CN218619720U

CN218619720U - Elevator door leaf clearance measurement detection device

Info

Publication number: CN218619720U
Application number: CN202221510262.9U
Authority: CN
Inventors: 黄海涛; 张智勇; 谈剑峰; 赵勇; 韦坚; 王燕
Original assignee: Nanning Detai Elevator Manufacturing Co ltd; GUANGXI QUALITY TECHNOLOGY ENGINEERING SCHOOL
Current assignee: Nanning Detai Elevator Manufacturing Co ltd; GUANGXI QUALITY TECHNOLOGY ENGINEERING SCHOOL
Priority date: 2022-06-15
Filing date: 2022-06-15
Publication date: 2023-03-14
Anticipated expiration: 2032-06-15

Abstract

The utility model belongs to the elevator field, especially, elevator door leaf clearance measurement detection device ignores to present maintenance personnel and detects this inspection work with the ruler, adopts the range estimation more, and the door leaf freely hangs perpendicularly, when not having the exogenic effect, and the range estimation just easily is the problem of hidden danger neglecting, proposes following scheme now, and it includes car, door frame and sedan-chair door leaf, the one side at the car is fixed to the door frame, sedan-chair door leaf sets up on the car, the installation cavity has been seted up to the inside of door frame, and the inside of installation cavity is provided with the detection module who is used for detecting the interval, the utility model discloses in, through setting up detection module, interval between spaced detection sedan-chair door leaf and the door frame, when the interval is too big, then can report to the police for remind the staff to overhaul, the area of riser can promote detection range simultaneously, avoids sedan-chair door leaf to appear slight slope, leads to the testing result inaccurate.

Description

Elevator door leaf clearance measurement detection device

Technical Field

The utility model relates to an elevator technical field especially relates to an elevator door leaf clearance measurement detection device.

Background

The elevator door leaf is an important component device of the elevator, is a gateway for passengers or goods to enter and exit the elevator, and is also a closing mechanism for a car and a merge way. The size of the clearance of the mechanism is inseparable from the safe operation of the elevator, 8.6.3 in the safety specification GB7588-2003 of elevator manufacture and installation requires that the clearance of the passenger elevator is not more than 6mm, and the door leaf is a frequently occurring region of elevator accidents, such as accidents that a hand clip and foreign bodies stretch into a hoistway. Therefore, the gaps between the door leaf and the door column are important for guaranteeing safe operation of the elevator, the safe operation of the elevator is closely related to the size of the gap between the elevator door leaf, and a tight elevator door leaf is a precondition for guaranteeing safe operation of the elevator and improving the conveying efficiency of the elevator.

The traditional detection method is that an inspector visually inspects or measures with a ruler (as shown in fig. 9), in reality, a maintenance worker often ignores the inspection work with the ruler, the visual inspection is mostly adopted, a door leaf is freely and vertically hung, and when no external force is applied, the visual inspection is easy to ignore hidden dangers. When factors such as door guide shoe wearing and tearing caused the actual clearance too big in the use, just probably form the potential safety hazard that the foreign matter passes through the gap, the child finger of common report is pressed from both sides the injury accident, mostly is this hidden danger and causes. It is known that there is no related technology for elevator in use at home and abroad in this field to prevent, so we propose a gap measuring and detecting device for elevator door leaf to solve the above mentioned problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the maintenance personnel that exist among the prior art and neglecting to detect this inspection work with the ruler, adopt the range estimation more, and the door leaf freely hangs perpendicularly, when not having the exogenic action, the range estimation is just neglected the hidden danger easily. When the actual gap is too large due to factors such as abrasion of the door guide shoe in use, the defect of potential safety hazard that foreign matters pass through the gap is possibly formed, and the elevator door leaf gap measuring and detecting device is provided.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a gap measurement and detection device for elevator door leaves comprises a lift car, a door frame and a door leaf, wherein the door frame is fixed on one side of the lift car, the door leaf is arranged on the lift car, an installation cavity is formed in the door frame, and a detection assembly for detecting a gap is arranged in the installation cavity;

one side of door frame articulates there is the access door, one side of access door is provided with the protection subassembly that is used for avoiding the mistake to touch.

