CN218235039U - Medicine adding drill bit - Google Patents
Medicine adding drill bit Download PDFInfo
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- CN218235039U CN218235039U CN202221629947.5U CN202221629947U CN218235039U CN 218235039 U CN218235039 U CN 218235039U CN 202221629947 U CN202221629947 U CN 202221629947U CN 218235039 U CN218235039 U CN 218235039U
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- drilling head
- drill bit
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- guide groove
- medicine
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Abstract
The utility model relates to the technical field of dosing drill bits, in particular to a dosing drill bit, which is characterized by comprising a drill rod, a drilling head and a spiral sheet; a drilling head is fixed on the lower part of the drill rod through threads, a spiral sheet is fixed on the outer side of the drilling head, and a central medicine guide groove is formed in the axis; the lower inner wall of the central medicine guide groove is provided with a positioning thread; the surface of the drilling head is provided with reverse threads, the axis is provided with a central medicine outlet channel, the upper end of the drilling head is provided with a first threaded connector matched with the positioning threads, and the lower end of the drilling head is provided with a medicine outlet; the lower end of the central medicine guide groove is communicated with the central medicine outlet channel, and the side surface of the central medicine guide groove is communicated with the peripheral medicine outlet channels. The utility model has the advantages that the drilling head and the drill rod can be disassembled, the drill head can be replaced under the condition of abrasion, and the internal condition can be cleaned after the operation is convenient; the reverse thread design on the surface of the drilling head can facilitate drilling more labor-saving and convenient.
Description
Technical Field
The utility model belongs to the technical field of add medicine drill bit technique and specifically relates to a add medicine drill bit.
Background
The cast-in-situ bored pile is a pile foundation type widely applied at present, and when the bearing requirement of a single pile is high, the pile foundation is required to enter hard rocks such as moderate weathering or slightly weathering and the like. At present, the in-process of drill bit is being used to the rotary drilling rig pore-forming method of commonly used, because soil or rock are too dry, soil or rock hardness be too high, the drill bit is damaged easily, the efficiency of drilling also can reduce, can produce the incident even, current drill bit is when soil or rock inside addition medicine is given in needs simultaneously, the drill hole head part of drill bit does not add the passageway of medicine, under the condition that needs pour into soil or rock with the medicine in advance, also accomplish very much the step that needs, drill rod and drill hole head can't be dismantled among the prior art simultaneously, lead to washing and change the first degree of difficulty grow of drill hole.
SUMMERY OF THE UTILITY MODEL
In order to overcome the current insufficiency, the utility model provides a flushing drill bit.
The utility model provides a technical scheme that its technical problem adopted is: a dosing drill bit is characterized by comprising a drill rod, a drilling head and a spiral sheet; a drilling head is fixed on the lower part of the drill rod through threads, a spiral sheet is fixed on the outer side of the drilling head, and a central medicine guide groove is formed in the axis; the lower inner wall of the central medicine guide groove is provided with a positioning thread; the surface of the drilling head is provided with reverse threads, the axis is provided with a central medicine outlet channel, the upper end of the drilling head is provided with a first threaded connector matched with the positioning threads, and the lower end of the drilling head is provided with a medicine outlet; the lower end of the central medicine guide groove is communicated with the central medicine outlet channel, and the side surface of the central medicine guide groove is communicated with the peripheral medicine outlet channels.
According to the utility model discloses a further embodiment, further include, the tapering of first outline cutting part of driling changes from big to little from the lower extreme to the upper end, and is transversal to personally submit the blade type.
According to the utility model discloses a further embodiment, further include, the drilling rod upper end surface is equipped with the outer lane screw thread.
According to the utility model discloses a further embodiment, further include, center is led medicine groove upper end and is equipped with hickey two, hickey two department is equipped with sealing washer one.
According to the utility model discloses a further embodiment, further include, go out the medicine passageway all around and locate in the drilling rod, switch on the drilling rod outside.
According to the utility model discloses a another embodiment, further include, threaded connection one outside is fixed with sealing washer two.
The utility model has the advantages that the drilling head and the drill rod can be disassembled, the drill head can be replaced under the condition of abrasion, and the internal condition can be cleaned after the operation is convenient; the reverse thread design on the surface of the drilling head can facilitate drilling more labor-saving and convenient.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a front view of the present invention;
fig. 3 is a cross-sectional view of the drill bit.
In the figure, 1, a drill rod 2, a drill bit 3, a spiral sheet 4, a central medicine guide groove 5, a positioning thread 6, a central medicine outlet channel 7, a first threaded connector 8, a medicine outlet 9, a peripheral medicine outlet channel 10, an outer ring thread 11, a second threaded connector 12, a first sealing ring 13 and a second sealing ring.
