A loss reducing excavation apparatus for upgrading a sewer pipe in a cell

Abstract

The application provides a loss-reducing excavation device for upgrading a community sewer pipeline, and relates to the technical field of underground excavation. The device comprises an excavation device body, a cement concrete scraper, and a cutting blade capable of cutting the ground of a community between the excavation device body and the cement concrete scraper. The cement concrete scraped by the cement concrete scraper can be removed. The device can prevent the cement concrete scraper from continuing to rotate, and can drive the cement concrete scraper to be exactly clamped into the cutting gap of the cement concrete when the excavation device body moves, so as to facilitate the excavation of the surface of the cement concrete while cutting the cement concrete. The first hydraulic push rod is started to drive the transverse breaking plate to move, the transverse breaking plate drives the circular breaking plate to move, and the cement concrete is broken.

Description

Technical Field

[0001] This invention relates to a loss-reduction excavation device, specifically a loss-reduction excavation device for upgrading community sewer pipes, belonging to the field of underground excavation technology. Background Technology

[0002] Underground pipelines are pipes laid underground to transport liquids, gases, or loose solids. Ancient China used underground drainage pipes made of fired clay. During the Ming Dynasty, with Beijing as its capital, extensive use was made of bricks and stone blocks to construct underground drainage pipes, which were approximately 1 meter wide and 2 meters high. Modern underground pipelines come in a wide variety of shapes and cross-sectional forms, including circular, elliptical, semi-elliptical, multi-centered, oval, rectangular (single-hole, double-hole, and multi-hole), and horseshoe-shaped. They are constructed using materials such as steel, cast iron, concrete, reinforced concrete, prestressed concrete, brick, stone, asbestos cement, clay, plastics, and fiberglass (reinforced plastics).

[0003] During use, sewer pipes can suffer damage, requiring excavation for repair. This necessitates the use of specialized sewer pipe excavation equipment to minimize losses during maintenance and upgrades.

[0004] Traditional road excavation equipment has the following problems:

[0005] 1. Generally, a single-head cutting device is used to cut the cement concrete on both sides of the road surface. After the cement concrete is cut, a person follows behind the cutting machine to remove the cement concrete. This is time-consuming, labor-intensive, and relatively troublesome to operate.

[0006] 2. When cutting cement concrete pavement, the required width of the pavement to be excavated varies. Using a single-head cutting device makes it difficult to accurately position the width of the cement pavement to be cut, resulting in poor cutting accuracy. If the cutting area is too large, it can easily lead to increased costs for later pipeline excavation and backfilling. Summary of the Invention

[0007] (a) Technical problems to be solved

[0008] The purpose of this invention is to provide a loss-reducing excavation device for upgrading community drainage pipes in order to solve the above-mentioned problems. This device addresses the issue that in the prior art, the cement concrete on both sides of the road surface is cut, and after the cement concrete is cut, manual labor follows behind the cutting machine to remove the cement concrete, which is time-consuming, labor-intensive, and cumbersome to operate.

[0009] (II) Technical Solution

[0010] To achieve the above objectives, the present invention provides the following technical solution: a loss-reducing excavation device for upgrading sewer pipes in residential areas, comprising an excavation device body and a cement concrete scraper, a cutting blade positioned between the excavation device body and the cement concrete scraper to cut the ground of the residential area, and a data adjustment scale provided on the inner wall of the movable block to position the distance between the two cutting blades, so as to facilitate cutting ground of different widths, thereby reducing losses during excavation, avoiding excessively large areas of ground to prevent high excavation costs and even higher maintenance costs later, and the cement concrete scraper can remove the cement concrete cut from the ground of the residential area, and a circular breaking plate is provided on the outside of the cement concrete scraper to break up the scooped-up cement concrete.