Preferably, the detecting component includes the U template of fixed mounting at installation cavity bottom inner wall, one side fixed mounting of U template has step motor, step motor's output shaft fixed mounting has the lead screw, the one end of lead screw is connected with one side inner wall rotation of U template, the outer wall threaded connection of lead screw has screw-nut, one side fixed mounting of screw-nut has the ring, one side symmetry fixed mounting of ring has two round bars, and the one end of round bar runs through the U template and extends to one side of U template, and the one end fixed mounting of two round bars has same push rod, the one end of push rod runs through the door frame, the top fixedly connected with lug of push rod, the one side inner wall fixedly connected with of installation cavity is with the pressure sensor that the lug cooperation was used, the bottom inner wall of installation cavity is provided with binding post row, controller and pressure sensor and step motor electric connection for detect the interval, avoid the interval too big emergence accident.

Preferably, the protection subassembly includes the first solid fixed ring of fixed connection in access door one side, the solid fixed ring of one side fixedly connected with second of door frame, be provided with same tool to lock on the solid fixed ring of first solid fixed ring and second for avoid non-staff's mistake to touch, lead to the device to damage.

Preferably, a round hole is formed in one side of the access door, a filter screen is arranged inside the round hole and used for ventilation, and therefore the temperature of the internal device is prevented from being too high.

Preferably, a groove is formed in one side of the door frame, a vertical plate matched with the groove is fixedly connected to one end of the push rod, the detection area is increased, and the situation that the car door leaf slightly inclines to cause inaccurate detection results is avoided.

Preferably, the top fixed mounting of push rod has the reinforcing plate, one side of riser is provided with the mounting groove with reinforcing plate and push rod looks adaptation, the riser passes through a plurality of screws and reinforcing plate and push rod fixed connection.

Preferably, the distance between the car door leaf and the vertical plate is 6mm, so that the device is guaranteed to meet the specification.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the controller starts the stepping motor, an output shaft of the stepping motor drives the screw rod to rotate, the screw rod drives the screw rod nut to translate, the screw rod nut drives the circular ring to translate, the circular ring drives the push rod to translate, the push rod drives the projection and the vertical plate to move transversely, and the vertical plate moves to one side of the car door leaf;

2. if distance between sedan-chair door leaf and the riser is less than when specified value (6 mm), the lug can not touch pressure sensor, the riser is contradicted with sedan-chair door leaf always this moment, step motor can take place the overload, then the overload warning can take place for the controller, controller control step motor reversal, reset, can know the clearance and meet the demands, if sedan-chair door leaf and riser are greater than when the specified value, lug touch pressure sensor, pressure sensor transmits alarm signal for the controller, the controller sends the police dispatch newspaper, be used for in time overhauing, avoid appearing the accident, the area of riser can promote detection range, avoid sedan-chair door leaf slight slope to appear, lead to the testing result inaccurate.

The utility model discloses in, through setting up the determine module, there is the interval between spaced detection sedan-chair door leaf and the door frame, when the interval is too big, then can report to the police for remind the staff to overhaul, the area of riser can promote detection range simultaneously, avoids sedan-chair door leaf to appear slightly inclining, leads to the testing result inaccurate, convenient to use.

Drawings

Fig. 1 is a schematic three-dimensional structure diagram of an elevator door leaf gap measurement and detection device provided by the present invention;

fig. 2 is a schematic three-dimensional structure diagram of the car of the present invention;

fig. 3 is a schematic three-dimensional sectional structure of the middle door frame of the present invention;

fig. 4 is a schematic cross-sectional view of another view of the door frame of the present invention;

FIG. 5 is a top view of FIG. 4;

FIG. 6 is a schematic view of the connection structure of the vertical plate and the push rod of the present invention;

FIG. 7 is an exploded view of a part of the structure of the present invention;

fig. 8 is a schematic view of a part of the present invention;

fig. 9 is a diagram showing a gap measurement using a ruler in the prior art.

