CN212217195U - Drill bit easy to radiate heat - Google Patents
Drill bit easy to radiate heat Download PDFInfo
- Publication number
- CN212217195U CN212217195U CN202020561600.6U CN202020561600U CN212217195U CN 212217195 U CN212217195 U CN 212217195U CN 202020561600 U CN202020561600 U CN 202020561600U CN 212217195 U CN212217195 U CN 212217195U
- Authority
- CN
- China
- Prior art keywords
- water outlet
- drill
- water
- outlet nozzle
- bottom cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 201
- 230000017525 heat dissipation Effects 0.000 claims abstract description 21
- 238000005553 drilling Methods 0.000 claims description 25
- 239000000428 dust Substances 0.000 abstract description 17
- 238000003754 machining Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 5
- 125000003003 spiro group Chemical group 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011343 solid material Substances 0.000 description 2
- 239000008400 supply water Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
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Abstract
The utility model provides a drill bit with easy heat dissipation, which comprises a drill handle, a drill rod, a chip groove arranged on the drill rod, and a heat dissipation mechanism, the drill handle is provided with external threads, a convex ring is arranged at the joint of the drill handle and the drill rod, the heat dissipation mechanism comprises a bottom cover screwed on the drill handle, a first water outlet nozzle arranged at the bottom of the bottom cover and a water tank screwed on the drill handle and abutted against the top of the bottom cover, the bottom cover is provided with a water storage cavity with an opening at the top, the bottom of the water storage cavity is inserted with a water outlet pipe communicated with the water storage cavity, the outer circumferential wall at the bottom end of the water outlet pipe is provided with a limiting ring, the first water outlet nozzle comprises a sleeve joint part sleeved at the bottom end of the water outlet pipe and a water outlet part arranged at the bottom end of the sleeve joint part, the inner wall of the sleeve joint part is provided with a limiting groove matched with the limiting ring, and the first water outlet nozzle is opened and closed relative to the water outlet pipe in a pull mode. The utility model discloses dust exhaust, radiating effect are good, effectively improve the machining efficiency of work piece.
Description
Technical Field
The utility model relates to a cutting tool technical field, concretely relates to easy radiating drill bit.
Background
The drill is a tool for drilling through holes or blind holes in solid materials and reaming existing holes. Commonly used drill bits mainly include twist drills, flat drills, center drills, deep hole drills, and trepanning drills. Reamers and reamers are not capable of drilling solid materials, but they are also traditionally classified as drills.
The drill bit which is easy to dissipate heat is not sold in the market, and the existing drill bit is difficult to remove dust and difficult to dissipate heat, so that the working efficiency is reduced, and the processing cost of workpieces is increased. The existing drill bit is provided with a water passage in the axial phase direction to dissipate heat, so that the strength of the drill bit is easily reduced, and a drill rod part of the drill bit is easily broken.
SUMMERY OF THE UTILITY MODEL
Based on the problem, the utility model aims to provide an intensity is high, and heat dissipation, dust exhaust are effectual, effectively improve work efficiency, greatly reduced the drill bit of work piece processing cost.
Aiming at the problems, the following technical scheme is provided: a drill bit easy to dissipate heat comprises a drill handle, a drill rod and a heat dissipation mechanism, wherein a chip groove is formed in the drill rod, an external thread is arranged on the drill handle, a convex ring is arranged at the joint of the drill handle and the drill rod, the heat dissipation mechanism comprises a bottom cover screwed on the drill handle, a first water outlet nozzle arranged at the bottom of the bottom cover and a water tank screwed on the drill handle and abutted against the top of the bottom cover, a water storage cavity with an open top is formed in the bottom cover, a water outlet pipe communicated with the water storage cavity is inserted in the bottom of the water storage cavity, a limiting ring is arranged on the outer circumferential wall of the bottom end of the water outlet pipe, the first water outlet nozzle comprises a sleeve joint part sleeved at the bottom end of the water outlet pipe and a water outlet part arranged at the bottom end of the sleeve joint part, a limiting groove matched with the limiting ring is formed in the inner wall of the sleeve joint part, at least two limiting grooves are arranged in the axial, the water outlet pipe is arranged in the drill pipe, the first water outlet nozzle is opened and closed relative to the water outlet pipe in a push-pull mode, the water outlet direction of the first water outlet nozzle is arranged towards the bottom end of the drill pipe, the bottom of the water tank is provided with a water outlet hole communicated with the water storage cavity, and the side wall of the water tank is provided with a water inlet hole.
