Door frame type detachable lifting device for large depth-to-diameter ratio manhole desilting robot

Abstract

The present invention provides a door-frame type detachable lifting device for a manhole desilting robot with a large depth-to-diameter ratio, comprising a door-frame type connecting rod, a door-frame type connecting rod lifting mechanism, an I-shaped lifting crossbar frame, an electric hoist, and a work surface; the door-frame type connecting rod is installed on the work surface, and the bottom of the door-frame type connecting rod is rotatably matched with the work surface through the door-frame type connecting rod lifting mechanism; the I-shaped lifting crossbar frame is used to install a cleaning device, and the I-shaped lifting crossbar frame is slidably matched with the lifting connecting rod through the electric hoist. The present invention switches the vertical state and the horizontal state of the door-frame type connecting rod through the door-frame type connecting rod lifting mechanism, making the installation process easier and reducing manpower requirements; the I-shaped lifting crossbar frame is driven up and down by the electric hoist to drive the desilting robot to rise or descend for cleaning operations, effectively improving the cleaning efficiency; the simple structure has strong stability, is easy to assemble, and is convenient to disassemble, which helps to expand the scope of application.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline robot auxiliary equipment, and in particular to a door frame type detachable lifting device for a large depth-to-diameter ratio manhole desilting robot. Background Art

[0002] Currently, there are three main types of lifting devices used in manhole desilting robots with large depth-to-diameter ratios: folding arm, sleeve cylinder, and mast. The folding arm type is the largest, too bulky, and extremely inconvenient to transport. While the sleeve cylinder and mast types are less bulky than the folding arm type, they are also non-foldable and difficult to transport, making them particularly inconvenient for manhole desilting projects with large depth-to-diameter ratios.

[0003] The inventor believes that the lifting devices used in existing large depth-to-diameter manhole desilting robots are bulky, difficult to transport, and have a limited scope of application. Therefore, it is necessary to provide a detachable and foldable lifting device with a simple structure, high stability, convenient transportation, and high applicability. Summary of the Invention

[0004] In view of the defects in the prior art, the purpose of the present invention is to provide a door frame type detachable lifting device for a manhole desilting robot with a large depth-to-diameter ratio.

[0005] According to the present invention, a door frame type detachable lifting device for a manhole desilting robot with a large depth-to-diameter ratio is provided, comprising: a door frame type connecting rod, a door frame type connecting rod lifting mechanism, an I-shaped lifting cross bar frame, an electric hoist and a work table; the door frame type connecting rod is installed on the work table, the door frame type connecting rod is transmission-connected to the door frame type connecting rod lifting mechanism, and the bottom of the door frame type connecting rod is rotationally matched with the work table through the door frame type connecting rod lifting mechanism; the door frame type connecting rod includes two lifting connecting rods, and the tops of the two lifting connecting rods are fastened together by a lifting cross beam; the I-shaped lifting cross bar frame is used to install a cleaning device, and the two ends of the I-shaped lifting cross bar frame are respectively installed on the two lifting connecting rods; the I-shaped lifting cross bar frame is transmission-connected to the electric hoist, and the I-shaped lifting cross bar frame is slidingly matched with the lifting connecting rod through the electric hoist.

[0006] Preferably, any of the lifting links comprises a plurality of aluminum round tubes hinged end to end, wherein the aluminum round tubes comprise a top section, a middle section and a tail section; a single ear plate is provided at the end of the top section of the aluminum round tube, a double ear plate is provided at the end of the tail section of the aluminum round tube, and the single ear plates and the double ear plates on two adjacent aluminum round tubes are hingedly connected via a connecting rod hinge.

[0007] Preferably, the outer diameters of the top section of the aluminum tube and the tail section of the aluminum tube are equal, and both are smaller than the outer diameter of the middle section of the aluminum tube; a fixed sleeve is sleeved on the top section of the aluminum tube, and the outer diameter of the fixed sleeve is consistent with that of the middle section of the aluminum tube.

[0008] Preferably, a clamp fixing plate is installed on the fixing sleeve and the middle section of the aluminum round tube respectively, and a cylinder is connected between the two clamp fixing plates.

[0009] Preferably, the bottom of any lifting link is mounted on the work surface via a hinged seat.

[0010] Preferably, the lifting beam includes a left half section and a right half section of the lifting beam, and the sides of the left half section and the right half section of the lifting beam that are close to each other are respectively provided with matching inner holes and protrusions, and the inner holes and the protrusions are inlaid and connected and fastened by screws.

