CN215057179U - Improved structure of trenchless drill rod - Google Patents
Improved structure of trenchless drill rod Download PDFInfo
- Publication number
- CN215057179U CN215057179U CN202121582486.6U CN202121582486U CN215057179U CN 215057179 U CN215057179 U CN 215057179U CN 202121582486 U CN202121582486 U CN 202121582486U CN 215057179 U CN215057179 U CN 215057179U
- Authority
- CN
- China
- Prior art keywords
- rod
- buffer segment
- joint portion
- drilling rod
- buffer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses an improvement structure of non-excavation drilling rod, it includes the body of rod and protrusion in the joint portion of the body of rod, is provided with the buffer segment that a plurality of external diameter reduces in proper order between joint portion to the body of rod, between buffer segment and the joint portion, between buffer segment and the buffer segment, link up through the gentle slope transition between buffer segment and the body of rod. Above-mentioned non-excavation drilling rod's improvement structure forms cascaded transition buffer segment between the joint portion that has great height drop and the body of rod to eliminated the gravel and easily piled up the region, reduced concentrated wearing and tearing, avoided appearing card dead, the phenomenon of rupture, can not influence original drilling rod function, increased the pole wall thickness of linking department moreover, improved drilling rod intensity, promoted life.
Description
Technical Field
The utility model relates to a drilling rod technical field especially relates to an improvement structure of non-excavation drilling rod.
Background
As shown in fig. 2, the joint part 1 ' of the drill rod generally protrudes out of the rod body 2 ', and during normal use, the joint part can normally go down along the direction of the drill bit, but when going up, a gravel accumulation zone 3 ' is easily formed between the protruding joint part 1 ' and the rod body 2 ', and although the zone is rounded, the surface abrasion is easily caused due to large difference of outer diameters, so that the drilling machine is jammed seriously, and the drill rod is broken. At present, the situation is not paid enough attention, and the original use of the drill rod is easily influenced due to overlarge transformation, so that the shape of the drill rod is expected to be simply optimized, and the problems are solved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an improvement structure of non-excavation drilling rod optimizes drilling rod surface shape, eliminates the gravel as far as and piles up the district, avoids appearing the card and dies, the fracture condition.
In order to achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides an improvement structure of non-excavation drilling rod, its includes the body of rod and protrusion in the joint portion of the body of rod, is provided with the buffer segment that a plurality of external diameter reduces in proper order between joint portion to the body of rod, between buffer segment and the joint portion, between buffer segment and the buffer segment, link up through the gentle slope transition between buffer segment and the body of rod.
In particular, the length of the buffer section is 70mm to 100 mm.
In particular, the length of the gentle slope is 60 mm.
In particular, the slope of the gentle slope is less than 15 °.
To sum up, the beneficial effects of the utility model are that, compared with the prior art, the improvement structure of non-excavation drilling rod forms cascaded transition buffer segment between the joint portion that has great height drop and the body of rod to eliminated the easy region of piling up of gravel, reduced concentrated wearing and tearing, avoid appearing card death, phenomenon of rupture, can not influence original drilling rod function, increased the pole wall thickness of linking department moreover, improved drilling rod intensity, promoted life.
Drawings
Fig. 1 is a schematic view of an improved structure of a trenchless drill pipe provided by an embodiment of the present invention;
fig. 2 is a schematic structural view of a conventional trenchless drill pipe.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Referring to fig. 1, the preferred embodiment provides an improved structure of a trenchless drill pipe, which includes a rod body 2 and a joint portion 1 protruding from the rod body 2. Wherein, be provided with the buffer segment 3 that a plurality of external diameter reduces in proper order between joint portion 1 to the body of rod 2, between buffer segment 3 and joint portion 1, between buffer segment 3 and the buffer segment 3, through 4 transition links up of gentle slope between buffer segment 3 and the body of rod 2, this embodiment is in order to set up one section buffer segment 3 as the example, specifically can add according to the height drop.
Preferably, the length of the buffer section 3 is preferably 70 mm-100 mm, the length of the gentle slope 4 is preferably 60mm, and the gradient of the gentle slope 4 is smaller than 15 degrees, so as to ensure that the buffer section 3 and the gentle slope 4 are reasonable in size design, strong in structure and good in transition connection performance.
In conclusion, the improved structure of the trenchless drill rod forms a step-type transition buffer section between the joint part with larger height drop and the rod body, thereby eliminating the area where gravel is easy to accumulate, reducing centralized abrasion, avoiding the phenomena of blocking and breaking, not influencing the function of the original drill rod, increasing the rod wall thickness of the joint, improving the strength of the drill rod and prolonging the service life.
The above embodiments have been merely illustrative of the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and does not depart from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. The utility model provides an improvement structure of non-excavation drilling rod, its characterized in that includes the body of rod and protrusion in the joint portion of the body of rod, joint portion extremely be provided with the buffer segment that a plurality of external diameter reduces in proper order between the body of rod, between buffer segment and the joint portion, between buffer segment and the buffer segment, link up through the gentle slope transition between buffer segment and the body of rod.
2. The improved structure of trenchless drill pipe of claim 1 wherein: the length of the buffer section is 70 mm-100 mm.
3. The improved structure of trenchless drill pipe of claim 1 wherein: the length of gentle slope is 60 mm.
4. The improved structure of trenchless drill pipe of claim 1 wherein: the gradient of the gentle slope is less than 15 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121582486.6U CN215057179U (en) | 2021-07-12 | 2021-07-12 | Improved structure of trenchless drill rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121582486.6U CN215057179U (en) | 2021-07-12 | 2021-07-12 | Improved structure of trenchless drill rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215057179U true CN215057179U (en) | 2021-12-07 |
Family
ID=79225654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121582486.6U Active CN215057179U (en) | 2021-07-12 | 2021-07-12 | Improved structure of trenchless drill rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215057179U (en) |
-
2021
- 2021-07-12 CN CN202121582486.6U patent/CN215057179U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2014317266B2 (en) | Drill string with bend resistant coupling | |
| CN215057179U (en) | Improved structure of trenchless drill rod | |
| CN111456618B (en) | Secondary impact hydraulic breaking hammer | |
| CN219920052U (en) | Float with water-running-resistant member | |
| CN102397805A (en) | Ultrahigh-manganese cast hammer head | |
| CN204754928U (en) | Wear -resisting pick | |
| CN212027801U (en) | Novel duct piece longitudinal connector | |
| CN210134837U (en) | Side-opening strong magnetic fishing device | |
| CN208456595U (en) | A kind of toughness shaft wall structure under the high Explosive impact country rock of high pressure | |
| CN110863839A (en) | Novel duct piece longitudinal connector | |
| CN201834489U (en) | Feeding device | |
| CN218376357U (en) | Expansion buckle prevention drilling tool joint | |
| CN220057932U (en) | Protection device of pile foundation pile casing | |
| CN205606062U (en) | Antidetonation engineering elbow | |
| CN109267605A (en) | A kind of dredger guide pile | |
| CN205606061U (en) | Wear -resisting engineering elbow | |
| CN203161098U (en) | Pawl type extraction drill rod | |
| CN217152947U (en) | Energy-saving piston pin for diesel engine | |
| CN208949962U (en) | A kind of dredger guide pile | |
| CN215804386U (en) | Split alloy conical bit drill rod | |
| CN211944977U (en) | Reinforced anti-knotting compact chain vertical ring | |
| CN102828701A (en) | Wear-resisting weak-abrasiveness bionic tool joint | |
| CN212504965U (en) | Air brick | |
| CN217734147U (en) | Extension device for drill rod of breaking hammer | |
| CN215596146U (en) | A pre-buried sleeve for shield tunnel section of jurisdiction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |