CN202645422U - Rapid drilling device special for sand cone method - Google Patents
Rapid drilling device special for sand cone method Download PDFInfo
- Publication number
- CN202645422U CN202645422U CN 201220336563 CN201220336563U CN202645422U CN 202645422 U CN202645422 U CN 202645422U CN 201220336563 CN201220336563 CN 201220336563 CN 201220336563 U CN201220336563 U CN 201220336563U CN 202645422 U CN202645422 U CN 202645422U
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- sleeve
- support platform
- circular support
- drilling device
- drill bit
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Abstract
The utility model relates to a rapid drilling device special for a sand cone method. The rapid drilling device comprises a circular support platform, a drilling head assembly and a driving motor. Three supporting bars of retractable structures are evenly distributed on an outer periphery of the circular support platform, a center hole is arranged in a center of the circular support platform, a sleeve is fixed on the center hole, internal threads are arranged on an inner wall of the sleeve, the drilling head assembly is composed of a sleeve connected with the driving motor, a drilling head communicated with the sleeve and a spring sleeved on the drilling head, external threads are arranged on an outer surface of the drilling head which penetrates through the center hole to be in screw-thread fit with the sleeve, one end of the spring abuts against an upper surface of the circular support platform, and the other end of the spring abuts against an end portion of the sleeve. The rapid drilling device special for the sand cone method adopts three supporting bars, can effectively locate, improves location accuracy, is convenient to operate, simple in structure and high in efficiency, and needs only one hand to operate during operation.
Description
Technical field
The utility model relates to the field of drilling equipment, the special-purpose rapid drilling device of especially a kind of sand replacement method.
Background technology
Sand replacement method is applicable to the density of on-site measurement fine grained soils, sandy soil and gravelly soil, and the sample maximum particle diameter generally must not surpass 15mm.The thickness of measuring density layer is 150mm-200mm, (standard method, but not being suitable for Stone Filled Embankment etc. has the degree of compaction of macroscopic void or macrovoid material to detect) basic principle is to utilize particle diameter 0.30～0.60mm or the clean uniform sand of 0.25～0.50mm cleaning, freely fall in the examination hole from certain altitude, measure the volume (namely replacing gathering materials in the examination hole with standard sand) in examination hole by the constant principle of its unit weight, and extrapolate the actual measurement dry density of sample in conjunction with the water content of gathering materials.
In sand replacement method the most frequently used to instrument be drill, traditional drill is to be made by the different metal tube of diameter, one end fixed handle, the other end is the mouth of pipe, need to buttress on the other hand drilled object when boring, another holds the handle of drill, presses vertically downward drill in selected brill site, this drill uses very inconvenient, and the hole that drills through can not reach requirement.
Summary of the invention
The technical problems to be solved in the utility model is: in order to overcome the problem of above-mentioned middle existence, provide a kind of sand replacement method special-purpose rapid drilling device, its project organization is reasonable and simple to operate, and result of use is good.
The technical scheme that its technical problem that solves the utility model adopts is: the special-purpose rapid drilling device of a kind of sand replacement method, comprise circular support platform and drill head assembly and drive motors, described circular support platform excircle is laid with the support bar of three telescopic structures, described circular support platform center offers centre bore, be fixed with sleeve on the centre bore, offer internal thread on the sleeve lining, described drill head assembly is by the sleeve pipe that is connected with drive motors, the drill bit that is connected with sleeve pipe and the spring that is nested with on drill bit form, offer external screw thread on the described drill bit external surface, described drill bit passes centre bore and cooperates with bush whorl, one end of spring peaks at circular support platform upper surface, and the other end peaks at the end of sleeve pipe.
In order can conveniently to fix on the ground, every support bar end all is connected with sharp bar.
The beneficial effects of the utility model are: the special-purpose rapid drilling device of described a kind of sand replacement method, adopt three support bars, and can effectively position, improved positioning accuracy, it is easy to operate, simple in structure, only needs one-handed performance to get final product high efficiency during operation.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the overall structure schematic diagram of the special-purpose rapid drilling device of a kind of sand replacement method described in the utility model.
