A curb base trench excavating device

Abstract

The utility model relates to the technical field of municipal construction, concretely is a kind of curb base trench excavating device, including slotting cutter group and be equipped in the ear plate of slotting cutter group, the slotting cutter group includes support plate, two sliding plates of horizontal sliding and being established on support plate, adjusting mechanism being established on support plate;The ear plate is located on the upper portion of support plate, two The two sides of sliding plate respectively support plate, two The sliding plate is synchronously reversed movement by adjusting mechanism driving two sliding plates on support plate transmission connection by adjusting mechanism. By setting adjusting mechanism, the synchronous reversed movement of two sliding plates can be realized, so as to quickly adjust the width of slotting cutter group. When different curb sizes need to be adapted, start hydraulic cylinder, move sliding plate by hydraulic system drive, without disassembling components, shorten construction adjustment time, improve construction efficiency. This automatic adjustment mode is not only simple to operate, but also can ensure the accuracy of width adjustment, meet the size requirements of different projects.

Description

Technical Field

[0001] This utility model relates to the field of municipal construction technology, specifically a curbstone trench excavation device. Background Technology

[0002] In municipal construction, the excavation of curbstone trenches is a fundamental and crucial task. Currently, traditional curbstone trench excavation equipment has significant shortcomings in practical applications.

[0003] Most grooving cutter sets have a fixed structure, making it difficult to flexibly adjust the grooving width and depth according to the different sizes of curb stones. When faced with differences in curb stone sizes in different projects, construction workers often need to adapt to the requirements through cumbersome operations such as disassembly, replacement of parts, or additional auxiliary tools. This not only significantly increases construction preparation time but may also cause wear and tear on device components due to frequent disassembly, affecting construction efficiency and the service life of the device. Utility Model Content

[0004] The purpose of this utility model is to provide a curbstone trench excavation device to solve the problem mentioned in the background art that most devices have a fixed grooving cutter group structure, making it difficult to flexibly adjust the grooving width and depth according to the size of curbstones of different specifications.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a curbstone trench excavation device, comprising a grooving cutter group and ear plates disposed on the grooving cutter group. The grooving cutter group includes a support plate, two sliding plates horizontally slidably disposed on the support plate, and an adjustment mechanism disposed on the support plate. The ear plates are disposed on the upper part of the support plate, and the two sliding plates are respectively located on both sides of the support plate. Both sliding plates are driven by the adjustment mechanism, which drives the two sliding plates to move synchronously in opposite directions on the support plate.

[0006] Furthermore, the adjustment mechanism includes a rotating rod located in the middle of the support plate, a rotating plate rotatably connected to the rotating rod, two connecting rods rotatably connected at one end to both ends of the rotating plate, and a hydraulic cylinder horizontally mounted on the support plate; the other ends of the two connecting rods are rotatably connected to the middle of the two sliding plates respectively, and the output shaft of the hydraulic cylinder is connected to one of the sliding plates.

[0007] Furthermore, auxiliary plates can be detachably connected to the sides of the two sliding plates that are far apart from each other.

[0008] Furthermore, one of the sliding plates is provided with a first protective plate, and the other sliding plate is provided with a second protective plate. One side of the second protective plate is located inside the first protective plate and slides in cooperation with the first protective plate. Both the first and second protective plates are C-shaped.

[0009] Furthermore, mounting holes are provided on the ear plate.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. Convenient and Efficient Width Adjustment: This invention, through the setting of an adjustment mechanism including a rotating rod, a rotating plate, a connecting rod, and a hydraulic cylinder, enables the synchronous counter-movement of two sliding plates, thereby quickly adjusting the width of the grooving cutter assembly. When it is necessary to adapt to different curbstone sizes, simply activating the hydraulic cylinder will drive the sliding plates to move via the hydraulic system, eliminating the need to disassemble components, significantly shortening construction adjustment time and improving construction efficiency. This automated adjustment method is not only easy to operate but also ensures the accuracy of width adjustment, meeting the dimensional requirements of different projects.

[0012] 2. Precise and Flexible Depth Control: The device controls the excavation depth of the foundation trench by adjusting the insertion depth of the excavator, achieving precise adjustment through the mechanical control of the excavator. This method allows for rapid positioning of the excavation depth according to design requirements, ensuring consistency in the foundation trench depth, providing a stable foundation for the installation of curb stones, and effectively improving construction quality.

