CN220376039U - Elevator maintenance safety protection device - Google Patents

Abstract

The utility model relates to the field of elevator maintenance protection equipment, and discloses an elevator maintenance safety protection device which comprises a cross beam arranged at the top of an elevator car, wherein the bottom of the cross beam is contacted with the top of the elevator car, and a clamping assembly, a resisting assembly and a resistance increasing assembly are arranged on the cross beam and are used for clamping and fixing the cross beam on the elevator car. The utility model has the following advantages and effects: the elevator car clamping device can be suitable for firmly clamping and fixing the cross beam at the tops of elevator cars with different width sizes, when the elevator car suddenly ascends due to unexpected conditions, the elevator car can be prevented from colliding with the top wall of an elevator shaft, a certain space is reserved between the elevator car and the top wall of the elevator shaft, overhaulers standing at the tops of the elevator car are prevented from being extruded and injured, the ascending speed of the elevator can be slowed down, and the safety performance of the overhaulers standing at the tops of the elevator car is improved.

Description

Elevator maintenance safety protection device

Technical Field

The utility model relates to the technical field of elevator maintenance protection equipment, in particular to an elevator maintenance safety protection device.

Background

Nowadays, with the rapid development of urban, the building of high-rise buildings is more and more, the utilization rate of elevators is increased, and during long-term use of elevators, in order to ensure stable and safe operation of elevators, maintenance of elevators is required regularly, and when an maintainer stands on top of a car to carry out elevator maintenance operation, the personal safety of the maintainer of elevators is also ensured.

By referring to the "maintenance safety protection device for an elevator bridge roof" with the issued patent number of CN209777993U, the patent proposes that when an existing elevator maintenance person performs elevator maintenance, the existing elevator maintenance person steps on the elevator roof to perform safety maintenance, when the elevator is maintained, the elevator suddenly rises due to unexpected situations, if the elevator cannot stop, the maintenance person standing on the roof is extruded and injured, and the problem is solved by the technical scheme of the patent.

The present utility model provides another solution to the above problems.

Disclosure of Invention

The utility model aims to provide an elevator maintenance safety protection device which is applicable to firmly clamping and fixing cross beams at the tops of elevator cabs with different width sizes, can prevent the elevator cabs from colliding with the top wall of an elevator shaft when the elevator cabs suddenly ascend due to unexpected situations, can leave a certain space between the elevator cabs and the top wall of the elevator shaft, can prevent overhaulers standing on the tops of the elevator cabs from being extruded and injured, and can slow down the ascending speed of the elevator and improve the safety performance of the overhaulers standing on the tops of the elevator cabs.

The technical aim of the utility model is realized by the following technical scheme: the utility model provides an elevator maintenance safety arrangement, includes the crossbeam that sets up at elevator car top, the bottom of crossbeam and elevator car's top contact are provided with clamping assembly on the crossbeam, keep out the subassembly and increase the resistance subassembly, and clamping assembly is used for pressing from both sides the crossbeam tight fixed on elevator car, keeps out the subassembly and is used for preventing that elevator car's top from colliding with elevator shaft's roof, increases the resistance subassembly and is used for slowing down elevator car rising speed.

The utility model is further provided with: the clamping assembly comprises two bearing seats, two first lead screws, two clamping plates, a connecting rod, driven bevel gears, a rotating shaft, first regulating handles and driving bevel gears, two transverse sliding grooves are formed in the bottom of a cross beam, the two bearing seats are respectively and fixedly installed on the inner wall of one side of each transverse sliding groove, one ends of the two first lead screws, which are far away from each other, are respectively and rotatably connected with the corresponding bearing seats, threads of the two first lead screws are oppositely arranged, the two clamping plates are respectively and rotatably sleeved on the corresponding first lead screws, the bottoms of the two clamping plates are respectively extended to the outer sides of the corresponding transverse sliding grooves, an elevator car is located between the two clamping plates, one transverse hole is formed in the inner wall of one side, which is close to each other, of the two transverse sliding grooves, one end, which is close to each other, of the two first lead screws is respectively and fixedly connected with the two ends of the connecting rod, the driven bevel gears are fixedly sleeved on the connecting rod, the inner wall of the top of each transverse hole is provided with a vertical hole, the rotating shaft is rotatably installed in the vertical hole through the bearing, the two ends of each clamping plate are respectively extended to the corresponding transverse sliding grooves, the elevator car is located between the two clamping plates, the two ends of each driving bevel gears are fixedly installed on the top of the driving bevel gears, and the driving bevel gears are meshed with the rotating shafts.

