Auxiliary well lid lifting manipulator

By designing a manhole cover lifting robot, which utilizes lifting devices and hydraulic cylinders and other automated components, the manhole cover can be mechanically grasped and lifted. This solves the problems of high labor intensity and safety hazards associated with traditional manual grasping methods, and improves operational efficiency and stability.

CN224172415UActive Publication Date: 2026-04-28AVIATION FUEL QINGDAO INT AIRPORT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
AVIATION FUEL QINGDAO INT AIRPORT CO LTD
Filing Date
2025-02-18
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Traditional methods of manually grabbing and moving aviation fuel well covers result in high labor intensity and safety hazards, making it difficult to efficiently grab and move well covers in the complex environment of the apron.

Method used

A manhole cover lifting robot was designed, which uses automated components such as lifting devices, hydraulic cylinders and pneumatic cylinders. It achieves mechanized gripping and lifting of manhole covers through electric push rods, articulated arms and grippers, and improves the stability of the device by combining sliding plates and casters.

Benefits of technology

It significantly improves the efficiency and stability of manhole cover retrieval, reduces the intensity of manual labor, ensures the safety and efficiency of operations, prevents manhole covers from falling off, and improves the management efficiency of apron operations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of ground well lid operation, and particularly relates to a well lid auxiliary lifting manipulator which comprises a fixing frame, a moving rod is arranged on the fixing frame, a hinge arm is hinged to the outer wall of the moving rod, a lifting device is arranged at the end of the hinge arm and comprises a stand column, and a hydraulic cylinder is fixedly connected to the outer wall of the stand column. According to the auxiliary lifting manipulator for the well lid, mechanical grabbing and lifting of the well lid are achieved through the lifting device, the hydraulic cylinder, the air cylinder and other automatic assemblies, the operation efficiency is remarkably improved through the design, the labor intensity of workers is relieved, and compared with a traditional manual grabbing mode, mechanical operation is faster and more accurate; according to the well lid opening and closing device, the well lid can be opened and closed within a short time, so that the working efficiency is improved, meanwhile, the supporting area of the base is effectively enlarged through the design of the sliding plate and the hinge rod, the device can be prevented from shaking when the well lid is grabbed, and the stability in the well lid grabbing process is improved.
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Description

Technical Field

[0001] This utility model relates to the field of manhole cover operation technology, specifically to a manhole cover auxiliary lifting robot. Background Technology

[0002] Aviation fuel well covers, as important facilities on the apron, are often extremely cumbersome due to their enormous weight and size. Coupled with the complexity and variability of the apron operating environment, the traditional method of relying on manual grabbing and moving of well covers undoubtedly brings great challenges to the labor intensity of workers. Therefore, the development of a vehicle-mounted robotic arm specifically designed for use on a multi-functional cleaning vehicle to achieve efficient and safe grabbing of aviation fuel well covers has become an urgent need in the industry. In view of this, we propose a well cover assist lifting robotic arm. Utility Model Content

[0003] The main objective of this invention is to provide a manhole cover lifting robot that can solve the problems mentioned in the background section.

[0004] To achieve the above objectives, this utility model proposes a manhole cover auxiliary lifting robot, including a fixed frame for fixing the robot to the outer wall of a cleaning vehicle. The fixed frame is equipped with an electric push rod, which, acting on a movable rod, can lift the entire robot, thus improving the overall convenience of the device. The fixed frame has a movable rod, and a hinged arm is hinged to the outer wall of the movable rod. A lifting device is provided at the end of the hinged arm, and the lifting device includes:

[0005] A column, wherein a hydraulic cylinder is fixedly connected to the outer wall of the column, the hydraulic cylinder penetrates the column and is slidably connected to the column;

[0006] A lifting rod is slidably connected to a column, and the end of the lifting rod is fixedly connected to the output end of a hydraulic cylinder. A fixing sleeve is fixedly connected to the outer wall of the lifting rod, and a cylinder is fixedly connected to the outer wall of the fixing sleeve.

[0007] A rotating block, which passes through the fixed sleeve and the lifting rod and is rotatably connected to the fixed sleeve and the lifting rod, and is passed through the cylinder output end and sleeved with the cylinder output end;

[0008] The gripper is hinged to the inner wall of the rotating block. A rod is fixedly connected to the inner wall of the gripper. The rod passes through the fixed block and is sleeved with the fixed block. The fixed block is rotatably connected to the output end of the cylinder.

