A sewage treatment engineering excavating device

The hydraulically driven excavating mechanism and gear transmission system solve the problem of the inability to adjust the digging depth of fixed metal plows, enabling flexible depth control and efficient excavation, and making it suitable for sewage treatment projects in complex terrain.

CN224531783UActive Publication Date: 2026-07-21CHINA MCC17 GRP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA MCC17 GRP CO LTD
Filing Date
2025-08-07
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The metal plows of existing excavation devices have a fixed structure, resulting in a fixed digging depth, which cannot meet the needs of deeper excavation. Furthermore, multiple operations are required for deep excavation, reducing digging efficiency.

Method used

The excavating mechanism is driven by hydraulic cylinders. The first hydraulic cylinder adjusts the digging depth, and the second hydraulic cylinder adjusts the ground clearance. Combined with the gear transmission system driven by hydraulic cylinders and motor, the excavating mechanism can achieve flexible lifting and depth control.

Benefits of technology

It enables single-drilling depth control as needed, avoids repeated digging, improves digging efficiency, and maintains equipment stability and digging accuracy in complex terrain.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a kind of excavating devices for sewage treatment engineering, including mobile car platform and the cockpit of top installation, the top of mobile car platform is fixedly installed with first hydraulic cylinder, telescopic end of first hydraulic cylinder is installed with excavating mechanism, excavating mechanism includes mounting bracket, mounting bracket is slidably arranged in mobile car platform, mounting bracket is rotatably connected with mounting roller, mounting roller outside is installed with excavator bucket, the top of mobile car platform is installed with second hydraulic cylinder, the bottom of mobile car platform Both ends are slidably provided with driving wheel assembly, driving wheel assembly is installed in telescopic end of second hydraulic cylinder, by the telescopic end of first hydraulic cylinder directly connecting mounting bracket, the vertical position of excavating mechanism can be adjusted in real time, compared with traditional fixed metal plough, the design allows operator to control single digging depth according to sewage pipeline buried depth or obstacle distribution, avoid repeated excavation or overexcavation.
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Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to an excavation device for wastewater treatment engineering. Background Technology

[0002] Wastewater treatment projects are crucial for protecting water resources and improving the ecological environment. They encompass the entire process from wastewater collection to treatment and reuse. Wastewater treatment involves processing and purifying wastewater containing pollutants, aiming to remove or reduce harmful substances to environmentally acceptable standards to protect water quality and public health. In wastewater treatment projects, excavation is a fundamental and critical step, involving the excavation of drainage pipes, ditches, and other facilities. It is essential for ensuring the smooth progress of the project and the effective operation of the subsequent drainage system.

[0003] Existing excavation devices use a rotating metal plow to dig the soil at the lower end of the ground. The metal plow is a fixed structure with a fixed installation height and a fixed digging depth. When digging deeper, multiple digging operations are required, which reduces digging efficiency and cannot meet the usage requirements. Therefore, in order to solve the above problems, an excavation device for sewage treatment engineering is proposed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an excavation device for wastewater treatment engineering.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A digging device for sewage treatment engineering includes a mobile vehicle platform and a top-mounted driver's cab. A first hydraulic cylinder is fixedly installed on the top of the mobile vehicle platform. A digging mechanism is installed on the telescopic end of the first hydraulic cylinder. The digging mechanism includes a mounting frame, which is slidably disposed inside the mobile vehicle platform. An mounting roller is rotatably connected to the mounting frame, and a bucket is installed on the outside of the mounting roller. The first hydraulic cylinder is used to adjust the digging depth of the digging mechanism.

[0007] A second hydraulic cylinder is installed on the top of the mobile platform, and drive wheel assemblies are slidably arranged at both ends of the bottom of the mobile platform. The drive wheel assemblies are installed on the telescopic ends of the second hydraulic cylinder and can move up and down. The second hydraulic cylinder is used to adjust the height of the excavating mechanism off the ground.

[0008] The above technical solution further includes:

[0009] Protective plates are fixedly installed on both sides of the lower part of the mobile vehicle platform. The output end of the first hydraulic cylinder is fixedly connected to the mounting frame. A first mounting cavity is opened on the inner side of the mobile vehicle platform. Slide grooves are symmetrically opened on both sides of the first mounting cavity. Slide rails are fixedly installed on both sides of the mounting frame located in the slide grooves. The slide rails slide relative to the slide grooves.

