A leveling device for smoothly transitioning a manhole cover to an asphalt pavement

Abstract

The application discloses a leveling device for smooth transition of a well lid and an asphalt pavement, and belongs to the field of leveling devices. The leveling device comprises a driving placement mechanism, the upper portion of the driving placement mechanism is provided with an extension mechanism, the outer side of the extension mechanism is provided with a plurality of troweling mechanisms, the driving placement mechanism comprises a base, a rotating shaft is rotationally connected to the center of the upper surface of the base, the extension mechanism comprises a disc, a plurality of penetrating movable grooves are formed in the upper surface of the disc, and a fixed rod is fixedly connected to the inside of the movable groove, the leveling device has high adaptability, can be flexibly adapted to different construction scenes and specification requirements, the coverage range of the troweling mechanism can be adjusted through the extension mechanism, the troweling mechanism can be flexibly adjusted to adapt to well lids of different sizes, the height of the troweling plate can be flexibly adjusted through the troweling mechanism, the troweling mechanism can be flexibly adjusted to adapt to asphalt pavements of different paving thicknesses, the problems of poor adaptability and inability to be flexibly adjusted of the existing device are effectively solved, and the application range of the device is expanded.

Description

Technical Field

[0001] This invention relates to the field of leveling devices, and more particularly to a leveling device for a smooth transition between a manhole cover and an asphalt pavement. Background Technology

[0002] In the construction of municipal road asphalt paving, manhole covers are an indispensable municipal facility, and their smooth connection with the road surface directly affects the quality of road traffic and driving safety. At present, due to limited construction space and complex structural connections, manhole covers are prone to settlement, misalignment, cracks and other defects, resulting in an elevation difference between the manhole cover and the asphalt pavement. This not only causes vehicles to ride bumpy and generate noise, but also shortens the service life of the pavement, increases maintenance costs, and even creates safety hazards.

[0003] Existing manhole cover leveling devices often suffer from poor adaptability and cumbersome operation. Most cannot flexibly adjust the leveling height according to construction needs, making them unsuitable for asphalt pavements of varying thicknesses and prone to unevenness between the manhole cover and the road surface after leveling. Furthermore, existing devices cannot adjust the leveling range based on manhole cover size differences, resulting in insufficient adaptability to different sizes and uneven leveling around the manhole cover. In addition, current leveling operations largely rely on manual labor, leading to low efficiency and poor precision, hindering automated leveling. Manual operation is also susceptible to experience-based biases, making it difficult to guarantee a smooth and consistent transition between the manhole cover and the road surface. Therefore, we propose a leveling device for a smooth transition between manhole covers and asphalt pavements. Summary of the Invention

[0004] Purpose of the Invention: The purpose of this invention is to provide a leveling device for a smooth transition between manhole covers and asphalt pavements. This addresses the problems of existing manhole cover leveling devices, such as poor adaptability, cumbersome operation, inability to flexibly adjust the leveling height and range according to construction needs, and difficulty in adapting to asphalt pavements of different thicknesses and manhole covers of different specifications. The invention enables flexible adjustment of the leveling height and range, improving the device's adaptability to different construction scenarios and manhole covers of different specifications. Another purpose of this invention is to provide a leveling device for a smooth transition between manhole covers and asphalt pavements, replacing traditional manual leveling operations, improving the efficiency and accuracy of asphalt leveling around manhole covers, achieving automatic leveling operation, reducing the influence of manual experience on the leveling effect, and ensuring the smoothness and consistency of the connection between the manhole cover and the asphalt pavement.

[0005] Technical solution: A leveling device for smooth transition between manhole cover and asphalt pavement, comprising a drive placement mechanism, wherein an extension mechanism is provided above the drive placement mechanism;

[0006] Multiple smoothing mechanisms are provided on the outer side of the stretching mechanism;

[0007] The drive placement mechanism includes a base, and a rotating rod is rotatably connected to the center of the upper surface of the base via a rotating shaft;

[0008] The extension mechanism includes a disc with multiple through-type movable slots on its upper surface. A fixed rod is fixedly connected inside each movable slot. A movable block is slidably installed on the outer wall of the fixed rod, located inside the movable slot. A rotating head is fixedly connected to the top of the movable block. A traction rod is rotatably installed on the outer wall of the rotating head via a rotating shaft. A rotating head two is rotatably installed at the end of the traction rod away from the rotating head one via a rotating shaft. A threaded sleeve is fixedly connected to multiple rotating heads two. A screw rod is threaded on the inner side of the threaded sleeve one. The bottom end of the screw rod one is rotatably connected to the center of the upper surface of the disc via a rotating shaft.

