CN210817597U - Novel strike hole saw - Google Patents
Novel strike hole saw Download PDFInfo
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- CN210817597U CN210817597U CN201921846555.2U CN201921846555U CN210817597U CN 210817597 U CN210817597 U CN 210817597U CN 201921846555 U CN201921846555 U CN 201921846555U CN 210817597 U CN210817597 U CN 210817597U
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- hole
- boss
- drill bit
- hole saw
- end cover
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Abstract
The utility model discloses a novel strike hole saw, include the end cover, connect pole and drill bit, the cross-section of end cover is established to T shape, apron and boss including an organic whole, the axle center position of end cover is equipped with the through-hole along the axial, the lateral part of the boss of end cover is equipped with the screw thread through-hole, the apron is kept away from one side fixed connection of boss is equipped with annular hole saw, connect the pole to peg graft in the through-hole, establish to the polygon prism structure one side of pole, be equipped with the ring channel on the polygon prism structure of pole, the opposite side of pole is established to the cylinder structure, the tip that connects the pole to be located the cylinder structure is equipped with the blind hole, the drill bit is fixed to be pegged graft on the blind hole, it is close to connect the pole be equipped with the screw thread blind hole on the. Compared with the prior art, the utility model the advantage lie in: this novel strike hole saw convenient the change, stable in structure is reliable, reduces the replacement cost.
Description
Technical Field
The utility model relates to an strike hole saw technical field, specifically indicate a novel strike hole saw.
Background
The impact hole saw is commonly used on a handheld tool and used for drilling and punching and comprises a drill bit, a hole saw and a connecting rod, at present, the connecting rod and the hole saw of the traditional impact hole saw are connected in a fixed welding mode, so that the drill bit is easy to damage under the condition of high-strength operation, but the hole saw is still in a normal state, and because the whole part is scrapped due to the damage of the drill bit, the great waste is caused, the use cost is increased, the problems are all to be improved, and therefore the improvement is needed.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome above technical defect, provide a convenient change, reliable and stable in structure's a novel strike hole saw.
In order to solve the technical problem, the utility model provides a technical scheme does: the utility model provides a novel strike hole saw, includes the end cover, connects pole and drill bit, the cross-section of end cover is established to T shape, apron and boss including an organic whole, the axle center position of end cover is equipped with the through-hole along the axial, the lateral part of the boss of end cover is equipped with the screw thread through-hole, the apron is kept away from one side fixed connection of boss is equipped with annular hole saw, connect the pole and peg graft in the through-hole, the one side of connecting the pole is established to the polygon prism structure, be equipped with the ring channel on the polygon prism structure of connecting the pole, the opposite side of connecting the pole is established to the cylinder structure, it is equipped with the blind hole to connect the tip that the pole is located the cylinder structure, the drill bit is fixed to be pegged graft on the blind hole, it is close.
Compared with the prior art, the utility model the advantage lie in: a novel impact hole saw comprises an end cover, a connecting rod and a drill bit, wherein the cross section of the end cover is T-shaped, the novel impact hole saw comprises an integrated cover plate and a boss, a through hole is axially formed in the axis position of the end cover, the connecting rod is conveniently inserted, a threaded through hole is formed in the side portion of the boss of the end cover, the end cover and the connecting rod are fixedly connected through a stud, an annular hole saw is fixedly connected to one side, away from the boss, of the cover plate, a hole can be conveniently formed, the connecting rod is inserted into the through hole, a polygonal column structure is formed in one side of the connecting rod, an annular groove is formed in the polygonal column structure of the connecting rod, the other side of the connecting rod is a cylindrical structure, the connecting rod is conveniently connected with a handheld electric tool, a blind hole is formed in the end portion, located on the cylindrical structure, of the connecting, the connecting rod is close to the threaded blind hole formed in the outer side face of the drill bit, the threaded through hole is coaxial with the threaded blind hole, so that the end cover and the connecting rod can be conveniently and fixedly connected through the double-screw bolt, and the drill bit is sleeved with a pressure spring.
As an improvement, one side of the cover plate, which is far away from the boss, is provided with a chamfer, and one end of the boss, which is far away from the cover plate, is provided with a chamfer, so that burrs can be removed, stress is released during heat treatment, and an assembly orientation effect can be achieved.
As an improvement, the side part of the hole saw is uniformly provided with 2 to 4 chip removal holes, so that chip removal is convenient during drilling.
As a modification, the diameter of the cover plate is set to be 10-50 mm, and the outermost diameter of the boss is set to be 15-25 mm.
As a refinement, the threaded through-hole is dimensioned from M3 to M8.
