Well lid lifting device for municipal construction

Abstract

The utility model discloses a manhole cover hoisting device for municipal construction, which relates to the technical field of municipal construction and comprises a fixing ring, screw rods which are distributed at equal intervals and driven to rotate by a turntable penetrate through the side wall of the fixing ring in a threaded manner, and one end, positioned outside the fixing ring, of each screw rod is rotatably connected with an adjusting plate; according to the well lid lifting device, the well lid is preliminarily lifted through cooperation of the sling and the clamping block, the first lead screw is driven by the motor to rotate, the lifting plate in threaded connection with the first lead screw in a sleeving mode descends, the limiting pressing plate is driven by the lifting rod to abut against the top end of the well lid, and the well lid is kept stable under cooperation of lifting force of the sling and pressing force of the limiting pressing plate; after the well lid is lifted, the sliding seat is driven by the translation driving mechanism to transversely move left and right at the top end of the portal frame, so that the lifting plate and the well lid lifted below the lifting plate are driven to move out of the position above a well mouth, and the well lid is lifted; therefore, the well lid lifting device for municipal construction has the translation lifting function.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal construction, in particular to a manhole cover lifting device used for municipal construction. Background Art

[0002] Municipal construction refers to a series of engineering activities in urban infrastructure construction, which involves the construction and maintenance of urban public life facilities, including but not limited to urban roads, bridges, tunnels, rail transit, water supply and drainage systems, landscaping, environmental sanitation, lighting facilities, heat supply, gas supply, public transportation, flood control, earthquake resistance and other projects. During the municipal construction process, manhole covers often need to be replaced or repaired, and replacement or maintenance generally requires the manhole covers to be lifted by the corresponding lifting device.

[0003] For example, the utility model patent with application number 202221496788.6 discloses a manhole cover lifting device for municipal construction, including a gantry-type hanger and a lifting base with adjustable height below the gantry-type hanger, a transmission wing plate is centrally constructed on one side of the lifting base, and a groove for installing a screw is opened on the lifting base, a lifting component assembly cooperating with the screw drive is installed in the groove, one end of the groove extends to the outside, and the end of the groove is closed by a removable plug.

[0004] Based on the findings in the prior art, the lifting structure of the existing manhole cover lifting device for municipal construction is relatively simple, and the stability of the manhole cover during the lifting process cannot be guaranteed. The safety is not high, the use is inconvenient, and the function is single. The manhole cover only has the lifting function during the lifting process, but not the translation lifting function. As a result, the manhole cover is not convenient to move out from above the wellhead after being lifted, and is therefore not easy to remove, and is not practical. Therefore, the utility model proposes a manhole cover lifting device for municipal construction to solve the problems existing in the prior art. Utility Model Content

[0005] In view of the above problems, the purpose of the utility model is to propose a manhole cover lifting device for municipal construction, so as to solve the problem that the existing manhole cover lifting device for municipal construction cannot ensure the stability of the manhole cover during the lifting process, is not safe, and does not have a translational lifting function, resulting in the manhole cover being inconvenient to move out of the top of the pit after lifting.

[0006] In order to achieve the purpose of the utility model, the utility model is implemented through the following technical solutions: a manhole cover lifting device for municipal construction, including a gantry, a sliding seat is slidingly provided at the top of the gantry and is driven to move by a translation drive mechanism, a hanging plate is fixed to the bottom end of the sliding seat through a hydraulic cylinder, both sides of the bottom end of the hanging plate are provided with hanging blocks driven to move by a spacing adjustment mechanism, the bottom end of the hanging block is suspended with a clamping block through a sling, a driving box is fixed to the bottom end of the hanging plate, a first screw rod is provided inside the driving box and is driven to rotate by a motor, a lifting plate is threadedly sleeved on the first screw rod, a hanging rod is symmetrically fixed to the bottom end of the lifting plate, and the bottom end of the hanging rod slides through the bottom end of the driving box and is fixed with a limiting pressure plate.

[0007] A further improvement is that the limit pressure plate includes a top plate fixed to the bottom end of the suspension rod and a buffer plate located below the top plate, and a limit spring is fixed equidistantly between the top plate and the buffer plate.

[0008] A further improvement is that the spacing adjustment mechanism includes a cavity opened on the left and right sides of the hanging plate and a second screw rod rotatably connected to the cavity and driven to rotate by a handle, a threaded block is threadedly sleeved on the second screw rod, and the top end of the hanging block slides through the cavity and is fixed to the bottom end of the threaded block.

[0009] A further improvement is that: limiting rods are fixed on both sides of the bottom end of the sliding seat, and a limiting tube is sleeved on the outside of the limiting rods, and the bottom end of the limiting tube is fixed to the top end of the hanging plate.