[0011] Preferably, the loss-reducing excavation equipment further includes a limiting slider and a movable block slidably connected to the outside of the limiting slider. The movable block is fixedly connected to one side of the cutting blade, and a circular collar is rotatably connected to the outside of the movable block. The inner wall of the movable block is provided with a data adjustment scale for positioning the limiting slider. A vertical connecting support plate is fixedly connected to the top of the circular collar. Threaded rods are threadedly connected inside the two vertical connecting support plates. A support plate supporting the output shaft and the threaded rods is rotatably connected to the outside of the threaded rods. The output shaft passes through the support plate and is rotatably connected to the support plate. An output shaft is fixedly connected inside the limiting slider. A dual-axis motor is provided at one end of the output shaft, and the output end of the dual-axis motor is fixedly connected to the output shaft. By setting the movable block and the output shaft, the distance between the two cutting blades can be adjusted, thereby enabling the cutting of cement concrete ground of different widths. This allows for cutting the ground according to the actual width of the underground water pipe to be buried, reducing excavation and subsequent backfilling losses.

[0012] Preferably, the loss-reducing excavation equipment further includes a rotating rod that passes through and is rotatably connected to a cement concrete scraper. A transmission gear is fixedly connected to the outside of the rotating rod, and a transmission rack is meshed with one side of the transmission gear. A ratchet is fixedly connected to the outside of the rotating rod, and a pawl is provided on the top of the ratchet. A torsion spring is fixedly connected inside the pawl, and a movable pull rope is fixedly connected to the top of the pawl. By pressing the movable pull rope, the pawl can be rotated, at which point the ratchet loses its limit position. When the transmission gear is subjected to the meshing force of the transmission rack, it can be driven to rotate. The rotation of the transmission gear drives the rotating rod to rotate, thereby driving the water... The cement concrete scraper rotates clockwise, thus maintaining its original position to facilitate cutting and excavating cement concrete pavements of different sizes. The movable rope contains a sliding wheel, with a rotating shaft fixedly connected inside the sliding wheel. A connecting plate is rotatably connected to the outside of the rotating rod, and a support plate is fixedly connected to one side of the connecting plate. The rotating shaft passes through the connecting plate and is rotatably connected to it. The connecting plate supports the rotating rod and allows it to move together with the connecting plate. Furthermore, a pawl limits the ratchet, ensuring the cement concrete scraper can only rotate in one direction, facilitating the excavation of the cut cement concrete.

[0013] Preferably, the loss-reducing excavation equipment includes a transverse breaking plate, which is slidably connected to one side of a cement concrete scraper. A circular breaking plate is fixedly connected inside the transverse breaking plate. A first hydraulic push rod is fixedly connected to one side of the transverse breaking plate. By setting the transverse breaking plate and the circular breaking plate, the excavated cement concrete is broken. When the excavation equipment body moves, it can drive the cement concrete scraper to fit into the cutting gap of the cement concrete, so that while cutting the cement concrete, the surface of the cut cement concrete can be dug out. At this time, the first hydraulic push rod can be activated to drive the transverse breaking plate to move. The movement of the transverse breaking plate drives the movement of the circular breaking plate, which can break up the cement concrete.

[0014] Preferably, a movable tie rod is fixedly connected to one side of the excavation equipment body, a movable device is fixedly connected to the bottom of the excavation equipment body, a connecting block is fixedly connected to one side of the excavation equipment body, and the transmission rack is fixedly connected to one side of the connecting block. The connecting block is used to support the transmission rack, which makes the operation of the transmission rack more stable.

[0015] Preferably, a second hydraulic push rod is fixedly connected to the bottom of the excavation equipment body. The second hydraulic push rod is fixedly connected to the top of the support plate, and the support plate is moved up and down by the second hydraulic push rod.

[0016] Preferably, a limiting telescopic rod is fixedly connected to one side of the support plate. The limiting telescopic rod is fixedly connected to one side of the vertical connecting support plate. The limiting telescopic rod is used to limit the vertical connecting support plate, so that the vertical connecting support plate can move in a straight line.

[0017] Preferably, a support rod is fixedly connected to one side of the connecting plate, and the torsion spring is fixedly connected to the outside of the support rod. The support rod is used to support the torsion spring, which makes the operation of the torsion spring more stable.

[0018] Preferably, the top of the cement concrete scraper has a groove, and the first hydraulic push rod is disposed inside the groove.

