Lifting platform for tunnel maintenance operation

Abstract

The utility model relates to the technical field of tunnel maintenance, in particular to a tunnel maintenance operation lifting platform which comprises a lifting platform, a driving assembly and an adjusting assembly for adjusting the lifting platform. The adjusting assembly comprises a driving motor, a rotating rod fixedly installed on an output shaft of the driving motor, a driver fixedly installed on the rotating rod and a rotating plate driving the lifting table to rotate. The driver is composed of a gear and a cleaning strip. And the gear is fixedly connected with the cleaning strip. According to the lifting platform for tunnel overhaul operation, when the driver works, the gear starts to rotate under the driving of the motor. The gear is fixedly connected with the cleaning strip, so that the cleaning strip can rotate along with the gear. When the gear is meshed with the rack at the bottom of the rotating plate, the gear can transmit the rotating motion to the rotating plate, so that the rotating plate rotates. And meanwhile, the cleaning strip can clean the rack in the rotating process.

Description

Technical Field

[0001] This utility model relates to the field of tunnel maintenance technology, specifically to a tunnel maintenance operation lifting platform. Background Technology

[0002] A tunnel is an engineering structure buried underground, representing a form of human utilization of underground space. Tunnels can be categorized into traffic tunnels, hydraulic tunnels, municipal tunnels, mining tunnels, and military tunnels, among others. The structure of a tunnel comprises two parts: the main structure and auxiliary equipment. The main structure consists of the tunnel body and portals, while auxiliary equipment includes passing bays, fire-fighting facilities, emergency communication systems, and drainage systems. Longer tunnels also have specialized ventilation and lighting equipment. During tunnel maintenance, due to the considerable height of the tunnel, aerial work platforms are often used to assist in the process.

[0003] Meanwhile, during tunnel maintenance, adjustments in different directions are required to inspect different locations within the tunnel, providing maintenance personnel with suitable angles for inspection.

[0004] The utility model application with application number CN202020479849.2 relates to the field of high-speed railway tunnel maintenance technology and discloses a high-speed railway tunnel maintenance operation device, including a base plate, a scissor-type lifting support, a driving hydraulic rod, and a maintenance platform. The scissor-type lifting support is installed on the top outer wall of the base plate, and the guide wheel at the bottom of the scissor-type lifting support is movably connected to the inner wall of the guide rail. A hinge is installed on one side wall of the maintenance platform, and a folding plate is movably connected to the hinge. This high-speed railway tunnel maintenance operation device can realize the lifting and lowering of the maintenance platform through the installation of the scissor-type lifting support. Furthermore, the installation of the bottom support frame and the hydraulic lifting rod can play a good supporting role, making the load-bearing capacity of the extension plate better, expanding the working area of ​​the maintenance platform, and thus improving the maintenance efficiency. It has strong practicality. At the same time, the installation of the protective net can protect the personnel on the maintenance platform, improving the safety performance of the maintenance platform.

[0005] The aforementioned patent expands the maintenance platform's range by adding a hydraulic lifting rod, but it cannot adjust the maintenance direction of the lifting platform, resulting in blind spots in the maintenance area and requiring frequent adjustments to the lifting platform's position during maintenance.

[0006] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Utility Model Content

[0007] The purpose of this utility model is to provide a tunnel maintenance lifting platform that can effectively solve the above-mentioned technical problems.

[0008] To achieve the purpose of this utility model, the following technical solution is adopted:

[0009] A tunnel maintenance lifting platform includes: a lifting platform, a drive assembly, and an adjustment assembly for adjusting the lifting platform;

[0010] The adjustment assembly includes a drive motor, a rotating rod fixedly mounted on the output shaft of the drive motor, a driver fixedly mounted on the rotating rod, and a rotating plate that drives the lifting platform to rotate.

[0011] The drive consists of a gear and a cleaning strip; the gear is fixedly connected to the cleaning strip, and a rack is provided at the bottom of the rotating plate, which meshes with the gear; the length of the cleaning strip is longer than the length of the rack.

