A convenient asphalt concrete scraping device around inspection well and use method thereof

Abstract

The application provides a convenient asphalt concrete scraping device around an inspection well and a use method. The device comprises a stand, a fixing mechanism, a supporting assembly, a driving assembly, a scraping mechanism and a measuring assembly. The fixing mechanism is uniformly arranged around the stand, and the stand is fixed to the inspection well cover, including a fixing block extending into the water leakage port of the inspection well cover. The supporting assembly comprises a telescopic supporting frame, the two ends of which are respectively hingedly connected with the stand and the fixing mechanism. The driving assembly is arranged on the stand, and comprises a bidirectional motor, a speed reducer and a controller. The scraping mechanism comprises a telescopic horizontal rod connected with the driving assembly, a vertical rod and a detachable scraping plate assembly. The measuring assembly is arranged on the stand and is used for measuring the flatness of the asphalt concrete. The device is more stable in overall fixation, can be applied to inspection well covers with different sizes, has a large operation range, a small volume and is convenient for transportation, and is convenient for controlling the flatness.

Description

Technical Field

[0001] This invention belongs to the field of road construction technology, and in particular relates to a convenient asphalt concrete leveling device around manholes and its usage method. Background Technology

[0002] During the construction of highways, bridges, municipal roads, and civil aviation airports, manholes for municipal pipelines are often installed within the road area. During asphalt concrete construction, the concrete around the manholes needs to be leveled to ensure a smooth road surface. Current technology typically involves pouring asphalt concrete near the manholes and manually distributing, spreading, and leveling it using hand tools. This method is difficult to execute, relies heavily on worker experience for smoothness control, and inevitably introduces errors. Consequently, the smoothness of the asphalt concrete paving is hard to control, resulting in low construction efficiency and high costs.

[0003] Chinese Patent Publication No. CN115341437A discloses an automatic asphalt concrete leveling device and its usage method around inspection wells. This device employs a transmission mechanism, multiple leveling mechanisms, and connecting rods to level the asphalt concrete around the well. The transmission mechanism drives the leveling mechanisms, reducing manual labor and improving work efficiency. However, this device has poor stability, a fixed leveling range, and is not suitable for leveling inspection wells of different sizes or asphalt concrete areas. Furthermore, it is bulky, making manual handling difficult. Additionally, the device cannot determine whether the flatness of the leveled asphalt concrete meets requirements. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a convenient asphalt concrete leveling device and method for use around manholes, which solves the problems of poor flatness, low efficiency and high cost of manual leveling. It is applicable to manholes of different sizes or asphalt concrete of different areas. The volume can be reduced by shrinking, which is convenient for manual handling, and the leveling quality is easy to control.

[0005] The technical solution adopted in this invention is: a convenient asphalt concrete leveling device around a manhole, comprising: a column; a fixing mechanism evenly arranged around the column to fix the column to the manhole cover; a support assembly including a telescopic support frame, the two ends of which are hinged to the column and the fixing mechanism respectively; a drive assembly disposed on the column; a leveling mechanism having a telescopic horizontal bar connected to the drive assembly, the leveling mechanism rotating around the column to level the asphalt concrete around the manhole; and a measuring assembly disposed on the column for measuring the flatness of the asphalt concrete.

[0006] Furthermore, the fixing mechanism includes a base hinged to the support frame and a fixing block disposed below the base. The fixing block extends into the drain outlet of the inspection well cover. A triangular anti-slip block is provided on the end face of the fixing block near the column, and the triangular anti-slip block is in contact with the side wall of the drain outlet.

[0007] Furthermore, the support frame includes support rods and a sleeve that threadedly connects two of the support rods. When the sleeve is rotated, the two support rods move closer or further apart relative to each other.

[0008] Furthermore, the support assembly also includes a connector. The support frame has several holes along its length. One end of the connector is hinged to the column, and the other end is connected to the support frame by a bolt passing through the hole.

[0009] Furthermore, the drive assembly includes a chassis, in which a bidirectional motor, a reducer, and a controller electrically connected to both are disposed; the shaft of the bidirectional motor is aligned with the central axis of the column and extends upward through the chassis, and the reducer is mounted on the shaft of the bidirectional motor.