[0019] Preferably, the movable block has a groove inside, and the limiting slider is slidably connected to the movable block through the groove. By setting the groove, the movement of the movable block is limited, so that the movable block can be driven to rotate when the limiting slider rotates.

[0020] This invention provides a loss-reduction excavation device for upgrading community sewer pipes, which has the following beneficial effects:

[0021] 1. This is a loss-reducing excavation device for upgrading sewer pipes in residential areas. The rotating rod drives the ratchet to rotate. At this time, the ratchet is limited by the pawl, so that the ratchet can only rotate counterclockwise. When the transmission gear and the transmission rack disengage, the cement concrete scraper can no longer rotate. At this time, when the excavation equipment body moves, it can drive the cement concrete scraper to fit into the cutting gap of the cement concrete, so as to dig out the cement concrete cut on the surface at the same time. At this time, the first hydraulic push rod can be activated to drive the transverse breaking plate to move. The transverse breaking plate moves the circular breaking plate, which can break up the cement concrete.

[0022] 2. This is a loss-reduction excavation device for upgrading sewer pipes in residential areas. The relative movement of the circular collar drives the relative movement of two moving blocks. The relative movement of the moving blocks allows the limit slider to slide along the slide groove. At this time, the distance between the two cutting blades can be adjusted. The distance between the two cutting blades can be positioned by a data adjustment scale set on the inner wall of the moving block, so as to facilitate cutting ground of different widths. This reduces the loss during excavation and avoids cutting too large an area of ​​ground, resulting in high excavation costs and even higher maintenance costs later.

[0023] 3. This type of loss-reducing excavation equipment for upgrading community sewer pipes uses a dual-axis motor to drive the output shaft to rotate. The rotation of the output shaft drives the limit slider to rotate, which in turn drives the moving block to rotate. The rotation of the moving block drives the cutting blade to rotate and cut the ground. At the same time, the second hydraulic push rod is activated to drive the support plate to move downward. The downward movement of the support plate drives the output shaft to move downward, which in turn drives the cutting blade downward to cut the ground. This allows the ground to be cut stably, making it easier to excavate the cement concrete.

[0024] 4. This is a loss-reducing excavation device for upgrading sewer pipes in residential areas. The upward movement of the rotating rod drives the ratchet upward. At this time, the pull rope can be pressed to move the ratchet. When the pull rope is pressed, the ratchet rotates. At this time, the ratchet loses its limit. When the transmission gear is subjected to the meshing force of the transmission rack, it can drive the transmission gear to rotate. The rotation of the transmission gear drives the rotating rod to rotate, thereby driving the cement concrete scraper to rotate clockwise. This allows the cement concrete scraper to maintain its original position, so as to facilitate the cutting and excavation of cement concrete pavements of different sizes. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the circular breaking plate of the present invention;

[0027] Figure 3 This is a schematic diagram of the support plate of the present invention;

[0028] Figure 4 This is a schematic diagram of the transmission rack of the present invention;

[0029] Figure 5 This is a schematic diagram of the ratchet mechanism of the present invention;

[0030] Figure 6 This is a schematic diagram of the structure of the cutting blade of the present invention;

[0031] Figure 7 This is a schematic diagram of the threaded rod of the present invention;

[0032] Figure 8 This is a schematic diagram of the output shaft of the present invention;

[0033] Figure 9 This is a schematic diagram of the structure of the movable block of the present invention;

[0034] Figure 10 This is a schematic diagram of the circular collar structure of the present invention;

[0035] Figure 11 This is a schematic diagram of the pawl structure of the present invention;

[0036] Figure 12 This is a schematic diagram of the structure of the rotating shaft of the present invention;

[0037] Figure 13 This is a schematic diagram of the connecting plate of the present invention.

