Road earthwork backfill thickness control device in water supply construction

Abstract

The invention provides a road earthwork backfill thickness control device in water supply construction, and relates to the technical field of earthwork backfill thickness control, the road earthwork backfill thickness control device comprises two groups of supporting mechanisms, the two groups of supporting mechanisms are bilaterally symmetrically arranged, each supporting mechanism comprises two front-back symmetrical supporting columns, and a horizontal guide rod is arranged between the two supporting columns; a moving beam is arranged between the two horizontal guide rods, a guide hole is formed in the moving beam in a penetrating mode, the inner wall of the guide hole is slidably connected with the outer walls of the horizontal guide rods, a mounting mechanism is arranged on the moving beam, and a laser range finder is arranged on the mounting mechanism. According to the device, the two supporting mechanisms are erected on the left side and the right side of a backfill area correspondingly, the movable beam moves along the horizontal guide rod, the laser range finder can be driven to move through the mounting mechanism, the laser range finder can measure the actual depth of the backfill area, and the current backfill thickness can be calculated according to the recorded initial depth; therefore, accurate control over the backfilling thickness is achieved, the workload of workers is relieved, and the backfilling efficiency is improved.

Description

Technical Field

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

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

[0003] The Chinese patent with the authorization announcement number CN217150288U discloses a device for controlling the backfill thickness of earth and stone, including a virtual thickness indicator frame, which includes a vertical rod with a backfill virtual thickness indicator scale and a horizontal rod for indicating the virtual thickness of the backfill, the horizontal 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 virtual thickness indicator frame has a base for facilitating its placement on the ground, and multiple virtual thickness indicator frames are arranged at intervals along the periphery of the backfill area. The device has a simple and compact structure, is easy to operate, is convenient for day and night construction, and can achieve accurate control of the virtual thickness of earth and stone.

[0004] The above-mentioned thickness control device needs to arrange multiple virtual thickness indicator frames along the periphery of the backfill area when performing backfill thickness control, which requires a large workload. For trench backfill operations, it is necessary to continuously adjust the position of the virtual thickness indicator frames according to changes in the backfill thickness, resulting in low backfill work efficiency. Summary of the invention

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

[0006] In order to solve the above technical problems, the present invention discloses a device for controlling the thickness of road earth backfill in water supply construction, comprising: two groups of support mechanisms, the two groups of support mechanisms are symmetrically arranged left and right, the support mechanism comprises two support columns symmetrically arranged front and back, a horizontal guide rod is arranged between the two support columns, a movable beam is arranged between the two horizontal guide rods, a guide hole is arranged through the movable beam, the inner wall of the guide hole is slidably connected to the outer wall of the horizontal guide rod, a mounting mechanism is arranged on the movable beam, a laser rangefinder is arranged on the mounting mechanism, and an output end of the laser rangefinder emits a vertical laser beam downward.

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

[0008] Preferably, a support seat is arranged at the lower end of the support column, a mounting seat is arranged at the bottom of the support seat, and moving wheels are arranged on the mounting seat.

[0009] Preferably, a supporting oil cylinder is arranged at the bottom of the supporting seat, and a supporting plate is arranged at the lower end of the supporting oil cylinder.

[0010] Preferably, the mounting mechanism includes a top plate, a side plate 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 ends of the side plates, the lower ends of the side plates are 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 arranged on the lower surface of the bottom plate, the plurality of laser rangefinders are arranged at equal intervals along the length direction of the moving beam, screw holes are arranged in the top plate, bolts are arranged in the screw holes, and the lower ends of the bolts are in contact with 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 rangefinder, 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 on the front side wall of the soil storage box, a soil retaining plate is slidably provided in the sliding hole, one end of the soil retaining plate extends into the soil storage cavity, a limit plate is provided at the front end of the soil retaining plate, the limit plate and the front side wall of the soil storage box are connected by a number of connecting springs, a sliding rod is provided at the rear end of the soil 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, and the driving mechanism is used to drive the sliding rod to slide back and forth in the partition.

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

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

[0014] Preferably, a return port is provided at a lower position of the front side wall of the soil storage box, and the return port is communicated with the interior of the soil storage cavity.

[0015] Preferably, a mounting frame is provided on the rear side wall of the soil storage box, one end of the mounting frame is hingedly connected to the rear side wall of the soil storage box, a soil pressing roller is rotatably provided on the mounting frame away from one end of the soil storage box, a telescopic mechanism is provided between the mounting 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 mounting frame.

