Device for cleaning sediment at hole bottom of pile foundation of photovoltaic power station

Abstract

The utility model discloses a device for cleaning sediment at the hole bottom of a pile foundation of a photovoltaic power station. The device comprises a shovel rod and a steel wire drill bit. One end of the shovel rod is inserted into the drill hole and provided with a steel wire drill bit; the steel wire drill bit comprises an alloy drill bit, a plurality of mounting holes and a plurality of steel wire ropes; a plurality of mounting holes are formed in the inner wall of the alloy bit; two ends of the steel wire rope are respectively connected with the mounting holes; the central area of the steel wire mesh protrudes towards the open end of the alloy drill bit, and the gap size of the central area is smaller than the size of the stone; the gap size on the outer periphery of the steel wire mesh is larger than the stone size. The device not only can clean silt, clay and gravelly soil, but also can clean objects with large density of pebbles and block stones, can effectively overcome the defects of current common tools, can improve the hole cleaning efficiency and the hole forming quality, can save a large amount of hole cleaning time and reworking cost after hole collapse, and has good economic benefits and social benefits.

Description

Technical Field

[0001] The present application relates to the technical field of photovoltaic cast-in-place piles, and in particular to a device for cleaning sediment at the bottom of a photovoltaic power station pile foundation hole. Background Art

[0002] The construction process of photovoltaic cast-in-place pile foundation includes: a. measurement and setting out - b. drilling - c. hole cleaning - d. burying PVC formwork - e. making and placing steel cage - f. pouring concrete. Due to the tight construction period and large workload of the photovoltaic power station cast-in-place pile foundation, as well as the influence of factors such as complex mountainous terrain, it is easy to be negligent in construction quality control, resulting in reduced construction quality, pile foundation settlement, diseased piles or broken piles, and thus endangering the safety of photovoltaic power stations.

[0003] When the pile driver drills the hole and before the pile is cast, it is often necessary to clean the hole several times to ensure that the effective pile length meets the design requirements. The diameter of the photovoltaic bracket foundation pile is generally 150-200mm. During the current construction work, workers usually use homemade tools such as "Luoyang shovel" or household rice spoons tied to long poles to probe into the pile hole for digging. Such tools will damage the hole wall during the hole cleaning process, so not only can the hole depth not be effectively controlled, but also the risk of over-digging will increase. At the same time, it may cause secondary damage to the hole wall and collapse the hole, increasing the drilling rework time and related costs.

[0004] CN202123178051.8 discloses a "special hole cleaning device for photovoltaic support foundation", including a main shaft, a depth scale is arranged in the axial direction of the main shaft, a handle is connected to the upper end of the main shaft, and a rotary excavator is arranged at the lower end; a limiter is slidably arranged on the main shaft, and the limiter has a locking mechanism, and the limiter is fixed to the main shaft by the locking mechanism. The device has the following defects: when there are pebbles and gravel to be cleaned in the borehole, they are easy to fall off during the extraction process. When the diameter of the stone is large, it is difficult for the hole cleaner to enter for the cleaning operation. At this time, various homemade tools can only be used instead. At the same time, due to the large diameter, the drilling and expansion of the hole will be serious, and even the drilling will fail.

[0005] The information disclosed in the background technology section is only intended to increase the understanding of the overall background of the utility model, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to ordinary technicians in the field. Utility Model Content

[0006] In response to the above technical problems, the present application provides a device for cleaning sediment at the bottom of a photovoltaic power station pile foundation hole, which can quickly clean the debris and stones in the drill hole, saving time and effort.

[0007] The present application provides a device for cleaning sediment at the bottom of a pile foundation hole of a photovoltaic power station, comprising: a shovel rod and a wire drill bit; one end of the shovel rod is inserted into the drill hole, and the wire drill bit is arranged on the inserted end; the wire drill bit comprises: an alloy drill bit, a plurality of mounting holes, and a plurality of wire ropes; a plurality of mounting holes are arranged on the inner wall of the alloy drill bit; the two ends of the wire rope are respectively connected to the mounting holes; the plurality of wire ropes are surrounded by a wire mesh, the central area of ​​the wire mesh protrudes toward the open end of the alloy drill bit, and the gap size in the central area is smaller than the size of the stone; the gap size on the outer periphery of the wire mesh is larger than the size of the stone.

[0008] Preferably, it comprises: a spiral piece; the spiral piece is accommodated in the open end of the alloy drill bit; and the open end of the spiral piece is extended out of the alloy drill bit.

[0009] Preferably, it comprises: a depth scale; the depth scale is arranged on the outer wall of the shovel rod.

[0010] Preferably, the shovel rod comprises: a plurality of rod bodies; the rod bodies are detachably connected via threads.

[0011] Preferably, holes are symmetrically arranged on the rod body; and the operating rod is inserted into the holes.

