Cover lifting equipment for municipal construction

Abstract

The utility model discloses cover opening equipment for municipal construction, which belongs to the technical field of municipal construction and comprises a base plate, three equiangular supporting rods are rotatably mounted on the outer side of the bottom end of the base plate, an air cylinder is fixedly mounted in the middle of the base plate, three equiangular limiting rods are fixedly mounted at the bottom end of the base plate, and convex sliding grooves are formed in the inner sides of the supporting rods. And convex sliding blocks are slidably mounted in the convex sliding grooves, and hydraulic rods are rotatably mounted between the bottom ends of the limiting rods and the upper ends of the inner sides of the supporting rods. When the manhole cover is loosened and pulled out, the manhole cover moves upwards along with inertia and collides with the buffering ball at first, then the telescopic sleeve retracts to buffer the impact force of the manhole cover, meanwhile, the air pressure rod is shortened along with the movement of the convex sliding block along the convex sliding groove of the supporting rod, and the impact of the manhole cover is further buffered; and the cover lifting equipment is provided with the three supporting rods with the same angle, outward movement of the well cover can be effectively limited, and then the situation that the well cover moves upwards along with inertia and flies out at the moment when the cover is lifted out, and consequently smashing damage is caused is avoided.

Description

Technical Field

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

[0002] Municipal kiln shafts are usually vertical shafts, mainly used to facilitate inspection and maintenance between underground passages. They are widely used in many industries such as power transmission, heat transmission, water and gas supply, communication cables, rainwater and sewage discharge, etc. The main structure of the kiln shaft includes the kiln shaft body and the manhole cover buckled on the edge of the kiln shaft. The kiln shaft body connects two sections of underground passages respectively. The manhole cover is generally round or square, and there are generally two to four through holes on the manhole cover. Maintenance personnel can use the through holes to lift the manhole cover and enter the kiln shaft body for relevant inspection and maintenance work.

[0003] The rotating wheel rotates the lead screw, and then the sliding block threadedly connected thereto causes the moving seat to move up and down. The moving seat moves down so that the opening assembly passes through the cover hole of the manhole cover, and the pull rod is pulled to move the long column upward, thereby causing the two rotating rods on both sides to open, and the pull rod is fixed through the rotating groove, thereby achieving continuous opening of the rotating rod, and reversing the rotating wheel causes the moving seat to move upward, thereby causing the opening assembly to move and drive the manhole cover to move upward. The entire process does not require manual lifting, and is convenient and safe. After searching, the patent publication number CN112479116A discloses a patent for a municipal construction cover lifting device. The technical problem to be solved is that the manhole cover is heavy, which makes the workers If the worker is not careful when lifting the cover, the manhole cover may fall and cause a safety accident. The worker turns the wheel to rotate the screw, and then the moving seat moves up and down through the slider threaded with it. The moving seat moves down to allow the opening assembly to pass through the cover hole of the manhole cover, and the pull rod is pulled to move the long column upward, thereby allowing the two rotating rods on both sides to open. The pull rod is fixed through the rotating groove, thereby achieving continuous opening of the rotating rod, and the rotating wheel is reversed to move the moving seat upward, thereby allowing the opening assembly to move and drive the manhole cover to move upward. The whole process does not require manual lifting, which is convenient and safe; but there are still the following disadvantages that need to be solved: the manhole cover flies out due to inertia at the moment the cover is lifted, which can easily cause injuries. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a cover-lifting device for municipal construction.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A cover lifting equipment for municipal construction comprises a base plate, three support rods of equal angles are rotatably installed on the outer side of the bottom end of the base plate, a cylinder is fixedly installed in the middle of the base plate, three limit rods of equal angles are fixedly installed on the bottom end of the base plate, a convex sliding groove is provided on the inner side of the support rod, and a convex sliding block is slidably installed inside the convex sliding groove, a hydraulic rod is rotatably installed between the bottom end of the limit rod and the inner upper end of the support rod, a movable plate is fixedly connected to the bottom end of the cylinder, and a pressure plate is arranged at the bottom end of the movable plate, a vortex ring groove is provided in the middle of the pressure plate, three pneumatic rods of equal angles are fixedly installed on the outer side of the circumference of the pressure plate, and the ends of the pneumatic rods are rotatably connected to the outer side of the convex sliding block, a telescopic sleeve is fixedly sleeved on the outer side of the circumference of the fixed end of the pneumatic rod, and a buffer ball is fixedly installed on the bottom end of the telescopic sleeve.

[0007] Preferably, a transfer block is rotatably mounted on the bottom end of the support rod, and a moving wheel is fixedly mounted on the bottom end of the transfer block, and an adjusting rod is rotatably mounted at the connection between the support rod and the transfer block.

[0008] Preferably, a plurality of triangle plates with equal angles are fixedly installed between the outer side of the circumference of the movable bottom end of the cylinder and the outer wall of the top end of the movable plate.

[0009] Preferably, a plurality of pillars with equal angles are fixedly installed on the outer side between the bottom end of the movable plate and the top end of the pressure plate.

