CN216072599U

CN216072599U - Elevator overload detection device

Info

Publication number: CN216072599U
Application number: CN202122022677.3U
Authority: CN
Inventors: 刘颖
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2022-03-18
Anticipated expiration: 2031-08-26

Abstract

The utility model discloses an elevator overload detection device, which comprises an elevator car, wherein four corners of the bottom end of the car are fixedly provided with buffering limiting springs, one limiting column is sleeved in the buffering limiting spring arranged at one corner of the bottom end of the car, pressure measuring columns are sleeved in the buffering limiting springs arranged at the other three corners of the bottom end of the car, the top ends of the pressure measuring columns are fixedly connected with the bottom end of the car, the lower ends of the three pressure measuring columns are respectively provided with a matched pressure sensor, the bottom ends of the three pressure sensors are fixedly provided with a fixed frame, the fixed frame is provided with a limiting fixing mechanism, the bottom end of the fixed frame is fixedly provided with a controller, the side wall of the car is provided with a voice alarm, two sides of the car are fixedly provided with a pair of symmetrical fixed strips, and the bottom ends of the pair of fixed strips are fixedly provided with a protection plate. The utility model can play a role in fixing and protecting when the elevator is overloaded for a period of time and is still overloaded continuously, and effectively improves the operation efficiency of the elevator in a special bearing state.

Description

Elevator overload detection device

Technical Field

The utility model relates to the technical field of elevator overload, in particular to an elevator overload detection device.

Background

The elevator is a permanent transportation device which serves a plurality of specific floors in a building, the lift car of the elevator runs on at least two rows of rigid rail motion devices which are vertical to the horizontal plane or have an inclination angle smaller than 15 degrees with a plumb line, the most common elevator comprises a cargo lift and a common elevator, and after the cargo lift and the elevator are overloaded, the elevator can be directly transported to a specified floor reached by internal personnel in the transportation process without stopping in the midway;

among the various accessories of elevators, the elevator overload protection device is an important protection device for elevators, which is generally arranged at the bottom of a car. The elevator overload protection function is very important for ensuring the personal safety of elevator passengers, goods transported by the elevator, the safety of elevator equipment and the like;

however, the existing elevator overload detection device generally only sends a signal to enable the elevator not to run and not to close the door when the elevator is overloaded, and a mechanical protection device is not used for preventing the elevator from falling down, if the weight of the elevator car is overlarge instantly, or the bearing capacity in the elevator car is not reduced all the time after the elevator car is overloaded, danger is easily caused, and the existing overload detection device cannot run after the elevator car is overloaded, but can stop when meeting a floor under the condition that the elevator car is not fully loaded but can not take one person any more, so that the bearing efficiency and the user time are influenced.

Therefore, an elevator overload detection device is provided to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides an elevator overload detection device.

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

the utility model provides an elevator overload detection device, includes elevator car, its characterized in that, car bottom four corners is all fixed to be equipped with buffering spacing spring, the spacing spring endotheca of the wherein one corner setting of car bottom is equipped with the spacing post, all overlap in the buffering spacing spring that all the other triangles in car bottom set up and be equipped with the pressure measurement post, pressure measurement capital end and car bottom end fixed connection, it is three the pressure measurement post lower extreme all is equipped with assorted pressure sensor, it is three the fixed mount that is equipped with of pressure sensor bottom, be equipped with spacing fixed establishment on the mount, the fixed controller that is equipped with in mount bottom, be equipped with voice alarm on the car lateral wall, the fixed strip that is equipped with a pair of symmetry in car both sides, it is a pair of the fixed strip bottom mounting is equipped with the protection shield.

Preferably, a circular arc column is arranged at one corner of the car, a cavity is formed in the circular arc column, a controller is arranged in the circular arc column, a limiting column is arranged in the cavity formed in the circular arc column, a contact block is fixedly arranged at the top end of the limiting column, and a control switch is fixedly arranged at the bottom end of the controller.