[0009] Furthermore, multiple suction cups are fixedly connected to the lower surface of the base.

[0010] Furthermore, a gear is fixedly connected to the outer wall of the rotating rod.

[0011] Furthermore, a motor is fixedly connected to the right side of the upper surface of the base, and a second gear is fixedly connected to the top of the output shaft of the motor. The outer side wall of the first gear meshes with the outer side wall of the second gear.

[0012] Furthermore, a knob is fixedly connected to the top end of the screw.

[0013] Furthermore, the smoothing mechanism includes a horizontal arm, the upper surface of which is fixedly connected to the bottom of the movable block. A second threaded sleeve is embedded and fixed inside the horizontal arm, and a second screw is threaded on the inner side of the second threaded sleeve. A smoothing plate is rotatably mounted on the bottom end of the second screw via a rotating shaft. A guide vertical rod is symmetrically fixedly connected to the top of the smoothing plate, and the top end of the guide vertical rod extends through to the top of the horizontal arm.

[0014] Furthermore, a knob is fixedly connected to the top end of the screw.

[0015] Beneficial effects: It can flexibly adapt to different construction scenarios and specification requirements. The coverage of the smoothing mechanism can be adjusted through the extension mechanism to adapt to manhole covers of different sizes. At the same time, the height of the smoothing plate can be flexibly adjusted through the smoothing mechanism to adapt to asphalt pavements of different paving thicknesses. It effectively solves the problems of poor adaptability and inflexible adjustment of existing devices and expands the application range of the device.

[0016] The guide rod in the smoothing mechanism can guide and limit the smoothing plate, preventing it from shifting during height adjustment and smoothing operations. This ensures that the smoothing plate is precisely aligned with the design elevation of the asphalt pavement. At the same time, the drive placement mechanism can drive the extension mechanism and the smoothing mechanism to rotate as a whole, achieving all-round and uniform smoothing of the asphalt around the manhole cover. This ensures the smoothness and consistency of the connection between the manhole cover and the asphalt pavement, effectively preventing problems such as settlement, misalignment, and cracks around the manhole cover.

[0017] The device has a reasonable overall structure design. The smoothing range and height can be adjusted by turning a knob without complicated operation. At the same time, it relies on motor drive to realize automatic smoothing operation, replacing traditional manual leveling, reducing the influence of human experience on the leveling effect, greatly improving the efficiency and accuracy of leveling operation, and reducing the intensity of manual labor.

[0018] The drive placement mechanism achieves tight adhesion to the ground through suction cups, which can effectively prevent the device from shifting during the leveling process, ensuring operational stability and leveling effect, thereby extending the service life of the road surface, reducing road maintenance costs, eliminating driving safety hazards caused by improper connection between manhole covers and the road surface, and improving the quality of road traffic. Attached Figure Description

[0019] Figure 1 This is a front view structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the drive placement mechanism of the present invention;

[0021] Figure 3 This is a schematic diagram of the extension mechanism of the present invention;

[0022] Figure 4 This is a top view of the extension mechanism of the present invention;

[0023] Figure 5 This is a schematic diagram of the smoothing mechanism of the present invention.

