A device for controlling the thickness of road earthwork backfill in water supply construction

Abstract

The present invention provides a device for controlling the thickness of road earthwork backfill in water supply construction, which relates to the technical field of controlling the thickness of earthwork backfill. It includes two groups of support mechanisms, which are symmetrically arranged left and right. The support mechanism includes two support columns that are symmetrically arranged front and back. A horizontal guide rod is arranged between the two support columns, and a moving beam is arranged between the two horizontal guide rods. A guide hole is penetrated through the moving beam, and the inner wall of the guide hole is slidably connected to the outer wall of the horizontal guide rod. An installation mechanism is arranged on the moving beam, and a laser rangefinder is arranged on the installation mechanism. In the present invention, the two groups of support mechanisms are respectively erected on the left and right sides of the backfill area. As the moving beam moves along the horizontal guide rod, the laser rangefinder can be driven to move through the installation mechanism. The laser rangefinder can measure the actual depth of the backfill area, and the current backfill thickness can be calculated through the recorded initial depth, so as to achieve precise control of the backfill thickness, reduce the workload of the staff, and improve the backfill efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of earthwork backfill thickness control, and particularly relates to a device for controlling the thickness of road earthwork backfill in water supply construction. Background Art

[0002] In water supply construction, road earthwork backfill is a key link, and its quality directly affects the safety and stability of water supply pipelines. Among them, the control of the backfill thickness of the road earthwork is a key link to ensure the project quality, stability and safety.

[0003] Chinese Patent with the authorization announcement number CN217150288U discloses a device for controlling the loose laying thickness of earth and stone backfill, including a loose laying thickness indicating frame. The loose laying thickness indicating frame includes a vertical rod with a backfill loose laying thickness indicating scale and a cross rod for indicating the backfill loose laying thickness. The cross rod can slide up and down along the vertical rod through a sliding member and can be fixed by a locking member. The bottom end of the loose laying thickness indicating frame has a base for facilitating its placement on the ground, and multiple loose laying thickness indicating frames are arranged at intervals along the outer periphery of the backfill area. This device has a simple and compact structure, is easy to operate, is convenient for day and night construction, and can accurately control the loose laying thickness of earth and stone.

[0004] When the above thickness control device is used to control the backfill thickness, it is necessary to arrange multiple loose laying thickness indicating frames along the outer periphery of the backfill area, resulting in a large workload. For trench backfill operations, it is necessary to continuously adjust the position of the loose laying thickness indicating frames according to the change of the backfill thickness, resulting in a low backfill work efficiency. Summary of the Invention

[0005] The present invention provides a device for controlling the thickness of road earthwork backfill in water supply construction to solve the technical problem that when the current thickness control device is used to control the backfill thickness, it is necessary to arrange multiple devices along the outer periphery of the backfill area, resulting in a large workload.

[0006] To solve the above technical problem, the present invention discloses a device for controlling the thickness of road earthwork backfill in water supply construction, including: two groups of support mechanisms, which are symmetrically arranged left and right. The support mechanism includes two support columns that are symmetrically arranged front and back. A horizontal guide rod is arranged between the two support columns, and a moving beam is arranged between the two horizontal guide rods. A guide hole is penetrated through the moving beam, and the inner wall of the guide hole is slidably connected to the outer wall of the horizontal guide rod. An installation mechanism is arranged on the moving beam, and a laser rangefinder is arranged on the installation mechanism. The output end of the laser rangefinder emits a vertical laser beam downward.

[0007] Preferably, a screw rod is arranged between the front and rear support columns. The screw rod is parallel to the horizontal guide rod, and the two ends of the screw rod are respectively rotatably connected to the support columns. A forward and reverse motor is arranged outside one of the support columns, and the output end of the forward and reverse motor is connected to one end of the screw rod. A threaded hole adapted to the screw rod is arranged in the moving beam, and the screw rod is in threaded transmission connection with the threaded hole.