In the structure, when the utility model is used, the top end of the drill handle is arranged on the electric drill, the electric drill provided with the drill bit is carried to the side of a workpiece to be punched, the power is switched on, water is filled into the water tank through the water inlet hole, the drill bit is aligned to the workpiece to be punched, the first water nozzle is pulled downwards, so that the upper limiting groove is matched with the limiting ring for clamping, namely, the inner hole of the water outlet pipe is communicated with the inner cavity of the water outlet part through the water guide hole, water in the water tank flows into the water storage cavity through the water outlet hole, and then flows out from the first water nozzle through the water outlet pipe; the power switch is turned on, the drill rod rotates on the workpiece to be punched under the action of the electric drill, the drill rod drills into the workpiece to be punched, generated dust is discharged from holes, water flowing out of the first water outlet nozzle is used for dust removal while drilling, the drill rod can be cooled and radiated, and therefore the workpiece machining efficiency is improved; after the hole is drilled, the power switch is turned off, the first water outlet nozzle is pressed upwards through the sleeving part, so that the limiting ring is matched and clamped with the initial limiting groove, the water guide hole is matched and sealed with the bottom wall of the water outlet pipe, the communication between the inner hole of the water outlet pipe and the inner cavity of the water outlet part is cut off, and the water in the water tank is prevented from flowing down from the first water outlet nozzle. Through setting up heat dissipation mechanism can carry out the dust exhaust when the drill bit is drilled and can dispel the heat to the drilling rod to improve dust exhaust, radiating effect, improved the machining efficiency of work piece, reduced the cost of work piece processing. The convenience of opening and closing the first water outlet nozzle can be improved by setting the first water outlet nozzle to be in a pull-type opening and closing mode, so that the workpiece machining efficiency is further improved. The installation of the bottom cover can be limited by arranging the convex ring, and the phenomenon that the bottom cover is too large in torque and is broken when being installed is prevented, so that the convenience and the reliability of the utility model are improved during installation, and the assembly efficiency of the utility model is improved; can also be when the user drills, under the electric drill has still down pressed down or the drilling depth reaches the condition when drilling rod maximum length to the hole drill, the bulge loop collides with the work piece earlier to protected heat dissipation mechanism not to damage, reduced the utility model discloses a use cost. Can adjust the water yield of faucet through setting up a plurality of spacing grooves, thereby can make the utility model discloses can be applicable to different operating modes, enlarged the utility model discloses an application scope. Through with water tank and bottom spiro union can be convenient for under the cracked condition of drilling rod on the drillstock, dismantle it get off to reduced the utility model discloses a use cost. Realize the dust exhaust of drilling rod, heat dissipation through will dispel the heat the mechanism spiro union on the drill handle, can need not set up the passageway in the drill bit to do not influence the structural strength of drill bit, improved the utility model discloses a reliability.
The utility model discloses further set up to, the bottom of bottom is located the bulge loop outside and is equipped with the recess, first faucet is located the recess, and the perpendicular distance of its delivery end to drilling rod bottom is greater than the perpendicular distance of bulge loop bottom surface to drilling rod bottom.
Adopt above-mentioned structure, can further protect first water injection well choke not impaired when drilling to improve the utility model discloses a use cost.
The utility model discloses further set up to, be equipped with the ladder on the lateral wall of water tank, water tank outside cover is equipped with the swivel sleeve that offsets with the ladder, set up the ring channel that is linked together with the inlet opening on the inner wall of swivel sleeve, set up the connecting hole that is linked together with the ring channel on the outer periphery wall of swivel sleeve.
In the structure, connect water pipe one end in the connecting hole of swivel sleeve, the other end is connected in tap or water supply pipe, makes it supply water to the water tank, thereby can make the utility model discloses need not frequently add water and carry out work to the water tank, improved the utility model discloses the machining efficiency of work piece. Through setting up the ring channel can make the rotary sleeve not along with the water tank can keep the state that is linked together with the inlet opening all the time under the pivoted condition, thereby can improve the utility model discloses the efficiency of processing the work piece.