[0024] In the diagram: 1. Drive placement mechanism; 2. Extension mechanism; 3. Smoothing mechanism; 101. Base; 102. Rotating rod; 103. Suction cup; 104. Gear 1; 105. Motor; 106. Gear 2; 201. Disc; 202. Movable groove; 203. Fixed rod; 204. Movable block; 205. Rotating head 1; 206. Traction rod; 207. Rotating head 2; 208. Screw sleeve 1; 209. Screw 1; 210. Knob 1; 301. Cross arm; 302. Screw sleeve 2; 303. Screw 2; 304. Smoothing plate; 305. Guide vertical rod; 306. Knob 2. Detailed Implementation

[0025] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Example

[0027] like Figure 1 and Figure 2 As shown, a leveling device for smooth transition between manhole cover and asphalt pavement is provided, including a drive placement mechanism 1;

[0028] The drive placement mechanism 1 includes a base 101, and a rotating rod 102 is rotatably connected to the center of the upper surface of the base 101 via a rotating shaft;

[0029] Multiple suction cups 103 are fixedly connected to the lower surface of the base 101;

[0030] Gear 104 is fixedly connected to the outer wall of the rotating rod 102;

[0031] A motor 105 is fixedly connected to the right side of the upper surface of the base 101. A gear 106 is fixedly connected to the top of the output shaft of the motor 105. The outer side wall of the gear 104 meshes with the outer side wall of the gear 106.

[0032] When in use, first move the drive placement mechanism 1 directly above the manhole cover to be leveled, press the base 101, so that the multiple suction cups 103 on the lower surface of the base 101 are tightly attached to the ground, thereby fixing the drive placement mechanism 1 and preventing the device from shifting during the leveling operation.

[0033] When the motor 105 is started, the output shaft of the motor 105 drives the second gear 106 to rotate. Since the second gear 106 is meshed with the first gear 104 on the outer wall of the rotating rod 102, the rotation of the second gear 106 will drive the first gear 104 and the rotating rod 102 to rotate synchronously, thereby driving the extension mechanism 2 and the smoothing mechanism 3 above to rotate as a whole, providing rotational power for subsequent all-round smoothing of the asphalt around the manhole cover.

[0034] like Figure 3 and Figure 4 As shown, an extension mechanism 2 is provided above the drive placement mechanism 1;

[0035] The extension mechanism 2 includes a disc 201. The upper surface of the disc 201 has multiple through-type movable slots 202. A fixed rod 203 is fixedly connected inside the movable slot 202. A movable block 204 is slidably installed on the outer wall of the fixed rod 203 and inside the movable slot 202. A rotating head 1 205 is fixedly connected to the top of the movable block 204. A traction rod 206 is rotatably installed on the outer wall of the rotating head 1 205 via a rotating shaft. A rotating head 207 is rotatably installed at the end of the traction rod 206 away from the rotating head 1 205 via a rotating shaft. A threaded sleeve 208 is fixedly connected among the multiple rotating heads 207. A screw 209 is threaded on the inner side of the threaded sleeve 208. The bottom end of the screw 209 is rotatably connected to the center of the upper surface of the disc 201 via a rotating shaft.

[0036] A knob 210 is fixedly connected to the top of the screw 209;

[0037] According to the specifications of the manhole cover to be leveled, turn knob 210. Knob 210 drives screw 209 to rotate. Since screw 209 is threadedly connected to sleeve 208, when screw 209 rotates, it will drive sleeve 208 to move up and down along screw 209.

[0038] When the screw sleeve 208 moves, the traction rod 206 is pulled or pushed by the rotating head 207. The traction rod 206 drives the movable block 204 to slide along the fixed rod 203 inside the movable groove 202 through the rotating head 205, thereby adjusting the spacing between multiple movable blocks 204. This causes the movable block 204 to drive the smoothing mechanism 3 below to extend or retract synchronously until the coverage of the smoothing mechanism 3 matches the size of the manhole cover, ensuring that the asphalt around the manhole cover can be smoothed.

[0039] like Figure 5 As shown, multiple smoothing mechanisms 3 are provided on the outer side of the stretching mechanism 2;

[0040] The smoothing mechanism 3 includes a horizontal arm 301, the upper surface of which is fixedly connected to the bottom of the movable block 204. A second threaded sleeve 302 is embedded and fixed inside the horizontal arm 301. A second screw 303 is installed on the inner thread of the second threaded sleeve 302. A smoothing plate 304 is rotatably installed at the bottom end of the second screw 303 through a rotating shaft. A guide vertical rod 305 is symmetrically fixedly connected to the top of the smoothing plate 304. The top end of the guide vertical rod 305 extends through to the top of the horizontal arm 301.