[0008] Preferably, a support base is provided at the lower end of the support column, an installation base is provided at the bottom of the support base, and moving wheels are provided on the installation base.

[0009] Preferably, a support oil cylinder is provided at the bottom of the support base, and a support plate is provided at the lower end of the support oil cylinder.

[0010] Preferably, the installation mechanism includes a top plate, side plates and a bottom plate. The top plate is slidably arranged on the upper surface of the moving beam. The front end of the top plate is connected to the upper end of the side plate. The lower end of the side plate is connected to the front end of the bottom plate. The upper surface of the bottom plate is slidably connected to the lower surface of the moving beam. A plurality of laser rangefinders are provided on the lower surface of the bottom plate, and the plurality of laser rangefinders are arranged at equal intervals along the length direction of the moving beam. A screw hole is provided in the top plate, a bolt is arranged in the screw hole, and the lower end of the bolt contacts the upper surface of the moving beam.

[0011] Preferably, a lifting mechanism is provided on the lower surface of the bottom plate. The lifting mechanism is located behind the laser rangefinders. A soil storage box is provided at the lower end of the lifting mechanism. A partition is provided in the soil storage box. The partition divides the soil storage box into a soil storage cavity and a power cavity. The soil storage cavity is located in front of the power cavity. A sliding hole is provided in the front side wall of the soil storage box, and a retaining plate is slidably arranged in the sliding hole. One end of the retaining plate extends into the soil storage cavity. A limiting plate is provided at the front end of the retaining plate. A plurality of connecting springs are connected between the limiting plate and the front side wall of the soil storage box. A sliding rod is provided at the rear end of the retaining plate. The rear end of the sliding rod passes through the partition and extends into the power cavity. A driving mechanism is provided in the power cavity for driving the sliding rod to slide back and forth in the partition.

[0012] Preferably, the driving mechanism includes a driving motor. The driving motor is connected to the inner wall of the upper end of the soil storage box. A rotating shaft is provided at the output end of the driving motor, and a first cam is provided on the rotating shaft. The outer wall of the first cam contacts one end of the sliding rod away from the retaining plate.

[0013] Preferably, a scraping plate is provided on the front side wall at the lower end of the soil storage box, and the front side wall of the scraping plate is an arc surface.

[0014] Preferably, a return port is provided at a lower position on the front side wall of the soil storage box, and the return port is internally connected to the soil storage cavity.

[0015] Preferably, an installation frame is provided on the rear side wall of the soil storage box. One end of the installation frame is hingedly connected to the rear side wall of the soil storage box. A soil pressing roller is rotatably arranged at the end of the installation frame away from the soil storage box. A telescopic mechanism is provided between the installation frame and the soil storage box. One end of the telescopic mechanism is hingedly connected to the rear side wall of the soil storage box, and the other end of the telescopic mechanism is hingedly connected to the outer wall of the installation frame.

[0016] The technical solution of the present invention has the following advantages: The present invention provides a device for controlling the thickness of road earthwork backfill in water supply construction, which relates to the technical field of controlling the thickness of earthwork backfill. It includes two groups of support mechanisms, which are symmetrically arranged left and right. The support mechanism includes two support columns that are symmetrically arranged front and back. A horizontal guide rod is arranged between the two support columns, and a moving beam is arranged between the two horizontal guide rods. A guide hole is penetrated in the moving beam, and the inner wall of the guide hole is slidably connected to the outer wall of the horizontal guide rod. An installation mechanism is arranged on the moving beam, and a laser rangefinder is arranged on the installation mechanism. In the present invention, the two groups of support mechanisms are respectively erected on the left and right sides of the backfill area. As the moving beam moves along the horizontal guide rod, the laser rangefinder can be driven to move through the installation mechanism. The actual depth of the backfill area can be measured by the vertical laser beam emitted by the laser rangefinder. The current backfill thickness can be calculated through the recorded initial depth, so as to achieve precise control of the backfill thickness. It is not necessary to set up multiple such thickness control devices during the backfill work, which reduces the workload of the staff and improves the backfill efficiency.

