Well lid lifting device for communication engineering construction

Abstract

The utility model belongs to the technical field of communication engineering construction tools, and discloses a well lid extracting device for communication engineering construction, which comprises a rack capable of walking on the ground, a hoisting assembly for fixing a well lid is arranged on the rack, and the hoisting assembly is in transmission connection with a driving assembly arranged on the rack; the lifting assembly comprises a lifting plate connected to the rack in a sliding mode, and the lifting plate is in transmission connection with the driving assembly. The bottom end of the lifting plate is slidably connected with two symmetrically-arranged lifting rods, a plurality of clamping rods are arranged on the lifting rods in the circumferential direction at equal intervals, and the bottom ends of the clamping rods penetrate through the well lid and are connected with the well lid in a limiting mode. The clamping rod comprises a movable rod movably connected to the lifting rod, and the movable rod is in transmission connection with a driving rod movably connected to the lifting rod. The well lid lifting device is simple in structure, convenient to use, capable of achieving safe and efficient lifting and playback of well lids, time-saving and labor-saving, greatly reduces danger during manual lifting, and facilitates underground construction.

Description

Technical Field

[0001] The utility model belongs to the technical field of communication engineering construction tools, and in particular relates to a manhole cover extraction device for communication engineering construction. Background Art

[0002] In communication projects, communication equipment and lines in some cities are located underground to reduce the occupation of ground space. In order to facilitate the maintenance and overhaul of underground lines and equipment, a large number of cable wells, optical fiber wells, and communication wells need to be designed. In order to improve safety, closed manhole covers are installed at the wellheads of these cable wells, optical fiber wells, and communication wells.

[0003] At present, most of the extraction methods available on the market are to manually pry up the manhole covers with external auxiliary tools such as hooks. Since most manhole covers are relatively heavy, when workers with less strength try to extract the manhole covers, they are prone to being unable to lift them, which increases the difficulty of the workers' work in extracting the manhole covers, causing great inconvenience to the workers and thus reducing work efficiency. At the same time, it is inconvenient to put the manhole covers back, and it is easy to squeeze the hands when putting them back, which is very dangerous.

[0004] Therefore, the present application designs a manhole cover extraction device for communication engineering construction to solve the above-mentioned technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model proposes a manhole cover extraction device for communication engineering construction.

[0006] To achieve the above-mentioned purpose, the utility model provides a manhole cover extraction device for communication engineering construction, comprising a frame that can walk on the ground, a lifting assembly for fixing the manhole cover is arranged on the frame, and the lifting assembly is transmission-connected with a driving assembly arranged on the frame;

[0007] The lifting assembly comprises a lifting plate slidably connected to the frame, and the lifting plate is in driving connection with the driving assembly; the bottom end of the lifting plate is slidably connected to two symmetrically arranged lifting rods, and a plurality of clamping rods are circumferentially evenly spaced on the lifting rods, and the bottom ends of the clamping rods pass through the manhole cover and are limitedly connected to the manhole cover;

[0008] The clamping rod comprises a movable rod movably connected to the lifting rod, and the movable rod is transmission-connected to an active rod movably connected to the lifting rod.

[0009] Preferably, an adjusting screw sleeve is threadedly connected to the lifting rod, and the adjusting screw sleeve is rotatably connected to a movable ring slidably connected to the lifting rod. A plurality of clearance grooves are longitudinally opened on the side wall of the lifting rod, and the movable rod and the active rod are both arranged in the clearance grooves, and the top end of the active rod is fixedly connected to the bottom end of the movable ring.

[0010] Preferably, the movable rod includes a first support rod rotatably connected to the bottom end of the give way groove, the other end of the first support rod is connected to a second support rod, and the end of the second support rod away from the first support rod extends into the give way groove and is transmission connected to the bottom end of the active rod.

[0011] Preferably, a return spring is fixedly connected between the top end of the movable ring and the top end of the inner cavity of the lifting rod.

[0012] Preferably, the driving assembly includes a driving motor arranged on the frame, the output shaft of the driving motor is transmission-connected to a driving rod, and the driving rod is fixed to the frame through a plurality of support blocks; a plurality of lifting wheels are arranged on the driving rod, a connecting rope is wound around the lifting wheel, and the connecting rope is transmission-connected to the lifting plate.

