CN2599206Y

CN2599206Y - Guide drill bit

Info

Publication number: CN2599206Y
Application number: CNU032397933U
Authority: CN
Inventors: 源江; 江源
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-02-28
Filing date: 2003-02-28
Publication date: 2004-01-14
Anticipated expiration: 2013-02-28

Abstract

The utility model relates to a guide drill bit of trenchless drilling rig, comprising a drill bit body and a steel pipe, wherein, a waterway hole 1, a probe box 2, a pipe groove 6, a probe positioning pin 4 and an inclined plane 7 are arranged on the drill bit body; the drill bit body shows a cylindrical shape; the outer surface at one end of the drill bit body is provided with a thread section 5, while the position leaning to the center in axial direction is provided with the hole-shaped probe box 2; the outer surface at the other end of the drill bit body is cut into the inclined plane; the axial pipe groove 6 is arranged on the drill bit body; a steel pipe 3 is assembled in the pipe groove 6. The utility model solves the problem that the prior guide drill bits at home and abroad are difficult to process and high in manufacturing cost. The selling price of the utility model is one twentieth of the ones abroad, and each selling price is only about three hundred Yuan. The utility model realizes the accurate position and direction of the probe reflected on guide apparatus. As the cost is low and the processing and making is easy, the product qualification ratio can reach above ninety nine percent while all the indexes are better than the similar products at home and abroad, and the utility model is the ideal choice to replace the similar products.

Description

Starter

Technical field the utility model relates to a kind of starter, particularly a kind ofly lays the starter that various underground utilities non-excavating construction rigs are used.

In the background technology prior art, the directional drill of non-excavation underground pipeline construction, its advantage is to finish the laying of underground utilities without excavated pavement, it had both protected environment, did not influence traffic, and the high safe and reliable economy of efficient.Rig will realize that when operation the orientation of setting creeps into forward, the main starter that relies on, starter creeps in the stratum, operating condition is poor, particularly a large amount of masonry tile fragment and concrete residues very easily damages drill bit in the backfill, so starter big consumable accessory that is expendable, the starter major part will be from the import of external specialized factory before 1998, cost an arm and a leg, 20,000 yuan of the about RMB of each drill bit, the long-term unit in charge of construction that has rig that in the past gave causes white elephant and many inconvenience.The structure of starter is also uncomplicated in fact, as shown in Figure 7, starter mainly is made up of drill main body, water channel hole 1, probe cassette 2, wedge-shaped drill plate 8, but it is time-consuming taking a lot of work in the processing and manufacturing process, especially reach about 60 centimetres, diameter only is 0.8 centimetre off-center waterway hole, and processing charges is high.More domestic in recent years producers begin research and development and produce starter, processing charges is high because water channel hole diameter small distance is long, at present, the starter market price is about each 0.5 ten thousand yuan, and the water channel hole of this starter is above the probe alignment pin, the probe alignment pin can't be installed by the normal position, have to alignment pin transposition 180.Be contained in opposite direction, thus during the starter operation, be reflected in the orientation on the guiding instrument, the data all actual direction with drill bit are opposite, and in fact the wedge-shaped drill plate is in position up, and can be reflected on the instrument all is down, this tomorrow a left side, but be towards the right side on the instrument, usually cause illusion, workmanship and progress are affected to operating personnel.

Utility model content the purpose of this utility model is the reverse problem of probe alignment pin that solves on starter manufacturing cost height and the starter, provide a kind of structure easy, processing and fabricating is easier, economical and practical, and cost is low, safe and reliable, and the probe positions direction on the starter is reflected on the guide instrument accurate.

The technical solution of the utility model is: a kind of starter of non-digging drill, comprise drill body, steel pipe, it is characterized in that: drill body is provided with water channel hole, probe cassette, tube seat, the probe alignment pin, the inclined-plane, drill body is cylindrical, end at drill body, external surface is provided with thread segment, be provided with the probe cassette of hole shape at axial off-centre position, appearance at the other end of drill body is cut into the inclined-plane, and this inclined-plane to depth 5-30 centimetre of inclined-plane that formation cooperates with clapboard inwards, is provided with axial tube seat at the extexine of drill body from shaft pertaining, assembling steel pipe in the tube seat, tube seat and steel pipe are joined work.Tube seat is provided with water channel hole in the end of tube seat to the drill body end apart from two ends 5-50 centimetre of drill body, is provided with the probe alignment pin in the bottom of tube seat, and the Kong Peizuo on probe alignment pin and the drill body is installed together.

