CN220599731U - Drilling bored concrete pile drill bit - Google Patents
Drilling bored concrete pile drill bit Download PDFInfo
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- CN220599731U CN220599731U CN202322308403.XU CN202322308403U CN220599731U CN 220599731 U CN220599731 U CN 220599731U CN 202322308403 U CN202322308403 U CN 202322308403U CN 220599731 U CN220599731 U CN 220599731U
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- drill bit
- rod
- power shaft
- bit body
- clamping block
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- 238000005553 drilling Methods 0.000 title description 9
- 230000009471 action Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model relates to a bored pile drill bit which comprises a drill bit body, wherein an inserting rod is fixedly connected to the top of the drill bit body, a power shaft is arranged above the inserting rod, a slot is formed in the power shaft, two clamping blocks are symmetrically and slidingly connected to the inside of the power shaft, and one ends of the two clamping blocks are respectively provided with a first spring. The utility model has the advantages that when the drill bit body is replaced, the sliding rod is moved, the first chute at the bottom of the sliding rod is moved, the ejector rod is pushed to move downwards, the ejector rod abuts against the trapezoid groove at the top of the clamping block, the clamping block is moved, after the limit of the clamping block is lost, the inserted rod can be taken out from the slot, when a new drill bit body is installed, the inserted rod is inserted into the slot, the top of the inserted rod abuts against the inclined surface of the clamping block, the clamping block is moved, the first spring is pressed, when the clamping groove moves to the same horizontal plane as the clamping block, the clamping block enters the clamping groove under the action of the first spring, the inserted rod is fixed in the slot, and the drill bit body and the power shaft are firmly installed.
Description
Technical Field
The utility model relates to the technical field of building construction, in particular to a drill bit of a bored pile.
Background
The cast-in-place pile is a pile formed by forming pile holes in foundation soil by means of mechanical drilling, steel pipe soil squeezing, manual excavation or the like on an engineering site, placing a reinforcement cage in the pile holes, and pouring concrete into the pile holes, and the cast-in-place pile can be divided into a pipe-sinking cast-in-place pile, a drilling cast-in-place pile, a hole digging cast-in-place pile and the like according to different hole forming methods.
Through retrieving, chinese patent discloses a drill bit for bored concrete pile (grant bulletin number CN 212130403U), this patent technique includes the drill bit body, the upper end of drill bit body is provided with the guide ring, the middle part fixedly connected with guiding axle of guide ring, the lower extreme fixedly connected with fluted drill bit of guiding axle, the drill bit body is provided with the scraper, the inside fixedly connected with bracing piece of scraper, the other end and the guiding axle fixed connection of bracing piece, the inside of drill bit body is provided with the enhancement layer, the surface of drill bit body is provided with the wearing layer, this drill bit for bored concrete pile is provided with fluted drill bit, scraper and inclined blade, through the interaction between the above three, can accelerate drilling speed, be convenient for drilling work, save time cost, this drill bit for bored concrete pile is provided with the bracing piece again, enhancement layer and wearing layer, not only intensity, rigidity etc. of drill bit body can also be strengthened, make the quality of whole drill bit body better, and life is longer.
However, in the practical application process, the drill bit is inevitably damaged after being drilled for a long time, and the drill bit needs to be replaced at the moment so as to improve the drilling efficiency, and most of the existing drill bit is fixed on a power shaft, so that the drill bit is inconvenient to replace and install.
Disclosure of Invention
In view of the foregoing problems of the prior art, a primary object of the present utility model is to provide a drill bit for bored piles.
The technical scheme of the utility model is as follows: the utility model provides a drilling bored concrete pile drill bit, includes the drill bit body, the top fixedly connected with inserted bar of drill bit body, the top of inserted bar is provided with the power shaft, the inside of power shaft is provided with the slot, the inside symmetry sliding connection of power shaft has two fixture blocks, two the one end of fixture block all is provided with first spring, the outer wall of inserted bar is provided with the draw-in groove, the inside of power shaft and the top sliding connection that is located the fixture block have the ejector pin, the inside of power shaft and the top sliding connection that is located the ejector pin have the slide bar, the bottom of slide bar is provided with the first chute that the cooperation ejector pin used, the one end of slide bar is provided with the second spring.
As a preferable implementation mode, the other end of the sliding rod is rotatably connected with a first knob, and the first knob is in threaded connection with the power shaft.
As a preferable implementation mode, the top of the clamping block is provided with a trapezoid groove matched with the ejector rod.
As a preferred implementation mode, the top of the inner wall of the slot is fixedly connected with a first limiting block, and the top of the inserted link is provided with a first limiting groove matched with the first limiting block.
As a preferred implementation mode, the outer wall of the inserted link is fixedly connected with a second limiting block, and a second limiting groove matched with the second limiting block for use is formed in the power shaft.
As a preferred embodiment, the inner wall of the drill bit body is symmetrically and slidingly connected with two extension knives, and one ends of the two extension knives are respectively provided with a tension spring.