[0013] Preferably, the support block comprises a fixed block fixedly mounted on the frame, the fixed block is interactively connected with a movable block, a fixed bearing is clamped and fixed between the fixed block and the movable block, and the drive rod is mounted on the fixed bearing.

[0014] Preferably, the frame includes a base plate, a plurality of support columns are fixedly connected to the base plate, a top plate is fixedly connected between the top ends of the plurality of support columns, the drive motor and the support block are fixedly mounted on the top plate; the connecting rope passes through the top plate and is movably connected to the top plate.

[0015] Preferably, a through hole is formed through the bottom plate, and the manhole cover is lifted to the top of the bottom plate through the through hole.

[0016] Preferably, a plurality of fixed shafts are rotatably connected to the bottom plate, and the plurality of fixed shafts are equally spaced around the through hole; an elliptical clamping plate is fixedly connected to the fixed shaft, and the clamping plate is in limiting contact with the manhole cover.

[0017] Preferably, a plurality of universal wheels are provided on the bottom plate.

[0018] Compared with the prior art, the utility model has the following advantages and technical effects: the utility model discloses a manhole cover extraction device for communication engineering construction, which is mainly used for efficiently and quickly taking and placing the manhole cover; when in use, the frame is moved above the manhole cover, the lifting assembly is controlled to move downward by the driving assembly to fix the manhole cover, and then the driving assembly is started in reverse to drive the lifting assembly to rise and lift the manhole cover, and finally the frame is moved to move the manhole cover to other places, which is easy and convenient, highly safe, and convenient for subsequent inspection and maintenance of equipment and lines in the well; after the construction is completed, the frame is Move to the wellhead position so that the wellhead cover is facing the wellhead, then put the wellhead cover back on the wellhead, and finally separate the lifting assembly from the wellhead to complete the construction; the lifting plate is driven by the driving assembly to rise and fall, thereby driving the lifting rod to rise and fall, the bottom end of the lifting rod passes through the through hole on the wellhead cover, and then is stuck in the through hole of the wellhead cover through the deflection and expansion of a number of clamping rods, so that the lifting rod cannot be separated from the wellhead cover, thereby facilitating the lifting of the wellhead cover; the active rod moves longitudinally on the lifting rod, and the active rod drives the movable rod to fold and move, and its outer diameter becomes larger, and is stuck in the light hole of the wellhead cover to fix the wellhead cover.

[0019] The utility model has the advantages of simple structure, convenient use, safe and efficient extraction and replay of the manhole cover can be realized, time and labor are saved, the danger during manual extraction is greatly reduced, and underground construction is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0021] Figure 1 This is an axial view of the manhole cover extraction device for communication engineering construction of the utility model;

[0022] Figure 2 This is a schematic diagram of the main structure of the manhole cover extraction device for communication engineering construction of the utility model;

[0023] Figure 3 This is a view of the lifting rod axis of the utility model;

[0024] Figure 4 This is a schematic diagram of the lifting rod structure of the utility model;

[0025] Figure 5 For this utility model Figure 4 A partial enlarged view of middle A;

[0026] Figure 6 This is the axial view of the support block of the utility model;

[0027] In the figure: 1. lifting plate; 2. lifting rod; 3. manhole cover; 4. movable rod; 5. active rod; 6. adjusting screw sleeve; 7. movable ring; 8. clearance groove; 9. first support rod; 10. second support rod; 11. reset spring; 12. limit groove; 13. drive motor; 14. drive rod; 15. lifting wheel; 16. connecting rope; 17. fixed block; 18. movable block; 19. fixed bearing; 20. bottom plate; 21. support column; 22. top plate; 23. through hole; 24. fixed shaft; 25. clamping plate; 26. universal wheel; 27. ball head; 28. lifting ring; 29. ​​telescopic rod; 30. pressure plate; 31. support block. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0030] Reference Figure 1-Figure 6 As shown, this embodiment provides a manhole cover extraction device for communication engineering construction, including a frame that can walk on the ground, a lifting assembly for fixing the manhole cover 3 is arranged on the frame, and the lifting assembly is transmission-connected with a driving assembly arranged on the frame;

[0031] The lifting assembly includes a lifting plate 1 slidably connected to the frame, and the lifting plate 1 is transmission-connected to the driving assembly; the bottom end of the lifting plate 1 is slidably connected to two symmetrically arranged lifting rods 2, and a plurality of clamping rods are circumferentially evenly spaced on the lifting rods 2, and the bottom ends of the clamping rods pass through the manhole cover 3 and are limitedly connected to the manhole cover 3;

[0032] The clamping rod comprises a movable rod 4 movably connected to the lifting rod 2 , and the movable rod 4 is transmission-connected to an active rod 5 movably connected to the lifting rod 2 .

