Protective device with clamping function for elevator car top maintenance

Abstract

The utility model discloses a protection device with a clamping function for elevator car top maintenance, and belongs to the technical field of protection devices for elevator maintenance. The elevator car top maintenance protection device with the clamping function comprises an elevator car and further comprises clamping plates, the number of the clamping plates is at least two, the two clamping plates are located on the two sides of the upper portion of the elevator car respectively, a storage bin is arranged above the elevator car, a bearing plate is arranged above the storage bin, and the bearing plate is connected with the elevator car. The storage bin is of a cuboid structure defined by a bottom plate, side plates and a top plate. In order to solve the problem that when a person carries out maintenance work on the top of a lift car, the person may be injured by extrusion, two moving plates move in a storage bin till two clamping plates are clamped to the two sides of the electric lift car correspondingly, the position of the storage bin is fixed, and then the position of a bearing plate above the storage bin is fixed; and a worker carries out maintenance work below the bearing plate, so that effective protection can be provided for the worker.

Description

Technical Field

[0001] This utility model relates to the technical field of elevator maintenance protection devices, specifically a maintenance protection device for the top of an elevator car with a locking function. Background Technology

[0002] An elevator is a vertical lifting device that transports people or goods. An elevator includes a traction system, a guiding system, a car, a door system, a weight balancing system, and an electric drive system. Elevator maintenance cycles typically include daily, weekly, monthly, quarterly, and annual inspections. These inspections aim to promptly identify and resolve potential problems to ensure the safe operation of the elevator. Elevator maintenance encompasses multiple aspects such as cleaning, lubrication, inspection, functional testing, adjustment and calibration, component replacement, and record-keeping and feedback. For example, cleaning includes removing debris and dust from the car, shaft, and machine room; lubrication involves lubricating the guide rails, door operating system, and traction machine; and inspection includes checking safety devices, electrical systems, door locks, and emergency devices.

[0003] Vertical elevators typically have a car. When inspecting a car-type elevator, maintenance personnel need to climb to the top of the car to check whether the equipment is intact or loose. However, when the elevator short-circuits and rises uncontrollably to the top, the car top lacks a protective maintenance space, posing a risk of personnel being crushed or injured while performing maintenance work on the car top. Therefore, this does not meet the existing requirements, and a protective device with a locking function for maintenance on the top of the elevator car is proposed. Summary of the Invention

[0004] The purpose of this utility model is to provide a protective device for maintenance on the top of an elevator car with a locking function. By setting a storage compartment on the top of the elevator car, and installing a movable plate inside the storage compartment, with a locking plate at one end of the movable plate, the two movable plates move inside the storage compartment until the two locking plates are located on both sides of the elevator car, thus fixing the position of the storage compartment and consequently fixing the position of the load-bearing plate above the storage compartment. Personnel can carry out maintenance work below the load-bearing plate, thereby providing effective protection for personnel and solving the problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a protective device for maintenance of the top of an elevator car with a locking function, comprising an elevator car and locking plates, wherein at least two locking plates are provided, the two locking plates being located on opposite sides above the elevator car, a storage compartment is provided above the elevator car, a load-bearing plate is provided above the storage compartment, a movable plate and a transmission gear are provided inside the storage compartment, the storage compartment being a cuboid structure formed by a bottom plate, side plates and a top plate, the movable plate being located between the two side plates, a first rack being provided on one side of the side plate, and a second rack being provided at both ends of the movable plate.

[0006] Preferably, the transmission gear is located between the side plate and the movable plate, and the transmission gear meshes with the first rack and the second rack. The transmission gear has a rotating shaft inside, and the upper and lower ends of the rotating shaft are respectively connected to the bottom plate and the top plate shaft. At least four transmission gears are provided.

[0007] Preferably, the storage compartment is open at both ends, one end of the movable plate is provided with a through groove and extends to the outside through the open end of the storage compartment, and the upper end of the locking plate is provided with a limiting plate, and one end of the locking plate passes through the through groove to the limiting plate and contacts the movable plate.

[0008] Preferably, a slide rail and a first baffle are provided below the top plate, and screw holes are provided inside the first baffle. A slider and a second baffle are provided above the movable plate. The slider is located inside the slide rail, and a roller is provided above the bottom plate.

[0009] Preferably, at least two load-bearing plates are provided, which are connected by a telescopic rod. A load-bearing shaft is provided below the load-bearing plate, and several positioning blocks are provided at the upper end of the side plate. A fixing seat is provided on the side of the side plate.

[0010] Preferably, the load-bearing shaft is connected to the load-bearing plate, and both ends of the load-bearing shaft are provided with a first support rod and a second support rod. At least three positioning blocks are arranged as a group, and both ends of a group of positioning blocks are provided with protrusions. A crossbar is provided above a group of positioning blocks.

[0011] Preferably, one end of the first support rod is connected to the fixed seat shaft, the other end of the first support rod is connected to the load-bearing shaft, one end of the two second support rods is connected by a positioning rod, and the other ends of the two second support rods are respectively connected to the two ends of the load-bearing shaft.

[0012] Preferably, the positioning rod is located between two adjacent positioning blocks, one end of the crossbar is connected to a protrusion shaft, and the other end of the crossbar is connected to another protrusion via a pin.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model involves setting a storage compartment at the top of the elevator car. Inside the storage compartment, there is a movable plate with a locking plate at one end. The two movable plates move in opposite directions inside the storage compartment until the two locking plates are respectively locked onto the two sides of the elevator car. Finally, the movable plate and the storage compartment are connected by screws to fix the position of the movable plate, thereby fixing the position of the storage compartment. At this time, the position of the load-bearing plate above the storage compartment is fixed, and personnel can carry out maintenance work under the load-bearing plate, thus providing effective protection for personnel and avoiding the possibility of personnel being crushed and injured in the event of elevator malfunction.

[0015] 2. This utility model features a load-bearing shaft positioned below the load-bearing plate. Both ends of the load-bearing shaft are equipped with a first support rod and a second support rod. The second support rod is connected by a positioning rod, which is located between two adjacent positioning blocks. Multiple positioning blocks form a group, with a front protrusion and a rear protrusion at each end of the group. A crossbar is positioned above the group of positioning blocks, with one end connected to the front protrusion shaft and the other end connected to the rear protrusion via a pin. When personnel move the positioning rod towards the front protrusion, the angle between the first and second support rods decreases, causing the load-bearing plate to move upwards. This expands the protection space for personnel and improves the flexibility of the load-bearing plate during use. Attached Figure Description

[0016] Figure 1 This is the overall front view of the present invention;

[0017] Figure 2 This is a partial structural diagram of the movable plate of this utility model;

[0018] Figure 3 This is a partial structural diagram of the top plate of this utility model;

[0019] Figure 4 This is a partial structural diagram of the side plate of this utility model.

[0020] In the diagram: 1. Elevator car; 2. Clamping plate; 201. Limiting plate; 3. Storage compartment; 301. Base plate; 3011. Roller; 302. Side plate; 3021. First rack; 3022. Positioning block; 3023. Protrusion; 3024. Crossbar; 3025. Pin; 303. Top plate; 3031. Slide rail; 3032. First baffle; 3033. Screw hole; 4. Load-bearing plate; 401. Telescopic rod; 402. Load-bearing shaft; 403. First support rod; 404. Fixed seat; 405. Second support rod; 406. Positioning rod; 5. Moving plate; 501. Second rack; 502. Slider; 503. Second baffle; 504. Through groove; 505. Transmission gear. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] To address the potential for personnel to be crushed while performing maintenance work on top of the car, please refer to [link to relevant documentation]. Figure 1-4 This utility model provides an embodiment of a protective device for maintenance of the top of an elevator car with a locking function, including an elevator car 1 and locking plates 2. At least two locking plates 2 are provided, and the two locking plates 2 are respectively located on both sides above the elevator car 1. A storage compartment 3 is provided above the elevator car 1, and a load-bearing plate 4 is provided above the storage compartment 3. A movable plate 5 and a transmission gear 505 are provided inside the storage compartment 3. The storage compartment 3 is a cuboid structure formed by a bottom plate 301, a side plate 302 and a top plate 303. The movable plate 5 is located between the two side plates 302. A first rack 3021 is provided on one side of the side plate 302, and a second rack 501 is provided at both ends of the movable plate 5.

