Movable elevator pit waterproof maintenance box structure

Abstract

The utility model discloses a movable elevator pit waterproof maintenance box structure which comprises a maintenance box body and further comprises two guide rails which are vertically arranged and fixed to the wall of a pit, and the maintenance box body is installed between the two guide rails in a sliding fit mode. And the driving device is connected with the maintenance box body and is used for driving the maintenance box body to move along the guide rails. The maintenance box is movably installed on the guide rail and is driven by the driving device, so that the maintenance box can be conveniently driven to move up and down after water enters the elevator pit, the elevator pit water level change can be better adapted, water in the pit is prevented from submerging the maintenance box, the maintenance box is prevented from being damaged, and the waterproof performance of the maintenance box is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to a waterproof inspection box structure for a movable elevator pit. Background Art

[0002] At present, many elevators are located in low-lying areas, and the elevator pits are often lower than the ground. If there are disasters such as heavy rain or floods, or if the elevator pit itself is not waterproof enough, the elevator pit will easily get flooded. When the elevator pit gets flooded, the electrical equipment in the pit will be submerged, and the most important electrical equipment is the pit inspection box. The pit inspection box is a device that elevator maintenance personnel need to use to enter the pit. It contains emergency stop switches, socket panels, lamps and other components, which are not waterproof. The existing inspection boxes are generally fixed in a fixed position in the elevator pit. When the pit gets flooded, it is difficult to adapt to the changes in the water level of the elevator pit. Therefore, the waterproof performance is poor, which brings many inconveniences to elevator maintenance work. Utility Model Content

[0003] In view of the above-mentioned deficiencies of the prior art, the technical problem to be solved by the utility model is: to provide a mobile elevator pit waterproof inspection box structure, which solves the problem that the fixed position inspection box in the prior art is difficult to adapt to the change of the water level of the foundation pit after water enters the foundation pit and has poor waterproof performance.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A mobile waterproof inspection box structure for an elevator pit includes an inspection box body and two guide rails vertically arranged and fixed on the pit wall, wherein the inspection box body is slidably mounted between the two guide rails; and a driving device is also included, wherein the driving device is connected to the inspection box body and is used to drive the inspection box body to move along the guide rails.

[0006] As an optimization, one side of the two guide rails is provided with a C-shaped slide groove extending along its length direction, a back plate is provided between the two guide rails, the inspection box body is fixedly installed on one side of the back plate, and the opposite sides of the back plate are bent and extended toward the other side of the back plate to form a C-shaped sliding portion, and the sliding portion is slidably connected with the slide groove.

[0007] As an optimization, the driving device includes a stepper motor installed on the upper end of one of the guide rails, a first toothed wheel is provided on the motor shaft of the stepper motor, a support shaft is provided between the lower ends of the two guide rails, the axis of the support shaft is parallel to the motor shaft of the stepper motor and is located in the same plane, a second toothed wheel is provided on the support shaft and is opposite to the first toothed wheel, and the second toothed wheel can rotate freely around its axis; the first toothed wheel and the second toothed wheel are connected by an annular synchronous toothed belt, and the synchronous toothed belt is fixedly connected to the side of the back plate away from the inspection box body.

[0008] As an optimization, a limit switch is provided at the upper end and the lower end of one of the guide rails respectively. The two limit switches are connected in parallel and then in series in the safe operation circuit of the elevator. Correspondingly, a pressure plate is provided on the back plate. When the pressure plate contacts / separates from the limit switch, the limit switch is closed / opened.

[0009] As an optimization, there are two L-shaped pressure plates, which are symmetrically installed on opposite sides of the pressure plate in the vertical direction. The vertical sections of the two pressure plates are fixedly connected to the back plate, and the horizontal sections are respectively opposite to the two limit switches.

[0010] As an optimization, limit assemblies are respectively provided at the upper and lower parts of the two guide rails, and correspondingly, limit blocks cooperating with the limit assemblies are installed on the back plate.

[0011] As an optimization, the limit assembly includes limit seats relatively arranged on two guide rails, and steel ball spring pins are provided on the opposite sides of the two limit seats. Correspondingly, a slot matching the steel ball spring pin is provided on the side of the limit block close to the limit seat.

[0012] As an optimization, a canopy plate is provided on the top of the inspection box body.