[0038] In the diagram: 1. The main body of the excavation equipment;

[0039] 2. Cutting blade; 201. Limiting slider; 202. Moving block; 203. Output shaft; 204. Data adjustment scale; 205. Circular collar; 206. Vertical connecting support plate; 207. Threaded rod; 208. Dual-axis motor; 209. Support plate;

[0040] 3. Cement concrete scraper; 301. Rotating rod; 302. Transmission rack; 303. Transmission gear; 304. Ratchet; 305. Pad; 306. Torsion spring; 307. Moving rope; 308. Pulley; 309. Rotating shaft; 310. Connecting plate;

[0041] 4. First hydraulic push rod; 401. Lateral breaking plate; 402. Circular breaking plate;

[0042] 5. Moving device; 6. Moving rod; 7. Connecting block; 8. Second hydraulic push rod; 9. Limiting telescopic rod; 10. Support rod. Detailed Implementation

[0043] This invention provides a loss-reducing excavation device for upgrading community sewer pipes.

[0044] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 and Figure 13The loss-reduction excavation equipment also includes a limiting slider 201 and a movable block 202 slidably connected to the outside of the limiting slider 201. The movable block 202 is fixedly connected to one side of the cutting blade 2. A circular collar 205 is rotatably connected to the outside of the movable block 202. A data adjustment scale 204 for positioning the limiting slider 201 is provided on the inner wall of the movable block 202. A vertical connecting support plate 206 is fixedly connected to the top of the circular collar 205. Threaded rods 207 are threadedly connected inside the two vertical connecting support plates 206. A support plate 209 for supporting the output shaft 203 and the threaded rod 207 is rotatably connected to the outside of the threaded rod 207. 03 passes through the support plate 209 and is rotatably connected to the support plate 209. The output shaft 203 is fixedly connected inside the limiting slider 201. A limiting telescopic rod 9 is fixedly connected to one side of the support plate 209. The limiting telescopic rod 9 is fixedly connected to one side of the vertical connecting support plate 206. The limiting telescopic rod 9 is used to limit the vertical connecting support plate 206, so that the vertical connecting support plate 206 can make linear movement. A support rod 10 is fixedly connected to one side of the connecting plate 310. The torsion spring 306 is fixedly connected to the outside of the support rod 10. The support rod 10 is used to support the torsion spring 306, so that the torsion spring 306 can run more stably.

[0045] Specifically, first, based on the actual underground water pipe layout drawings, the required excavation dimensions are determined. Then, the threaded rod 207 is rotated. This rotation causes the vertical connecting support plate 206 to move relative to it. The relative movement of the vertical connecting support plate 206 causes the circular collar 205 to move relative to it. The relative movement of the circular collar 205 causes the two moving blocks 202 to move relative to each other. The relative movement of the moving blocks 202 allows the limiting slider 201 to slide along the groove. At this point, the distance between the two cutting blades 2 can be adjusted. A data adjustment scale 204 is provided on the inner wall of the moving block 202, allowing the distance between the two cutting blades 2 to be positioned. This facilitates cutting ground of different widths, thereby reducing excavation losses and avoiding excessively large cut areas, which would lead to higher excavation costs and even higher maintenance costs later.

[0046] Please refer to it again. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10A dual-axis motor 208 is provided at one end of the output shaft 203. The output end of the dual-axis motor 208 is fixedly connected to the output shaft 203. By setting the moving block 202 and the output shaft 203, the distance between the two cutting blades 2 can be adjusted, so as to cut cement concrete ground of different widths and sizes. This allows the ground to be cut according to the actual width of the underground water pipe to be buried, reducing the loss of excavation and subsequent backfilling. A second hydraulic push rod 8 is fixedly connected to the bottom of the excavation equipment body 1. The second hydraulic push rod 8 is fixedly connected to the top of the support plate 209. The second hydraulic push rod 8 is used to drive the support plate 209 to move up and down.

[0047] Specifically, when the dual-axis motor 208 is started, it drives the output shaft 203 to rotate. The rotation of the output shaft 203 drives the limit slider 201 to rotate. The rotation of the limit slider 201 drives the moving block 202 to rotate. The rotation of the moving block 202 drives the cutting blade 2 to rotate to cut the ground. At the same time, the second hydraulic push rod 8 is started to drive the support plate 209 to move downward. The downward movement of the support plate 209 drives the output shaft 203 to move downward. The downward movement of the output shaft 203 drives the cutting blade 2 downward to cut the ground, so that the ground can be cut stably, making it easier to excavate the cement concrete of the ground.

