A trenching apparatus for excavating a trench adjacent a roadway

Abstract

This invention relates to the field of trench excavation technology and discloses a trench excavation device near a road. It includes two opposing side plates, with a lifting plate movably positioned between the two side plates. A fixed bearing is fixedly mounted on the lifting plate, and a sleeve is fixedly connected to the inner wall of the fixed bearing. An inner rod is movably inserted into the sleeve, and a spiral blade is fixedly mounted on the outer wall of the bottom of the inner rod. Controlling the lowering of the lifting plate can drive a conveying cylinder to descend. The conveying cylinder descends into a previously excavated vertical hole. As the entire device moves, the shovel at the bottom of the conveying cylinder can open the previously excavated vertical hole. The rotation of the conveying roller inside the conveying cylinder can transport the excavated soil, allowing it to be discharged from the discharge cylinder, preventing the excavated soil from accumulating in the trench. Thus, as the entire device moves, it can both periodically excavate vertical holes in front and directly open pre-excavated vertical holes to form a trench.

Description

Technical Field

[0001] This invention relates to the field of trench excavation technology, specifically to a trench excavation device for use near roads. Background Technology

[0002] During road construction, it is often necessary to dig trenches along the roadside to lay facilities such as water pipes, cables, and natural gas pipelines. In the current technology, trenches are generally dug by excavators. However, when excavating trenches along some narrow road sections, the large size of excavators makes it difficult for them to operate, which in turn hinders the excavation of trenches along narrow road sections and delays the work progress.

[0003] To address the aforementioned issues, Chinese Patent Publication No. CN113502863B discloses a straight excavation device for foundation pits in building construction. The device includes a motor, a handle fixedly mounted on the surface of the motor, a drill rod mounted on the lower side of the motor, connecting rods symmetrically connected to the left and right sides of the motor, a sliding tube fixedly mounted on the outer end of the connecting rod, a guide frame sleeved inside the sliding tube, a first helical spring fixedly connected between the sliding tube and the lower end of the guide frame, a base plate fixedly mounted on the lower end of the guide frame, universal wheels evenly mounted on the bottom surface of the base plate, a grip ring fixedly mounted on the upper side of the outer surface of the guide frame, a connecting rope connected to the motor, a support column fixedly connected to the outer end of the connecting rope, a support assembly sleeved on the surface of the support column, and a nut positioned above the support assembly.

[0004] In the aforementioned foundation pit straight-path excavation device, although the excavation of straight paths (trenches) can be achieved through drilling and the thrust of hydraulic cylinders, improving the efficiency of trench excavation, we have found in practical applications that there are still areas for optimization, such as:

[0005] The separate design of the "drilling" and "pushing" sections in the above-mentioned foundation pit straight excavation device requires two operations to excavate the trench, which affects work efficiency and increases labor intensity. At the same time, the above-mentioned foundation pit straight excavation device is also not convenient for cleaning up the excavated soil.

[0006] Based on this, we propose a trench excavation device for use near roads. Summary of the Invention

[0007] (a) Technical problems to be solved

[0008] To address the shortcomings of existing technologies, this invention provides a trench excavation device for roads, which has the advantages of being able to excavate trenches in a single operation, having high work efficiency, and facilitating the cleaning of excavated soil.

[0009] (II) Technical Solution

[0010] To achieve the goals of excavating trenches in a single operation, high work efficiency, and easy cleaning of excavated soil, the present invention provides the following technical solution: a trench excavation device near a road, comprising two side plates arranged opposite each other, the tops of the two side plates being fixedly connected by a connecting plate, each side plate having a movable wheel at its bottom on the opposite side, a lifting plate being movably arranged between the two side plates, a fixed bearing being fixedly arranged on the lifting plate, a sleeve being fixedly connected to the inner wall of the fixed bearing, an inner rod being movably inserted into the sleeve, a spiral blade being fixedly arranged on the outer wall at the bottom of the inner rod, and the top of the inner rod being rotatably connected to the output shaft of a second cylinder through a rotating joint, the second cylinder being fixedly installed on the top of the connecting plate;

[0011] A first driven wheel is also fixedly installed on the sleeve. The outer wall of the first driven wheel is connected to a drive wheel via a first synchronous belt. The drive wheel is rotatably mounted on the top of the lifting plate.

[0012] As a preferred embodiment of the present invention, the lifting plate is fixedly installed at the bottom end of the output shaft of the first cylinder, and the first cylinder is fixedly installed at the top of the connecting plate.