[0041] A knob 306 is fixedly connected to the top of screw 303;

[0042] According to the paving thickness of the asphalt pavement, turn knob 2 306. Knob 2 306 drives screw 2 303 to rotate. Since screw 2 303 is threadedly connected to the threaded sleeve 2 302 inside the cross arm 301, screw 2 303 will move up and down along the threaded sleeve 2 302 when it rotates, thereby driving the bottom trowel 304 to move up and down synchronously.

[0043] During the movement of the screed plate 304, the guide vertical bar 305 at its top slides up and down along the horizontal arm 301, which plays a guiding and limiting role to prevent the screed plate 304 from shifting until the bottom of the screed plate 304 is flush with the design elevation of the asphalt pavement, thus completing the adjustment of the screed height.

[0044] When the drive placement mechanism 1 drives the extension mechanism 2 and the smoothing mechanism 3 to rotate, the smoothing plate 304 rotates synchronously to smooth the asphalt around the manhole cover evenly, so as to achieve a smooth connection between the manhole cover and the asphalt pavement.

[0045] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A leveling device for smooth transition between a manhole cover and an asphalt pavement, comprising a drive placement mechanism (1), characterized in that: An extension mechanism (2) is provided above the drive placement mechanism (1); Multiple smoothing mechanisms (3) are provided on the outside of the stretching mechanism (2); The drive placement mechanism (1) includes a base (101), and a rotating rod (102) is rotatably connected to the center of the upper surface of the base (101) via a rotating shaft. The extension mechanism (2) includes a disc (201). Multiple through-type movable slots (202) are provided on the upper surface of the disc (201). A fixed rod (203) is fixedly connected inside each movable slot (202). A movable block (204) is slidably mounted on the outer wall of the fixed rod (203) and inside the movable slot (202). A rotating head (205) is fixedly connected to the top of the movable block (204). The outer side of the rotating head (205)... A traction rod (206) is rotatably mounted on the wall via a rotating shaft. A rotating head (207) is rotatably mounted on the end of the traction rod (206) away from the rotating head (205) via a rotating shaft. A screw sleeve (208) is fixedly connected to multiple rotating heads (207). A screw rod (209) is installed on the inner thread of the screw sleeve (208). The bottom end of the screw rod (209) is rotatably connected to the center of the upper surface of the disc (201) via a rotating shaft.

2. The leveling device for a smooth transition between a manhole cover and an asphalt pavement according to claim 1, characterized in that: Multiple suction cups (103) are fixedly connected to the lower surface of the base (101).

3. The leveling device for a smooth transition between a manhole cover and an asphalt pavement according to claim 2, characterized in that: Gear 1 (104) is fixedly connected to the outer wall of the rotating rod (102).

4. The leveling device for a smooth transition between a manhole cover and an asphalt pavement according to claim 3, characterized in that: A motor (105) is fixedly connected to the right side of the upper surface of the base (101). A gear two (106) is fixedly connected to the top of the output shaft of the motor (105). The outer side wall of the gear one (104) meshes with the outer side wall of the gear two (106).

5. A leveling device for smooth transition between manhole cover and asphalt pavement according to claim 4, characterized in that: A knob (210) is fixedly connected to the top of the screw (209).

6. A leveling device for smooth transition between manhole cover and asphalt pavement according to claim 5, characterized in that: The smoothing mechanism (3) includes a horizontal arm (301), the upper surface of which is fixedly connected to the bottom of the movable block (204), a screw sleeve (302) is embedded and fixed inside the horizontal arm (301), a screw rod (303) is installed on the inner thread of the screw sleeve (302), a smoothing plate (304) is rotatably installed at the bottom end of the screw rod (303) through a rotating shaft, and a guide rod (305) is symmetrically fixedly connected to the top of the smoothing plate (304), the top end of the guide rod (305) extends through to the top of the horizontal arm (301).

7. A leveling device for smooth transition between manhole cover and asphalt pavement according to claim 1, characterized in that: The top end of the screw two (303) is fixedly connected to the knob two (306).

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