[0010] The mounting frame has a drive cavity inside, and the digging mechanism also includes a motor installed in the drive cavity. Three meshing gears are rotatably mounted on the inner side of the drive cavity. The top gear is installed at the output end of the motor, and the bottom gear is fixedly connected to one end of the mounting roller.

[0011] The number of buckets is multiple, and they are arranged in a circumferential array on the outside of the mounting rollers. Each of the multiple mounting rollers is equipped with a metal plow.

[0012] The second hydraulic cylinder is divided into two groups, with two cylinders in each group. The four second hydraulic cylinders are installed at the four corners of the top of the mobile platform.

[0013] The mobile vehicle platform has symmetrical second mounting cavities at both ends. Connecting columns are fixedly installed on both sides of the drive wheel assembly. The telescopic end of the second hydraulic cylinder is fixedly connected to the connecting column, and the connecting column slides relative to the second mounting cavity.

[0014] This utility model has the following beneficial effects:

[0015] In this invention, the vertical position of the excavation mechanism can be adjusted in real time by directly connecting the telescopic end of the first hydraulic cylinder to the mounting frame. Compared with the traditional fixed metal plow, this design allows the operator to control the depth of a single excavation according to the burial depth of the sewage pipe or the distribution of obstacles, thus avoiding repeated excavation or over-excavation.

[0016] In this invention, the mounting frame and the mobile platform are slidably connected, and with the linear drive of the hydraulic cylinder, the excavating mechanism is kept horizontal during the lifting process, preventing the risk of reduced digging accuracy or equipment tipping over due to bucket tilting. It is especially suitable for operation scenarios in narrow ditches or on sloping ground. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a structural diagram of the excavation mechanism of this utility model;

[0019] Figure 3 This diagram shows the connection between the excavating mechanism and the mobile platform of this utility model.

[0020] Figure 4This is a perspective view of the drive wheel assembly of this utility model;

[0021] Figure 5 This diagram shows the connection relationship between the drive wheel assembly and the mobile vehicle platform of this utility model.

[0022] In the diagram: 1. Mobile vehicle platform; 2. Drive wheel assembly; 3. Protective plate; 4. Cabin; 5. First hydraulic cylinder; 6. Second hydraulic cylinder; 7. Excavating mechanism; 8. Mounting frame; 9. Mounting roller; 10. Bucket; 11. Metal plow; 12. First mounting cavity; 13. Slide groove; 14. Drive cavity; 15. Motor; 16. Gear; 17. Slide rail; 18. Connecting column; 19. Second mounting cavity. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example

[0025] like Figures 1-5 As shown, the present invention proposes an excavation device for sewage treatment engineering, including a mobile vehicle platform 1 and a driver's cab 4 installed on the top. The device is characterized in that a first hydraulic cylinder 5 is fixedly installed on the top of the mobile vehicle platform 1, and an excavation mechanism 7 is installed on the telescopic end of the first hydraulic cylinder 5. The excavation mechanism 7 includes a mounting frame 8, which is slidably disposed in the mobile vehicle platform 1. An installation roller 9 is rotatably connected to the mounting frame 8, and a bucket 10 is installed on the outside of the installation roller 9. The first hydraulic cylinder 5 is used to adjust the excavation depth of the excavation mechanism 7.

[0026] A second hydraulic cylinder 6 is installed on the top of the mobile platform 1, and drive wheel assemblies 2 are slidably installed at both ends of the bottom of the mobile platform 1. The drive wheel assemblies 2 are installed on the telescopic ends of the second hydraulic cylinder 6, and the drive wheel assemblies 2 can move up and down. The second hydraulic cylinder 6 is used to adjust the height of the excavating mechanism 7 off the ground.

[0027] Furthermore, the mobile platform 1 serves as the overall support structure, and the top cab 4 is equipped with a control system. The operator coordinates the actions of the first hydraulic cylinder 5 and the second hydraulic cylinder 6 synchronously through the control panel. When digging is required, the second hydraulic cylinder 6 is activated first, and its telescopic end retracts upward to pull the drive wheel assembly 2 at both ends of the bottom. Since the second hydraulic cylinder 6 is installed on the mobile platform 1, the extension of the second hydraulic cylinder 6 lowers the overall height of the vehicle body. By lowering the center of gravity of the vehicle body, the stability of the equipment is enhanced, and the shaking of the vehicle body caused by the force on the bucket 10 during digging is reduced.

