A telescopic upper and lower guardrail for an elevator car roof

Abstract

The utility model relates to the field of elevator car roof's guardrail, especially a kind of up and down telescopic guardrail for elevator car roof.A kind of up and down telescopic guardrail for elevator car roof, including guardrail, back stop, mounting seat, driving motor, first screw rod, lifting guard plate and handle, guardrail bottom is equipped with mounting hole, guardrail rear side is fixedly connected with back stop, guardrail front side right part is fixedly connected with mounting seat, mounting seat bottom is fixedly connected with driving motor, the output shaft of driving motor top is fixedly connected with first screw rod, guardrail upper portion is slidably connected with lifting guard plate, back stop is slidably connected with lifting guard plate, lifting guard plate inboard rear part is fixedly connected with handle.The utility model cooperates driving motor, first screw rod and lifting guard plate, realizes the telescopic of guardrail, back stop plays the role of support, makes lifting guard plate and guardrail more stable.

Description

Technical Field

[0001] This utility model relates to the field of guardrails for elevator car tops, and more particularly to a retractable guardrail for elevator car tops. Background Technology

[0002] The elevator car top is a crucial component of the elevator structure. Located atop the elevator car, it supports and protects the internal equipment. The car top is typically made of robust materials, such as metal or reinforced plastic, to withstand the various pressures and weights exerted during elevator operation. Below the car top lies the main working area of ​​the elevator, including the control system, motor, transmission system, and other related electrical and mechanical equipment. These components work together to ensure the smooth and safe operation of the elevator. The elevator car top railing, serving as a protective element for construction and maintenance personnel, plays a vital role in ensuring the safety of those working on the car top. To accommodate elevator installation, telescopic elevator car top railings are used. However, existing railings typically rely on bolts for extension and retraction. This method of fixing is prone to wobbling under stress due to loose bolts, making it unstable.

[0003] Therefore, it is necessary to design a retractable guardrail for the top of the elevator car to solve the above-mentioned technical problems. Utility Model Content

[0004] To overcome the drawback of the guardrail being prone to wobbling due to loose bolts when under stress, the technical problem is to provide a telescopic guardrail for the top of an elevator car.

[0005] The technical solution is as follows: A telescopic guardrail for elevator car top includes a guardrail, a rear guard, a mounting base, a drive motor, a first spiral rod, a lifting guard plate, a handle, an electrical mounting plate, and a controller. The guardrail has four pairs of mounting holes at its bottom. A rear guard is fixedly connected to the rear side of the guardrail. A mounting base is fixedly connected to the right front side of the guardrail. A drive motor is fixedly connected to the bottom of the mounting base. The output shaft at the top of the drive motor is fixedly connected to the first spiral rod. A lifting guard plate is slidably connected to the upper part of the guardrail. The rear guard is slidably connected to the lifting guard plate. A handle is fixedly connected to the rear inner side of the lifting guard plate, and the first spiral rod is threadedly connected to the lifting guard plate. Electrical mounting plates are provided on both the left and right sides of the lifting guard plate, and each electrical mounting plate has multiple holes for installation. A controller is fixedly connected to the right inner side of the guardrail, and the controller is electrically connected to the drive motor.

[0006] As a preferred option, it also includes warning lights, with two warning lights fixedly connected to the left and right sides of the top of the lifting guard plate.

[0007] Preferably, the guardrail also includes connecting guard plates, hinges, protective doors, and pull rings. Connecting guard plates are fixedly connected to the left and right sides of the front of the guardrail. Hinges are fixedly connected to the two connecting guard plates near the center end. Protective doors are fixedly connected to the two hinges near the center end. Pull rings are fixedly connected to the upper front side of the two protective doors.

[0008] Preferably, it also includes a second spiral rod, a locking block, and a handwheel. The second spiral rod is threadedly connected to the top of the left protective door, and the locking block is fixedly connected to the top of the right protective door. The locking block is threadedly connected to the second spiral rod, and a handwheel is fixedly connected to the left side of the second spiral rod.

[0009] Preferably, the system also includes warning panels, magnetic plates, and magnetic strips. Warning panels are fixedly connected to the front of both protective doors, magnetic plates are fixedly connected to the inner side of both warning panels, and two magnetic strips are placed on each magnetic plate, with the magnetic strips attracting the magnetic plates.

[0010] As a preferred option, it also includes supplementary lights, with multiple supplementary lights installed around the inner sides of both warning panels, and the controller is electrically connected to the supplementary lights.

[0011] Preferably, it also includes a buffer pad, with a buffer pad fixedly connected to each of the two protective doors near the center end, and the two buffer pads are in contact with each other.

[0012] Beneficial effects: 1. This utility model achieves the extension and retraction of the guardrail through the cooperation of the drive motor, the first screw rod and the lifting guard plate, and the rear baffle plays a supporting role, making the lifting guard plate and the guardrail more stable.