[0048] Please refer to it again. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 and Figure 13The equipment includes an excavation device body 1 and a concrete scraper 3, a cutting blade 2 positioned between the excavation device body 1 and the concrete scraper 3 to cut the ground surface of the residential area, and a circular breaking plate 402 located on the outside of the concrete scraper 3 to break up the scraped concrete. The equipment also includes a rotating rod 301 that passes through the concrete scraper 3 and is rotatably connected to it. A transmission gear 303 is fixedly connected to the outside of the rotating rod 301, and a transmission rack 302 is meshed on one side of the transmission gear 303. A ratchet 304 is fixedly connected to the outside of the rotating rod 301, with a pawl 305 at the top of the ratchet 304. A torsion spring 306 is fixedly connected inside the pawl 305, and a movable pull rope 307 is fixedly connected to the top of the pawl 305. Pressing the movable pull rope 307 causes the pawl 305 to rotate, at which point the ratchet 304 loses its rotation. When the transmission gear 303 is subjected to the meshing force of the transmission rack 302, it can drive the transmission gear 303 to rotate. The rotation of the transmission gear 303 drives the rotating rod 301 to rotate, thereby driving the cement concrete scraper 3 to rotate clockwise. This allows the cement concrete scraper 3 to maintain its original position, facilitating the cutting and excavation of cement concrete pavements of different sizes. The movable pull rope 307 is equipped with a sliding wheel 308, and a rotating shaft 309 is fixedly connected inside the sliding wheel 308. A connecting plate 310 is rotatably connected to the outside of the rotating rod 301. A support plate 209 is fixedly connected to one side of the connecting plate 310. The rotating shaft 309 passes through the connecting plate 310 and is rotatably connected to the connecting plate 310. The connecting plate 310 supports the rotating rod 301 and can drive the rotating rod 301 to move together with the connecting plate 310. The ratchet pawl 305 limits the ratchet 304, ensuring that the cement concrete scraper 3 can only rotate in one direction, facilitating the excavation of the cut cement concrete.

[0049] The loss-reduction excavation equipment includes a transverse breaking plate 401, which is slidably connected to one side of the cement concrete scraper 3. A circular breaking plate 402 is fixedly connected inside the transverse breaking plate 401. A first hydraulic push rod 4 is fixedly connected to one side of the transverse breaking plate 401. The excavated cement concrete is crushed by setting the transverse breaking plate 401 and the circular breaking plate 402. A movable tie rod 6 is fixedly connected to one side of the excavation equipment body 1. A moving device 5 is fixedly connected to the bottom of the excavation equipment body 1. A connecting rod is fixedly connected to one side of the excavation equipment body 1. Connecting block 7, the transmission rack 302 is fixedly connected to one side of connecting block 7. The connecting block 7 is used to support the transmission rack 302, so that the transmission rack 302 can run more stably. The top of the cement concrete scraper 3 has a groove, and the first hydraulic push rod 4 is set inside the groove. The moving block 202 has a sliding groove inside. The limiting slider 201 and the moving block 202 are slidably connected through the sliding groove. By setting the sliding groove, the movement of the moving block 202 is limited, so that when the limiting slider 201 rotates, it can drive the moving block 202 to rotate.