In the figure: 1. a car; 2. a door frame; 3. a screw; 4. a car door leaf; 5. a lock; 6. a vertical plate; 7. A mounting cavity; 8. an access door; 9. filtering with a screen; 10. a circular hole; 11. a first retaining ring; 12. a second retaining ring; 13. a pressure sensor; 14. a push rod; 15. a bump; 16. a stepping motor; 17. a terminal block; 18. a controller; 19. a switch; 20. a U-shaped plate; 21. a groove; 22. a screw rod; 23. a feed screw nut; 24. a circular ring; 25. a round bar; 26. a reinforcing plate; 27. and (4) mounting the groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, an elevator door leaf gap measurement detection device comprises a car 1, a door frame 2 and a car door leaf 4, wherein the door frame 2 is fixed on one side of the car 1, the car door leaf 4 is arranged on the car 1, an installation cavity 7 is formed in the door frame 2, and a detection assembly for detecting a gap is arranged in the installation cavity 7.

Example one

Referring to fig. 2-6 and 8, in this embodiment, the detecting assembly includes a U-shaped plate 20 fixedly installed on the inner wall of the bottom of the installation cavity 7, a stepping motor 16 is fixedly installed on one side of the U-shaped plate 20, a lead screw 22 is fixedly installed on an output shaft of the stepping motor 16, one end of the lead screw 22 is rotatably connected with the inner wall of one side of the U-shaped plate 20, a lead screw nut 23 is connected with the outer wall of the lead screw 22 through a thread, a ring 24 is fixedly installed on one side of the lead screw nut 23, two round rods 25 are symmetrically and fixedly installed on one side of the ring 24, one end of each round rod 25 penetrates through the U-shaped plate 20 and extends to one side of the U-shaped plate 20, one end of each round rod 25 is fixedly installed with the same push rod 14, one end of each push rod 14 penetrates through the door frame 2, and a bump 15 is fixedly connected to the top of each push rod 14, one side inner wall fixedly connected with of installation cavity 7 and the pressure sensor 13 of lug 15 cooperation use, the bottom inner wall of installation cavity 7 is provided with binding post row 17, controller 18 and switch 19, the power cord passes through binding post row 17 and switch 19 and is connected with controller 18, controller 18 and pressure sensor 13 and step motor 16 electric connection, and be provided with photoelectric sensor on the U template 20, when ring 24 removes to normal position (initial position), can trigger photoelectric sensor, photoelectric sensor gives controller 18 transmission signal that targets in place, be used for detecting the interval, avoid the too big unexpected condition that appears in interval, wherein controller 18's model can be closed loop step motor driver DE57. (ii) a

Further, one side of door frame 2 articulates there is access door 8, one side of access door 8 is provided with the protection subassembly that is used for avoiding the mistake to touch, the protection subassembly includes the solid fixed ring 11 of fixed connection in access door 8 one side, the solid fixed ring 12 of one side fixedly connected with second of door frame 2, be provided with same tool to lock 5 on the solid fixed ring 11 of first fixed ring and the solid fixed ring 12 of second, be used for avoiding the non-staff mistake to touch, lead to the device to damage, round hole 10 has been seted up to one side of access door 8, the inside of round hole 10 is provided with filter screen 9, be used for ventilating, and then avoid the interior device high temperature.

Example two

Referring to fig. 7 to 8, in this embodiment, a groove 21 is formed in one side of the door frame 2, and a vertical plate 6 used in cooperation with the groove 21 is fixedly connected to one end of the push rod 14, so that the detection area is increased, and the car door leaf 4 is prevented from being slightly inclined, which results in inaccurate detection results.

Further, the top fixed mounting of push rod 14 has reinforcing plate 26, and one side of riser 6 is provided with the mounting groove 27 with reinforcing plate 26 and push rod 14 looks adaptation, and riser 6 is through a plurality of screws 3 and reinforcing plate 26 and push rod 14 fixed connection, and sedan-chair door leaf 4 is 6mm with the interval of riser 6, guarantees that the device accords with the standard.