[0010] Preferably, a plurality of hook cover assemblies are arranged inside the vortex ring groove, and the hook cover assembly comprises a pull rod, the top end of the pull rod is fixedly connected to a limiting column, and the bottom end of the pull rod is rotatably mounted with a hook.

[0011] Preferably, the diameter of the top end of the limiting column is larger than the width of the vortex ring groove, a thread is provided at the lower end of the circumferential outer wall of the limiting column, and a positioning sleeve is rotatably installed at the lower end of the circumference of the limiting column.

[0012] Preferably, a return spring is arranged inside the fixed end of the telescopic sleeve.

[0013] The beneficial effects of the utility model are:

[0014] The utility model discloses a cover-lifting device for municipal construction. The utility model first starts the hydraulic rod to tilt the support rod to support the base plate, and fixes the angle of the adapter block and the moving wheel by the adjusting rod, and then places the cover-lifting device on the top of the manhole cover, and then extends the cylinder to move the moving plate and the pressure plate downward, and moves a plurality of hook cover assemblies to the top of the through hole of the manhole cover, and puts the hook into the bottom of the manhole cover, and the cylinder works and shortens again to pull the cover out. When the manhole cover is loosened and pulled out, the manhole cover moves upward due to inertia, first hits the buffer ball, and then the telescopic sleeve retracts to buffer the impact of the manhole cover, and at the same time, the pneumatic rod shortens as the convex sliding block moves along the convex sliding groove of the support rod, so as to further buffer the impact of the manhole cover, and the cover-lifting device is provided with three support rods with equal angles, which can effectively limit the outward movement of the manhole cover, and thus avoid the hazard of being smashed and injured by the manhole cover flying out due to the inertia at the moment of lifting and pulling out.

[0015] The utility model proposes a cover lifting device for municipal construction, in which a plurality of hook cover assemblies are arranged inside a vortex ring groove, and the hook cover assembly includes a pull rod, a limit column and a hook. When the number of hook cover assemblies needs to be adjusted according to the manhole of the manhole cover, the hook cover assembly can be moved along the vortex ring groove. When the position is determined, the hook cover assembly can be fixed at the upper and lower ends of a certain position of the vortex ring groove by rotating the positioning sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a municipal construction lifting device proposed by the utility model;

[0017] Figure 2 This is a left-side structural schematic diagram of a cover-lifting device for municipal construction proposed by the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of a cover-lifting device for municipal construction proposed by the utility model from a bottom up view;

[0019] Figure 4 The utility model is a schematic diagram of the upward structure of a pull rod of a cover-lifting device for municipal construction proposed by the utility model.

[0020] In the figure: 1 base plate, 2 cylinder, 3 support rod, 4 limit rod, 5 hydraulic rod, 6 moving plate, 7 pillar, 8 pressure plate, 9 pneumatic rod, 10 telescopic sleeve, 11 buffer ball, 12 pull rod, 13 adapter block, 14 moving wheel, 15 triangular plate, 16 convex slide groove, 17 convex slider, 18 vortex ring groove, 19 hook, 20 limit column, 21 positioning sleeve. DETAILED DESCRIPTION

[0021] Reference Figure 1-4A cover lifting equipment for municipal construction comprises a base plate 1, three support rods 3 with equal angles are rotatably installed on the outer side of the bottom end of the base plate 1, a cylinder 2 is fixedly installed in the middle of the base plate 1, three limit rods 4 with equal angles are fixedly installed on the bottom end of the base plate 1, a convex slide groove 16 is provided on the inner side of the support rod 3, and a convex slider 17 is slidably installed inside the convex slide groove 16, a hydraulic rod 5 is rotatably installed between the bottom end of the limit rod 4 and the inner upper end of the support rod 3, a movable plate 6 is fixedly connected to the bottom end of the cylinder 2, and a pressure plate 8 is arranged at the bottom end of the movable plate 6, a vortex ring groove 18 is provided in the middle of the pressure plate 8, three pneumatic rods 9 with equal angles are fixedly installed on the outer side of the circumference of the pressure plate 8, and the end of the pneumatic rod 9 is rotatably connected to the outer side of the convex slider 17, a telescopic sleeve 10 is fixedly sleeved on the outer side of the fixed end of the pneumatic rod 9, and a buffer ball 11 is fixedly installed on the bottom end of the telescopic sleeve 10.

[0022] In the utility model, a transfer block 13 is rotatably mounted on the bottom end of the support rod 3, and a moving wheel 14 is fixedly mounted on the bottom end of the transfer block 13, and an adjusting rod is rotatably mounted at the connection between the support rod 3 and the transfer block 13;

[0023] A plurality of triangle plates 15 with equal angles are fixedly installed between the outer circumference of the movable bottom end of the cylinder 2 and the outer wall of the top end of the movable plate 6, so as to further increase the stable connection of the movable plate 6;

[0024] A plurality of pillars 7 with equal angles are fixedly installed on the outer side between the bottom end of the moving plate 6 and the top end of the pressure plate 8 to provide space for adjusting the position of the hook cover assembly;

[0025] A plurality of hook cover assemblies are arranged inside the vortex ring groove 18, and the hook cover assemblies include a pull rod 12, a limit column 20 is fixedly connected to the top end of the pull rod 12, and a hook 19 is rotatably installed at the bottom end of the pull rod 12;

[0026] The diameter of the top of the limit column 20 is larger than the width of the vortex ring groove 18, and a thread is provided at the middle and lower end of the circumferential outer wall of the limit column 20, and a positioning sleeve 21 is rotatably installed at the circumferential lower end of the limit column 20;

[0027] A return spring is arranged inside the fixed end of the telescopic sleeve 10 .

