CN210119364U

CN210119364U - Coring bit for road detection

Info

Publication number: CN210119364U
Application number: CN201920480135.0U
Authority: CN
Inventors: 傅正江; 吴华君; 林威
Original assignee: Zhejiang Yida Construction Management Co Ltd
Current assignee: Zhejiang Yida Construction Management Co Ltd
Priority date: 2019-04-10
Filing date: 2019-04-10
Publication date: 2020-02-28
Anticipated expiration: 2029-04-10

Abstract

The utility model relates to a core bit for road detection, which comprises a drill spindle body with an opening at one end, wherein the opening end of the drill spindle body is a drill core working part, the other end of the drill spindle body is a drill handle, the end surface of the drill core working part is provided with a plurality of working teeth arranged around the circumference of the drill core working part, and the inner side wall of the drill core working part is provided with inner teeth protruding towards the axial direction of the drill core working part; this core drill bit accessible is provided with further cutting to the stem excircle to can take out the stem of card in the drill bit smoothly, avoid destroying the stem when getting the stem, make operating personnel more convenient, laborsaving.

Description

Coring bit for road detection

Technical Field

The utility model relates to a road detection instrument especially relates to a core bit is got to road detection usefulness.

Background

The road needs to be detected after construction is completed to check whether the road construction meets the established standard, and the method widely used at present is to use a core extractor to extract a core column on site and bring the core column to a laboratory to obtain data. In actual field coring work, the situation that the core column is clamped in the core tube of the core bit and is difficult to take out frequently occurs, and field workers do not have a good method for quickly taking out the core column without damaging the core column, so that great trouble is brought to the workers, and a large amount of time is wasted

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a coring bit of way inspection usefulness.

The utility model adopts the technical proposal that: the utility model provides a core bit that road detection used, is including having one end open-ended drill spindle body, and the open end of drill spindle body is drill core working portion, and the other end is the drillstock, and the terminal surface of drill core working portion has a plurality of work teeth that set up around its circumference, the inside wall of drill core working portion is provided with to its axle core to outstanding internal tooth.

Furthermore, the internal teeth and the drill core working part are of an integral structure.

Further, the internal teeth are detachably mounted on the drill core working part.

Furthermore, a through hole is formed in the side wall of the drill core working portion, a screw head counter bore is formed in the outer side wall end of the through hole, a screw hole is formed in one side of the inner tooth, and the inner tooth is screwed into the screw hole through the bolt through hole to be fixed to the inner side of the drill core working portion.

Furthermore, all have a through-hole on the lateral wall of drill core work portion and on the internal tooth, drill core work portion through-hole outside end and the one end of internal tooth through-hole all have the counter bore, and the internal tooth passes through the bolt and the nut is installed in the inboard of drill core work portion.

Further, the inner side end of the through hole of the drill core working part is provided with a sinking groove matched with the shape of the inner teeth.

Further, the depth of the sink groove is less than 1/2 the thickness of the inner teeth.

Further, the external shape of the internal tooth external shape is a rhombus.

Further, the distance between the inner teeth and the working teeth is 10-50 mm.

Further, the internal teeth and the core working portion are made of diamond materials.

Compared with the prior art, the utility model, it has following beneficial effect:

the utility model discloses a core drill bit accessible of road detection usefulness is provided with the further cutting to the stem excircle to can take out the stem of card in the drill bit smoothly, avoid destroying the stem when getting the stem, make operating personnel more convenient, laborsaving.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the installation of the internal teeth of the present invention;

fig. 3 is a schematic view of the mounting of the internal teeth of the present invention in some embodiments.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the following detailed description of the present invention with reference to the accompanying drawings and embodiments is to be understood that the embodiments described herein are only used for explaining the present invention, and are not used for limiting the present invention.

As shown in fig. 1 and 2, the core bit for road detection comprises a drill spindle body 1 with an opening at one end, a drill core working part 3 at the opening end of the drill spindle body 1 and a drill handle 2 at the other end, a plurality of working teeth arranged around the circumference of the end surface of the drill core working part 3, inner teeth 4 protruding towards the axial direction of the inner side wall of the drill core working part 3, in the present embodiment, the material of the internal teeth 3 and the core work portion 3 is preferably made of diamond material, and the distance between the internal teeth 4 and the work teeth in the long direction of the drill spindle body 1 is 10mm, by arranging the inner teeth 4 with the protruding structure in the drill core working part 3, when the drill shaft body 1 drills a core column, the inner teeth 4 can cut the outer circular surface of the core column, and the diameter of the core column is smaller than that of the inner hole of the drill spindle body 1, so that the core column can be conveniently and smoothly taken down from the drill spindle body 1.

