CN220131639U - Safety pin for elevator maintenance - Google Patents

Abstract

The utility model relates to the technical field of elevator equipment, and discloses a safety pin for elevator overhaul, which comprises a base and a locking assembly, wherein two sides of the base are symmetrically and fixedly connected with two mounting frames, a circular groove is formed in one inner side wall of each mounting frame, a rotating rod is rotatably connected in each circular groove, a coil spring is arranged outside each rotating rod, one end of each rotating rod, which is far away from each circular groove, is fixedly connected with a cross rod, and one end of each cross rod, which is far away from each rotating rod, extends to the outside of each mounting frame and is wound with a steel wire rope; when the elevator lifting rope is broken, the safety pin can enter the preset elevator track clamping groove, and the safety pin is locked, so that the aim of preventing the elevator car from continuously falling down is fulfilled, and the safety of maintenance personnel is effectively protected.

Description

Safety pin for elevator maintenance

Technical Field

The utility model relates to the technical field of elevator equipment, in particular to a safety pin for elevator overhaul.

Background

The elevator is an auxiliary tool for the upper and lower of a high-rise building, when the elevator needs to be jacked up to overhaul an elevator car and an operation power assembly, a hall door is opened after the elevator car slowly descends to a proper position during maintenance operation, so that the elevator is climbed up to carry out maintenance work, and the conventional elevator generally controls the elevator to stop through a microcomputer control system of the elevator during maintenance, and then maintenance personnel maintain the elevator.

In view of the above-mentioned related art, the inventor considers that the method of controlling the stop of the elevator by the microcomputer control system of the elevator in the prior art has defects when the elevator overhauls, if the elevator fails to send, the elevator does not have a safety locking function, and once the control system misplaces to cause the elevator to run, the elevator falls to cause personal injury to maintenance personnel, so a safety pin for overhauling the elevator is proposed to solve the above-mentioned problems.

The above information disclosed in this background section is only for enhancement of understanding of the background section of the utility model and therefore it may not form the prior art that is already known to those of ordinary skill in the art.

Disclosure of Invention

In order to solve the defects of the prior art in the method for controlling the elevator to stop by a microcomputer control system of the elevator during elevator maintenance, if the elevator is in fault sending, the elevator does not have a safety locking function, and once the control system is misplaced to cause the elevator to run, the elevator falls to cause personal injury to maintenance personnel, the utility model provides a safety pin for elevator maintenance.

The utility model provides a safety pin for elevator overhaul, which adopts the following technical scheme:

the utility model provides an elevator overhauls and uses safety pin, includes base and locking subassembly, two installing frames of bilateral symmetry fixedly connected with of base, circular slot has been seted up to one of them inside wall of installing frame, the inside rotation in circular slot is connected with the dwang, the externally mounted of dwang has the wind spring, the one end fixedly connected with horizontal pole of circular slot is kept away from to the dwang, the one end that the dwang was kept away from to the horizontal pole extends to the installing frame outside and twines and be provided with wire rope, fixes wire rope and elevator's lifting rope together, and when elevator lifting rope fracture, wire rope will shrink, can't provide effort to the horizontal pole, can drive the horizontal pole and rotate under the effect of wind spring.

Preferably, the locking assembly comprises a first bevel gear fixedly connected to the outside of the cross rod, a second bevel gear is meshed to the outside of the first bevel gear, a first rotating shaft is fixedly connected to the inside of the second bevel gear, a first gear is fixedly connected to the outside of the first rotating shaft and located below the second bevel gear, a second gear is meshed to the outside of the first gear, a second rotating shaft is fixedly connected to the inside of the second gear, a safety pin is fixedly connected to the outside of the second rotating shaft and located above the second gear, the cross rod drives the first bevel gear to rotate when rotating, then the second bevel gear rotates, the first rotating shaft, the first gear, the second gear and the second rotating shaft are sequentially driven to rotate, finally the safety pin is driven to rotate, and when the safety pin rotates into a preset elevator track clamping groove, the safety pin is locked, and the operation of the elevator is stopped.