[0011] Preferably, a fixed pulley and a pulley fixing rod are provided at the bottom of the lifting beam, and the rope of the electric hoist passes around the fixed pulley and is connected to the cleaning device.

[0012] Preferably, both ends of the I-shaped lifting crossbar frame are provided with a U-shaped structure, and balls are provided in the U-shaped structure, and the U-shaped structure is slidably matched with the lifting connecting rod through the balls.

[0013] Preferably, a mounting seat is provided on the top of the I-shaped lifting crossbar frame for mounting the cleaning device.

[0014] Preferably, the door frame type link lifting mechanism includes an electric winch, a reversing column and a lifting rod, the two ends of the lifting rod are respectively installed on the two lifting links, and the electric winch and the reversing column are both installed on the work surface; a fixing ring is provided in the middle of the lifting rod, and the rope of the electric winch is connected to the fixing ring by passing through the reversing column.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention switches the vertical and horizontal states of the door frame connecting rod through the door frame connecting rod lifting mechanism, making the installation process easier and reducing manpower requirements; the electric hoist drives the I-shaped lifting cross bar frame to move up and down, driving the dredging robot to rise or descend for cleaning operations, effectively improving the cleaning efficiency; through the simple structure, strong stability, easy assembly and disassembly, it helps to expand the scope of application.

[0017] 2. The present invention uses the U-shaped structure at both ends of the I-shaped lifting cross bar frame, which not only can move up and down on the door frame type connecting rod, but also facilitates installation, greatly improving the assembly efficiency; the retraction cylinder provided at the tail end of the U-shaped structure can adapt to the protrusion on the door frame type connecting rod, which helps to improve the adaptability of the I-shaped lifting cross bar frame, thereby improving the efficiency of the up and down movement of the cleaning device.

[0018] 3. The present invention arranges a fixed sleeve on the door frame connecting rod. By simply moving the fixed sleeve, the door frame connecting rod can be kept stable in the vertical direction, or the fixed sleeve can be moved to make the door frame connecting rod become a plurality of movable hinged aluminum round tubes that can be folded or disassembled, thereby greatly improving the work efficiency of assembly and transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other features, objects and advantages of the present invention will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of the vertical state of a door frame type detachable lifting device for a manhole desilting robot with a large depth-to-diameter ratio, which is mainly embodied in the present invention;

[0021] Figure 2 This is a schematic diagram of the overall structure of the horizontal state of a door frame type detachable lifting device for a manhole desilting robot with a large depth-to-diameter ratio, which is mainly embodied in the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of an aluminum round tube mainly embodied in the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the connecting rod hinge part mainly embodied in the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the top aluminum tube that mainly embodies the present invention;

[0025] Figure 6 This is a schematic diagram of the connection structure between the top aluminum round tube and the lifting beam, which mainly embodies the present invention;

[0026] Figure 7 This is a schematic diagram of the connection structure between the aluminum round tube and the fixed sleeve, which is mainly reflected in the present invention;

[0027] Figure 8 This is a schematic diagram of the structure of the lifting rod mainly embodied in the present invention;

[0028] Figure 9 This is a schematic diagram of the structure of the reversing column mainly embodied in the present invention;

[0029] Figure 10 This is a schematic diagram of the structure of the lifting beam mainly embodied in the present invention;

[0030] Figure 11 This is a structural diagram of an I-shaped lifting crossbar frame mainly embodied in the present invention;

[0031] Figure 12 This is a schematic diagram mainly showing the movement of an I-shaped lifting crossbar frame on a door frame connecting rod.

[0032] As shown in the figure: the right half of the lifting beam 1; the connecting rod hinge 2; the hinge seat 3; the fixed sleeve 4; the cylinder 5; the left half of the lifting beam 6; the I-shaped lifting crossbar frame 7; the electric hoist 8; the electric winch 9; the reversing column 10; the lifting rod 11; the clamp fixing plate 13; the top section of the aluminum round tube 14; the middle section of the aluminum round tube 15; the tail section of the aluminum round tube 16; the aluminum round tube 17; the fixed pulley 18; the pulley fixing rod 19; the reversing fixed pulley 20; the U-shaped structure 21; the ball 22; the mounting seat 23; the single ear plate 24; the double ear plate 25; the top section ear plate 26; and the square ear plate 28. DETAILED DESCRIPTION

[0033] The present invention will be described in detail below with reference to specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those skilled in the art, several changes and improvements can be made without departing from the scope of the present invention. These all fall within the scope of protection of the present invention.