[0013] As a preferred embodiment of the present invention, the outer wall of the inner rod is uniformly provided with splines, the splines are slidably disposed in the groove, and the groove is formed on the inner wall of the sleeve.

[0014] As a preferred embodiment of the present invention, the drive wheel is fixedly mounted on the top end of the drive shaft, the drive shaft is fixedly mounted on the top end of the output shaft of the drive motor, and the drive motor is fixedly mounted on the bottom of the lifting plate.

[0015] As a preferred embodiment of the present invention, a conveying cylinder is also fixedly installed at the bottom of the lifting plate by a fixing frame, and the conveying cylinder is located on the left side of the inner rod and is inclined toward the inner rod;

[0016] The conveying cylinder is equipped with a conveying roller that rotates inside, and a discharge cylinder is connected through the left side of the top of the conveying cylinder.

[0017] As a preferred embodiment of the present invention, a shovel plate is also fixedly installed at the bottom of the conveying cylinder.

[0018] As a preferred embodiment of the present invention, the top end of the conveying roller extends to the outside of the conveying cylinder and is connected to a vertical shaft via a universal joint. A second driven wheel is fixedly installed at the top end of the vertical shaft, and the second driven wheel is connected to the drive wheel via a second synchronous belt.

[0019] As a preferred embodiment of the present invention, the bottom of the lifting plate is further provided with two guide plates fixedly arranged by a connecting rod. The two guide plates are arranged opposite to each other and are located on the front and rear sides of the inner rod, respectively.

[0020] The two guide plates each have a guide slope formed on their opposite sides.

[0021] As a preferred embodiment of the present invention, a bottom column is fixedly installed on the left side of the bottom of the lifting plate, a top shaft is provided at the bottom end of the bottom column, an installation plate is fixedly installed at the bottom end of the top shaft, and two fixed seats are arranged opposite each other on the bottom sides of the installation plate, with a pressure roller rotatably arranged between the two fixed seats.

[0022] As a preferred embodiment of the present invention, a movable plate is fixedly installed at the top end of the top shaft, and the movable plate is movably disposed in the inner groove, which is opened inside the bottom column.

[0023] A spring is also fixedly installed between the movable plate and the inner top wall of the inner groove.

[0024] (III) Beneficial Effects

[0025] Compared with the prior art, the present invention provides a trench excavation device near a road, which has the following advantages:

[0026] 1. This trench excavation equipment near the road is placed at the location where a trench needs to be dug. The drive motor rotates the inner rod and helical blades through transmission, and the second cylinder lowers the inner rod and helical blades. Through the rotation and descent of the inner rod and helical blades, a vertical hole can be drilled in the ground. After the entire equipment is moved a certain distance, the above operation is repeated to drill another vertical hole in the ground. This cycle is repeated to drill a row of vertical holes in the ground, thus forming the basic shape of a trench, which is convenient for trench excavation when it is inconvenient to use an excavator.

[0027] 2. The trench excavation equipment near the road can control the lowering of the lifting plate to drive the conveying cylinder to descend. The conveying cylinder descends into the previously dug vertical hole. As the entire equipment moves, the shovel plate at the bottom of the conveying cylinder can open the previously dug vertical hole. The rotation of the conveying rollers inside the conveying cylinder can transport the excavated soil, allowing the soil to be discharged from the discharge cylinder, preventing the excavated soil from accumulating in the trench. Thus, as the entire equipment moves, it can not only excavate vertical holes at intervals in front, but also directly open the dug vertical holes to form a trench.

[0028] 3. The trench excavation equipment near the road has a pressure roller located inside the trench. As the entire equipment moves, the pressure roller can also roll inside the trench to flatten and compact the soil, making the trench neater and cleaner, and improving the trench excavation effect. Attached Figure Description

[0029] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention;

[0030] Figure 2 This is a cross-sectional view of the overall structure of the present invention;

[0031] Figure 3 This is an enlarged schematic diagram of the sleeve portion of the present invention;

[0032] Figure 4 This is a cross-sectional view of the conveying cylinder portion of the present invention;

[0033] Figure 5 This is an enlarged schematic diagram of the guide plate portion of the present invention;

[0034] Figure 6 For the present invention Figure 2 Enlarged view of point A in the middle;

[0035] Figure 7 This is a cross-sectional view of the base column portion of the present invention;

[0036] Figure 8 This is a schematic diagram showing the vertical hole of the present invention after it has been dug.