[0017] Other features and advantages of the present invention will be described in the following specification, and part of them will become obvious from the specification or be understood by implementing the present invention. The objectives and other advantages of the present invention can be achieved and obtained by the devices specifically pointed out in the written specification and the accompanying drawings of the specification.

[0018] The following will further describe the technical solution of the present invention in detail through the drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention, and do not constitute a limitation to the present invention. In the drawings:

[0020] Figure 1 is a schematic diagram of the overall structure of a device for controlling the thickness of road earthwork backfill in water supply construction according to the present invention;

[0021] Figure 2 is a schematic diagram of the position of a device for controlling the thickness of road earthwork backfill in water supply construction according to the present invention;

[0022] Figure 3 is the present invention Figure 2 is an enlarged view of the structure at A in the present invention;

[0023] Figure 4 is a side view of the soil storage box in the present invention;

[0024] Figure 5 is a schematic diagram of the internal structure of the soil storage box in the present invention;

[0025] Figure 6 is the present invention Figure 5Partial cross-sectional view of the local structure at B-B in the [specific context];

[0026] Figure 7 For the present invention Figure 5 Partial cross-sectional view of the local structure at C-C in the [specific context].

[0027] In the figure: 1, support column; 2, horizontal guide rod; 3, moving beam; 4, laser rangefinder; 5, screw rod; 6, forward and reverse motor; 7, support seat; 8, mounting seat; 9, moving wheel; 10, support oil cylinder; 11, support plate; 12, top plate; 13, side plate; 14, bottom plate; 15, bolt; 16, lifting mechanism; 17, soil storage box; 18, partition board; 19, soil storage cavity; 20, power cavity; 21, soil retaining plate; 22, limiting plate; 23, connecting spring; 24, sliding rod; 25, driving motor; 26, rotating shaft; 27, first cam; 28, soil scraping plate; 29, return port; 30, mounting frame; 31, soil pressing roller; 32, telescopic mechanism; 33, moving block; 34, driving plate; 35, compression spring; 36, second cam; 37, moving rod; 38, reset spring; 39, roller; 40, leveling block. Specific embodiments

[0028] The following describes the preferred embodiments of the present invention with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustration and explanation of the present invention, and are not used to limit the present invention.

[0029] In addition, in the present invention, descriptions such as "first" and "second" are only for descriptive purposes, and do not particularly refer to the order or sequence. Nor are they used to limit the present invention. They are merely used to distinguish components or operations described with the same technical terms, and should not be construed as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions and technical features between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0030] Embodiment 1

[0031] The embodiment of the present invention provides a device for controlling the thickness of road earthwork backfill during water supply construction, as Figures 1-7As shown in the figure, it includes: two sets of support mechanisms, which are symmetrically arranged left and right. The support mechanism includes two support columns 1 that are symmetrically arranged front and back. A horizontal guide rod 2 is arranged between the two support columns 1. A moving beam 3 is arranged between the two horizontal guide rods 2. A guide hole is penetrated through the moving beam 3, and the inner wall of the guide hole is slidably connected to the outer wall of the horizontal guide rod 2. An installation mechanism is arranged on the moving beam 3, and a laser rangefinder 4 is arranged on the installation mechanism. The output end of the laser rangefinder 4 emits a vertical laser beam downward.

[0032] The working principle and beneficial effects of the above technical solution are as follows: When performing earthwork backfilling operations, taking the trench as an example for the backfilling area, first arrange the two sets of support mechanisms on the left and right sides at the upper end of the trench respectively. Then, install multiple installation mechanisms on the moving beam 3, and multiple laser rangefinders 4 are arranged on the installation mechanisms. First, use the laser rangefinder 4 to measure the initial depth of the trench. Then, perform layered filling. Move the laser rangefinder 4 above the backfilling position, and the actual depth of the current backfilling position can be measured. The difference between the initial depth and the actual depth is the backfilling thickness of the current backfilling position. Controlling the moving beam 3 to slide along the horizontal guide rod 2 can adjust the position of the laser rangefinder 4, so as to measure the backfilling thickness of the next backfilling position. Then, based on the calculated backfilling thickness, the corresponding backfill soil can be added, realizing precise control of the backfilling thickness. The above thickness control device does not need to be provided with multiple ones during the backfilling work, which reduces the workload of the staff, and does not need to continuously adjust the position of the support mechanism with the change of the backfilling thickness, improving the backfilling efficiency.

