Elevator pit maintenance platform

Abstract

The invention discloses an elevator pit maintenance platform which comprises a support assembly, a maintenance platform body and a ladder assembly. The support assembly is fixed to the well wall side and used for supporting the maintenance platform. The maintenance platform comprises a telescopic rod, a first folding framework, a second folding framework, a hinge joint and a covering plate. The fixed part of the telescopic rod is fixed with the bracket assembly, and the telescopic part of the telescopic rod is connected with one end of the first folding framework; the other end of the first folding framework is hinged to one end of the second folding framework through a hinge joint. The other end of the second folding framework is hinged with the ladder assembly; the covering plate covers the upper surfaces of the first folding framework and the second folding framework; the ladder assembly comprises a crawling ladder and a supporting part; the telescopic rod is provided with a driving device, and the driving device can drive the telescopic part to enable the maintenance platform to be unfolded or folded.

Description

Technical Field

[0001] The present invention relates to the technical field of elevators, and in particular to an elevator pit maintenance platform. Background Art

[0002] When performing elevator maintenance, elevator maintenance personnel usually enter the pit area in the elevator shaft to check the equipment at the bottom of the elevator. Since the faster the elevator speed, the deeper the pit, the deep pit of high-speed elevators needs to be equipped with ladders and pit maintenance platforms.

[0003] Problems and shortcomings of the existing technology: The existing ladder and pit maintenance platform are usually fixed on the side wall of the shaft and in the pit respectively, and because the high-speed elevator pit is too deep, the pit maintenance platform is at a certain height from the pit ground. When the elevator maintenance personnel use the ladder to enter and exit the pit, in order to inspect and repair the equipment on the pit maintenance platform, they need to use the ladder again or climb manually, which is inconvenient and very dangerous.

[0004] The patent application with application number CN202010168811.8 discloses an elevator shaft pit inspection platform, including a telescopic ladder and a bearing part. The top of the telescopic ladder is hinged to the wall of the pit on the side close to the floor door, and the bearing part is fixed to the wall opposite to the side close to the floor door of the pit. After the telescopic ladder is rotated to a horizontal state around its hinge point with the wall and extended, the bottom of the telescopic ladder is placed on the bearing part to support the telescopic ladder through the bearing part. The invention can be used as a tool for entering and exiting the pit, and can also be used as a high-altitude maintenance platform, but when the ladder is rotated to a horizontal state for use as a maintenance platform, it is necessary to climb again with the help of a ladder or manually. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a technical solution for facilitating maintenance personnel to enter and exit the pit and provide a maintenance platform.

[0006] In order to solve the above technical problems, the present invention provides an elevator pit maintenance platform, comprising a bracket assembly, a maintenance platform and a ladder assembly; the bracket assembly is fixed to the side of the hoistway wall to support the maintenance platform;

[0007] The maintenance platform includes a telescopic rod, a first folding frame, a second folding frame, an articulated joint and a covering plate; the fixed portion of the telescopic rod is fixed to the bracket assembly, and the telescopic portion of the telescopic rod is connected to one end of the first folding frame; the other end of the first folding frame is hinged to one end of the second folding frame through an articulated joint; the other end of the second folding frame is hinged to the ladder assembly; the covering plate covers the upper surfaces of the first folding frame and the second folding frame; the ladder assembly includes a ladder and a supporting component; the telescopic rod has a driving device, which can drive the telescopic portion to unfold or fold the maintenance platform.

[0008] Preferably, the lower surface of the cover plate has a groove matched with the first folding frame and the second folding frame.

[0009] Preferably, the articulated joint has a sensor and a control switch; the sensor is used to detect the unfolding angle of the articulated joint, and the control switch is used to control the driving device of the telescopic rod.

[0010] Preferably, the control switch is a remote control switch.

[0011] Preferably, the ladder and the support member have lockable moving wheels at the bottom.

[0012] Preferably, the bracket assembly is fixed on the side of the hoistway wall close to the landing door.

[0013] Preferably, the support assembly comprises a support column and a bending plate.

[0014] Preferably, the cover panel is foldable.

[0015] Compared with the prior art, the present invention combines a ladder and a maintenance platform, which can be flexibly changed according to the needs of elevator maintenance personnel, without the need to climb with the help of a ladder again; and can be automatically unfolded and folded through a control switch without manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0017] Figure 1 and Figure 2 This is a schematic diagram of the structure of the elevator pit maintenance platform after it is unfolded in Example 1;

[0018] Figure 3 is a schematic diagram of the detailed structure of the bracket assembly of Example 1;

[0019] Figure 4 It is a schematic diagram of the structure of the elevator pit inspection platform of Example 1 after folding. DETAILED DESCRIPTION

[0020] The following describes the implementation methods of the present invention through specific specific embodiments, and those skilled in the art can fully understand other advantages and technical effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through different specific implementation methods, and the details in this specification can also be applied based on different viewpoints, and various modifications or changes can be made without deviating from the overall design concept of the invention. It should be noted that the following embodiments and the features in the embodiments can be combined with each other in the absence of conflict. The following exemplary embodiments of the present invention can be implemented in a variety of different forms and should not be interpreted as being limited to the specific embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present invention thorough and complete, and to fully convey the technical solutions of these exemplary specific embodiments to those skilled in the art.

