Machine tool for digging soil body in narrow space

Abstract

The utility model discloses a machine tool for digging soil in narrow space, which comprises a movable base, a mounting rod, a connecting rod, a digging rod and a digging head, a driving piece is arranged in the base and is respectively in transmission connection with the mounting rod and the digging head through a transmission component, and a grab handle is arranged at the top of the connecting rod. The digging head comprises a mounting cylinder and shovel-shaped buckets, the buckets are distributed around the axis of the cylinder at equal angles, and inner and outer rib plates are arranged between the cylinder and the buckets for reinforcement. A connecting rod and a frame body are arranged on two sides of the base; a supporting rod and a supporting sleeve are arranged at the top; the grab handle is inclined, the top end is horizontal, and strength is enhanced through the auxiliary rod. A mounting plate and a driving piece hoist are arranged in the base, the transmission assembly is a chain and chain wheel set, and a protective cover is arranged outside the second assembly. The machine tool can solve the problem of digging soil in a narrow space in rainwater and sewage diversion transformation of an old community, replaces manual work with machinery, improves construction efficiency and quality, reduces labor intensity, is stable in structure, convenient to operate and suitable for narrow construction space, and effectively overcomes the defects of an existing construction mode.

Description

Technical Field

[0001] This utility model relates to the field of soil excavation equipment technology, and in particular to a machine for excavating soil in confined spaces. Background Technology

[0002] Older residential communities, due to their earlier construction and relatively compact spatial layout, have extremely limited space for rainwater and sewage separation renovation projects. In terms of trench excavation, site constraints limit both the width and depth of excavation, making it difficult to deploy large machinery and equipment.

[0003] Especially during the excavation of soil around sewage wells within residential communities, the limited working space becomes a major obstacle. Currently, the common method is manual labor combined with pickaxes for excavation. However, this traditional method has significant drawbacks. On the one hand, it is inefficient, time-consuming, and severely impacts project progress; on the other hand, it requires a large workforce, leading to high labor costs. Moreover, because it relies entirely on manual operation, it is difficult to achieve ideal excavation quality, making it hard to guarantee the project's quality and subsequent usability. Summary of the Invention

[0004] The technical problem to be solved by this utility model is...

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a tool for excavating soil in a confined space, including a movable base, a mounting rod rotatably arranged on the top of the base, a connecting rod rotatably connected to the mounting rod, and an excavation rod rotatably arranged at the movable end of the connecting rod. An excavation head is coaxially fixedly connected to the excavation rod. A driving component is provided in the base. The driving component is connected to the mounting rod through a first transmission assembly. The mounting rod is connected to the excavation head through a second transmission assembly. A handle is fixedly connected to the top of the connecting rod.

[0006] Preferably, the digging head includes a mounting cylinder coaxially fixed to the digging rod and a bucket fixed to the outer wall of the mounting cylinder. The buckets are distributed at equal angles around the axis of the mounting cylinder and are shovel-shaped.

[0007] Preferably, the inner and outer walls of the bucket are respectively connected to the outer wall of the mounting cylinder by an inner stiffening plate and an outer stiffening plate.

[0008] Preferably, the inner stiffening plate and the outer stiffening plate are equidistantly arranged along the axial direction of the mounting cylinder.

[0009] Preferably, the connecting rods are arranged on both sides of the base, a frame is fixedly installed between the two connecting rods, and a support rod is provided on the top of the base, with the support rod located directly below the frame.

[0010] Preferably, a support sleeve is fixedly fitted at the top end of the support rod.

[0011] Preferably, the bottom end of the handle is connected to the middle of the connecting rod, the handle is arranged at an angle relative to the connecting rod, and the top end of the handle is arranged horizontally with a gripping end.

[0012] Preferably, an auxiliary rod is fixedly connected to one end of the connecting rod near the mounting rod, and the top end of the auxiliary rod is fixed to the middle of the handle.

[0013] Preferably, a mounting plate is vertically fixed inside the base, the drive component is suspended from the inner top of the base, a drive shaft is horizontally rotatably arranged on the mounting plate, the output end of the drive component is coaxially fixedly connected to the drive shaft, and the first transmission assembly is connected to the drive shaft.

[0014] Preferably, both the first transmission component and the second transmission component are chain and sprocket sets, and the outer side of the second transmission component is covered with a protective cover, which is bolted to the connecting rod.

[0015] This utility model provides a tool for excavating soil in confined spaces, which has the following beneficial effects.

[0016] 1. The drive mechanism within the base rotates the mounting rod via the first transmission assembly, which in turn rotates the excavator head via the second transmission assembly to excavate the soil. This method changes the traditional manual excavation method using a pickaxe, significantly improving construction efficiency, shortening construction time, and accelerating project progress. Operators can adjust the rotation angle of the connecting rod using the handle, thereby adjusting the excavator head's position.

[0017] 2. The bucket of the excavation head is distributed at equal angles around the axis of the installation cylinder and is shovel-shaped. Combined with the reinforcement structure of inner and outer stiffening plates, the excavation process is more stable and efficient. Compared with manual operation, it can better guarantee the excavation quality and ensure the quality of the project and the subsequent use effect.