[0013] 3. High structural adaptability: The detachable auxiliary plates on the two sliding plates can be replaced according to the shape of the excavation trench and different geological conditions, enhancing the device's adaptability to various construction scenarios and reducing the increase in construction difficulty caused by changes in working conditions.

[0014] 4. Balancing Protection and Stability: The sliding fit design of the first and second protective plates effectively protects the components within the adjustment mechanism during excavation, preventing wear or damage from soil, gravel, and other debris, thus extending the device's service life. Simultaneously, the reliable connection between the ear plates and the excavator's boom and linkage mechanism ensures the device's stability during operation, guaranteeing precise execution of the slotting cutter assembly's adjustment and excavation actions. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the present utility model;

[0016] Figure 2 This is a rear view of the present invention;

[0017] Figure 3 This is a partial structural diagram of the present utility model;

[0018] Figure 4 This is a structural diagram of the first and second protective plates of this utility model.

[0019] In the picture:

[0020] 1. Ear plate; 2. Support plate; 3. Sliding plate; 4. Rotating rod; 5. Rotating plate; 6. Connecting rod; 7. Hydraulic cylinder; 8. Auxiliary plate; 9. First protective plate; 10. Second protective plate; 11. Mounting hole. Detailed Implementation

[0021] Please see Figures 1 to 4 A curbstone trench excavation device includes a grooving cutter assembly and a lug plate 1. The lug plate 1 is made of 200mm*150mm*20mm steel plate and has mounting holes 11. In use, the excavator bucket is removed, and the lug plate is installed on the excavator's boom and linkage mechanism through the mounting holes 11. The grooving cutter assembly includes a support plate 2, a sliding plate 3, and an adjustment mechanism. The support plate 2 is made of 400mm*500mm*18mm steel plate, and its upper middle part is fixed to the lug plate 1 by bolts or welding. Two T-shaped grooves are horizontally opened on one side of the support plate 2. There are two sliding plates 3, both made of 150mm*500mm*18mm steel plate. Each sliding plate 3 has two sliders adapted to the T-shaped grooves on one side. The sliders are located in the grooves and can slide horizontally within the grooves. The two sliding plates 3 are located on both sides of the support plate 2. The adjustment mechanism consists of a rotating rod 4 welded to the middle of one side of the support plate 2, a rotating plate 5 rotatably connected to the rotating rod 4 via bearings, two connecting rods 6, and a hydraulic cylinder 7 horizontally mounted on the bottom of one side of the support plate 2. One end of each of the two connecting rods 6 is rotatably connected to both ends of the rotating plate 5 via bearings, and the other end of each of the two connecting rods 6 is rotatably connected to the middle of each of the two sliding plates 3 via bearings. The output shaft of the hydraulic cylinder 7 is connected to one side of one of the sliding plates 3. This hydraulic cylinder 7 is connected to the excavator's own hydraulic system to provide power (this excavator is equipped with an "auxiliary hydraulic interface" such as a K5V or PVX series hydraulic pump, and the hydraulic cylinder parameters are matched with the auxiliary circuit).

[0022] Each of the two sliding plates 3 has an auxiliary plate 8 detachably connected by bolts on the side away from each other, so that different auxiliary plates 8 can be replaced according to the shape of the trench excavation.

[0023] One sliding plate 3 is provided with a first protective plate 9, and the other sliding plate 3 is provided with a second protective plate 10. One side of the second protective plate 10 is located inside the first protective plate 9 and slides in cooperation with the first protective plate 9. Both the first protective plate 9 and the second protective plate 10 are C-shaped (e.g., ...). Figure 4 As shown in the figure, this is to protect the components inside the adjustment mechanism during the excavation of the foundation trench.

[0024] Working principle of this utility model:

[0025] I. Equipment Installation and Hydraulic System Integration

[0026] Disassemble the original bucket of the excavator and fix the device to the excavator's boom and linkage mechanism through the mounting holes 11 on the ear plate 1. Use high-strength bolts (bolt specification M20×80) to ensure a rigid connection between the ear plate 1 and the excavator structure. After positioning the grooving cutter assembly through the ear plate 1, make the support plate 2 perpendicular to the excavator's direction of travel.