[0010] Furthermore, the leveling mechanism also includes a vertical rod and a scraper assembly. The horizontal rod is evenly disposed on the outer wall of the rotating shaft and extends radially along the rotating shaft, and is connected to the vertical rod. The bottom of the vertical rod is detachably connected to the scraper assembly. The scraper assembly includes a scraper blade with a double-layer scraping surface.

[0011] Furthermore, the horizontal bar is an electrically operated telescopic bar.

[0012] Furthermore, the column is provided with a storage groove that cooperates with the vertical rod. The storage groove is provided with a retaining strip along its length direction. The retaining strip is fixed to the side wall of the storage groove by a spring. When the horizontal rod is retracted, the vertical rod is inserted into the storage groove and locked by the retaining strip.

[0013] Furthermore, the column is also provided with a sliding groove along its length direction, and the measuring component includes a connecting part and a measuring part. The connecting part is engaged in the sliding groove, and the measuring part extends to the outside of the sliding groove.

[0014] A convenient method for using an asphalt concrete leveling device around inspection wells includes the following steps:

[0015] Place the support column in the center of the manhole cover;

[0016] Open the connector and the support frame, and connect the connector and the support frame;

[0017] Rotate the casing, adjust the length of the support frame according to the position of the leak in the inspection well, install the fixing block and insert it into the leak;

[0018] Rotate the sleeve in the opposite direction to make the triangular anti-slip block lock the inspection well cover;

[0019] Adjust the height of the measuring component;

[0020] Control the extension of the horizontal bar and install the scraper assembly so that one side of the scraper is in close contact with the manhole cover;

[0021] The bidirectional motor is used to perform the leveling operation;

[0022] Turn off the bidirectional motor and remove the scraper assembly and fixing block;

[0023] The horizontal bar is shortened so that the vertical bar is embedded in the storage slot;

[0024] Disconnect the connector and the support frame and tighten them toward the column.

[0025] The advantages and positive effects of this invention are:

[0026] 1. By inserting the fixing block into the drain outlet of the manhole cover and adjusting the angle of the connector and the length of the support frame, the device can be more securely fixed to manhole covers of different sizes.

[0027] 2. By controlling the length of the horizontal bar, it can be adapted to leveling operations on asphalt concrete of different areas;

[0028] 3. The horizontal bar retracts, causing the vertical bar to embed into the column, reducing the overall volume of the device and making it easier to transport;

[0029] 4. The connectors and support frame can retract towards the column, further reducing the overall volume;

[0030] 5. By setting up a measuring device, it is easy to control the leveling quality, thus ensuring the flatness of the asphalt concrete. Attached Figure Description

[0031] Figure 1 This is a structural schematic diagram of a specific embodiment of the present invention;

[0032] Figure 2 This is a structural cross-sectional view of a specific embodiment of the present invention;

[0033] Figure 3 This is a schematic diagram of a fixed component structure according to a specific embodiment of the present invention;

[0034] Figure 4 This is a schematic diagram of a support frame structure according to a specific embodiment of the present invention;

[0035] Figure 5 This is a schematic diagram of the connection between the support frame and the connector according to a specific embodiment of the present invention;

[0036] Figure 6 This is a schematic diagram of a connector structure according to a specific embodiment of the present invention;

[0037] Figure 7 This is a schematic diagram of the drive component structure according to a specific embodiment of the present invention;

[0038] Figure 8 This is a schematic diagram of the scraper assembly structure according to a specific embodiment of the present invention;

[0039] Figure 9 This is a schematic diagram of a horizontal bar structure according to a specific embodiment of the present invention;

[0040] Figure 10 This is a schematic diagram of a storage slot structure according to a specific embodiment of the present invention;

[0041] Figure 11 This is a front view of a storage slot structure according to a specific embodiment of the present invention;

[0042] Figure 12 This is a schematic diagram of the measurement component structure according to a specific embodiment of the present invention;

[0043] Figure 13 This is a schematic diagram of the connection of the measurement components according to a specific embodiment of the present invention;

[0044] Figure 14 This is a cross-sectional view of the measurement component connection according to a specific embodiment of the present invention.