As an improvement, the diameter of the threaded blind hole is set to be 2-5 mm, and the distance between the outer tangent plane of the inner side wall of the threaded blind hole close to the drill bit and the end face of the extension rod close to the end cover is set to be 4-7 mm.
As a refinement, the hole depth of the blind hole is set to 3 to 6 mm.
As an improvement, the drill bit is inserted into the blind hole and fixedly connected with the connecting rod through welding.
Drawings
Fig. 1 is a schematic view of the overall structure of the novel percussion hole saw of the present invention.
Fig. 2 is a structural sectional view of an end cap of a novel percussion hole saw of the present invention.
Fig. 3 is a partial enlarged view of the end cap of a novel percussion hole saw of the present invention.
Fig. 4 is a schematic view of a connecting rod of the novel percussion hole saw of the present invention.
Fig. 5 is a side view of a extension rod of a novel percussion hole saw of the present invention.
As shown in the figure: 1. the device comprises an end cover, 2, a connecting rod, 3, a drill bit, 4, a cover plate, 5, a boss, 6, a through hole, 7, a threaded through hole, 8, a hole saw, 9, an annular groove, 10, a blind hole, 11, a threaded blind hole, 12, a pressure spring, 13, a corner cleaning, 14, a chamfer, 15 and a chip removal hole.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The utility model provides a novel impact hole saw when in concrete implementation, which comprises an end cover 1, a connecting rod 2 and a drill bit 3, wherein the cross section of the end cover 1 is designed into T shape, the end cover comprises an integrated cover plate 4 and a boss 5, a through hole 6 is axially arranged at the axis position of the end cover 1, a thread through hole 7 is arranged at the side part of the boss 5 of the end cover 1, a ring-shaped hole saw 8 is fixedly connected at one side of the cover plate 4 far away from the boss 5, the connecting rod 2 is inserted in the through hole 6, one side of the connecting rod 2 is designed into a polygon prism structure, an annular groove 9 is arranged on the polygon prism structure of the connecting rod 2, the other side of the connecting rod 2 is designed into a cylinder structure, a blind hole 10 is arranged at the end part of the cylinder structure, the drill bit 3 is fixedly inserted in the blind hole 10, a thread blind hole 11 is arranged on the outer side surface of the, the drill bit 3 is sleeved with a pressure spring 12.
One side of the cover plate 4, which is far away from the boss 5, is provided with a chamfer 13, and one end of the boss 5, which is far away from the cover plate 4, is provided with a chamfer 14.
The side part of the hole saw 8 is evenly distributed with 2 to 4 chip removal holes 15.
The diameter of the cover plate 4 is set to be 10 to 50 mm, and the outermost diameter of the boss 5 is set to be 15 to 25 mm.
The threaded through-hole 7 is sized M3 to M8.
The diameter of the threaded blind hole 11 is set to be 2-5 mm, and the distance between the outer tangent plane of the inner side wall of the threaded blind hole 11 close to the drill bit 3 and the end face of the extension rod 2 close to the end cover 1 is set to be 4-7 mm.
The depth of the blind hole 10 is set to 3 to 6 mm.
The drill bit 3 is inserted into the blind hole 10, and the drill bit 3 is fixedly connected with the connecting rod 2 through welding.
The utility model discloses a theory of operation is: the utility model discloses a novel strike hole saw convenient change, stable in structure is reliable, reduces the replacement cost, and at present, the extension rod and the hole saw of traditional strike hole saw adopt fixed welding mode to connect, when the drill bit takes place to damage, when other parts are normal, because fixed connection leads to whole part to scrap, causes very big waste, the use cost that increases, to these circumstances, this novel strike hole saw, including end cover 1, extension rod 2 and drill bit 3, the cross-section of end cover 1 is set up to T shape, including integrative apron 4 and boss 5, the diameter size of apron 4 is set up to 25 millimeters, the outside diameter size of boss 5 is set up to 17 millimeters, the one side that apron 4 kept away from boss 5 is equipped with angle 13, the one end that boss 5 kept away from apron 4 is equipped with chamfer 14, can add the burring through chamfer 14, stress is released during heat treatment, the directional effect of assembly can be achieved, a through hole 6 is axially formed in the axis position of the end cover 1, the connecting rod 2 is convenient to insert, a threaded through hole 7 is formed in the side portion of a boss 5 of the end cover 1, the cover plate 4 is far away from one side of the boss 5 and is fixedly connected with an annular hole saw 8, 2 chip removal holes 15 are uniformly distributed in the side portion of the hole saw 8, after the connecting rod is started and powered on, the hole saw 8 can rotate at a high speed to conveniently open a hole, the chip removal holes 15 can conveniently remove chips, the connecting rod 2 is inserted into the through hole 6, the heat treatment hardness of the connecting rod 2 is set to be 45HRC, one side of the connecting rod 2 is set to be of a polygonal column structure, an annular groove 9 is formed in the polygonal column structure of the connecting rod 2, the structure of the polygonal column structure and the annular groove 9 is convenient to match the connecting rod, the end part of the extension rod 2, which is located at the cylindrical structure, is provided with a blind hole 10, the depth of the blind hole 10 is set to be 6 mm, the drill bit 3 is inserted into the blind hole 10, the drill bit 3 is sleeved with a pressure spring 12, the drill bit 3 is fixedly connected with the extension rod 2 through welding, stable connection of the extension rod 2 and the drill bit 3 can be realized, the extension rod 2 is close to the outer side surface of the drill bit 3 and is provided with a threaded blind hole 11, the threaded through hole 7 and the threaded blind hole 11 are coaxial, the size of the threaded through hole 7 is set to be M5, the diameter of the threaded blind hole 11 is set to be 5 mm, the distance between the outer tangent plane of the inner side wall of the threaded blind hole 11, which is close to the drill bit 3, and the end surface of the extension rod 2, which is close to the end cover 1, is set to.
