CN219429435U

CN219429435U - Protection device for elevator car

Info

Publication number: CN219429435U
Application number: CN202223219274.9U
Authority: CN
Inventors: 张锡勇
Original assignee: Tianjin Bochuang Elevator Parts Co ltd
Current assignee: Tianjin Bochuang Elevator Parts Co ltd
Priority date: 2022-12-02
Filing date: 2022-12-02
Publication date: 2023-07-28
Anticipated expiration: 2032-12-02

Abstract

The utility model relates to the technical field of elevators and discloses a protective device for an elevator car, which comprises an elevator car, wherein two ends of one side of the elevator car are movably provided with car doors, two ends of each car door positioned on one side are respectively provided with a detection groove, each group of detection grooves is movably provided with a squeezing block, and one side of each group of squeezing blocks is detachably provided with a first pressure sensor; the elevator car is positioned at the inner side of the elevator shaft, and a plurality of groups of baffle blocks which are distributed at equal intervals are fixedly arranged at the two sides of the inner part of the elevator shaft; the car bottom side demountable installation has the protection box, the inside movable mounting of protection box has two-way lead screw. The elevator car can drive the servo motor to drive the bidirectional screw rod to rotate, and the rotating bidirectional screw rod can push the two groups of the abutting plates to be matched with the stop blocks, so that the elevator car is supported, and the problems of door lock short circuit, elevator car overload, brake failure, gear box shaft breakage and the like are avoided, and accidents are caused by rapid sliding of the elevator car.

Description

Protection device for elevator car

Technical Field

The utility model relates to the technical field of elevators, in particular to a protective device for an elevator car.

Background

Currently, elevators are permanent transportation devices serving a number of specific floors within a building, the cars of which run in at least two columns of rigid orbital motion perpendicular to the horizontal or inclined at an angle of less than 15 ° to the plumb line.

When the elevator runs, the elevator stops at the elevator shaft to wait for the pedestrians to get in and out, so that the pedestrians can conveniently run in the floors.

However, when the elevator runs, the problems of door lock short circuit, car overload, band-type brake failure, gear box broken shaft and the like are likely to occur, so that the car can slide down quickly and accidents occur. For this reason, new solutions need to be designed to solve.

Disclosure of Invention

The utility model aims to provide a protective device for an elevator car, which solves the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the protection device for the elevator car comprises a car body, wherein car doors are movably arranged at two ends of one side of the car body, detection grooves are formed in two ends of the car door on one side, extrusion blocks are movably arranged in each detection groove, and a first pressure sensor is detachably arranged on one side of each extrusion block;

the elevator car is positioned at the inner side of the elevator shaft, and a plurality of groups of baffle blocks which are distributed at equal intervals are fixedly arranged at the two sides of the inner part of the elevator shaft;

the car bottom side is detachably provided with a protection box, a bidirectional screw rod is movably installed in the protection box, two sides of the bidirectional screw rod are screwed and connected with movable seats, the other sides of the two groups of movable seats are fixedly provided with retaining plates, and the two groups of retaining plates are respectively corresponding to the two groups of corresponding stop blocks;

the protection box is characterized in that a servo motor is detachably arranged on one side of the protection box, a driving output end of the servo motor is in transmission connection with a transmission shaft, and the other end of the transmission shaft is fixedly connected with one side of the bidirectional screw rod.

As an alternative scheme of this application technical scheme, group the inside one side of extrusion piece is all demountable installation has first spring, every group first spring opposite side all with the detection groove inner wall is dismantled, can carry out the forehead to the extrusion piece and cushion.

As an alternative scheme of this application technical scheme, the inside opposite side fixed mounting of protection box has the gag lever post, the gag lever post respectively with two sets of remove seat swing joint can withstand the board and carry out spacingly.

As an alternative scheme of this application technical scheme, every group the piston groove has all been seted up to butt plate one side, every group all swing joint has the piston rod in the piston groove, every group piston rod one side all demountable installation has the second pressure sensor, can be to the pressure detection that butt plate received.

As an alternative scheme of this application technical scheme, every group the piston rod outer wall has all cup jointed the second spring, every group the second spring both sides respectively with keep out board, piston rod outer wall demountable installation, can cushion the piston rod.

As an alternative scheme of this application technical scheme, protection box both sides equal demountable installation has the spacing, the spacing with keep out board swing joint can carry out spacing and support to the board.