[0034] like Figure 1-2 As shown, a door frame type detachable lifting device for a manhole desilting robot with a large depth-to-diameter ratio provided by the present invention includes: a door frame type connecting rod, a door frame type connecting rod lifting mechanism, an I-shaped lifting cross bar frame 7, an electric hoist 8 and a work table; the door frame type connecting rod is installed on the work table, the door frame type connecting rod is transmission-connected to the door frame type connecting rod lifting mechanism, and the bottom of the door frame type connecting rod is rotationally matched with the work table through the door frame type connecting rod lifting mechanism; the door frame type connecting rod includes two lifting connecting rods, and the tops of the two lifting connecting rods are fastened together by a lifting beam; the I-shaped lifting cross bar frame 7 is used to install a cleaning device, and the two ends of the I-shaped lifting cross bar frame 7 are respectively installed on the two lifting connecting rods; the I-shaped lifting cross bar frame 7 is transmission-connected to the electric hoist 8, and the I-shaped lifting cross bar frame 7 is slidingly matched with the lifting connecting rod through the electric hoist 8.

[0035] The present application provides a foldable, easy-to-transport, portable lifting device. In the present application, the door frame connecting rod includes a horizontal state and a vertical state. After the door frame connecting rod is assembled in the horizontal state, the door frame connecting rod is lifted by the door frame connecting rod lifting mechanism, so that the door frame connecting rod remains in a vertical state. The large depth-to-diameter ratio manhole dredging robot can be directly installed on the I-shaped lifting crossbar frame 7, and the I-shaped lifting crossbar frame 7 is driven by the electric hoist 8 to move up and down on the door frame connecting rod, thereby realizing the lifting and dredging operation of the dredging robot. After the work of this application is completed, the door frame connecting rod is also laid down by the frame connecting rod lifting mechanism, thereby realizing rapid assembly and disassembly, which is convenient for transportation.

[0036] like Figure 3-6 As shown, any lifting link includes multiple aluminum round tubes 17 hinged at the end, and the aluminum round tube 17 includes an aluminum round tube top section 14, an aluminum round tube middle section 15 and an aluminum round tube tail section 16; a single ear plate 24 is provided at the end of the aluminum round tube top section 14, and a double ear plate 25 is provided at the end of the aluminum round tube tail section 16. The single ear plate 24 and the double ear plate 25 on the two adjacent aluminum round tubes 17 are hingedly connected by a connecting rod hinge 2 and bolts.

[0037] Among them, it is special that the end of the top section 14 of the top aluminum tube 17 is provided with a top section ear plate 26, and the top ear plate 26 is installed at 90° to the double ear plate 25, which facilitates the hinged connection of the top aluminum tube 17 and the top lifting beam.

[0038] like Figure 7 As shown, the outer diameters of the aluminum tube top section 14 and the aluminum tube tail section 16 are equal, and both are smaller than the outer diameter of the aluminum tube middle section 15; a fixed sleeve 4 is sleeved on the aluminum tube top section 14, and the outer diameter of the fixed sleeve 4 is consistent with that of the aluminum tube middle section 15.

[0039] A clamp fixing plate 13 is mounted on the fixed sleeve 4 and the middle section 15 of the aluminum tube, respectively. A cylinder 5 is connected between the two clamp fixing plates 13. During assembly of the door frame connecting rod, the cylinder 5 pushes the fixed sleeve 4 to the aluminum tube tail section 16 of another aluminum tube 17 and stops, straightening and securing the two sections of aluminum tube 17. This ensures the structural stability of the door frame connecting rod when it is switched to a vertical position. By attaching the fixed sleeve 4 to the door frame connecting rod, the door frame connecting rod can be stabilized in the vertical direction by simply moving the fixed sleeve 4. Alternatively, moving the fixed sleeve 4 can transform the door frame connecting rod into multiple movable, hinged aluminum tubes 17 that can be folded or disassembled, greatly improving assembly and transportation efficiency.

[0040] The bottom of each lifting link is mounted on the work surface via a hinge seat 3. After the door frame link is assembled in a horizontal position, its bottom is hinged to the work surface via the hinge seat 3. Then, it is lifted to a vertical position by the door frame link lifting mechanism. At this time, it is fixed at the hinge seat 3, ensuring that the door frame link remains in a vertical position.