[0050] Specifically, when the excavation equipment body 1 moves, pulling the moving rod 6 to one side causes the excavation equipment body 1 to move to one side. This movement of the excavation equipment body 1 to one side causes the second hydraulic push rod 8 to move to one side. The second hydraulic push rod 8 to one side causes the support rod 10 to move to one side. The support rod 10 to one side causes the rotating rod 301 to move to one side. The rotating rod 301 to one side drives the transmission gear 303. Simultaneously, when the second hydraulic push rod 8 moves downward, it can drive the support rod 10 to move downward. The downward movement of the support rod 10 drives the rotating rod 301 to move downward. The downward movement of the rotating rod 301 drives the transmission gear 303 to move downward. At this time, the transmission gear 303 is engaged with the transmission rack 302, which can drive the transmission gear 303 to move downward. When gear 303 rotates, the rotation of transmission gear 303 drives the rotation rod 301 to rotate, and the rotation of rotation rod 301 drives the ratchet 304 to rotate. At this time, the ratchet 304 is limited by the pawl 305, so that the ratchet 304 can only rotate counterclockwise. When the transmission gear 303 disengages from the transmission rack 302, the cement concrete scraper 3 can no longer rotate. At this time, when the excavation equipment body 1 moves, it can drive the cement concrete scraper 3 to fit into the cutting gap of the cement concrete, so that while cutting the cement concrete, the surface of the cut cement concrete can be dug out. At this time, the first hydraulic push rod 4 can be activated to drive the transverse breaking plate 401 to move. The movement of the transverse breaking plate 401 drives the circular breaking plate 402 to move, which can break up the cement concrete.

[0051] Specifically, after the phased ground excavation is completed, the second hydraulic push rod 8 can be activated to move upward. The upward movement of the second hydraulic push rod 8 drives the support plate 209 to move upward, which in turn drives the connecting plate 310 to move upward. The upward movement of the connecting plate 310 drives the rotating rod 301 to move upward, which in turn drives the ratchet 304 to move upward. At this time, the movable pull rope 307 can be pressed. When the movable pull rope 307 is pressed, the pawl 305 will rotate. At this time, the ratchet 304 will lose its limit. When the transmission gear 303 is subjected to the meshing force of the transmission rack 302, the transmission gear 303 will rotate. The rotation of the transmission gear 303 will drive the rotating rod 301 to rotate, thereby driving the cement concrete scraper 3 to rotate clockwise. This allows the cement concrete scraper 3 to maintain its original position, so as to cut and excavate cement concrete pavements of different sizes.

[0052] Working principle: The support rod 10 moves to one side, causing the rotating rod 301 to move to one side. The rotating rod 301 moves to one side, causing the transmission gear 303 to move. At the same time, when the second hydraulic push rod 8 moves downward, it can cause the support rod 10 to move downward. The downward movement of the support rod 10 causes the rotating rod 301 to move downward. The downward movement of the rotating rod 301 causes the transmission gear 303 to move downward. At this time, the transmission gear 303 is engaged with the transmission rack 302, which can drive the transmission gear 303 to rotate. The rotation of the transmission gear 303 drives the rotating rod 301 to rotate. The rotation of the rotating rod 301 drives the ratchet 304 to rotate. At this time, the ratchet 304 is limited by the pawl 305, so that the ratchet 304 can only rotate counterclockwise. After the transmission gear 303 disengages from the transmission rack 302, the cement concrete scraper 3 can no longer rotate. At this time, when the excavation equipment body 1 moves, it can drive the cement concrete scraper 3 to fit into the cutting gap of the cement concrete.

[0053] The dual-axis motor 208 drives the output shaft 203 to rotate, which in turn drives the limit slider 201 to rotate. The limit slider 201 then drives the moving block 202 to rotate, which in turn drives the cutting blade 2 to rotate and cut the ground. At the same time, the second hydraulic push rod 8 is activated to drive the support plate 209 to move downward. The downward movement of the support plate 209 drives the output shaft 203 to move downward, which in turn drives the cutting blade 2 to move downward and cut the ground.

[0054] The upward movement of the connecting plate 310 drives the rotating rod 301 to move upward. The upward movement of the rotating rod 301 drives the ratchet 304 to move upward. At this time, the moving pull rope 307 can be pressed. When the moving pull rope 307 is pressed, the pawl 305 can be rotated. At this time, the ratchet 304 loses its limit. When the transmission gear 303 is subjected to the meshing force of the transmission rack 302, the transmission gear 303 can be driven to rotate. The rotation of the transmission gear 303 drives the rotating rod 301 to rotate, thereby driving the cement concrete scraper 3 to rotate clockwise, so that the position of the cement concrete scraper 3 can be kept in its original position.

