Adjustable underground power pipeline construction ditching device for different grounds

Abstract

The invention provides an adjustable underground electric power pipeline construction ditching device for different grounds, belongs to the technical field of electric power pipeline construction, and solves the technical problems that an existing cable ditcher is single in function, and sand and soil cannot be pushed back through power of the cable ditcher. The adjustable underground power pipeline construction ditching device for the different grounds comprises a ditching machine body, a feeding mechanism is arranged at the front end of the ditching machine body, a soil filling mechanism is arranged at the rear end of the ditching machine body, crawler wheels are connected to the bottom of the ditching machine body through a frame, and the soil filling mechanism comprises a third motor fixed to the side edge of the ditching machine body. The output end of the third motor is fixedly connected with a second rotating shaft, the second rotating shaft is fixedly connected with a connecting piece, a first electric telescopic rod is fixed to the rear end of the connecting piece, a hollow cylinder is fixed to the movable end of the first electric telescopic rod, and a rotating rod is rotationally connected to the inner wall of the hollow cylinder. The soil filling device has the advantages that soil filling work after pipeline burying is conducted, soil adjustment is conducted according to different kinds of soil, and the like.

Description

Technical Field

[0001] The invention belongs to the technical field of power pipeline construction, and relates to a trenching machine, in particular to an adjustable trenching device for underground power pipeline construction on different ground surfaces. Background Art

[0002] The laying of cable pipelines needs to comply with relevant safety regulations and standards. Trenching is a common practice that meets safety requirements. It helps to ensure the stability and safety of cables and reduce potential safety hazards. By trenching and burying the cables underground, it can effectively prevent the cables from being damaged by external factors, such as vehicle running, human damage or the impact of the natural environment. At the same time, the cables in the trench can be better fixed and protected, reducing damage caused by vibration or movement. With the continuous advancement of urban and rural construction, the demand for efficient and accurate trenching equipment is increasing. Compared with manual excavation, cable trenching machines can greatly improve construction efficiency and reduce labor costs.

[0003] After searching, it is found that a Chinese patent document discloses a double-row bulldozer cable trencher for power construction [Application No.: 201910112181.X; Publication No.: CN109763528A]. This double-row bulldozer cable trencher for power construction prevents the excavated sand and mud from falling back into the excavated trench through the horizontal telescopic movement of the bulldozer plate, which can effectively ensure the trench depth required for cable laying.

[0004] Although the double-row bulldozer type cable trencher for power construction disclosed in the patent has the function of preventing the excavated sand and mud from falling back into the excavated trench, the sand and mud excavated by the cable trenching need to be pushed back after the pipeline is laid, which requires manual pushing. The cable trencher has a single function and cannot use the power of the cable trencher to push the sand and mud back. Summary of the invention

[0005] The purpose of the present invention is to address the above-mentioned problems in the existing technology and to propose an adjustable trenching device for underground power pipeline construction on different ground surfaces. The technical problem to be solved by the invention is: how to achieve soil filling after pipeline burial and soil adjustment for different soils.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] The invention relates to an adjustable trenching device for underground power pipeline construction on different grounds, comprising a trenching machine body, a feeding mechanism is arranged at the front end of the trenching machine body, a filling mechanism is arranged at the rear end of the trenching machine body, a crawler wheel is connected to the bottom of the trenching machine body through a frame, and the filling mechanism comprises a third motor fixed to the side of the trenching machine body, an output end of the third motor is fixedly connected to a second rotating shaft, a connecting piece is fixedly connected to the second rotating shaft, a first electric telescopic rod is fixedly connected to the rear end of the connecting piece, a hollow cylinder is fixed to the movable end of the first electric telescopic rod, a rotating rod is rotatably connected to the inner wall of the hollow cylinder, a fixed block is fixed to the rotating rod, a leveling shovel is fixed to the rear end of the fixed block, the rear end of the trenching machine body is rotatably connected to the second electric telescopic rod through a first rotating pair, the movable end of the second electric telescopic rod is rotatably connected to the first sliding block through a second rotating pair, a first sliding bar is vertically penetrated through the top of the first sliding block, second fixing plates are fixed to both ends of the first sliding bar, the rear end of the second fixing plate is fixedly connected to the leveling shovel, and a bulldozer assembly is arranged at the front end of the leveling shovel.