The utility model discloses further set up to, the water tank top be equipped with the lock sleeve of drill shank spiro union, the bottom surface of lock sleeve offsets with the top surface of swivel sleeve.
In the structure, the water tank can be limited and fixed by arranging the locking sleeve, so that the water tank is more stably fixed, and the water supply stability of the water tank is improved; can also carry out spacing fixed to the rotating sleeve, prevent that it from rocking the displacement from top to bottom to improve the stability of rotating sleeve, improved the utility model discloses a reliability.
The utility model discloses further set up to, the outside that lies in first faucet in the recess is equipped with the second faucet, the play water direction of second faucet and the reverse setting of the play water direction of first faucet, first faucet all is equipped with a plurality of with the second faucet, and relative bottom center circumference equipartition sets up.
In the structure, second faucet passes through the drill bit with first faucet and drives the bottom and rotate when rotating to can form two-layer cascade, can prevent that unnecessary dirt from omitting when dispelling heat, dust exhaust to the drilling position, thereby improve the utility model discloses dust exhaust, radiating effect, and can avoid the user to inhale the dirt internal, improved the utility model discloses a reliability.
The utility model discloses further set up to, it is equipped with elastic component to lie in the recess outside on the bottom, the through-hole has been seted up on the bottom, elastic component is including spheroid and the spring that is located the through-hole, the through-hole bottom is equipped with the spacing hole with spheroid looks adaptation, the relative spacing hole of spheroid can roll, spring one end is supported on the spheroid, and the other end is supported in the water tank bottom.
Adopt above-mentioned structure, can be when the user drills, under the electric drill has still down pressed down or the drilling depth reaches the condition when drilling rod maximum length, spheroid and work piece collide earlier to protected heat dissipation mechanism not to damage, reduced the utility model discloses a use cost. The power that heat dissipation mechanism received can further be reduced through setting up the spring, and the stress that the reduction drillstock that can be very big received to improved the utility model discloses a reliability.
The utility model discloses further set up to, elastic component is equipped with three groups at least, and relative bottom the central axis circumference sets up.
Adopt above-mentioned structure, can improve the stability of bottom, and can improve elastic component's buffer capacity and antifriction ability, thereby improved the utility model discloses a reliability.
Drawings
Fig. 1 is a schematic sectional view of the present invention.
Fig. 2 is an enlarged view of a structure at a in fig. 1.
Fig. 3 is an enlarged view of the structure at B in fig. 1.
Fig. 4 is a schematic structural view of the inner cavity of the middle water outlet part of the present invention being communicated with the inner hole of the water outlet pipe through the water guide hole.
The reference numbers in the figures mean: 1-a drill shank; 2-a drill rod; 21-chip groove; 3-a heat dissipation mechanism; 11-a convex ring; 31-a bottom cover; 32-a first water outlet nozzle; 33-a water tank; 311-a water storage cavity; 4-water outlet pipe; 41-a limit ring; 321-a socket joint part; 322-water outlet part; 3211-a limit groove; 3212-water guiding hole; 331-water outlet; 332-water inlet hole; 312-a groove; 5-rotating the sleeve; 51-an annular groove; 52-connecting hole; 6-locking sleeve; 7-a second water outlet nozzle; 8-an elastic component; 313-a via; 81-sphere; 82-spring.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
The drill bit easy to dissipate heat as shown in fig. 1 to 4 comprises a drill handle 1 and a drill rod 2, wherein a chip groove 21 is arranged on the drill rod 2, the drill bit further comprises a heat dissipation mechanism 3, an external thread is arranged on the drill handle 1, a convex ring 11 is arranged at the joint of the drill handle 1 and the drill rod 2, the heat dissipation mechanism 3 comprises a bottom cover 31 screwed on the drill handle 1, a first water outlet nozzle 32 arranged at the bottom of the bottom cover 31 and a water tank 33 screwed on the drill handle 1 and abutted against the top of the bottom cover 31, a water storage cavity 311 with an open top is arranged on the bottom cover 31, a water outlet pipe 4 communicated with the water storage cavity 311 is inserted at the bottom of the water storage cavity 311, a limit ring 41 is arranged on the outer circumferential wall at the bottom end of the water outlet pipe 4, the first water outlet nozzle 32 comprises a sleeve joint portion 321 sleeved at the bottom end of the water outlet pipe 4 and a water outlet portion 322 arranged at the bottom end of the sleeve portion, the limiting groove 3211 is at least provided with two relative to the axial direction of the water outlet pipe 4, a water guide hole 3212 for communicating the inner hole of the water outlet pipe 4 with the inner cavity of the water outlet portion 322 is arranged in the sleeve-joint portion 321, the first water outlet nozzle 32 is opened and closed relative to the water outlet pipe 4 in a pulling mode, the water outlet direction of the first water outlet nozzle 32 is arranged towards the bottom end of the drill rod 2, the bottom of the water tank 33 is provided with a water outlet hole 331 communicated with the water storage cavity 311, and the side wall of the water tank 33 is provided with a water inlet hole.