[0013] Compared with the prior art, this application has the following beneficial effects:

[0014] The utility model movably mounts the inspection box on the guide rail and drives it through a driving device, so that after water enters the elevator pit, the inspection box can be conveniently driven to move up and down, thereby better adapting to changes in the water level of the pit, preventing the water in the pit from submerging the inspection box and thus damaging it, thereby improving its waterproof performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a partial structural schematic diagram of the utility model;

[0017] In the figure, 1 is the maintenance box body, 2 is the guide rail, 3 is the back plate, 4 is the stepping motor, 5 is the support shaft, 6 is the synchronous toothed belt, 7 is the limit switch, 8 is the pressure plate, 9 is the limit block, 10 is the limit seat, 11 is the steel ball spring pin, and 12 is the canopy plate. DETAILED DESCRIPTION

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0019] For specific implementation: see Figure 1-Figure 2 ,

[0020] A mobile waterproof inspection box structure for an elevator pit includes an inspection box body 1, wherein the inspection box body 1 includes an electrical box, on which electrical components such as an emergency stop switch, a socket panel, and lamps required for daily maintenance of the elevator are installed. It also includes two guide rails 2 vertically arranged and fixed on the pit wall, and the inspection box body 1 is slidably installed between the two guide rails 2; it also includes a driving device, which is connected to the inspection box body 1 and is used to drive the inspection box body 1 to move along the guide rails 2. By movably installing the inspection box on the guide rails 2 and driving it through the driving device, the inspection box can be conveniently driven up and down after water enters the elevator pit, so as to better adapt to changes in the water level of the pit, so as to prevent the water in the pit from submerging the inspection box and thus damaging it, thereby improving its waterproof performance.

[0021] Specifically, the two guide rails 2 are provided with a C-shaped slide groove extending along the length direction thereof on opposite sides, a back plate 3 is provided between the two guide rails 2, the inspection box body 1 is fixedly mounted on one side of the back plate 3, and the opposite sides of the back plate 3 are bent and extended toward the other side of the back plate 3 to form a C-shaped sliding portion, and the sliding portion is slidably connected with the slide groove. The back plate 3 has a simple structure and a small deadweight, and the integrated sliding portion formed by bending on both sides further improves its bending strength, and can well support the inspection box body 1.

[0022] The driving device includes a stepper motor 4 installed at the upper end of one of the guide rails 2, and a first toothed wheel is provided on the motor shaft of the stepper motor 4. Correspondingly, a support shaft 5 is provided between the lower ends of the two guide rails 2, and a second toothed wheel opposite to the first toothed wheel is provided on the support shaft 5. The first toothed wheel and the second toothed wheel are connected by an annular synchronous toothed belt 6, and the synchronous toothed belt 6 is fixedly connected to the side of the back plate 3 away from the inspection box body 1. The stepper motor 4 in the present application can be connected to the control room by means of a cable or wireless communication, so as to facilitate the start or shut down of the operation of the stepper motor 4. When water enters the pit, the stepper motor 4 is started, the first toothed wheel on the stepper motor 4 rotates, and the second toothed wheel is driven to rotate by the synchronous toothed belt 6. Driven by the synchronous toothed belt 6, the inspection box body 1 moves upward, thereby avoiding the water surface and preventing it from being immersed in water. Among them, the function of the second toothed wheel is mainly to keep the synchronous toothed belt 6 tensioned, so that the operation of the entire structure is more stable.

[0023] A limit switch 7 is provided at the upper and lower ends of one of the guide rails 2, respectively. The two limit switches 7 are connected in parallel and then connected in series in the elevator's safe operation circuit. Correspondingly, a pressure plate 8 is provided on the back plate 3. When the pressure plate 8 contacts / separates from the limit switch 7, the limit switch 7 is closed / opened. The pressure plates 8 are two and L-shaped, and are symmetrically installed on the opposite sides of the pressure plate 8 along the vertical direction. The vertical sections of the two pressure plates 8 are fixedly connected to the back plate 3, and the horizontal sections are respectively opposite to the two limit switches 7. The limit switch 7 is only a simple switch component, and its contact or paddle structure is opposite to the pressure plate 8. When the pressure plate 8 contacts and paddles or presses, it can be closed, so that the elevator's safe operation circuit is connected, and the elevator can run at this time. When the pressure plate 8 is separated from the limit switch 7, the limit switch 7 will be disconnected, so that the elevator's safe operation circuit is disconnected, and the elevator cannot run at this time, thereby improving safety. When in use, whenever the inspection box body 1 moves up and down under the drive of the driving device, the elevator cannot run, so as to improve safety. When the inspection box body 1 moves to the upper or lower end of the guide rail 2, the pressing plate 8 contacts the upper or lower limit switch 7, and the limit switch 7 is closed, and the elevator can then run.