[0008] The working principle of the present invention is as follows: after the trenching machine body has completed trenching for the underground electric wires, the excavated soil is filled into the trench where the power pipeline is buried. Before that, according to different soil conditions, humic acid and bentonite are mixed into the trench through a feeding mechanism to adjust the acidity and alkali, or to improve the physical properties of the soil. First, the third motor is operated, and the third motor drives the second rotating shaft to rotate. The second rotating shaft drives the first electric telescopic rod to rotate through a connecting plate. The fixed block and the leveling shovel are adjusted in height with the rotation of the first electric telescopic rod, so that the leveling shovel contacts the ground. The first electric telescopic rod and the second telescopic rod are operated, and the angle between the leveling shovel and the ground is adjusted by the length difference between the first telescopic rod and the second telescopic rod. The first sliding block slides on the first sliding rod with the movement of the leveling shovel. The first rotating pair and the second rotating pair rotate, and the rotation between the rotating rod and the hollow cylinder adapts to the change in the height and angle of the leveling shovel. After the leveling shovel contacts the ground, during the forward or backward movement of the trenching machine body, the leveling shovel is driven to flatten the soil. At the same time, the filling mechanism is operated to push the soil into the trench. Then, the crawler wheels are used to flatten the soil to achieve trench filling.

[0009] The bulldozer assembly includes a slide rail fixed at the front end of the leveler blade, a double-headed motor is fixed in the center of the inner wall of the slide rail, a lead screw is fixed at the output end of the double-headed motor, a second slider is threadedly connected to the lead screw, and a bulldozer plate is integrally formed on the second slider.

[0010] By adopting the above structure, a double-headed motor is operated to drive the lead screw to rotate. Through the threaded transmission between the second slider and the lead screw and the limiting of the second slider in the slide rail, the left and right opposite or relative movement of the two second sliders is realized. The bulldozer moves with the second slider to push the soil on both sides of the groove into the groove to achieve filling.

[0011] The lead screw and the slide rail are rotatably connected via a bearing.

[0012] With the above structure, when the lead screw rotates, the movable end of the bearing rotates with the lead screw, and the fixed end of the bearing and the slide rail are in a relatively static state, so that the rotation of the lead screw is smoother.

[0013] A horizontal square rod is fixed at the front end of the leveling blade, a vertical square rod is fixed at the front end of the horizontal square rod, a second sliding rod is horizontally penetrated in the left and right directions of the vertical square rod, and the bulldozer is slidably connected to the second sliding rod.

[0014] With the above structure, the bulldozer blade moves within the track defined by the slide rail through one end of the second sliding block, and the other end contacts the second slide bar and slides on the second slide bar, making the movement of the bulldozer blade more stable.

[0015] A triangular steel frame is fixed between the horizontal square rod and the soil leveler as well as between the horizontal square rod and the vertical square rod through bolts.

[0016] With the above structure, the triangular steel frame supports the horizontal square rod and the vertical square rod installed with the second sliding rod, thereby improving the operating stability of the filling mechanism.

[0017] The feeding mechanism includes an installation frame fixed at the bottom of the trencher body, the installation frame is fixedly connected to a first motor, the output end of the first motor is fixedly connected to a first sprocket, a chain is meshed on the first sprocket, a second sprocket is meshed on the chain, the inner wall key of the second sprocket is connected to a first rotating shaft, a rotating cover is fixed on the first rotating shaft, a material box fixedly connected to the trencher body is rotatably connected to the rotating cover, and a feeding hole is opened at the bottom of the material box.