[0010] A further improvement is that the translation drive mechanism includes a winder symmetrically fixed on both sides of the top of the gantry and a pull ring symmetrically fixed on both sides of the top of the sliding seat. A steel wire rope is wound around the winding wheel at the output end of the winder, and the end of the steel wire rope away from the winder is fixedly connected to the pull ring.

[0011] A further improvement is that the sliding seat includes an upper slide plate and a lower slide plate, a slide block is fixed between the upper slide plate and the lower slide plate, a through groove adapted to the slide block is opened at the top of the gantry, and supporting rollers are symmetrically fixed to the bottom end of the upper slide plate.

[0012] A further improvement is that support rods are fixed on both sides of the bottom end of the gantry, a bottom plate is fixed to the bottom end of the support rods, and reinforcing rods are fixed between the support rods, the gantry and the bottom plate.

[0013] The beneficial effects of the utility model are as follows: the utility model includes a gantry, and the manhole cover is preliminarily lifted by the cooperation of the sling and the clamping block, and the first screw rod is driven to rotate by the motor, so that the lifting plate threaded on the first screw rod is lowered in the driving box, and the limiting pressure plate is driven by the sling to press against the top of the manhole cover, so that the manhole cover remains stable under the cooperation of the lifting force of the sling and the pressing force of the limiting pressure plate, thereby ensuring the stability during the lifting process, improving safety, and being easy to use. After the manhole cover is lifted, the sliding seat is driven by the translation drive mechanism to move horizontally left and right at the top of the gantry, so as to drive the lifting plate and the manhole cover lifted thereunder to move out above the wellhead, so that the manhole cover lifting device used for municipal construction has a translation lifting function, so that the manhole cover is easy to remove after lifting, and has high practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front sectional view of the utility model;

[0015] Figure 2 It is a front cross-sectional view of the utility model;

[0016] Figure 3 This utility model Figure 2 A in the enlarged view;

[0017] Figure 4 It is a side sectional view of the utility model;

[0018] Figure 5 It is a front view of the limiting pressing plate of the utility model.

[0019] Wherein: 1. gantry; 2. sliding seat; 3. hydraulic cylinder; 4. hanging plate; 5. hanging block; 6. lifting rope; 7. clamping block; 8. driving box; 9. first screw rod; 10. lifting plate; 11. hanging rod; 12. limiting pressure plate; 13. cavity; 14. turning handle; 15. second screw rod; 16. threaded block; 17. limiting rod; 18. limiting tube; 19. reeling machine; 20. pull ring; 21. wire rope; 22. support rod; 23. bottom plate; 24. reinforcing rod; 201. upper slide plate; 202. lower slide plate; 203. slider; 204. supporting roller; 1201. top plate; 1202. buffer plate; 1203. limiting spring. DETAILED DESCRIPTION

[0020] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with an embodiment. The embodiment is only used to explain the present invention and does not constitute a limitation on the protection scope of the present invention.

[0021] according to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, the present embodiment provides a manhole cover lifting device for municipal construction, comprising a horizontally arranged gantry 1 and a sliding seat 2 slidably arranged at the top of the gantry 1, and the sliding seat 2 is driven by a translation driving mechanism and can be laterally displaced left and right at the top of the gantry 1, a hydraulic cylinder 3 is fixed to the bottom end of the sliding seat 2 by bolts, and a hanging plate 4 is fixed to the bottom end of the hydraulic cylinder 3 by bolts, and the sliding seat 2 is driven by the translation driving mechanism to be laterally displaced left and right at the top of the gantry 1 to drive the hanging plate 4 and the manhole cover suspended thereunder to move out above the wellhead, so that the manhole cover lifting device for municipal construction has a translational lifting function, and hanging blocks 5 are arranged on both sides of the left and right sides of the bottom end of the hanging plate 4, and the two groups of hanging blocks 5 are driven to move by a spacing adjustment mechanism in the hanging plate 4, and can be displaced in opposite directions or in opposite directions, so as to adapt to manhole covers of different specifications and sizes, and a sling 6 is welded and fixed to the bottom end of the sling block 5, and a clamping block is fixed to the bottom end of the sling 6 by bolts 7. A hollow driving box 8 is fixed by bolts in the middle position at the bottom end of the hanging plate 4. A motor is fixed by bolts at the bottom end of the driving box 8, and the output end of the motor passes through the bearing to the inside of the driving box 8 and is fixed with a first screw rod 9. The first screw rod 9 is driven to rotate by the motor at the bottom end of the driving box 8. A lifting plate 10 located inside the driving box 8 is threadedly sleeved on the first screw rod 9. A hanging rod 11 sliding through the bottom end of the driving box 8 is symmetrically fixed at the bottom end of the lifting plate 10 by bolts. The bottom end of the hanging rod 11 is located outside the driving box 8 and is fixed with a limiting pressure plate 12 by bolts. The manhole cover is initially lifted by the cooperation of the sling 6 and the block 7, and the first screw rod 9 is driven by the motor to rotate, so that the lifting plate 10 threadedly sleeved on the first screw rod 9 descends in the driving box 8, and the limiting pressure plate 12 is driven by the hanging rod 11 to press against the top of the manhole cover, so that the manhole cover remains stable under the cooperation of the lifting force of the sling 6 and the pressing force of the limiting pressure plate 12.

