CN204252105U - The formula of drilling through fetches earth bar - Google Patents
The formula of drilling through fetches earth bar Download PDFInfo
- Publication number
- CN204252105U CN204252105U CN201420698658.XU CN201420698658U CN204252105U CN 204252105 U CN204252105 U CN 204252105U CN 201420698658 U CN201420698658 U CN 201420698658U CN 204252105 U CN204252105 U CN 204252105U
- Authority
- CN
- China
- Prior art keywords
- earth
- cover
- headgear
- fetch earth
- taper sheath
- 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.)
- Withdrawn - After Issue
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to one and drills through formula and to fetch earth bar, comprises the bar body that fetches earth, and fetch earth the structure of bar body with the screw mandrel on top and the cover that fetches earth of bottom, described in the fetch earth lower end of cover be connected with taper sheath, the outer wall of the cover that fetches earth is fixed with and drills through headgear.Structure of the present utility model is simple, reasonable in design; Connect taper sheath in the lower end of the cover that fetches earth, avoid soil sample to depart from and to fetch earth cover, realize primary sample, improve sampling efficiency, the outer wall of taper sheath is equipped with the native headgear of brill, realizes the protection of taper sheath and improves sampling efficiency.
Description
Technical field
The utility model relates to geological prospecting apparatus field, particularly relates to a kind of soil sampler.
Background technology
In geological exploration field, gather earth sample and often commonly use soil sampler.Existing sampler structure comprises annular base, the center of base is fixed with guide holder, and the central slide device of guide holder fetches earth bar, and the bar that fetches earth is that upper end is with the structure of screw mandrel lower end with the cover that fetches earth, screw mandrel spiral is connected in screw rodb base, and screw rodb base is fixedly connected with annular base.The shortcoming that above-mentioned soil sampler exists is: the lower end of the bar that fetches earth is barrel shape structure, and when departing from ground after fetching earth, earth sample easily comes off in cylinder, and cause needing repeatedly to fetch earth, efficiency is low.Applicant has applied for that patent name is the patent of " bar that fetches earth of soil sampler ", employing taper sheath structure solves the problem that sample comes off in cylinder, but the shortcoming that above-mentioned patent also exists is, taper sheath is yielding when sampling, after distortion, the power taking of embracing of sample is reduced, and sample resistance increase.
Utility model content
The applicant, for above-mentioned shortcoming of the prior art, carries out studying and improving, and provides a kind of rational in infrastructure, sampling efficiency is high, the formula that drills through of long service life fetches earth bar.
The technical scheme that the utility model adopts is as follows:
One drills through formula and to fetch earth bar, comprises the bar body that fetches earth, and fetch earth the structure of bar body with the screw mandrel on top and the cover that fetches earth of bottom, described in the fetch earth lower end of cover be connected with taper sheath, the outer wall of the cover that fetches earth is fixed with and drills through headgear.
Further improvement as technique scheme:
The bottom diameter of described taper sheath is less than the internal diameter of the cover that fetches earth.
Described taper sheath is volute spring, and the spring wire cross section of described volute spring is rectangular configuration.
With external screw thread outside the lower end of the described cover that fetches earth, drill through the upper end inwall of headgear with the internal thread coordinated with described external screw thread.
The described locking through hole drilled through with its sidewall through on headgear.
The described upper end outer wall drilling through headgear is with upper arcuate guide anchor ring, and its lower end outer wall to lead anchor ring with arc lower.
The beneficial effects of the utility model are as follows:
Structure of the present utility model is simple, reasonable in design; Connect taper sheath in the lower end of the cover that fetches earth, avoid soil sample to depart from and to fetch earth cover, realize primary sample, improve sampling efficiency, the outer wall of taper sheath is equipped with the native headgear of brill, realizes the protection of taper sheath and improves sampling efficiency.
Accompanying drawing explanation
Fig. 1 is schematic perspective view of the present utility model.
Fig. 2 is stereo decomposing structure chart of the present utility model.
Fig. 3 is the perspective cross section structure chart drilling through headgear.