The utility model is further provided with: limiting grooves are formed in the inner walls of the tops of the two transverse sliding grooves, and the tops of the two clamping plates are respectively and slidably arranged in the corresponding limiting grooves.

The utility model is further provided with: one side that two splint are close to each other all fixed mounting has slipmat, and two slipmats respectively with the left side outer wall and the right side outer wall contact of elevator car, the lower surface of crossbeam is provided with the anti-skidding line.

The utility model is further provided with: the resisting assembly comprises four baffle columns and four buffer blocks, wherein the four baffle columns are fixedly arranged at the top of the cross beam and are symmetrical in pairs respectively, and the four buffer blocks are fixedly arranged at the top ends of the corresponding baffle columns respectively.

The utility model is further provided with: the resistance increasing assembly comprises two supporting seats, two second screw rods, two friction blocks and two second adjusting handles, wherein the two supporting seats are fixedly installed at the top of the cross beam, the two second screw rods are respectively and threadedly installed on the corresponding supporting seats, the two friction blocks are respectively and fixedly installed at one ends of the two second screw rods, which are mutually far away, and the two second adjusting handles are respectively and fixedly installed at one ends of the two second screw rods, which are mutually close.

The beneficial effects of the utility model are as follows:

1. the clamping assembly consisting of the two bearing seats, the two first screw rods, the two clamping plates, the connecting rod, the driven bevel gear, the rotating shaft, the first adjusting handle and the driving bevel gear is used, so that the clamping assembly can be suitable for firmly clamping and fixing the cross beam on elevator cabs with different width sizes.

2. According to the utility model, the blocking assembly consisting of the four blocking posts and the four buffer blocks is utilized to block and limit the ascending height position of the elevator car, so that a certain space is reserved between the elevator car and the top of the elevator shaft, when the elevator car suddenly ascends due to unexpected conditions, the elevator car can be prevented from colliding with the top wall of the elevator shaft, a certain space can be reserved between the elevator car and the top wall of the elevator shaft, an maintainer standing on the top of the elevator car is prevented from being extruded and injured, and the purpose of protecting safety of the maintainer is achieved.

3. According to the utility model, the resistance increasing assembly consisting of the two supporting seats, the two second screw rods, the two friction blocks and the two second adjusting handles is utilized, so that the two friction blocks can be conveniently adjusted to tightly abut against the two side walls of the elevator shaft, and when the elevator car suddenly ascends due to unexpected conditions, the friction resistance generated when the two friction blocks respectively abut against the two side walls of the elevator shaft is utilized, so that the effect of reducing the ascending speed of the elevator car is achieved, and the safety protection of maintenance personnel standing on the top of the elevator car can be further realized.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of the present embodiment.

Fig. 2 is a schematic diagram of a front sectional structure of the present embodiment.

Fig. 3 is an enlarged schematic view of the portion a in fig. 2.

Fig. 4 is an enlarged schematic view of the portion B in fig. 2.

In the figure, 1, an elevator car; 2. a cross beam; 3. a transverse chute; 4. a bearing seat; 5. a first screw rod; 6. a clamping plate; 7. a transverse hole; 8. a connecting rod; 9. a driven bevel gear; 10. a rotating shaft; 11. a first adjustment handle; 12. a driving bevel gear; 13. a baffle column; 14. a buffer block; 15. a support base; 16. a second screw rod; 17. a friction block; 18. a second adjustment handle; 19. an anti-slip mat.

