CN202611593U

CN202611593U - Simple drill

Info

Publication number: CN202611593U
Application number: CN 201220235873
Authority: CN
Inventors: 王宝德; 高丙山
Original assignee: China Construction Eighth Engineering Division Co Ltd
Current assignee: China Construction Eighth Engineering Division Co Ltd
Priority date: 2012-05-23
Filing date: 2012-05-23
Publication date: 2012-12-19
Anticipated expiration: 2022-05-23

Abstract

The utility model discloses a simple drill which comprises a drill core tube, a core tip, a transmission connector and a plurality of cutting stirring teeth. A tube wall of the drill core tube is provided with screw holes distributed in a spiral type, the drill tip is fixedly connected with the bottom end of the drill core tube, the transmission connector is fixedly connected with the top end of the drill core tube, and the cutting stirring teeth are fixedly connected in the screw holes on the tube wall of the drill core tube. When colliding with a hard object, the drill tip can push the object aside. Due to the fact that an alloy blade is inlaid on the drill tip, in the drilling process, abrasion of the drill tip can be reduced, the drill core tube is made of a steel pipe, slurry can be injected simultaneously, and deposited slag is taken out of a hole opening. After the cutting stirring teeth collide with the hard object, the cutting stirring teeth can remove the deposited slag on the buried object and avoid the hard object. In addition, due to the fact that the cutting stirring teeth are fixed with the drill core tube together, the cutting stirring teeth are not prone to falling. The simple drill effectively solves the problem that the buried objects are salvaged during construction of piles and has the advantages of being convenient to operate, good in processing effect, low in cost and the like.

Description

Simple and easy drill bit

Technical field

The utility model relates to building field, refers in particular to a kind of drill bit that falls the thing salvage in the mud off pore-creating filling pile work progress mesopore that is applicable to.

Background technology

Along with the construction development of modern city, the increase of agent structure load causes embedded depth of foundation to increase, and is higher to technical requirements in the work progress, and difficulty of construction increases.Because underground geotechnical engineering has regionality, concealed characteristics, various technical datas are difficult in carrying out than the deep pile foundation work progress grasps, and in work progress, very easily falls accidents such as drill bit, drilling rod, reinforcing cage.For the bigger stake hole of the degree of depth, common salvaging mode is adopted in the hole wall soil pressure hole of collapsing more easily, is difficult to successfully.Can influence the follow-up construction of engineering if deal with improperly, increase the engineering construction difficulty, cause economic loss.

Summary of the invention

In order to overcome the existing in prior technology deficiency, the utility model provides a kind of simple and easy drill bit, is buried the difficult problem that object is salvaged in the time of solving pile foundation construction effectively, have easy to operate, treatment effect good, safe and reliable, characteristics that cost is low.

The simple and easy drill bit of the utility model comprises:

One drill bit core pipe, the tube wall of the said drill bit core pipe in edge is the screw of formula distribution in the shape of a spiral;

One apex point is fixed in the bottom of said drill bit core pipe;

One drive joint is fixed in the top of said drill bit core pipe;

Complex root cutting stirrer gear is fixed in the screw of said drill bit core tube wall.

Further improvement as the utility model: the bottom of said drill bit core pipe offers a slot, and said apex point plugs and is welded in the said slot.

Further improvement as the utility model: it is wire rope that tooth is stirred in said cutting.

Further improvement as the utility model: said cutting stirrer gear passes the fixed core pipe, and is fixed in the screw of said drill bit core pipe through fastening bolt.

Further improvement as the utility model: an end of said drive joint and said drill bit core pipe are affixed, and the inner round thread mantle fiber that adopts of the other end of said drive joint connects rig power transmission drilling rod.

The utility model owing to adopting above technical scheme, making it have following beneficial effect is:

In carrying out than the deep pile foundation work progress, the drill bit of in the stake hole, falling into, drilling rod, reinforcing cage are when being buried because of the hole of collapsing, sediment are too thick; Use this practical simple drill bit to salvage, can dial when apex point is run into hard objects and let object, be convenient to creep into; Owing to stud with alloy blade on the apex point, in drilling process, can reduce the wearing and tearing of apex point, drill bit core pipe is processed by steel pipe; In drilling process, can inject mud simultaneously, take sediment out of aperture.Running into hard objects in drilling process after, the cutting stirrer gear of processing with wire rope can remove the sediment that is buried on the object; Can dodge hard objects again; And because the cutting stirrer gear is fixed in the screw on the drill bit core pipe through fixed core pipe, fastening bolt; In use difficult drop-off has been realized characteristics such as easy to operate, that treatment effect good, cost is low.