[0033] The utility model discloses a manhole cover extraction device for communication engineering construction, which is mainly used for efficiently and quickly taking and placing the manhole cover 3; when in use, the frame is moved to the top of the manhole cover 3, the lifting assembly is controlled by the driving assembly to move downward, the manhole cover 3 is fixed, and then the driving assembly is started in reverse to drive the lifting assembly to rise, the manhole cover 3 is lifted, and finally the frame is moved to move the manhole cover 3 to other places, which is easy and convenient, with high safety, and is convenient for subsequent inspection and maintenance of equipment and lines in the well; after the construction is completed, the frame is moved to the wellhead position so that the manhole cover 3 is facing the wellhead, and then Then put down the manhole cover 3 and cover it back on the wellhead, and finally separate the lifting assembly from the manhole cover 3 to complete the construction; the lifting plate 1 is lifted and lowered under the drive of the driving assembly, thereby driving the lifting rod 2 to lift and lower, and the bottom end of the lifting rod 2 passes through the through hole on the manhole cover 3, and then through the deflection and expansion of a number of clamping rods, it is stuck in the through hole of the manhole cover 3, so that the lifting rod 2 cannot be separated from the manhole cover 3, which is convenient for lifting the manhole cover 3; the active rod 5 moves longitudinally on the lifting rod 2, and the active rod 5 drives the movable rod 4 to fold and move, and its outer diameter becomes larger, and is stuck in the light hole of the manhole cover 3 to fix the manhole cover 3. The utility model has a simple structure and is easy to use. It can realize the safe and efficient extraction and playback of the manhole cover 3, saves time and labor, greatly reduces the danger of manual extraction, and is convenient for underground construction.

[0034] Furthermore, a lifting rod is fixedly connected to the bottom end of the lifting plate, and a pressure plate 30 is fixedly connected to the interactive section of the lifting rod. When the manhole cover 3 is lifted, the telescopic rod 29 is extended to press the pressure plate 30 on the manhole cover 3, and the manhole cover 3 is fixed in combination with the movable rod 4, thereby improving the stability of the manhole cover 3.

[0035] Further optimization scheme, the lifting rod 2 is threadedly connected with an adjusting screw sleeve 6, and the adjusting screw sleeve 6 is rotatably connected with the movable ring 7 slidably connected to the lifting rod 2. The side wall of the lifting rod 2 is longitudinally provided with a plurality of clearance grooves 8, and the movable rod 4 and the active rod 5 are both arranged in the clearance grooves 8, and the top of the active rod 5 is fixedly connected with the bottom of the movable ring 7. When the adjusting screw sleeve 6 rotates, it rises and falls along the lifting rod 2, driving the movable ring 7 to rise and fall, and then exerting force on the movable rod 4 through the active rod 5, so that the movable rod 4 expands, so that the bottom end of the lifting rod 2 will not be separated from the through hole of the manhole cover 3, and the lifting of the manhole cover 3 is realized; the active rod 5 and the movable rod 4 are both arranged in the clearance grooves 8, so that they will not protrude from the lifting rod 2 to prevent interference; when lifting, the movable rod 4 extends out of the clearance grooves 8 and clamps the manhole cover 3.

[0036] Furthermore, a ball head 27 is provided at the bottom end of the lifting rod 2 to facilitate insertion into the through hole, thereby achieving lifting of the manhole cover 3 .

[0037] Further optimized solution, the movable rod 4 includes a first support rod 9 rotatably connected to the bottom end of the clearance groove 8, the other end of the first support rod 9 is connected to the second support rod 10, and the end of the second support rod 10 away from the first support rod 9 extends into the clearance groove 8 and is transmission-connected with the bottom end of the active rod 5. The movable rod 4 is formed by hingedly connecting the first support rod 9 and the second support rod 10, the bottom end of the first support rod 9 is hinged to the bottom end of the clearance groove 8, and the end of the second support rod 10 hinged to the active rod 5 is located in the clearance groove 8, and as the bottom end of the active rod 5 rises and falls in the clearance groove 8, the angle between the first support rod 9 and the second support rod 10 changes, and the length of the hinge point of the two extending out of the clearance groove 8 changes, thereby achieving the clamping connection with the manhole cover 3.