[0033] Embodiment 2

[0034] On the basis of the above Embodiment 1, as Figure 1 shown in the figure, a screw rod 5 is arranged between the front and back support columns 1. The screw rod 5 is parallel to the horizontal guide rod 2. The two ends of the screw rod 5 are respectively rotatably connected to the support columns 1. A forward and reverse motor 6 is arranged outside one of the support columns 1. The output end of the forward and reverse motor 6 is connected to one end of the screw rod 5. A threaded hole adapted to the screw rod 5 is arranged in the moving beam 3, and the screw rod 5 is in threaded transmission connection with the threaded hole.

[0035] The working principle and beneficial effects of the above technical solution are as follows: The rotation of the forward and reverse motor 6 can drive the screw rod 5 to rotate. The rotation of the screw rod 5 can drive the moving beam 3 to move along the horizontal guide rod 2, so as to automatically adjust the position of the laser rangefinder 4, enabling the laser rangefinder 4 to measure the thickness of different backfilling positions in the backfilling area, further reducing the labor intensity of the staff.

[0036] Embodiment 3

[0037] On the basis of Embodiment 1 or 2, as Figure 2 、 Figure 3 shown in the figure, a support seat 7 is arranged at the lower end of the support column 1. An installation seat 8 is arranged at the bottom of the support seat 7. A moving wheel 9 is arranged on the installation seat 8;

[0038] A support oil cylinder 10 is arranged at the bottom of the support seat 7, and a support plate 11 is arranged at the lower end of the support oil cylinder 10.

[0039] The working principle and beneficial effects of the above technical solution are as follows: A support seat 7 is arranged at the lower end of the support column 1. When arranging the support mechanism, the support oil cylinder 10 is in a retracted state. At this time, the moving wheel 9 contacts the ground at the upper end of the groove, which is convenient for the movement of the support column 1, thereby changing the overall position of the thickness control device. It is not necessary for the staff to carry the thickness control device, further reducing the workload of the staff. When the moving beam 3 moves above the backfill area, the support column 1 stops moving, and then the support oil cylinder 10 is controlled to extend. The support plate 11 gradually contacts the ground, and then the extension length of the support oil cylinder 10 is finely adjusted until the horizontal guide rod 2 is adjusted to be horizontal through a level, thereby ensuring the accuracy of the backfill thickness control.

[0040] Embodiment 4

[0041] Based on any one of Embodiments 1-3, as Figure 1 、 Figure 4 shown, the installation mechanism includes a top plate 12, side plates 13 and a bottom plate 14. The top plate 12 is slidably arranged on the upper surface of the moving beam 3. The front end of the top plate 12 is connected to the upper end of the side plate 13. The lower end of the side plate 13 is connected to the front end of the bottom plate 14. The upper surface of the bottom plate 14 is slidably connected to the lower surface of the moving beam 3. A plurality of laser rangefinders 4 are arranged on the lower surface of the bottom plate 14. The plurality of laser rangefinders 4 are arranged at equal intervals along the length direction of the moving beam 3. A screw hole is arranged in the top plate 12, and a bolt 15 is arranged in the screw hole. The lower end of the bolt 15 contacts the upper surface of the moving beam 3.

