Safety limiting device for elevator fault detection

Abstract

The utility model discloses a safety limiting device for elevator fault detection, and relates to the technical field of elevator fault detection. The device comprises a bottom plate, a lifting assembly and supporting assemblies, a control box is fixedly connected to the top of the bottom plate, supporting boxes are fixedly connected to the two sides of the rear side of the top of the bottom plate, the lifting assembly comprises two supporting plates, the bottoms of the supporting plates are fixedly connected with the bottom plate, and supporting frames are movably connected to the bottoms of the supporting plates. According to the lifting device, the lift car of an elevator can be lifted through the lifting assembly, the lift car of the elevator is stably limited, the lift car of the elevator is lifted upwards by a certain distance through the traction rope, the supporting plate enters an elevator shaft and lifts the lift car, and the steel wire rope is wound through cooperation of the motor and the winding drum; after the steel wire rope is tensioned, the supporting frame is controlled to make contact with the shaft wall of the elevator shaft, the supporting effect of the supporting plate on the lift car is improved through the supporting frame, and safety in the elevator troubleshooting process is improved.

Description

Technical Field

[0001] This utility model belongs to the field of elevator fault detection technology, and in particular relates to a safety limit device for elevator fault detection. Background Technology

[0002] Elevator maintenance refers to the process of regularly inspecting, maintaining, and repairing elevators. This includes replacing worn parts and adjusting mechanical and electrical systems to ensure normal operation. Elevator maintenance aims to prevent safety accidents and protect passenger safety. Professional maintenance personnel use specialized tools and techniques to perform maintenance tasks. Regular maintenance can extend the service life of elevators and reduce unexpected malfunctions.

[0003] Currently, elevator fault detection requires stopping the elevator on a certain floor, then using an elevator key to open the elevator, and then opening the top panel to inspect the fault at the top connection of the elevator. However, when the elevator is suspended in the air, its entire weight is borne by the traction rope. If the traction rope breaks during the inspection process, it will cause great danger, especially in the fault detection and maintenance of elevators in old residential areas, where there is a risk of falling from a height, which is not conducive to use.

[0004] To address this issue, we provide a safety limit device for elevator fault detection to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a safety limit device for elevator fault detection. By cooperating with the lifting component and the support component, it solves the problem in the prior art that the elevator cannot be stably and safely limited during fault inspection, and the elevator remains suspended in the air during the inspection process, which is highly dangerous.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a safety limit device for elevator fault detection, comprising a base plate, a lifting assembly, and a support assembly. A control box is fixedly connected to the top of the base plate, and support boxes are fixedly connected to both sides of the rear side of the top of the base plate. The lifting assembly includes two support plates, the bottom of which is fixedly connected to the base plate, and a support frame is movably connected to the bottom of each support plate. A motor is fixedly connected to the bottom of the inner cavity of the control box, and a winding drum is fixedly connected to both sides of the motor's output end. A steel wire rope is wound around the surface of the winding drum, and the front end of the steel wire rope passes through the support plate and is fixedly connected to the support frame. Limiting mechanisms are fixedly connected to both sides of the rear side of the control box. The support assembly includes a limiting plate, the bottom of which contacts the bottom of the inner cavity of the support box, and a screw is movably connected to the top of the limiting plate. The top of the screw passes through the support box and is movably connected to a bending rod. A top rod is movably connected to the side of the bending rod away from the screw, and fixing sleeves are threaded to both sides of the surface of the bending rod.

[0008] The present invention is further configured such that the limiting mechanism includes two electric cylinders, the front side of the electric cylinder extends through the inner cavity of the control box and is fixedly connected to a toothed plate, a gear is fixedly connected to one side of the surface of the winding drum, the rear side of the gear meshes with the toothed plate, the electric cylinder can control the position of the toothed plate, the gear can mesh with the toothed plate, thereby preventing the winding drum from rotating, and the support frame can be limited and fixed by the pulling of the wire rope.

