Elevator maintenance device

Abstract

The utility model relates to the technical field of elevator overhauling operation stopping equipment, in particular to an elevator overhauling device which comprises an overhauling box body assembled on an upper beam of a lift car, a U-shaped section bar frame is arranged in the overhauling box body, a first switch group is assembled on the left side of the section bar frame, and a second switch group is assembled on the right side of the section bar frame. A transverse hole position for inserting the bolt rod is formed in the same horizontal plane of the bending plate and the profile frame; two vertical hole sites are formed in the bottom surface of the profile frame at intervals; two clamping grooves are formed in the surface layer of the bolt rod at intervals; the baffle plate can slide to the position of the clamping groove along the vertical hole position; the upper end of the first switch group and the upper end of the second switch group are both provided with contact switches, and the bolt rod slides in the horizontal direction. According to the design structure, double protection is achieved on the elevator through the mechanical safety switch and the electrical safety switch, and accidental starting of the elevator during overhauling is avoided; and when the lift car is overhauled or maintained, the lift car is reliably positioned, and the lift car is prevented from accidentally moving and hurting workers.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator maintenance and stopping equipment, in particular to an elevator maintenance device. Background Art

[0002] When the elevator adopts a machine roomless elevator, the current technology usually adds a bracket to the car frame, on which a slidable latch rod is provided, and a fixing plate is installed on the guide rail, and a latch hole is opened on the fixing plate. When the elevator needs to be inspected or maintained, in order to avoid accidental movement of the elevator, the staff needs to insert the latch rod into the latch hole to fix the car and the guide rail. There is no relatively safe fixing device on the latch rod. When the latch rod moves accidentally, it will disengage from the latch hole, causing harm to the staff. Utility Model Content

[0003] The utility model aims to overcome the above-mentioned shortcomings and provide a technical solution that can solve the above-mentioned problems.

[0004] An elevator maintenance device comprises an inspection box body assembled on an upper beam of a car, a U-shaped profile frame is arranged inside the inspection box body, a first switch group is assembled on the left side of the profile frame, and a second switch group is assembled on the right side of the profile frame; the first switch group and the second switch group are assembled by a Z-shaped bending plate; a latch rod is also included, and a transverse hole for inserting the latch rod is arranged on the same horizontal plane as the bending plate and the profile frame; two vertical holes are arranged at intervals on the bottom surface of the profile frame; two slots are arranged at intervals on the surface of the latch rod, and the slot notch Towards the vertical hole position; also includes a baffle, the baffle can slide along the vertical hole position to the slot position; wherein, the first switch group and the second switch group are provided with contact switches at the upper ends, and when the latch rod slides in the horizontal direction and the baffle slides into the front slot, the latch rod touches the contact switch on the second switch group, and the contact switch on the first switch group is in the slot; when the latch rod slides in the horizontal direction and the baffle slides into the rear slot, the latch rod touches the contact switch on the first switch group, and the contact switch on the second switch group is in the slot.

[0005] Furthermore, it also includes a latch positioning plate installed on the car guide rail, and the latch positioning plate is provided with a positioning hole for accommodating the insertion of the latch rod towards the inspection box body.

[0006] Furthermore, the side edge of the slot is configured as a slope.

[0007] The beneficial effects of the utility model are:

[0008] The mechanical and electrical safety switches provide double protection for the elevator to avoid accidental start-up of the elevator during maintenance; and the car can be reliably positioned during maintenance to prevent accidental movement of the car and cause harm to the staff.

[0009] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a top view of the utility model.

[0011] Figure 2 It is a front view of the utility model.

[0012] Figure 3 This is a schematic diagram of the maintenance box structure.

[0013] The accompanying drawings in the figure are marked as: maintenance box body-1, profile frame-2, first switch group-3, second switch group-4, bending plate-5, latch rod-6, horizontal hole position-7, vertical hole position-8, card slot-9, baffle-10, contact switch-11, latch positioning plate-12, positioning hole-13, inclined surface-14. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] See also Figures 1 to 3 , including an inspection box body 1 assembled on the upper beam of the car, a U-shaped profile frame 2 is provided inside the inspection box body 1, a first switch group 3 is assembled on the left side of the profile frame 2, and a second switch group 4 is assembled on the right side of the profile frame 2; the first switch group 3 and the second switch group 4 are assembled through a Z-shaped bending plate 5; it also includes a latch rod 6, and a horizontal hole 7 for inserting the latch rod 6 is provided on the same horizontal plane as the bending plate 5 and the profile frame 2; two vertical holes 8 are provided at intervals on the bottom surface of the profile frame 2; two card grooves 9 are provided at intervals on the surface of the latch rod 6, and the notch of the card groove 9 faces the vertical hole 8; it also includes There is a baffle 10, and the baffle 10 can slide along the vertical hole 8 to the position of the card slot 9; wherein, the upper ends of the first switch group 3 and the second switch group 4 are both provided with a contact switch 11, and when the latch rod 6 slides in the horizontal direction, when the baffle 10 slides into the front card slot 9, the latch rod 6 touches the contact switch 11 on the second switch group 4, and the contact switch 11 on the first switch group 3 is in the card slot 9; when the latch rod 6 slides in the horizontal direction, when the baffle 10 slides into the rear card slot 9, the latch rod 6 touches the contact switch 11 on the first switch group 3, and the contact switch 11 on the second switch group 4 is in the card slot 9;