Detailed Description

The technical scheme of the present utility model will be clearly and completely described in connection with specific embodiments. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

Referring to fig. 1, 2, 3 and 4, the present utility model provides an elevator maintenance safety protection device, comprising a beam 2 disposed at the top of an elevator car 1, the bottom of the beam 2 is in contact with the top of the elevator car 1, the lower surface of the beam 2 is provided with anti-skid patterns for increasing the friction force when the beam 2 is in contact with the top of the elevator car 1, and the beam 2 can be more stably placed on the top surface of the elevator car 1, wherein:

the beam 2 is provided with a clamping assembly, a resisting assembly and a resistance increasing assembly, the clamping assembly is used for clamping and fixing the beam 2 on the elevator car 1 and can be suitable for clamping and fixing the beam 2 on the tops of the elevator cars 1 with different width sizes, the clamping assembly comprises two bearing seats 4, two first screw rods 5, two clamping plates 6, a connecting rod 8, a driven bevel gear 9, a rotating shaft 10, a first adjusting handle 11 and a driving bevel gear 12, the bottom of the beam 2 is provided with two transverse sliding grooves 3, the two bearing seats 4 are respectively fixedly arranged on the inner wall of one side of the two transverse sliding grooves 3 away from each other, one ends of the two first screw rods 5 away from each other are respectively connected with the corresponding bearing seats 4 in a rotating way, threads of the two first screw rods 5 are oppositely arranged, the two clamping plates 6 are respectively sleeved on the corresponding first screw rods 5 in a threaded way, the bottoms of the two clamping plates 6 respectively extend to the outside of the corresponding transverse sliding grooves 3, the elevator car 1 is positioned between the two clamping plates 6, the first screw rods 5 which are oppositely arranged by utilizing the rotation directions of the two threads are respectively matched with the threads of the corresponding clamping plates 6, when the two first screw rods 5 rotate simultaneously, the two clamping plates 6 can be controlled to move away from each other or towards the directions close to each other, the distance between the two clamping plates 6 can be adjusted, the cross beam 2 can be clamped and fixed at the top of the elevator car 1 by utilizing the two clamping plates 6, the distance between the two clamping plates 6 is adjusted, the elevator car is suitable for clamping and fixing the cross beam 2 on the elevator car 1 with different width sizes, one transverse hole 7 is formed on the inner wall of one side, close to each other, of the two transverse sliding grooves 3, the connecting rod 8 is positioned in the transverse hole 7, one end, close to each other, of the two first screw rods 5 extends into the transverse hole 7, one end of each first screw rod 5, which is close to each other, is fixedly connected with two ends of a connecting rod 8, a driven bevel gear 9 is fixedly sleeved on the connecting rod 8, a vertical hole is formed in the inner wall of the top of a transverse hole 7, a rotating shaft 10 is rotatably installed in the vertical hole through a bearing, two ends of the rotating shaft 10 extend out of the vertical hole, a first adjusting handle 11 is fixedly installed at the top end of the rotating shaft 10, a driving bevel gear 12 is fixedly installed at the bottom end of the rotating shaft 10, the driving bevel gear 12 is meshed with the driven bevel gear 9, the first adjusting handle 11 is used for controlling the rotating shaft 10 and the driving bevel gear 12 to rotate, the connecting rod 8 and the two first screw rods 5 can be controlled to rotate simultaneously by utilizing the meshing transmission effect of the driving bevel gear 12 and the driven bevel gear 9, a resisting component is used for preventing the top of an elevator car 1 from colliding with the top wall of an elevator shaft, and the resisting component comprises four retaining posts 13 and four buffer blocks 14, the four baffle posts 13 are fixedly arranged at the top of the cross beam 2 and are symmetrically arranged in pairs, the four buffer blocks 14 are respectively and fixedly arranged at the top ends of the corresponding baffle posts 13, the lifting height of the elevator car 1 can be limited by utilizing the common cooperation of the four baffle posts 13 and the four buffer blocks 14, when the elevator car 1 suddenly rises due to unexpected conditions, the elevator car 1 can be prevented from colliding with the top wall of an elevator shaft, a certain space can be reserved between the elevator car 1 and the top wall of the elevator shaft, the overhaulers standing at the top of the elevator car 1 can be prevented from being extruded and injured, the aim of safety protection of the overhaulers is realized, the baffle posts 13 are made of stainless steel posts, have firm strength and are not easy to deform, the buffer blocks 14 are made of elastic rubber, the impact force received by the baffle posts 13 can be effectively buffered, the situation that the baffle column 13 is stressed and deformed is further avoided, the resistance increasing component is used for slowing down the rising speed of the elevator car 1, the resistance increasing component comprises two supporting seats 15, two second screw rods 16, two friction blocks 17 and two second adjusting handles 18, the two supporting seats 15 are fixedly arranged at the top of the cross beam 2, the two second screw rods 16 are respectively and spirally arranged on the corresponding supporting seats 15, the two friction blocks 17 are respectively and fixedly arranged at one ends of the two second screw rods 16, which are mutually far away, the two second adjusting handles 18 are respectively and fixedly arranged at one ends of the two second screw rods 16, which are mutually close, the second screw rods 16 are convenient to rotate by utilizing the second adjusting handles 18, the horizontal position of the friction blocks 17 is adjusted conveniently, the friction blocks 17 can be adjusted to be in conflict with the side wall of an elevator shaft, and friction resistance generated when the friction blocks 17 are in conflict with the side wall of the elevator shaft is utilized, when the elevator car 1 suddenly rises due to unexpected situations, the effect of slowing down the rising speed of the elevator car 1 is achieved, and safety protection is further carried out on personnel standing at the top of the elevator car 1.