[0055] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A loss-reduction excavation device for upgrading community sewer pipes, characterized in that: Includes an excavation equipment body (1) and a cement concrete scraper (3), a cutting blade (2) located between the excavation equipment body (1) and the cement concrete scraper (3) for cutting the ground of the community, a cement concrete scraper (3) for removing the cement concrete cut from the ground of the community, and a circular breaking plate (402) set on the outside of the cement concrete scraper (3) for breaking up the shoveled cement concrete. The loss reduction excavation equipment also includes a limiting slider (201) and a movable block (202) slidably connected to the outside of the limiting slider (201). The movable block (202) is fixedly connected to one side of the cutting blade (2). A circular collar (205) is rotatably connected to the outside of the movable block (202). A data adjustment scale (204) for positioning the limiting slider (201) is provided on the inner wall of the movable block (202). A vertical connecting support plate (206) is fixedly connected to the top of the circular collar (205). Two vertical connecting supports... The plate (206) is internally threaded with a threaded rod (207). The limiting slider (201) is internally fixedly connected with an output shaft (203). The threaded rod (207) is rotatably connected to a support plate (209) that supports the output shaft (203) and the threaded rod (207). The output shaft (203) passes through the support plate (209) and is rotatably connected to the support plate (209). A dual-axis motor (208) is provided at one end of the output shaft (203). The output end of the dual-axis motor (208) is fixedly connected to the output shaft (203). The loss-reduction excavation equipment also includes a rotating rod (301), which passes through the cement concrete scraper (3) and is rotatably connected to it. A transmission gear (303) is fixedly connected to the outside of the rotating rod (301), and a transmission rack (302) is meshed with one side of the transmission gear (303). A ratchet (304) is fixedly connected to the outside of the rotating rod (301), and a pawl (305) is provided on the top of the ratchet (304). A torsion spring (306) is fixedly connected inside the pawl (305), and a torsion spring (306) is fixedly connected to the top of the pawl (305). A movable pull rope (307) is provided with a sliding wheel (308) inside the movable pull rope (307). A rotating shaft (309) is fixedly connected inside the sliding wheel (308). A connecting plate (310) is rotatably connected to the outside of the rotating rod (301). A support plate (209) is fixedly connected to one side of the connecting plate (310). The rotating shaft (309) passes through the connecting plate (310) and is rotatably connected to the connecting plate (310). A support rod (10) is fixedly connected to one side of the connecting plate (310). A torsion spring (306) is fixedly connected to the outside of the support rod (10).

2. The loss-reduction excavation equipment for upgrading community sewer pipes according to claim 1, characterized in that: The loss reduction excavation equipment includes a transverse breaking plate (401), which is slidably connected to one side of a cement concrete scraper (3). A circular breaking plate (402) is fixedly connected inside the transverse breaking plate (401), and a first hydraulic push rod (4) is fixedly connected to one side of the transverse breaking plate (401).

3. The loss-reduction excavation equipment for upgrading community sewer pipes according to claim 1, characterized in that: A movable tie rod (6) is fixedly connected to one side of the excavation equipment body (1), a movable device (5) is fixedly connected to the bottom of the excavation equipment body (1), a connecting block (7) is fixedly connected to one side of the excavation equipment body (1), and the movable block (202) is fixedly connected to one side of the connecting block (7).

4. The loss-reduction excavation equipment for upgrading community sewer pipes according to claim 1, characterized in that: The bottom of the excavation equipment body (1) is fixedly connected to a second hydraulic push rod (8), which is fixedly connected to the top of the support plate (209).

5. The loss-reduction excavation equipment for upgrading community sewer pipes according to claim 1, characterized in that: A limiting telescopic rod (9) is fixedly connected to one side of the support plate (209), and the limiting telescopic rod (9) is fixedly connected to one side of the vertical connecting support plate (206).

6. The loss-reduction excavation equipment for upgrading community sewer pipes according to claim 2, characterized in that: The top of the cement concrete scraper (3) is provided with a groove, and the first hydraulic push rod (4) is set inside the groove.

7. The loss-reduction excavation equipment for upgrading community sewer pipes according to claim 1, characterized in that: The movable block (202) has a sliding groove inside, and the limiting slider (201) and the movable block (202) are slidably connected through the sliding groove.

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