[0009] Preferably, the bottom end of the column is rotatably connected to a base, and the base is provided with a sliding groove.

[0010] Preferably, the base is penetrated by a sliding plate and slidably connected to the sliding plate. A hinge rod is hinged to the outer wall of the sliding plate, and the end of the hinge rod is provided with a caster wheel for supporting the lifting device and facilitating movement.

[0011] Preferably, there are two sets of columns, which are set at both ends of the lifting rod to improve the stability of the lifting device.

[0012] Preferably, the base is provided in two sets, and each set of the base is provided with four sets of universal wheels, which are symmetrically distributed inside the base.

[0013] Preferably, the fixing frame has a sliding groove, and the sliding groove is slidably connected to the moving rod.

[0014] This utility model provides a manhole cover auxiliary lifting robot. It has the following beneficial effects:

[0015] (1) The manhole cover lifting robot uses lifting devices and automated components such as hydraulic cylinders and air cylinders to realize the mechanized gripping and lifting of manhole covers. This design significantly improves work efficiency and reduces the intensity of manual labor. Compared with the traditional manual gripping method, mechanized operation is faster and more accurate, and can complete the opening and closing of manhole covers in a short time, thereby improving the efficiency of maintenance and management.

[0016] (2) The manhole cover lifting robot can effectively expand the support area of ​​the base through the design of the sliding plate and hinge rod in the base. When grabbing the manhole cover, it can prevent the device from shaking and avoid the manhole cover from falling. It greatly improves the stability of the manhole cover grabbing process and ensures the smooth operation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall unfolded three-dimensional structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall shrinkable three-dimensional structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the three-dimensional cross-sectional structure of the lifting rod of this utility model;

[0021] Figure 4This is a schematic diagram of the three-dimensional cross-sectional structure of the gripper of this utility model;

[0022] Figure 5 This is a schematic diagram of the gripper structure for picking up manhole covers according to this utility model;

[0023] Figure 6 This is a schematic diagram of the three-dimensional cross-sectional structure of the base of this utility model;

[0024] Figure 7 This is a schematic diagram of the unfolded structure of the universal wheel of this utility model.

[0025] Explanation of icon numbers:

[0026] 1. Fixed frame; 2. Moving rod; 3. Articulated arm; 41. Column; 42. Lifting rod; 43. Hydraulic cylinder; 44. Fixed sleeve; 45. Cylinder; 46. Rotating block; 47. Gripper; 471. Rod body; 472. Fixed block; 51. Base; 511. Sliding groove; 512. Sliding plate; 513. Articulated rod; 514. Caster wheel.

[0027] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1-7 This utility model proposes a manipulator for lifting manhole covers, including a fixed frame 1, a movable rod 2 on the fixed frame 1, a sliding groove on the fixed frame 1, the sliding groove being slidably connected to the movable rod 2, a hinged arm 3 hinged to the outer wall of the movable rod 2, and a lifting device at the end of the hinged arm 3.

[0030] In an embodiment of this utility model, in order to lift the manhole cover, the lifting device specifically includes a column 41. A hydraulic cylinder 43 is fixedly connected to the outer wall of the column 41. The hydraulic cylinder 43 passes through the column 41 and is slidably connected to the column 41. There are two sets of columns 41, which are arranged at both ends of the lifting rod 42. The lifting rod 42 is slidably connected to the column 41. The end of the lifting rod 42 is fixedly connected to the output end of the hydraulic cylinder 43. A fixing sleeve is fixedly connected to the outer wall of the lifting rod 42. 44. A cylinder 45 is fixedly connected to the outer wall of the fixed sleeve 44. A rotating block 46 passes through the fixed sleeve 44 and the lifting rod 42 and is rotatably connected to the fixed sleeve 44 and the lifting rod 42. The rotating block 46 is passed through by the output end of the cylinder 45 and is sleeved with the output end of the cylinder 45. A gripper 47 is hinged to the inner wall of the rotating block 46. A rod 471 is fixedly connected to the inner wall of the gripper 47. The rod 471 passes through the fixed block 472 and is sleeved with the fixed block 472. The fixed block 472 is rotatably connected to the output end of the cylinder 45.