Accompanying drawing acceptance of the bid score state as follows: 1, circular support platform, 21, sleeve pipe, 22, drill bit, 22-1, external screw thread, 23, spring, 3, drive motors, 4, support bar, 5, sleeve, 51, internal thread, 6, sharp bar.
The specific embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
The special-purpose rapid drilling device of a kind of sand replacement method as shown in Figure 1, comprise circular support platform 1, be laid with the support bar 4 of three telescopic structures at circular support platform 1 excircle, all be connected with sharp bar 6 in every support bar 4 ends, circular support platform 1 center offers centre bore, be fixed with sleeve 5 on the centre bore, offer internal thread 51 on sleeve 5 inwalls, upper end at sleeve pipe 21 connects drive motors 3, the bottom of sleeve pipe 21 connects drill bit 22, be nested with spring 23 at drill bit 22, external surface at drill bit 22 offers external screw thread 22-1, drill bit 22 pass centre bore and with sleeve 5 threaded engagement, an end of spring 23 peaks at circular support platform 1 upper surface, the other end peaks at the end of sleeve pipe 21.
The special-purpose rapid drilling device of a kind of sand replacement method of the present utility model, in use, with sharp bar 6 location of support bar 4 ends of three telescopic structures on the ground, then drill bit 22 is aimed at the position that needs boring, then driving sleeve pipe 21 by drive motors 3 rotates, sleeve pipe 21 drives drill bit 22 in sleeve 5 rotations, thereby holes in the tip of drill bit 22.
Take above-mentioned foundation desirable embodiment of the present utility model as enlightenment, by above-mentioned description, the relevant staff can in the scope that does not depart from this utility model technological thought, carry out various change and modification fully.The technical scope of this utility model is not limited to the content on the manual, must determine its technical scope according to the claim scope.
Claims (2)
1. the special-purpose rapid drilling device of a sand replacement method, it is characterized in that: comprise circular support platform (1) and drill head assembly and drive motors (3), described circular support platform (1) excircle is laid with the support bar (4) of three telescopic structures, described circular support platform (1) center offers centre bore, be fixed with sleeve (5) on the centre bore, offer internal thread (51) on sleeve (5) inwall, described drill head assembly is by the sleeve pipe (21) that is connected with drive motors (3), the drill bit (22) that is connected with sleeve pipe (21) and the spring (23) that is nested with on drill bit (22) form, offer external screw thread (22-1) on described drill bit (22) external surface, described drill bit (22) pass centre bore and with sleeve (5) threaded engagement, one end of spring (23) peaks at circular support platform (1) upper surface, and the other end peaks at the end of sleeve pipe (21).
2. the special-purpose rapid drilling device of a kind of sand replacement method according to claim 1, it is characterized in that: every support bar (4) end all is connected with sharp bar (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220336563 CN202645422U (en) | 2012-07-12 | 2012-07-12 | Rapid drilling device special for sand cone method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220336563 CN202645422U (en) | 2012-07-12 | 2012-07-12 | Rapid drilling device special for sand cone method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202645422U true CN202645422U (en) | 2013-01-02 |
Family
ID=47414544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220336563 Expired - Fee Related CN202645422U (en) | 2012-07-12 | 2012-07-12 | Rapid drilling device special for sand cone method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202645422U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352655A (en) * | 2013-06-19 | 2013-10-16 | 山东华宇职业技术学院 | Hollow drill rod drilling machine unit for surface drilling |
-
2012
- 2012-07-12 CN CN 201220336563 patent/CN202645422U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352655A (en) * | 2013-06-19 | 2013-10-16 | 山东华宇职业技术学院 | Hollow drill rod drilling machine unit for surface drilling |
| CN103352655B (en) * | 2013-06-19 | 2015-11-18 | 山东华宇职业技术学院 | Ground drilling hollow drill rig group |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20130712 |