[0016] The technical solution of the present invention has the following advantages: the present invention provides a device for controlling the thickness of earthwork backfill in road water supply construction, which relates to the technical field of earthwork backfill thickness control, and includes two groups of support mechanisms, which are symmetrically arranged on the left and right sides, and the support mechanisms include two support columns that are symmetrical in front and back, a horizontal guide rod is arranged between the two support columns, a movable beam is arranged between the two horizontal guide rods, a guide hole is arranged through the movable beam, the inner wall of the guide hole is slidably connected with the outer wall of the horizontal guide rod, a mounting mechanism is arranged on the movable beam, and a laser rangefinder is arranged on the mounting mechanism. In the present invention, the two groups of support mechanisms are respectively set up on the left and right sides of the backfill area, and the movement of the movable beam along the horizontal guide rod can drive the movement of the laser rangefinder through the mounting mechanism, and the laser rangefinder can measure the actual depth of the backfill area by emitting a vertical laser beam, and the current backfill thickness can be calculated by recording the initial depth, thereby realizing the precise control of the backfill thickness, and the above-mentioned thickness control device does not need to be set up in multiple in 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 description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the devices particularly pointed out in the written description and the drawings of the description.

[0018] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

[0022] Figure 3 For the present invention Figure 2 A magnified view of the structure at center;

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

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

[0025] Figure 6 For the present invention Figure 5The local structure section view at the middle BB;

[0026] Figure 7 For the present invention Figure 5 Cross-sectional view of the local structure at CC.

[0027] In the figure: 1. support column; 2. horizontal guide rod; 3. moving beam; 4. laser rangefinder; 5. screw; 6. forward and reverse motor; 7. support seat; 8. mounting seat; 9. moving wheel; 10. supporting cylinder; 11. supporting plate; 12. top plate; 13. side plate; 14. bottom plate; 15. bolt; 16. lifting mechanism; 17. soil storage box; 18. partition; 19. soil storage cavity; 20. power cavity; 21. retaining plate; 22. limit plate; 23. connecting spring; 24. sliding rod; 25. driving motor; 26. rotating shaft; 27. first cam; 28. scraper 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. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0029] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory 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] Example 1

[0031] The embodiment of the present invention provides a device for controlling the thickness of road earth backfill in water supply construction, such as Figure 1-Figure 7As shown, it includes: two groups of support mechanisms, the two groups of support mechanisms are symmetrically arranged on the left and right, the support mechanism includes two support columns 1 that are symmetrical in 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.

[0032] The working principle and beneficial effects of the above technical solution are as follows: when performing earth backfilling operations, taking the trench as an example, two groups of support mechanisms are first arranged on the left and right sides of the upper end of the trench, and then multiple installation mechanisms are installed on the moving beam 3. Multiple laser rangefinders 4 are arranged on the installation mechanisms. The laser rangefinder 4 is first used to measure the initial depth of the trench, and then layered filling is performed. The laser rangefinder 4 is moved above the backfilling position to measure the actual depth of the current backfilling position. The difference between the initial depth and the actual depth is the backfill thickness of the current backfilling position. The position of the laser rangefinder 4 can be adjusted by controlling the moving beam 3 to slide along the horizontal guide rod 2, thereby measuring the backfill thickness of the next backfilling position. Then, based on the calculated backfill thickness, corresponding backfill soil can be added, thereby achieving precise control of the backfill thickness. The above thickness control device does not need to be provided with multiple devices during the backfilling work, thereby reducing the workload of the staff, and does not need to continuously adjust the position of the support mechanism as the backfill thickness changes, thereby improving the backfilling efficiency.

[0033] Example 2

[0034] On the basis of the above-mentioned embodiment 1, Figure 1 As shown, 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 both ends of the screw rod 5 are rotatably connected to the support columns 1. 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 threadedly connected to 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 5 to rotate, and the rotation of the screw 5 can drive the movable beam 3 to move along the horizontal guide rod 2, thereby automatically adjusting the position of the laser rangefinder 4, so that the laser rangefinder 4 can measure the thickness of different backfill positions in the backfill area, further reducing the labor intensity of the staff.

[0036] Example 3

[0037] On the basis of Example 1 or 2, Figure 2 , Figure 3 As shown, 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;

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

[0039] The working principle and beneficial effects of the above technical solution are as follows: a support seat 7 is set at the lower end of the support column 1. When the support mechanism is arranged, the support cylinder 10 is in a retracted state. At this time, the moving wheel 9 is in contact with 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. There is no need for the staff to carry the thickness control device, which further reduces the workload of the staff. When the moving beam 3 moves to above the backfill area, the support column 1 stops moving, and then the support cylinder 10 is controlled to extend, and the support plate 11 gradually contacts the ground, and then the extension length of the support cylinder 10 is fine-tuned until the horizontal guide rod 2 is adjusted to a horizontal level through the spirit level, thereby ensuring the accuracy of the backfill thickness control.