[0038] According to a further optimized solution, a return spring 11 is fixedly connected between the top of the movable ring 7 and the top of the inner cavity of the lifting rod 2 .

[0039] Further optimization scheme, the driving assembly includes a driving motor 13 arranged on the frame, the output shaft of the driving motor 13 is connected to the driving rod 14, and the driving rod 14 is fixed to the frame through a plurality of support blocks 31; a plurality of lifting wheels 15 are arranged on the driving rod 14, and a connecting rope 16 is wound around the lifting wheel 15, and the connecting rope 16 is connected to the lifting plate 1. The driving motor 13 drives the lifting wheel 15 to rotate through the driving rod 14, thereby realizing the winding and lifting of the connecting rope 16; the other end of the connecting rope 16 is fixedly connected to the lifting ring 28 on the lifting plate 1, which plays the role of driving the lifting plate 1 to rise and fall; the role of the support block 31 is to support the support rod and improve stability.

[0040] Further optimizing the scheme, the support block 31 includes a fixed block 17 fixedly mounted on the frame, a movable block 18 is interactively connected to the fixed block 17, a fixed bearing 19 is clamped and fixed between the fixed block 17 and the movable block 18, and the drive rod 14 is mounted on the fixed bearing 19. The support block 31 is composed of a fixed block 17 fixed on the frame and a movable block 18 snap-fitted and connected to the fixed block 17. The fixed block 17 and the interactive tube clamp and fix the fixed bearing 19 mounted on the drive rod 14, which is convenient for loading and unloading while meeting the stability requirements.

[0041] Further optimization scheme, the frame includes a bottom plate 20, a plurality of support columns 21 are fixedly connected to the bottom plate 20, a top plate 22 is fixedly connected between the tops of the plurality of support columns 21, the drive motor 13 and the support block 31 are fixedly installed on the top plate 22; the connecting rope 16 passes through the top plate 22 and is movably connected to the top plate 22. The bottom plate 20 serves as the foundation of the device, and the supports on both sides support and fix the top plate 22. The drive motor 13 and the fixing block 17 are both installed on the top plate 22. The connecting rope 16 passes through the top plate 22 and drives the lifting plate 1 to rise and fall.

[0042] Furthermore, limiting grooves 12 are arranged on two opposite sides of the support column 21, and both ends of the lifting plate slide in the limiting grooves 12 to fix and limit the lifting plate.

[0043] In a further optimized solution, a through hole 23 is provided through the bottom plate 20, and the manhole cover 3 is lifted to the top of the bottom plate 20 through the through hole 23. The diameter of the through hole 23 is larger than the diameter of the manhole cover 3, so that the manhole cover 3 can pass through conveniently.

[0044] In a further optimized solution, a plurality of fixed shafts 24 are rotatably connected to the bottom plate 20, and the plurality of fixed shafts 24 are equally spaced around the through hole 23; an elliptical clamping plate 25 is fixedly connected to the fixed shaft 24, and the clamping plate 25 is in limited contact with the manhole cover 3. The clamping plate 25 is elliptical, and the length of its short axis is not greater than the distance between the fixed shaft 24 and the edge of the through hole 23, while the length of its long axis is greater than the distance between the fixed shaft 24 and the edge of the through hole 23. When the manhole cover 3 needs to pass through, the short axis of the clamping plate 25 is directed toward the through hole 23, so that the manhole cover 3 can pass smoothly; and when the manhole cover 3 needs to be fixed, the clamping plate 25 is rotated so that the long axis of the clamping plate 25 is directed toward the through hole 23, so that the clamping plate 25 can clamp the manhole cover 3, and prevent the danger caused by the manhole cover 3 falling.

[0045] Furthermore, the top and bottom ends of the clamping plate 25 are respectively provided with anti-skid grooves to prevent the manhole cover 3 from slipping.