[0012] Furthermore, the drive assembly includes a cylinder, a drive rod installed at the output end of the cylinder, a mounting shell fixedly installed at the bottom of the cylinder, and lifting rods fixedly installed at both ends of the drive rod.

[0013] Furthermore, the lifting rods are provided in two sets and are arranged in a cross configuration. The lifting rods are rotatably connected to each other at the intersection, and the lifting rods are fixedly connected to the lifting platform.

[0014] Furthermore, the bottom of the rotating plate is also provided with a fixed shell, and support legs are inserted through the surface of the fixed shell.

[0015] Furthermore, the surface of the lifting platform is equipped with multiple sets of guardrails.

[0016] Compared with the prior art, this utility model has the following advantages: This utility model provides a tunnel maintenance lifting platform. When the drive unit is working, the gears begin to rotate under the drive of the motor. Since the gears and the cleaning strips are fixedly connected, the cleaning strips also rotate along with the gears. When the gears mesh with the rack at the bottom of the rotating plate, they transmit rotational motion to the rotating plate, causing it to rotate. Simultaneously, the cleaning strips clean the racks during rotation. Attached Figure Description

[0017] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0018] Figure 1 This is a schematic diagram of the structure of a tunnel maintenance lifting platform according to the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of a tunnel maintenance lifting platform according to the present invention;

[0020] Figure 3 This is a schematic diagram of the adjustment component of a tunnel maintenance lifting platform according to the present invention;

[0021] Figure 4 This utility model relates to a tunnel maintenance lifting platform. Figure 3 Enlarged view of point A in the middle.

[0022] In the diagram: 1. Lifting platform; 2. Drive assembly; 21. Cylinder; 22. Drive rod; 23. Mounting housing; 24. Lifting rod; 3. Adjustment assembly; 31. Drive motor; 32. Rotating rod; 33. Driver; 331. Gear; 332. Cleaning strip; 34. Rotating plate; 4. Fixed housing; 5. Support leg. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0024] In the description of this utility model, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. When a mechanism is referred to as being "fixed to" another mechanism, it can be directly on the other mechanism or there may be an intervening mechanism. When a mechanism is considered to be "connected" to another mechanism, it can be directly connected to the other mechanism or there may be an intervening mechanism at the same time. When a mechanism is considered to be "set on" another mechanism, it can be directly set on the other mechanism or there may be an intervening mechanism at the same time. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0025] like Figures 1 to 4 As shown, a tunnel maintenance lifting platform includes: a lifting platform 1, a drive assembly 2, and an adjustment assembly 3 for adjusting the lifting platform 1.

[0026] During tunnel maintenance, adjustments need to be made in different directions to inspect different parts of the tunnel and to provide maintenance personnel with a suitable angle for maintenance.

[0027] The drive assembly 2 includes a cylinder 21, a drive rod 22 mounted on the output end of the cylinder 21, a mounting shell 23 fixedly mounted on the bottom of the cylinder 21, and lifting rods 24 fixedly mounted on both ends of the drive rod 22. When the cylinder 21 receives compressed air or other power source, the piston begins to move and pushes the drive rod 22 to move linearly. The movement of the drive rod 22 further drives the lifting rod 24 to move up and down. By controlling the air intake direction and pressure of the cylinder 21, the movement speed and direction of the lifting rod 24 can be flexibly adjusted.

[0028] The lifting rods 24 are arranged in two sets and are cross-connected at their intersections. The lifting rods 24 are fixedly connected to the lifting platform 1, and the surface of the lifting platform 1 is provided with multiple sets of guardrails. When the lifting rods 24 are output through the cylinder 21, they begin to move synchronously, driving the lifting platform 1 to rise and fall. Because the lifting rods 24 are cross-connected and rotatably connected, the lifting platform 1 can move smoothly, facilitating stable maintenance by personnel.