[0045] In the picture:

[0046] 1. Column 101, Storage slot 102, Clip

[0047] 103. Spring; 104. Sliding groove; 105. Toothed belt

[0048] 2. Fixing mechanism 201, base 202, fixing block

[0049] 2021, Triangular anti-slip block 3, Support assembly 301, Support frame

[0050] 3011, support rod; 3012, sleeve; 302, hole

[0051] 303, Connector 4, Drive Component 401, Chassis

[0052] 402. Bidirectional motor; 403. Reducer; 4031. Reducer shaft

[0053] 404, Controller; 501, Leveling Mechanism; 504, Horizontal Bar

[0054] 5011, Telescopic mast; 5012, Horizontal motor; 5013, Horizontal reducer

[0055] 502, Vertical rod; 503, Scraper assembly; 5031, Connecting block

[0056] 5032, scraper; 5033, scraper blade; 6, measuring components.

[0057] 601. Connecting part; 602. Measuring part; 603. Locking block

[0058] 604, Reset Part; 7, Manhole Cover Detailed Implementation

[0059] The embodiments of the present invention will now be described with reference to the accompanying drawings.

[0060] First, it should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0061] The accompanying drawings in this specification are schematic diagrams to aid in illustrating the concept of the invention, and schematically show the shapes of the various parts and their interrelationships. Please note that, in order to clearly demonstrate the structure of the components in the embodiments of the invention, the drawings are not drawn to the same scale. The same reference numerals are used to indicate the same parts.

[0062] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0063] like Figures 1-2As shown, the first aspect of the present invention proposes a convenient asphalt concrete leveling device around a manhole, comprising a column 1, a fixing mechanism 2, a support assembly 3, a drive assembly 4, a leveling mechanism 5, and a measuring assembly 6. The column 1 is positioned on the upper part of a manhole cover 7 and aligned with the central axis of the manhole cover 7. The fixing mechanism 2 is evenly distributed around the column 1, fixing the column 1 to the manhole cover 7. The support assembly 3 includes a telescopic support frame 301, with its two ends hinged to the column 1 and the fixing mechanism 2 respectively, for supporting the column 1 and making it more securely fixed to the upper part of the manhole cover 7, preventing overturning during operation. The drive assembly 4 is positioned on the column 1 and drives the leveling mechanism 5 to perform the leveling operation. The leveling mechanism 5 includes a telescopic horizontal bar 501 connected to the drive assembly 4, which rotates around the column 1 to level the asphalt concrete around the manhole. The measuring assembly 6 is positioned on the column 1 and measures the flatness of the asphalt concrete.

[0064] The leveling mechanism 5 is driven by the drive component 4 to perform leveling operations, avoiding the problems of poor flatness, low efficiency, and high cost associated with manual leveling. The horizontal bar 501 is telescopic, allowing the working range of the leveling mechanism 5 to expand or shrink as it extends or retracts, making it more flexible for different working conditions. The support component 3 improves the stability of the device, enabling it to operate more smoothly for leveling operations. The telescopic design of the support frame 301 also allows it to be used with manhole covers of different sizes, further expanding the device's applicability. Furthermore, the measuring component 6 allows for real-time monitoring of the asphalt concrete's flatness, ensuring more reliable construction quality.

[0065] Based on the above embodiments, in order to ensure that the device proposed in this invention can be securely fixed to the manhole cover 7, in a specific implementation, such as... Figure 3 As shown, the fixing mechanism 2 includes a base 201 hinged to the support frame 301 and a fixing block 202 disposed below the base 201. Preferably, the fixing block 202 is a cuboid. The fixing block 202 extends into the drain outlet of the manhole cover 7. A triangular anti-slip block 2021 is provided on the end face of the fixing block 202 near the column 1. The triangular anti-slip block 2021 fits against the side wall of the drain outlet, so that the fixing mechanism 2 is fixed to the manhole cover 7, thereby fixing the entire device.