[0018] With the above structure, when powder needs to be added to the soil to adjust the soil state, the first motor is operated to drive the first sprocket to rotate, the second sprocket rotates with the first sprocket through the chain, the first rotating shaft rotates with the second sprocket, and the rotating cover rotates with the first rotating shaft to expose the feeding hole. The powder placed in the material box is shaken out of the feeding hole into the soil due to the bumps during the operation of the trencher body, thereby adjusting the pH or physical properties of the soil to ensure the safe operation and long-term stability of the pipeline in the soil.

[0019] The feeding mechanism also includes a first fixed plate fixed in the center of the top of the material box, a second motor is fixed on the top of the first fixed plate, a partition rotatably connected to the material box is fixed at the output end of the second motor, the inner wall of the material box is divided into two material cavities by the partition, and top covers rotatably connected to the material box are hinged at both left and right ends of the first fixed plate.

[0020] With the above structure, the partition is made of soft silicone rubber and always contacts the inner wall of the material box during rotation, dividing the material box into two material chambers, in which humic acid for adjusting the pH of the soil and bentonite for increasing the water holding capacity and fertility of the soil are placed respectively. The second motor drives the partition to rotate in the material box, so that different materials are aligned with the feeding holes to add materials to the soil according to different requirements. The top cover can also be rotated upward to replace or add different additives to meet the soil requirements for landfilling power pipelines.

[0021] Compared with the prior art, the adjustable trenching device for underground power pipeline construction on different ground surfaces has the following advantages:

[0022] 1. By setting up a bulldozer assembly in the filling mechanism, the power of the trencher body is used to push the soil piled on the edge of the trench into the trench, and the soil is leveled by a leveling shovel, and then the filled soil is compacted by the crawler wheels, which saves manpower and does not require additional filling equipment, saving construction costs. At the same time, the crawler wheels can be operated on more terrains and are flexible.

[0023] 2. By setting the first motor drive, the first sprocket, the second sprocket and the chain drive control rotary cover to open and close the feeding hole, it is possible to select whether to add additives, thereby avoiding waste or excessive addition of additives.

[0024] 3. By setting a second motor to drive the partition to rotate, and the partition divides the internal space of the material box, the material box can be loaded with additives with more functions to meet the needs of different soils for state adjustment, and the type of additives dropped can be replaced during use, which can adapt to more ground surfaces.

[0025] 4. The first slide bar is provided to increase the support force of the bulldozer plate, and the horizontal square bar, vertical square bar and triangular steel frame are added to increase the fixed support of the first slide bar, so that the sliding operation of the filling mechanism is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the present invention.

[0027] Figure 2 It is a structural schematic diagram of the soil filling mechanism in the present invention.

[0028] Figure 3 It is a schematic structural diagram of the first rotating pair part in the present invention.

[0029] Figure 4 It is a structural schematic diagram of the fixed block part in the present invention.

[0030] Figure 5 It is a structural schematic diagram of the soil leveling shovel part of the present invention.

[0031] Figure 6It is a structural schematic diagram of the feeding mechanism part in the present invention.

[0032] Figure 7 It is a structural schematic diagram of the material box part in the present invention.

[0033] Figure 8 It is a schematic structural diagram of the partition part of the present invention.

[0034] In the figure, 1, trencher body; 101, crawler wheel; 2, feeding mechanism; 201, mounting frame; 202, first motor; 203, first sprocket; 204, chain; 205, second sprocket; 206, first rotating shaft; 207, rotating cover; 208, material box; 209, first fixing plate; 210, second motor; 211, partition; 212, top cover; 213, material cavity; 214, feeding hole; 3, filling mechanism; 301, third motor; 302, second rotating shaft; 303, connecting piece; 304, first An electric telescopic rod; 305, a hollow cylinder; 306, a rotating rod; 307, a fixed block; 308, a leveling blade; 309, a first rotating pair; 310, a second electric telescopic rod; 311, a second rotating pair; 312, a first sliding block; 313, a second fixed plate; 314, a first sliding bar; 401, a sliding rail; 402, a double-headed motor; 403, a lead screw; 404, a bearing; 405, a second sliding block; 406, a bulldozer; 407, a horizontal square rod; 408, a triangular steel frame; 409, a vertical square rod; 410, a second sliding bar. DETAILED DESCRIPTION