As a preferred embodiment, the inside of drill bit body and be located the top threaded connection of extension sword have the threaded rod, the top fixedly connected with second knob of threaded rod, the top of extension sword is provided with the second chute that the cooperation threaded rod used.
Compared with the prior art, the utility model has the advantages and positive effects that:
according to the utility model, when the drill bit body is replaced, the sliding rod is moved to press the second spring, the first chute at the bottom of the sliding rod is moved to press the ejector rod, the ejector rod is driven to move downwards, the bottom of the ejector rod is pressed against the trapezoid groove at the top of the clamping block, the clamping block is moved to press the first spring, after the limit of the clamping block is lost, the inserted rod can be taken out from the slot, when a new drill bit body is installed, the inserted rod is inserted into the slot, the top of the inserted rod is pressed against the inclined surface of the clamping block to move the clamping block, the first spring is pressed, and when the clamping groove moves to the same horizontal plane as the clamping block, the clamping block enters the clamping groove under the action of the first spring, so that the inserted rod is fixed in the slot, the drill bit body and the power shaft are firmly installed, and the operation quality and the use efficiency are greatly improved compared with the traditional device.
Drawings
FIG. 1 is a perspective view of the present utility model;
FIG. 2 is a cross-sectional view of the present utility model;
FIG. 3 is an enlarged view of the utility model at A;
fig. 4 is an enlarged view of the utility model at B.
Legend description: 1. a bit body; 2. a rod; 3. a power shaft; 4. a slot; 5. a clamping block; 6. a first spring; 7. a first limiting block; 8. a first limit groove; 9. a push rod; 10. a slide bar; 11. a first chute; 12. a second spring; 13. a first knob; 14. a second limiting block; 15. the second limit groove; 16. a lengthening knife; 17. a tension spring; 18. a threaded rod; 19. a second chute; 20. and a second knob.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model.
The utility model will be further described with reference to the drawings and the specific embodiments
Example 1
As shown in fig. 1 to 4, the present utility model provides a technical solution: the utility model provides a drilling bored concrete pile drill bit, including drill bit body 1, the top fixedly connected with inserted bar 2 of drill bit body 1, the top of inserted bar 2 is provided with power shaft 3, the inside of power shaft 3 is provided with slot 4, the inside symmetry sliding connection of power shaft 3 has two fixture blocks 5, the one end of two fixture blocks 5 all is provided with first spring 6, the outer wall of inserted bar 2 is provided with the draw-in groove, the inside of power shaft 3 and the top sliding connection that is located fixture block 5 have ejector pin 9, the inside of power shaft 3 and the top sliding connection that is located ejector pin 9 have slide bar 10, the bottom of slide bar 10 is provided with the first chute 11 that cooperation ejector pin 9 used, the one end of slide bar 10 is provided with second spring 12.
In this embodiment, when the bit body 1 is replaced, the sliding rod 10 is moved, the second spring 12 is pressed, the first chute 11 at the bottom of the sliding rod 10 is moved, the ejector rod 9 is abutted against, the ejector rod 9 is driven to move downwards, the bottom of the ejector rod 9 is abutted against the trapezoid groove at the top of the clamping block 5, the clamping block 5 is moved, the first spring 6 is pressed, after the limit of the clamping block 5 is lost, the inserting rod 2 can be taken out from the slot 4, when a new bit body 1 is installed, the inserting rod 2 is inserted into the slot 4, the top of the inserting rod 2 is abutted against the inclined surface of the clamping block 5, the clamping block 5 is moved, the first spring 6 is pressed, when the clamping groove moves to the same horizontal plane with the clamping block 5, the clamping block 5 enters the clamping groove under the action of the first spring 6, the inserting rod 2 is fixed in the slot 4, and the bit body 1 and the power shaft 3 are firmly installed.
Example 2
As shown in fig. 1-4, the other end of the sliding rod 10 is rotatably connected with a first knob 13, and the first knob 13 is in threaded connection with the power shaft 3; the top of the clamping block 5 is provided with a trapezoid groove matched with the ejector rod 9; the top of the inner wall of the slot 4 is fixedly connected with a first limiting block 7, and the top of the inserted link 2 is provided with a first limiting groove 8 matched with the first limiting block 7 for use; the outer wall of the inserted link 2 is fixedly connected with a second limiting block 14, and a second limiting groove 15 matched with the second limiting block 14 for use is formed in the power shaft 3; the inner wall of the drill bit body 1 is symmetrically and slidingly connected with two extension knives 16, and one ends of the two extension knives 16 are respectively provided with a tension spring 17; the inside of the drill bit body 1 and the top thread that is located the extension sword 16 are connected with threaded rod 18, and the top of threaded rod 18 fixedly connected with second knob 20, and the top of extension sword 16 is provided with the second chute 19 that the cooperation threaded rod 18 used.
