Municipal road white-to-black well lid lifting device

Abstract

The utility model relates to the technical field of municipal roads, in particular to a municipal road white-to-black well lid lifting device which comprises a frame body, a plurality of sets of wheels are arranged on the surface of the frame body, a lifting mechanism is arranged on the surface of the frame body and comprises a movable plate connected with the inner wall of the frame body in a sliding mode, and two air cylinders are fixedly connected to the surface of the frame body. The lifting mechanism is arranged, the rod body penetrates through the water inlet hole in the surface of the well lid, then the pump body, the air inlet pipe, the air cavity and the sliding cavity are matched, the sealing protruding block is ejected out, and therefore when the air cylinder moving plate moves upwards, the sealing protruding block can be pushed out, and the sealing protruding block can be pushed out. The well lid can be lifted, well lid lifting and lowering can be rapidly completed, the construction efficiency is remarkably improved, the labor intensity is greatly relieved, and manual operation errors are reduced.

Description

Technical Field

[0001] This utility model relates to the field of municipal road technology, and in particular to a lifting device for manhole covers used in the conversion of white to black manhole covers on municipal roads. Background Technology

[0002] The "white-to-black" road renovation project in municipal roads refers to the transformation of the original cement concrete pavement (which is grayish-white and commonly known as "white road") into asphalt concrete pavement (which is black and commonly known as "black road"). During the white-to-black renovation process, the pavement changes from a thin cement concrete layer to a thicker asphalt concrete structure, increasing the overall thickness of the pavement. To ensure that the manhole covers are flush with the new pavement and to maintain the smoothness of the road, the manhole covers need to be disassembled and reinstalled, and their height needs to be increased.

[0003] In our daily work, we have found that the current common practice for manhole cover dismantling and lifting is to lift the manhole cover manually and then move it away. In this mode of operation, the construction workers need to rely on their own strength, which consumes a lot of physical strength. Moreover, because the manhole cover itself is heavy, the operation is extremely difficult. At the same time, it is difficult to accurately control the lifting force and the direction of movement by manual operation, which can easily cause the manhole cover to shake or bump. This not only affects the construction efficiency but also poses a significant safety risk. Utility Model Content

[0004] The purpose of this utility model is to solve the problem of inconvenient operation caused by manually lifting manhole covers in the existing technology, and to propose a manhole cover lifting device for the transformation of white roads into black roads.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a lifting device for municipal road white-to-black manhole covers, comprising a frame, the surface of which is provided with multiple sets of wheels, a lifting mechanism on the surface of which includes a movable plate slidably connected to the inner wall of the frame, two cylinders fixedly connected to the surface of the frame, the output ends of the cylinders passing through the frame and fixedly connected to the surface of the movable plate, a rectangular sleeve fixedly connected to the surface of the movable plate, two slides slidably connected to the inner wall of the rectangular sleeve, a rod fixedly connected to the surface of the slides, an air cavity and multiple slide cavities opened on the inner wall of the rod, the air cavity communicating with the multiple slide cavities, a sealing protrusion slidably connected to the inner wall of the slide cavities, a pump body fixedly connected to the surface of the movable plate, an air inlet pipe fixedly connected to the output end of the pump body, the other end of the air inlet pipe fixedly connected to the rod body and communicating with the air cavity, an adjustment part provided between the rectangular sleeve and the slides, through the above components, since manhole covers usually have water inlet holes such as... Figure 5As shown, during lifting, the position of the rod is adjusted by the adjusting part, and the cylinder drives the moving plate to move, so that the rod is inserted into the water inlet hole of the manhole cover. After being inserted to a certain position, the pump delivers air, and the air enters the air chamber and the sliding chamber, pushing the sealing protrusion to move, so that the sealing protrusion abuts against the inner wall of the manhole cover. The cylinder drives the moving plate to move upward, and the lifting operation can be performed.

[0006] Preferably, the surface of the rod body is provided with a threaded groove, and a positioning ring is threadedly connected to the threaded groove on the surface of the rod body. Through the above-mentioned components, the position of the positioning ring can be adjusted according to the thickness of the manhole cover. The positioning ring can play a positioning role, and at the same time, the positioning ring, together with the sealing protrusion, can clamp the manhole cover and improve stability.

[0007] Preferably, the air intake pipe includes a pipe body and two telescopic tubes, the two telescopic tubes being fixed to the surface of the pipe body.

[0008] Preferably, the sealing protrusion is T-shaped.

[0009] Preferably, the adjusting part includes a transmission screw rotatably connected to the inner wall of the rectangular sleeve. The transmission screw is threadedly connected to the inner wall of the slide. A motor is fixedly connected to one side surface of the rectangular sleeve. The output end of the motor is fixedly connected to one end of the transmission screw. By using the above components, when the motor is turned on, the motor can drive the transmission screw to rotate. The transmission screw controls the slide and the rod to move, and can be adjusted according to the position of the water inlet hole of the well cover.