[0012] Preferably, it comprises: a reducing joint; the shovel rod and the wire drill bit are connected via the reducing joint.

[0013] Preferably, the shovel rod is a geological drilling shovel rod or a galvanized steel shovel rod.

[0014] Preferably, it comprises: a handle; the handle is arranged on the top surface of the shovel rod and vertically connected to the shovel rod.

[0015] Preferably, the mounting holes are opened on the side wall of the same cross section 3 cm away from the lip of the alloy drill bit, and are arranged at intervals along the circumferential direction.

[0016] The beneficial effects of this application include:

[0017] 1) The device provided in this application for cleaning sediment at the bottom of the pile foundation hole of a photovoltaic power station can not only clean silt, clay, and gravel soil, but also clean objects with higher density such as pebbles and boulders. It can effectively solve the drawbacks of currently commonly used tools, and can also improve the hole cleaning efficiency and hole quality, saving a lot of hole cleaning time and rework costs after hole collapse, and has good economic and social benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of a front view of a device for cleaning sediment at the bottom of a pile foundation hole of a photovoltaic power station in at least one embodiment provided in the present application;

[0019] Figure 2 A bottom view schematic diagram of a device for cleaning sediment at the bottom of a pile foundation hole of a photovoltaic power station in at least one embodiment provided in the present application;

[0020] Figure 3 A schematic diagram of the three-dimensional structure of a shovel rod in at least one embodiment provided in the present application;

[0021] Figure 4 A schematic diagram of the three-dimensional structure of a ring-mounted soil extractor in at least one embodiment provided in the present application;

[0022] Legend:

[0023] Shovel rod 1, handle 2, reducer 3, wire drill bit 4, depth scale 11, hole 12, alloy drill bit 41, rivet 42, mounting hole 43, wire rope 44, ring-mounted soil extractor 45, spiral piece 451. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0026] The technical means that are not described in detail in this application and are not used to solve the technical problems of this application are all set according to the common knowledge in the field, and can be implemented in a variety of common knowledge settings.

[0027] See also Figures 1 to 4 The device for cleaning sediment at the bottom of the pile foundation hole of a photovoltaic power station provided in the present application comprises: a shovel rod 1, a depth scale 11 is arranged on the shovel rod 1 along the axial direction, a handle 2 is connected to the upper end of the shovel rod 1, and a reducer 3 and a wire drill 4 connected to one end of the reducer 3 are arranged at the lower end. The wire drill 4 comprises: an alloy drill 41, a rivet 42, a mounting hole 43, a wire rope 44, and a ring-mounted soil extractor 45. A plurality of mounting holes 43 are provided on the inner wall of the alloy drill 41; the two ends of the plurality of wire ropes 44 are respectively fixedly connected to the mounting holes 43 on both sides; a wire mesh can also be fixedly connected and surrounded by rivets 42, and the wire mesh surface protrudes toward the open end surface at the bottom of the alloy drill 41 in the central area, and the gap size in the central area is smaller than the stone size; the gap size on the outer periphery of the wire mesh is larger than the stone size.

[0028] The pores of the wire mesh can pass the stones to be cleaned; the inner wall of the extended end of the alloy drill bit 41 is provided with a ring-mounted soil extractor 45; the ring-mounted soil extractor 45 is a spiral piece 451, and the open end of the spiral piece 451 is extended out of the open end of the alloy drill bit 41. The alloy drill bit 41 is a common commercially available alloy drill bit.

[0029] When in use, the handle 2 is rotated horizontally, and the shovel rod 1 drives the wire drill bit 4 to clean the debris and gravel at the bottom of the hole. The opening of the spiral piece 451 is inserted into the soil as it rotates, mainly to clean the silt, clay, etc. The mesh structure surrounded by the wire rope 44 can rebound the reaction force through the gap around the mesh body and collect the pebbles, boulders and other stones that enter the wire mesh along the convex surface of the inclined surface toward the center area of ​​the wire mesh to achieve cleaning.

[0030] In a specific embodiment, the shovel rod 1 is made of geological drill rod or galvanized steel pipe.

[0031] In a specific embodiment, the handle 2 is disposed perpendicular to the shovel rod 1 at one end of the shovel rod 1 .

[0032] In a specific embodiment, the shovel rod 1 includes: a plurality of 1m long rod bodies, which are connected by internal and external matching threads, and each shovel rod 1 is provided with holes 12 symmetrically opened on two opposite side walls of the rod body, and the operating rod can be inserted into the hole 12 to extend the force arm to improve the cleaning efficiency and reduce the force used during cleaning; through this structure, a plurality of rod bodies can be connected according to the requirements of the shoveling position to achieve the soil cleaning position for operation.