Preferably, an observation opening is formed in the side wall of the circular arc column, and a protective glass cover is fixedly arranged on the observation opening.

Preferably, the outer side of the observation opening is provided with scale marks.

Preferably, spacing fixed establishment includes the spacing fixed plate of a pair of rotational symmetry's L type, and is a pair of all rotate on the spacing fixed plate and be equipped with first axis of rotation, a plurality of tooth's sockets have been seted up on first axis of rotation top, first axis of rotation bottom is rotated with the mount and is connected, and is a pair of the cover is equipped with the rotating chain in first axis of rotation, the rotating chain middle part is rotated and is equipped with the second axis of rotation, a plurality of tooth's sockets have also been seted up to second axis of rotation upper end, the mount is run through to the second axis of rotation, second axis of rotation bottom is rotated and is equipped with servo motor, servo motor and mount bottom fixed connection, the fixed connecting wire that is equipped with between servo motor and the controller.

Preferably, the fixed slots matched with the limiting fixed plates are fixedly arranged on the crossed side of the floor slab above the second floor and the elevator and the shaft on the back of the elevator.

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

through the spacing post that sets up, when the car has got into passenger goods, produce pressure, when this pressure has not reached full load standard, but add weight when will overloading again, the contact block on spacing post top touches with the control switch on the controller this moment, make the elevator not stop at the floor when operation and not getting off, useless floor stop time has been reduced, elevator operating efficiency has been improved, through the spacing fixed establishment who sets up, under the overload condition, send out in a period after the early warning but when nobody gets off the elevator always, then trigger spacing fixed establishment, make spacing fixed plate fixed with the fixed slot that it matches, play and make the car can not glide and protect fixed effect, make the passenger can audio-visually observe the remaining bearing amount of elevator through setting up the observation mouth on the circular arc post, reduce the time of waiting for the unnecessary elevator test of passenger.

Drawings

Fig. 1 is a perspective view of an elevator overload detecting apparatus according to the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a schematic structural view of the limiting and fixing mechanism.

In the figure: 1 car, 2 buffering spacing springs, 3 spacing posts, 4 pressure measuring posts, 5 pressure sensors, 6 fixed frames, 7 spacing fixed mechanisms, 8 controllers, 9 voice alarms, 10 arc posts, 11 controllers, 12 contact blocks, 13 control switches, 14 observation ports, 15 fixed strips, 16 spacing fixed plates, 17 first rotating shafts, 18 rotating chains, 19 second rotating shafts and 20 servo motors.

Detailed Description

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

Referring to fig. 1-3, an elevator overload detection device comprises an elevator car 1, four corners of the bottom end of the car 1 are fixedly provided with buffering limiting springs 2 for bearing the bearing pressure of the car 1, a limiting column 3 is sleeved in the buffering limiting spring 2 arranged at one corner of the bottom end of the car 1, the limiting column 3 extends into the car 1, pressure measuring columns 4 are sleeved in the buffering limiting springs 2 arranged at the other three corners of the bottom end of the car 1, the top ends of the pressure measuring columns 4 are fixedly connected with the bottom end of the car 1, the lower ends of the three pressure measuring columns 4 are respectively provided with a matched pressure sensor 5, the pressure measuring columns 4 are butted with the pressure sensors 5 after the buffering limiting springs 2 reach a threshold value, so as to be transmitted to subsequent control components of the elevator, the bottom ends of the three pressure sensors 5 are fixedly provided with a fixing frame 6, the bottom ends of the limiting columns 3 are fixedly connected with the fixing frame 6, and a limiting fixing mechanism 7 is arranged on the fixing frame 6, the bottom end of the fixed frame 6 is fixedly provided with a controller 8, the three pressure sensors 5 are all connected with the controller 8 through circuits and are used for stopping the elevator from running after the pressure sensors 5 are stressed, the elevator door is fixedly opened, the side wall of the elevator car 1 is provided with a voice alarm 9, after the car 1 is overloaded, the alarm is given out through the control of the control instrument 8, a pair of symmetrical fixing strips 15 are fixedly arranged at the two sides of the car 1 and used for fixing the car 1 and the upper and lower parts thereof, a protecting plate is fixedly arranged at the bottom ends of the pair of fixing strips 15 and used for protecting the parts at the bottom of the car 1, three pressure sensors 5 are arranged for the purpose of, meanwhile, whether the bottom of the lift car 1 is evenly stressed can be detected, an alarm can be given out to stop the operation when one pressure sensor 5 receives the stress, meanwhile, the voice edited by people can be given out to inform passengers in the lift car 1 of scattered riding, thereby avoiding damage to the elevator in long-term operation due to excessive pressure on the car 1 side for a long time.