On the basis of the above-mentioned implementation, internal tooth 4 can adopt the demountable installation mode to install on boring core work portion 3, sets up through detachable structure, damages accessible when the internal tooth 4 who establishes and changes internal tooth 4, can continue to use, need not to abandon whole drill bit.

It should be noted that, a through-hole 5 has on the lateral wall of drill core working portion 3, the outside wall end of through-hole 5 has spiral shell head counter bore 6, the inboard has the heavy groove 7 that matches with 4 appearances of internal tooth, and the degree of depth of heavy groove 7 is less than 1/2 of 4 thickness of internal tooth, internal tooth 4 inlays and puts in heavy groove 7, and internal tooth 4 is close to drill core working portion 3 outside wall side and has screw 8, internal tooth 4 passes through bolt 9 and passes its screw 8 of through-hole 5 screw in and fix it in the inboard of drill core working portion 3, bolt 9 heads after fixing sink into spiral shell head counter bore 6, through this structural setting, can be convenient change internal tooth 4.

In particular, the external shape of the internal teeth 4 is a rhomboid structure.

In some embodiments, referring to fig. 3, the side wall of the drill core working portion 3 and the inner teeth 4 are both provided with a through hole 8, the outer side end of the through hole 8 of the drill core working portion 3 and one end of the through hole 8 of the inner teeth 4 are both provided with a counter bore 10, the inner teeth 4 are mounted on the inner side of the drill core working portion 3 through bolts 9 and nuts 11, the inner teeth 4 at the moment are fixed with the nuts 11 through the bolts 9, the nuts 11 are hexagon nuts for mounting convenience, and the counter bores 10 are also hexagon counter bores matched with the hexagon nuts.

In order to facilitate the installation and removal of the bolt 9, in the above embodiments, the head of the bolt 9 has a hexagonal groove to be used with a hexagonal wrench.

In some embodiments, the internal teeth 4 and the core barrel working part 3 may also be of one-piece construction.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the spirit and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by the technical solution of the present invention by those skilled in the art should fall into the protection scope of the present invention, and the technical contents claimed by the present invention have been fully recorded in the claims.

Claims

1. The utility model provides a core bit that road detection used, is including having one end open-ended drill spindle body, and the open end of drill spindle body is drill core work portion, and the other end is the drillstock, and the terminal surface of drill core work portion has a plurality of work teeth around its circumference setting, its characterized in that: the inner side wall of the drill core working part is provided with inner teeth protruding towards the axial core direction of the drill core working part.

2. A core drill for road inspection as set forth in claim 1, wherein: the internal tooth and the drill core working part are of an integrated structure.

3. A core drill for road inspection as set forth in claim 1, wherein: the internal tooth is detachably mounted on the drill core working part.

4. A core drill for road inspection as set forth in claim 3, wherein: the side wall of the drill core working part is provided with a through hole, the outer side wall end of the through hole is provided with a screw head counter bore, one side of the inner teeth is provided with a screw hole, and the inner teeth are screwed into the screw hole through the bolt through hole to be fixed on the inner side of the drill core working part.

5. A core drill for road inspection as set forth in claim 3, wherein: all have a through-hole on the lateral wall of brill core work portion and on the internal tooth, the one end of brill core work portion through-hole outside end and internal tooth through-hole all has the counter bore, and the internal tooth passes through the bolt and the nut is installed in the inboard of brill core work portion.

6. A core drill for road inspection according to claim 4 or 5, characterized in that: and the inner side end of the through hole of the drill core working part is provided with a sinking groove matched with the shape of the inner teeth.

7. A core drill for road inspection as set forth in claim 6, wherein: the depth of the sink is less than 1/2 the thickness of the inner teeth.

8. A core drill for road inspection as set forth in claim 6, wherein: the shape of the internal tooth is rhombic.

9. A core drill for road inspection according to any one of claims 1 to 5 and 7 to 8, wherein: the distance between the inner teeth and the working teeth is 10-50 mm.

10. The core drill bit for road inspection according to any one of claims 1 to 5 and 7 to 8, wherein the internal teeth and the core working portion are made of diamond material.