[0066] In practical applications, the cross-sectional dimensions of manholes on municipal roads vary. To further adapt the device proposed in this invention to manholes of different sizes, in a specific embodiment, such as... Figures 3-6As shown, the support assembly 3 includes a support frame 301 and a connector 303. The support frame 301 includes support rods 3011 and a sleeve 3012 that threadedly connects two support rods 3011. When the sleeve 3012 is rotated, the two support rods 3011 move closer or further apart, thus shrinking the support frame 301. The support frame 301 has several holes 302 along its length. One end of the connector 303 is hinged to the column 1, and the other end is connected to the support frame 301 through the holes 302 by a bolt. Preferably, the support rods 3011 include an upper support rod and a lower support rod, both of which have threads on their surfaces. The sleeve 3012 is a hollow cylinder with threads on its inner surface corresponding to the upper and lower support rods. The lower end of the upper support rod is threadedly connected to the sleeve 3012, and the upper end of the lower support rod is threadedly connected to the sleeve 3012. The length of the support frame 301 can be controlled by rotating the sleeve 3012.

[0067] In use, first place the fixing block 202 into the drain outlet of the manhole cover 7. By rotating the sleeve 3012, the support frame 301 retracts, driving the triangular anti-slip block 2021 to clamp the side wall of the drain outlet, thereby making the whole device more stable and preventing it from tipping over or moving during the leveling operation. After the leveling operation is completed, rotate the sleeve 3012 in the opposite direction to easily separate the fixing block 202 and the manhole cover 7, thereby moving the whole device.

[0068] To further improve the stability and convenience of device operation, such as Figure 7 As shown, the drive assembly 4 includes a housing 401, a bidirectional motor 402, a reducer 403, and a controller 404. The bidirectional motor 402, the reducer 403, and the controller 404 are all housed inside the housing 401. The bidirectional motor 402 and the reducer 403 are electrically connected to the controller 404. The shaft of the bidirectional motor 402 is aligned with the central axis of the column 1 and extends upward through the housing 401. The reducer 403 is mounted on the shaft of the bidirectional motor 402 to reduce the high-speed rotation of the bidirectional motor 402, thereby reducing the speed of the leveling mechanism 5 and enabling more stable leveling operations.

[0069] In a preferred embodiment, the chassis 401 is a cubic hollow box, the axis of the chassis 401 is aligned with the axis of the column 1, the controller 404 is installed between the inner wall of the chassis 401 and the bidirectional motor 402, a hole is provided at the center of the upper end face of the chassis 401, the shaft of the bidirectional motor 402 passes through the hole, and the reducer 403 is installed on the shaft of the bidirectional motor 402 and located on the upper part of the chassis 401.

[0070] Preferably, the bidirectional motor 402 can rotate in both directions, thereby driving the leveling mechanism 5 to rotate around the column 1 in both directions to achieve a better leveling effect.

[0071] In a preferred embodiment, such as Figure 1 , Figure 2 As shown, the leveling mechanism 5 includes a horizontal rod 501, a vertical rod 502, and a scraper assembly 503. The horizontal rod 501 is evenly arranged on the outer wall of the reducer shaft 4031 and extends radially thereafter, and is connected to the vertical rod 502. The bottom of the vertical rod 502 is detachably connected to the scraper assembly 503. The scraper assembly 503 includes a scraper blade 5033 with a double-layer scraping surface, so that the scraper assembly 503 can perform effective leveling operations when rotating in both the forward and reverse directions.

[0072] In a specific embodiment, such as Figure 8 As shown, the scraper assembly 503 includes a connecting block 5031, a scraper 5032, and a scraper blade 5033. The connecting block 5031 is detachably connected to the vertical rod 502. The upper and lower ends of the scraper 5032 are connected to the connecting block 5031 and the scraper blade 5033, respectively. By disassembling, the scraper 5032 and the scraper blade 5033 can be cleaned, repaired, and replaced to ensure their leveling effect, while reducing the overall weight of the device and making it easier to move the device to other construction sites.

[0073] In a preferred embodiment, such as Figure 9 As shown, the horizontal bar 501 is an electric telescopic bar, equipped with a telescopic bar 5011, a horizontal motor 5012, and a horizontal reducer 5013. The horizontal motor 5012 controls the extension or retraction of the telescopic bar 5011, and the horizontal reducer 5013 converts the high-speed rotation output of the horizontal motor 5012 into a low-speed, high-torque output, thereby reducing the extension and retraction speed of the telescopic bar 5011 and realizing the retraction and extension of the horizontal bar 501 to adapt to the asphalt concrete leveling operation in different ranges.