1 one corner of car is equipped with circular arc post 10, be used for the removal of protection and restriction spacing post 3, establish the cavity in the circular arc post 10, be equipped with controller 11 in the circular arc post 10, threshold value through setting up the controller, this threshold value is artificial can set for how much weight reachs the full-load value of elevator more, thereby after reaching this threshold value, before the elevator does not get off the people stop between the floor, spacing post 3 sets up in the cavity of establishing in

circular arc post

10, 3 fixed contact blocks 12 that are equipped with in top of spacing post, controller 11 bottom mounting is equipped with control switch 13, through the butt joint of contact blocks 12 with control switch 13, make controller 11 stop the command of stopping between the floor.

An observation opening 14 is formed in the side wall of the arc column 10 and used for enabling passengers to visually see the remaining carrying amount of the elevator and reducing the time for waiting for unnecessary elevator test of the passengers, and a protective glass cover is fixedly arranged on the observation opening and used for protecting internal mechanisms and observing internal amount.

The outside of the observation port 14 is provided with scale marks. So that the passengers can more visually observe the remaining capacity of the elevator.

The limiting and fixing mechanism 7 comprises a pair of rotationally symmetrical L-shaped limiting and fixing plates 16, the L-shaped limiting and fixing plates 16 are used for fixing the elevator without reducing the bearing capacity in the car 1 after the elevator is overloaded, the L-shaped limiting and fixing plates 16 can be more stably fixed in shape after being fixed, the fixing plates 16 are arranged in the fixing frame 6, grooves matched with the rotating paths of the limiting and fixing plates 16 are formed in the fixing frame 6, first rotating shafts 17 are fixedly arranged on the limiting and fixing plates 16 and used for rotating the limiting and fixing plates 16 to extend out of the fixing frame 6, the first rotating shafts 17 are rotatably connected with the fixing frame 6 from top to bottom, a plurality of tooth sockets are formed in the top ends of the first rotating shafts 17, a rotating chain 18 is sleeved on the first rotating shafts 17, a plurality of rotating teeth are fixedly arranged on the inner wall of the rotating chain 18, and the top ends of the first rotating shafts 17 are meshed with the inner wall of the rotating chain 18, the middle part of the rotating chain 18 is rotatably provided with a second rotating shaft 19, a plurality of tooth sockets are also formed in the upper end of the second rotating shaft 19, the upper end of the second rotating shaft 19 is meshed with the inner wall of the rotating chain 18, the second rotating shaft 19 penetrates through the fixing frame 6, a groove matched with the rotating chain 18 and the second rotating shaft 19 is formed in the fixing frame 6, the top end of the second rotating shaft 19 is rotatably connected with the top end of the groove, the bottom end of the second rotating shaft 19 is rotatably provided with a servo motor 20, the servo motor 20 can rotate forwards and backwards, the limiting fixing plate 16 is driven to rotate out of and rotate into the groove of the fixing frame 6, the servo motor 20 is fixedly connected with the bottom end of the fixing frame 6, a connecting wire is fixedly arranged between the servo motor 20 and the controller 8, and the servo motor 20 is controlled by the controller 8 to rotate out and fix the limiting fixing plate 16 after the alarm is not stopped when the servo motor 20 is overloaded.