Detailed Description
Fig. 1 is a schematic structural diagram of the present invention, a dosing drill bit, which is characterized by comprising a drill rod 1, a drilling head 2 and a spiral plate 3; a drilling head 2 is fixed on the lower part of the drill rod 1 through threads, a spiral sheet 3 is fixed on the outer side of the drilling head, and a central medicine guide groove 4 is formed in the axis; a positioning thread 5 is arranged on the lower inner wall of the central medicine guide groove 4; the surface of the drilling head 2 is provided with reverse threads, the axis is provided with a central medicine outlet channel 6, the upper end of the drilling head is provided with a first threaded connector 7 matched with the positioning threads 5, and the lower end of the drilling head is provided with a medicine outlet 8; the lower end of the central medicine guide groove 4 is communicated with a central medicine outlet channel 6, and the side surface is communicated with peripheral medicine outlet channels 9.
According to the utility model discloses a further embodiment, further include, the tapering of 2 outline cutting parts of drilling head changes from big to little from the lower extreme to the upper end, and the transversal blade type that personally submits.
Specifically, the blade type cross section design of the drilling head 2 ensures that the cutting edge has certain cutting force, the drilling head can continue to drill downwards when hard rock is encountered, and the advantage that the taper of the outer contour edge part of the drilling head 2 changes from large to small from the lower end to the upper end is that the resistance caused by rock removal can be reduced, so that the problem of fatigue fracture of the Zu An air conditioner 2 caused by the increased resistance caused by rock removal is solved, and the service life of the drilling head 2 is prolonged.
According to another embodiment of the present invention, it further comprises that the upper end surface of the drill rod 1 is provided with an outer ring thread 10.
According to the utility model discloses a further embodiment, further include, 4 upper ends in center medicine guide groove are equipped with two 11 threaded connectors, two 11 department of threaded connectors are equipped with sealing washer 12.
Specifically, the drill bit is fixed on the rotary drilling machine through the outer ring threads 10, and the threaded connector II 11 and the sealing ring I12 are in threaded connection with a dosing water pipe in a matching mode.
According to the utility model discloses a further embodiment, further include, go out medicine passageway 9 all around and locate in drilling rod 1, switch on drilling rod 1 outside, can conveniently add the medicine to soil or rock all around.
According to the utility model discloses a further embodiment, further include, the screwed joint 7 outside is fixed with sealing washer two 13, prevents that the medicine between drilling rod 1 and the drilling head 2 from spilling, also dismantles after the completion of facilitating the use and washs, perhaps changes new drilling head 2 after wearing and tearing.
Concrete operation process fixes the drill bit on the hole machine through outer lane screw thread 10, and screwed joint two 11 and a 12 cooperation threaded connection of sealing washer add the medicine water pipe, it leads medicine groove 4 to come the liquid medicine to impress the center through adding the medicine pump with the medicine water pipe, and the reentrant is gone out medicine passageway 9 all around and is gone out in medicine passageway 6 with the center, can add the medicine for soil or rock around with the place ahead, and drilling head 2 can be because hard soil or rock are dealt with more easily to the design of outside blade type cross section, improves drilling efficiency.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (6)
1. A dosing drill bit is characterized by comprising a drill rod (1), a drilling head (2) and a spiral sheet (3); a drilling head (2) is fixed on the lower part of the drill rod (1) through threads, a spiral sheet (3) is fixed on the outer side of the drilling head, and a central medicine guide groove (4) is arranged at the axis; a positioning thread (5) is arranged on the inner wall below the inner wall of the central medicine guide groove (4); the surface of the drilling head (2) is provided with reverse threads, the axis is provided with a central medicine outlet channel (6), the upper end of the drilling head is provided with a first threaded connector (7) matched with the positioning threads (5), and the lower end of the drilling head is provided with a medicine outlet (8); the lower end of the central medicine guide groove (4) is communicated with the central medicine outlet channel (6), and the side surface is communicated with the peripheral medicine outlet channels (9).
2. The medicated drill bit as claimed in claim 1, wherein the taper of the outer profile blade of the drill bit (2) changes from large to small from the lower end to the upper end, and the cross section is blade-shaped.
3. The medicated drill bit according to claim 1, wherein the upper end surface of the drill rod (1) is provided with an outer thread (10).
4. The dosing drill bit according to claim 1, wherein a second threaded connector (11) is arranged at the upper end of the central dosing guide groove (4), and a first sealing ring (12) is arranged at the second threaded connector (11).
5. The dosing drill bit according to claim 1, characterized in that the peripheral dosing channels (9) are arranged in the drill rod (1) and are communicated with the outside of the drill rod (1).
6. The dosing drill bit according to claim 1, wherein a second sealing ring (13) is fixed on the outer side of the first threaded connector (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221629947.5U CN218235039U (en) | 2022-06-28 | 2022-06-28 | Medicine adding drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221629947.5U CN218235039U (en) | 2022-06-28 | 2022-06-28 | Medicine adding drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218235039U true CN218235039U (en) | 2023-01-06 |
Family
ID=84674202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221629947.5U Active CN218235039U (en) | 2022-06-28 | 2022-06-28 | Medicine adding drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218235039U (en) |
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2022
- 2022-06-28 CN CN202221629947.5U patent/CN218235039U/en active Active
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