Preferably, the first rotating shaft and the second rotating shaft are both rotationally connected to the inner wall of the bottom of the mounting frame, and when the first gear drives the second gear to rotate, the first rotating shaft, the second rotating shaft and the safety pin can be driven to rotate.

Preferably, the shape of the installation frame is a hollow cuboid with an opening at one side, and one side of the opening of the installation frame is aligned with a preset elevator track clamping groove.

Preferably, four mounting holes are formed in the outer portion of the base, and the whole equipment can be fixedly connected to the top of the elevator car through the mounting holes.

In summary, the utility model has the following beneficial technical effects:

1. when the elevator lifting rope is broken, the steel wire rope contracts and cannot provide acting force for the cross rod, the cross rod is driven to rotate under the action of the coil spring, the first bevel gear is driven to rotate when the cross rod rotates, then the second bevel gear rotates, the first rotating shaft, the first gear, the second gear and the second rotating shaft are sequentially driven to rotate, finally the safety pin is driven to rotate, and when the safety pin rotates into a preset elevator track clamping groove, the safety pin is locked, and the operation of the elevator is stopped; compared with the prior art, when the elevator lifting rope is broken, the safety pin can enter the preset elevator track clamping groove, and the safety pin is locked, so that the aim of preventing the elevator car from continuously falling down is fulfilled, and the safety of maintenance personnel is effectively protected.

Drawings

FIG. 1 is a first overall schematic of an embodiment of the application;

FIG. 2 is a second overall schematic of an embodiment of the application;

FIG. 3 is a third overall schematic of an embodiment of the application;

FIG. 4 is a schematic cross-sectional structure of an embodiment of the application;

FIG. 5 is an enlarged schematic view of the structure shown at A in FIG. 3;

FIG. 6 is an enlarged schematic view of the structure at B in FIG. 3;

fig. 7 is an enlarged schematic view of the structure at C in fig. 4.

Reference numerals illustrate: 1. a base; 2. a mounting frame; 3. a circular groove; 4. a rotating lever; 5. a coil spring; 6. a cross bar; 7. a wire rope; 8. a first bevel gear; 9. a second bevel gear; 10. a first rotating shaft; 11. a first gear; 12. a second gear; 13. a second rotating shaft; 14. a safety pin; 15. and (5) mounting holes.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-7.

The embodiment of the utility model discloses a safety pin for elevator maintenance, which comprises a base 1 and a locking assembly, wherein two sides of the base 1 are symmetrically and fixedly connected with two mounting frames 2, one inner side wall of each mounting frame 2 is provided with a round groove 3, the inside of each round groove 3 is rotatably connected with a rotating rod 4, the outside of each rotating rod 4 is provided with a coil spring 5, certain elastic potential energy is accumulated in each coil spring 5, one end of each rotating rod 4, far away from each round groove 3, is fixedly connected with a cross rod 6, the rotating rods 4 rotate to drive the cross rods 6 to rotate, one end of each cross rod 6, far away from each rotating rod 4, extends to the outside of each mounting frame 2 and is wound with a steel wire rope 7, the steel wire ropes 7 and lifting ropes of an elevator are fixed together, at the moment, each steel wire rope 7 has a certain tensile force on each cross rod 6, and the tensile force and the coil springs 5 balance acting force on the cross rods 6.

Referring to fig. 3 and 5, the locking assembly includes a first bevel gear 8 fixedly connected to the outside of the cross bar 6, a second bevel gear 9 is meshed to the outside of the first bevel gear 8, a first rotating shaft 10 is fixedly connected to the inside of the second bevel gear 9, a first gear 11 is fixedly connected to the outside of the first rotating shaft 10 and below the second bevel gear 9, a second gear 12 is meshed to the outside of the first gear 11, a second rotating shaft 13 is fixedly connected to the inside of the second gear 12, a safety pin 14 is fixedly connected to the outside of the second rotating shaft 13 and above the second gear 12, when the cross bar 6 rotates, the first bevel gear 8 is driven to rotate, then the second bevel gear 9 rotates, the first rotating shaft 10, the first gear 11, the second gear 12 and the second rotating shaft 13 are sequentially driven to rotate, finally the safety pin 14 is driven to rotate, when the safety pin 14 rotates into a preset elevator track clamping groove, the safety pin 14 is locked, and the operation of the elevator is stopped.