The crossing one side of floor and elevator between the floor more than the second floor and the well at the elevator back all fixedly set up with spacing fixed plate 16 assorted fixed slot for make spacing fixed plate 16 stretch into in the fixed slot and fix car 1.

The working steps of the elevator overload detection device are as follows:

when the elevator runs, the buffering limit spring 2 is gradually compressed when the elevator car 1 continuously gets on people, when the pressure measuring column 4 is in contact with the pressure sensor 5, after the pressure sensor 5 senses overload information, the control instrument 8 stops the operation of the car 1 and opens the car door, and controls the voice alarm 9 to give an alarm, when the overload state is not released in a certain time, the limit fixing mechanism 7 is operated by the controller 8, the pair of limit fixing plates 16 are rotated out to be in butt joint with the matched fixing grooves by the servo motor 20, when passengers in the elevator car 1 are not overloaded and fully loaded but can not be added, the contact block 12 arranged at the top end of the limiting column 3 is butted with the control switch 13 arranged at the bottom end of the controller 11, so that the elevator does not stop between floors under the condition that the passengers are not taken down in the subsequent operation.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. An elevator overload detection device comprises an elevator car (1) and is characterized in that four corners of the bottom of the car (1) are fixedly provided with buffering limiting springs (2), one corner of the bottom of the car (1) is provided with a limiting column (3) in a sleeved mode, pressure measuring columns (4) are arranged in the buffering limiting springs (2) in the rest triangular modes of the bottom of the car (1) in a sleeved mode, the top ends of the pressure measuring columns (4) are fixedly connected with the bottom of the car (1), the lower ends of the three pressure measuring columns (4) are provided with matched pressure sensors (5), the bottom ends of the three pressure sensors (5) are fixedly provided with fixing frames (6), the fixing frames (6) are provided with limiting fixing mechanisms (7), the bottom ends of the fixing frames (6) are fixedly provided with a controller (8), and the side wall of the car (1) is provided with a voice alarm (9), the car (1) both sides are fixed and are equipped with a pair of symmetrical fixed strip (15), and are a pair of fixed strip (15) bottom mounting is equipped with the protection shield.

2. The elevator overload detection device according to claim 1, wherein an arc column (10) is arranged at one corner of the car (1), a cavity is formed in the arc column (10), a controller (11) is arranged in the arc column (10), the limiting column (3) is arranged in the cavity formed in the arc column (10), a contact block (12) is fixedly arranged at the top end of the limiting column (3), and a control switch (13) is fixedly arranged at the bottom end of the controller (11).

3. The elevator overload detection device according to claim 2, wherein the arc column (10) has an observation opening (14) formed in a side wall thereof, and a protective glass cover is fixed to the observation opening.

4. An elevator overload detecting device according to claim 3, wherein scale marks are provided outside the observation opening (14).

5. The elevator overload detection device according to any one of claims 1 to 4, wherein the limiting fixing mechanism (7) includes a pair of rotationally symmetric L-shaped limiting fixing plates (16), a first rotating shaft (17) is rotatably disposed on each of the pair of limiting fixing plates (16), a plurality of tooth sockets are formed at the top end of the first rotating shaft (17), the bottom end of the first rotating shaft (17) is rotatably connected with the fixed frame (6), a rotating chain (18) is sleeved on each of the pair of first rotating shafts (17), a second rotating shaft (19) is rotatably disposed in the middle of the rotating chain (18), a plurality of tooth sockets are formed at the upper end of the second rotating shaft (19), the second rotating shaft (19) penetrates through the fixed frame (6), a servo motor (20) is rotatably disposed at the bottom end of the second rotating shaft (19), and the servo motor (20) is fixedly connected with the bottom end of the fixed frame (6), and a connecting wire is fixedly arranged between the servo motor (20) and the controller (8).

6. The elevator overload detection device of claim 5, wherein fixing grooves matched with the limiting fixing plates (16) are fixedly formed in the crossing side of the floor slab above the second floor and the elevator and in the shaft on the back of the elevator.