Groove excavation device capable of controlling excavation depth and slope ratio
By designing a trenching device that includes a main excavator bucket and an adjustable side excavator bucket, the problem of rapid trenching construction for pipeline excavation in the existing technology has been solved, and precise control of trench depth and slope ratio has been achieved, thereby improving construction efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CCCC TDC ENVIRONMENTAL ENG
- Filing Date
- 2025-04-15
- Publication Date
- 2026-05-15
AI Technical Summary
In existing technologies, trenching for pipelines is difficult to quickly form trenches that meet design requirements, and it is time-consuming and labor-intensive.
Design a trenching device that includes a main bucket and an adjustable side bucket. The device achieves precise control of trench depth and slope ratio through angle adjustment bolts and depth limiting levers, and enables rapid trenching by combining the operation of the excavator arm.
It enables the rapid formation of trenches that meet design requirements, saving manpower and shortening the construction period.
Smart Images

Figure CN224243984U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a trench excavation device that can control the excavation depth and slope ratio. Background Technology
[0002] Currently, in pipeline trench excavation, ordinary excavators are typically used. These excavators require multiple excavations, and after the initial excavation, the slopes are repaired and the excavation depth is controlled with the assistance of manual surveying to achieve the designed trench depth and slope ratio. The aforementioned trench excavation equipment not only struggles to quickly create trenches that meet design requirements but is also time-consuming and labor-intensive.
[0003] In summary, it is necessary to develop and design a trench excavation device that can control the excavation depth and slope ratio in order to solve the aforementioned technical problems. Utility Model Content
[0004] The purpose of this invention is to provide a trench excavation device that can control the excavation depth and slope ratio. It can set the trench excavation depth and slope ratio, and quickly form a trench that meets the design requirements during the excavation construction after setting, saving manpower and shortening the construction period.
[0005] The technical solution adopted by this utility model is as follows: a trenching device that can control the excavation depth and slope ratio, including a main bucket, a connecting assembly for connecting with the excavator arm is installed on the top of the main bucket, and adjustable side buckets are provided on the left and right sides of the main bucket. The adjustable side buckets include a back plate and a side plate located outside the back plate. The bottom edge of the side plate is hinged to the bottom of the side wall of the main bucket. The back plate is located at the rear of the rear wall of the main bucket. Multiple connecting holes are provided on the inner edge of the back plate. Multiple arc-shaped angle adjustment holes are provided at corresponding positions on the rear wall of the main bucket. Angle adjustment bolts are provided in the connecting holes and angle adjustment holes. Multiple sets of depth adjustment holes are provided on the left and right sides of the main bucket. It also includes two horizontally placed depth limiting bars. The root of the depth limiting bars is fixedly connected to the side wall of the main bucket by depth adjustment bolts.
[0006] Preferably, a strip-shaped hole is provided in the middle of the side plate of the adjustable side bucket, and the depth limiting bar extends outward from the strip-shaped hole on this side.
[0007] Preferably, a plurality of tooth seats are provided on the front part of the bottom wall of the main bucket, and digging teeth are installed on each tooth seat.
[0008] Preferably, the connecting assembly includes two opposing support plates fixed on both sides of the top of the main bucket, with two sets of front and rear axle seats on the two support plates, the excavator arm located between the two support plates, and an assembly pin passing through the pin hole at the end of the axle seat and the end of the excavator arm, and the end of the assembly pin being fixedly connected to the axle seat by an assembly bolt.
[0009] Preferably, a top reinforcing connecting plate is installed and fixed on the top of the main bucket, the rear edge of the top reinforcing connecting plate is fixedly connected to the top edge of the rear wall of the main bucket, the end edge of the top reinforcing connecting plate is fixedly connected to the inner wall of the two support plates, and reinforcing ribs are installed between the top of the left and right side walls of the main bucket and the end of the top reinforcing connecting plate.
[0010] The advantages and positive effects of this utility model are:
[0011] This invention provides a trenching device that controls the excavation depth and slope ratio. It is a bucket device mounted on an excavator arm, specifically designed for trench excavation at different depths and slope ratios. Compared to existing fixed bucket devices, the main body of this trenching device consists of a main bucket and two adjustable side buckets located on the left and right sides and hinged to the main bucket at the bottom. By providing arc-shaped angle adjustment holes on the rear wall of the main bucket and fixing the main bucket to the adjustable side buckets using angle adjustment bolts, the two adjustable side buckets can be extended outwards to different angles, thus ensuring the excavated trench has the required slope ratio. By installing adjustable depth limit bars on the left and right sides of the main bucket, the trench excavation depth can be set. Therefore, this trenching device allows for setting the trench excavation depth and slope ratio, enabling rapid formation of trenches that meet design requirements during excavation, saving manpower and shortening the construction period. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0013] Figure 2 This is a side view of the main body of the present invention.