The working principle is as follows: when the elevator door is used, the controller 18 starts the stepping motor 16, an output shaft of the stepping motor 16 drives the screw rod 22 to rotate, the screw rod 22 drives the screw rod nut 23 to translate, the screw rod nut 23 drives the circular ring 24 to translate, the circular ring 24 drives the circular rod 25 to translate, the circular rod 25 can drive the push rod 14 to translate, the push rod 14 drives the lug 15 and the vertical plate 6 to transversely move, the vertical plate 6 moves to one side of the elevator door leaf 4, if the distance between the elevator door leaf 4 and the vertical plate 6 is smaller than a specified value (6 mm), the lug 15 cannot touch the pressure sensor 13, the vertical plate 6 is always abutted against the elevator door leaf 4 at the moment, the stepping motor 16 can overload, the controller 18 controls the stepping motor 16 to reversely rotate and reset, the gap can be known to meet requirements, if the elevator door leaf 4 and the vertical plate 6 are larger than the specified value, the lug 15 touches the pressure sensor 13, the pressure sensor 13 transmits an alarm signal to the controller 18, the controller 18 gives an alarm, the timely maintenance is used for avoiding accidents, the area of the riser 6 can increase the detection range, the inclination of the elevator door leaf 4 is avoided, and the detection result is inaccurate.

However, as is well known to those skilled in the art, the working principle and wiring method of the stepping motor 16, the controller 18, the switch 19 and the pressure sensor 13 are common and are conventional means or common knowledge, and will not be described herein, and those skilled in the art can make any choice according to their needs or convenience.

The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an elevator door leaf clearance measurement detection device, includes car (1), door frame (2) and sedan-chair door leaf (4), one side at car (1) is fixed in door frame (2), sedan-chair door leaf (4) set up on car (1), its characterized in that, installation cavity (7) have been seted up to the inside of door frame (2), and the inside of installation cavity (7) is provided with the determine module who is used for detecting the interval.

2. The elevator door leaf gap measurement detecting device according to claim 1, the detection assembly comprises a U-shaped plate (20) fixedly arranged on the inner wall of the bottom of the installation cavity (7), a stepping motor (16) is fixedly arranged on one side of the U-shaped plate (20), a screw rod (22) is fixedly arranged on an output shaft of the stepping motor (16), one end of the screw rod (22) is rotationally connected with the inner wall of one side of the U-shaped plate (20), the outer wall of the screw rod (22) is connected with a screw rod nut (23) in a threaded manner, a circular ring (24) is fixedly arranged on one side of the feed screw nut (23), two round rods (25) are symmetrically and fixedly arranged on one side of the circular ring (24), one end of each round rod (25) penetrates through the U-shaped plate (20) and extends to one side of the U-shaped plate (20), one end of each round rod (25) is fixedly provided with the same push rod (14), one end of the push rod (14) penetrates through the door frame (2), the top of the push rod (14) is fixedly connected with a convex block (15), the inner wall of one side of the mounting cavity (7) is fixedly connected with a pressure sensor (13) which is matched with the convex block (15) for use, the inner wall of the bottom of the mounting cavity (7) is provided with a wiring terminal block (17), a controller (18) and a switch (19), the controller (18) is electrically connected with the pressure sensor (13) and the stepping motor (16).

3. The elevator door leaf gap measurement detection device according to any one of claims 1 or 2, characterized by further comprising an access door (8) hinged to one side of the door frame (2), wherein one side of the access door (8) is provided with a protection component for avoiding false touch.

4. The elevator door leaf gap measurement and detection device according to claim 3, characterized in that the protection assembly comprises a first fixing ring (11) fixedly connected to one side of the access door (8), a second fixing ring (12) fixedly connected to one side of the door frame (2), and the same lock (5) is arranged on the first fixing ring (11) and the second fixing ring (12).

5. The elevator door leaf gap measuring and detecting device according to claim 4, characterized in that a round hole (10) is formed in one side of the access door (8), and a filter screen (9) is arranged inside the round hole (10).

6. The device for measuring and detecting the gap between the door leaves of the elevator as claimed in claim 2, wherein a groove (21) is formed in one side of the door frame (2), and a vertical plate (6) matched with the groove (21) is fixedly connected to one end of the push rod (14).

7. The elevator door leaf gap measurement and detection device according to claim 6, wherein a reinforcing plate (26) is fixedly mounted on the top of the push rod (14), a mounting groove (27) matched with the reinforcing plate (26) and the push rod (14) is formed in one side of the vertical plate (6), and the vertical plate (6) is fixedly connected with the reinforcing plate (26) and the push rod (14) through a plurality of screws (3).

8. The device for measuring and detecting the gap between the door leaf of the elevator as claimed in any one of claims 6 or 7, wherein the distance between the door leaf (4) and the vertical plate (6) is 6mm.