[0024] The upper and lower parts of the two guide rails 2 are provided with limit assemblies, respectively, and correspondingly, a limit block 9 cooperating with the limit assemblies is installed on the back plate 3. The limit assembly includes a limit seat 10 relatively arranged on the two guide rails 2, and a steel ball spring pin 11 is provided on the opposite side of the two limit seats 10, and correspondingly, a slot cooperating with the steel ball spring pin 11 is provided on the side of the limit block 9 close to the limit seat 10. The limit assembly enables the inspection box body 1 to be stabilized at the specified position through the limit assembly after it is in place, so as to prevent the synchronous toothed belt 6 from being subjected to long-term stress and affecting its use.

[0025] A canopy plate 12 is provided on the top of the inspection box body 1, which can effectively prevent the inspection box body 1 from being flooded when the pit enters, thereby further improving its waterproof performance.

[0026] Although the embodiments of the present invention have been shown and described, it is apparent to those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and foundations of the present invention. The scope of the present invention is defined by the appended claims and their equivalents. Therefore, the embodiments of the present invention are merely illustrative examples of the present invention. The embodiments of the present invention do not constitute limitations on the present invention from any point of view.

Claims

1. A waterproof inspection box structure for a mobile elevator pit, comprising an inspection box body, characterized in that: It also includes two guide rails vertically arranged and fixed on the pit wall, and the inspection box body is slidably mounted between the two guide rails; it also includes a driving device, which is connected to the inspection box body and is used to drive the inspection box body to move along the guide rails.

2. A mobile elevator pit waterproof inspection box structure according to claim 1, characterized in that: One side of each of the two guide rails is provided with a C-shaped slide groove extending along its length direction, and a back plate is provided between the two guide rails. The inspection box body is fixedly installed on one side of the back plate, and the opposite sides of the back plate are bent and extended toward the other side of the back plate to form a C-shaped sliding part, and the sliding part is slidably connected with the slide groove.

3. A mobile elevator pit waterproof inspection box structure according to claim 2, characterized in that: The driving device includes a stepper motor installed on the upper end of one of the guide rails, a first toothed wheel is provided on the motor shaft of the stepper motor, a support shaft is provided between the lower ends of the two guide rails, the axis of the support shaft is parallel to the motor shaft of the stepper motor and is located in the same plane, a second toothed wheel is provided on the support shaft and is opposite to the first toothed wheel, and the second toothed wheel can rotate freely around its axis; the first toothed wheel and the second toothed wheel are connected by an annular synchronous toothed belt, and the synchronous toothed belt is fixedly connected to the side of the back plate away from the inspection box body.

4. A mobile elevator pit waterproof inspection box structure according to claim 2, characterized in that: A limit switch is provided at the upper end and the lower end of one of the guide rails respectively. The two limit switches are connected in parallel and then in series in the safe operation circuit of the elevator. Correspondingly, a pressure plate is provided on the back plate. When the pressure plate contacts / separates from the limit switch, the limit switch is closed / opened.

5. A mobile elevator pit waterproof inspection box structure according to claim 4, characterized in that: There are two L-shaped pressing plates, which are symmetrically installed on opposite sides of the pressing plate in the vertical direction. The vertical sections of the two pressing plates are fixedly connected to the back plate, and the horizontal sections are respectively opposite to the two limit switches.

6. A mobile elevator pit waterproof inspection box structure according to claim 2, characterized in that: Limiting components are respectively arranged on the upper and lower parts of the two guide rails, and correspondingly, limiting blocks cooperating with the limiting components are installed on the back plate.

7. A mobile elevator pit waterproof inspection box structure according to claim 6, characterized in that: The limit assembly includes limit seats relatively arranged on two guide rails, and steel ball spring pins are arranged on opposite sides of the two limit seats. Correspondingly, a slot matching the steel ball spring pin is arranged on one side of the limit block close to the limit seat.

8. The waterproof inspection box structure for a mobile elevator pit according to claim 1 is characterized in that: A canopy plate is arranged on the top of the inspection box body.

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