[0022] The limiting pressure plate 12 includes a top plate 1201 and a buffer plate 1202, wherein the top plate 1201 is fixed to the bottom end of the suspension rod 11 by bolts, and the buffer plate 1202 is located directly below the top plate 1201. Limiting springs 1203 are equidistantly fixed to the bottom end of the top plate 1201 and are fixedly connected to the buffer plate 1202 through the limiting springs 1203. The limiting springs 1203 act as a buffer between the top plate 1201 and the buffer plate 1202 to avoid excessive load on the sling 6 due to excessive tightening of the manhole cover by the limiting pressure plate 12.

[0023] The spacing adjustment mechanism includes a cavity 13 and a second screw rod 15, wherein the cavity 13 is provided with two groups and is symmetrically opened on the left and right sides of the hanging plate 4, the second screw rod 15 is provided with two groups and is rotatably connected to the two groups of cavities 13 through bearings, the opposite ends of the two groups of second screw rods 15 are passed through the bearing to the outside of the hanging plate 4 and are fixed with a turning handle 14, the second screw rod 15 is driven to rotate by the turning handle 14, a threaded block 16 is threadedly sleeved on the second screw rod 15, and the threaded block 16 is slidably arranged in the cavity 13, the top of the hanging block 5 slides through the cavity 13 and is fixed to the bottom end of the threaded block 16 by bolts, and a through groove adapted to the hanging block 5 is opened at the bottom end of the hanging plate 4 for the hanging block 5 to slide through, and the second screw rod 15 is driven to rotate by the turning handle 14, so that the threaded block 16 threadedly sleeved on the second screw rod 15 drives the hanging block 5 to move, thereby realizing the spacing adjustment of the two groups of hanging blocks 5, and then the spacing between the two groups of slings 6 can be suitable for lifting manhole covers of different specifications and sizes.

[0024] Limit rods 17 are fixed on both sides of the bottom end of the sliding seat 2 by bolts, and a limit tube 18 is sleeved on the outside of the limit rod 17. The bottom end of the limit tube 18 is fixed to the top of the hanging plate 4 by bolts. The cooperation of the limit rod 17 and the limit tube 18 plays a certain limiting role between the sliding seat 2 and the hanging plate 4, making the hanging plate 4 more stable during the lifting process.

[0025] The translation drive mechanism includes a winder 19 and a pull ring 20, wherein the winder 19 is provided with two groups and is symmetrically fixed to the left and right sides of the top of the gantry 1 by bolts, and the pull ring 20 is provided with two groups and is welded and fixed to the left and right sides of the top of the sliding seat 2. A steel wire rope 21 is wound around the winding wheel at the output end of the winder 19, and the end of the steel wire rope 21 away from the winder 19 is fixedly connected to the pull ring 20. The two groups of steel wire ropes 21 are unwound and reeled respectively by the two groups of winders 19, so as to cause the sliding seat 2 to slide and move at the top of the gantry 1 through the pull ring 20.

[0026] The sliding seat 2 includes an upper slide plate 201 located above the gantry 1 and a lower slide plate 202 located at the bottom of the gantry 1. A slider 203 is fixed to the bottom of the upper slide plate 201 by bolts. The slider 203 slides through the gantry 1 and is fixedly connected to the bottom of the lower slide plate 202. A through groove adapted to the slider 203 is provided at the top of the gantry 1 for the sliding of the sliding seat 2. Support rollers 204 are symmetrically fixed to the bottom of the upper slide plate 201. The bottom end of the support rollers 204 contacts the top of the gantry 1, thereby providing auxiliary support for the sliding seat 2 and making the sliding displacement of the sliding seat 2 smoother.

[0027] Support rods 22 are fixed to the left and right sides of the bottom end of the gantry 1 by bolts, and a base plate 23 is fixed to the bottom end of the support rods 22 by bolts. Obliquely arranged reinforcing rods 24 are fixed between the support rods 22, the gantry 1 and the base plate 23. The support rods 22 provide support for the gantry 1, and the reinforcing rods 24 improve the structural strength between the support rods 22, the gantry 1 and the base plate 23.

[0028] When it is necessary to lift the manhole cover for replacement or maintenance during municipal construction, the gantry 1 is first moved to the top of the manhole cover to be lifted. In the initial state, the hanging plate 4 is located in the middle position below the gantry 1 and is directly above the manhole cover to be lifted. Then the hydraulic cylinder 3 is started to drive the hanging plate 4 to descend. During the descent, the block 7 is placed vertically and passes through the hole in the manhole cover. After the block 7 passes through the manhole cover, it naturally returns to a horizontal state without being affected by external forces. Then the hydraulic cylinder 3 is started to drive the hanging plate 4 to rise until the sling 6 is pulled to drive the horizontal block 7 to press against the bottom of the manhole cover. Then The starting motor drives the first screw rod 9 to rotate, so that the lifting plate 10 threaded on the first screw rod 9 descends in the driving box 8, and drives the limiting pressure plate 12 to descend through the suspension rod 11 until the limiting pressure plate 12 is against the top of the manhole cover, and then continues to start the hydraulic cylinder 3 to drive the hanging plate 4 to rise, so as to use the sling 6 to drive the manhole cover to rise and detach from the wellhead, and then use the translation drive mechanism to drive the sliding seat 2 to move horizontally left and right at the top of the gantry 1, so as to drive the hanging plate 4 and the manhole cover suspended thereunder to move out of the wellhead, so that the manhole cover can be removed and placed on the ground next to the wellhead.

[0029] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A manhole cover lifting device for municipal construction, comprising a gantry (1), characterized in that: The top of the gantry (1) is provided with a sliding seat (2) driven to move by a translation driving mechanism, the bottom end of the sliding seat (2) is fixed with a hanging plate (4) through a hydraulic cylinder (3), both sides of the bottom end of the hanging plate (4) are provided with hanging blocks (5) driven to move by a spacing adjustment mechanism, the bottom end of the hanging block (5) is connected with a clamping block (7) through a sling (6), the bottom end of the hanging plate (4) is fixed with a driving box (8), the inside of the driving box (8) is provided with a first screw rod (9) driven to rotate by a motor, the first screw rod (9) is threadedly sleeved with a lifting plate (10), the bottom end of the lifting plate (10) is symmetrically fixed with a hanging rod (11), the bottom end of the hanging rod (11) slides through the bottom end of the driving box (8) and is fixed with a limiting pressure plate (12).

2. A manhole cover lifting device for municipal construction according to claim 1, characterized in that: The limit pressure plate (12) comprises a top plate (1201) fixed to the bottom end of the suspension rod (11) and a buffer plate (1202) located below the top plate (1201), and a limit spring (1203) is equidistantly fixed between the top plate (1201) and the buffer plate (1202).

3. The manhole cover lifting device for municipal construction according to claim 1 is characterized in that: The spacing adjustment mechanism comprises cavities (13) opened on the left and right sides of the hanging plate (4) and a second screw rod (15) rotatably connected to the cavity (13) and driven to rotate by a handle (14); a threaded block (16) is threadedly sleeved on the second screw rod (15); the top end of the hanging block (5) slides through the cavity (13) and is fixed to the bottom end of the threaded block (16).

4. A manhole cover lifting device for municipal construction according to claim 1, characterized in that: Limit rods (17) are fixed on both sides of the bottom end of the sliding seat (2), and a limit tube (18) is sleeved on the outside of the limit rod (17), and the bottom end of the limit tube (18) is fixed to the top end of the hanging plate (4).

5. The manhole cover lifting device for municipal construction according to claim 1 is characterized in that: The translation drive mechanism comprises a reel (19) symmetrically fixed to both sides of the top of the gantry (1) and a pull ring (20) symmetrically fixed to both sides of the top of the sliding seat (2); a steel wire rope (21) is wound around a winding wheel at the output end of the reel (19); and one end of the steel wire rope (21) away from the reel (19) is fixedly connected to the pull ring (20).

6. A manhole cover lifting device for municipal construction according to claim 1, characterized in that: The sliding seat (2) comprises an upper slide plate (201) and a lower slide plate (202), a sliding block (203) is fixed between the upper slide plate (201) and the lower slide plate (202), a through groove adapted to the sliding block (203) is provided at the top end of the gantry (1), and supporting rollers (204) are symmetrically fixed at the bottom end of the upper slide plate (201).

7. A manhole cover lifting device for municipal construction according to claim 1, characterized in that: Support rods (22) are fixed on both sides of the bottom end of the gantry (1), a bottom plate (23) is fixed on the bottom end of the support rods (22), and reinforcing rods (24) are fixed between the support rods (22), the gantry (1) and the bottom plate (23).

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