In the structure, when the utility model is used, the top end of the drill handle 1 is arranged on the electric drill, the electric drill provided with the drill bit is carried to the side of a workpiece to be punched, the power is switched on, water is filled into the water tank 33 through the water inlet hole 332, the drill bit is aligned to the workpiece to be punched, the first water outlet nozzle 32 is pulled downwards, so that the upper limiting groove 3211 is matched with the limiting ring 41 for clamping, namely, the inner hole of the water outlet pipe 4 is communicated with the inner cavity of the water outlet part 322 through the water guide hole 3212, water in the water tank 33 flows into the water storage cavity 311 through the water outlet hole 331 and then flows out from the first water outlet nozzle through the water outlet pipe 4; the power switch is turned on, the drill rod 2 rotates on the workpiece to be punched under the action of the electric drill, the drill rod 2 drills into the workpiece to be punched, generated dust is discharged from holes, water flowing out of the first water outlet nozzle 32 is used for dust removal while the hole is drilled, and the drill rod 2 can be cooled and radiated, so that the workpiece machining efficiency is improved; after the hole is drilled, the power switch is turned off, the first water outlet nozzle 32 is pressed upwards through the sleeving part 321, so that the limiting ring 41 is matched and clamped with the initial limiting groove 3211, the water guide hole 3212 is matched and sealed with the bottom wall of the water outlet pipe 4, the communication between the inner hole of the water outlet pipe 4 and the inner cavity of the water outlet part 322 is cut off, and the water in the water tank 33 is prevented from flowing down from the first water outlet nozzle 32. Through setting up heat dissipation mechanism 3 can carry out the dust exhaust when the drill bit is drilled and can dispel the heat to drilling rod 2 to improve dust exhaust, radiating effect, improved the machining efficiency of work piece, reduced the cost of work piece processing. The convenience of opening and closing the first water outlet nozzle 32 can be improved by setting the first water outlet nozzle 32 to be in a push-pull opening and closing mode, so that the workpiece machining efficiency is further improved. The installation of the bottom cover 31 can be limited by arranging the convex ring 11, and the phenomenon that the bottom cover 31 is too large in torque and is broken when being installed is prevented, so that the convenience and the reliability of the utility model during installation are improved, and the assembly efficiency of the utility model is improved; can also be when the user drills, under the electric drill has still down pressed down or the drilling depth reached drilling rod 2 condition when maximum length, bulge loop 11 collides with the work piece earlier to protected heat dissipation mechanism 3 and not damaged, reduced the utility model discloses a use cost. Can adjust the water yield of faucet through setting up a plurality of spacing grooves 3211, thereby can make the utility model discloses can be applicable to different operating modes, enlarged the utility model discloses an application scope. Through with water tank 33 and bottom 31 spiro union can be convenient for under the cracked condition of drilling rod 2 on drill shank 1, dismantle it, thereby reduced the utility model discloses a use cost. Realize the dust exhaust of drilling rod 2, dispel the heat through 3 spiro unions of mechanism that will dispel the heat on drillstock 1, can not be used for setting up the passageway in the drill bit to do not influence the structural strength of drill bit, improved the utility model discloses a reliability.