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

1. according to the technical scheme, when the elevator car stops to the elevator shaft opening, the car door of the elevator car can be opened, the two groups of opened car doors can reset the extrusion blocks in the detection groove, when the first pressure sensor on one side of the extrusion block which resets does not have pressure, signals can be transmitted to the control processor, the driving servo motor drives the bidirectional screw rod to rotate, the two groups of rotating bidirectional screw rods can push the two groups of bearing plates to be matched with the stop blocks, so that the elevator car is supported, the problems of door lock short circuit, elevator car overload, band-type brake failure, gear box broken shaft and the like are avoided, and the elevator car is caused to slide down rapidly and accidents occur.

2. According to the technical scheme, the piston rods are movably connected in the piston grooves of each group, the second pressure sensor is detachably mounted on one side of each group of piston rods, when the servo motor drives the two groups of the retaining plates to reset, the piston rods on the retaining plates can squeeze the outer walls of the protection boxes, when the second pressure sensor receives the pressure with a fixed value, signals can be transmitted to the control processor, the servo motor is controlled to stop driving, equipment is protected, and the service life of the device is prolonged.

Drawings

Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:

fig. 1 is a schematic view showing the overall structure of a protective device for an elevator car according to the present utility model;

fig. 2 is a schematic diagram of a detecting groove structure of a protective device for an elevator car according to the present utility model;

fig. 3 is a schematic diagram of a piston groove structure of a protective device for an elevator car according to the present utility model.

In the figure: 1. an elevator shaft; 11. a stop block; 2. a car; 21. a detection groove; 22. extruding a block; 23. a first pressure sensor; 24. a first spring; 3. a protective case; 31. a two-way screw rod; 32. a movable seat; 33. a retaining plate; 34. a limit rod; 35. a servo motor; 4. a piston groove; 41. a piston rod; 42. a second pressure sensor; 43. a second spring; 5. and a limiting frame.

Detailed Description

Referring to fig. 1-3, the present utility model provides a technical solution: the protection device for the elevator car comprises a car 2, wherein car doors are movably arranged at two ends of one side of the car 2, detection grooves 21 are formed in two ends of the car door positioned at one side, extrusion blocks 22 are movably arranged in each group of detection grooves 21, a first pressure sensor 23 is detachably arranged at one side of each group of extrusion blocks 22, a first spring 24 is detachably arranged at one side of the inside of each group of extrusion blocks 22, and the other side of each group of first springs 24 is detachably connected with the inner wall of the detection groove 21;

the lift car 2 is positioned at the inner side of the lift shaft 1, and a plurality of groups of baffle blocks 11 which are distributed at equal intervals are fixedly arranged at the two sides of the inner part of the lift shaft 1;

the bottom side of the lift car 2 is detachably provided with a protection box 3, a bidirectional screw rod 31 is movably arranged in the protection box 3, two sides of the bidirectional screw rod 31 are screwed and connected with movable seats 32, the other sides of the two movable seats 32 are fixedly provided with retaining plates 33, the two retaining plates 33 respectively correspond to the two corresponding groups of stop blocks 11, the other side of the inside of the protection box 3 is fixedly provided with a limiting rod 34, and the limiting rod 34 is movably connected with the two groups of movable seats 32;

a servo motor 35 is detachably arranged on one side of the protection box 3, a driving output end of the servo motor 35 is in transmission connection with a transmission shaft, and the other end of the transmission shaft is fixedly connected with one side of the bidirectional screw rod 31.

In this kind of technical scheme, when car 2 stops to elevator wellhead department, the door of car 2 can be opened, and two sets of doors of opening can reset the extrusion piece 22 in the detection groove 21, when the extrusion piece 22 one side that resets first pressure sensor 23 does not have pressure, can transmit signal to control processor, drive servo motor 35 drives two-way lead screw 31 and rotates, two sets of butt plate 33 of pivoted can promote on dog 11 to support car 2, avoid the door lock short circuit, the car overload, the band-type brake is malfunctioning and gear box breaking the axle scheduling problem, cause car 2 quick gliding to take place the accident.

In the technical scheme, piston grooves 4 are formed in one side of each group of the retaining plates 33, piston rods 41 are movably connected in each group of the piston grooves 4, second pressure sensors 42 are detachably mounted on one side of each group of the piston rods 41, second springs 43 are sleeved on the outer walls of each group of the piston rods 41, and two sides of each group of the second springs 43 are detachably mounted with the retaining plates 33 and the outer walls of the piston rods 41 respectively.

In this kind of technical scheme, when servo motor 35 drive two-way lead screw 31 drive two sets of butt plate 33 reset, piston rod 41 on the butt plate 33 can extrude the protection box 3 outer wall, when second pressure sensor 42 receives the pressure of definite value, can transmit signal to control processor, control servo motor 35 stops the drive, protects equipment, increases the life of device.

In some technical schemes, the two sides of the protection box 3 are detachably provided with the limiting frames 5, and the limiting frames 5 are movably connected with the retaining plates 33.