[0009] The present invention is further configured such that an anti-slip plate is fixedly connected to the bottom of the support frame, and an anti-slip protrusion is provided on the rear side of the anti-slip plate. The anti-slip plate can increase the contact area between the support frame and the elevator shaft wall, and the anti-slip protrusion can increase the anti-slip effect of the anti-slip plate and improve the stability of the support frame.

[0010] The present invention is further provided that both sides of the rear side of the bottom of the tray are fixedly connected to triangular support plates, and the rear side of the triangular support plates is fixedly connected to the base plate. The triangular support plates can increase the stability of the connection between the tray and the base plate.

[0011] The present invention is further provided that handles are fixedly connected to both sides of the control box, and through holes for use with steel wire rope are provided on both sides of the front side of the control box. The handles make it convenient for the staff to lift the control box and the base plate to move them to their place of use, and the through holes make it convenient to retract and extend the steel wire rope.

[0012] The present invention is further configured such that the side of the winding drum away from the motor is movably connected to the inner wall of the control box, and a turntable is fixedly connected to the surface of the screw and the outside of the support box. The turntable allows the operator to easily rotate the screw, so that the screw controls the top rod and the top plate to move upward and provide stable support for the bottom plate.

[0013] The present invention is further configured such that the top of the support box is provided with a threaded hole for use with the screw, and both sides of the bending rod are movably connected to the screw and the top rod through a rotating shaft. The threaded hole facilitates the use of the screw, and the rotating shaft facilitates the folding and storage of the top rod and the bending rod.

[0014] The present invention is further configured such that a top plate is movably connected to the top of the top rod, and clamps that cooperate with the top rod are fixedly connected to the bottom of the opposite sides of the two support boxes. The top plate can fit against the roof, increasing the contact area between the top rod and the roof, and the clamps can limit and fix the top rod.

[0015] The present invention has the following beneficial effects.

[0016] 1. This utility model uses a lifting component to lift the elevator car, stabilizing and limiting its position. A traction rope is used to raise the elevator car a certain distance, allowing the support plate to enter the elevator shaft and lift the car. A motor and a winding drum work together to wind up the steel wire rope. Once the steel wire rope is taut, the support frame is brought into contact with the shaft wall. The support frame enhances the support effect of the support plate on the car, increasing safety during elevator malfunction repairs.

[0017] 2. This utility model provides stable support for the base plate through the support assembly, preventing the base plate from tilting. Two fixing sleeves are used to keep the bending rod and top rod perpendicular to the screw. After locking the fixing sleeves, the turntable is rotated, and the screw is moved upward through the turntable until the top plate contacts the roof. The cooperation of the top rod and the screw supports one side of the base plate, preventing the base plate from tilting when supporting the elevator car, and further increasing the support and limiting effect on the elevator car. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 A perspective view of a safety limit device for elevator fault detection;

[0020] Figure 2 A side view of a safety limit device for elevator fault detection;

[0021] Figure 3 A cross-sectional view of the control box in a safety limit device for elevator fault detection;

[0022] Figure 4 A cross-sectional view of the support box in a safety limit device for elevator fault detection;

[0023] Figure 5This is a schematic diagram of a screw, bending rod, fixing sleeve, and fixed rod in a safety limit device for elevator fault detection.

[0024] In the attached diagram: 1. Base plate; 2. Control box; 3. Support box; 4. Lifting assembly; 41. Support plate; 42. Support frame; 43. Motor; 44. Winding drum; 45. Wire rope; 46. Limiting mechanism; 5. Support assembly; 51. Limiting plate; 52. Screw; 53. Bending rod; 54. Top rod; 55. Fixing sleeve; 461. Electric cylinder; 462. Tooth plate; 463. Gear; 6. Anti-slip plate; 7. Turntable; 8. Top plate; 9. Clamp. Detailed Implementation

