CN205858231U - The improved structure of reverse circulation impactor - Google Patents
The improved structure of reverse circulation impactor Download PDFInfo
- Publication number
- CN205858231U CN205858231U CN201620792508.4U CN201620792508U CN205858231U CN 205858231 U CN205858231 U CN 205858231U CN 201620792508 U CN201620792508 U CN 201620792508U CN 205858231 U CN205858231 U CN 205858231U
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- CN
- China
- Prior art keywords
- drill bit
- reverse circulation
- protective cover
- scum pipe
- center
- Prior art date
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Abstract
The utility model discloses the improved structure of a kind of reverse circulation impactor, including drill bit protective cover, reverse circulation drill bit, piston, center scum pipe, cylinder, non-return valve, connection tool joint；Described reverse circulation drill bit fixes the front end being nested with at drill bit protective cover; it is provided with guiding gutter between reverse circulation drill bit and drill bit protective cover; the front end of center scum pipe is nested with in reverse circulation drill bit; the middle part of center scum pipe is put in the middle part of drill bit protective cover inner chamber by piston and cylinder fixed cover; non-return valve is socketed on the scum pipe of center, and the rear end being nested with at drill bit protective cover is fixed in connection tool joint.Owing to the gases at high pressure of the present utility model gap between drill bit protective cover and center scum pipe is injected; the waste material that reverse circulation drill bit drills through can be discharged by the charging hole on reverse circulation drill bit, center scum pipe, connection tool joint inner chamber; being easy to the collection of geological specimen, the collection of geological specimen is accurate.
Description
Technical field
This utility model relates to a kind of geological prospecting equipment, particularly relates to the improved structure of a kind of reverse circulation impactor.
Background technology
Traditional reverse circulation impactor, during probing, is intermediate conduit pressurization, adds water, and waste material passes through drill bit and brill
Gap between the inwall of hole is discharged.There is following defect in this traditional reverse circulation impactor probing: 1, waste material is to be blended in one
Rise, it is impossible to distinguishing each geological stratum is which kind of raw material is constituted, and the collection of geological specimen is inaccurate；2, during probing,
Big building stones are easily adhered on drill bit, and drill bit can wear and tear, and affect bit life, and big building stones can constantly be swiped in boring
Wall, causes drill hole inner wall to occur caving in.
Summary of the invention
The purpose of this utility model is that the improvement providing the collection reverse circulation impactor accurately of a kind of geological specimen is tied
Structure.
For achieving the above object, technical solution of the present utility model is:
This utility model is the improved structure of a kind of reverse circulation impactor, including drill bit protective cover, reverse circulation drill bit, work
Plug, center scum pipe, cylinder, non-return valve, connection tool joint；Described reverse circulation drill bit is fixed and is nested with at drill bit protective cover
Front end, is provided with guiding gutter between reverse circulation drill bit and drill bit protective cover, and the front end of center scum pipe is nested with at reverse circulation drill bit
In, the middle part of center scum pipe is put in the middle part of drill bit protective cover inner chamber by piston and cylinder fixed cover, during non-return valve is socketed in
On heart scum pipe and be positioned at the rear portion of drill bit protective cover inner chamber, the rear end being nested with at drill bit protective cover is fixed in connection tool joint；
Offering charging hole on described reverse circulation drill bit, this charging hole connects with center scum pipe leading inlet, after the scum pipe of center
Bring out mouth and connection tool joint inner space.
Described drill bit protective cover is tubular element.
This utility model also includes rear joint；Described connection tool joint is put by rear joint fixed cover and is protected at drill bit
The rear end of cover.
After using such scheme, owing to this utility model includes drill bit protective cover, reverse circulation drill bit, piston, center deslagging
Pipe, cylinder, non-return valve, rear joint, connection tool joint, the charging hole on reverse circulation drill bit of the present utility model and center deslagging
Pipe leading inlet connects, and center scum pipe back outlet and connection tool joint inner space, gases at high pressure are through drill bit protective cover
And gap between the scum pipe of center is injected, the waste material that reverse circulation drill bit drills through can by the charging hole on reverse circulation drill bit, in
Heart scum pipe, connection tool joint inner chamber are discharged, it is simple to the collection of geological specimen, the collection of geological specimen is accurate.