[0035] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0036] like Figure 1-Figure 8As shown, the present invention is an adjustable trenching device for underground power pipeline construction on different grounds, comprising a trenching machine body 1, a feeding mechanism 2 is arranged at the front end of the trenching machine body 1, a filling mechanism 3 is arranged at the rear end of the trenching machine body 1, a crawler wheel 101 is connected to the bottom of the trenching machine body 1 through a frame, the filling mechanism 3 comprises a third motor 301 fixed to the side of the trenching machine body 1, a second rotating shaft 302 is fixedly connected to the output end of the third motor 301, a connecting member 303 is fixedly connected to the second rotating shaft 302, a first electric telescopic rod 304 is fixed to the rear end of the connecting member 303, a hollow cylinder 305 is fixed to the movable end of the first electric telescopic rod 304, a rotating rod 306 is rotatably connected to the inner wall of the hollow cylinder 305, and the rotating rod 306 A fixed block 307 is fixed on the upper side, and a flattening shovel 308 is fixed on the rear end of the fixed block 307. The rear end of the trenching machine body 1 is rotatably connected to the second electric telescopic rod 310 through the first rotating pair 309. The movable end of the second electric telescopic rod 310 is rotatably connected to the first slider 312 through the second rotating pair 311. A first slide bar 314 is vertically penetrated through the top of the first slider 312. Second fixed plates 313 are fixed at both ends of the first slide bar 314. The rear end of the second fixed plate 313 is fixedly connected to the flattening shovel 308. A bulldozer assembly is arranged at the front end of the flattening shovel 308. In this embodiment, the trenching machine body 1, the third motor 301, the first electric telescopic rod 304, and the second electric telescopic rod 310 have specific structures and working The principles are all existing technologies. The crawler wheels 2 are installed and connected to the trenching machine body 1 through a frame composed of steel and bolts and are controlled by the trenching machine body 1. After the trenching machine body 1 completes the trenching of the underground electric wires, the excavated soil is filled into the trench where the power pipelines are buried. Before that, according to different soil conditions, humic acid and bentonite are mixed into the trench through the feeding mechanism 2 to adjust the acidity and alkali, or to improve the physical properties of the soil. First, the third motor 301 is operated, and the third motor 301 drives the second rotating shaft 302 to rotate. The second rotating shaft 302 drives the first electric telescopic rod 304 to rotate through the connecting plate 303. The fixed block 307 and the leveling shovel 308 rotate with the first electric telescopic rod 304 to adjust the height, so that the leveling shovel 308 is in contact with the ground. The shovel 308 touches the ground, and the first electric telescopic rod 304 and the second telescopic rod 302 are operated. The angle of the leveling shovel 308 and the ground is adjusted by the length difference between the first telescopic rod 304 and the second telescopic rod 302. The first sliding block 312 slides on the first sliding bar 314 as the leveling shovel 308 moves. The first rotating pair 309 and the second rotating pair 311 rotate, and the rotation between the rotating rod 306 and the hollow cylinder 305 adapts to the change in the height and angle of the leveling shovel 308. After the leveling shovel 308 touches the ground, the leveling shovel 308 is driven to level the soil during the forward or backward movement of the trencher body 1. At the same time, the filling mechanism 3 is operated to push the soil into the trench, and then the crawler wheels 101 are used to flatten the soil to fill the trench.