[0013] 2. This utility model facilitates the work of staff by combining warning boards, magnetic plates and magnetic strips, and with the addition of supplementary lighting, it makes it easier for staff to see the drawings.

[0014] 3. This utility model strengthens the life safety of workers by connecting the guard plate and the protective door, and the buffer pad protects the protective door from collision when it is closed.

[0015] 4. This utility model uses the cooperation of the second spiral rod, the locking block and the handwheel to fix the closed state of the protective door, thereby strengthening the protection of the life safety of the staff. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the lifting guard plate, handle, and electrical mounting plate of this utility model.

[0017] Figure 2 This is a three-dimensional structural diagram of the protective railing, rear guard, and mounting base of this utility model.

[0018] Figure 3This is a three-dimensional structural diagram of the connecting guard plate, hinges, and protective door components of this utility model.

[0019] Figure 4 This is a three-dimensional structural diagram of the second helical rod, the locking block, and the handwheel of this utility model.

[0020] Figure 5 This is a three-dimensional structural diagram of the magnetic plate, magnetic strip, and supplementary light components of this utility model.

[0021] Reference numerals: 1-Guardrail, 101-Mounting hole, 2-Rear guard, 3-Mounting base, 4-Drive motor, 5-First helical rod, 6-Lifting guard plate, 7-Handle, 8-Electrical mounting plate, 9-Warning light, 10-Controller, 11-Connecting guard plate, 12-Hinge, 13-Guard door, 14-Pull ring, 15-Second helical rod, 16-Snap-fit ​​block, 17-Handwheel, 18-Warning plate, 19-Magnetic plate, 20-Magnetic strip, 21-Supplemental light, 22-Buffer pad. Detailed Implementation

[0022] Example: A retractable guardrail for the top of an elevator car, such as... Figure 1 , Figure 2 and Figure 3 As shown, the device includes a guardrail 1, a rear guardrail 2, a mounting base 3, a drive motor 4, a first spiral rod 5, a lifting guard plate 6, a handle 7, an electrical mounting plate 8, and a controller 10. The bottom of the guardrail 1 has four pairs of mounting holes 101. The rear guardrail 2 is welded to the rear side of the guardrail 1. The mounting base 3 is fixedly connected to the front right side of the guardrail 1. The drive motor 4 is installed at the bottom of the mounting base 3. The output shaft at the top of the drive motor 4 is fixedly connected to the first spiral rod 5. The lifting guard plate 6 is slidably connected to the upper part of the guardrail 1. The rear guardrail 2 is slidably connected to the lifting guard plate 6. The handle 7 is welded to the rear inner side of the lifting guard plate 6, and the first spiral rod 5 is threadedly connected to the lifting guard plate 6. Electrical mounting plates 8 are provided on both the left and right sides of the lifting guard plate 6. The electrical mounting plates 8 have multiple holes for installation. The controller 10 is installed on the right inner side of the guardrail 1, and the controller 10 is electrically connected to the drive motor 4.

[0023] like Figure 1 and Figure 2 As shown, it also includes warning lights 9, with two warning lights 9 installed on the left and right sides of the top of the lifting guard plate 6.

[0024] like Figure 1 , Figure 3 , Figure 4 and Figure 5As shown, it also includes connecting guard plates 11, hinges 12, protective doors 13 and pull rings 14. The front left and right sides of the guardrail 1 are connected to the connecting guard plates 11 by bolts. The two connecting guard plates 11 are connected to the hinges 12 by bolts near the center end. The two hinges 12 are connected to the protective doors 13 by bolts near the center end. The upper front side of the two protective doors 13 is provided with pull rings 14.

[0025] like Figure 1 and Figure 4 As shown, it also includes a second spiral rod 15, a locking block 16, and a handwheel 17. The top of the left protective door 13 is threadedly connected to the second spiral rod 15, and the top of the right protective door 13 is fixedly connected to the locking block 16. The locking block 16 is threadedly connected to the second spiral rod 15, and the left side of the second spiral rod 15 is fixedly connected to the handwheel 17.

[0026] like Figure 1 and Figure 5 As shown, it also includes a warning plate 18, a magnetic plate 19 and a magnetic strip 20. The front sides of the two protective doors 13 are connected to the warning plate 18 by bolts. The inner sides of the two warning plates 18 are fixedly connected to the magnetic plate 19. Two magnetic strips 20 are placed on the two magnetic plates 19, and the magnetic strips 20 are attracted to the magnetic plate 19.

[0027] like Figure 5 As shown, it also includes supplementary lights 21. Multiple supplementary lights 21 are installed around the inner side of both warning panels 18. The controller 10 is electrically connected to the supplementary lights 21.

[0028] like Figure 4 As shown, it also includes a buffer pad 22. Both protective doors 13 are fixedly connected to the buffer pad 22 near the center end, and the two buffer pads 22 are in contact with each other.