Description of drawings

Fig. 1 is the front view of the simple and easy drill bit of the utility model;

Fig. 2 is the lateral view of the simple and easy drill bit of the utility model;

Fig. 3 is the upward view of the simple and easy drill bit of the utility model;

Fig. 4 is that the simple and easy bit cutting of the utility model stirs tooth and drill bit core pipe connected node front view;

Fig. 5 is that the simple and easy bit cutting of the utility model stirs tooth and drill bit core pipe connected node lateral view;

Fig. 6 is the exploded view of the simple and easy drill bit of the utility model;

Fig. 7 is the structural representation after the simple and easy drill bit of the utility model is installed.

The specific embodiment

For the benefit of, describe below in conjunction with accompanying drawing and embodiment to the understanding of the structure of the utility model.

Cooperate Fig. 1 and shown in Figure 2, the simple and easy drill bit 1 of the utility model comprises:

One drill bit core pipe 10; Drill bit core pipe 10 is by a long 1.2m, and wall thickness is convenient to inject in the drilling process mud greater than the steel pipe manufacturing of 10mm; Object is buried in cleaning; Along the tube wall of the drill bit core pipe 10 equally distributed screw 101 of formula in the shape of a spiral, the diameter of screw 101 is 2.8cm, offers a slot 102 in the bottom of drill bit core pipe 10;

One apex point 11; Apex point 11 plugs in the slot 102 that is welded in drill bit core pipe 10 bottoms; Apex point 11 roughly becomes a triangle, in use is used for dialling letting hard objects, is convenient to clean and salvage earthing and the sediment on the object; The blade of apex point 11 studs with alloy blade, in order to reduce the wearing and tearing in the work progress;

One drive joint 12; Drive joint 12 long 20cm, wall thickness are greater than 10mm, and the caliber of drive joint 12 is greater than the caliber of drill bit core pipe 10; One end of drive joint 12 is fixedly connected with the top of drill bit core pipe 10; The inner round thread mantle fiber 121 that adopts of the other end is used to connect rig power transmission drilling rod, drives drill bit core pipe 10 and rotates and creep into a hole stirring sediment;

Complex root fixed core pipe 13, as shown in Figure 3, fixed core pipe 13 is made by welded tube, and wedge shape is processed at the two ends of fixed core pipe 13, and opening is cut by " rice " font in fixed core pipe 13 two ends;

A plurality of fastening bolts 14, the joint screw thread mantle fiber 141 of fastening bolt 14 is connected with the screw 101 of drill bit core pipe 10, and fastening bolt 14 inboards are wedge shape;

Complex root cutting stirrer gear 15; Cooperate Fig. 4 and shown in Figure 5, cutting stirrer gear 15 is made by having the soft relatively again wire rope of certain rigidity, and cutting stirrer gear 15 passes fixed core pipe 13; And it is in addition fastening through fastening bolt 14; Fastening bolt pushes fixed core pipe 13 and the cutting stirrer gear is fixedly connected in the screw 101 of drill bit core pipe 10 in fastening process, in order to avoid cutting stirrer gear 15 comes off when construction, cutting stirrer gear 15 becomes the distribution of " rice " font on drill bit core pipe 10.

Combine Fig. 6 and shown in Figure 7 again, apex point 11 is plugged in the slot 102 of the bottom that is welded in drill bit core pipe 10, drive joint 12 is rotationally connected with drill bit core pipe 10; And will cut stirrer gear 15 through fixed core pipe 13 and fastening bolt 14 and be fixed in the screw 101, before use, at first come definite length of cutting stirrer gear 15 according to the degree of depth in hole and shape, the size of being buried object; After drill bit 1 installation, drill bit 1 is probeed in the hole, let hard objects with 11 groups of apex points; Because drill bit core pipe 10 by steel pipe manufacturing, has mud to be injected in the drill bit core pipe 10 in drilling process, takes sediment out of aperture; Capable of washingly buried object, and have cutting stirrer gear 15 to stir earthing, sediment, can clear up effectively and buried object; For guaranteeing cleaning thoroughly, control drill bit 1 penetration rate floats up and down continuously in the cleaning bottom of hole process.Buried the difficult problem that object is salvaged when effectively having solved pile foundation construction, realized characteristics such as easy to operate, that treatment effect good, cost is low.

Claims

1. a simple and easy drill bit is characterized in that, comprising:

One apex point is fixed in the bottom of said drill bit core pipe;

One drive joint is fixed in the top of said drill bit core pipe;

2. simple and easy drill bit according to claim 1 is characterized in that: the bottom of said drill bit core pipe offers a slot, and said apex point plugs and is welded in the said slot.

3. simple and easy drill bit according to claim 1 is characterized in that: it is wire rope that tooth is stirred in said cutting.

4. simple and easy drill bit according to claim 1 is characterized in that: said cutting stirrer gear passes the fixed core pipe, and is fixed in the screw of said drill bit core pipe through fastening bolt extruding fixed core pipe.

5. simple and easy drill bit according to claim 1 is characterized in that: an end of said drive joint and said drill bit core pipe are affixed, and the inner round thread mantle fiber that adopts of the other end of said drive joint connects rig power transmission drilling rod.