[0037] The bulldozer assembly includes a slide rail 401 fixed to the front end of the leveling blade 308, a double-headed motor 402 is fixed in the center of the inner wall of the slide rail 401, a lead screw 403 is fixed to the output end of the double-headed motor 402, a second slider 405 is threadedly connected to the lead screw 403, and a bulldozer plate 406 is integrally formed on the second slider 405. In this embodiment, the double-headed motor 402 is the prior art, and the double-headed motor 402 is operated to drive the lead screw 403 to rotate. Through the threaded transmission between the second slider 405 and the lead screw 403 and the limiting of the second slider 405 in the slide rail 401, the left and right opposite or relative movement of the two second sliders 405 is realized, and the bulldozer plate 406 moves with the second slider 405 to push the soil on both sides of the groove into the groove to achieve filling.

[0038] The lead screw 403 and the slide rail 401 are rotatably connected via a bearing 404. In this embodiment, when the lead screw 403 rotates, the movable end of the bearing 404 rotates along with the lead screw 403, and the fixed end of the bearing 404 and the slide rail 401 are relatively stationary, making the rotation of the lead screw 403 smoother.

[0039] A horizontal square rod 407 is fixed to the front end of the leveling shovel 308, a vertical square rod 409 is fixed to the front end of the horizontal square rod 407, a second slide rod 410 is horizontally penetrated through the vertical square rod 409 in the left and right directions, and the bulldozer 406 is slidably connected to the second slide rod 410. In this embodiment, the bulldozer 406 moves within the track defined by the slide rail 401 through one end of the second slider 405, and the other end contacts the second slide rod 410, and slides on the second slide rod 410 to make the movement of the bulldozer 406 more stable.

[0040] A triangular steel frame 408 is fixed between the horizontal square rod 407 and the leveling shovel 308 and between the horizontal square rod 407 and the vertical square rod 409 by bolts. In this embodiment, the triangular steel frame 408 supports the horizontal square rod 407 and the vertical square rod 409 installed with the second sliding rod 410, thereby improving the operating stability of the filling mechanism 3.

[0041] The feeding mechanism 2 includes a mounting frame 201 fixed to the bottom of the trenching machine body 1, the mounting frame 201 is fixedly connected to a first motor 202, the output end of the first motor 202 is fixedly connected to a first sprocket 203, the first sprocket 203 is meshed with a chain 204, the chain 204 is meshed with a second sprocket 205, the inner wall key of the second sprocket 205 is connected to a first rotating shaft 206, a rotating cover 207 is fixed to the first rotating shaft 206, a material box 208 fixedly connected to the trenching machine body 1 is rotatably connected to the rotating cover 207, and a feeding hole 214 is provided at the bottom of the material box 208. In this embodiment, the first A motor 202 is a prior art. When powder needs to be added to the soil to adjust the soil state, the first motor 202 is operated to drive the first sprocket 203 to rotate, and the second sprocket 205 rotates with the first sprocket 203 through the chain 204. The first rotating shaft 206 rotates with the second sprocket 205, and the rotating cover 207 rotates with the first rotating shaft 206 to expose the feeding hole 214. The powder placed in the material box 208 is shaken out of the feeding hole 214 into the soil due to the bumps during the operation of the trencher body 1, thereby adjusting the pH or physical properties of the soil to ensure the safe operation and long-term stability of the pipeline in the soil.

[0042] The feeding mechanism 2 also includes a first fixed plate 209 fixed at the top center of the material box 208, a second motor 210 is fixed on the top of the first fixed plate 209, a partition 211 rotatably connected to the material box 208 is fixed at the output end of the second motor 210, the inner wall of the material box 208 is divided into two material chambers 213 by the partition 211, and the left and right ends of the first fixed plate 209 are hinged with a top cover 212 rotatably connected to the material box 208. In this embodiment, the second motor 210 is a prior art and will not be described in detail below. The partition 2 11 is a soft silicone rubber material that always contacts the inner wall of the material box 208 during the rotation process, and divides the material box 208 into two material chambers 213, in which humic acid for adjusting the pH value of the soil and bentonite for increasing the water holding capacity and fertility of the soil are respectively placed. The second motor 210 drives the partition 211 to rotate in the material box 208, so that different materials are aligned with the feeding hole 214 to add materials to the soil according to different requirements. The top cover 212 can also be rotated upward to replace or add different additives to meet the soil requirements for landfilling power pipelines.