The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.
Claims (8)
1. The utility model provides a novel strike hole saw, includes end cover (1), connects pole (2) and drill bit (3), its characterized in that: the cross section of the end cover (1) is T-shaped and comprises a cover plate (4) and a boss (5) which are integrated, a through hole (6) is axially formed in the axis position of the end cover (1), a threaded through hole (7) is formed in the side portion of the boss (5) of the end cover (1), an annular hole saw (8) is fixedly connected to one side, away from the boss (5), of the cover plate (4), a connecting rod (2) is inserted into the through hole (6), one side of the connecting rod (2) is of a polygonal column structure, an annular groove (9) is formed in the polygonal column structure of the connecting rod (2), the other side of the connecting rod (2) is of a cylindrical structure, a blind hole (10) is formed in the end portion, located on the cylindrical structure, of the connecting rod (2), a drill bit (3) is fixedly inserted into the blind hole (10), a threaded blind hole (11) is formed in the outer side, close, the threaded through hole (7) is coaxial with the threaded blind hole (11), and the drill bit (3) is sleeved with a pressure spring (12).
2. A novel percussion hole saw as claimed in claim 1, wherein: the cover plate (4) is far away from one side of the boss (5) and is provided with a chamfer (13), and one end, far away from the cover plate (4), of the boss (5) is provided with a chamfer (14).
3. A novel percussion hole saw as claimed in claim 1, wherein: the side part of the hole saw (8) is uniformly distributed with 2 to 4 chip removal holes (15).
4. A novel percussion hole saw as claimed in claim 1, wherein: the diameter of the cover plate (4) is set to be 10-50 mm, and the outermost side of the boss (5) is set to be 15-25 mm.
5. A novel percussion hole saw as claimed in claim 1, wherein: the threaded through-hole (7) is sized from M3 to M8.
6. A novel percussion hole saw as claimed in claim 1, wherein: the diameter of the threaded blind hole (11) is set to be 2-5 mm, and the distance between the outer tangent plane of the inner side wall of the threaded blind hole (11) close to the drill bit (3) and the end face of the extension rod (2) close to the end cover (1) is set to be 4-7 mm.
7. A novel percussion hole saw as claimed in claim 1, wherein: the depth of the blind hole (10) is set to 3 to 6 mm.
8. A novel percussion hole saw as claimed in claim 1, wherein: the drill bit (3) is inserted into the blind hole (10), and the drill bit (3) is fixedly connected with the connecting rod (2) through welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921846555.2U CN210817597U (en) | 2019-10-30 | 2019-10-30 | Novel strike hole saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921846555.2U CN210817597U (en) | 2019-10-30 | 2019-10-30 | Novel strike hole saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210817597U true CN210817597U (en) | 2020-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921846555.2U Active CN210817597U (en) | 2019-10-30 | 2019-10-30 | Novel strike hole saw |
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| Country | Link |
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| CN (1) | CN210817597U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110640189A (en) * | 2019-10-30 | 2020-01-03 | 扬州昇业机械有限公司 | Novel strike hole saw |
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2019
- 2019-10-30 CN CN201921846555.2U patent/CN210817597U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110640189A (en) * | 2019-10-30 | 2020-01-03 | 扬州昇业机械有限公司 | Novel strike hole saw |
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