[0010] Preferably, the diameter of the rod is smaller than the diameter of the water inlet hole in the well cover.

[0011] Preferably, a handle is fixedly connected to one side surface of the frame. The handle is U-shaped. Through the above-mentioned component, the frame and the raised manhole cover can be moved by the handle, which improves ease of use.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, by setting up a lifting mechanism, the rod passes through the water inlet hole on the surface of the manhole cover, and then the pump body, air inlet pipe, air chamber and sliding chamber cooperate to push out the sealing protrusion. When the cylinder moving plate moves up, the manhole cover can be lifted up, and the lifting and lowering of the manhole cover can be completed quickly, which significantly improves construction efficiency, greatly reduces labor intensity and reduces manual operation error.

[0014] 2. In this utility model, by setting an adjustment part, the motor and transmission screw can control the movement of the slide and rod in the rectangular sleeve, adapting to the position of the water inlet of various manhole covers and improving flexibility.

[0015] 3. In this utility model, the position of the positioning ring can be adjusted according to the thickness of the manhole cover. The positioning ring can perform preliminary positioning, and at the same time, it can clamp the manhole cover with the sealing protrusion to improve the stability effect during lifting. Attached Figure Description

[0016] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a lifting device for converting white manhole covers to black ones on municipal roads;

[0017] Figure 2 This utility model provides a side view structural diagram of a lifting device for converting white manhole covers to black ones on municipal roads;

[0018] Figure 3 This utility model provides a schematic diagram of the lifting mechanism of a municipal road white-to-black manhole cover lifting device;

[0019] Figure 4 This utility model provides a cross-sectional structural diagram of the lifting mechanism of a municipal road white-to-black manhole cover lifting device;

[0020] Figure 5 This is a schematic diagram of a manhole cover structure.

[0021] Legend:

[0022] 1. Frame; 2. Wheels; 3. Lifting mechanism; 31. Cylinder; 32. Moving plate; 33. Rod; 34. Handle; 35. Adjustment part; 351. Motor; 352. Transmission screw; 36. Threaded groove; 37. Positioning ring; 38. Pump body; 39. Air inlet pipe; 391. Pipe body; 392. Telescopic pipe; 310. Rectangular sleeve; 311. Slide; 312. Sealing protrusion; 313. Air chamber; 314. Slide chamber. Detailed Implementation

[0023] Please see Figures 1-5 This utility model provides a technical solution: a lifting device for manhole covers in the transformation of white roads into black ones, including a frame 1, with multiple sets of wheels 2 on the surface of the frame 1, and a lifting mechanism 3 on the surface of the frame 1.

[0024] Specifically, the lifting mechanism 3 includes a movable plate 32 that is slidably connected to the inner wall of the frame 1. Two cylinders 31 are fixedly connected to the surface of the frame 1. The output end of the cylinders 31 passes through the frame 1 and is fixedly connected to the surface of the movable plate 32. A rectangular sleeve 310 is fixedly connected to the surface of the movable plate 32. Two slides 311 are slidably connected to the inner wall of the rectangular sleeve 310. A rod 33 is fixedly connected to the surface of the slides 311. An air chamber 313 and multiple slide chambers 314 are opened on the inner wall of the rod 33. The air chamber 313 is connected to the multiple slide chambers 314. A sealing protrusion 312 is slidably connected to the inner wall of the slide chamber 314. A pump body 38 is fixedly connected to the surface of the movable plate 32. An air inlet pipe 39 is fixedly connected to the output end of the pump body 38. The other end of the air inlet pipe 39 is fixedly connected to the rod body 33 and is connected to the air chamber 313. An adjustment part 35 is provided between the rectangular sleeve 310 and the slides 311.

[0025] In this embodiment: since water inlet holes are usually provided on the manhole cover, such as... Figure 5 As shown, during lifting, the position of the rod 33 is adjusted by the adjusting part 35, and the cylinder 31 drives the moving plate 32 to move, so that the rod 33 is inserted into the water inlet hole of the well cover. After being inserted to a certain position, the pump body 38 delivers air, and the air enters the air chamber 313 and the sliding chamber 314, pushing the sealing protrusion 312 to move, so that the sealing protrusion 312 abuts against the inner wall of the well cover. The cylinder 31 drives the moving plate 32 to move upward, and the lifting operation can be performed.

[0026] Specifically, a threaded groove 36 is provided on the surface of the rod 33, and a positioning ring 37 is threadedly connected to the threaded groove 36 on the surface of the rod 33.

[0027] In this embodiment, the position of the positioning ring 37 can be adjusted according to the thickness of the manhole cover. The positioning ring 37 can play a positioning role. At the same time, the positioning ring 37, together with the sealing protrusion 312, can clamp the manhole cover and improve stability.

