved. The entire process does not require any tools; it only requires simply pulling or releasing the pull rod 13 on the pulling mechanism. The operation is relatively simple, which can greatly reduce the workload of the operator and improve work efficiency.

[0036] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.

[0037] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. An elevator door safety monitoring device, characterized in that, include: A first housing is fixedly installed on the elevator door. Multiple second housings are fixedly installed on the first housing. A connecting block is slidably installed on each of the multiple second housings. The same elevator light curtain body for monitoring the status of the elevator door is fixedly installed on each of the multiple connecting blocks. Each of the multiple connecting blocks has a locking hole. Multiple sliding rods are fixedly installed on the inner wall of the first housing. A connecting plate is slidably installed on each of the multiple sliding rods. A first rack is welded to each of the multiple connecting plates. An mounting plate is fixedly installed on each of the multiple first racks. A locking block is fixedly installed on each of the multiple mounting plates. Each of the multiple locking blocks is adapted to a multiple locking hole. A rotating shaft is rotatably mounted on the first housing, and a plurality of first gears are fixedly sleeved on the rotating shaft, with the plurality of first gears meshing with a plurality of first racks respectively; A pulling mechanism for rotating the shaft, mounted on the first housing.

2. The elevator door safety monitoring device as described in claim 1, characterized in that, The pulling mechanism includes: A pull rod is slidably mounted on the first housing, a baffle is welded onto the pull rod, and a second rack is fixedly mounted on the baffle; Multiple springs are fixedly installed on the baffle, and one end of each spring is fixedly connected to the inner wall of one side of the first housing. A second gear is fixedly sleeved on the rotating shaft, and the second gear meshes with the second rack.

3. The elevator door safety monitoring device as described in claim 2, characterized in that, A limiting plate is fixedly installed on the second rack, and a limiting rod is slidably installed on the limiting plate. One end of the limiting rod is fixedly connected to the inner wall of one side of the first housing.

4. The elevator door safety monitoring device as described in claim 2, characterized in that, A pull plate is rotatably mounted on one end of the pull rod, and the pull plate is rectangular.

5. The elevator door safety monitoring device as described in claim 1, characterized in that, Each of the second housings has a sliding groove on its inner wall, and a slider is slidably mounted on the inner wall of each of the sliding grooves. Each slider is fixedly connected to a mounting plate.

6. The elevator door safety monitoring device as described in claim 2, characterized in that, All of the springs are made of stainless steel, and the first housing is configured in a cross shape.

7. The elevator door safety monitoring device as described in claim 4, characterized in that, A connecting seat is fixedly installed on one side of the first housing. The connecting seat has two limiting grooves, both of which are adapted to the pull plate.

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