[0042] The working principle and beneficial effects of the above technical solution are as follows: The side plate 13 can connect the front ends of the top plate 12 and the bottom plate 14. The top plate 12 can be fixed on the moving beam 3 through the bolt 15, improving the stability of the laser rangefinder 4. There are openings at the rear ends of the top plate 12 and the bottom plate 14, which is convenient for the disassembly and installation of the installation mechanism, improving the disassembly and installation efficiency of the installation mechanism. The installation mechanism can be provided with multiple ones according to the width of the backfill area, ensuring that multiple installation mechanisms move synchronously driven by the moving beam 3, thereby driving multiple groups of laser rangefinders 4 to move synchronously, completing the synchronous detection of different backfill positions in the backfill area, expanding the measurement range, and improving the overall efficiency of the backfill work.

[0043] Embodiment 5

[0044] Based on Embodiment 4, as Figure 4 、 Figure 5As shown in the figure, a lifting mechanism 16 is provided on the lower surface of the bottom plate 14. The lifting mechanism 16 is located behind the laser rangefinder 4. A soil storage box 17 is provided at the lower end of the lifting mechanism 16. A partition 18 is provided in the soil storage box 17. The partition 18 divides the soil storage box 17 into a soil storage chamber 19 and a power chamber 20. The soil storage chamber 19 is located in front of the power chamber 20. A sliding hole is provided on the front side wall of the soil storage box 17. A retaining plate 21 is slidably arranged in the sliding hole. One end of the retaining plate 21 extends into the soil storage chamber 19. A limiting plate 22 is provided at the front end of the retaining plate 21. The limiting plate 22 is connected to the front side wall of the soil storage box 17 by a plurality of connecting springs 23. A sliding rod 24 is provided at the rear end of the retaining plate 21. The rear end of the sliding rod 24 passes through the partition 18 and extends into the power chamber 20. A driving mechanism is provided in the power chamber 20. The driving mechanism is used to drive the sliding rod 24 to slide back and forth in the partition 18;

[0045] The driving mechanism includes a driving motor 25. The driving motor 25 is connected to the inner wall of the upper end of the soil storage box 17. A rotating shaft 26 is provided at the output end of the driving motor 25. A first cam 27 is provided on the rotating shaft 26. The outer wall of the first cam 27 contacts one end of the sliding rod 24 away from the retaining plate 21.

[0046] The working principle and beneficial effects of the above technical solution are as follows: A lifting mechanism 16 is provided on the lower surface of the bottom plate 14. The lifting mechanism 16 can adopt an electric push rod. The lifting of the lifting mechanism 16 can drive the soil storage box 17 to move up and down. A small amount of backfill soil is stored in the soil storage chamber 19 of the soil storage box 17. When a small amount of backfill soil needs to be laid in the backfill area, first lower the soil storage box 17 to a preset position, and then start the driving motor 25. The rotation of the driving motor 25 can drive the rotation of the rotating shaft 26. The rotation of the rotating shaft 26 drives the rotation of the first cam 27. When the first cam 27 contacts the sliding rod 24, it drives the sliding rod 24 to slide back and forth in the partition 18. When the sliding rod 24 slides forward, the sliding rod 24 drives the retaining plate 21 to slide forward. The retaining plate 21 drives the limiting plate 22 to move forward, and the connecting spring 23 is stretched. The retaining plate 21 is separated from the partition 18, and the backfill soil on the retaining plate 21 can flow downward, so as to be laid in the backfill position. When the convex position of the first cam 27 gradually separates from the sliding rod 24, under the elastic force of the connecting spring 23, the retaining plate 21 slides backward until it contacts the partition 18. At this time, the backfill soil is blocked on the retaining plate 21 again, realizing the small amount and intermittent laying of the backfill soil, preventing the backfill soil from being too thick, and further improving the accuracy of the backfill thickness control.

[0047] Embodiment 6

[0048] On the basis of Embodiment 5, as Figure 5 shown, a scraping plate 28 is provided on the front side wall at the lower end of the soil storage box 17. The front side wall of the scraping plate 28 is set as an arc surface;

[0049] A return port 29 is arranged at a position close to the lower part of the front side wall of the soil storage box 17, and the return port 29 is communicated with the inside of the soil storage cavity 19.