[0028] Working principle: first start the hydraulic rod 5 to tilt the support rod 3 to support the base plate 1, and fix the angle of the adapter block 13 and the moving wheel 14 through the adjusting rod, and then place the cover lifting device on the top of the manhole cover, and then extend the cylinder 3 to make the moving plate 6 and the pressure plate 8 move down, and move several hook cover assemblies to the top of the manhole cover through hole, and put the hook 19 into the bottom of the manhole cover, and the cylinder 3 works and shortens again to pull the cover. When the manhole cover is loose and pulled out, the manhole cover moves upward with inertia, first hits the buffer ball 11, and then the telescopic sleeve 10 retracts to buffer the impact of the manhole cover. At the same time, the pneumatic rod 9 shortens as the convex slider 17 moves along the convex slide groove 16 of the support rod 3, further buffering the impact of the manhole cover, and the cover lifting device is provided with three support rods 3 at equal angles, which can effectively limit the outward movement of the manhole cover, thereby avoiding the manhole cover flying out with inertia at the moment of lifting and pulling out. The hazard caused by the manhole cover flying out with inertia.

[0029] A plurality of hook cover assemblies are arranged inside the vortex ring groove 18, and the hook cover assembly includes a pull rod 12, a limit column 20 and a hook 19. When it is necessary to adjust the number of hook cover assemblies according to the manhole of the manhole cover, the hook cover assembly can be moved along the vortex ring groove 18. After the position is determined, the hook cover assembly can be fixed at the upper and lower ends of a certain position of the vortex ring groove 18 by rotating the positioning sleeve 21.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cover-lifting device for municipal construction, comprising a base plate (1), wherein three support rods (3) are rotatably mounted on the outer side of the bottom end of the base plate (1) at equal angles, a cylinder (2) is fixedly mounted in the middle of the base plate (1), and three limit rods (4) are fixedly mounted at equal angles at the bottom end of the base plate (1), characterized in that: A convex slide groove (16) is provided on the inner side of the support rod (3), and a convex slider (17) is slidably installed inside the convex slide groove (16); a hydraulic rod (5) is rotatably installed between the bottom end of the limit rod (4) and the inner upper end of the support rod (3); a movable plate (6) is fixedly connected to the bottom end of the cylinder (2), and a pressure plate (8) is provided at the bottom end of the movable plate (6); a vortex ring groove (18) is provided in the middle of the pressure plate (8); three pneumatic rods (9) with equal angles are fixedly installed on the outer side of the circumference of the pressure plate (8), and the ends of the pneumatic rods (9) are rotatably connected to the outer side of the convex slider (17); a telescopic sleeve (10) is fixedly sleeved on the outer side of the circumference of the fixed end of the pneumatic rod (9), and a buffer ball (11) is fixedly installed on the bottom end of the telescopic sleeve (10).

2. A municipal construction lifting device according to claim 1, characterized in that: A transfer block (13) is rotatably mounted on the bottom end of the support rod (3), and a moving wheel (14) is fixedly mounted on the bottom end of the transfer block (13). An adjusting rod is rotatably mounted at the connection between the support rod (3) and the transfer block (13).

3. The municipal construction lifting equipment according to claim 1, characterized in that: A plurality of triangle plates (15) with equal angles are fixedly mounted between the outer circumference of the movable bottom end of the cylinder (2) and the outer wall of the top end of the movable plate (6).

4. A municipal construction lifting device according to claim 3, characterized in that: A plurality of pillars (7) with equal angles are fixedly mounted on the outer side between the bottom end of the movable plate (6) and the top end of the pressure plate (8).

5. The municipal construction lifting equipment according to claim 1, characterized in that: A plurality of hook cover assemblies are arranged inside the vortex ring groove (18), and the hook cover assembly comprises a pull rod (12), the top end of the pull rod (12) is fixedly connected to a limiting column (20), and the bottom end of the pull rod (12) is rotatably mounted with a hook (19).

6. A municipal construction lifting device according to claim 5, characterized in that: The diameter of the top end of the limiting column (20) is greater than the width of the vortex ring groove (18), a thread is provided at the middle and lower end of the circumferential outer wall of the limiting column (20), and a positioning sleeve (21) is rotatably mounted at the circumferential lower end of the limiting column (20).

7. The municipal construction lifting equipment according to claim 1, characterized in that: A return spring is arranged inside the fixed end of the telescopic sleeve (10).

Images