CN210829234U - Along with boring sounding device with downthehole centralizer - Google Patents
Along with boring sounding device with downthehole centralizer Download PDFInfo
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- CN210829234U CN210829234U CN201921210321.9U CN201921210321U CN210829234U CN 210829234 U CN210829234 U CN 210829234U CN 201921210321 U CN201921210321 U CN 201921210321U CN 210829234 U CN210829234 U CN 210829234U
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Abstract
The utility model discloses a depth sounding while drilling device with a hole centralizer, which relates to the geotechnical engineering field and comprises a guide rod, a piercing hammer, a hammer pad, a drill rod, a centralizer and a penetration device; the hammer pad is arranged between the guide rod and the top end of the drill rod, a through hole is formed in the center of the penetrating hammer, the guide rod penetrates through the through hole of the penetrating hammer, the penetrating hammer is located above the hammer pad, and the penetrating device is detachably connected to the bottom end of the drill rod; the centralizer is cylindrical, the drill rod penetrates through the through hole of the centralizer, the centralizer is fixedly connected with the drill rod, and the diameter of the centralizer is larger than that of the drill rod; the utility model has the advantages that: through the cooperation of centralizer and drilling in the mark passes through the experiment, played limiting displacement to the drilling rod, avoid the drilling rod to appear the rolling, improve experimental accuracy.
Description
Technical Field
The utility model relates to a geotechnical engineering field, more specifically the utility model relates to a along with boring depth sounding device with downthehole centralizer.
Background
With the rapid development of municipal and intercity traffic engineering such as high-speed rail, subway, light rail and high-rise building, the engineering construction has higher and higher requirements on various aspects of engineering technology. The engineering geological condition of the construction area relates to the excellent of the engineering route selection and the selection of corresponding design parameters.
Geotechnical engineering exploration is a main means for determining engineering geological conditions of a construction area, and widely applied geotechnical exploration is mainly divided into two aspects of indoor test and in-situ test. The SPT is a main component of in-situ testing, and the standard is stipulated, and an exploration technician needs to perform the SPT strictly according to the standard requirement. Rock soil designers can judge the liquefaction range of the foundation soil by combining soil layer indoor test data according to the standard penetration number. Meanwhile, parameters such as bearing capacity, compression modulus and the like of the soil can be indirectly judged according to the penetration number of the standard.
In engineering practice, when a standard penetration test is carried out, a drill rod often shakes left and right in a drilled hole, and the standard penetration preset and actual penetration distance is inaccurate due to the fact that site distance identification means is incomplete, so that real-time recording of a geotechnical technician on the standard penetration number is influenced, and accuracy of a test result is influenced.
SUMMERY OF THE UTILITY MODEL
In order to overcome prior art not enough, the utility model provides a along with boring depth sounding device with downthehole centralizer passes through the cooperation of centralizer with drilling in the mark is run through the experiment, has played limiting displacement to the drilling rod, avoids the drilling rod to appear the roll about, improves experimental accuracy.
The utility model provides a technical scheme that its technical problem adopted is: the improvement of a depth measurement while drilling device with a hole centralizer is that: comprises a guide rod, a through hammer, a drill rod, a centralizer, a hammer pad and a penetration device;
the hammer pad is arranged between the guide rod and the top end of the drill rod, a through hole is formed in the center of the penetrating hammer, the guide rod penetrates through the through hole of the penetrating hammer, the penetrating hammer is located above the hammer pad, and the penetrating device is detachably connected to the bottom end of the drill rod;
the centralizer is cylindrical, the drill rod penetrates through the through hole of the centralizer, the centralizer is fixedly connected with the drill rod, and the diameter of the centralizer is larger than that of the drill rod.
In the structure, the drill rod is provided with a limiting part for fixing the centralizer, the diameter of the limiting part is smaller than that of the drill rod, and the diameter of the limiting part is equal to the inner diameter of the through hole of the centralizer; the head and tail ends of the limiting part are provided with annular limiting parts, and the centralizer is located between the two limiting parts.
In the structure, the side wall of the drill rod is provided with a plurality of positioning notches.
In the structure, the bottom end of the drill rod is provided with a penetrating device connecting end, and the bottom of the penetrating device connecting end is provided with a connecting tooth used for being connected with a penetrating device.
In the structure, the centralizer is made of cowhells glue.
In the above structure, the penetrating device is provided with a water outlet.
The utility model has the advantages that: after the injector drills into the stratum to form a drill hole, the outer diameter of the centralizer is slightly larger than the inner diameter of the drill hole, and the outer wall of the centralizer is in close contact with the inner wall of the drill hole, so that the drill rod can be prevented from shaking left and right in the drill hole, the drill rod is limited, and the accuracy of the test is improved.
Drawings
Fig. 1 is a schematic structural view of a depth sounding while drilling device with an in-hole centralizer according to the present invention.
Fig. 2 is a schematic structural diagram of a drill rod and a centralizer of a depth sounding while drilling device with an in-hole centralizer of the present invention.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the connection/connection relations referred to in the patent do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection auxiliary components according to specific implementation conditions. The utility model discloses each technical feature in the creation can the interactive combination under the prerequisite that does not contradict conflict each other.