[0050] The working principle and beneficial effects of the above technical solution are as follows: When backfilling soil is paved, the lifting mechanism 16 is used to control the downward movement of the soil storage box 17, so that the difference between the initial depth and the actual depth measured by the laser rangefinder 4 is equal to the target backfilling thickness. At this time, the moving beam 3 moves to drive the bottom plate 14 to move, and the bottom plate 14 drives the soil storage box 17 to move through the lifting mechanism 16. When the soil storage box 17 moves, it drives the soil scraping plate 28 to move. The length of the soil scraping plate 28 can be set according to the width of the backfilling area. During the movement of the soil scraping plate 28, the backfilling soil higher than the target backfilling thickness can be scraped off. Part of the scraped backfilling soil flows back into the soil storage cavity 19 through the return port 29 and falls again from the lower end of the soil storage cavity 19 to pave the backfilling position. By setting the soil scraping plate 28, the backfilling soil higher than the target backfilling thickness can be removed, making the control of the backfilling thickness more accurate and preventing the backfilling soil thickness at some positions from being greater than the target backfilling thickness.

[0051] Embodiment 7

[0052] On the basis of Embodiment 5, as Figure 4 shown, an installation frame 30 is arranged on the rear side wall of the soil storage box 17. One end of the installation frame 30 is hinged to the rear side wall of the soil storage box 17, and a soil pressing roller 31 is rotatably arranged at the end of the installation frame 30 away from the soil storage box 17. A telescopic mechanism 32 is arranged between the installation frame 30 and the soil storage box 17. One end of the telescopic mechanism 32 is hinged to the rear side wall of the soil storage box 17, and the other end of the telescopic mechanism 32 is hinged to the outer wall of the installation frame 30.

[0053] The working principle and beneficial effects of the above technical solution are as follows: The telescopic mechanism 32 can be an electric telescopic rod. The telescopic movement of the telescopic mechanism 32 can drive the installation frame 30 to rotate around the hinged position with the soil storage box 17, so as to adjust the height of the soil pressing roller 31 to make the height of the soil pressing roller 31 consistent with the target backfilling thickness. After the backfilling soil in the soil storage box 17 is paved to the backfilling position, the moving beam 3 drives the installation mechanism to move, and the installation mechanism drives the soil storage box 17 to move through the lifting mechanism 16. The soil storage box 17 drives the installation frame 30 to move, and the installation frame 30 drives the soil pressing roller 31 to move. The soil pressing roller 31 can then flatten the backfilling soil flowing out of the soil storage cavity 19, realizing the paving of a small amount of backfilling soil. Moreover, compared with manual paving, the backfilling thickness can be controlled more accurately, further improving the accuracy of backfilling thickness control.

[0054] Embodiment 8

[0055] On the basis of Embodiment 5, as Figures 5-7As shown, a moving block 33 is slidably arranged on the bottom wall of the power chamber 20. The moving block 33 is in an isosceles triangle shape, and guiding inclined surfaces are symmetrically arranged on the left and right sides of the moving block 33. A driving plate 34 is arranged on the upper surface of one end of the moving block 33 close to the partition plate 18, and a compression spring 35 is arranged at one end of the moving block 33 close to the partition plate 18. A second cam 36 is arranged at the lower end of the rotating shaft 26, and the outer wall of the second cam 36 is in contact with the side of the driving plate 34 away from the partition plate 18. Two chutes are arranged on the bottom wall of the soil storage box 17, and the two chutes are symmetrically arranged about the center line of the moving block 33. The chutes are communicated with the inside of the power chamber 20. A moving rod 37 is arranged in the chute, and the moving rod 37 slides left and right along the length direction of the chute. The two moving rods 37 are connected by a return spring 38. A roller 39 is horizontally arranged at the upper end of the moving rod 37, and the roller 39 is in contact with the guiding inclined surface of the moving block 33. The lower end of the moving rod 37 extends below the soil storage box 17 and a leveling block 40 is arranged. The front end of the leveling block 40 extends below the soil storage cavity 19. A first chamfer is arranged at the upper ends of the sides where the two leveling blocks 40 are close to each other, and a second chamfer is arranged at the side of the upper end of the leveling block 40 away from the first chamfer.