In this technical scheme, when the butt plate 33 is moving left and right, the butt plate 33 can be limited and supported by the cooperation of the limiting frame 5, so that the firmness and stability of the butt plate 33 are improved.

When the protection device for the elevator car is used, the protection device for the elevator car is provided, all parts are universal standard parts or parts known to a person skilled in the art, and the structure and the principle of the protection device for the elevator car are known by the person skilled in the art through technical manuals or through a routine experiment method.

When the elevator car 2 is stopped at the elevator shaft, the car doors of the elevator car 2 are opened, the two opened car doors reset the extrusion blocks 22 in the detection grooves 21, when the first pressure sensor 23 at one side of the reset extrusion blocks 22 has no pressure, signals are transmitted to the control processor, the servo motor 35 is driven to drive the bidirectional screw rods 31 to rotate, the two groups of the bearing plates 33 are pushed to be matched with the stop blocks 11 by the rotating bidirectional screw rods 31, so that the elevator car 2 is supported, the problems of door lock short circuit, car overload, band-type brake failure, gear box shaft breakage and the like are avoided, the elevator car 2 is prevented from sliding down rapidly, otherwise, when the car doors of the elevator car 2 are closed, the first pressure sensor 23 at one side of the extrusion blocks 22 is subjected to constant pressure, the signals are transmitted to the control processor, the servo motor 35 is driven to drive the bidirectional screw rods 31 to rotate, the two groups of bearing plates 33 are simultaneously driven to be movably connected with the piston rods 41 through each group of piston grooves 4, the second pressure sensor 42 is detachably arranged at one side of each group of the piston rods 41, when the servo motor 35 drives the bearing plates 33 to drive the two groups of bearing plates 33 to drive the piston rods 33 to be in a fixed value, and the control processor is driven by the second pressure sensor 41 to drive the piston rods 33 to rotate the piston rods to be driven by the constant pressure sensor 41, and the servo motor 33 to be driven by the constant pressure force to rotate by the constant pressure sensor 33, and the piston rods to be driven by the constant pressure sensor 33 to rotate when the piston rods are driven to be driven to rotate by the piston rods 33 to be driven to be opposite to a constant to rotate.

Claims

1. Protection device for elevator car, including car (2), its characterized in that: the two ends of one side of the lift car (2) are movably provided with a lift door, the two ends of the lift door positioned on one side are provided with detection grooves (21), each group of detection grooves (21) is internally and movably provided with a squeezing block (22), and one side of each group of squeezing blocks (22) is detachably provided with a first pressure sensor (23);

the elevator car (2) is positioned at the inner side of the elevator shaft (1), and a plurality of groups of baffle blocks (11) which are distributed at equal intervals are fixedly arranged at two sides of the inner part of the elevator shaft (1);

the protection box (3) is detachably arranged at the bottom side of the lift car (2), a bidirectional screw rod (31) is movably arranged in the protection box (3), two sides of the bidirectional screw rod (31) are screwed and connected with movable seats (32), a retaining plate (33) is fixedly arranged at the other side of each of the two groups of movable seats (32), and the two groups of retaining plates (33) are respectively corresponding to the two groups of corresponding stop blocks (11);

the protection box is characterized in that a servo motor (35) is detachably arranged on one side of the protection box (3), a driving output end of the servo motor (35) is in transmission connection with a transmission shaft, and the other end of the transmission shaft is fixedly connected with one side of the bidirectional screw rod (31).

2. The protective device for an elevator car according to claim 1, characterized in that: and one side of the inside of each group of extrusion blocks (22) is detachably provided with a first spring (24), and the other side of each group of first springs (24) is detachable from the inner wall of the detection groove (21).

3. The protective device for an elevator car according to claim 1, characterized in that: and a limiting rod (34) is fixedly arranged on the other side inside the protection box (3), and the limiting rod (34) is respectively and movably connected with the two groups of movable seats (32).

4. The protective device for an elevator car according to claim 1, characterized in that: piston grooves (4) are formed in one side of each group of the retaining plates (33), piston rods (41) are movably connected in each group of the piston grooves (4), and second pressure sensors (42) are detachably arranged on one side of each group of the piston rods (41).

5. The protective device for an elevator car according to claim 4, wherein: and the outer wall of each group of piston rods (41) is sleeved with a second spring (43), and two sides of each group of second springs (43) are detachably mounted with the retaining plate (33) and the outer wall of each piston rod (41) respectively.

6. The protective device for an elevator car according to claim 1, characterized in that: the two sides of the protection box (3) are detachably provided with limiting frames (5), and the limiting frames (5) are movably connected with the retaining plates (33).