An elevator pit maintenance protection device convenient to install

Abstract

The utility model relates to an elevator pit overhauling protection device convenient to install to protect column, elevator guide rail, elevator car and concave frame as the main part, the back of protection column is equipped with one stage embrace lock frame and two stage embrace lock frame, one stage embrace lock frame and two stage embrace lock frame are fixedly connected with protection column, one stage embrace lock frame and two stage embrace lock frame are equipped with adjusting screw, concave frame, fixed pin and involute lock plate respectively, the concave frame is two groups fixedly connected in the middle of one stage embrace lock frame and two stage embrace lock frame respectively, and the involute lock plate is movably connected on each group of concave frame through fixed pin, spring is equipped between the involute lock plate and concave frame, the utility model discloses through the adjustment of adjusting screw on one stage embrace lock frame and two stage embrace lock frame, can embrace lock on the elevator guide rail of different model roughness, cooperate the involute lock plate to press on the elevator guide rail after, protection column locks up on the elevator guide rail with the involute lock plate simultaneously, and the installation is convenient, and the use is convenient.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, and specifically to an elevator pit inspection and protection device that is easy to install. Background Technology

[0002] With the widespread use of elevators, elevator maintenance has become increasingly important. During elevator maintenance, some unexpected events may occur, threatening the safety of maintenance personnel. For example, a sudden power outage, misoperation by maintenance personnel, uneven weight distribution, or failure of the traction machine brake may all cause the elevator to suddenly descend to the pit, thereby injuring or even killing maintenance personnel.

[0003] To ensure the safety of maintenance personnel, protective devices need to be installed in the elevator pit. For example, Chinese Patent Publication No. CN202643031U describes an elevator pit maintenance protection device, which includes a top rope block, a rotatable rope pressing block, a hook with two positions, and a speed governor wire rope connected to the elevator safety gear. The speed governor wire rope is located between the movable end of the rope pressing block and the top rope block, and the rope pressing block can be positioned at any position of the hook.

[0004] The protective device provided by this patent has a relatively complex structure. Its protection process relies on the cooperation between a hook with two positions and a top rope block, which has poor reliability. Moreover, the installation of this protective device is relatively difficult. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides an elevator pit maintenance and protection device that is easy to install.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] An easy-to-install elevator pit maintenance protection device comprises a protective column, elevator guide rails, an elevator car, and a concave frame as its main components. The protective column has a primary locking frame and a secondary locking frame on its back, which are fixedly connected to the protective column. Each primary and secondary locking frame is equipped with an adjusting screw, a concave frame, a fixing pin, and an involute locking plate. Two adjusting screws are symmetrically engaged on each frame. Two sets of concave frames are fixedly connected between the primary and secondary locking frames. The involute locking plates are movably connected to each set of concave frames via fixing pins. A compression spring is provided between the involute locking plate and the concave frame.

[0008] Preferably, the primary locking frame and the secondary locking frame are fixedly arranged vertically at the upper and lower ends of the protective column.

[0009] Preferably, the primary and secondary locking frames protrude on both sides and are recessed in the middle, thus forming an encircling shape.

[0010] Preferably, the compression spring presses the involute locking plate against the elevator guide rail with its elastic force.

[0011] Preferably, the spacing between a pair of adjusting screws on the primary and secondary locking frames is adjusted by rotation, thereby allowing the adjusting screws to be secured to the elevator guide rail.

[0012] Preferably, after the involute locking plate presses against the elevator guide rail, the protective column locks itself onto the elevator guide rail simultaneously, following the involute locking plate.

[0013] The beneficial effects of this utility model are: by adjusting the adjusting screws on the primary and secondary locking frames, it can lock onto elevator guide rails of different thicknesses. At the same time, after the involute locking plate presses against the elevator guide rail, the protective column follows the involute locking plate and locks itself onto the elevator guide rail. The design is ingenious, easy to install, and convenient to use. Attached Figure Description

[0014] Figure 1 This is a perspective view of a convenient elevator pit maintenance and protection device.

[0015] Figure 2 for Figure 1 Enlarged view of a portion of point A in the middle.

[0016] Figure 3 This is an isometric drawing of an elevator pit maintenance and protection device that is easy to install.

[0017] Figure 4 for Figure 3 Enlarged view of section B in the middle.

[0018] Figure 5 for Figure 4 Enlarged view of a section at point C.