[0041] like Figure 8 and 9 As shown, the door frame type connecting rod lifting mechanism includes an electric winch 9, a reversing column 10 and a lifting rod 11. The two ends of the lifting rod 11 are circular rings, and the two ends of the lifting rod 11 are respectively mounted on the two lifting connecting rods. A fixed ring is provided in the middle of the lifting rod 11 for fixing the rope of the electric winch 9. The electric winch 9 and the reversing column 10 are both installed on the workbench. A reversing fixed pulley 20 is provided on the top of the reversing column 10. The rope of the electric winch 9 passes through the reversing fixed pulley 20 on the top of the reversing column 10 and is connected to the fixed ring for pulling up or down the door frame type connecting rod. When the door frame type connecting rod is in a vertical state, the lifting rod 11 is located higher than the reversing column 10. Therefore, driving the electric winch 9 can lift the door frame type connecting rod to a vertical state and fix it, which can effectively enhance the stability of the door frame type connecting rod.

[0042] like Figure 10 As shown, the lifting beam comprises a left section 6 and a right section 1. Matching inner holes and protrusions are provided on the sides of the left and right sections 6 and 1, respectively, adjacent to each other. The protrusion on the top of the right section 1 fits into the inner hole at the rear of the left section 6 and is secured with screws. Two square lugs 28 are provided at the ends of each section. These lugs 28 are securely connected to the lugs 26 of the top section of the aluminum tube 17, ensuring the stability of the overall doorframe-type connecting rod structure. A fixed pulley 18 and a pulley fixing rod 19 are located in the middle of the bottom of the lifting beam. The fixed pulley 18 is secured to the lifting beam via the pulley fixing rod 19.

[0043] like Figure 11 and 12 As shown, the I-shaped lifting crossbar frame 7 is placed between two lifting links, with U-shaped structures 21 installed at each end. Ball bearings 22 are installed within the U-shaped structures 21. The U-shaped structures 21 slide in conjunction with the lifting links through the ball bearings 22, thereby enabling the I-shaped lifting crossbar frame 7 to slide up and down. A retraction cylinder is installed at the tail end of the U-shaped structure 21, allowing the U-shaped structure 21 to retract inward when encountering a raised portion during the ascent, ensuring upward movement. A mounting bracket 23 is provided at the top of the I-shaped lifting crossbar frame 7 for mounting the dredging robot's cleaning module. The rope of the electric hoist 8 is connected to the cleaning module by passing it over a fixed pulley 18.

[0044] The steel cable of the electric hoist 8 fixed on the bottom work surface passes around the fixed pulley 18 under the lifting beam, and is connected to the dredging robot cleaning module on the I-shaped lifting crossbar frame 7 between the two sets of lifting links, pulling the I-shaped lifting crossbar frame 7 to slide up and down along the two sets of lifting links, thereby driving the cleaning module to rise or fall for cleaning operations.

[0045] The present application has a simple structure that greatly reduces the volume occupied during transportation. The multi-section connected aluminum tubes 17 can be folded without being disassembled into the smallest unit, making transportation more convenient. The door frame type connecting rod switches between the vertical state and the horizontal state through the door frame type connecting rod lifting mechanism, making the installation process easier and reducing manpower requirements. The electric hoist 8 drives the I-shaped lifting crossbar frame 7 up and down, driving the dredging robot to rise or descend for cleaning operations, effectively improving the cleaning efficiency. The present application has a simple structure, strong stability, easy assembly, easy disassembly, and easy transportation, and can effectively expand the scope of application.

[0046] How it works

[0047] Multiple aluminum tubes 17 are hinged end-to-end on a horizontal plane to form a lifting link. A cylinder 5 pushes a fixed sleeve 4 to the tail section 16 of another aluminum tube 17 and stops, straightening and securing the two sections of aluminum tube 17. The bottoms of the two lifting links are hinged to the work surface, and the tops are fastened together via a lifting beam to form a door-frame-style link. After the door-frame-style link is raised to a vertical position by the door-frame-style link lifting mechanism, the bottom of the door-frame-style link is fixedly connected to the work surface. An electric hoist 8 pulls the I-shaped lifting crossbar frame 7 up and down along the lifting link, thereby driving the dredging robot to ascend or descend for cleaning operations.

[0048] In the description of this application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0049] The above describes specific embodiments of the present invention. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art may make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. The embodiments of this application and the features in the embodiments may be combined with each other in any manner unless there is a conflict.