Referring to fig. 3 and 5, the first rotating shaft 10 and the second rotating shaft 13 are both rotatably connected to the inner wall of the bottom of the mounting frame 2, and when the first gear 11 drives the second gear 12 to rotate, the first rotating shaft 10, the second rotating shaft 13 and the safety pin 14 can be driven to rotate.

Referring to fig. 1 to 4, the mounting frame 2 is formed in a hollow rectangular parallelepiped shape with one side opened, and one side of the opening of the mounting frame 2 should be aligned with a predetermined elevator rail clamping groove.

Referring to fig. 1 to 4, four mounting holes 15 are formed at the outside of the base 1, and the entire apparatus can be fixedly connected to the top of the elevator car through the mounting holes 15.

The implementation principle of the safety pin for elevator overhaul provided by the embodiment of the utility model is as follows: the whole equipment can be fixedly connected to the top of an elevator car through the mounting hole 15, the steel wire rope 7 and the lifting rope of the elevator are fixed together, at the moment, the steel wire rope 7 has a certain pulling force on the cross rod 6, the pulling force and the acting force of the coil spring 5 on the cross rod 6 are balanced, when the elevator lifting rope breaks, the steel wire rope 7 is shrunk and loosened, the acting force cannot be provided for the cross rod 6, the cross rod 6 is driven to rotate under the action of the coil spring 5, the first bevel gear 8 is driven to rotate when the cross rod 6 rotates, then the second bevel gear 9 rotates, the first rotating shaft 10, the first gear 11, the second gear 12 and the second rotating shaft 13 are sequentially driven to rotate, the second rotating shaft 13 finally drives the safety pin 14 to rotate, and when the safety pin 14 rotates into a preset elevator track clamping groove, the safety pin 14 is locked, and the operation of the elevator also stops.

The last points to be described are: first, in the description of the present utility model, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, and "upper," "lower," "left," "right," etc. are merely used to indicate relative positional relationships, which may be changed when the absolute position of the object being described is changed;

secondly: in the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures can refer to the common design, so that the same embodiment and different embodiments of the present disclosure can be combined with each other under the condition of no conflict;

finally: the foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (5)

1. The utility model provides an elevator overhauls uses safety pin, includes base (1) and locking subassembly, its characterized in that: two mounting frames (2) are symmetrically and fixedly connected to two sides of the base (1), a round groove (3) is formed in one inner side wall of each mounting frame (2), a rotating rod (4) is connected to the inside of each round groove (3) in a rotating mode, a coil spring (5) is arranged on the outside of each rotating rod (4), a cross rod (6) is fixedly connected to one end, away from each round groove (3), of each rotating rod (4), and one end, away from each cross rod (6), of each rotating rod (4) extends to the outside of each mounting frame (2) and is wound with a steel wire rope (7).

2. The safety pin for elevator maintenance according to claim 1, wherein: the locking assembly comprises a first bevel gear (8) fixedly connected to the outside of a cross rod (6), a second bevel gear (9) is meshed with the outside of the first bevel gear (8), a first rotating shaft (10) is fixedly connected to the inside of the second bevel gear (9), a first gear (11) is fixedly connected to the outside of the first rotating shaft (10) and located below the second bevel gear (9), a second gear (12) is meshed with the outside of the first gear (11), a second rotating shaft (13) is fixedly connected to the inside of the second gear (12), and a safety pin (14) is fixedly connected to the outside of the second rotating shaft (13) and located above the second gear (12).

3. The safety pin for elevator maintenance according to claim 2, wherein the first rotating shaft (10) and the second rotating shaft (13) are both rotatably connected to the bottom inner wall of the mounting frame (2).

4. The safety pin for elevator maintenance according to claim 1, wherein: the shape of the mounting frame (2) is a hollow cuboid with one side open.

5. The safety pin for elevator maintenance according to claim 1, wherein: four mounting holes (15) are formed in the outer portion of the base (1).