Door seat elevator device

Abstract

The utility model relates to a portal elevator device in the technical field of portal crane accessories, which comprises a portal crane, the portal crane comprises a portal frame, a hollow stand column arranged at the top of the portal frame and a platform arranged on the peripheral side of the upper end part of the hollow stand column, and a lower door opening is arranged on the side wall of the hollow stand column corresponding to the position above the portal frame. An upper door opening is formed in a position corresponding to the upper part of the platform; an elevator capable of ascending and descending is arranged in an inner cavity of the hollow stand column, so that a worker can conveniently switch positions between the portal and the platform through the elevator; according to the elevator, the position of a worker can be switched between the door frame and the platform through the elevator, the technical problem that time and labor are wasted when the worker climbs up and down the ladder in the prior art is solved, and the elevator is arranged in the hollow stand column and is not affected by the external severe environment.

Description

Technical Field

[0001] This utility model relates to the field of gantry crane accessories, and in particular to a gantry elevator device. Background Technology

[0002] Operators of existing gantry cranes typically climb to the top of the gantry via a zigzag ladder, then ascend to a platform at the top of the column via a spiral ladder that winds around the column, and finally enter the operator's cab directly from the platform.

[0003] For some tall gantry cranes, it is time-consuming and laborious for workers to climb up and down the ladders, which is particularly unfriendly to maintenance personnel who need to carry heavy loads (maintenance tools).

[0004] Therefore, we designed a door seat elevator device. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, this utility model discloses a door seat elevator device.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0007] A portal elevator device includes a portal crane. The portal crane includes a gantry, a hollow column at the top of the gantry, and a platform on the periphery of the upper end of the hollow column. The side wall of the hollow column has a lower door opening at a position above the gantry and an upper door opening at a position above the platform.

[0008] The hollow column is equipped with an elevator that can move up and down, so that staff can switch positions between the gantry and the platform by using the elevator.

[0009] Preferably, the hollow column is provided with multiple mounting brackets spaced along its axial direction on the inner side wall corresponding to the rear side of the elevator, and each mounting bracket has an elevator guide rail that cooperates with the elevator at both ends of its inner side.

[0010] Preferably, the mounting bracket includes a T-shaped frame, the elevator guide rail is connected to the outer end of the corresponding T-shaped frame wing, and the outer end of the T-shaped frame belly is provided with connecting rods distributed in a fan shape, the connecting rods being connected to the inner side wall of the hollow column.

[0011] Preferably, the elevator includes a car body, a geared motor is provided on the top of the car body, and a drive gear is fixedly sleeved on the output shaft of the geared motor;

[0012] All mounting brackets have a rack on their inner side that meshes with the drive gear.

[0013] Preferably, the elevator guide rail has a columnar structure; the elevator is equipped with a set of rolling wheels that are rolled onto the elevator guide rail.

[0014] Preferably, the hollow column is provided with a plurality of maintenance platforms located at intervals along its axial direction, corresponding to the elevator perimeter, and the inner edge of the maintenance platform is provided with a guardrail.

[0015] Preferably, an emergency ladder is provided between adjacent maintenance platforms.

[0016] Preferably, the elevator has buffer devices at both the top and bottom.

[0017] Preferably, the doorway is provided with a door that can be opened and closed.

[0018] By adopting the technical solution described above, this utility model has the following beneficial effects:

[0019] 1. The elevator allows staff to switch between the gantry and the platform, solving the technical problem of time-consuming and laborious climbing ladders in the existing technology. In addition, the elevator is installed inside the hollow column and is not affected by the harsh external environment.

[0020] 2. The elevator guide rail features a columnar structure and a set of rolled rollers, which reduces manufacturing precision compared to sliding connection guide rail pairs, thereby effectively reducing manufacturing costs;

[0021] 3. The configuration of the geared motor, drive gear and rack eliminates the safety hazard caused by the breakage of the winch wire rope compared to the method of raising and lowering the box by the winch.

[0022] 4. The installation of maintenance platforms, guardrails, and emergency ladders facilitates personnel escape and elevator maintenance work in the event of elevator malfunction. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a top view of the hollow column inner cavity structure of this utility model;

[0025] Figure 3 This is a side view of the elevator and elevator guide rail assembly in this utility model;

[0026] Figure 4 This is a top view of the elevator, mounting bracket, and elevator guide rail assembly in this utility model;

[0027] Figure 5 This is a schematic diagram of the mounting bracket in this utility model.

[0028] In the diagram: 1. Gantry crane; 11. Gantry frame; 12. Hollow column; 121. Lower doorway; 122. Upper doorway; 13. Platform; 2. Elevator; 21. Car body; 22. Gear motor; 23. Drive gear; 3. Mounting bracket; 31. T-shaped frame; 32. Connecting rod; 4. Elevator guide rail; 5. Rack; 6. Roller roller assembly; 7. Maintenance platform; 71. Guardrail. Detailed Implementation

[0029] The present invention will be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if terms such as "upper", "lower", "front", "rear", "left", "right" indicate orientation or positional relationship, they are only corresponding to the drawings of this application for the convenience of describing the present invention. It should be understood that if terms such as "end", "side", "end portion", "side part", "lateral", "longitudinal", etc. indicate orientation or positional relationship, they are only corresponding to the length and width of the corresponding component. That is, "end" indicates the head and tail area in the length direction of the corresponding component, and "side part" indicates the head and tail area in the width direction of the corresponding component. They are used for the convenience of describing the present invention and do not indicate or imply that the device or element referred to must have a specific orientation.