In this embodiment, the top inner walls of the two lateral sliding grooves 3 are provided with limiting grooves, and the tops of the two clamping plates 6 are respectively slidably mounted in the corresponding limiting grooves, so as to limit the sliding travel of the clamping plates 6, and also play a role in guiding the sliding direction of the clamping plates 6, so that the clamping plates 6 can slide in the horizontal direction in the lateral sliding grooves 3.

In this embodiment, two clamping plates 6 are all fixed mounting in one side that is close to each other has slipmat 19, and two slipmats 19 respectively with the left side outer wall and the right side outer wall contact of elevator car 1 for increase the frictional force when clamping plate 6 contacts with the lateral wall of elevator car 1, improve the stability when the centre gripping is fixed.

Through the structure, the elevator maintenance safety protection device provided by the utility model can be suitable for firmly clamping and fixing the cross beam 2 at the tops of the elevator cabs 1 with different width sizes, when the elevator cabs 1 suddenly ascend due to accidents, the elevator cabs 1 can be prevented from colliding with the top wall of an elevator shaft, a certain space can be reserved between the elevator cabs 1 and the top wall of the elevator shaft, maintenance personnel standing at the tops of the elevator cabs 1 can be prevented from being extruded and injured, the ascending speed of the elevator can be slowed down, the safety performance of the maintenance personnel standing at the tops of the elevator cabs 1 is improved, in particular operation, the cross beam 2 is placed at the proper positions at the tops of the elevator cabs 1 before the elevator maintenance is carried out, so that two clamping plates 6 are respectively positioned at two sides of the elevator cabs 1, and then the first adjusting handle 11 is rotated clockwise, the driving bevel gear 12 and the driven bevel gear 9 are used for meshed transmission, the connecting rod 8 and the two first screw rods 5 can be controlled to rotate simultaneously, so that the two clamping plates 6 can move towards directions close to each other, when the two anti-slip pads 19 respectively tightly collide with the outer walls of the two sides of the elevator car 1, the cross beam 2 is clamped and fixed at the top of the elevator car 1, the two friction blocks 17 can be adjusted to tightly collide with the two side walls of the elevator shaft by rotating the two second adjusting handles 18 clockwise in sequence, then an maintainer can stand at the top of the elevator car 1 for maintenance operation, during operation, when the elevator car 1 suddenly rises due to unexpected conditions, the maintainer can squat and hold two baffle posts 13, at the moment, the rising height of the elevator car 1 can be effectively blocked by using the four baffle posts 13 and the four buffer blocks 14, the elevator car 1 can not collide with the top of the elevator shaft, a certain space can be reserved between the elevator car 1 and the top wall of the elevator shaft, the situation that an maintainer standing at the top of the elevator car 1 is extruded and injured can be prevented, the purpose of protecting safety of the maintainer is achieved, when the elevator car 1 suddenly ascends due to unexpected conditions, the two friction blocks 17 are utilized to respectively collide with the two side walls of the elevator shaft to generate friction resistance, the effect of slowing down the ascending speed of the elevator car 1 is achieved, safety protection can be further carried out on the maintainer standing at the top of the elevator car 1, after the overhaul work is completed, the two friction blocks 17 can be adjusted to the original position by rotating the two second adjusting handles 18 anticlockwise, the two clamping plates 6 can be controlled to move in the directions away from each other by rotating the first adjusting handle 11 anticlockwise, and the cross beam 2 can be taken down from the top of the elevator car 1.