[0021] Example 1

[0022] like Figures 1 to 4 As shown, this embodiment provides an elevator pit maintenance platform, including a bracket assembly 1, a maintenance platform 2 and a ladder assembly 3;

[0023] The support assembly 1 is fixed to the side of the hoistway wall close to the landing door by expansion screws, and is used to support the maintenance platform 2;

[0024] The maintenance platform 2 includes a telescopic rod 6, a first folding frame 21, a second folding frame 22, an articulated joint 8 and a covering plate 7; the fixed portion of the telescopic rod 6 is fixed to the bracket assembly 1, and the telescopic portion of the telescopic rod 6 is connected to one end of the first folding frame 21; the other end of the first folding frame 21 is hinged to one end of the second folding frame 22 through the articulated joint 8; the other end of the second folding frame 22 is hinged to the ladder assembly 3; the covering plate 7 covers the upper surfaces of the first folding frame 21 and the second folding frame 22; the covering plate 7 is foldable.

[0025] The ladder assembly 3 comprises a ladder 9 and a supporting component 10; the bottoms of the ladder 9 and the supporting component 10 are provided with lockable moving wheels.

[0026] The support assembly 1 includes a support column 4 and a bending plate 5. The telescopic rod 6 has a driving device, which can drive the telescopic part to unfold or fold the maintenance platform 2. The driving device can be a motor or a hydraulic device.

[0027] The lower surface of the cover plate 7 has grooves adapted to the first folding frame 21 and the second folding frame 22 , so that the cover plate 7 can be accurately placed on the folding frames without displacement.

[0028] The articulated joint 8 has a safety lock design, a sensor and a remote control switch; the sensor is used to detect the unfolding angle of the articulated joint, and the control switch is used to control the driving device of the telescopic rod. When the foldable cover plate 7 is opened and the articulated joint 8 is unfolded 180 degrees and straightened, the pit inspection platform can be used for maintenance personnel to stand and work.

[0029] The folded pit inspection platform is as follows Figure 4 As shown, the elevator maintenance personnel can enter and exit the pit. When the elevator car bottom parts need to be repaired, the maintenance personnel can remotely unfold the pit inspection platform and use the ladder on the platform to directly climb onto the maintenance platform. The operation is convenient and quick. After the inspection work is completed, the maintenance personnel can unlock the ladder 9 and the bottom of the support component 10, and remotely control the maintenance platform to fold up again. Figure 4 As shown, after relocking the moving wheels of the ladder 9 and the supporting member 10, climb out of the pit.

[0030] The present invention has been described in detail above through specific implementation modes and embodiments, but these do not constitute limitations of the present invention. Without departing from the principles of the present invention, those skilled in the art may also make many variations and improvements, which should also be regarded as the protection scope of the present invention.

Claims

1. An elevator pit inspection platform, characterized in that: Includes bracket assembly, maintenance platform and ladder assembly; The support assembly is fixed to the side of the hoistway wall and is used to support the maintenance platform; The maintenance platform comprises a telescopic rod, a first folding frame, a second folding frame, an articulated joint and a covering plate; the fixed portion of the telescopic rod is fixed to the bracket assembly, and the telescopic portion of the telescopic rod is connected to one end of the first folding frame; the other end of the first folding frame is articulated to one end of the second folding frame through an articulated joint; the other end of the second folding frame is articulated to the ladder assembly; the covering plate covers the upper surfaces of the first folding frame and the second folding frame; The ladder assembly comprises a ladder and a supporting component; The telescopic rod has a driving device, and the driving device can drive the telescopic part to make the maintenance platform unfold or fold.

2. The elevator pit maintenance platform according to claim 1, characterized in that: The lower surface of the cover plate has a groove matched with the first folding frame and the second folding frame.

3. The elevator pit maintenance platform according to claim 1, characterized in that: The articulated joint has a sensor and a control switch; the sensor is used to detect the unfolding angle of the articulated joint, and the control switch is used to control the driving device of the telescopic rod.

4. The elevator pit inspection platform according to claim 3, characterized in that: The control switch is a remote control switch.

5. The elevator pit inspection platform according to claim 1, characterized in that: The bottoms of the ladder and the supporting components are provided with lockable moving wheels.

6. The elevator pit inspection platform according to claim 1, characterized in that: The bracket assembly is fixed on the side of the hoistway wall close to the landing door.

7. The elevator pit inspection platform according to claim 1, characterized in that: The support assembly includes a support column and a bending plate.

8. The elevator pit maintenance platform according to claim 1, characterized in that: The cover panel is foldable.

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