[0074] In the above embodiment, when the device stops performing the leveling operation, the scraper assembly 503 can be removed, the horizontal bar 501 can be retracted, and the vertical bar 502 can be retracted towards the column 1, reducing the overall volume of the device and making it easier to transfer the device to other parts for construction.

[0075] Furthermore, in order to further reduce the size of the device and make it easier to transport, in one specific embodiment, such as Figures 10-11As shown, the column 1 is provided with a storage groove 101 that cooperates with the vertical rod 502. Specifically, the storage groove 101 is U-shaped with its opening facing upwards, and its width is greater than the cross-sectional width of the corresponding vertical rod 502, and its depth is greater than the cross-sectional length of the corresponding vertical rod 502. The storage groove 101 is provided with a retaining strip 102 along its length direction, and the retaining strip 102 is fixed to the side wall of the storage groove 101 by a spring 103. Specifically, there are two retaining strips 102 and two springs 103. The horizontal bar 502 is positioned on the side walls of the opening of the storage slot 101 facing the vertical bar 502, and close to the edge of the opening. When the horizontal bar 501 retracts, it drives the vertical bar 502 to slowly approach the storage slot 101, compressing the spring 103 into the storage slot 101 and embedding it deep within the storage slot 101, separating it from the retaining strip 102. The spring 103 loses pressure and extends, resetting the retaining strip 102, thus securing the vertical bar 502 and preventing it from detaching from the storage slot 101.

[0076] In a specific embodiment, such as Figures 12-14 As shown, the column 1 is provided with a sliding groove 104 along its length. The measuring component 6 includes a connecting part 601 and a measuring part 602. The connecting part 601 is engaged with the sliding groove 104, and the measuring part 602 extends to the outside of the sliding groove 104. Specifically, the measuring component 6 is generally "I" shaped. The connecting part 601 and the measuring part 602 are parallel and arranged horizontally. The sliding groove 104 is provided with a toothed belt 105 along its length. The toothed belt 105 is provided with several triangular fixing bodies. The horizontal end of the connecting part 601 is provided with a locking block 603. The locking block 603 is connected to the connecting part 601 through a reset member 604. The reset member 604 is an elastic member that can drive the locking block 603 to move closer to or away from the connecting part 601. The shape of the locking block 603 matches the gap between the triangular fixing bodies, so that the locking block 603 is fixed to the toothed belt 105, thereby fixing the measuring component 6.

[0077] In one specific embodiment, the measuring unit 602 is a laser level.

[0078] In one specific embodiment, the controller 404 is electrically connected to the remote controller.

[0079] In the above embodiments, the cross-sectional shape of the column 1 can be square, circular, or polygonal. In a specific embodiment, the column 1 is provided with a storage groove 101 and a sliding groove 104, which are vertically offset. At the same time, the storage groove 101 and the support component 3 are vertically offset. The drive component 4 is located at the top of the column 1, the support component 3 is located in the middle of the column 1, and the measuring component 6 is located at the bottom of the support component 3.

[0080] In the above embodiments, the number of leveling mechanisms 5 can be set according to needs; the number of fixing mechanisms 2 can be set according to the number of water outlets of the manhole cover 7; and the number of support components 3 can be three or more.

[0081] A second aspect of this invention provides a convenient method for using an asphalt concrete leveling device around a manhole, comprising the following steps:

[0082] Place column 1 at the center of manhole cover 7;

[0083] Open connector 303 and support frame 301, and connect connector 303 and support frame 301;

[0084] Rotate the sleeve 3012, adjust the length of the support frame 301 according to the position of the well leak, install the fixing block 202 and insert it into the leak;

[0085] Rotate the casing 3012 in the opposite direction to make the triangular anti-slip block 2021 clamp the inspection well cover;

[0086] Adjust the height of measuring component 6;

[0087] Extend the horizontal bar 501 and install the scraper assembly 503 so that one side of the scraper 5033 is in close contact with the manhole cover;

[0088] The bidirectional motor 402 is used to perform the leveling operation;

[0089] Turn off the bidirectional motor 402 and remove the scraper assembly 503 and the fixing block 202;

[0090] The horizontal bar 501 is shortened so that the vertical bar 502 is embedded in the storage slot 101;

[0091] Disconnect the connector 303 from the support frame and tighten them toward the column 1.