[0014] Figure 3 yes Figure 1 A schematic diagram of the main structure of the adjustable side bucket.
[0015] In the picture:
[0016] 1. Adjustable side bucket; 1-1. Side plate; 1-2. Back plate; 1-3. Connecting hole; 1-4. Strip hole; 2. Depth limiting bar; 3. Main bucket; 4. Digging teeth; 5. Hinge; 6. Angle adjusting bolt; 7. Angle adjusting hole; 8. Reinforcing rib plate; 9. Support plate; 10. Assembly pin; 11. Shaft seat; 12. Top reinforcing connecting plate; 13. Excavator arm; 14. Trench; 15. Depth adjusting hole; 16. Assembly bolt; 17. Depth adjusting bolt. Detailed Implementation
[0017] To further understand the invention content, features and effects of this utility model, the following embodiments are provided in detail.
[0018] Please see Figure 1 , Figure 2 and Figure 3 The present invention relates to a trenching device with controllable excavation depth and slope ratio, comprising a main bucket 3, on the top of which a connecting assembly for connecting to an excavator arm 13 is installed. Figure 2 As shown, the main bucket 3 is generally rectangular in shape and is composed of a left side wall, a right side wall, a rear wall and a bottom wall. In this embodiment, in order to improve the excavation capacity, multiple tooth seats are provided on the front part of the bottom wall of the main bucket 3, and digging teeth 4 are installed on each tooth seat. The digging teeth 4 are fixedly connected to the tooth seats with bolts and are replaced when the digging teeth 4 are excessively worn.
[0019] In this embodiment, the connecting assembly includes two opposing support plates 9 fixedly mounted on both sides of the top of the main bucket 3. The lower parts of the two support plates 9 are welded and fixed to the top of the left and right side walls of the main bucket 3. Two sets of front and rear bearing seats 11 are provided on the two support plates 9. The excavator arm 13 is located between the two support plates 9. Assembly pins 10 are inserted into the pin holes at the ends of the bearing seats 11 and the excavator arm 13. The ends of the assembly pins 10 are fixedly connected to the bearing seats 11 by assembly bolts 16. When it is necessary to remove this trenching device from the excavator arm 13, the assembly bolts 16 need to be removed, and the front and rear assembly pins 10 can be pulled out, thus disconnecting the front end of the excavator arm 13 from the left and right support plates 9.
[0020] In this embodiment, a top reinforcing connecting plate 12 is fixedly installed on the top of the main bucket 3. The rear edge of the top reinforcing connecting plate 12 is fixedly connected to the top edge of the rear wall of the main bucket 3, and the end edge of the top reinforcing connecting plate 12 is fixedly connected to the inner wall of the two support plates 9. Reinforcing ribs 8 are installed between the top of the left and right side walls of the main bucket 3 and the end of the top reinforcing connecting plate 12. The function of setting the top reinforcing connecting plate 12 and the reinforcing ribs 8 is to improve the structural strength of the entire device.
[0021] Adjustable side buckets 1 are provided on the left and right sides of the main bucket 3. The adjustable side bucket 1 includes a back plate 1-2 and a side plate 1-1 located outside the back plate 1-2. The bottom edge of the side plate 1-1 is hinged to the bottom of the side wall of the main bucket 3 by a hinge 5. The back plate 1-2 is located at the rear of the rear wall of the main bucket 3. Therefore, the adjustable bucket 1 can tilt and rotate outward or inward around the bottom hinge 5. During excavation, the side plate 1-1 cuts the side wall of the trench. Therefore, the slope ratio is determined by the outward unfolding angle of the side plate 1-1. When it is necessary to excavate trenches with different slope ratios, the outward unfolding angle of the adjustable side bucket 1 can be adjusted first.
[0022] like Figure 3 As shown, the inner edge of the back plate 1-2 is provided with multiple connecting holes 1-3, and the corresponding position on the rear wall of the main bucket 3 is provided with multiple arc-shaped angle adjustment holes 7. The arc of the angle adjustment holes 7 is centered on the hinge 5. Angle adjustment bolts 6 are provided in the connecting holes 1-3 and the angle adjustment holes 7. As shown in the figure, there are two connecting holes 1-3, one upper and one lower. Correspondingly, there are two angle adjustment holes 7 on the side of the rear wall of the main bucket 3. When it is necessary to adjust the angle of the adjustable side bucket 1, first loosen the angle adjustment bolts 6, adjust the adjustable side bucket 1 to the appropriate angle, and then tighten the angle adjustment bolts 6.
