Three-rod detachable lifting device for desilting manholes with large depth-to-diameter ratio

Abstract

The present invention provides a three-rod detachable lifting device for desilting manholes with a large depth-to-diameter ratio, comprising a lifting connecting rod mounted on a work surface; the lifting connecting rod comprises: a No. 1 lifting connecting rod, a No. 2 lifting connecting rod, and a No. 3 lifting connecting rod, the three forming an isosceles triangle with the No. 1 lifting connecting rod as the vertex; the lifting connecting rod is transmission-connected to a connecting rod lifting mechanism; an I-shaped lifting cross bar frame is used to install a cleaning device; and the cross bar lifting mechanism is transmission-connected to the I-shaped lifting cross bar frame. The present invention helps improve the stability of the overall structure by adopting three lifting connecting rods; the connecting rod lifting mechanism switches the lifting connecting rod between a vertical state and a horizontal state, helping to reduce manpower requirements; the cross bar lifting mechanism drives the I-shaped lifting cross bar frame to move up and down, helping to improve the cleaning efficiency of the cleaning device; the simple structure provides strong stability, easy assembly and disassembly, and convenient transportation, helping 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 three-rod detachable lifting device for desilting operations in manholes with a large depth-to-diameter ratio. 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 heavy, and extremely inconvenient to transport. While smaller than the folding arm type, the sleeve cylinder and mast types are also non-detachable, making transportation more difficult. This makes them particularly inconvenient for desilting manholes 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 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 three-rod detachable lifting device for desilting operations in manholes with a large depth-to-diameter ratio.

[0005] According to the present invention, a three-rod detachable lifting device for dredging operations in manholes with a large depth-to-diameter ratio is provided, comprising: a lifting link, a link lifting mechanism, an I-shaped lifting cross bar frame, a cross bar lifting mechanism and a work surface, wherein the lifting link is installed on the work surface; the lifting link comprises: a No. 1 lifting link, a No. 2 lifting link and a No. 3 lifting link, the three forming an isosceles triangle with the No. 1 lifting link as the vertex angle; the lifting link is transmission-connected to the link lifting mechanism, and the lifting link is rotationally matched with the work surface through the link lifting mechanism; 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 mounted on the No. 2 lifting link and the No. 3 lifting link; the cross bar lifting mechanism is transmission-connected to the I-shaped lifting cross bar frame, and the I-shaped lifting cross bar frame is slidingly matched with the lifting link through the cross bar lifting mechanism.

[0006] Preferably, any of the lifting links comprises a plurality of aluminum round tubes connected end to end, and any two adjacent aluminum round tubes can be detachably connected.

[0007] Preferably, a hinge seat is installed at the bottom of any lifting link, and the lifting link is installed on the work surface through the hinge seat.

[0008] Preferably, the top ends of the No. 1 lifting link, the No. 2 lifting link and the No. 3 lifting link are connected in pairs through a lifting beam.

[0009] Preferably, the crossbar lifting mechanism includes an electric hoist, a lifting fixed pulley and a pulley fixing rod, the electric hoist is installed on the work surface; one end of the pulley fixing rod is installed with the lifting fixed pulley, and the other end is installed on any of the lifting beams; the rope of the electric hoist passes through the lifting fixed pulley from bottom to top and is connected to the cleaning device.

[0010] Preferably, the middle portion of the No. 1 lifting link is respectively fastened to the No. 2 lifting link and the No. 3 lifting link through side links.

[0011] Preferably, the connecting rod 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 No. 2 lifting link and the No. 3 lifting link, and the electric winch and the reversing column are both installed on the work table; a reversing fixed pulley is provided on the top of the reversing column, and a fixed ring is provided in the middle of the lifting rod, and the rope of the electric winch is passed around the reversing fixed pulley and is fastened to the fixed ring.

[0012] Preferably, the bottoms of the No. 1 lifting link, the No. 2 lifting link and the No. 3 lifting link are fastened together by a fixing frame; the fixing frame is located above the lifting rod and below the I-shaped lifting cross bar frame.

[0013] Preferably, U-shaped structures are provided on both sides of the I-shaped lifting cross bar frame, and balls are provided in the U-shaped structures. The I-shaped lifting cross bar frame is slidably matched with the lifting connecting rod through the balls.