[0029] The adjustment assembly 3 includes a drive motor 31, a rotating rod 32 fixedly mounted on the output shaft of the drive motor 31, a driver 33 fixedly mounted on the rotating rod 32, and a rotating plate 34 that drives the lifting platform 1 to rotate. When the drive motor 31 receives a control signal, its output shaft begins to rotate. This rotational motion is transmitted to the driver 33 through the rotating rod 32. The internal transmission mechanism of the driver 33 starts working, converting the rotational motion of the rotating rod 32 into the required driving force. Finally, this driving force is transmitted to the lifting platform 1 through the rotating plate 34, realizing the rotation function of the lifting platform 1.

[0030] As a supplement: the actuator 33 consists of a gear 331 and a cleaning strip 332; the gear 331 and the cleaning strip 332 are fixedly connected; the bottom of the rotating plate 34 is provided with a rack, which meshes with the gear 331; the cleaning strip 332 is longer than the rack. When the actuator 33 is working, the gear 331 begins to rotate under the drive of the motor. Since the gear 331 and the cleaning strip 332 are fixedly connected, the cleaning strip 332 also rotates with the gear 331. When the gear 331 meshes with the rack at the bottom of the rotating plate 34, it transmits rotational motion to the rotating plate 34, causing the rotating plate 34 to rotate. At the same time, the cleaning strip 332 cleans the rack during rotation. Since the length of the cleaning strip 332 is greater than the length of the rack, even if the gear 331 has separated from the rack, the cleaning strip 332 can still continue to clean the rack, ensuring the accuracy of the gear 331's rotation.

[0031] The bottom of the rotating plate 34 is also provided with a fixed shell 4, and the surface of the fixed shell 4 is interspersed with support legs 5. When the device in the present invention is in working state, the rotating plate 34 can rotate or swing as needed, while the fixed shell 4 provides stable support and protection, and the support legs 5 are interspersed on the surface of the fixed shell 4 to provide additional support and stability for the entire device.

[0032] Working principle:

[0033] When cylinder 21 receives compressed air or other power source, the piston begins to move and pushes drive rod 22 to move linearly. The movement of drive rod 22 further drives lifting rod 24 to move up and down. When driver 33 is working, gear 331 begins to rotate under the drive of motor. Since gear 331 is fixedly connected to cleaning strip 332, cleaning strip 332 also rotates with gear 331. When gear 331 meshes with rack at the bottom of rotating plate 34, it transmits rotational motion to rotating plate 34, causing rotating plate 34 to rotate. The fixed shell 4 provides stable support and protection, providing additional support and stability for the device.

[0034] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0035] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A tunnel maintenance lifting platform, characterized in that, include: Lifting platform, drive assembly, and adjustment assembly for adjusting the lifting platform; The adjustment assembly includes a drive motor, a rotating rod fixedly mounted on the output shaft of the drive motor, a driver fixedly mounted on the rotating rod, and a rotating plate that drives the lifting platform to rotate. The drive consists of a gear and a cleaning strip; the gear is fixedly connected to the cleaning strip, and a rack is provided at the bottom of the rotating plate, which meshes with the gear; the length of the cleaning strip is longer than the length of the rack.

2. The tunnel maintenance lifting platform as described in claim 1, characterized in that, The drive assembly includes a cylinder, a drive rod installed at the output end of the cylinder, a mounting shell fixedly installed at the bottom of the cylinder, and lifting rods fixedly installed at both ends of the drive rod.

3. The tunnel maintenance lifting platform as described in claim 2, characterized in that, The lifting rods are provided in two sets and are arranged in a cross manner. The lifting rods are rotatably connected to each other at the intersection. The lifting rods are fixedly connected to the lifting platform.

4. The tunnel maintenance lifting platform as described in claim 1, characterized in that, The bottom of the rotating plate is also provided with a fixed shell, and the surface of the fixed shell is interspersed with support legs.

5. The tunnel maintenance lifting platform as described in claim 1, characterized in that, The surface of the lifting platform is equipped with multiple sets of guardrails.

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