In this embodiment, the bottom of the bottom cap 31 is provided with a groove 312 at the outer side of the protruding ring 11, the first water nozzle 32 is located in the groove 312, and the vertical distance from the water outlet end to the bottom end of the drill rod 2 is greater than the vertical distance from the bottom surface of the protruding ring 11 to the bottom of the drill rod 2.
Adopt above-mentioned structure, can further protect first water injection well choke not impaired when drilling to improve the utility model discloses a use cost.
In this embodiment, a step is provided on the outer side wall of the water tank 33, the outer side of the water tank 33 is sleeved with a rotary sleeve 5 abutting against the step, an annular groove 51 communicated with the water inlet 332 is provided on the inner wall of the rotary sleeve 5, and a connecting hole 52 communicated with the annular groove 51 is provided on the outer circumferential wall of the rotary sleeve 5.
In the structure, connect water pipe one end in the connecting hole 52 of swivel mount 5, the other end is connected in tap or water supply pipe, makes it supply water to water tank 33, thereby can make the utility model discloses need not frequently to add water and carry out work to water tank 33, improved the utility model discloses the machining efficiency of work piece. Through setting up ring channel 51 can make the rotary sleeve 5 not along with the water tank 33 can keep the state that is linked together with inlet opening 332 all the time under the pivoted condition, thereby can improve the utility model discloses the efficiency of processing the work piece.
In this embodiment, a locking sleeve 6 screwed with the drill handle 1 is arranged above the water tank 33, and the bottom surface of the locking sleeve 6 abuts against the top surface of the rotary sleeve 5.
In the structure, the water tank 33 can be limited and fixed by arranging the locking sleeve 6, so that the water tank 33 is more stably fixed, and the stability of water supply of the water tank 33 is improved; can also carry out spacing fixed to swivel mount 5, prevent that it from rocking the displacement from top to bottom to improved swivel mount 5's stability, improved the utility model discloses a reliability.
In this embodiment, the groove 312 is provided with a second water outlet nozzle 7 located at the outer side of the first water outlet nozzle 32, the water outlet direction of the second water outlet nozzle 7 is opposite to the water outlet direction of the first water outlet nozzle 32, and the first water outlet nozzle 32 and the second water outlet nozzle 7 are both provided with a plurality of water outlet nozzles, and are circumferentially and uniformly arranged relative to the center of the bottom cover 31.
In the structure, second faucet 7 rotates when driving bottom 31 to rotate through the drill bit with first faucet 32 to can form two-layer cascade, can prevent that unnecessary dirt from omitting when dispelling heat, dust exhaust to the drilling position, thereby improve the utility model discloses dust exhaust, radiating effect, and can avoid the user to inhale the dirt internal, improved the utility model discloses a reliability.
In this embodiment, the bottom cover 31 is provided with an elastic element 8 outside the groove 312, the bottom cover 31 is provided with a through hole 313, the elastic element 8 includes a ball 81 and a spring 82 inside the through hole 313, the bottom end of the through hole 313 is provided with a limiting hole adapted to the ball 81, the ball 81 can roll relative to the limiting hole, one end of the spring 82 abuts against the ball 81, and the other end abuts against the bottom of the water tank 33.
Adopt above-mentioned structure, can be when the user drills, under the electric drill has still down pressed down or the drilling depth reaches the condition when 2 maximum length of drilling rod, spheroid 81 collides with the work piece earlier to protected heat dissipation mechanism 3 and not damaged, reduced the utility model discloses a use cost. The power that heat dissipation mechanism 3 received can further be reduced through setting up spring 82, and the stress that the reduction drillstock 1 that can be very big received to improved the utility model discloses a reliability.
In this embodiment, the elastic elements 8 are at least three groups and are circumferentially arranged relative to the central axis of the bottom cover 31.