[0027] Connect the hydraulic cylinder 7 of the device to the excavator's auxiliary hydraulic circuit (such as a K5V series hydraulic pump) to ensure that the hydraulic oil flow rate (20-30L / min) matches the hydraulic cylinder parameters (cylinder diameter 80mm, stroke 150mm), and realize power transmission through the hydraulic control system.

[0028] II. Principle of Groove Width Adjustment

[0029] Power input: The output shaft of hydraulic cylinder 7 pushes one side of the sliding plate 3, causing the sliding plate 3 to move horizontally along the T-shaped groove of the support plate 2 through hydraulic driving force. This sliding plate drives the rotating plate 5 to rotate around the rotating rod 4 through the connecting rod 6, forming a four-bar linkage. When the rotating plate rotates, the connecting rod on the other side synchronously drives the other sliding plate 3 to move in the opposite direction, realizing the synchronous reverse movement of the two sliding plates 3. The pressure closed-loop control of the hydraulic system (working pressure 12-16MPa) ensures the movement accuracy of the sliding plate and meets the grooving requirements of different curbstone sizes (width 400mm-700mm).

[0030] III. Excavation Procedure for Foundation Pit

[0031] Excavation of soft soil layers (plowing-style operation)

[0032] Auxiliary plate adaptation: According to the design shape of the foundation trench (such as rectangular or trapezoidal), replace the auxiliary plate 8 on the sliding plate 3 with bolts (material 45# steel, hardness HRC40~45). For example, when excavating a trapezoidal trench, select the inclined auxiliary plate.

[0033] Depth control: The depth of the grooving cutter group inserted into the soil layer is adjusted by raising and lowering the excavator boom (control accuracy ±10mm), and continuous excavation is achieved in conjunction with the excavator track movement (speed 0.5-1m / min).

[0034] Earthwork clearing: After advancing 5-10m, work is paused and workers clear the excess soil to prevent it from piling up and affecting the excavation accuracy.

[0035] Repair and maintenance of old foundation trenches

[0036] Damaged curbstone removal: First, use a breaker to remove the old curbstone, then move the grooving cutter set at low speed (10-15 r / min) to scrape away the debris and grass roots on the inner wall of the trench.

[0037] IV. Key Protection Mechanisms and Stability Design

[0038] Working principle of protection system

[0039] The first protective plate 9 and the second protective plate 10 form a superimposed protective structure. When the grooving cutter group cuts into the soil layer, the first protective plate 9 and the second protective plate 10 cover the adjustment mechanism (rotating rod, connecting rod, etc.) to prevent soil and gravel from entering the transmission components and extend the life of the hydraulic cylinder seals (improve service life).

Claims

1. A curbstone trench excavation device, comprising a grooving cutter set and an ear plate (1) disposed on the grooving cutter set, characterized in that, The grooving cutter assembly includes a support plate (2), two sliding plates (3) horizontally slidably disposed on the support plate (2), and an adjustment mechanism disposed on the support plate (2); the ear plate (1) is disposed on the upper part of the support plate (2), the two sliding plates (3) are respectively located on both sides of the support plate (2), and the two sliding plates (3) are connected to the adjustment mechanism for transmission. The adjustment mechanism drives the two sliding plates (3) to move synchronously in opposite directions on the support plate (2).

2. The trench excavation device as described in claim 1, characterized in that, The adjustment mechanism includes a rotating rod (4) located in the middle of the support plate (2), a rotating plate (5) rotatably connected to the rotating rod (4), two connecting rods (6) rotatably connected at one end to both ends of the rotating plate (5), and a hydraulic cylinder (7) horizontally located on the support plate (2); the other ends of the two connecting rods (6) are rotatably connected to the middle of the two sliding plates (3), and the output shaft of the hydraulic cylinder (7) is connected to one of the sliding plates (3).

3. The trench excavation device as described in claim 1, characterized in that, Each of the two sliding plates (3) can be detachably connected to an auxiliary plate (8) on the side that is far apart from each other.

4. The trench excavation device as described in claim 3, characterized in that, One of the sliding plates (3) is provided with a first protective plate (9), and the other sliding plate (3) is provided with a second protective plate (10). One side of the second protective plate (10) is located inside the first protective plate (9) and slides in cooperation with the first protective plate (9). Both the first protective plate (9) and the second protective plate (10) are C-shaped.

5. The trench excavation device as described in claim 4, characterized in that, The ear plate (1) is provided with mounting holes (11).

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