[0037] Figure 9 This is a schematic diagram of the vertical hole being open in the present invention.

[0038] In the diagram: 1. Side plate; 2. Connecting plate; 3. Moving wheel; 4. Lifting plate; 5. First cylinder; 6. Fixed bearing; 7. Sleeve; 8. Inner rod; 9. Spiral blade; 10. Rotary joint; 11. Second cylinder; 12. First driven wheel; 13. First synchronous belt; 14. Drive wheel; 15. Drive shaft; 16. Drive motor; 17. Second synchronous belt; 18. Second driven wheel; 19. Vertical shaft; 20. Positioning bearing; 21. Universal joint; 22. Conveying roller; 23. Conveying cylinder; 24. Fixed frame; 25. Shovel plate; 26. Discharge cylinder; 27. Connecting rod; 28. Guide plate; 29. ​​Guide slope; 30. Bottom column; 31. Inner groove; 32. Movable plate; 33. Spring; 34. Top shaft; 35. Mounting plate; 36. Fixed seat; 37. Pressure roller; 38. Vertical hole. Detailed Implementation

[0039] Example 1:

[0040] Please see Figures 1-3 , Figure 6A trench excavation device near a road includes two side plates 1 arranged opposite each other, with the tops of the two side plates 1 fixedly connected by a connecting plate 2. The bottom of the opposite side of the two side plates 1 is provided with a movable wheel 3, which facilitates the movement of the entire device and makes it easier to excavate trenches along its movement path.

[0041] A lifting plate 4 is provided between the two side plates 1 and moves vertically. In this embodiment, the vertical movement of the lifting plate 4 is achieved by the first cylinder 5. Specifically, the lifting plate 4 is fixedly installed at the bottom end of the output shaft of the first cylinder 5, and the first cylinder 5 is fixedly installed at the top of the connecting plate 2. Thus, the extension or retraction of the output shaft of the first cylinder 5 can drive the lifting plate 4 to move down or up.

[0042] In this embodiment, as Figure 2 and Figure 3 As shown, a fixed bearing 6 is fixedly installed on the lifting plate 4, and a sleeve 7 is fixedly connected to the inner wall of the fixed bearing 6. An inner rod 8 is movably inserted into the sleeve 7. In this embodiment, splines are evenly arranged on the outer wall of the inner rod 8, and the splines are slidably arranged in the groove. The groove is opened on the inner wall of the sleeve 7. Through the cooperation of the splines and the groove, the inner rod 8 can move up and down in the sleeve 7, and the sleeve 7 can also drive the inner rod 8 to rotate at all times.

[0043] like Figure 3 As shown, a spiral blade 9 is fixedly installed on the outer wall of the bottom of the inner rod 8. The top of the inner rod 8 is rotatably connected to the output shaft of the second cylinder 11 through a rotary joint 10. The second cylinder 11 is fixedly installed on the top of the connecting plate 2, thereby controlling the extension or retraction of the output shaft of the second cylinder 11. The inner rod 8 can be moved down or up through the rotary joint 10.

[0044] A first driven wheel 12 is also fixedly installed on the sleeve 7. The outer wall of the first driven wheel 12 is connected to a drive wheel 14 via a first synchronous belt 13. The drive wheel 14 is rotatably mounted on the top of the lifting plate 4. Specifically, the drive wheel 14 is fixedly installed on the top of the drive shaft 15. The drive shaft 15 is fixedly installed on the top of the output shaft of the drive motor 16. The drive motor 16 is fixedly installed on the bottom of the lifting plate 4. The drive motor 16 can drive the drive wheel 14 to rotate through the drive shaft 15. The rotation of the drive wheel 14 can drive the first driven wheel 12 to rotate through the first synchronous belt 13, thereby driving the sleeve 7 to rotate.

[0045] In use, the entire device is placed at the location where a trench needs to be dug. Controlling the drive motor 16 causes the inner rod 8 and helical blade 9 to rotate via transmission. Controlling the second cylinder 11 causes the inner rod 8 and helical blade 9 to descend. Through the rotation and descent of the inner rod 8 and helical blade 9, a vertical hole 38 can be drilled in the ground. After moving the entire device a certain distance, the above operation is repeated, and another vertical hole 38 can be drilled in the ground. This cycle continues until a row of vertical holes 38 can be drilled in the ground. Figure 8 As shown, this forms the initial shape of a trench, which facilitates trench excavation when it is inconvenient to use an excavator.