[0023] The transmission gear 505 is located between the side plate 302 and the movable plate 5. The transmission gear 505 meshes with the first rack 3021 and the second rack 501. The transmission gear 505 has a rotating shaft inside. The upper and lower ends of the rotating shaft are connected to the bottom plate 301 and the top plate 303 shaft, respectively. At least four transmission gears 505 are provided. The two ends of the storage compartment 3 are open. One end of the movable plate 5 is provided with a through groove 504 and extends to the outside through the open end of the storage compartment 3. The upper end of the locking plate 2 is provided with a limiting plate 201. One end of the locking plate 2 passes through the through groove 504 to the limiting plate 201 and contacts the movable plate 5. The bottom of the top plate 303 is provided with a slide rail 3031 and a first baffle 3032. The inside of the first baffle 3032 is provided with a screw hole 3033. The top of the movable plate 5 is provided with a slider 502 and a second baffle 503. The slider 502 is located inside the slide rail 3031. The top of the bottom plate 301 is provided with a roller 3011.

[0024] The two movable plates 5 move in opposite directions inside the storage compartment 3 until the two locking plates 2 are respectively locked on both sides of the electric car 1. Finally, the movable plates 5 are connected to the storage compartment 3 with screws, so that the position of the movable plates 5 is fixed, and thus the position of the storage compartment 3 is fixed. At this time, the position of the load-bearing plate 4 above the storage compartment 3 is fixed, and personnel can carry out maintenance work under the load-bearing plate 4, which can provide effective protection for personnel, avoid the possibility of personnel being crushed and injured in the elevator failure, and further ensure the safety of personnel.

[0025] At least two load-bearing plates 4 are provided, connected by a telescopic rod 401. A load-bearing shaft 402 is provided below the load-bearing plate 4. Several positioning blocks 3022 are provided on the upper end of the side plate 302. A fixing seat 404 is provided on the side of the side plate 302. The load-bearing shaft 402 is connected to the load-bearing plate 4. A first support rod 403 and a second support rod 405 are provided at both ends of the load-bearing shaft 402. At least three positioning blocks 3022 are grouped together. A front protrusion 3023 and a rear protrusion 3023 are provided at both ends of a group of positioning blocks 3022. A crossbar 3024 is provided above a group of positioning blocks 3022. One end of the first support rod 403 is axially connected to the fixing seat 404, and the other end of the first support rod 403 is connected to the load-bearing shaft 402. The connection is as follows: one end of each of the two second support rods 405 is connected by a positioning rod 406, and the other end of each of the two second support rods 405 is connected to both ends of the load-bearing shaft 402. The positioning rod 406 is located between two adjacent positioning blocks 3022. One end of the crossbar 3024 is connected to the front protrusion 3023 shaft, and the other end of the crossbar 3024 is connected to the rear protrusion 3023 by a pin 3025. When the personnel move the positioning rod 406 towards the front protrusion 3023, the angle between the first support rod 403 and the second support rod 405 decreases, and the load-bearing plate 4 moves upward, thereby expanding the protection space for personnel. This allows the position of the load-bearing plate 4 to be adjusted according to the height of the personnel, further improving the applicability of the load-bearing plate 4 during use.