[0033] In a specific embodiment, the steel wire rope 43 is made by cutting waste steel wire rope, and its length is the inner diameter of the alloy drill bit 41 + 2 / 3 of the inner diameter of the alloy drill bit 41, and it is divided into single strands. The excess part can be bent and placed close to the outer wall of the alloy drill bit 41.

[0034] In a specific embodiment, the mounting hole 43 is about 3 cm away from the lip of the alloy drill bit 41 and has a diameter of about 6 mm.

[0035] In a specific embodiment, the number of the mounting holes 43 depends on the specifications of the alloy drill bit 41 , and is generally 10 to 16.

[0036] In a specific embodiment, the mounting holes 43 are opened on the same cross-section side wall at a distance of 3 cm from the lip of the alloy drill bit 41 and are arranged at intervals along the circumferential direction. The lip is the periphery of the bottom surface thereof.

[0037] In a specific embodiment, the processing of the wire drill bit 4 is as follows:

[0038] Step 1: Use the waste steel wire rope as the steel wire rope 44, cut it according to the length requirement, and divide it into single strands;

[0039] Step 2: A mounting hole 43 with a diameter of 6 mm is provided along the inner wall of the drill bit at a distance of about 3 cm from the lip of the wire drill bit 4;

[0040] Step 3: Insert the cut wire rope 44 into the mounting hole 43 on the drill bit and fix it with the mounting hole 43 by welding or riveting. When setting the wire rope 44, the wire rope 44 is bent downward along the center point, and multiple wire ropes 44 are stacked to form a mesh. The mesh gaps on the wire rope 44 are larger than the diameter of the stone in the hole. When the wire drill bit 4 is rotated, the stone rebounds through the mesh gaps under the reaction force and enters the storage space above the wire rope 44, and is collected and taken out of the drill hole.

[0041] Step 5: A spiral sheet with a width of about 3 cm matching the inner diameter of the alloy drill bit 41 is welded to the inner wall of the alloy drill bit 41 as a ring-mounted soil extractor 45. The open end of the spiral sheet 451 of the ring-mounted soil extractor 45 extends toward the opening of the alloy drill bit 41.

[0042] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for cleaning sediment at the bottom of a photovoltaic power station pile foundation hole, characterized in that: A shovel rod (1) and a wire drill bit (4); one end of the shovel rod (1) is inserted into a drill hole, and the wire drill bit (4) is arranged on the inserted end; the wire drill bit (4) comprises: an alloy drill bit (41), a plurality of mounting holes (43), and a plurality of wire ropes (44); a plurality of mounting holes (43) are provided on the inner wall of the alloy drill bit (41); two ends of the wire rope (44) are respectively connected to the mounting holes (43); the plurality of wire ropes (44) form a wire mesh, the central area of ​​the wire mesh protrudes toward the open end of the alloy drill bit (41), and the gap size in the central area is smaller than the size of the stone; the gap size on the outer periphery of the wire mesh is larger than the size of the stone.

2. The device for cleaning sediment at the bottom of a photovoltaic power station pile foundation hole according to claim 1, characterized in that: include: The spiral piece (451) is accommodated in the open end of the alloy drill bit (41); the open end of the spiral piece (451) extends out of the alloy drill bit (41).

3. The device for cleaning sediment at the bottom of a photovoltaic power station pile foundation hole according to claim 1, characterized in that: include: A depth scale (11); the depth scale (11) is arranged on the outer wall of the shovel rod (1).

4. The device for cleaning sediment at the bottom of a photovoltaic power station pile foundation hole according to claim 1, characterized in that: The shovel rod (1) comprises: a plurality of rod bodies; the rod bodies are detachably connected via threads.

5. The device for cleaning sediment at the bottom of a photovoltaic power station pile foundation hole according to claim 4, characterized in that: Holes (12) are symmetrically arranged on the rod body; the operating rod is inserted into the hole (12).

6. The device for cleaning sediment at the bottom of a photovoltaic power station pile foundation hole according to claim 1, characterized in that: include: A reducing joint (3); the shovel rod (1) and the wire drill bit (4) are connected via the reducing joint (3).

7. The device for cleaning sediment at the bottom of a photovoltaic power station pile foundation hole according to claim 1, characterized in that: The shovel rod (1) is a geological drilling shovel rod (1) or a galvanized steel shovel rod (1).

8. The device for cleaning sediment at the bottom of a photovoltaic power station pile foundation hole according to claim 1, characterized in that: include: A handle (2); the handle (2) is arranged on the top surface of the shovel rod (1) and is vertically connected to the shovel rod (1).

9. The device for cleaning sediment at the bottom of a photovoltaic power station pile foundation hole according to claim 1, characterized in that: The mounting holes (43) are formed on the same cross-section side wall 3 cm away from the lip of the alloy drill bit (41) and are arranged at intervals along the circumferential direction.

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