[0014] Preferably, a retraction cylinder is installed at the tail of the U-shaped structure.

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

[0016] 1. The present invention helps to improve the stability of the overall structure by forming three lifting links in an isosceles triangle; the link lifting mechanism switches the lifting links between the vertical and horizontal states, making the installation process easier and helping to reduce manpower requirements; the cross bar lifting mechanism drives the I-shaped lifting cross bar frame to move up and down, which helps to improve the cleaning efficiency of the cleaning device; the simple structure has strong stability, is easy to assemble and disassemble, and is convenient to transport, which helps to expand the scope of application.

[0017] 2. The present invention forms a lifting connecting rod by connecting multiple aluminum round tubes end to end, which is convenient for installation and disassembly, helps to improve assembly efficiency, and helps to reduce the volume occupied during transportation; it is reinforced by the top lifting beam, the middle side connecting rod and the bottom fixing frame, which helps to improve the stability of the overall structure.

[0018] 3. 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 lifting connecting rod, but also facilitates installation, greatly improving assembly efficiency; the retraction cylinder provided at the tail of the U-shaped structure can adapt to the protrusions of each reinforcement structure installed on the lifting connecting rod, ensuring that the I-shaped lifting cross bar frame can move up and down smoothly, thereby improving the efficiency of the up and down movement of the cleaning device. 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 three-rod detachable lifting device in a vertical state for desilting operations in manholes with a large depth-to-diameter ratio, which is mainly embodied in the present invention;

[0021] Figure 2 This is a schematic structural diagram of a three-rod detachable lifting device in a horizontal state for desilting operations in a manhole 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 the connection of two aluminum round tubes mainly embodied in the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the connection between the lifting connecting rod and the lifting beam of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the fixing frame mainly embodied in the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the hinge seat mainly embodied in the present invention;

[0026] Figure 7 This is a schematic structural diagram of the present invention mainly showing the connection between the hinge seat and the lifting connecting rod;

[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 pulley fixing rod mainly embodied in the present invention;

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

[0031] Shown in the figure: aluminum round tube 1; hinged seat 2; No. 1 lifting link 3; No. 2 lifting link 4; No. 3 lifting link 5; side link 6; lifting beam 7; I-shaped lifting crossbar frame 8; U-shaped structure 9; ball bearing 10; electric hoist 11; lifting fixed pulley 12; pulley fixing rod 13; electric winch 14; reversing column 15; lifting rod 16; screw 17; work table 18; fixing ring 19; reversing fixed pulley 20; fixing frame 22; retraction cylinder 23; hole 24. DETAILED DESCRIPTION

[0032] 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.

[0033] like Figure 1-2 As shown, according to the present invention, a three-rod detachable lifting device for dredging operations of manholes with a large depth-to-diameter ratio is provided, comprising: a lifting connecting rod, a connecting rod lifting mechanism, an I-shaped lifting cross bar frame 8, a cross bar lifting mechanism and a work surface 18, wherein the lifting connecting rod is installed on the work surface 18; the lifting connecting rod comprises: a No. 1 lifting connecting rod 3, a No. 2 lifting connecting rod 4 and a No. 3 lifting connecting rod 5, the three of which constitute an isosceles triangle with the No. 1 lifting connecting rod 3 as the vertex angle; the lifting connecting rod is connected to the connecting rod lifting mechanism in a transmission manner, and the lifting connecting rod is rotatably matched with the work surface 18 through the connecting rod lifting mechanism; the I-shaped lifting cross bar frame 8 is used to install a cleaning device, and the two ends of the I-shaped lifting cross bar frame 8 are respectively installed on the No. 2 lifting connecting rod 4 and the No. 3 lifting connecting rod 5; the cross bar lifting mechanism is connected to the I-shaped lifting cross bar frame 8 in a transmission manner, and the I-shaped lifting cross bar frame 8 is slidably matched with the lifting connecting rod through the cross bar lifting mechanism.