[0019] In the diagram: 1. Protective column; 2. Elevator guide rail; 21. Elevator car; 3. Primary locking frame; 4. Secondary locking frame; 5. Concave frame; 6. Adjusting screw; 7. Concave frame; 8. Fixing pin; 9. Involute linear locking plate; 91. Compression spring. Detailed Implementation

[0020] To make the technical solution of this utility model clearer, the present utility model will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that the terms "front", "rear", "left", "right", "up" and "down" used in the following description refer to the directions in the accompanying drawings, and the terms "inner" and "outer" refer to the directions toward or away from the geometric center of a specific component, respectively.

[0021] like Figure 1-5As shown, the present invention discloses an easy-to-install elevator pit maintenance and protection device, which mainly consists of a protective column 1, an elevator guide rail 2, an elevator car 21, and a concave frame 5. The protective column 1 has a primary locking frame 3 and a secondary locking frame 4 on its back, which are fixedly connected to the protective column 1. The primary locking frame 3 and the secondary locking frame 4 are respectively equipped with adjusting screws 6, concave frames 7, fixing pins 8, and involute locking plates 9. The adjusting screws 6 on the primary locking frame 3 and the secondary locking frame 4 are symmetrically engaged in two positions. Two sets of concave frames 7 are fixedly connected in the middle of the primary locking frame 3 and the secondary locking frame 4. The involute locking plates 9 are movably connected to each set of concave frames 7 via fixing pins 8. A compression spring 91 is provided between the involute locking plate 9 and the concave frame 7.

[0022] In this embodiment, the primary locking frame 3 and the secondary locking frame 4 are fixedly arranged vertically at the upper and lower ends of the protective column 1.

[0023] In this embodiment, the primary locking frame 3 and the secondary locking frame 4 protrude on both sides and are recessed in the middle, thus forming an encircling shape.

[0024] In this embodiment, the compression spring 91 presses the involute locking plate 9 against the elevator guide rail 2 with its elastic force.

[0025] In this embodiment, the spacing between a pair of adjusting screws 6 on each of the primary locking frame 3 and the secondary locking frame 4 is adjusted by rotation, so that the adjusting screws 6 can be held on the elevator guide rail 2.

[0026] In this embodiment, after the involute locking plate 9 presses against the elevator guide rail 2, the protective column 1 locks itself onto the elevator guide rail 2 along with the involute locking plate 9.

[0027] When using

[0028] When maintenance personnel need to descend to the pit, they must first install the protective column 1 on the elevator guide rail 2. This way, if the elevator suddenly malfunctions and descends, it will fall onto the pre-installed protective column 1 and will not injure the maintenance personnel.

[0029] Furthermore, during the installation of the protective column 1, the first-level locking bracket 3 and the second-level locking bracket 4 are first pressed into the elevator guide rail 2. At the same time, the adjustment screw 6 can be adjusted to lock onto elevator guide rails 2 of different thicknesses. Further, after the involute locking plate 9 is pressed against the elevator guide rail 2, the protective column 1 is locked onto the elevator guide rail 2 along with the involute locking plate 9.

[0030] Furthermore, when it is necessary to remove the protective column 1, first loosen the adjusting screw 6, and then the involute linear locking plate 9 can be detached from the elevator guide rail 2. It is easy to install and convenient to use.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An easy-to-install elevator pit maintenance and protection device, characterized in that: The system consists of a protective column, elevator guide rails, an elevator car, and a concave frame. The protective column has a primary locking frame and a secondary locking frame on its back, which are fixedly connected to the protective column. Each primary and secondary locking frame has an adjusting screw, a concave frame, a fixing pin, and an involute locking plate. Two adjusting screws are symmetrically engaged on each frame. Two sets of concave frames are fixedly connected between the primary and secondary locking frames. The involute locking plates are movably connected to each set of concave frames via fixing pins. A compression spring is provided between the involute locking plate and the concave frame.

2. The elevator pit maintenance and protection device according to claim 1, characterized in that: The primary and secondary locking frames are fixedly arranged vertically at the upper and lower ends of the protective column.

3. The elevator pit maintenance and protection device according to claim 1, characterized in that: The primary and secondary locking frames protrude on both sides and are recessed in the middle, thus forming an encircling shape.

4. The elevator pit maintenance and protection device according to claim 1, characterized in that: The compression spring uses its elastic force to keep the involute locking plate pressed against the elevator guide rail.

5. The elevator pit maintenance and protection device according to claim 1, characterized in that: The adjustment screws on the primary and secondary locking frames are adjusted by rotating to change the spacing between a pair of adjustment screws, so that the adjustment screws can be held on the elevator guide rail.

6. The elevator pit maintenance and protection device according to claim 1, characterized in that: After the involute locking plate presses against the elevator guide rail, the protective column locks itself onto the elevator guide rail simultaneously, following the involute locking plate.

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