[0046] Example 2:

[0047] Please see Figure 2 , Figure 4 and Figure 9 Based on the first embodiment, a conveying cylinder 23 is also fixedly installed at the bottom of the lifting plate 4 by a fixing frame 24. The conveying cylinder 23 is located on the left side of the inner rod 8 and is inclined towards the inner rod 8. A conveying roller 22 is rotatably installed inside the conveying cylinder 23. A discharge cylinder 26 is connected through the left side of the top of the conveying cylinder 23. A shovel plate 25 is also fixedly installed at the bottom of the conveying cylinder 23.

[0048] The lowering of the lifting plate 4 causes the conveyor cylinder 23 to descend, and the conveyor cylinder 23 descends into the previously dug vertical hole 38. As the entire equipment moves, the shovel plate 25 at the bottom of the conveyor cylinder 23 can open the previously dug vertical hole 38. Figure 9 As shown, the excavated soil can be transported by the rotation of the conveying roller 22 inside the conveying cylinder 23, so that the soil can be discharged from the discharge cylinder 26, preventing the excavated soil from accumulating in the trench. Thus, as the entire equipment moves, vertical holes 38 can be drilled at intervals in front, and the excavated vertical holes 38 can also be directly drilled to form a trench.

[0049] The vertical position of the conveying cylinder 23 is controlled by the lifting plate 4, while the vertical position of the inner rod 8 is controlled by the second cylinder 11. When drilling, the output shaft of the second cylinder 11 retracts to facilitate the movement of the entire equipment, and the output shaft of the second cylinder 11 extends to facilitate drilling the vertical hole 38.

[0050] In this embodiment, the top end of the conveying roller 22 extends to the outside of the conveying cylinder 23 and is connected to a vertical shaft 19 via a universal joint 21. A second driven wheel 18 is fixedly installed at the top end of the vertical shaft 19. The second driven wheel 18 is connected to the drive wheel 14 via a second synchronous belt 17.

[0051] Thus, when the drive motor 16 drives the drive wheel 14 to rotate via the drive shaft 15, the drive wheel 14 can also drive the second driven wheel 18 to rotate via the second synchronous belt 17. The rotation of the second driven wheel 18 drives the vertical shaft 19 to rotate. The rotation of the vertical shaft 19 drives the conveyor roller 22 to rotate via the universal joint 21, so as to achieve the purpose of synchronous rotation of the conveyor roller 22 and the inner rod 8, saving the use of the drive device.

[0052] In this embodiment, a positioning bearing 20 is also fixedly connected to the outer wall of the vertical shaft 19. The positioning bearing 20 is fixedly installed on the lifting plate 4. By setting the positioning bearing 20, the position of the vertical shaft 19 can be fixed, and the rotation of the vertical shaft 19 can be made more stable.

[0053] Example 3:

[0054] Please see Figure 2 , Figure 5 and Figure 7 Based on Embodiments 1 and 2, in this embodiment, the bottom of the lifting plate 4 is further fixedly provided with two guide plates 28 via connecting rods 27, such as... Figure 5 As shown, the two guide plates 28 are arranged opposite each other and are located on the front and rear sides of the inner rod 8 respectively. In addition, a guide slope 29 is formed on the opposite side of the two guide plates 28.

[0055] The guide plate 28 can block the soil excavated when the spiral blade 9 drills holes, keeping the soil on the side of the hole. Subsequently, as the entire equipment moves, the guide slope 29 can push the soil on the side of the hole back into the vertical hole 38. Moreover, since the soil in the vertical hole 38 is loose at this time, it can be easily scooped up by the shovel plate 25 and transported by the conveying roller 22. Thus, it can effectively ensure the cleanliness of both sides of the trench and prevent a large amount of soil from accumulating on both sides of the trench and requiring further cleaning.

[0056] In this embodiment, a bottom column 30 is fixedly installed on the left side of the bottom of the lifting plate 4. A top shaft 34 is provided at the bottom end of the bottom column 30. An installation plate 35 is fixedly installed at the bottom end of the top shaft 34. Two fixed seats 36 are arranged opposite each other on the bottom sides of the installation plate 35. A pressure roller 37 is rotatably arranged between the two fixed seats 36.

[0057] As the lifting plate 4 moves down, the pressure roller 37 is also located in the trench. As the entire equipment moves, the pressure roller 37 can also roll in the trench to flatten and compact the soil in the trench, making the trench more neat and clean, and improving the trench excavation effect.