[0034] The present application provides a detachable, easy-to-transport, portable lifting device. The lifting connecting rod in the present application includes a horizontal state and a vertical state. The lifting connecting rod is assembled in a horizontal state, lifted to a vertical state by a connecting rod lifting mechanism, and fastened to a work surface 18. Driven by the crossbar lifting mechanism, the I-shaped lifting crossbar frame 8 slides up and down along the lifting connecting rod, thereby driving the dredging robot installed on the I-shaped lifting crossbar frame 8 to perform a cleaning action. After the work is completed, the lifting connecting rod is laid down to a horizontal state by the connecting rod lifting mechanism for disassembly. The present application has a simple structure, can be quickly assembled and disassembled, is easy to transport, and greatly saves labor and transportation costs.

[0035] like Figure 3As shown, each lifting link comprises multiple aluminum tubes 1 connected end-to-end, and any two adjacent aluminum tubes 1 can be detachably connected. One end of the aluminum tube 1 is retracted inward to facilitate insertion into the end of the adjacent aluminum tube 1. Screw holes are provided at the joint between the two adjacent aluminum tubes 1, which are secured by inserting screws 17 to ensure the structural stability of the single lifting link. During disassembly, the aluminum tubes 1 can be separated by simply removing screws 17, greatly improving assembly and disassembly efficiency. Furthermore, the small size of the aluminum tubes 1 facilitates transportation, greatly enhancing their applicability.

[0036] like Figure 4 As shown, the tops of the No. 1, No. 2, and No. 3 lifting links 3, 4, and 5 are all connected in pairs via three lifting beams 7. That is, a lifting beam 7 is connected between the No. 1 and No. 2 lifting links 4, a lifting beam 7 is connected between the No. 1 and No. 3 lifting links 5, and a lifting beam 7 is connected between the No. 2 and No. 3 lifting links 5. The three lifting links are stably connected through a hinged connection. A double-ear plate is provided at the top of the aluminum circular tube 1 at the top. Mounting plates extend outward from the ends of two adjacent lifting beams 7. The two mounting plates are spliced ​​and installed within the double-ear plate. The three mounting plates are securely connected, thereby securing the tops of the three lifting links and ensuring the stability of the structure.

[0037] The middle part of the No. 1 lifting link 3 is fastened to the No. 2 lifting link 4 and the No. 3 lifting link 5 through the side links 6. Two side links 6 are provided between the No. 1 lifting link 3 and the No. 2 lifting link 4, and the two side links 6 form a triangle with the No. 1 lifting link 3. Similarly, two side links 6 are provided between the No. 1 lifting link 3 and the No. 3 lifting link 5, and the two side links 6 form a triangle with the No. 1 lifting link 3. The side links 6 make full use of the stability of the triangle to strengthen the firmness of the middle part of the three lifting links. Preferably, mounting rings are provided at both ends of the side links 6 for being mounted on the lifting links. While strengthening, it does not affect the up and down sliding of the I-shaped lifting cross bar frame 8. Furthermore, the side links 6 on both sides of the No. 1 lifting link 3 are distributed up and down, which helps to stabilize the middle part of the lifting link over a large range.

[0038] like Figure 5 As shown, the bottoms of the first, second, and third lifting links 3, 4, and 5 are securely connected by a fixing bracket 22. Fixing bracket 22 is triangular, aligning with the triangle formed by the three lifting links. The three corners of fixing bracket 22 are equipped with collars, which fit over the aluminum tubes 1 at the bottoms of the three lifting links, reinforcing the bottoms of the lifting links and ensuring stability after the three links are connected. Furthermore, fixing bracket 22 prevents the first lifting link 3 from sagging when the lifting links are installed horizontally.

[0039] like Figure 6 and 7 As shown, an articulated seat 2 is installed at the bottom of each lifting link, and the lifting link is installed on the work surface 18 through the articulated seat 2. The three articulated seats 2 are fixed to the work surface 18 from the beginning. After the lifting links are assembled in a horizontal state, the second lifting link 4 and the third lifting link 5 are respectively hingedly connected to the articulated seat 2. After being lifted to a vertical state by the link lifting mechanism, the first lifting link 3 also reaches the articulated seat 2. At this time, screws are passed through the holes 24 on the articulated seat 2 to achieve the fastening installation of the three lifting links and fix the three lifting links to the work surface 18, thereby ensuring the stability of the lifting links in the vertical direction.

[0040] like Figure 8 and 9 As shown, the connecting rod lifting mechanism includes an electric winch 14, a reversing column 15, and a lifting rod 16. The lifting rod 16 has circular rings at both ends, mounted on the second and third lifting links 4 and 5, respectively, and located below the fixed bracket 22. A fixing ring 19 is provided in the middle of the lifting rod 16 to secure the rope of the electric winch 14. The electric winch 14 and the reversing column 15 are both mounted on a work surface 18. A reversing fixed pulley 20 is provided at the top of the reversing column 15. The rope of the electric winch 14 passes over the reversing fixed pulley 20 and is fastened to the fixing ring 19, used to pull up or down the lifting links. To conserve the installation area of ​​the work surface 18, the electric winch 14 and the reversing column 15 are both mounted inside the triangle formed by the three lifting links. Therefore, when in a horizontal position, the height of the first lifting link 3 is necessarily greater than that of the reversing column 15, so that the reversing column 15 does not interfere with the lifting of the first lifting link 3.

[0041] like Figure 10 As shown, the crossbar lifting mechanism includes an electric hoist 11, a lifting fixed pulley 12, and a pulley fixing rod 13. The electric hoist 11 is mounted on a work surface 18. One end of the pulley fixing rod 13 is mounted with the lifting fixed pulley 12, and the other end is mounted on one of the lifting beams 7. The rope of the electric hoist 11 passes from bottom to top around the lifting fixed pulley 12 and connects to the cleaning device of the garbage cleaning robot, achieving the up and down movement of the cleaning device. The rope of the electric hoist 11 can also be directly connected to the I-shaped lifting crossbar frame 8. Operating the electric hoist 11 as needed drives the I-shaped lifting crossbar frame 8 up or down, thereby driving the cleaning device of the garbage cleaning robot up and down to perform silt removal operations.

[0042] like Figure 11As shown, a mounting seat is provided in the middle of the top of the I-shaped lifting crossbar frame 8 for installing the cleaning device of the cleaning robot. U-shaped structures 9 are provided on both sides of the I-shaped lifting crossbar frame 8. Ball bearings 10 are provided inside the U-shaped structure 9. The I-shaped lifting crossbar frame 8 slides with the lifting connecting rod through the ball bearings 10, thereby achieving up and down sliding. The I-shaped lifting crossbar frame 8 is installed above the fixed frame 22, thereby ensuring that the I-shaped lifting crossbar frame 8 is at a distance from one end of the work surface 18, which is convenient for the installation of the cleaning robot. A retraction cylinder 23 is installed at the tail of the U-shaped structure 9, so that the U-shaped structure 9 can retract inward when encountering a raised part during the rising process to ensure the rising movement.

[0043] The main body of the present application is a multi-section connected lifting connecting rod, which can be disassembled as a whole, greatly reducing the volume occupied during transportation and making transportation more convenient. The vertical state and the horizontal state are switched by the electric winch 14, making the installation process easier and reducing the manpower requirements. Through the reinforcement of the top lifting beam 7 and the side connecting rod 6, the large depth-to-diameter ratio manhole dredging robot is more stable and reliable in the lifting and dredging operation. Through the lifting function of the I-shaped lifting crossbar frame 8 and the electric hoist 11, the large depth-to-diameter ratio manhole dredging robot is more flexible and has higher cleaning efficiency in the lifting and dredging operation. The present application has a simple structure, strong stability, easy assembly and disassembly, and convenient transportation, and can effectively expand the scope of application.

[0044] How it works

[0045] A plurality of aluminum round tubes 1 are assembled end to end in a horizontal state to form three lifting links. The tops of the three lifting links are connected in pairs through three lifting beams 7. The bottoms of the three lifting links are fastened together by a fixing frame 22. The middle of the No. 1 lifting link 3 is fastened to the No. 2 lifting link 4 and the No. 3 lifting link 5 respectively through the side links 6. After the lifting links are assembled in a horizontal state, the No. 2 lifting link 4 and the No. 3 lifting link 5 are respectively hinged to the articulated seat 2. After being lifted to a vertical state by driving the electric winch 14, the three lifting links are fixed to the work surface 18 by screws passing through the holes 24 on the articulated seat 2. Then, the cleaning device of the cleaning robot is installed on the I-shaped lifting crossbar frame 8. By driving the electric hoist 11, the cleaning robot is pulled up or down to perform silt removal operations.

