CN217841584U

CN217841584U - Core taking barrel

Info

Publication number: CN217841584U
Application number: CN202221439472.3U
Authority: CN
Inventors: 周松川; 孔令元; 彭华荣; 侯立波; 罗传熙; 李伟雄
Original assignee: Guangdong Provincial Highway Construction Co ltd
Current assignee: Guangdong Provincial Highway Construction Co ltd
Priority date: 2022-06-09
Filing date: 2022-06-09
Publication date: 2022-11-18
Anticipated expiration: 2032-06-09

Abstract

The utility model discloses a core barrel, which relates to the technical field of core taking equipment, and comprises a core barrel body and a push rod, wherein one end of the core barrel body is open, the other end of the core barrel body is closed, one end of the core barrel body, which is open, is fixedly connected with a drill bit, one end of the core barrel body, which is closed, is provided with a connecting part for connecting a core drilling machine, a cavity for accommodating core samples is arranged inside the core barrel body, and a plurality of through holes for communicating the cavity with the outside of the core barrel body are arranged on the core barrel body along the extending direction of the core barrel body; the push rod is provided with a push-out part, can penetrate through the through holes and stretch into the cavity from the outside of the core taking barrel body so that the push-out part is abutted to the core sample, and the push rod can push out the core sample in the cavity from the closed end of the core taking barrel body to the open end of the core taking barrel body through the push-out part. The utility model provides a core barrel can be convenient for take out and accomplish the core appearance.

Description

Core taking barrel

Technical Field

The utility model relates to a core equipment technical field especially relates to a core section of thick bamboo.

Background

The increasing traffic volume makes the requirement of road maintenance higher and higher, and not only the maintenance frequency is higher and higher, but also the frequency of detection is higher and higher, which requires that our detection equipment needs to be quickly circulated and finish the detection task quickly. In the past decades of development, nondestructive testing has become an important means for our rapid testing, however, accuracy of the nondestructive testing in the testing process has not been able to replace destructive testing, and the nondestructive testing is expensive, so that the destructive testing is still a main means for current road testing.

The asphalt pavement is a structure directly acted by vehicle load, and the health condition directly determines the service performance of the road. Asphalt pavements are generally composed of an asphalt structural layer, a water-stable structural layer, and a mat layer. The layered system enables a user to perform coring analysis when knowing the performance states of different structural layers, performs system analysis on the state of the core sample, and performs related mechanical tests on the core sample, so that the integrity of the core sample must be ensured when performing the mechanical tests. However, in the actual coring process, the core sample often cannot be taken out due to the stone block being stuck in the coring barrel, and the detection personnel need to knock the side wall to make the core sample automatically slide off. This method of operation may result in shattering of the core sample during the tapping process and is not highly likely to be successful in removing the core sample.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a core barrel to solve the problem that above-mentioned prior art exists, can be convenient for take out and accomplish the core appearance.

In order to achieve the above purpose, the utility model provides a following scheme:

the utility model provides a core barrel, including core barrel body and push rod, core barrel body one end opening, the core barrel body other end seals, core barrel body open-ended one end fixedly connected with drill bit, core barrel body closed one end has the connecting portion that are used for connecting the core drilling machine, core barrel body inside has the cavity that holds the core appearance, core barrel body is last along core barrel body extending direction set up a plurality of through-holes that communicate the cavity with the core barrel body outside; the push rod is provided with a push-out part, the push rod can penetrate through the through holes and extend into the cavity from the outside of the core taking barrel body so as to enable the push-out part to abut against the core sample, and the push rod can push the core sample in the cavity out from the closed end of the core taking barrel body to the open end of the core taking barrel body through the push-out part.

Preferably, the center lines of the plurality of through holes are located on the same straight line.

Preferably, the push rod is L-shaped, a long edge of the push rod forms a handheld part, a short edge of the push rod forms the push-out part, and the length of the short edge of the push rod is larger than the distance between any two adjacent through holes.

Preferably, a rubber pad is fixedly arranged at the end of the short side of the push rod.

Preferably, each through hole is rectangular, and an arc surface type bulge for reducing friction between the core sample and the inner wall of the core taking barrel body is arranged on the wall surface of each through hole extending along the extending direction of the core taking barrel body.

Preferably, the coring barrel body is made of manganese steel.