[0026] Working principle: The two movable plates 5 are moved in opposite directions inside the storage compartment 3 until the two locking plates 2 are respectively locked on both sides of the electric car 1. Finally, the movable plates 5 are connected to the storage compartment 3 with screws, so that the position of the movable plates 5 is fixed, and thus the position of the storage compartment 3 is fixed. At this time, the position of the load-bearing plate 4 above the storage compartment 3 is fixed, and personnel can carry out maintenance work under the load-bearing plate 4, which can provide effective protection for personnel and ensure their safety.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A protective device for maintenance of the top of an elevator car with a locking function, comprising an elevator car (1), characterized in that; It also includes a locking plate (2), at least two locking plates (2) are provided, and the two locking plates (2) are respectively located on both sides above the elevator car (1). A storage compartment (3) is provided above the elevator car (1), and a load-bearing plate (4) is provided above the storage compartment (3). A moving plate (5) and a transmission gear (505) are provided inside the storage compartment (3). The storage compartment (3) is a cuboid structure formed by a bottom plate (301), a side plate (302) and a top plate (303). The moving plate (5) is located between the two side plates (302). A first rack (3021) is provided on one side of the side plate (302), and a second rack (501) is provided at both ends of the moving plate (5).

2. The elevator car top maintenance protection device with locking function according to claim 1, characterized in that: The transmission gear (505) is located between the side plate (302) and the moving plate (5). The transmission gear (505) meshes with the first rack (3021) and the second rack (501). The transmission gear (505) has a rotating shaft inside. The upper and lower ends of the rotating shaft are connected to the bottom plate (301) and the top plate (303) shaft respectively. There are at least four transmission gears (505).

3. A protective device for maintenance on the top of an elevator car with a locking function as described in claim 1, characterized in that: The storage compartment (3) is open at both ends. One end of the moving plate (5) is provided with a through groove (504) and extends through the open end of the storage compartment (3) to the outside. The upper end of the locking plate (2) is provided with a limiting plate (201). One end of the locking plate (2) passes through the through groove (504) to the limiting plate (201) and contacts the moving plate (5).

4. A protective device for maintenance on the top of an elevator car with a locking function as described in claim 1, characterized in that: The top plate (303) is provided with a slide rail (3031) and a first baffle (3032) below it. The first baffle (3032) is provided with screw holes (3033) inside. The movable plate (5) is provided with a slider (502) and a second baffle (503) above it. The slider (502) is located inside the slide rail (3031). The bottom plate (301) is provided with a roller (3011) above it.

5. A protective device for maintenance on the top of an elevator car with a locking function according to claim 1, characterized in that: At least two load-bearing plates (4) are provided, and the two are connected by a telescopic rod (401). A load-bearing shaft (402) is provided below the load-bearing plate (4). Several positioning blocks (3022) are provided at the upper end of the side plate (302), and a fixing seat (404) is provided on the side of the side plate (302).

6. A maintenance protection device for the top of an elevator car with a locking function according to claim 5, characterized in that: The load-bearing shaft (402) is connected to the load-bearing plate (4). Both ends of the load-bearing shaft (402) are provided with a first support rod (403) and a second support rod (405). At least three positioning blocks (3022) are in a group. Both ends of a group of positioning blocks (3022) are provided with protrusions (3023). A crossbar (3024) is provided above a group of positioning blocks (3022).

7. A protective device for maintenance on the top of an elevator car with a locking function according to claim 6, characterized in that: One end of the first support rod (403) is connected to the fixed seat (404) shaft, and the other end of the first support rod (403) is connected to the load-bearing shaft (402). One end of each of the two second support rods (405) is connected through a positioning rod (406), and the other ends of each of the two second support rods (405) are respectively connected to both ends of the load-bearing shaft (402).

8. A protective device for maintenance on the top of an elevator car with a locking function according to claim 7, characterized in that: The positioning rod (406) is located between two adjacent positioning blocks (3022), one end of the crossbar (3024) is connected to a protrusion (3023) shaft, and the other end of the crossbar (3024) is connected to another protrusion (3023) through a pin (3025).

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