[0031] Furthermore, a base 51 is rotatably connected to the bottom end of the column 41. The base 51 has a sliding groove 511. The base 51 is penetrated by a sliding plate 512 and is slidably connected to the sliding plate 512. A hinge rod 513 is hinged to the outer wall of the sliding plate 512. A universal wheel 514 is provided at the end of the hinge rod 513. There are two sets of bases 51. Each set of bases 51 has four sets of universal wheels 514. The four sets of universal wheels 514 are symmetrically distributed inside the base 51.

[0032] In this utility model, during use, the cleaning truck is first driven to the side of the manhole cover, then the electric push rod is activated to place the lifting device 4 on the ground. The operator then pulls the column 41 so that the gripper 47 is directly above the manhole cover. The gripper 47 is then rotated so that its end aligns with the groove of the manhole cover. Finally, the cylinder 45 is activated, causing its output end to move upwards. Figure 4 As shown, during this process, the fixed block 472 applies a force to the rod 471. At this time, under the action of the force, the gripper 47 rotates around the hinge point with the rotating block 46, thereby clamping the manhole cover. Figure 5 As shown, when the gripper 47 clamps the manhole cover, the hydraulic cylinder 43 is activated. At this time, the lifting rod 42 will be driven by the force of the hydraulic cylinder 43 to move the manhole cover upward. This design replaces the traditional manual gripping method, which can not only significantly improve the work efficiency and reduce the intensity of manual labor, but also effectively avoid personnel from directly contacting the dangerous environment and improve the safety of operation.

[0033] When it is necessary to improve the stability of manhole cover gripping, first pull the sliding plate 512 in sequence. When the sliding plate 512 is pulled to the bottom, the limit of the hinge rod 513 is released. Then rotate the hinge rod 513 in sequence, as follows. Figure 7As shown, this design, through the design of sliding plate 512 and hinge rod 513, can effectively increase the support area of ​​base 51, thereby improving the stability of the overall device, preventing shaking during the manhole cover grabbing process, and thus preventing the manhole cover from falling off.

[0034] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A manhole cover lifting robot, comprising a fixed frame (1), characterized in that: The fixed frame (1) is provided with a movable rod (2), and a hinged arm (3) is hinged to the outer wall of the movable rod (2). The end of the hinged arm (3) is provided with a lifting device, which includes: A column (41) is fixedly connected to the outer wall of the column (41) with a hydraulic cylinder (43), the hydraulic cylinder (43) passing through the column (41) and slidingly connected to the column (41); The lifting rod (42) is slidably connected to the column (41), the end of the lifting rod (42) is fixedly connected to the output end of the hydraulic cylinder (43), the outer wall of the lifting rod (42) is fixedly connected to the fixing sleeve (44), and the outer wall of the fixing sleeve (44) is fixedly connected to the cylinder (45). Rotating block (46), the rotating block (46) passes through the fixed sleeve (44) and the lifting rod (42) and is rotatably connected to the fixed sleeve (44) and the lifting rod (42), the rotating block (46) is passed through the output end of the cylinder (45) and is sleeved with the output end of the cylinder (45); The gripper (47) is hinged to the inner wall of the rotating block (46). A rod (471) is fixedly connected to the inner wall of the gripper (47). The rod (471) passes through the fixed block (472) and is sleeved with the fixed block (472). The fixed block (472) is rotatably connected to the output end of the cylinder (45).

2. The manhole cover auxiliary lifting robot according to claim 1, characterized in that: The bottom end of the column (41) is rotatably connected to a base (51), and the base (51) is provided with a sliding groove (511).

3. The manhole cover auxiliary lifting robot according to claim 2, characterized in that: The base (51) is penetrated by a sliding plate (512) and slidably connected to the sliding plate (512). A hinge rod (513) is hinged to the outer wall of the sliding plate (512), and a universal wheel (514) is provided at the end of the hinge rod (513).

4. The manhole cover auxiliary lifting robot according to claim 1, characterized in that: There are two sets of columns (41), and the two sets of columns (41) are set at both ends of the lifting rod (42).

5. The manhole cover auxiliary lifting robot according to claim 3, characterized in that: The base (51) is provided in two sets, and each set of the base (51) is provided with four sets of casters (514). The four sets of casters (514) are symmetrically distributed inside the base (51).

6. The manhole cover auxiliary lifting robot according to claim 1, characterized in that: The fixed frame (1) has a sliding groove, which is slidably connected to the moving rod (2).