[0040] Example 4

[0041] On the basis of any one of Examples 1-3, Figure 1 , Figure 4 As shown, the mounting mechanism includes 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, and 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, and 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 top plate 12 and the front end of the bottom plate 14, and the top plate 12 can be fixed on the moving beam 3 by the bolts 15, thereby improving the stability of the laser rangefinder 4; there are openings at the rear end of the top plate 12 and the rear end of the bottom plate 14, which are convenient for the disassembly and installation of the installation mechanism, thereby improving the disassembly and assembly efficiency of the installation mechanism; multiple installation mechanisms can be provided according to the width of the backfill area, thereby ensuring that multiple installation mechanisms move synchronously under the drive of 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] Example 5

[0044] On the basis of Example 4, Figure 4 , Figure 5As shown, a lifting mechanism 16 is arranged on the lower surface of the bottom plate 14, and 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, and 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, and a soil retaining plate 21 is slidably arranged in the sliding hole. One end of the soil retaining plate 21 extends into the soil storage cavity 19. A limiting plate 22 is arranged at the front end of the soil 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 arranged at the rear end of the soil 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.

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

[0046] The working principle and beneficial effects of the above technical solution are as follows: a lifting mechanism 16 is arranged on the lower surface of the bottom plate 14, and 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 cavity 19 of the soil storage box 17. When a small amount of backfill soil needs to be laid in the backfill area, the soil storage box 17 is first lowered to a preset position, and then the driving motor 25 is started. The rotation of the driving motor 25 can drive the rotating shaft 26 to rotate, and the rotation of the rotating shaft 26 drives the first cam 27 to rotate. The first cam 27 contacts the sliding rod 24 and drives the sliding rod 24 to slide back and forth in the partition 18. When When the sliding rod 24 slides forward, the sliding rod 24 drives the retaining plate 21 to slide forward, and the retaining plate 21 drives the limiting plate 22 to move forward, the connecting spring 23 is stretched, and the retaining plate 21 is separated from the partition 18, and the backfill soil on the retaining plate 21 can flow downward, thereby being spread in the backfill position. When the raised position of the first cam 27 is gradually separated 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 a small amount of backfill soil and intermittent spreading, preventing the backfill soil from being too thick, and further improving the accuracy of backfill thickness control.

[0047] Example 6

[0048] On the basis of Example 5, Figure 5 As shown, a scraper plate 28 is provided on the front side wall of the lower end of the soil storage box 17, and the front side wall of the scraper plate 28 is provided as an arc surface;

[0049] A return port 29 is provided at a 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 .

[0050] The working principle and beneficial effects of the above technical solution are as follows: when backfilling soil, the soil storage box 17 is controlled to move downward by the lifting mechanism 16, so that the difference between the initial depth and the actual depth measured by the laser rangefinder 4 is equal to the target backfill thickness. At this time, the movement of the movable beam 3 drives 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 scraper plate 28 to move. The length of the scraper plate 28 can be set according to the width of the backfill area. During the movement of the scraper plate 28, the backfill soil higher than the target backfill thickness can be scraped off, and part of the scraped backfill soil returns to the soil storage cavity 19 through the return port 29, and falls again from the lower end of the soil storage cavity 19 to spread the backfill position. By setting the scraper plate 28, the backfill soil higher than the target backfill thickness can be removed, so that the backfill thickness control is more accurate, and the backfill thickness at some positions is prevented from being greater than the target backfill thickness.

[0051] Example 7

[0052] On the basis of Example 5, Figure 4 As shown, a mounting frame 30 is provided 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 provided on one end of the mounting frame 30 away from the soil storage box 17, a telescopic mechanism 32 is provided 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.