The utility model discloses for prior art gain following technological effect:

the utility model provides a core taking barrel, through having seted up a plurality of through-holes on core taking barrel body, pass the through-hole with the push rod and stretch into to the cavity in, can release core appearance in the cavity from core taking barrel body open-ended one end gradually, the coring process need not strike, avoids destroying core appearance, can guarantee to take out the integrality of core appearance.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of a core barrel body provided by the present invention;

fig. 2 is a top view of the core barrel body provided by the present invention;

fig. 3 is a schematic structural view of the push rod provided by the present invention;

in the figure: 100-core barrel; 1-a core barrel body; 11-a connecting portion; 12-a drill bit; 13-a through hole; 14-a bump; 2-a push rod; 21-a hand-held part; 22-a push-out section; 23-rubber pad.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

The utility model aims at providing a core barrel to solve the problem that prior art exists, can guarantee to take out the integrality of core appearance.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

The utility model provides a core barrel 100, as shown in fig. 1-3, in this embodiment, including core barrel body 1 and push rod 2, core barrel body 1 one end opening, core barrel body 1 other end is sealed, core barrel body open-ended one end fixedly connected with drill bit 12, drill bit 12 is preferably zigzag drill bit 12, drill bit 12 is the diamond material, be used for drilling the bituminous pavement structure, possess certain wearability, core barrel body 1 closed one end has connecting portion 11 that is used for connecting the core drilling machine, core barrel body 1 is inside to have the cavity that holds the core appearance, core barrel body 1 is last to set up a plurality of through-holes 13 that communicate cavity and core barrel body 1 outside along core barrel body 1 extending direction; the push rod 2 is provided with a pushing part 22, the push rod 2 can penetrate through each through hole 13 and extend into the cavity from the outside of the core taking barrel body 1 so that the pushing part 22 is abutted against the core sample, and the push rod 2 can push the core sample in the cavity from the closed end of the core taking barrel body 1 to the open end of the core taking barrel body 1 through the pushing part 22.

When core barrel 100 uses, need to be connected with the core drilling machine through connecting portion 11 with core barrel body 1 earlier, and open the core drilling machine and carry out coring work, after the coring is accomplished, pass through-hole 13 and stretch into to the cavity with push rod 2, can release the core appearance in the cavity from core barrel body 1 open-ended one end gradually, the integrality of taking out the core appearance has been guaranteed, through having seted up a plurality of through-holes 13 on core barrel body 1, for release the core appearance through push rod 2 and provide operating space, the coring process need not strike, can avoid destroying the core appearance.

The central lines of a plurality of through-holes 13 are located on the same straight line, the through-holes 13 are preferably three, the side wall of the core barrel body 1 cannot be opened completely, a mode of opening holes at intervals is adopted, the positions of the opened holes need to have a certain distance from the drill bit 12, and therefore the core barrel body 1 is prevented from deforming to directly damage a core sample.

The push rod 2 is L-shaped, a long edge of the push rod 2 forms a handheld part 21, the push rod 2 is convenient to hold to operate, a short edge of the push rod 2 forms a pushing-out part 22, the length of the short edge of the push rod 2 is larger than the distance between any two adjacent through holes 13, and it is guaranteed that a core sample can be completely taken out of the core taking barrel body 1 through sequential operation of the push rod 2 in each through hole 13.

The end part of the short side of the push rod 2 is fixedly provided with a rubber pad 23 to prevent the core sample from being damaged in the pushing process of the pushing part 22.

Each through-hole 13 all is the rectangle, all is provided with the cambered surface type arch 14 that is used for reducing friction between core appearance and the 1 inner wall of core barrel body on the wall that each through-hole 13 department extended along the 1 extending direction of core barrel body, is convenient for take out the core appearance, improves and gets core efficiency.

The coring barrel body 1 is made of manganese steel, and the coring barrel body 1 is preferably cylindrical.

The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims

1. A core barrel, characterized in that: the method comprises the following steps:

the core taking barrel comprises a core taking barrel body, wherein one end of the core taking barrel body is opened, the other end of the core taking barrel body is closed, one end of the core taking barrel body, which is opened, is fixedly connected with a drill bit, one end of the core taking barrel body, which is closed, is provided with a connecting part for connecting a core drilling machine, a cavity for accommodating a core sample is arranged inside the core taking barrel body, and a plurality of through holes for communicating the cavity with the outside of the core taking barrel body are formed in the core taking barrel body along the extending direction of the core taking barrel body;

the push rod is provided with a pushing-out part, can penetrate through the through holes and extend into the cavity from the outside of the core barrel body so that the pushing-out part is abutted against the core sample, and the push rod can push the core sample in the cavity out from the closed end of the core barrel body to the open end of the core barrel body through the pushing-out part.

2. The core barrel of claim 1, wherein: the central lines of the through holes are positioned on the same straight line.

3. The core barrel of claim 2, wherein: the push rod is L shape, the long limit of push rod forms handheld portion, the minor face of push rod forms the portion of ejecting, the minor face length of push rod is greater than arbitrary adjacent two interval between the through-hole.

4. The core barrel of claim 3, wherein: and a rubber pad is fixedly arranged at the end part of the short side of the push rod.

5. The core barrel of claim 1, wherein: each through-hole all is the rectangle, all is provided with on each through-hole department along the wall that the coring barrel body extending direction extends and is used for reducing the core appearance with the camber type arch of friction between the coring barrel body inner wall.

6. The core barrel of claim 1, wherein: the coring barrel body is made of manganese steel.