[0058] like Figure 7As shown, a movable plate 32 is fixedly installed at the top of the top shaft 34. The movable plate 32 is movably disposed in the inner groove 31, which is opened inside the bottom column 30. A spring 33 is also fixedly disposed between the movable plate 32 and the inner top wall of the inner groove 31.

[0059] By setting up the movable plate 32 and the spring 33, the pressure roller 37 and the mounting plate 35 can move upward to compress the spring 33, thereby adapting to the depth of the groove and achieving a better flattening effect.

Claims

1. A trench excavation device for adjacent roads, comprising two side plates (1) arranged opposite each other, the tops of the two side plates (1) being fixedly connected by a connecting plate (2), and each of the two side plates (1) having a movable wheel (3) at the bottom of its opposite side, characterized in that: A lifting plate (4) is movably arranged between the two side plates (1). A fixed bearing (6) is fixedly arranged on the lifting plate (4). A sleeve (7) is fixedly connected to the inner wall of the fixed bearing (6). An inner rod (8) is movably inserted into the sleeve (7). A spiral blade (9) is fixedly arranged on the outer wall of the bottom of the inner rod (8). The top of the inner rod (8) is rotatably connected to the output shaft of the second cylinder (11) through a rotating joint (10). The second cylinder (11) is fixedly installed on the top of the connecting plate (2). A first driven wheel (12) is also fixedly installed on the sleeve (7). The outer wall of the first driven wheel (12) is connected to a drive wheel (14) via a first synchronous belt (13). The drive wheel (14) is rotatably mounted on the top of the lifting plate (4). The bottom of the lifting plate (4) is also fixedly installed with a conveying cylinder (23) by a fixing frame (24). The conveying cylinder (23) is located on the left side of the inner rod (8) and is inclined towards the inner rod (8). The conveying cylinder (23) is rotatably equipped with a conveying roller (22), and a discharge cylinder (26) is connected through the left side of the top end of the conveying cylinder (23). A shovel plate (25) is also fixedly installed at the bottom of the conveying cylinder (23); The top end of the conveying roller (22) extends to the outside of the conveying cylinder (23) and is connected to a vertical shaft (19) via a universal joint (21). A second driven wheel (18) is fixedly installed at the top end of the vertical shaft (19). The second driven wheel (18) is connected to the drive wheel (14) via a second synchronous belt (17).

2. The trench excavation equipment for adjacent roads according to claim 1, characterized in that: The lifting plate (4) is fixedly installed at the bottom end of the output shaft of the first cylinder (5), and the first cylinder (5) is fixedly installed at the top of the connecting plate (2).

3. The trench excavation equipment for adjacent roads according to claim 1, characterized in that: The outer wall of the inner rod (8) is uniformly provided with splines, which are slidably disposed in the groove, and the groove is opened on the inner wall of the sleeve (7).

4. The trench excavation equipment for adjacent roads according to claim 1, characterized in that: The drive wheel (14) is fixedly installed at the top of the drive shaft (15), the drive shaft (15) is fixedly installed at the top of the output shaft of the drive motor (16), and the drive motor (16) is fixedly installed at the bottom of the lifting plate (4).

5. The trench excavation equipment for adjacent roads according to claim 1, characterized in that: The bottom of the lifting plate (4) is also fixedly provided with two guide plates (28) by a connecting rod (27). The two guide plates (28) are arranged opposite to each other and are located on the front and rear sides of the inner rod (8), respectively. Each of the two guide plates (28) has a guide slope (29) formed on its opposite side.

6. The trench excavation equipment near a road according to claim 5, characterized in that: A bottom column (30) is fixedly installed on the left side of the bottom of the lifting plate (4). A top shaft (34) is provided at the bottom end of the bottom column (30). An installation plate (35) is fixedly installed at the bottom end of the top shaft (34). Two fixed seats (36) are arranged opposite each other on the bottom sides of the installation plate (35). A pressure roller (37) is rotatably arranged between the two fixed seats (36).

7. The trench excavation equipment for adjacent roads according to claim 6, characterized in that: A movable plate (32) is fixedly installed at the top of the top shaft (34), and the movable plate (32) is movably arranged in the inner groove (31), which is opened inside the bottom column (30); A spring (33) is also fixedly installed between the movable plate (32) and the inner top wall of the inner groove (31).

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