Referring to fig. 1 and 2, the present invention discloses a depth sounding while drilling device with a hole centralizer, specifically, the device includes a guide rod 10, a piercing hammer 20, a drill rod 30, a centralizer 40, a hammer pad 60 and a penetrating device 50; the hammer pad 60 is arranged between the guide rod 10 and the top end of the drill rod 30, a through hole is formed in the center of the through hammer 20, the guide rod 10 penetrates through the through hole of the through hammer 20, the through hammer 20 is located above the hammer pad 60, and the penetrating device 50 is detachably connected to the bottom end of the drill rod 30; in this embodiment, the pad 60 is in the shape of a circular truncated cone, and the penetrating hammer 20 slides on the guide rod 10, strikes on the pad 60, and transmits force through the drill rod 30 to drill the injector 50 into a specified stratum.
As shown in fig. 2, the centralizer 40 is cylindrical, the drill rod 30 passes through the through hole of the centralizer 40, the centralizer 40 is fixedly connected with the drill rod 30, and the diameter of the centralizer 40 is larger than that of the drill rod 30. In this embodiment, the drill rod 30 is provided with a limiting part for fixing the centralizer 40, the diameter of the limiting part is smaller than that of the drill rod 30, and the diameter of the limiting part is equal to the inner diameter of the through hole of the centralizer 40; the head and the tail ends of the limiting part are provided with annular limiting parts 301, the centralizer 40 is located between the two limiting parts 301, therefore, in the process of the standard penetration test, after the injector 50 drills into the stratum to form a drill hole, because the outer diameter of the centralizer 40 is slightly larger than the inner diameter of the drill hole, the outer wall of the centralizer 40 is in close contact with the inner wall of the drill hole, so that the drill rod 30 can be prevented from shaking left and right in the drill hole, the limiting effect on the drill rod 30 is achieved, and the test accuracy is improved. In this embodiment, the material of centralizer is sticky for the cowhells, has the advantage that elasticity is good, the wearability is strong.
Further, in the above embodiment, the side wall of the drill rod 30 is provided with a plurality of positioning notches 302, wherein at least two positioning notches 302 are located on different vertical surfaces, so as to axially limit the drill rod 30 and facilitate connection between a plurality of drill rods 30, in addition, the bottom end of the drill rod 30 is provided with a penetration unit connecting end 303, the bottom of the penetration unit connecting end 303 is provided with a connecting tooth 304 for connecting with the penetration unit 50, the connection with the penetration unit 50 is realized through the connecting tooth 304, and the penetration unit 50 is provided with a water outlet hole 501.
While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined by the appended claims.
Claims (6)
1. A depth measurement while drilling device with a hole centralizer is characterized in that: comprises a guide rod, a through hammer, a hammer pad, a drill rod, a centralizer and a penetration device;
the hammer pad is arranged between the guide rod and the top end of the drill rod, a through hole is formed in the center of the penetrating hammer, the guide rod penetrates through the through hole of the penetrating hammer, the penetrating hammer is located above the hammer pad, and the penetrating device is detachably connected to the bottom end of the drill rod;
the centralizer is cylindrical, the drill rod penetrates through the through hole of the centralizer, the centralizer is fixedly connected with the drill rod, and the diameter of the centralizer is larger than that of the drill rod.
2. The apparatus of claim 1, wherein the depth measurement while drilling device comprises a centralizer, the centralizer comprising: the drill rod is provided with a limiting part for fixing the centralizer, the diameter of the limiting part is smaller than that of the drill rod, and the diameter of the limiting part is equal to the inner diameter of the through hole of the centralizer; the head and tail ends of the limiting part are provided with annular limiting parts, and the centralizer is located between the two limiting parts.
3. The apparatus of claim 2, wherein the depth measurement while drilling device comprises a centralizer, the centralizer comprising: and a plurality of positioning notches are formed in the side wall of the drill rod.
4. The apparatus of claim 2, wherein the depth measurement while drilling device comprises a centralizer, the centralizer comprising: the bottom of drilling rod is provided with the penetrating ware link, and the bottom of penetrating ware link has the connection tooth that is used for being connected with the penetrating ware.
5. The apparatus of claim 1, wherein the depth measurement while drilling device comprises a centralizer, the centralizer comprising: the centralizer is made of cowhells glue.
6. The apparatus of claim 1, wherein the depth measurement while drilling device comprises a centralizer, the centralizer comprising: the penetrating device is provided with a water outlet hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921210321.9U CN210829234U (en) | 2019-07-29 | 2019-07-29 | Along with boring sounding device with downthehole centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921210321.9U CN210829234U (en) | 2019-07-29 | 2019-07-29 | Along with boring sounding device with downthehole centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210829234U true CN210829234U (en) | 2020-06-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921210321.9U Active CN210829234U (en) | 2019-07-29 | 2019-07-29 | Along with boring sounding device with downthehole centralizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210829234U (en) |
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2019
- 2019-07-29 CN CN201921210321.9U patent/CN210829234U/en active Active
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