The water channel hole at described tube seat two ends and the water channel hole of steel pipe are concentric.

Described steel pipe is filled up by scolder after inserting tube seat, in that its car is round.

The beneficial effects of the utility model are: solved at present starter processing difficulties both at home and abroad, the problem that manufacturing cost is high, its price is external 1/20th, and is domestic 1/10th, and each cost only is about 300 yuan, and it is accurate to have realized that the probe positions direction is reflected on the guide instrument, because cost is low, processing and fabricating is easier, and product is qualified to be reached more than 99%, every index all is better than similar products at home and abroad, is that the ideal that substitutes like product is selected.

Description of drawings Fig. 1 is the organigram of starter;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is the vertical view of Fig. 1;

Fig. 4 is the right view of Fig. 3;

Fig. 5 is the decomposition organigram of starter;

Fig. 6 is the left view of Fig. 5;

Fig. 7 is the organigram of prior art starter.

Specific embodiment Figure of description be the utility model preferred embodiment, describe the situation of shape, structure and the combination thereof of starter in detail below in conjunction with accompanying drawing.

As shown in the figure: the starter of non-digging drill, by drill body, steel pipe constitutes, drill body is provided with water channel hole 1, probe cassette 2, tube seat 6, probe alignment pin 4, inclined-plane 7, drill body is cylindrical, end at drill body, external surface is provided with thread segment 5, be provided with the probe cassette 2 of hole shape at axial off-centre position, appearance at the other end of drill body is cut into the inclined-plane, and this inclined-plane to depth 5-30 centimetre of inclined-plane 7 that formation cooperates with clapboard inwards, is provided with axial tube seat 6 at the extexine of drill body from shaft pertaining, assembling steel pipe 3 in the tube seat 6, tube seat 6 is joined work with steel pipe 3.Tube seat 6 is provided with water channel hole 1 in the end of tube seat 6 to the drill body end apart from two ends 5-50 centimetre of drill body, is provided with probe alignment pin 4 in the bottom of tube seat 6, and the Kong Peizuo on probe alignment pin 4 and the drill body is installed together; The water channel hole 1 at tube seat 6 two ends and the water channel hole 1 of steel pipe 3 are concentric; Steel pipe 3 is inserted tube seat 6 backs and is filled up by scolder, in that its car is round.

The starter process is as follows: the axial surface at starter mills groove one with milling machine, promptly open " skylight ", the alleged tube seat 6 of the utility model just, again the steel pipe 3 of corresponding size is put 6 li of tube seats, dock with the manufactured water channel hole 1 in both sides again, with electric welding tube seat 6 is filled up then, again its car circle is got final product.As for solving probe alignment pin 4 problem in the other direction, also very simple, because tube seat is in the top of alignment pin, as long as milling out next tube seat bottom hole, alignment pin is put in the hole, welding is fixing, has also just finished success rate and accuracy rate 100% again.

Starter of the present utility model is through facts have proved that its effect is fine.The water channel hole of this product and import, homemade water channel hole are compared, and all unblocked, its flow, flow velocity do not have difference yet.

The drilling depth efficient of starter of the present utility model and application life and import, homemade quite, but its cost has only 1/20 of import.

Claims

1, a kind of starter of non-digging drill, comprise drill body, steel pipe, it is characterized in that: drill body is provided with water channel hole (1), probe cassette (2), tube seat (6), probe alignment pin (4), inclined-plane (7), drill body is cylindrical, end at drill body, external surface is provided with thread segment (5), be provided with the probe cassette (2) of hole shape at axial off-centre position, appearance at the other end of drill body is cut into the inclined-plane, and this inclined-plane to depth 5-30 centimetre of inclined-plane (7) that formation cooperates with clapboard inwards, is provided with axial tube seat (6) at the extexine of drill body from shaft pertaining, assembling steel pipe (3) in the tube seat (6), tube seat (6) is joined work with steel pipe (3).Tube seat (6) is provided with water channel hole (1) apart from two ends 5-50 centimetre of drill body in the end of tube seat (6) to the drill body end, be provided with probe alignment pin (4) in the bottom of tube seat (6), and the Kong Peizuo on probe alignment pin (4) and the drill body is installed together.

2, starter according to claim 1 is characterized in that: (30 water channel hole (1) is concentric for the water channel hole (1) at tube seat (6) two ends and steel pipe.

3, starter according to claim 1 is characterized in that: described steel pipe (3) is inserted tube seat (6) back and is filled up by scolder, in that its car is round.