[0056] The working principle and beneficial effects of the above technical solution are as follows: The second cam 36 has a convex direction opposite to that of the first cam 27. When the convex end of the first cam 27 contacts the sliding rod 24, the convex end of the second cam 36 is separated from the driving plate 34. The backfill soil first flows through the lower end of the soil storage cavity 19 to the backfill position. Then, the convex end of the first cam 27 gradually separates from the sliding rod 24, while the convex end of the second cam 36 gradually contacts the driving plate 34. The second cam 36 drives the driving plate 34 to move towards the partition 18 through the convex end. The driving plate 34 drives the moving block 33 to move towards the partition 18, compressing the compression spring 35. The roller 39 contacts the guiding inclined surface of the moving block 33. During the movement of the moving block 33, the moving block 33 drives the roller 39 to move to the left and right sides through the guiding inclined surface. The roller 39 drives the moving rod 37 to slide in the chute, gradually stretching the return spring 38. The moving rod 37 drives the leveling block 40 to slide above the backfill position. The leveling block 40 can level the flowing backfill soil. The height of the lower surface of the leveling block 40 is higher than the lowest height of the soil pressing roller 31. When the soil pressing roller 31 presses on the leveled backfill soil, the soil pressing roller 31 can apply pressure evenly, so as to achieve a better compaction effect. At the same time, the leveled soil is also more easily affected by the soil pressing roller 31, improving the compaction efficiency. By leveling the backfill soil with the leveling block 40 and compacting it with the soil pressing roller 31, it is easier to control the backfill thickness and improve the efficiency of the backfill work. A second chamfer is provided at the upper end of the leveling block 40, which can enable the backfill soil to flow smoothly to the backfill position. By providing a first chamfer, part of the backfill soil can fall between the two first chamfers. When the two leveling blocks 40 move away from each other, the backfill soil falling between the two first chamfers can flow to the backfill position, reducing the paving dead angle of the backfill soil and improving the backfill effect. When the convex end of the second cam 36 is separated from the driving plate 34, under the elastic force of the compression spring 35, the mutually approaching sides of the two leveling blocks 40 come into contact again, facilitating the paving operation of a small amount of backfill soil next time.

[0057] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0058] In the present invention, unless otherwise clearly specified or limited, the terms "installed", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] Although the embodiments of the present invention have been disclosed as above, they are not limited to only the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily achieved. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the examples shown and described herein.

Claims

1. A device for controlling the thickness of road earth backfill during water supply construction, characterized in that: include: Two groups of support mechanisms are provided, the two groups of support mechanisms are symmetrically arranged left and right, the support mechanisms include two support columns (1) symmetrically arranged front and back, a horizontal guide rod (2) is arranged between the two support columns (1), a moving beam (3) is arranged between the two horizontal guide rods (2), a guide hole is arranged through the moving beam (3), the inner wall of the guide hole is slidably connected to the outer wall of the horizontal guide rod (2), a mounting mechanism is arranged on the moving beam (3), a laser rangefinder (4) is arranged on the mounting mechanism, and an output end of the laser rangefinder (4) emits a vertical laser beam downward; The mounting mechanism comprises a top plate (12), a side plate (13) and a bottom plate (14); the top plate (12) is slidably arranged on the upper surface of the moving beam (3); the front end of the top plate (12) is connected to the upper end of the side plate (13); the lower end of the side plate (13) is connected to the front end of the bottom plate (14); the upper surface of the bottom plate (14) is slidably connected to the lower surface of the moving beam (3); a plurality of laser rangefinders (4) are arranged on the lower surface of the bottom plate (14); the plurality of laser rangefinders (4) are arranged at equal intervals along the length direction of the moving beam (3); a screw hole is arranged in the top plate (12); a bolt (15) is arranged in the screw hole; the lower end of the bolt (15) contacts the upper surface of the moving beam (3); A lifting mechanism (16) is arranged on the lower surface of the bottom plate (14), the lifting mechanism (16) is located behind the laser rangefinder (4), a soil storage box (17) is arranged at the lower end of the lifting mechanism (16), a partition (18) is arranged in the soil storage box (17), the partition (18) divides the soil storage box (17) into a soil storage cavity (19) and a power cavity (20), the soil storage cavity (19) is located in front of the power cavity (20), a sliding hole is arranged on the front side wall of the soil storage box (17), a soil retaining plate (21) is slidably arranged in the sliding hole, and the soil retaining plate One end of the retaining plate (21) extends into the soil storage cavity (19), a limiting plate (22) is arranged at the front end of the retaining plate (21), the limiting plate (22) is connected to the front side wall of the soil storage box (17) through a plurality of connecting springs (23), a sliding rod (24) is arranged at the rear end of the retaining plate (21), the rear end of the sliding rod (24) passes through the partition (18) and extends into the power cavity (20), a driving mechanism is arranged in the power cavity (20), and the driving mechanism is used to drive the sliding rod (24) to slide back and forth in the partition (18).