[0018] 3. The handle is angled and has a horizontal gripping end at the top, making it convenient for operators to hold and apply force; at the same time, the design of connecting the handle in the middle of the connecting rod and setting an auxiliary rod to support the handle near the mounting rod increases the stability and comfort of operation and reduces the labor intensity of operators. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0020] Figure 1 This is a side view of the structure of an embodiment of the present utility model.

[0021] Figure 2 This is a schematic diagram of the structure of the excavating head in an embodiment of this utility model.

[0022] Figure 3 This is a front view of the base structure in an embodiment of this utility model.

[0023] In the diagram: 1. Base; 2. Top plate; 3. Mounting rod; 4. Connecting rod; 5. Digging rod; 6. Mounting cylinder; 7. Bucket; 8. Outer stiffening plate; 9. Second transmission assembly; 10. Handle; 11. Auxiliary rod; 12. Support rod; 13. Support sleeve; 14. Mounting plate; 15. First transmission assembly; 16. Driving component; 17. Inner stiffening plate. Detailed Implementation

[0024] like Figure 1-3 As shown, this utility model provides a tool for excavating soil in a confined space, including a movable base 1, a mounting rod 3 rotatably arranged on the top of the base 1, a connecting rod 4 rotatably connected to the mounting rod 3, and an excavation rod 5 rotatably arranged at the movable end of the connecting rod 4. An excavation head is coaxially fixedly connected to the excavation rod 5. A driving component 16 is provided inside the base 1. The driving component 16 is connected to the mounting rod 3 through a first transmission assembly 15. The mounting rod 3 is connected to the excavation head through a second transmission assembly 9. A handle 10 is fixedly connected to the top of the connecting rod 4.

[0025] The base 1 is a frame structure, and support rollers are installed at the bottom of the base 1 to support the movement of the base 1. The frame structure of the base 1 is simple, low in cost and light in weight, making it convenient for workers to transport the equipment into the trench.

[0026] When excavating the soil on the sidewall of the trench, the worker moves the machine to the construction area by pushing it and starts the drive unit 16 by turning on the switch on the handle 10. The drive unit 16 drives the excavation head to rotate through the first transmission component 15 and the second transmission component 9. While the excavation head is rotating, the worker pushes the machine to move by turning on the handle 10 to excavate the soil. During the excavation, the worker also adjusts the rotation of the connecting rod 4 by turning on the handle 10 to excavate soil at different heights until the soil in the construction area is excavated. Then the drive unit 16 is turned off.

[0027] like Figure 1 and Figure 2 As shown, to improve the efficiency of soil excavation, the excavation head includes an installation cylinder 6 coaxially fixed to the excavation rod 5 and buckets 7 fixed to the outer wall of the installation cylinder 6. The buckets 7 are distributed at equal angles around the axis of the installation cylinder 6 and are shovel-shaped. Four buckets 7 are connected to the installation cylinder 6, which is directly welded to the middle of the excavation rod 5 for fixation. By driving the installation cylinder 6 to rotate, the buckets 7 are driven to rotate, and the buckets 7 excavate the soil during rotation. The excavated soil falls from the bottom of the excavation head. Continuous excavation can be ensured during the adjustment of the excavation head position, thereby improving construction efficiency.

[0028] like Figure 1 and Figure 2 As shown, to improve the strength of the excavator head, inner stiffening plates 17 and outer stiffening plates 8 are respectively connected between the inner and outer walls of the bucket 7 and the outer wall of the mounting cylinder 6. By setting inner stiffening plates 17 and outer stiffening plates 8 between the bucket 7 and the mounting cylinder 6, the strength of the middle plate of the bucket 7 is ensured, and deformation of the bucket 7 is prevented.

[0029] like Figure 1 and Figure 2 As shown. The inner stiffening plate 17 and the outer stiffening plate 8 are both equidistantly arranged along the axial direction of the mounting cylinder 6. By setting multiple inner stiffening plates 17 and outer stiffening plates 8, the entire bucket 7 is stably connected to the mounting cylinder 6, thereby improving the strength of the bucket 7.

[0030] like Figure 1 and Figure 2 As shown, to avoid friction between the excavator head and the ground during the movement of the equipment, connecting rods 4 are arranged on both sides of the base 1. A frame is fixedly installed between the two connecting rods 4, and a support rod 12 is installed on the top of the base 1, located directly below the frame. During the movement of the equipment, the support rod 12 cooperates with the frame on the connecting rods 4 to support the connecting rods 4 and the excavator head, preventing the bottom of the excavator head from contacting the ground.

[0031] like Figure 1 As shown. A support sleeve 13 is fixedly fitted to the top of the support rod 12. After using the digging head, when the handle 10 is lowered, because the support rod 12 is a metal tube structure, it will deform and the surface anti-rust layer will be damaged under long-term impact with the connecting rod 4, eventually leading to the damage of the support rod 12.