[0046] Further optimizing scheme, a plurality of universal wheels 26 are arranged on the bottom plate 20. The universal wheels 26 are convenient for driving the frame to move, and the lifted manhole cover 3 can be moved to a safe position.

[0047] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only 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, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0048] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A manhole cover extraction device for communication engineering construction, characterized in that: It comprises a frame that can walk on the ground, the frame is provided with a lifting assembly for fixing the manhole cover (3), and the lifting assembly is drivingly connected with a driving assembly arranged on the frame; The lifting assembly comprises a lifting plate (1) slidably connected to the frame, and the lifting plate (1) is drivingly connected to the driving assembly; the bottom end of the lifting plate (1) is slidably connected to two symmetrically arranged lifting rods (2), and a plurality of clamping rods are circumferentially evenly spaced on the lifting rods (2), and the bottom ends of the clamping rods pass through the manhole cover (3) and are limitedly connected to the manhole cover (3); The clamping rod comprises a movable rod (4) movably connected to the lifting rod (2), and the movable rod (4) is transmission-connected to an active rod (5) movably connected to the lifting rod (2).

2. The manhole cover extraction device for communication engineering construction according to claim 1 is characterized in that: An adjusting screw sleeve (6) is threadedly connected to the lifting rod (2), and the adjusting screw sleeve (6) is rotatably connected to a movable ring (7) slidably connected to the lifting rod (2). A plurality of clearance grooves (8) are longitudinally opened on the side wall of the lifting rod (2), and the movable rod (4) and the active rod (5) are both arranged in the clearance grooves (8), and the top end of the active rod (5) is fixedly connected to the bottom end of the movable ring (7).

3. The manhole cover extraction device for communication engineering construction according to claim 2 is characterized in that: The movable rod (4) includes a first support rod (9) rotatably connected to the bottom end of the clearance groove (8); the other end of the first support rod (9) is connected to a second support rod (10); an end of the second support rod (10) away from the first support rod (9) extends into the clearance groove (8) and is transmission-connected to the bottom end of the active rod (5).

4. The manhole cover extraction device for communication engineering construction according to claim 2 is characterized in that: A return spring (11) is fixedly connected between the top end of the movable ring (7) and the top end of the inner cavity of the lifting rod (2).

5. The manhole cover extraction device for communication engineering construction according to claim 1 is characterized in that: The driving assembly comprises a driving motor (13) arranged on the frame, the output shaft of the driving motor (13) is drivingly connected to a driving rod (14), and the driving rod (14) is fixed to the frame through a plurality of supporting blocks (31); a plurality of lifting wheels (15) are arranged on the driving rod (14), a connecting rope (16) is wound around the lifting wheel (15), and the connecting rope (16) is drivingly connected to the lifting plate (1).

6. The manhole cover extraction device for communication engineering construction according to claim 5 is characterized in that: The support block (31) comprises a fixed block (17) fixedly mounted on the frame, a movable block (18) being interactively connected to the fixed block (17), a fixed bearing (19) being clamped and fixed between the fixed block (17) and the movable block (18), and the driving rod (14) being mounted on the fixed bearing (19).

7. The manhole cover extraction device for communication engineering construction according to claim 5 is characterized in that: The frame comprises a bottom plate (20), a plurality of support columns (21) are fixedly connected to the bottom plate (20), a top plate (22) is fixedly connected between the top ends of the plurality of support columns (21), the drive motor (13) and the support block (31) are fixedly mounted on the top plate (22); the connection rope (16) passes through the top plate (22) and is movably connected to the top plate (22).

8. The manhole cover extraction device for communication engineering construction according to claim 7, characterized in that: The bottom plate (20) is provided with a through hole (23), and the manhole cover (3) is lifted to the top of the bottom plate (20) through the through hole (23).

9. The manhole cover extraction device for communication engineering construction according to claim 8, characterized in that: A plurality of fixed shafts (24) are rotatably connected to the bottom plate (20), and the plurality of fixed shafts (24) are arranged around the through hole (23) at equal intervals; an elliptical clamping plate (25) is fixedly connected to the fixed shaft (24), and the clamping plate (25) is in position-limiting contact with the manhole cover (3).

10. The manhole cover extraction device for communication engineering construction according to claim 7, characterized in that: A plurality of universal wheels (26) are arranged on the bottom plate (20).

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