2. A device for controlling the thickness of road earth backfill during water supply construction according to claim 1, characterized in that: A screw rod (5) is arranged between the front and rear support columns (1), the screw rod (5) is parallel to the horizontal guide rod (2), and the two ends of the screw rod (5) are respectively connected to the support columns (1) for rotation, a forward and reverse motor (6) is arranged outside one of the support columns (1), and the output end of the forward and reverse motor (6) is connected to one end of the screw rod (5), a threaded hole matched with the screw rod (5) is arranged in the moving beam (3), and the screw rod (5) is connected to the threaded hole by threaded transmission.

3. The device for controlling the thickness of road earth backfill during water supply construction according to claim 1, characterized in that: A support seat (7) is arranged at the lower end of the support column (1), a mounting seat (8) is arranged at the bottom of the support seat (7), and a moving wheel (9) is arranged on the mounting seat (8).

4. A device for controlling the thickness of road earth backfill during water supply construction according to claim 3, characterized in that: A supporting oil cylinder (10) is arranged at the bottom of the supporting seat (7), and a supporting plate (11) is arranged at the lower end of the supporting oil cylinder (10).

5. The device for controlling the thickness of road earth backfill during water supply construction according to claim 1, characterized in that: The driving mechanism comprises a driving motor (25), the driving motor (25) is connected to the inner wall of the upper end of the soil storage box (17), a rotating shaft (26) is arranged at the output end of the driving motor (25), a first cam (27) is arranged on the rotating shaft (26), and an outer wall of the first cam (27) contacts with an end of the sliding rod (24) away from the soil retaining plate (21).

6. The device for controlling the thickness of road earth backfill during water supply construction according to claim 1, characterized in that: The front side wall of the lower end of the soil storage box (17) is provided with a scraper plate (28), and the front side wall of the scraper plate (28) is set to a cambered surface.

7. A device for controlling the thickness of road earth backfill during water supply construction according to claim 6, characterized in that: A return port (29) is arranged at the lower position of the front side wall of the soil storage box (17), and the return port (29) is communicated with the interior of the soil storage cavity (19).

8. The device for controlling the thickness of road earth backfill during water supply construction according to claim 1, characterized in that: A mounting frame (30) is arranged on the rear side wall of the soil storage box (17), one end of the mounting frame (30) is hingedly connected to the rear side wall of the soil storage box (17), a soil pressing roller (31) is rotatably arranged on the mounting frame (30) away from one end of the soil storage box (17), a telescopic mechanism (32) is arranged between the mounting frame (30) and the soil storage box (17), one end of the telescopic mechanism (32) is hingedly connected to the rear side wall of the soil storage box (17), and the other end of the telescopic mechanism (32) is hingedly connected to the outer wall of the mounting frame (30).

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