[0032] like Figure 1 As shown, to facilitate the gripping of the handle 10 by the operator, the bottom end of the handle 10 is connected to the middle of the connecting rod 4, the handle 10 is arranged at an angle relative to the connecting rod 4, and the top end of the handle 10 is horizontally arranged with a gripping end. With the gripping end at the top of the handle 10, the operator can adjust the height of the digging head by holding the handle end and rotating the connecting rod 4.

[0033] like Figure 1 As shown, to improve the strength of the grip 10, an auxiliary rod 11 is fixedly connected to one end of the connecting rod 4 near the mounting rod 3, and the top end of the auxiliary rod 11 is fixed to the middle of the grip 10. By connecting the auxiliary rod 11 between the grip 10 and the connecting rod 4, the auxiliary rod 11 is used to improve the strength of the grip 10 and prevent the grip 10 from bending during long-term use.

[0034] like Figure 1 and Figure 3As shown. A mounting plate 14 is vertically fixed inside the base 1. The drive component 16 is suspended from the inner top of the base 1. A drive shaft is horizontally rotatably arranged on the mounting plate 14. The output end of the drive component 16 is coaxially fixedly connected to the drive shaft. The first transmission assembly 15 is connected to the drive shaft. The drive shaft is rotatably mounted by setting two mounting plates 14. The drive component 16 is fixedly mounted at the bottom of the top plate of the base 1. The drive component 16 includes a motor and a reducer connected by transmission. The output end of the reducer is coaxially fixedly connected to one end of the drive shaft via a coupling. A sprocket in the first transmission assembly 15 is fixed in the middle of the mounting shaft. The drive shaft drives the mounting rod 3 to rotate via the first transmission assembly 15. The mounting rod 3 drives the digging rod 5 to rotate via the second transmission assembly 9.

[0035] like Figure 1-3 As shown in the figure. Both the first transmission assembly 15 and the second transmission assembly 9 are chain and sprocket sets. The outer side of the second transmission assembly 9 is covered with a protective cover, which is bolted to the connecting rod 4. The protective cover is not shown in the figure, but a transmission cover similar to that used in motorcycle transmission chains can be used to shield the second transmission assembly 9, reducing mud and preventing it from hitting rocks. Using a chain and sprocket set for transmission provides strong stability and meets the requirements of the construction site.

Claims

1. A machine for excavating soil in confined spaces, characterized in that: The utility model provides a kind of excavator, including movable base (1), rotatingly arranged mounting rod (3) on the top of base (1), connecting rod (4) rotationally connected on mounting rod (3) and digging rod (5) rotationally arranged in the active end of connecting rod (4), digging head is fixedly connected coaxially on digging rod (5), driving element (16) is arranged in base (1), driving element (16) is drivingly connected with mounting rod (3) by first transmission assembly (15), mounting rod (3) is drivingly connected with digging head by second transmission assembly (9), and handle (10) is fixedly connected on the top of connecting rod (4).

2. The apparatus according to claim 1, wherein: The digging head includes a mounting cylinder (6) coaxially fixed on the digging rod (5) and a bucket (7) fixed on the outer sidewall of the mounting cylinder (6). The bucket (7) is equally angularly distributed around the axis of the mounting cylinder (6), and the bucket (7) is shovel-shaped.

3. The apparatus of claim 2, wherein: Inner and outer walls of the bucket (7) are respectively connected with inner and outer rib plates (17) and (8) between the outer sidewall of the mounting cylinder (6).

4. The apparatus of claim 3, wherein: The inner and outer rib plates (17) and (8) are equally spaced along the axial direction of the mounting cylinder (6).

5. The machine for excavating soil in confined spaces as described in claim 1, characterized in that: Both sides of the base (1) are arranged with the connecting rod (4), and a frame body is fixedly arranged between the two connecting rods (4). The top of the base (1) is provided with a supporting rod (12) located directly below the frame body.

6. The apparatus of claim 5, wherein: The top end of the supporting rod (12) is fixedly sleeved with a supporting sleeve (13).

7. The apparatus of claim 1, wherein: The bottom end of the handle (10) is connected to the middle part of the connecting rod (4), and the handle (10) is inclinedly arranged relative to the connecting rod (4). The top end of the handle (10) is horizontally arranged with a holding end.

8. The apparatus of claim 7, wherein: The end of the connecting rod (4) close to the mounting rod (3) is fixedly connected with an auxiliary rod (11), and the top end of the auxiliary rod (11) is fixed to the middle part of the handle (10).

9. The apparatus of claim 1, wherein: The base (1) is vertically fixedly provided with a mounting plate (14), the driving element (16) is hoisted on the inner top of the base (1), the mounting plate (14) is horizontally rotationally arranged with a driving shaft, the output end of the driving element (16) is coaxially fixedly connected with the driving shaft, and the first transmission assembly (15) is connected to the driving shaft.

10. The apparatus of claim 1, wherein: Both the first transmission assembly (15) and the second transmission assembly (9) are chain and sprocket assemblies, the outer side of the second transmission assembly (9) is covered with a protective cover, and the mounting cover is bolted to the connecting rod (4).

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