In this embodiment, the first knob 13 is turned to make the first knob 13 move in the power shaft 3, so that the slide bar 10 is pushed to move, after the insert rod 2 is inserted into the slot 4, the first limiting block 7 enters the first limiting groove 8, the second limiting block 14 enters the second limiting groove 15, so that the drill bit body 1 is limited, the drill bit body 1 is prevented from loosening when the power shaft 3 rotates, when the caliber of a drilled hole needs to be enlarged, the second knob 20 is turned to drive the threaded rod 18 to move downwards, the threaded rod 18 abuts against the second chute 19, the extension knife 16 moves towards the outside of the drill bit body 1, and after the extension knife 16 stretches out of the drill bit body 1, the caliber of the drilled hole can be enlarged, so that the drill bit is suitable for construction under different conditions.
Working principle:
as shown in fig. 1-4, when the drill bit body 1 is replaced, the first knob 13 is rotated, so that the first knob 13 moves in the power shaft 3, thereby pushing the slide bar 10 to move, and pressing the second spring 12, the first chute 11 at the bottom of the slide bar 10 moves, and abuts against the ejector rod 9, and drives the ejector rod 9 to move downwards, and the bottom of the ejector rod 9 abuts against the trapezoid groove at the top of the clamping block 5, so that the clamping block 5 moves, and presses the first spring 6, after the limit of the clamping block 5 is lost, the inserting rod 2 can be taken out from the slot 4, when a new drill bit body 1 is installed, the inserting rod 2 is inserted into the slot 4, the top of the inserting rod 2 abuts against the inclined surface of the clamping block 5, so that the clamping block 5 moves, and presses the first spring 6, and when the clamping groove moves to the same horizontal plane as the clamping block 5, the clamping groove is moved, the first chute 5 enters into the clamping groove, and the inserting rod 2 is fixed in the slot 4, so that the drill bit body 1 and the shaft 3 are firmly installed, after the inserting rod 2 is inserted into the slot 4, the first limiting block 7 enters into the first limiting groove 8, and the second limiting block 14 enters into the second chute 15, and thus the second chute 14 is prevented from moving downwards, and the second chute 1 is enlarged, and the diameter of the second chute is increased, and the diameter of the drill bit body is increased, and the diameter of the drill bit is increased, and the diameter of the drill bit is increased, and the diameter is compared with the diameter is increased, and the diameter is 16.
Finally, it should be noted that: the embodiments described above are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (7)
1. Drill bit for bored piles, comprising a bit body (1), characterized in that: the drill bit comprises a drill bit body (1), wherein a inserting rod (2) is fixedly connected to the top of the drill bit body (1), a power shaft (3) is arranged above the inserting rod (2), a slot (4) is formed in the power shaft (3), two clamping blocks (5) are symmetrically and slidably connected to the inside of the power shaft (3), first springs (6) are arranged at one ends of the clamping blocks (5), clamping grooves are formed in the outer wall of the inserting rod (2), a push rod (9) is slidably connected to the inside of the power shaft (3) and above the clamping blocks (5), a slide rod (10) is slidably connected to the inside of the power shaft (3) and above the push rod (9), a first chute (11) matched with the push rod (9) is formed in the bottom of the slide rod (10), a second spring (12) is arranged at one end of the slide rod (10), and the slide rod (10) can be driven to move.
2. A bored pile drill according to claim 1, wherein: the other end of the sliding rod (10) is rotationally connected with a first knob (13), and the first knob (13) is in threaded connection with the power shaft (3).
3. A bored pile drill according to claim 1, wherein: the top of the clamping block (5) is provided with a trapezoid groove matched with the ejector rod (9).
4. A bored pile drill according to claim 1, wherein: the top fixedly connected with first stopper (7) of slot (4) inner wall, the top of inserted bar (2) is provided with first spacing groove (8) that cooperation first stopper (7) used.
5. A bored pile drill according to claim 1, wherein: the outer wall fixedly connected with second stopper (14) of inserted bar (2), the inside of power shaft (3) is provided with second spacing groove (15) that cooperation second stopper (14) used.
6. A bored pile drill according to claim 1, wherein: the inner wall of the drill bit body (1) is symmetrically and slidingly connected with two extension cutters (16), and one ends of the two extension cutters (16) are respectively provided with a tension spring (17).
7. A bored pile drill according to claim 6, wherein: the inside of drill bit body (1) and be located the top threaded connection of extension sword (16) have threaded rod (18), the top fixedly connected with second knob (20) of threaded rod (18), the top of extension sword (16) is provided with second chute (19) that cooperation threaded rod (18) used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322308403.XU CN220599731U (en) | 2023-08-25 | 2023-08-25 | Drilling bored concrete pile drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322308403.XU CN220599731U (en) | 2023-08-25 | 2023-08-25 | Drilling bored concrete pile drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220599731U true CN220599731U (en) | 2024-03-15 |
Family
ID=90172669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322308403.XU Active CN220599731U (en) | 2023-08-25 | 2023-08-25 | Drilling bored concrete pile drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220599731U (en) |
-
2023
- 2023-08-25 CN CN202322308403.XU patent/CN220599731U/en active Active
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