Claims

1. A door frame type detachable lifting device for a manhole desilting robot with a large depth-to-diameter ratio, characterized in that: include: Door frame type connecting rod, door frame type connecting rod lifting mechanism, I-shaped lifting cross bar frame (7), electric hoist (8) and work surface; The door frame type connecting rod is installed on the work surface, the door frame type connecting rod is in transmission connection with the door frame type connecting rod lifting mechanism, and the bottom of the door frame type connecting rod is rotatably matched with the work surface through the door frame type connecting rod lifting mechanism; The door frame type connecting rod includes two lifting connecting rods, and the tops of the two lifting connecting rods are fastened together by a lifting beam; The I-shaped lifting crossbar frame (7) is used to install a cleaning device, and the two ends of the I-shaped lifting crossbar frame (7) are respectively installed on the two lifting connecting rods; The I-shaped lifting cross bar frame (7) is in transmission connection with the electric hoist (8), and the I-shaped lifting cross bar frame (7) is in sliding cooperation with the lifting connecting rod through the electric hoist (8); Any of the lifting links comprises a plurality of aluminum round tubes (17) hinged at the head and tail, wherein the aluminum round tubes (17) comprise an aluminum round tube top section (14), an aluminum round tube middle section (15), and an aluminum round tube tail section (16); A single-ear plate (24) is provided at the end of the aluminum tube top section (14), and a double-ear plate (25) is provided at the end of the aluminum tube tail section (16). The single-ear plate (24) and the double-ear plate (25) on two adjacent aluminum tubes (17) are hingedly connected via a connecting rod hinge (2); A fixed sleeve (4) is sleeved on the top section (14) of the aluminum circular tube, and the outer diameter of the fixed sleeve (4) is consistent with that of the middle section (15) of the aluminum circular tube; A clamp fixing plate (13) is installed on the fixed sleeve (4) and the middle section (15) of the aluminum tube, respectively, and a cylinder (5) is connected between the two clamp fixing plates (13); Both ends of the I-shaped lifting crossbar frame (7) are provided with a U-shaped structure (21), and a ball (22) is provided in the U-shaped structure (21). The U-shaped structure (21) is slidably matched with the lifting connecting rod through the ball (22). A retraction cylinder is installed at the tail of the U-shaped structure (21), and when the U-shaped structure (21) encounters a protruding structure during the rising process, it can retract inward.

2. The door frame type detachable lifting device for a large depth-to-diameter ratio manhole desilting robot according to claim 1, characterized in that: The outer diameters of the aluminum tube top section (14) and the aluminum tube tail section (16) are equal, and both are smaller than the outer diameter of the aluminum tube middle section (15).

3. The door frame type detachable lifting device for a large depth-to-diameter ratio manhole desilting robot according to claim 1, characterized in that: The bottom of any lifting link is mounted on the work surface via a hinged seat (3).

4. The door frame type detachable lifting device for a large depth-to-diameter ratio manhole desilting robot according to claim 1, characterized in that: The lifting beam comprises a left half section (6) of the lifting beam and a right half section (1) of the lifting beam. The left half section (6) of the lifting beam and the right half section (1) of the lifting beam are close to each other and are respectively provided with a matching inner hole and a protrusion. The inner hole and the protrusion are embedded and connected and fastened by screws.

5. The door frame type detachable lifting device for a large depth-to-diameter ratio manhole desilting robot according to claim 1, characterized in that: A fixed pulley (18) and a pulley fixing rod (19) are provided at the bottom of the lifting beam, and a rope of the electric hoist (8) passes around the fixed pulley (18) and is connected to the cleaning device.

6. The door frame type detachable lifting device for a large depth-to-diameter ratio manhole desilting robot according to claim 1, characterized in that: A mounting seat (23) is provided on the top of the I-shaped lifting crossbar frame (7) for mounting the cleaning device.

7. The door frame type detachable lifting device for a large depth-to-diameter ratio manhole desilting robot according to claim 1, characterized in that: The door frame type connecting rod lifting mechanism comprises an electric winch (9), a reversing column (10) and a lifting rod (11), the two ends of the lifting rod (11) are respectively mounted on the two lifting connecting rods, and the electric winch (9) and the reversing column (10) are both mounted on the work surface; A fixing ring is provided in the middle of the lifting rod (11), and the rope of the electric winch (9) is connected to the fixing ring by passing around the reversing column (10).

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