[0043] The working principle of the present invention is as follows: after the trenching machine body 1 has completed trenching for the underground electric wires, the excavated soil is filled into the trench where the electric wires are buried. Before that, according to different soil conditions or to improve the physical properties of the soil, when it is necessary to add powder to the soil to adjust the soil state, the first motor 202 is operated to drive the first sprocket 203 to rotate, the second sprocket 205 rotates with the first sprocket 203 through the chain 204, the first rotating shaft 206 rotates with the second sprocket 205, and the rotating cover 207 rotates with the first rotating shaft 206 to expose the feeding hole 214, and the powder placed in the material box 208 is shaken out of the feeding hole 214 into the soil due to the bumps during the operation of the trenching machine body 1, and the first The second motor 210 drives the partition 211 to rotate in the material box 208, so that different materials are aligned with the feeding hole 214 to add materials to the soil according to different needs. The top cover 212 can also be rotated upward to replace or add different additives. First, the third motor 301 is operated, and the third motor 301 drives the second rotating shaft 302 to rotate. The second rotating shaft 302 drives the first electric telescopic rod 304 to rotate through the connecting plate 303. The fixed block 307 and the leveling shovel 308 rotate with the first electric telescopic rod 304 to adjust the height so that the leveling shovel 308 contacts the ground. The first electric telescopic rod 304 and the second telescopic rod 302 are operated. The angle between the leveling shovel 308 and the ground is adjusted by the length difference of the rod 302. The first sliding block 312 slides on the first sliding rod 314 as the leveling shovel 308 moves. The first rotating pair 309 and the second rotating pair 311 rotate, and the rotation between the rotating rod 306 and the hollow cylinder 305 adapts to the change in the height and angle of the leveling shovel 308. After the leveling shovel 308 contacts the ground, the leveling shovel 308 is driven to level the soil during the forward or backward movement of the trencher body 1. The double-headed motor 402 is operated to drive the screw 403 to rotate. When the screw 403 rotates, the movable end of the bearing 404 rotates with the screw 403, and the fixed end of the bearing 404 is relatively stationary with the slide rail 401. Through the threaded transmission between the second slider 405 and the lead screw 403 and the limiting of the second slider 405 in the slide rail 401, the left and right opposite or relative movement of the two second sliders 405 is realized, and the bulldozer 406 moves with the second slider 405 to push the soil on both sides of the groove into the groove. The bulldozer 406 moves within the track limited by the slide rail 401 through one end of the second slider 405, and the other end contacts the second slide bar 410 and slides on the second slide bar 410. The triangular steel frame 408 supports the horizontal square rod 407 and the vertical square rod 409 equipped with the second slide bar 410 to realize soil filling, and then the crawler wheel 101 is used to flatten the soil to realize ditch filling.

[0044] In summary, the filling mechanism and the filling mechanism can realize the filling after the pipeline is buried and the soil conditioning function for different soils.

[0045] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An adjustable trenching device for underground power pipeline construction on different ground surfaces, comprising a trenching machine body (1), characterized in that: The front end of the trenching machine body (1) is provided with a feeding mechanism (2), and the rear end of the trenching machine body (1) is provided with a filling mechanism (3). The bottom of the trenching machine body (1) is connected to a crawler wheel (101) through a frame. The filling mechanism (3) comprises a third motor (301) fixed to the side of the trenching machine body (1). The output end of the third motor (301) is fixedly connected to a second rotating shaft (302). The second rotating shaft (302) is fixedly connected to a connecting piece (303). A first electric telescopic rod (304) is fixed to the rear end of the connecting piece (303). A hollow cylinder (305) is fixed to the movable end of the first electric telescopic rod (304). A rotating rod (306) is rotatably connected to the inner wall of the hollow cylinder (305). A fixed block (307) is fixed to the rotating rod (306). A leveling shovel (308) is fixed to the rear end of the fixed block (307).