[0028] Furthermore, the first hydraulic cylinder 5 is then activated, and its telescopic end pushes the mounting frame 8 to slide vertically down in the guide groove of the mobile platform 1. The mounting frame 8 drives the bucket 10 to move down synchronously through the rotating mounting roller 9. When the bottom of the bucket 10 contacts the ground, the operator adjusts the telescopic speed of the first hydraulic cylinder 5 through the hydraulic control valve in the cab 4, so that the bucket 10 cuts into the soil at a preset angle. The operator continues to control the extension of the first hydraulic cylinder 5, and the mounting frame 8 drives the bucket 10 to continue to press down until the target depth is reached (such as 1.5 to 3 meters for burying sewage pipes). At this time, the second hydraulic cylinder 6 maintains the current compression state to maintain the low center of gravity of the vehicle.

[0029] Furthermore, during continuous excavation, the first hydraulic cylinder 5 retracts to raise the bucket 10 to a safe height, and then the second hydraulic cylinder 6 extends to move the mobile platform 1 upward, raising the overall vehicle body. This makes it easier for the mobile platform 1 to cross obstacles (such as rocks or concrete blocks) or pass over uneven road surfaces via the drive wheel assembly 2, avoiding chassis scraping.

[0030] like Figure 2 - Figure 5 As shown, protective plates 3 are fixedly installed on both sides of the lower part of the mobile platform 1. The output end of the first hydraulic cylinder 5 is fixedly connected to the mounting frame 8. A first mounting cavity 12 is opened on the inner side of the mobile platform 1. Slide grooves 13 are symmetrically opened on both sides of the first mounting cavity 12. Slide rails 17 are fixedly installed on both sides of the mounting frame 8 located in the slide grooves 13. The slide rails 17 and the slide grooves 13 slide relative to each other.

[0031] The mounting frame 8 has a drive chamber 14 inside. The excavation mechanism 7 also includes a motor 15 installed in the drive chamber 14. Three meshing gears 16 are rotatably installed inside the drive chamber 14. The top gear 16 is installed at the output end of the motor 15, and the bottom gear 16 is fixedly connected to one end of the mounting roller 9.

[0032] There are multiple buckets 10, which are arranged in a circumferential array on the outside of the mounting rollers 9, and metal plows 11 are installed on each of the multiple mounting rollers 9.

[0033] The second hydraulic cylinder 6 is divided into two groups, with two cylinders in each group. The four second hydraulic cylinders 6 are installed at the four corners of the top of the mobile platform 1.

[0034] The mobile vehicle platform 1 has symmetrical second mounting cavities 19 at both ends. The drive wheel assembly 2 has connecting columns 18 fixedly installed on both sides. The telescopic end of each second hydraulic cylinder 6 is fixedly connected to the connecting column 18, and the connecting column 18 slides relative to the second mounting cavity 19.

[0035] Furthermore, the first hydraulic cylinder 5 is connected to the mobile platform 1 by screws. The first hydraulic cylinder 5 is located above the excavation mechanism 7. A second mounting cavity 19 is provided at each of the four corners of the lower end of the mobile platform 1. A driver's cab 4 is located above the front end of the mobile platform 1 and is connected to the mobile platform 1 by screws. A metal plow 11 is located at the front end of the bucket 10 and is welded to the bucket 10. The motor 15 is connected to the mounting frame 8 by screws. A gear 16 is provided inside the drive cavity 14. There are three gears 16, which are meshed together. The upper and lower gears 16 are respectively connected to the output end of the motor 15 and one end of the mounting roller 9.

[0036] Furthermore, the first hydraulic cylinder 5 is driven to raise and lower the excavation mechanism 7 according to the excavation depth, and the height of the excavation mechanism 7 is adjusted to match the excavation depth. The motor 15 is turned on to drive the upper gear 16 to rotate. The three gears 16 are meshed and connected. As the upper gear 16 rotates, it drives the mounting roller 9 to rotate, which in turn drives the metal plow 11 to rotate and excavate the soil below. The drive wheel assembly 2 supports the mobile vehicle platform 1. With the help of the drive wheel assembly 2, the excavation device is driven to travel on the ground and excavate the ground along the travel route.

[0037] like Figure 1 and Figure 5 As shown, the second hydraulic cylinder 6 is connected to the mobile platform 1 by screws. The second hydraulic cylinder 6 is located above the connecting column 18, and the telescopic end of the second hydraulic cylinder 6 is connected to the connecting column 18. The second hydraulic cylinder 6 drives the connecting column 18 to move up and down in the second mounting cavity 19. As the connecting column 18 moves up and down, the height of the drive wheel assembly 2 is changed, and the height of the excavating device off the ground is adjusted. The excavating device will not contact the protruding parts of the ground, which makes it convenient for the excavating device to move and excavate on uneven ground.