[0025] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1

[0027] Please see Figure 1-5 This utility model is a safety limit device for elevator fault detection, including a base plate 1, a lifting assembly 4, and a support assembly 5. A control box 2 is fixedly connected to the top of the base plate 1, and support boxes 3 are fixedly connected to both sides of the rear top of the base plate 1. The lifting assembly 4 includes two support plates 41, the bottom of which is fixedly connected to the base plate 1. A support frame 42 is movably connected to the bottom of the support plates 41. A motor 43 is fixedly connected to the bottom of the inner cavity of the control box 2, and take-up drums 44 are fixedly connected to both sides of the output end of the motor 43. The surface of the take-up drums 44 is wound with... There is a steel wire rope 45, the front end of which passes through the support plate 41 and is fixedly connected to the support frame 42. Limiting mechanisms 46 are fixedly connected to both sides of the rear side of the control box 2. The support assembly 5 includes a limiting plate 51. The bottom of the limiting plate 51 contacts the bottom of the inner cavity of the support box 3. A screw 52 is movably connected to the top of the limiting plate 51. The top of the screw 52 passes through the support box 3 and is movably connected to a bending rod 53. A top rod 54 is movably connected to the side of the bending rod 53 away from the screw 52. Fixed sleeves 55 are threadedly connected to both sides of the surface of the bending rod 53.

[0028] Specifically: the support plate 41 can lift and support the elevator car; the support frame 42 can contact the elevator shaft wall to form a triangular support with the support plate 41, thereby improving the stability of the support plate 41 in limiting the car; the motor 43 can control the winding drum 44 to rotate; the winding drum 44 can wind or release the wire rope 45; the screw 52 can control the working height of the top rod 54 and the top plate 8; the bending rod 53 can bend and store the top rod 54; and the fixing sleeve 55 can install and fix the bending rod 53 and the top rod 54.

[0029] Example 2

[0030] Please see Figure 1-5 Based on Embodiment 1, the limiting mechanism 46 includes two electric cylinders 461. The front side of each electric cylinder 461 extends into the inner cavity of the control box 2 and is fixedly connected to a toothed plate 462. A gear 463 is fixedly connected to one side of the surface of the take-up drum 44, and the rear side of the gear 463 meshes with the toothed plate 462. An anti-slip plate 6 is fixedly connected to the bottom of the support frame 42, and an anti-slip protrusion is provided on the rear side of the anti-slip plate 6. Triangular support plates are fixedly connected to both sides of the rear side of the bottom of the support plate 41, and the rear side of the triangular support plates is fixedly connected to the base plate 1. Both sides of the control box 2 are fixedly connected to... The handle and the two sides of the front of the control box 2 are provided with through holes for use with the wire rope 45. The side of the winding drum 44 away from the motor 43 is movably connected to the inner wall of the control box 2. The surface of the screw 52 and the outside of the support box 3 are fixedly connected to the turntable 7. The top of the support box 3 is provided with a threaded hole for use with the screw 52. The two sides of the bending rod 53 are movably connected to the screw 52 and the top rod 54 through a rotating shaft. The top of the top rod 54 is movably connected to the top plate 8. The bottom of the two support boxes 3 on opposite sides is fixedly connected with clamps 9 for use with the top rod 54.

[0031] Specifically: the electric cylinder 461 controls the position of the toothed plate 462, the gear 463 meshes with the toothed plate 462 to prevent the winding drum 44 from rotating, the wire rope 45 pulls to limit and fix the support frame 42, the anti-slip plate 6 increases the contact area between the support frame 42 and the elevator shaft wall, the anti-slip ridges increase the anti-slip effect of the anti-slip plate 6 and improve the stability of the support frame 42, the triangular support plate increases the stability of the connection between the support plate 41 and the base plate 1, and the handle makes it convenient to use. The staff lifts the control box 2 and the base plate 1 to move them to their new positions. The through hole facilitates the winding and unwinding of the wire rope 45. The turntable 7 allows the staff to easily rotate the screw 52, ​​which controls the top rod 54 and the top plate 8 to move upwards, providing stable support for the base plate 1. The threaded hole facilitates the use of the screw 52. The rotating shaft facilitates the folding and storage of the top rod 54 and the bending rod 53. The top plate 8 can fit snugly against the roof, increasing the contact area between the top rod 54 and the roof. The clamp 9 can limit and fix the top rod 54.