[0016] The design structure is mainly composed of a profile frame 2, a latch rod 6, a baffle 10 and a contact switch 11. The profile frame 2 and the outer shell together constitute an inspection box body 1. As for the appearance design of the profile frame 2, the overall design is U-shaped, and the first switch group 3 and the second switch group 4 are assembled on the outside of its two side parts, and the first switch group 3 and the second switch group 4 are assembled through a Z-shaped bending plate 5. Screws are used at the two panels of the bending plate 5 to fix the bending plate 5 on the profile frame 2 from the opposite direction, and the first switch group 3 and the second switch group 4 are fixed on the bending plate 5, thereby minimizing the modularity of its design.

[0017] A transverse hole 7 is provided in the same horizontal plane direction as the bending plate 5 and the profile frame 2, and a vertical hole 8 is provided in the vertical direction of the profile frame 2. The transverse hole 7 and the vertical hole 8 cooperate with the latch rod 6 and the baffle 10 respectively to realize the corresponding positioning and fixing of the latch rod 6 and the electric control stop of the elevator. Specifically, when the elevator needs to be repaired or maintained, when the staff moves the latch forward and backward and inserts the baffle 10 into the corresponding front end slot 9, the right surface of the latch rod 6 contacts the second switch group 4 at this time, and touches and triggers its contact switch 11. At this time, the elevator is connected to the second switch group 4 by an electrical signal, so that the elevator is in a stopped state, that is, the safety circuit of the elevator is disconnected. When the elevator is running, when the staff moves the latch forward and backward and inserts it into the corresponding rear end slot 9 through the baffle 10, the left surface of the latch rod 6 contacts the first switch group 3 and touches and triggers its contact switch 11. At this time, the elevator is connected to the first switch group 3 through an electrical signal, so that the elevator is in operation, that is, the elevator's safety circuit is connected, and the front and rear slots 9 can be used to identify the start and stop of the elevator.

[0018] In order to further fix the latch rod 6, a latch positioning plate 12 is provided on the car guide rail, and a positioning hole 13 for accommodating the latch rod 6 is provided on the latch positioning plate 12 facing the inspection box body 1. The working principle is: when the corresponding front end slot 9 is inserted through the baffle 10, the latch rod 6 touches and triggers its contact switch 11 to disconnect the safety circuit. At this time, the latch rod 6 is inserted into the positioning hole 13. In this way, the latch rod 6 can be prevented from accidentally slipping and causing harm to the staff.

[0019] In order to realize the transition conversion of the first switch group 3 and the second switch group 4 in the slot 9 and the surface of the latch rod 6, the left and right side edges of the slot 9 are set as inclined surfaces 14, that is, the contact switches 11 on the first switch group 3 and the second switch group 4 can slide on the inclined surfaces 14, thereby sliding into the slot 9 and the surface of the latch rod 6 to switch the corresponding working state, and for the telescopic method of the contact switch, an elastic connection method can be adopted.

[0020] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiments according to the technology of the utility model, which does not depart from the content of the technical solution of the utility model, belongs to the scope of the technical solution of the utility model.

Claims

1. An elevator maintenance device, characterized in that: The invention comprises an inspection box body (1) assembled on the upper beam of the car, wherein a U-shaped profile frame (2) is provided inside the inspection box body (1), a first switch group (3) is assembled on the left side of the profile frame (2), and a second switch group (4) is assembled on the right side of the profile frame (2); the first switch group (3) and the second switch group (4) are both assembled by a Z-shaped bending plate (5); It also includes a latch rod (6), and a transverse hole (7) for inserting the latch rod (6) is provided on the same horizontal plane as the bending plate (5) and the profile frame (2); and two vertical holes (8) are provided at intervals on the bottom surface of the profile frame (2); Two slots (9) are arranged at intervals on the surface of the latch rod (6), and the notches of the slots (9) face the vertical hole (8); It also includes a baffle (10), which can slide along the vertical hole (8) to the position of the card slot (9); The first switch group (3) and the second switch group (4) are both provided with a contact switch (11) at their upper ends. When the latch rod (6) slides in the horizontal direction and the baffle (10) slides into the front slot (9), the latch rod (6) touches the contact switch (11) on the second switch group (4), and the contact switch (11) on the first switch group (3) is in the slot (9); when the latch rod (6) slides in the horizontal direction and the baffle (10) slides into the rear slot (9), the latch rod (6) touches the contact switch (11) on the first switch group (3), and the contact switch (11) on the second switch group (4) is in the slot (9).

2. An elevator maintenance device according to claim 1, characterized in that: It also includes a latch positioning plate (12) installed on the elevator car guide rail, and the latch positioning plate (12) is provided with a positioning hole (13) for accommodating the insertion of the latch rod (6) towards the inspection box body (1).

3. An elevator maintenance device according to claim 1, characterized in that: The side edge of the slot (9) is arranged as a slope (14).

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