[0038] like Figure 1 As shown, a protective plate 3 is provided on both sides of the lower part of the mobile vehicle platform 1, and the protective plate 3 is connected to the mobile vehicle platform 1 by screws. The protective plate 3 is located above the drive wheel assembly 2, and the protective plate 3 forms a protective layer above the drive wheel assembly 2 to prevent soil splashing caused by the drive wheel assembly 2.

[0039] In this embodiment, the second hydraulic cylinder 6 is driven to move the connecting column 18 up and down in the second mounting cavity 19 according to the ground height. As the connecting column 18 moves up and down, the height of the drive wheel assembly 2 is changed, and the height of the excavating device above the ground is adjusted appropriately. The first hydraulic cylinder 5 is driven to move the excavating mechanism 7 up and down according to the excavation depth, and the height of the excavating mechanism 7 is adjusted to be consistent with the excavation depth. The motor 15 is turned on to drive the upper gear 16 to rotate. The three gears 16 are meshed and connected. As the upper gear 16 rotates, the mounting roller 9 rotates, which in turn drives the metal plow 11 to rotate and excavate the soil below. With the help of the drive wheel assembly 2, the excavating device travels on the ground and excavates the ground along the travel route.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An excavating device for wastewater treatment engineering, comprising a mobile platform (1) and a top-mounted driver's cab (4), characterized in that, A first hydraulic cylinder (5) is fixedly installed on the top of the mobile vehicle platform (1). A digging mechanism (7) is installed on the telescopic end of the first hydraulic cylinder (5). The digging mechanism (7) includes a mounting frame (8). The mounting frame (8) is slidably disposed inside the mobile vehicle platform (1). An installation roller (9) is rotatably connected to the mounting frame (8). A bucket (10) is installed on the outside of the installation roller (9). The first hydraulic cylinder (5) is used to adjust the digging depth of the digging mechanism (7). The top of the mobile platform (1) is equipped with a second hydraulic cylinder (6), and drive wheel assemblies (2) are slidably arranged at both ends of the bottom of the mobile platform (1). The drive wheel assembly (2) is installed at the telescopic end of the second hydraulic cylinder (6), and the drive wheel assembly (2) can move up and down. The second hydraulic cylinder (6) is used to adjust the height of the excavation mechanism (7) off the ground.

2. The excavating device for wastewater treatment engineering according to claim 1, characterized in that, Protective plates (3) are fixedly installed on both sides of the lower part of the mobile vehicle platform (1). The output end of the first hydraulic cylinder (5) is fixedly connected to the mounting frame (8). A first mounting cavity (12) is opened on the inner side of the mobile vehicle platform (1). Slide grooves (13) are symmetrically opened on both sides of the first mounting cavity (12). Slide rails (17) are fixedly installed on both sides of the mounting frame (8) located in the slide grooves (13). The slide rails (17) and the slide grooves (13) slide relative to each other.

3. The excavating device for sewage treatment engineering according to claim 2, characterized in that, The mounting frame (8) has a drive cavity (14) inside. The excavation mechanism (7) also includes a motor (15) installed in the drive cavity (14). Three meshing gears (16) are rotatably installed on the inner side of the drive cavity (14). The top gear (16) is installed at the output end of the motor (15), and the bottom gear (16) is fixedly connected to one end of the mounting roller (9).

4. The excavating device for wastewater treatment engineering according to claim 3, characterized in that, The number of buckets (10) is multiple, and they are arranged in a circumferential array on the outside of the mounting rollers (9). Each of the multiple mounting rollers (9) is equipped with a metal plow (11).

5. The excavating device for wastewater treatment engineering according to claim 1, characterized in that, The second hydraulic cylinder (6) is divided into two groups, and each group has two cylinders. The four second hydraulic cylinders (6) are installed at the four corners of the top of the mobile vehicle platform (1).

6. The excavating device for wastewater treatment engineering according to claim 1, characterized in that, The mobile vehicle platform (1) has symmetrical second mounting cavities (19) at both ends. The drive wheel assembly (2) has connecting columns (18) fixedly installed on both sides. The telescopic end of the second hydraulic cylinder (6) is fixedly connected to the connecting column (18). The connecting column (18) slides relative to the second mounting cavity (19).