[0046] 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.

[0047] 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 three-rod detachable lifting device for desilting manholes with a large depth-to-diameter ratio, characterized in that: include: A lifting connecting rod, a connecting rod lifting mechanism, an I-shaped lifting crossbar frame (8), a crossbar lifting mechanism, and a work surface (18), wherein the lifting connecting rod is mounted on the work surface (18); The lifting connecting rods include: a No. 1 lifting connecting rod (3), a No. 2 lifting connecting rod (4), and a No. 3 lifting connecting rod (5), which form an isosceles triangle with the No. 1 lifting connecting rod (3) as the vertex angle; The lifting link is in transmission connection with the link lifting mechanism, and the lifting link is rotationally engaged with the work surface (18) through the link lifting mechanism; The I-shaped lifting crossbar frame (8) is used to install a cleaning device, and the two ends of the I-shaped lifting crossbar frame (8) are respectively installed on the second lifting connecting rod (4) and the third lifting connecting rod (5); The crossbar lifting mechanism is in transmission connection with the I-shaped lifting crossbar frame (8), and the I-shaped lifting crossbar frame (8) is in sliding cooperation with the lifting connecting rod through the crossbar lifting mechanism; The bottoms of the second lifting link (4) and the third lifting link (5) are both installed with hinged seats (2), and the lifting links are installed on the work surface (18) through the hinged seats (2); The top ends of the first lifting link (3), the second lifting link (4) and the third lifting link (5) are connected in pairs via a lifting beam (7); The crossbar lifting mechanism comprises an electric hoist (11), a lifting fixed pulley (12) and a pulley fixing rod (13), wherein the electric hoist (11) is mounted on the work surface (18); One end of the pulley fixing rod (13) is mounted with the lifting fixed pulley (12), and the other end is mounted on any one of the lifting beams (7); The rope of the electric hoist (11) passes through the lifting fixed pulley (12) from bottom to top and is connected to the cleaning device; Both sides of the I-shaped lifting crossbar frame (8) are provided with U-shaped structures (9), and balls (10) are provided in the U-shaped structures (9). The I-shaped lifting crossbar frame (8) is slidably engaged with the lifting connecting rod via the balls (10); A retraction cylinder (23) is installed at the tail of the U-shaped structure (9).

2. The three-rod detachable lifting device for desilting manholes with a large depth-to-diameter ratio according to claim 1 is characterized in that: Any of the lifting connecting rods comprises a plurality of aluminum round tubes (1) connected end to end, and any two adjacent aluminum round tubes (1) can be detachably connected.

3. The three-rod detachable lifting device for desilting manholes with a large depth-to-diameter ratio according to claim 1 is characterized in that: The middle portion of the No. 1 lifting link (3) is respectively fastened to the No. 2 lifting link (4) and the No. 3 lifting link (5) via side links (6).

4. The three-rod detachable lifting device for desilting manholes with a large depth-to-diameter ratio according to claim 1 is characterized in that: The connecting rod lifting mechanism includes an electric winch (14), a reversing column (15) and a lifting rod (16), the two ends of the lifting rod (16) are respectively mounted on the second lifting connecting rod (4) and the third lifting connecting rod (5), and the electric winch (14) and the reversing column (15) are both mounted on the work surface (18); A reversing fixed pulley (20) is provided on the top of the reversing column (15), a fixing ring (19) is provided in the middle of the lifting rod (16), and a rope of the electric winch (14) is passed around the reversing fixed pulley (20) and is fastened to the fixing ring (19).

5. The three-rod detachable lifting device for desilting manholes with a large depth-to-diameter ratio according to claim 4 is characterized in that: The bottoms of the No. 1 lifting link (3), the No. 2 lifting link (4), and the No. 3 lifting link (5) are fastened together via a fixing frame (22); The fixing frame (22) is located above the lifting rod (16) and below the I-shaped lifting crossbar frame (8).

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