Adopt above-mentioned structure, can improve the stability of bottom 31, and can improve elastic component 8's buffer capacity and antifriction ability, thereby improved the utility model discloses a reliability.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations of the above assumption should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides an easy radiating drill bit, includes drillstock and drilling rod, be equipped with the chip groove on the drilling rod, its characterized in that: the drill rod heat dissipation device comprises a drill rod, a drill handle and a heat dissipation mechanism, wherein the drill handle is provided with external threads, a convex ring is arranged at the joint of the drill handle and the drill rod, the heat dissipation mechanism comprises a bottom cover screwed on the drill handle, a first water outlet nozzle arranged at the bottom of the bottom cover and a water tank screwed on the drill handle and abutted against the top of the bottom cover, the bottom cover is provided with a water storage cavity with an open top, the bottom of the water storage cavity is inserted with a water outlet pipe communicated with the water storage cavity, the outer circumferential wall of the bottom end of the water outlet pipe is provided with a limiting ring, the first water outlet nozzle comprises a sleeve joint part sleeved at the bottom end of the water outlet pipe and a water outlet part arranged at the bottom end of the sleeve joint part, the inner wall of the sleeve joint part is provided with limiting grooves matched with the limiting ring, at least two limiting grooves are arranged in the axial direction of the water outlet pipe, the water outlet direction of the first water outlet nozzle is arranged towards the bottom end of the drill rod, a water outlet hole communicated with the water storage cavity is formed in the bottom of the water tank, and a water inlet hole is formed in the side wall of the water tank.
2. The drill bit capable of dissipating heat easily according to claim 1, wherein: the bottom of the bottom cover is positioned outside the convex ring and is provided with a groove, the first water outlet nozzle is positioned in the groove, and the vertical distance from the water outlet end of the first water outlet nozzle to the bottom end of the drill rod is greater than the vertical distance from the bottom surface of the convex ring to the bottom of the drill rod.
3. The drill bit capable of dissipating heat easily according to claim 1, wherein: the outer side wall of the water tank is provided with steps, a rotary sleeve which is abutted to the steps is sleeved on the outer side of the water tank, an annular groove communicated with the water inlet hole is formed in the inner wall of the rotary sleeve, and a connecting hole communicated with the annular groove is formed in the outer circumferential wall of the rotary sleeve.
4. A drill bit capable of dissipating heat easily according to claim 3, wherein: and a locking sleeve in threaded connection with the drill handle is arranged above the water tank, and the bottom surface of the locking sleeve is abutted against the top surface of the rotating sleeve.
5. The drill bit capable of dissipating heat easily according to claim 2, wherein: and a second water outlet nozzle is arranged on the outer side of the first water outlet nozzle in the groove, and the water outlet direction of the second water outlet nozzle is opposite to the water outlet direction of the first water outlet nozzle.
6. The drill bit easy to dissipate heat according to claim 5, wherein: the first water outlet nozzle and the second water outlet nozzle are respectively provided with a plurality of water outlet nozzles, and are circumferentially and uniformly distributed relative to the center of the bottom cover.
7. The drill bit capable of dissipating heat easily according to claim 2, wherein: the bottom cover is provided with an elastic component outside the groove, the bottom cover is provided with a through hole, the elastic component comprises a ball body and a spring, the ball body and the spring are located in the through hole, a limiting hole matched with the ball body is formed in the bottom end of the through hole, the ball body can roll relative to the limiting hole, one end of the spring abuts against the ball body, and the other end of the spring abuts against the bottom of the water tank.
8. The drill bit capable of dissipating heat easily according to claim 7, wherein: the elastic component is at least provided with three groups and is circumferentially arranged relative to the central axis of the bottom cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020561600.6U CN212217195U (en) | 2020-04-15 | 2020-04-15 | Drill bit easy to radiate heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020561600.6U CN212217195U (en) | 2020-04-15 | 2020-04-15 | Drill bit easy to radiate heat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212217195U true CN212217195U (en) | 2020-12-25 |
Family
ID=73907621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020561600.6U Expired - Fee Related CN212217195U (en) | 2020-04-15 | 2020-04-15 | Drill bit easy to radiate heat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212217195U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114700522A (en) * | 2022-04-21 | 2022-07-05 | 深圳市中扬数控机床有限公司 | Drilling machine tool |
-
2020
- 2020-04-15 CN CN202020561600.6U patent/CN212217195U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114700522A (en) * | 2022-04-21 | 2022-07-05 | 深圳市中扬数控机床有限公司 | Drilling machine tool |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201225 |