[0030] Example 1, in conjunction with Appendix Figure 1-5 A portal elevator device includes a portal crane 1. The portal crane 1 includes a gantry 11, a hollow column 12 disposed on the top of the gantry 11, and a platform 13 disposed on the periphery of the upper end of the hollow column 12. The side wall of the hollow column 12 is provided with a lower door opening 121 at the position above the gantry 11, and an upper door opening 122 at the position above the platform 13.

[0031] As needed, to improve safety and prevent rainwater from entering the hollow column 12 from the doorway, the doorway is equipped with an openable door.

[0032] The hollow column 12 has an elevator 2 that can be raised and lowered inside, so that staff can switch positions between the gantry 11 and the platform 13 by using the elevator 2.

[0033] Furthermore, the hollow column 12 is also equipped with an elevator guide rail 4 that cooperates with the elevator 2.

[0034] Furthermore, the hollow column 12 is provided with multiple mounting brackets 3 at intervals along its axial direction on the inner side wall corresponding to the rear side of the elevator 2, and each mounting bracket 3 has an elevator guide rail 4 that cooperates with the elevator 2 at both ends of its inner side.

[0035] In one possible implementation, combined with the appendix Figure 4-5The mounting bracket 3 includes a T-shaped frame 31. The elevator guide rail 4 is connected to the outer end of the corresponding wing of the T-shaped frame 31. The outer end of the belly of the T-shaped frame 31 is provided with connecting rods 32 distributed in a fan shape. The connecting rods 32 are connected to the inner side wall of the hollow column 12. That is, the elevator guide rail 4 is supported and installed by the T-shaped frame 31 and the connecting rods 32, so that the elevator 2 can be located in the middle of the inner cavity of the hollow column 12.

[0036] In one possible implementation, combined with the appendix Figure 3-4 Within a suitable range of precision during the elevator 2's lifting and lowering process, the elevator guide rail 4 has a columnar structure; the elevator 2 is equipped with a roller assembly 6 that rolls against the elevator guide rail 4. Specifically, the roller assembly 6 has rollers that roll against the elevator guide rail 4 in four directions (front, back, left, and right), which can ensure the smooth lifting and lowering of the elevator 2 and effectively prevent the elevator 2 from swaying in the front, back, left, and right directions.

[0037] In one possible implementation, combined with the appendix Figure 3-4 Elevator 2 includes a car body 21, a geared motor 22 is provided on the top of the car body 21, and a drive gear 23 is fixedly sleeved on the output shaft of the geared motor 22.

[0038] All mounting brackets 3 have a rack 5 on their inner side that meshes with the drive gear 23.

[0039] To enhance safety, the output shaft of the geared motor 22 is also equipped with a matching safety brake; alternatively, the geared motor 22 can be a worm gear motor. This eliminates the risk of wire rope breakage compared to using a winch to lift the box 21.

[0040] Furthermore, elevator 2 has buffer devices at both the top and bottom.

[0041] Example 2, in conjunction with Appendix Figure 1-2 A portal elevator device, based on embodiment one, has a hollow column 12 with a plurality of maintenance platforms 7 located around the elevator 2 at intervals along its axial direction, and the inner edge of the maintenance platform 7 is provided with a guardrail 71.

[0042] Emergency ladders are provided between adjacent maintenance platforms 7 as needed.

[0043] As needed, an emergency escape door can be provided at the position above each maintenance platform 7 corresponding to the position of the hollow column 12.

[0044] The parts of this utility model not described in detail are prior art. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and are intended to include all changes falling within the meaning and scope of equivalents in this utility model.

Claims

1. A portal crane device, comprising a portal crane (1), the portal crane (1) comprising a gantry (11), a hollow column (12) disposed on the top of the gantry (11), and a platform (13) disposed on the periphery of the upper end of the hollow column (12), characterized in that: The hollow column (12) has a lower door opening (121) on the side wall above the gantry (11) and an upper door opening (122) above the platform (13). The hollow column (12) is equipped with an elevator (2) that can be raised and lowered, so that staff can switch positions between the gantry (11) and the platform (13) by means of the elevator (2).

2. The portal elevator device according to claim 1, characterized in that: The hollow column (12) is provided with multiple mounting brackets (3) at intervals along its axial direction on the inner side wall corresponding to the rear side of the elevator (2). Each mounting bracket (3) has an elevator guide rail (4) that cooperates with the elevator (2) at both ends of its inner side.

3. The portal elevator device according to claim 2, characterized in that: The mounting bracket (3) includes a T-shaped frame (31), the elevator guide rail (4) is connected to the outer end of the wing of the corresponding T-shaped frame (31), and the outer end of the belly of the T-shaped frame (31) is provided with connecting rods (32) distributed in a fan shape, and the connecting rods (32) are connected to the inner wall of the hollow column (12).

4. The portal elevator device according to claim 2, characterized in that: The elevator (2) includes a car body (21), and a geared motor (22) is provided on the top of the car body (21). The output shaft of the geared motor (22) is fixedly fitted with a drive gear (23). All mounting brackets (3) have a rack (5) on their inner side that meshes with the drive gear (23).

5. The portal elevator device according to claim 2, characterized in that: The elevator guide rail (4) is a columnar structure; the elevator (2) is equipped with a rolling wheel assembly (6) that rolls against the elevator guide rail (4).

6. The portal elevator device according to claim 1, characterized in that: The hollow column (12) is provided with multiple maintenance platforms (7) located around the elevator (2) along its axial direction, and the inner edge of the maintenance platform (7) is provided with a guardrail (71).

7. The portal elevator device according to claim 6, characterized in that: An emergency ladder is provided between adjacent maintenance platforms (7).

8. The portal elevator device according to claim 1, characterized in that: The elevator (2) has buffer devices at both the top and bottom.

9. The portal elevator device according to claim 1, characterized in that: The doorway is equipped with a door that can be opened and closed.

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