The elevator maintenance safety protection device provided by the utility model is described in detail. The principles and embodiments of the present utility model have been described herein with reference to specific examples, which are intended to be merely illustrative of the methods of the present utility model and their core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims (6)

1. The utility model provides an elevator maintenance safety arrangement, its characterized in that, including setting up crossbeam (2) at elevator car (1) top, the bottom of crossbeam (2) with elevator car (1) top contact, be provided with clamping assembly on crossbeam (2), keep out subassembly and increase and hinder the subassembly, clamping assembly is used for pressing from both sides tight fixing on elevator car (1) crossbeam (2), keep out the subassembly and be used for preventing that elevator car (1) top and the roof of elevator shaft from bumping, increase and hinder the subassembly and be used for slowing down elevator car (1) rising speed.

2. An elevator maintenance safety protection device according to claim 1, characterized in that: the clamping assembly comprises two bearing seats (4), two first screw rods (5), two clamping plates (6), connecting rods (8), driven bevel gears (9), rotating shafts (10), first adjusting handles (11) and driving bevel gears (12), two transverse sliding grooves (3) are formed in the bottoms of the cross beams (2), the two bearing seats (4) are respectively and fixedly installed on the inner walls of one sides of the two transverse sliding grooves (3) which are far away from each other, one ends of the two first screw rods (5) which are far from each other are respectively and rotatably connected with the corresponding bearing seats (4), threads of the two first screw rods (5) are oppositely arranged in a screwing mode, the bottoms of the two clamping plates (6) are respectively and fixedly sleeved on the corresponding first screw rods (5), the elevator car (1) is located between the two clamping plates (6), one hole (7) is formed in the inner wall of one side of the two transverse sliding grooves (3) which is close to each other, the two holes (7) are located in the two connecting rods (7) which are close to each other, one end of the two connecting rods (7) which are close to each other are fixedly connected with one end of the two connecting rods (8) which are close to each other, the driven bevel gear (9) is fixedly sleeved on the connecting rod (8), a vertical hole is formed in the inner wall of the top of the transverse hole (7), the rotating shaft (10) is rotatably installed in the vertical hole through a bearing, two ends of the rotating shaft (10) are all extended out of the vertical hole, the first adjusting handle (11) is fixedly installed at the top end of the rotating shaft (10), the driving bevel gear (12) is fixedly installed at the bottom end of the rotating shaft (10), and the driving bevel gear (12) is meshed with the driven bevel gear (9).

3. An elevator maintenance safety protection device according to claim 2, characterized in that: limiting grooves are formed in the inner walls of the tops of the two transverse sliding grooves (3), and the tops of the two clamping plates (6) are respectively and slidably arranged in the corresponding limiting grooves.

4. An elevator maintenance safety protection device according to claim 2, characterized in that: two clamping plates (6) are fixedly mounted on one sides, close to each other, of the clamping plates, anti-slip pads (19) are respectively in contact with the left outer wall and the right outer wall of the elevator car (1), and anti-slip patterns are formed on the lower surface of the cross beam (2).

5. An elevator maintenance safety protection device according to claim 1, characterized in that: the resisting assembly comprises four baffle columns (13) and four buffer blocks (14), wherein the four baffle columns (13) are fixedly arranged at the top of the cross beam (2) and are symmetrically distributed in pairs, and the four buffer blocks (14) are respectively and fixedly arranged at the top ends of the corresponding baffle columns (13).

6. An elevator maintenance safety protection device according to claim 1, characterized in that: the resistance increasing assembly comprises two supporting seats (15), two second screw rods (16), two friction blocks (17) and two second adjusting handles (18), wherein the two supporting seats (15) are fixedly installed at the top of the cross beam (2), the two second screw rods (16) are respectively and spirally installed on the corresponding supporting seats (15), the two friction blocks (17) are respectively and fixedly installed at one ends, far away from each other, of the two second screw rods (16), and the two second adjusting handles (18) are respectively and fixedly installed at one ends, close to each other, of the two second screw rods (16).