[0023] Multiple sets of depth adjustment holes 15 are provided on the left and right sides of the main bucket 3, and two horizontally placed depth limiting bars 2 are also included. The base of the depth limiting bars 2 is fixedly connected to the side wall of the main bucket 3 by depth adjustment bolts 17. Specifically, as shown in the figure... Figure 3 As shown, the depth limiting bar 2 is a flat solid metal rod or hollow metal tube with a base plate welded to its base. Mounting holes are located at the four corners of the base plate, corresponding to a set of depth adjustment holes 5 and secured with four depth adjustment bolts 17. The principle of depth limiting is as follows: when the trenching device excavates to form a trench 14, it cannot continue excavating when the two depth limiting bars 2 contact the ground on both sides of the trench 14, thus limiting the depth of the trench 14. The excavation depth is set by installing the two depth limiting bars 2 at different heights on the main bucket 3.
[0024] In this embodiment, a strip hole 1-4 is provided in the middle of the side plate 1-1 of the adjustable side excavator bucket 1, and the depth limiting bar 2 protrudes outward from the strip hole 1-4 on this side. The function of this structure is: when adjusting the angle of the adjustable side excavator bucket 1 as it unfolds outward, since the depth limiting bar 2 is located in the strip hole 1-4 on the side plate 1-1, the angle adjustment of the adjustable side excavator bucket 1 will not be restricted by the depth limiting bar 2. Similarly, when it is necessary to adjust the height of the depth limiting bar 2, since the depth limiting bar 2 is located in the strip hole 1-4 on the side plate 1-1, it can be directly raised and lowered without being restricted by the adjustable side excavator bucket 1.
[0025] How to use:
[0026] Install the trenching device onto the end of the excavator arm 13. Before excavation, set the trenching device according to the design requirements of the trench 14 (referring to depth and slope ratio). First, release the angle adjustment bolts 6 and extend the adjustable side bucket 1 outward to a suitable angle. Then tighten the angle adjustment bolts 6. After setting the angles of the two adjustable side buckets 1, the excavation slope ratio can be limited. Then adjust the height of the two depth limit bars 2 on the side of the main bucket 3 to set the excavation depth. Then drive the trenching device to excavate the trench 14 on the ground using the existing excavator operation method. The depth and slope ratio of the trench 14 meet the design requirements.
Claims
1. A trench excavation device capable of controlling excavation depth and slope ratio, characterized in that: The system includes a main bucket (3), on the top of which is a connecting assembly for connecting with the excavator arm (13). Adjustable side buckets (1) are provided on the left and right sides of the main bucket (3). Each adjustable side bucket (1) includes a back plate (1-2) and a side plate (1-1) located outside the back plate (1-2). The bottom edge of the side plate (1-1) is hinged to the bottom of the side wall of the main bucket (3) by a hinge (5). The back plate (1-2) is located at the rear of the rear wall of the main bucket (3). Multiple connecting holes (1-3) are provided on the inner edge of the main bucket (3). Multiple arc-shaped angle adjustment holes (7) are provided at corresponding positions on the rear wall of the main bucket (3). Angle adjustment bolts (6) are provided in the connecting holes (1-3) and angle adjustment holes (7). Multiple sets of depth adjustment holes (15) are provided on the left and right sides of the main bucket (3). It also includes two horizontal depth limiting bars (2). The root of the depth limiting bar (2) is fixedly connected to the side wall of the main bucket (3) by a depth adjustment bolt (17).
2. The trenching device with controllable excavation depth and slope ratio as described in claim 1, characterized in that: A strip hole (1-4) is provided in the middle of the side plate (1-1) of the adjustable side excavator (1), and the depth limiting bar (2) extends outward from the strip hole (1-4) on this side.
3. The trenching device with controllable excavation depth and slope ratio as described in claim 2, characterized in that: Multiple tooth seats are provided on the front part of the bottom wall of the main bucket (3), and digging teeth (4) are installed on each tooth seat.
4. The trenching device with controllable excavation depth and slope ratio as described in claim 3, characterized in that: The connecting assembly includes two opposing support plates (9) mounted and fixed on both sides of the top of the main bucket (3). Two sets of bearing seats (11) are provided on the two support plates (9). The excavator arm (13) is located between the two support plates (9). An assembly pin (10) is inserted into the pin hole at the end of the bearing seat (11) and the end of the excavator arm (13). The end of the assembly pin (10) is fixedly connected to the bearing seat (11) by an assembly bolt (16).
5. The trenching device with controllable excavation depth and slope ratio as described in claim 4, characterized in that: A top reinforcing connecting plate (12) is installed and fixed on the top of the main bucket (3). The rear edge of the top reinforcing connecting plate (12) is fixedly connected to the top edge of the rear wall of the main bucket (3). The end edge of the top reinforcing connecting plate (12) is fixedly connected to the inner wall of the two support plates (9). A reinforcing rib plate (8) is installed between the top of the left and right side walls of the main bucket (3) and the end of the top reinforcing connecting plate (12).