[0053] The working principle and beneficial effects of the above technical solution are as follows: the telescopic mechanism 32 can use an electric telescopic rod. The telescopic mechanism 32 can drive the mounting frame 30 to rotate with the hinged position with the soil storage box 17 as the center, thereby adjusting the height of the soil pressing roller 31 so that the height of the soil pressing roller 31 is consistent with the target backfill thickness. After the backfill soil in the soil storage box 17 is spread to the backfill position, the movable beam 3 drives the mounting mechanism to move, and the mounting mechanism drives the soil storage box 17 to move through the lifting mechanism 16. The soil storage box 17 drives the mounting frame 30 to move, and the mounting frame 30 drives the soil pressing roller 31 to move. The soil pressing roller 31 can flatten the backfill soil flowing out of the soil storage cavity 19, thereby realizing the spreading of a small amount of backfill soil. Moreover, compared with manual spreading, it can more accurately control the backfill thickness, further improving the accuracy of backfill thickness control.

[0054] Example 8

[0055] On the basis of Example 5, Figure 5-Figure 7As shown, a moving block 33 is slidably arranged on the bottom wall of the power chamber 20, and the moving block 33 is in the shape of an isosceles triangle. Guide slopes 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 the end of the moving block 33 close to the partition 18, and a compression spring 35 is arranged on the end of the moving block 33 close to the partition 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 contacts the side of the driving plate 34 away from the partition 18. Two slide grooves are arranged on the bottom wall of the soil storage box 17, and the two slide grooves are symmetrical about the center line of the moving block 33. The slide grooves are aligned with the power chamber 20 is internally connected, a moving rod 37 is set in the slide groove, the moving rod 37 slides left and right along the length direction of the slide groove, the two moving rods 37 are connected by a reset spring 38, a roller 39 is horizontally set on the upper end of the moving rod 37, the roller 39 contacts the guide inclined surface of the moving block 33, the lower end of the moving rod 37 extends to the bottom of the soil storage box 17 and a leveling block 40 is set, the front end of the leveling block 40 extends to the bottom of the soil storage cavity 19, the two leveling blocks 40 are close to each other. The upper end is set with a first chamfer, and the upper end of the leveling block 40 is away from the first chamfer. The side of the first chamfer.

[0056] The working principle and beneficial effects of the above technical solution are as follows: the second cam 36 and the first cam 27 are raised in opposite directions. When the raised end of the first cam 27 contacts the sliding rod 24, the raised end of the second cam 36 separates from the driving plate 34, and the backfill soil first flows to the backfill position through the lower end of the soil storage cavity 19, and then the raised end of the first cam 27 gradually separates from the sliding rod 24, and the raised end of the second cam 36 gradually contacts the driving plate 34, and the second cam 36 drives the driving plate 34 to move toward the direction close to the partition 18 through the raised end, and the driving plate 34 drives the moving block 33 to move toward the direction close to the partition 18, the compression spring 35 is compressed, and the roller 39 contacts the guide 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 guide inclined surface, and the roller 39 drives the moving rod 37 to slide in the slide groove, the reset spring 38 is gradually stretched, and the moving rod 37 drives the leveling block 40 to slide above the backfill position, and the leveling block 40 can move the backfill soil that has flowed down The soil is flattened, and the lower surface height of the leveling block 40 is higher than the lowermost height of the soil pressing roller 31. When the soil pressing roller 31 presses against the flattened backfill soil, the soil pressing roller 31 can apply pressure evenly, thereby achieving a better compaction effect. At the same time, the flattened soil is also more susceptible to the action of the soil pressing roller 31, thereby improving the compaction efficiency. The backfill soil is flattened by the leveling block 40 and compacted by the soil pressing roller 31, thereby making it easier to control the backfill thickness and improving the efficiency of the backfill work. A second chamfer is provided at the upper end of the leveling block 40, which can The backfill soil can flow smoothly to the backfill position. By setting the 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 dead angle of backfill soil and improving the backfill effect. When the raised end of the second cam 36 is separated from the drive plate 34, under the elastic force of the compression spring 35, the two leveling blocks 40 move closer to each other and re-contact one side, which is convenient for the next small amount of backfill soil paving operation.

[0057] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0058] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, 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 the applications listed in the specification and the implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations 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 arranged symmetrically in left and right directions. The support mechanisms include two support columns (1) that are symmetrical in front and back directions. 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. The output end of the laser rangefinder (4) emits a vertical laser beam downward.

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 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).

6. A device for controlling the thickness of road earth backfill during water supply construction according to claim 5, characterized in that: 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).

7. A device for controlling the thickness of road earth backfill during water supply construction according to claim 6, 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).

8. The device for controlling the thickness of road earth backfill during water supply construction according to claim 6, 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.

9. A device for controlling the thickness of road earth backfill during water supply construction according to claim 8, 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).

10. The device for controlling the thickness of road earth backfill during water supply construction according to claim 6, 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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