A foundation pit excavation tool in a limited space

Abstract

The present invention discloses a foundation pit excavation tool in a limited space, comprising a bucket body, a base and a connector, wherein the front side of the base is connected to the rear end of the bucket body, the rear side of the base is connected to the connector, and a connecting hole is provided on the connector; the bucket body is composed of a bottom plate and two side plates, the two side plates are symmetrically arranged on both sides of the bottom plate, and the bottom plate comprises a material digging part and a material holding part from front to back, the material digging part is upwardly tilted in a certain arc, and the material holding part is in a rectangular shape. The tool has a simple structure and is easy to use; it can be quickly replaced like a common bucket joint, and is suitable for narrow range construction conditions, has a high degree of mechanical construction, and can improve construction efficiency.

Description

Technical Field

[0001] The invention relates to a bucket structure, in particular to a tool which can be used for excavating a foundation pit in a limited space. Background Art

[0002] The cap is the part that connects the pile and the column or pier. The cap connects several or even dozens of piles to form a pile foundation. Conventional foundation pit excavation mainly involves slope excavation. This method is convenient for construction, has few obstacles for excavator operation, and has high work efficiency. After the foundation is excavated, the foundation structure has a large working space, the construction period is relatively short, and the economic benefits are good. However, in cities or densely populated areas, this excavation method is often not allowed. The excavation of municipal roads or highways in cities is often carried out in a limited working space. How to quickly excavate the foundation pit is related to the overall progress of the construction period. The excavation of the supported foundation pit is vertically excavated downwards. It does not require a large area around the foundation pit. It can be used in small areas with poor soil quality. At the same time, after the underground structure is completed, the amount of backfilling work in the foundation pit is also small. In order to minimize the occupation of urban land and reduce excavation costs, the construction party usually reduces the excavation range as much as possible. Therefore, the silt in the corner of the steel sheet pile is blocked by the pile head and is not easy to excavate. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a practical new type of digging tool, which provides a more efficient, faster and more convenient digging device for foundation pit excavation in a limited space.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a foundation pit excavation tool in a limited space, including a bucket body, a base and a connector, the front side of the base is connected to the rear end of the bucket body, the rear side of the base is connected to the connector, and the connector is provided with a connecting hole; the bucket body is composed of a bottom plate and two side plates, the two side plates are symmetrically arranged on both sides of the bottom plate, the bottom plate includes a digging part and a material holding part from front to back, the digging part is upwardly tilted with a certain arc, and the material holding part is rectangular.

[0005] Furthermore, a plurality of reinforcing plates are provided between the bucket body and the base.

[0006] Furthermore, the inner curvature of the digging part is 50° to 80° (preferably 70°), and the outer curvature is 100° to 130° (preferably 110°).

[0007] Furthermore, the front ends of the two side panels are in an upwardly tilted half-crescent shape that matches the shape of the digging portion.

[0008] Furthermore, the length-to-width ratio of the material holding portion is not less than 3:1.

[0009] Furthermore, a plurality of digging teeth are provided at the front end of the digging part.

[0010] The beneficial effects of the present invention are:

[0011] ①Same as common bucket joints, can be replaced quickly;

[0012] ② Suitable for construction conditions in a narrow range;

[0013] ③The mechanical construction level is high, which improves the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural front view of the present invention;

[0015] Figure 2 It is a top view of the structure of the present invention. DETAILED DESCRIPTION

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] like Figure 1 and Figure 2 As shown, a foundation pit excavation tool in a limited space includes a bucket body 1, a base 3 and a connector 4, wherein the bucket body 1 is a special square pointed bucket with a certain arc formed by welding a bottom plate and two side plates, and the two side plates are symmetrically welded to the two sides of the bottom plate, and the bottom plate includes a digging part and a holding part from front to back, and the digging part is upwardly tilted with a certain arc, wherein the inner side bending arc S1 of the digging part is 50°~80° (preferably 70°), and the outer side bending arc is 100°~130° (preferably 110°), and the inner side tilting height H of the digging part is not greater than the height of the holding part. The material holding portion is in a rectangular shape, and the front ends of the two side panels are in an upwardly tilted half-crescent shape that matches the shape of the digging portion; the rear ends of the bottom plate and the two side panels are connected to the base 3, and the ends of the bottom plate and the two side panels are provided with a number of reinforcing plates 2 connected to the base 3, and the rear side of the base 3 is connected to two spaced-apart connectors 4, and the connectors 4 are provided with connecting holes 41 for connecting digging rods.

[0018] Furthermore, the length (L) to width (S) ratio of the material holding portion is not less than 3:1. Preferably, the length (L) to width (S) ratio of the material holding portion is 4.5:1, which is more suitable for construction in a narrow range.

[0019] Furthermore, a plurality of digging teeth are provided at the front end of the digging part.

[0020] The above is only a preferred embodiment of the present invention, and should not be used to limit the scope of the present invention. That is, all simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the invention description are still within the scope of the patent of the present invention.

Claims

1. A foundation pit excavation tool in a limited space, characterized in that: It includes a bucket body, a base and a connector, the front side of the base is connected to the rear end of the bucket body, the rear side of the base is connected to the connector, and the connector is provided with a connecting hole; the bucket body is composed of a bottom plate and two side plates, the two side plates are symmetrically arranged on both sides of the bottom plate, and the bottom plate includes a digging part and a material holding part from front to back, the digging part is upwardly tilted in an arc, the material holding part is in a rectangular shape, the inner side of the digging part is tilted up no more than the height of the material holding part, and the front ends of the two side plates are upwardly tilted to match the shape of the digging part.

2. A foundation pit excavation tool in a limited space according to claim 1, characterized in that: A plurality of reinforcing plates are arranged between the bucket body and the base.

3. A foundation pit excavation tool in a limited space according to claim 1, characterized in that: The front ends of the two side panels are both in an upwardly tilted half-crescent shape.

4. A foundation pit excavation tool in a limited space according to claim 2 or 3, characterized in that: The length-to-width ratio of the material holding portion is not less than 3:

1.

5. The foundation pit excavation tool in a limited space according to claim 1, characterized in that: A plurality of digging teeth are also provided at the front end of the digging part.

6. A foundation pit excavation tool in a limited space according to any one of claims 1, 2, 3 or 5, characterized in that: The inner curvature of the excavation part is 50° to 80°, and the outer curvature is 100° to 130°.

7. A foundation pit excavation tool in a limited space according to any one of claims 1, 2, 3 or 5, characterized in that: The inner curvature of the excavation part is 70°, and the outer curvature is 110°.

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