[0092] This invention proposes a convenient asphalt concrete leveling device and method for use around manholes. By inserting a fixing block into the drain outlet of the manhole cover and adjusting the angle of the connector and the length of the support frame, the device can be more securely fixed to manhole covers of different sizes. By controlling the length of the horizontal bar, it can be applied to leveling operations of asphalt concrete of different areas. The retraction of the horizontal bar causes the vertical bar to embed into the column, reducing the overall volume of the device and making it easier to transport. The connector and support frame can retract towards the column, further reducing the overall volume. By setting a measuring device, it is easy to control the leveling quality and ensure the flatness of the asphalt concrete.

[0093] The embodiments of the present invention have been described in detail above, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A convenient asphalt concrete leveling device around inspection wells, characterized in that, include: Columns; A fixing mechanism is evenly arranged around the column to fix the column to the manhole cover; the fixing mechanism includes a base hinged to the support frame and a fixing block disposed below the base, the fixing block extends into the drain outlet of the manhole cover, and a triangular anti-slip block is provided on the end face of the fixing block near the column, the triangular anti-slip block is in contact with the side wall of the drain outlet. The support assembly includes a telescopic support frame, the two ends of which are hinged to the column and the fixing mechanism, respectively. The drive assembly is disposed on the column; The leveling mechanism includes a retractable horizontal bar and a vertical bar connected to the drive assembly. The leveling mechanism rotates around the column to level the asphalt concrete surrounding the inspection well. The column has a receiving groove that mates with the vertical bar. The receiving groove has a retaining strip along its length, which is fixed to the side wall of the receiving groove by a spring. When the horizontal bar retracts, the vertical bar is inserted into the receiving groove and secured by the retaining strip. A measuring component, mounted on the column, is used to measure the flatness of the asphalt concrete.

2. The asphalt concrete leveling device around the inspection well according to claim 1, characterized in that: The support frame includes support rods and a sleeve that threads two of the support rods together. When the sleeve is rotated, the two support rods move closer to or further apart from each other.

3. The asphalt concrete leveling device around the inspection well according to claim 2, characterized in that: The support assembly also includes a connector. The support frame has several holes along its length. One end of the connector is hinged to the column, and the other end is connected to the support frame by a bolt passing through the hole.

4. The asphalt concrete leveling device around the inspection well according to claim 1 or 3, characterized in that: The drive assembly includes a chassis, in which a bidirectional motor, a reducer, and a controller electrically connected to both are disposed; the bidirectional motor shaft is aligned with the central axis of the column and extends upward through the chassis, and the reducer is mounted on the bidirectional motor shaft.

5. The asphalt concrete leveling device around the inspection well according to claim 4, characterized in that: The leveling mechanism further includes a scraper assembly. The horizontal rods are evenly arranged on the outer wall of the reducer shaft and extend radially along the shaft, and are connected to the vertical rods. The bottom of the vertical rods is detachably connected to the scraper assembly. The scraper assembly includes a scraper blade with a double-layer scraping surface.

6. The asphalt concrete leveling device around the inspection well according to claim 5, characterized in that: The horizontal pole is an electrically operated telescopic pole.

7. The asphalt concrete leveling device around the inspection well according to claim 1 or 6, characterized in that: The column is also provided with a sliding groove along its length. The measuring component includes a connecting part and a measuring part. The connecting part is engaged in the sliding groove, and the measuring part extends to the outside of the sliding groove.

8. A method for using the convenient asphalt concrete leveling device around a manhole as described in claim 7, characterized in that, Includes the following steps: Place the support column in the center of the manhole cover; Open the connector and the support frame, and connect the connector and the support frame; Rotate the casing, adjust the length of the support frame according to the position of the leak in the inspection well, install the fixing block and insert it into the leak; Rotate the sleeve in the opposite direction to make the triangular anti-slip block lock the inspection well cover; Adjust the height of the measuring component; Control the extension of the horizontal bar and install the scraper assembly so that one side of the scraper is in close contact with the manhole cover; The bidirectional motor is used to perform the leveling operation; Turn off the bidirectional motor and remove the scraper assembly and fixing block; The horizontal bar is shortened so that the vertical bar is embedded in the storage slot; Disconnect the connector and the support frame and tighten them toward the column.

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