[0028] Specifically, the intake pipe 39 includes a pipe body 391 and two telescopic pipes 392, which are fixed to the surface of the pipe body 391.

[0029] Specifically, the sealing protrusion 312 is T-shaped.

[0030] Specifically, the adjustment part 35 includes a transmission screw 352 that is rotatably connected to the inner wall of the rectangular sleeve 310. The transmission screw 352 is threadedly connected to the inner wall of the slide 311. A motor 351 is fixedly connected to one side surface of the rectangular sleeve 310. The output end of the motor 351 is fixedly connected to one end of the transmission screw 352.

[0031] In this embodiment: when the motor 351 is turned on, the motor 351 can drive the transmission screw 352 to rotate, and the transmission screw 352 controls the slide 311 and the rod 33 to move, which can be adjusted according to the position of the water inlet hole of the well cover.

[0032] Specifically, the diameter of rod 33 is smaller than the diameter of the water inlet hole of the well cover.

[0033] Specifically, a handle 34 is fixedly connected to one side surface of the frame 1. The handle 34 is U-shaped and can be used to move the frame 1 and the raised manhole cover, thereby improving ease of use.

[0034] Working principle: During use, the frame 1 is moved above the manhole cover by the wheels 2. Then, the motor 351 is turned on, which drives the transmission screw 352 to rotate. The transmission screw 352 controls the movement of the slide 311 and the rod 33. The position can be adjusted according to the water inlet hole of the manhole cover to align the rod 33 with the water inlet hole. Then, the cylinder 31 drives the moving plate 32 to move down. After the rod 33 passes through the water inlet hole, the positioning ring 37 contacts and positions itself with the manhole cover. The pump 38 works to supply air. The air enters the air chamber 313 and the slide chamber 314, pushing the sealing protrusion 312 to move. The sealing protrusion 312 abuts against the inner wall of the manhole cover. The positioning ring 37 and the sealing protrusion 312 clamp the manhole cover. The cylinder 31 drives the moving plate 32 to move upward to lift the manhole cover. When released, the pump 38 draws in air, which drives the sealing protrusion 312 to reset, thus completing the operation.

Claims

1. A lifting device for municipal road white-to-black manhole covers, comprising a frame (1), characterized in that: The frame (1) is provided with multiple sets of wheels (2) on its surface. A lifting mechanism (3) is also provided on the surface of the frame (1). The lifting mechanism (3) includes a movable plate (32) slidably connected to the inner wall of the frame (1). Two cylinders (31) are fixedly connected to the surface of the frame (1). The output ends of the cylinders (31) pass through the frame (1) and are fixedly connected to the surface of the movable plate (32). A rectangular sleeve (310) is fixedly connected to the surface of the movable plate (32). Two slides (311) are slidably connected to the inner wall of the rectangular sleeve (310). The surfaces of the slides (311) are fixedly connected to... The rod (33) has an air chamber (313) and multiple sliding chambers (314) on its inner wall. The air chamber (313) is connected to the multiple sliding chambers (314). The inner wall of the sliding chamber (314) is slidably connected to a sealing protrusion (312). The surface of the moving plate (32) is fixedly connected to a pump body (38). The output end of the pump body (38) is fixedly connected to an air inlet pipe (39). The other end of the air inlet pipe (39) is fixedly connected to the rod (33) and communicates with the air chamber (313). An adjustment part (35) is provided between the rectangular sleeve (310) and the slide (311).

2. The municipal road white-to-black manhole cover lifting device according to claim 1, characterized in that: The surface of the rod (33) is provided with a threaded groove (36), and a positioning ring (37) is threadedly connected to the threaded groove (36) on the surface of the rod (33).

3. A municipal road white-to-black manhole cover lifting device according to claim 1, characterized in that: The intake pipe (39) includes a pipe body (391) and two telescopic pipes (392), the two telescopic pipes (392) being fixed to the surface of the pipe body (391).

4. A municipal road white-to-black manhole cover lifting device according to claim 1, characterized in that: The sealing protrusion (312) is T-shaped.

5. A lifting device for municipal road white-to-black manhole covers according to claim 1, characterized in that: The adjustment part (35) includes a transmission screw (352) rotatably connected to the inner wall of the rectangular sleeve (310). The transmission screw (352) is threadedly connected to the inner wall of the slide (311). A motor (351) is fixedly connected to one side surface of the rectangular sleeve (310). The output end of the motor (351) is fixedly connected to one end of the transmission screw (352).

6. A municipal road white-to-black manhole cover lifting device according to claim 1, characterized in that: The diameter of the rod (33) is smaller than the diameter of the water inlet hole of the well cover.

7. A municipal road white-to-black manhole cover lifting device according to claim 1, characterized in that: A handle (34) is fixedly connected to one side surface of the frame (1), and the handle (34) is U-shaped.

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