2. The adjustable trenching device for underground power line construction for different ground surfaces according to claim 1, characterized in that: The rear end of the trenching machine body (1) is rotatably connected to a second electric telescopic rod (310) via a first rotating pair (309); the movable end of the second electric telescopic rod (310) is rotatably connected to a first sliding block (312) via a second rotating pair (311); a first sliding bar (314) is vertically passed through the top of the first sliding block (312); second fixed plates (313) are fixed to both ends of the first sliding bar (314); the rear end of the second fixed plate (313) is fixedly connected to a leveling shovel (308); and a bulldozer assembly is provided at the front end of the leveling shovel (308).

3. The adjustable trenching device for underground power line construction for different ground surfaces according to claim 2, characterized in that: The bulldozer assembly comprises a slide rail (401) fixed to the front end of a leveler blade (308); a double-headed motor (402) is fixed in the center of the inner wall of the slide rail (401); a lead screw (403) is fixed to the output end of the double-headed motor (402); a second slider (405) is threadedly connected to the lead screw (403); and a bulldozer plate (406) is integrally formed on the second slider (405).

4. The adjustable trenching device for underground power line construction for different ground surfaces according to claim 3, characterized in that: The lead screw (403) and the slide rail (401) are rotatably connected via a bearing (404).

5. The adjustable trenching device for underground power line construction on different ground surfaces according to claim 4, characterized in that: A horizontal square rod (407) is fixed at the front end of the leveling blade (308), a vertical square rod (409) is fixed at the front end of the horizontal square rod (407), a second sliding rod (410) is horizontally penetrated on the vertical square rod (409) in the left and right directions, and the bulldozer (406) is slidably connected to the second sliding rod (410).

6. The adjustable trenching device for underground power line construction on different ground surfaces according to claim 5, characterized in that: A triangular steel frame (408) is fixed between the horizontal square rod (407) and the soil leveling blade (308) and between the horizontal square rod (407) and the vertical square rod (409) by bolts.

7. The adjustable trenching device for underground power line construction on different ground surfaces according to claim 1, characterized in that: The feeding mechanism (2) comprises a mounting frame (201) fixed to the bottom of the trenching machine body (1); a first motor (202) is fixedly connected to the mounting frame (201); a first sprocket (203) is fixedly connected to the output end of the first motor (202); a chain (204) is meshed on the first sprocket (203); a second sprocket (205) is meshed on the chain (204); an inner wall key of the second sprocket (205) is connected to a first rotating shaft (206); and a rotating cover (207) is fixed to the first rotating shaft (206).

8. The adjustable trenching device for underground power line construction on different ground surfaces according to claim 7, characterized in that: The rotating cover (207) is rotatably connected to a material box (208) fixedly connected to the trenching machine body (1), and a feeding hole (214) is provided at the bottom of the material box (208).

9. The adjustable trenching device for underground power line construction on different ground surfaces according to claim 8, characterized in that: The feeding mechanism (2) further comprises a first fixing plate (209) fixed at the center of the top of the material box (208), a second motor (210) is fixed on the top of the first fixing plate (209), and a partition plate (211) rotatably connected to the material box (208) is fixed at the output end of the second motor (210).

10. The adjustable trenching device for underground power line construction on different ground surfaces according to claim 9, characterized in that: The inner wall of the material box (208) is divided into two material chambers (213) by a partition (211), and the left and right ends of the first fixed plate (209) are both hinged with a top cover (212) rotatably connected to the material box (208).

Images