[0029] Workers can apply this device to the elevator car top as needed. When using the device, first install it on the elevator car top through the mounting hole 101. Then, turn the handwheel 17 clockwise to move the second spiral rod 15 to the left until the second spiral rod 15 disengages from the locking block 16. Next, open the safety door 13 through the pull ring 14. Then, place the drawing to be referenced during construction on the magnetic plate 19, pick up the magnetic strip 20, and place it on the drawing. The drawing is fixed by the attraction between the magnetic plate 19 and the magnetic strip 20. Then, the worker starts the drive motor 4 through the controller 10 to adjust the lifting guard plate 6 to move up and down. The rear support 2 provides support, making the lifting guard plate 6 and the guardrail 1 more stable. The top of the lifting guard plate 6 is equipped with a warning light 9 to remind workers to start work. The personnel adjust the lifting guard plate 6 to a suitable position to ensure the safety of the personnel. Then, the relevant equipment is installed through the electrical mounting plate 8. Because the electrical mounting plate 8 has multiple holes for installation, it can accommodate equipment of different specifications. If the light on the drawing is relatively dim, the supplementary light 21 is turned on through the controller 10 to make it easier for the personnel to see the drawing and facilitate their work. After the installation is completed, the supplementary light 21 is turned off, and then the protective door 13 is closed. The buffer pad 22 protects the protective door 13 from collision when it is closed. Then, the handwheel 17 is turned counterclockwise to drive the second spiral rod 15 to move to the right and re-engage with the locking block 16, thereby fixing the protective door 13 in the closed state. Finally, the magnetic strip 20 is picked up, the drawing is taken out, and then the magnetic strip 20 is placed back on the magnetic plate 19.

Claims

1. A retractable guardrail for the top of an elevator car, characterized in that: The system includes a guardrail (1), a rear guard (2), a mounting base (3), a drive motor (4), a first screw rod (5), a lifting guard plate (6), a handle (7), an electrical mounting plate (8), and a controller (10). The guardrail (1) has four pairs of mounting holes (101) at its bottom. The rear guard (2) is fixedly connected to the rear side of the guardrail (1). The mounting base (3) is fixedly connected to the right side of the front side of the guardrail (1). The drive motor (4) is fixedly connected to the bottom of the mounting base (3). The output shaft of the drive motor (4) is fixedly connected to the first screw rod. The spiral rod (5) and the upper part of the guardrail (1) are slidably connected to the lifting guard plate (6). The rear guard (2) is slidably connected to the lifting guard plate (6). The inner rear part of the lifting guard plate (6) is fixedly connected to the handle (7). The first spiral rod (5) is threadedly connected to the lifting guard plate (6). The left and right sides of the lifting guard plate (6) are provided with electrical mounting plates (8). The electrical mounting plates (8) are provided with multiple holes for installation. The inner right side of the guardrail (1) is fixedly connected to the controller (10). The controller (10) is electrically connected to the drive motor (4).

2. A retractable guardrail for the top of an elevator car according to claim 1, characterized in that: It also includes warning lights (9), and two warning lights (9) are fixedly connected to the top left and right sides of the lifting guard plate (6).

3. A retractable guardrail for the top of an elevator car according to claim 2, characterized in that: It also includes connecting guard plates (11), hinges (12), protective doors (13) and pull rings (14). Connecting guard plates (11) are fixedly connected to the left and right sides of the front part of the guardrail (1). Hinges (12) are fixedly connected to the two connecting guard plates (11) near the center end. Protective doors (13) are fixedly connected to the two hinges (12) near the center end. Pull rings (14) are fixedly connected to the upper front side of the two protective doors (13).

4. A retractable guardrail for the top of an elevator car according to claim 3, characterized in that: It also includes a second spiral rod (15), a snap-fit ​​block (16) and a handwheel (17). The top of the left protective door (13) is threadedly connected to the second spiral rod (15), and the top of the right protective door (13) is fixedly connected to the snap-fit ​​block (16). The snap-fit ​​block (16) is threadedly connected to the second spiral rod (15), and the left side of the second spiral rod (15) is fixedly connected to the handwheel (17).

5. A retractable guardrail for the top of an elevator car according to claim 4, characterized in that: It also includes a warning board (18), a magnetic plate (19) and a magnetic strip (20). The front side of the two protective doors (13) is fixedly connected to the warning board (18), and the inner side of the two warning boards (18) is fixedly connected to the magnetic plate (19). Two magnetic strips (20) are placed on the two magnetic plates (19), and the magnetic strips (20) attract the magnetic plates (19).

6. A retractable guardrail for the top of an elevator car according to claim 5, characterized in that: It also includes supplementary lights (21), and multiple supplementary lights (21) are installed around the inner side of the two warning panels (18). The controller (10) is electrically connected to the supplementary lights (21).

7. A retractable guardrail for the top of an elevator car according to claim 6, characterized in that: It also includes a buffer pad (22), and the two protective doors (13) are fixedly connected to the buffer pad (22) near the center end, and the two buffer pads (22) are in contact with each other.

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