Wherein: 1, fetch earth bar body; 11, screw mandrel; 12, fetch earth cover; 121, external screw thread; 13, taper sheath; 14, headgear is drilled through; 141, upper arcuate guide anchor ring; 142, arc lower guiding anchor ring; 143, through hole is locked; 144, internal thread.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described.
As shown in Figure 1, the formula that drills through of the present embodiment fetches earth bar, comprises the bar body 1 that fetches earth, and fetch earth the structure of bar body 1 with the screw mandrel 11 on top and the cover 12 that fetches earth of bottom, the fetch earth lower end of cover 12 is connected with taper sheath 13, and the outer wall of the cover 12 that fetches earth is fixed with and drills through headgear 14.
As shown in Figure 2, the bottom diameter of taper sheath 13 is less than the internal diameter of the cover 12 that fetches earth, and forms one and wraps up in pack arrangement, prevent sample from coming off; Wrap up in bag ability for what strengthen taper sheath 13 further, taper sheath 13 is set to volute spring, and the spring wire cross section of volute spring is preferably rectangular configuration.
As shown in Figure 2 and Figure 3, fetch earth cover 12 lower end outside with external screw thread 121, drill through the upper end inwall of headgear 14 with the internal thread 144 coordinated with external screw thread 121, drill through the locking through hole 143 with its sidewall through on headgear 14, namely drill through after headgear 14 is connected with taper sheath 13 spiral, utilize lock-screw to lock; Drill through the upper end outer wall of headgear 14 with upper arcuate guide anchor ring 141, its lower end outer wall is with arc lower guiding anchor ring 142, and upper arcuate guide anchor ring 141 and the arc lower anchor ring 142 that leads is convenient to reduce to drill through the resistance between headgear 14 and underground ground respectively.
More than describing is to explanation of the present utility model, and be not the restriction to utility model, the utility model limited range, see claim, within protection domain of the present utility model, can do any type of amendment.
Claims (6)
1. one kind drills through formula and to fetch earth bar, comprise the bar body (1) that fetches earth, fetch earth the structure of bar body (1) with the screw mandrel (11) on top and cover (12) of fetching earth of bottom, it is characterized in that: described in the fetch earth lower end of cover (12) be connected with taper sheath (13), the outer wall of the cover (12) that fetches earth is fixed with and drills through headgear (14).
2. fetch earth bar according to claim 1, it is characterized in that: the bottom diameter of described taper sheath (13) is less than the internal diameter of cover (12) of fetching earth.
3. fetch earth bar according to claim 1 or 2, it is characterized in that: described taper sheath (13) is volute spring, and the spring wire cross section of described volute spring is rectangular configuration.
4. fetch earth bar according to claim 1, it is characterized in that: described in fetch earth cover (12) lower end outside with external screw thread (121), drill through the upper end inwall of headgear (14) with the internal thread (144) coordinated with described external screw thread (121).
5. fetch earth bar according to claim 1 or 4, it is characterized in that: described in drill through locking through hole (143) with its sidewall through on headgear (14).
6. fetch earth bar according to claim 1 or 4, it is characterized in that: described in drill through the upper end outer wall of headgear (14) with upper arcuate guide anchor ring (141), its lower end outer wall to lead anchor ring (142) with arc lower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420698658.XU CN204252105U (en) | 2014-11-19 | 2014-11-19 | The formula of drilling through fetches earth bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420698658.XU CN204252105U (en) | 2014-11-19 | 2014-11-19 | The formula of drilling through fetches earth bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204252105U true CN204252105U (en) | 2015-04-08 |
Family
ID=52956430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420698658.XU Withdrawn - After Issue CN204252105U (en) | 2014-11-19 | 2014-11-19 | The formula of drilling through fetches earth bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204252105U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104372784A (en) * | 2014-11-19 | 2015-02-25 | 无锡中地钻探装备有限公司 | Drilling type soil sampling rod |
-
2014
- 2014-11-19 CN CN201420698658.XU patent/CN204252105U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104372784A (en) * | 2014-11-19 | 2015-02-25 | 无锡中地钻探装备有限公司 | Drilling type soil sampling rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150408 Effective date of abandoning: 20161019 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |