CN205154025U - Drill bit that construction drilling bored concrete pile was used - Google Patents
Drill bit that construction drilling bored concrete pile was used Download PDFInfo
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- CN205154025U CN205154025U CN201520882963.9U CN201520882963U CN205154025U CN 205154025 U CN205154025 U CN 205154025U CN 201520882963 U CN201520882963 U CN 201520882963U CN 205154025 U CN205154025 U CN 205154025U
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- junction plate
- polylith
- welded
- drill bit
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Abstract
The utility model discloses a drill bit that construction drilling bored concrete pile was used, it includes base rod (1), drill tip (2), first retaining ring (3), the first connecting plate of polylith (4) and scraper (5), base rod (1) top is equipped with connecting portion (6), all weld on base rod (1) the inner of the first connecting plate of polylith (4), and all weld with first retaining ring (3) the outer end of the first connecting plate of polylith (4), and weld with first connecting plate (4) by the upper end with base rod (1) welding for every scraper (5) lower extreme, this drill bit still is equipped with second retaining ring (8) and polylith second connecting plate (9), and all weld on base rod (1) the inner of polylith second connecting plate (9), and all weld with second retaining ring (8) the outer end of polylith second connecting plate (9), be equipped with vertical connecting rod (10) between two retaining rings. The hang down straightness and the smoothness of pore wall can be ensured to this drill bit.
Description
Technical field
The utility model relates to pile foundation construction field, is specifically a kind of drill bit of concrete drilling bored concrete pile of constructing.
Background technology
Concrete drilling bored concrete pile reaches hundred meters and then decrease the advantages such as a quantity because high, the strong adaptability of bearing capacity, stake are long, become domestic and international building particularly large-scale building as the base form of bridge, oil tank, liquified natural gas tank, nuclear power station first-selection.Concrete drilling bored concrete pile main construction course has: pore-forming, descending reinforcing cage, filling concrete.In above-mentioned main construction course, pore-forming is key link.In pore forming process, three wings scraper type drill bit is normally adopted to creep on stratum.
As shown in Figure 1, the three wings scraper type drill bit of prior art comprises the basic rod 101 of hollow, apex point 102, back-up ring 103, three pieces of junction plates 104 and three pieces of scrapers 105; Basic rod 101 top is provided with the connecting portion 106 for being connected with the drilling rod of rig, and specifically, the drilling rod of rig establishes the basic rod 101 of pin thread and drill bit to establish box, and both male and females coordinate tightens connection, described connecting portion 106 i.e. box; Apex point 102 is welded on basic rod 101 lower end, the inners of three pieces of junction plates 104 to be all welded on basic rod 101 and to be uniformly distributed along basic rod 101 circumference, the outer end of three pieces of junction plates 104 is all welded with the inner peripheral surface of back-up ring 103, every block scraper 105 and one piece of junction plate 104 are one group, every block scraper 105 lower end is welded with basic rod 101 and upper end is welded with that block junction plate 104 organized, the dual-side of apex point 102 lower end is welded with alloy cutting tooth 107, and the side of every block scraper 105 is also welded with alloy cutting tooth 107.During bit bore, the alloy cutting tooth 107 on apex point 102 and scraper 105 is for cutting the soil body.
The verticality of hole wall and smoothness when the drill bit of above-mentioned prior art is in order to ensure to hole, be provided with a back-up ring, in drilling process, hole wall is provided support, prevent from hole wall from collapsing to collapse, but in practical operation, especially banketing, when creeping in the loose stratum that easily collapses such as mud, layer of sand, this back-up ring is still not enough to the support of hole wall, the verticality of the hole wall of pore-forming and smoothness are still undesirable, and result causes cannot transfer a series of contingency questions such as reinforcing cage, pile body inclining be excessive smoothly.
Utility model content
The technical problems to be solved in the utility model is, is provided in banket, when creeping in the loose stratum that easily collapses such as mud, layer of sand, provide enough supports, guarantee the drill bit of the verticality of hole wall and a kind of construction drill castinplace pile of smoothness to hole wall.
Technical solution of the present utility model is, provides a kind of drill bit of construction drill castinplace pile, it comprise the basic rod of hollow, apex point, the first back-up ring, polylith first junction plate and with the same number of scraper of the first junction plate; Basic rod top is provided with connecting portion; The inner of polylith first junction plate to be all welded on basic rod and to be uniformly distributed along basic rod circumference, and the outer end of polylith first junction plate is all welded with the inner peripheral surface of the first back-up ring; Every block scraper and one piece of first junction plate are one group, and every block scraper lower end is welded with basic rod and upper end is welded with that block first junction plate organized; Apex point is welded on basic rod lower end,
This drill bit is also provided with the second back-up ring and polylith second junction plate, and the inner of polylith second junction plate to be all welded on basic rod and to be uniformly distributed along basic rod circumference, and the outer end of polylith second junction plate is all welded with the inner peripheral surface of the second back-up ring; Vertical link is provided with between first back-up ring and the second back-up ring.
The drill bit adopting a kind of construction drill castinplace pile of above structure compared with prior art, has the following advantages.
In boring procedure, because this drill bit has set up a back-up ring, like this, drill bit just increases one times to the support of hole wall, ensure that verticality and the smoothness of the hole wall of pore-forming, also just naturally avoid and cannot transfer a series of contingency questions such as reinforcing cage, pile body inclining be excessive smoothly.And be also provided with vertical link between two back-up rings, this just makes two back-up rings define overall structure, strengthens the intensity of back-up ring, guarantees the support to hole wall further, ensure verticality and the smoothness of hole wall further.
Accompanying drawing explanation
Fig. 1 be the drill bit of prior art construction drill castinplace pile face structural representation.
Fig. 2 is that the drill bit of a kind of construction drill castinplace pile of the utility model does not install the structural representation protecting muscle assembly.
Fig. 3 is that the drill bit of a kind of construction drill castinplace pile of the utility model installs the structural representation after protecting muscle assembly.
Shown in figure
The component 101 of prior art drill bit, basic rod, 102, apex point, 103, back-up ring, 104, junction plate, 105, scraper, 106, connecting portion, 107, alloy cutting tooth;
The component 1 of the utility model drill bit, basic rod, 2, apex point, the 3, first back-up ring, 4, the first junction plate, 5, scraper, 6, connecting portion, 7, alloy cutting tooth, the 8, second back-up ring, the 9, second junction plate, 10, vertical link, 11, muscle block is protected, 11.1, spiro union portion, 11.2, protect muscle portion, 12, installing plate, 13, draw-in groove.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 2 and Figure 3, the drill bit of a kind of construction drill castinplace pile of the utility model, it comprise the basic rod 1 of hollow, apex point 2, first back-up ring 3, polylith first junction plate 4 and with the same number of scraper 5 of the first junction plate 4.Three piece of first junction plate 4 and three pieces of scrapers 5 in the present embodiment.
Basic rod 1 top is provided with connecting portion 6; Specifically, the drilling rod of rig establishes the basic rod 1 of pin thread and drill bit to establish box, and both male and females coordinate tightens connection, described connecting portion 6 i.e. box.
The inner of three piece of first junction plate 4 to be all welded on basic rod 1 and to be uniformly distributed along basic rod 1 circumference, and the outer end of three piece of first junction plate 4 is all welded with the inner peripheral surface of the first back-up ring 3.Every block scraper 5 and one piece of first junction plate 4 are one group, and every block scraper 5 lower end is welded with basic rod 1 and upper end is welded with that block first junction plate 4 organized.
Basic rod 1 hollow is convenient to mud flowing, and basic rod 1 lower end is provided with under shed.Apex point 2 is welded on the lower opening of basic rod 1 lower end.The dual-side of apex point 2 lower end is welded with multiple alloy cutting tooth 7, and the side of every block scraper 5 is also welded with multiple alloy cutting tooth 7.
This drill bit is also provided with the second back-up ring 8 and second junction plate 9 the same number of with the first junction plate 4, and the present embodiment second junction plate 9 is also three pieces.The inner of three piece of second junction plate 9 to be all welded on basic rod 1 and to be uniformly distributed along basic rod 1 circumference, and the outer end of three piece of second junction plate 9 is all welded with the inner peripheral surface of the second back-up ring 8.Three piece of first junction plate 4 and three piece of second junction plate 9 one_to_one corresponding, every block first junction plate 4 and second junction plate 9 corresponding with it in the same plane.
Many vertical link 10 are provided with between first back-up ring 3 and the second back-up ring 8.Every root vertical link 10 upper end is welded with the second back-up ring 8 and lower end is welded with the first back-up ring 3.
First back-up ring 3 and the second back-up ring 8 are equipped with how group protects muscle assembly, and often group guarantor muscle assembly comprises one piece of guarantor's muscle block 11 and two pieces of installing plates 12, and two pieces of installing plates 12 with group are welded on the inner peripheral surface of the first back-up ring 3 or the second back-up ring 8.Protect muscle block 11 and be provided with the draw-in groove 13 that Open Side Down, protecting muscle block 11 is hooked on the first back-up ring 3 or the second back-up ring 8 through draw-in groove 13, protecting muscle block 11 part be positioned at inside draw-in groove 13 is spiro union portion 11.1, protect muscle block 11 and be positioned at part outside draw-in groove 13 for protecting muscle portion 11.2, spiro union portion 11.1 is provided with screw via hole, and installing plate 12 is also provided with screw via hole.The spiro union portion 11.1 protecting muscle block 11 between two pieces of installing plates 12 with group and this spiro union portion 11.1 be spirally connected with two installing plates 12 organized.
First back-up ring 3 or the second back-up ring 8 can be separated with hole wall by the existence protecting muscle portion 11.2 protecting muscle block 11, block the friction of back-up ring and hole wall, the first back-up ring 3 or the second back-up ring 8 and hole wall continuous friction damage when avoiding creeping into.After the muscle portion 11.2 that the protects wearing and tearing protecting muscle block 11 are scrapped, guarantor's muscle block 11 that screw of dismantling more renews.This design avoids to change when protecting muscle block 11 Rewelding to the damage of the first back-up ring 3 or the second back-up ring 8.
Claims (1)
1. a drill bit for construction drill castinplace pile, it comprise the basic rod (1) of hollow, apex point (2), the first back-up ring (3), polylith first junction plate (4) and with the first junction plate (4) the same number of scraper (5); Basic rod (1) top is provided with connecting portion (6); The inner of polylith first junction plate (4) is all welded on basic rod (1) and goes up and be uniformly distributed along basic rod (1) circumference, and the outer end of polylith first junction plate (4) is all welded with the inner peripheral surface of the first back-up ring (3); Every block scraper (5) and one piece of first junction plate (4) are one group, and every block scraper (5) lower end is welded with basic rod (1) and upper end is welded with that block first junction plate (4) organized; Apex point (2) is welded on basic rod (1) lower end, it is characterized in that:
This drill bit is also provided with the second back-up ring (8) and polylith second junction plate (9), the inner of polylith second junction plate (9) is all welded on basic rod (1) and goes up and be uniformly distributed along basic rod (1) circumference, and the outer end of polylith second junction plate (9) is all welded with the inner peripheral surface of the second back-up ring (8); Vertical link (10) is provided with between first back-up ring (3) and the second back-up ring (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520882963.9U CN205154025U (en) | 2015-11-06 | 2015-11-06 | Drill bit that construction drilling bored concrete pile was used |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520882963.9U CN205154025U (en) | 2015-11-06 | 2015-11-06 | Drill bit that construction drilling bored concrete pile was used |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205154025U true CN205154025U (en) | 2016-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520882963.9U Active CN205154025U (en) | 2015-11-06 | 2015-11-06 | Drill bit that construction drilling bored concrete pile was used |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205154025U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108222843A (en) * | 2018-01-05 | 2018-06-29 | 绍兴文理学院 | A kind of construction method for preventing cast-in-situ bored pile bit freezing |
| CN108590533A (en) * | 2018-06-26 | 2018-09-28 | 浙江易通基础工程有限公司 | The drill bit of construction drill bored concrete pile |
| CN111963062A (en) * | 2020-08-26 | 2020-11-20 | 浙江易通特种基础工程股份有限公司 | Drag bit for drilling ovum gravel layer during construction of height-limited space |
| CN108590533B (en) * | 2018-06-26 | 2024-05-10 | 浙江易通特种基础工程股份有限公司 | Drill bit for construction of bored pile |
-
2015
- 2015-11-06 CN CN201520882963.9U patent/CN205154025U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108222843A (en) * | 2018-01-05 | 2018-06-29 | 绍兴文理学院 | A kind of construction method for preventing cast-in-situ bored pile bit freezing |
| CN108222843B (en) * | 2018-01-05 | 2019-05-14 | 绍兴文理学院 | A kind of construction method preventing cast-in-situ bored pile bit freezing |
| CN108590533A (en) * | 2018-06-26 | 2018-09-28 | 浙江易通基础工程有限公司 | The drill bit of construction drill bored concrete pile |
| CN108590533B (en) * | 2018-06-26 | 2024-05-10 | 浙江易通特种基础工程股份有限公司 | Drill bit for construction of bored pile |
| CN111963062A (en) * | 2020-08-26 | 2020-11-20 | 浙江易通特种基础工程股份有限公司 | Drag bit for drilling ovum gravel layer during construction of height-limited space |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190110 Address after: Room 9-168, Xingnong Building, Ningbo Bonded Zone, Zhejiang Province Patentee after: Zhejiang Yitong Foundation Engineering Co. Ltd. Address before: 315800 12, 12 building, 10 East Port Road, Ningbo, Zhejiang. Patentee before: YITONG CONSTRUCTION CO., LTD. |
|
| TR01 | Transfer of patent right | ||
| CP03 | Change of name, title or address |
Address after: 315800 Xingnong building, Ningbo Free Trade Zone, Zhejiang Province Patentee after: Zhejiang Yitong Special Foundation Engineering Co.,Ltd. Address before: Room 9-168, Xingnong Building, Ningbo Bonded Zone, Zhejiang Province Patentee before: ZHEJIANG YITONG FOUNDATION ENGINEERING Co.,Ltd. |
|
| CP03 | Change of name, title or address |