[0032] The working principle of this utility model is as follows: The elevator car is lifted a certain distance using the elevator's traction rope. The support plate 41 is then inserted into the elevator shaft, supporting the bottom of the car. Simultaneously, the motor 43 is activated. The motor 43, in conjunction with the winding drum 44, winds up the wire rope 45. Once wound up, the wire rope 45 pulls the support frame 42, causing one end of the support frame 42 to contact the shaft wall. The support frame 42 and the support plate 41 form a triangular support, improving the limiting effect on the elevator car. Subsequently, the top rod 54 is straightened and bent. Rod 53 is positioned vertically, just like screw 52. Two fixing sleeves 55 are rotated to fix the bent rod 53 and top rod 54. Turntable 7 is rotated to control the rotation of screw 52. Screw 52 rotates and moves out of the inner cavity of support box 3, making top plate 8 contact the roof. Top rod 54 and screw 52 support one side of bottom plate 1 to prevent bottom plate 1 from tilting when support plate 41 limits the car, further improving the limiting effect on the car and preventing the car from falling.

[0033] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A safety limit device for elevator fault detection, comprising a base plate (1), a lifting assembly (4), and a support assembly (5), characterized in that: A control box (2) is fixedly connected to the top of the base plate (1), and support boxes (3) are fixedly connected to both sides of the rear side of the top of the base plate (1). The lifting assembly (4) includes two support plates (41). The bottom of the support plate (41) is fixedly connected to the base plate (1). A support frame (42) is movably connected to the bottom of the support plate (41). A motor (43) is fixedly connected to the bottom of the inner cavity of the control box (2). A winding drum (44) is fixedly connected to both sides of the output end of the motor (43). A steel wire rope (45) is wound on the surface of the winding drum (44). The front end of the steel wire rope (45) passes through the support plate (41) and is fixedly connected to the support frame (42). Limiting mechanisms (46) are fixedly connected to both sides of the rear side of the control box (2). The support assembly (5) includes a limiting plate (51), the bottom of which contacts the bottom of the inner cavity of the support box (3), and a screw (52) is movably connected to the top of the limiting plate (51). The top of the screw (52) passes through the support box (3) and is movably connected to a bent rod (53). A top rod (54) is movably connected to the side of the bent rod (53) away from the screw (52). Fixed sleeves (55) are threadedly connected to both sides of the surface of the bent rod (53).

2. The safety limit device for elevator fault detection according to claim 1, characterized in that: The limiting mechanism (46) includes two electric cylinders (461). The front side of the electric cylinder (461) extends into the inner cavity of the control box (2) and is fixedly connected to a toothed plate (462). A gear (463) is fixedly connected to one side of the surface of the winding drum (44), and the rear side of the gear (463) meshes with the toothed plate (462).

3. The safety limit device for elevator fault detection according to claim 1, characterized in that: The bottom of the support frame (42) is fixedly connected to an anti-slip plate (6), and the rear side of the anti-slip plate (6) is provided with an anti-slip protrusion.

4. The safety limit device for elevator fault detection according to claim 1, characterized in that: Both sides of the bottom rear side of the tray (41) are fixedly connected to triangular support plates, and the rear side of the triangular support plates is fixedly connected to the base plate (1).

5. A safety limit device for elevator fault detection according to claim 1, characterized in that: The control box (2) is fixedly connected to handles on both sides, and the front sides of the control box (2) are provided with through holes for use with steel wire rope (45).

6. A safety limit device for elevator fault detection according to claim 1, characterized in that: The side of the winding drum (44) away from the motor (43) is movably connected to the inner wall of the control box (2), and a turntable (7) is fixedly connected to the surface of the screw (52) and located on the outside of the support box (3).

7. A safety limit device for elevator fault detection according to claim 1, characterized in that: The top of the support box (3) is provided with a threaded hole for use with the screw (52), and both sides of the bent rod (53) are movably connected to the screw (52) and the top rod (54) through a rotating shaft.

8. A safety limit device for elevator fault detection according to claim 1, characterized in that: The top of the top rod (54) is movably connected to the top plate (8), and the bottom of the two support boxes (3) on opposite sides are fixedly connected to clamps (9) that cooperate with the top rod (54).

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