With specific embodiment, this utility model is further described below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is sectional view of the present utility model；
Fig. 2 is three-dimensional exploded view of the present utility model；
Fig. 3 is this utility model application example figure.
Detailed description of the invention
As shown in Figure 1 and Figure 2, this utility model is the improved structure of a kind of reverse circulation impactor, including drill bit protective cover 1,
Reverse circulation drill bit 2, piston 3, center scum pipe 4, cylinder 5, non-return valve 6, rear joint 7, connection tool joint 8.
Described drill bit protective cover 1 is tubular element.Described reverse circulation drill bit 2 is fixing to be nested with at drill bit protective cover 1
Front end, is provided with guiding gutter 21 between reverse circulation drill bit 2 and drill bit protective cover 1, and the front end of center scum pipe 4 is nested with at reacting cycle
In drill bit 2, the middle part of center scum pipe 4 is fixed be nested with in the middle part of drill bit protective cover 1 inner chamber by piston 3 and cylinder 5, non-return valve
6 are socketed on center scum pipe 4 and are positioned at the rear portion of drill bit protective cover 1 inner chamber, and connection tool joint 8 is fixed by rear joint 7
It is nested with the rear end at drill bit protective cover 1；Charging hole 22 is offered, this charging hole 22 and central row on described reverse circulation drill bit 2
Slag pipe 4 leading inlet connects, center scum pipe 4 back outlet and connection tool joint 8 inner space.
Operation principle of the present utility model:
As shown in Fig. 3, Fig. 1, this utility model 10 gases at high pressure seam between drill bit protective cover 1 and center scum pipe 4
Gap is injected, and the waste material that reverse circulation drill bit 2 drills through can be bored by the charging hole 22 on reverse circulation drill bit 2, center scum pipe 4, connection
Knock-off joint 8 inner chamber is discharged, and is transported to sample collecting point 30 through flexible pipe 20.
The above, only this utility model preferred embodiment, therefore can not limit what this utility model was implemented with this
Scope, the equivalence change i.e. made according to this utility model claim and description and modification, all should still belong to this reality
In the range of containing with new patent.
Claims (3)
1. the improved structure of a reverse circulation impactor, it is characterised in that: include drill bit protective cover, reverse circulation drill bit, piston, in
Heart scum pipe, cylinder, non-return valve, connection tool joint；Described reverse circulation drill bit fixes the front end being nested with at drill bit protective cover,
Being provided with guiding gutter between reverse circulation drill bit and drill bit protective cover, the front end of center scum pipe is nested with in reverse circulation drill bit, in
The middle part of heart scum pipe is put in the middle part of drill bit protective cover inner chamber by piston and cylinder fixed cover, and non-return valve is socketed in center deslagging
On pipe and be positioned at the rear portion of drill bit protective cover inner chamber, the rear end being nested with at drill bit protective cover is fixed in connection tool joint；Described
Offering charging hole on reverse circulation drill bit, this charging hole connects with center scum pipe leading inlet, center scum pipe back outlet
With connection tool joint inner space.
The improved structure of reverse circulation impactor the most according to claim 1, it is characterised in that: described drill bit protective cover is
Tubular element.
The improved structure of reverse circulation impactor the most according to claim 1, it is characterised in that: also include rear joint；Described
Connection tool joint put in the rear end of drill bit protective cover by rear joint fixed cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620792508.4U CN205858231U (en) | 2016-07-26 | 2016-07-26 | The improved structure of reverse circulation impactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620792508.4U CN205858231U (en) | 2016-07-26 | 2016-07-26 | The improved structure of reverse circulation impactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205858231U true CN205858231U (en) | 2017-01-04 |
Family
ID=57649194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620792508.4U Active CN205858231U (en) | 2016-07-26 | 2016-07-26 | The improved structure of reverse circulation impactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205858231U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115949336A (en) * | 2023-02-02 | 2023-04-11 | 重庆大学 | Pneumatic impactor |
-
2016
- 2016-07-26 CN CN201620792508.4U patent/CN205858231U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115949336A (en) * | 2023-02-02 | 2023-04-11 | 重庆大学 | Pneumatic impactor |
| CN115949336B (en) * | 2023-02-02 | 2024-03-29 | 重庆大学 | Pneumatic impactor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |