CN111822750B - Electric hand drill with drill bit cooling function - Google Patents
Electric hand drill with drill bit cooling function Download PDFInfo
- Publication number
- CN111822750B CN111822750B CN202010145373.3A CN202010145373A CN111822750B CN 111822750 B CN111822750 B CN 111822750B CN 202010145373 A CN202010145373 A CN 202010145373A CN 111822750 B CN111822750 B CN 111822750B
- Authority
- CN
- China
- Prior art keywords
- drill
- shell
- sleeve
- drill bit
- cover plate
- 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.)
- Active
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 53
- 230000005540 biological transmission Effects 0.000 claims abstract description 28
- 239000007921 spray Substances 0.000 claims abstract description 18
- 238000013016 damping Methods 0.000 claims description 10
- 229920000742 Cotton Polymers 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 4
- 239000000110 cooling liquid Substances 0.000 description 8
- 238000005553 drilling Methods 0.000 description 8
- 239000000428 dust Substances 0.000 description 6
- 230000017525 heat dissipation Effects 0.000 description 5
- 238000005086 pumping Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B45/00—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor
- B23B45/02—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor driven by electric power
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/10—Arrangements for cooling or lubricating tools or work
- B23Q11/1092—Arrangements for cooling or lubricating tools or work specially adapted for portable power-driven tools
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention is suitable for the technical field of electric tools, and provides an electric hand drill with a drill cooling function, which comprises an electric drill component, wherein the electric drill component comprises a shell, a handle, a transmission shaft, a transmission gear, a driving gear, a servo motor, a switch, a water storage bin, a miniature negative pressure pump, a water suction pipe, a water inlet pipe, a spray pipe, a drill sleeve and a drill bit.
Description
Technical Field
The invention belongs to the field of electric tools, and particularly relates to an electric hand drill with a drill bit cooling function.
Background
The electric hand drill is a drilling tool powered by an alternating current power supply or a direct current battery, is a handheld electric tool, and mainly comprises the following components: the electric drill is a most commonly used electric tool for people, has the advantages of convenience, low cost, portability and the like, and is deeply favored by workers in the hardware and decoration industries.
The existing electric hand drill has certain defects when in use, has a simple structure, can not cool the drill bit when in drilling operation, is not beneficial to prolonging the service life of the drill bit, and can generate a large amount of dust when in drilling, and can cause damage to the respiratory tract of staff.
Disclosure of Invention
The invention provides an electric hand drill with a drill cooling function, and aims to solve the problems in the prior art.
The invention is realized in such a way that the electric hand drill with the drill cooling function comprises an electric drill component, a stopping component and a shoulder pressure component;
the electric drill assembly comprises a shell, a handle, a transmission shaft, a transmission gear, a driving gear, a servo motor, a switch, a water storage bin, a miniature negative pressure pump, a water suction pipe, a water inlet pipe, a spray pipe, a drill sleeve and a drill bit;
The bottom of one end of the shell is provided with a handle, the other end of the shell is provided with a transmission shaft, one end of the transmission shaft extends into the shell and is fixedly provided with a transmission gear, the shell is internally provided with a servo motor, the output end of the servo motor is fixedly provided with a driving gear which is meshed with the transmission gear, the handle is provided with a switch, the switch is electrically connected with the servo motor, the switch is electrically connected with a power line, the other end of the transmission shaft is positioned outside the shell and is fixedly provided with a drill sleeve, one end of the drill sleeve is connected with the transmission shaft, the other end of the drill sleeve is provided with a mounting groove, and one end of the drill is embedded into the mounting groove and is fixedly connected with the drill;
The water storage bin is located in the shell, the miniature negative pressure pump is located at the top of the water storage bin and the water inlet of the miniature negative pressure pump is communicated with the water storage bin through the water suction pipe, the spray pipe is fixed at the other end of the shell and located below the drill bit, one end of the spray pipe is communicated with the water outlet of the miniature negative pressure pump, the other end of the spray pipe faces the drill bit, the water inlet pipe is fixed on the shell and one end of the water inlet pipe is communicated with the water storage bin, a starting key for controlling the opening and closing of the miniature negative pressure pump is arranged on the handle, and the miniature negative pressure pump provides an electric power source through the power line.
Preferably, the handle is provided with a handle groove, and a first anti-slip pad is fixed in the handle groove.
Preferably, a second anti-slip pad is fixed on the handle, and the second anti-slip pad is made of rubber materials.
Preferably, the shutdown assembly comprises a cover plate and a spring, wherein the cover plate is positioned at the top of the other end of the shell, one end of the cover plate is hinged to the shell, the other end of the cover plate is positioned above the drill bit sleeve, the spring is arranged in the middle of the cover plate, and two ends of the spring are fixedly connected with the cover plate and the shell respectively.
Preferably, a pressing rod perpendicular to the cover plate is fixed to the top of the other end of the cover plate, and a handle is fixed to the upper end of the pressing rod.
Preferably, the shoulder pressure assembly comprises a telescopic rod, a cushion block, a sleeve and a damping spring, wherein the sleeve is positioned at one end of the shell, one end of the sleeve is fixedly connected with the shell, one end of the telescopic rod extends into the sleeve from the other end of the sleeve and is movably connected with the sleeve, one damping spring is arranged in the sleeve, two ends of the damping spring are respectively connected with the telescopic rod and the shell, and one cushion block is fixed at the other end of the telescopic rod.
Preferably, the shell is provided with a plurality of heat dissipation holes, and the heat dissipation holes are positioned on one side of the servo motor.
Preferably, a sound absorbing cotton is fixed at the top of the inner side of the shell, and the sound absorbing cotton is located above the servo motor.
Compared with the prior art, the invention has the beneficial effects that: according to the electric hand drill with the drill bit cooling function, the water storage bin for containing cooling liquid is arranged in the shell, the miniature negative pressure pump for extracting the cooling liquid is arranged at the top of the water storage bin, the water outlet of the miniature negative pressure pump is connected with the spray pipe, one end of the spray pipe is positioned outside the shell and faces the drill bit, and the water storage bin is also connected with the water inlet pipe for injecting the cooling liquid, so that the cooling liquid is sprayed out through the spray pipe while drilling operation is performed, the drill bit is cooled, dust is reduced, the drill bit can be effectively cooled, and dust suction during operation of a user can be reduced.
Drawings
Fig. 1 is a schematic diagram of the overall structure of an electric hand drill with a drill cooling function according to the present invention.
Fig. 2 is an overall cross-sectional view of the present invention.
Fig. 3 is an enlarged schematic view of detail a in fig. 2.
In the figure: 1-electric drill assembly, 11-shell, 12-grip, 13-handle groove, 14-first anti-slip pad, 15-second anti-slip pad, 16-transmission shaft, 17-transmission gear, 18-driving gear, 19-servo motor, 110-switch, 111-water storage bin, 112-miniature negative pressure pump, 113-water pumping pipe, 114-water inlet pipe, 115-spray pipe, 116-drill sleeve, 117-drill, 118-sound absorbing cotton, 119-heat dissipation hole, 2-stop assembly, 21-cover plate, 22-spring, 23-pressure bar, 24-handle, 3-shoulder pressure assembly, 31-telescopic rod, 32-cushion block, 33-sleeve and 34-damping spring.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1-3, the present invention provides a technical solution: an electric hand drill with a drill bit cooling function comprises an electric drill assembly 1, a stopping assembly 2 and a shoulder pressing assembly 3.
The electric drill assembly 1 comprises a housing 11, a grip 12, a drive shaft 16, a drive gear 17, a drive gear 18, a servo motor 19, a switch 110, a reservoir 111, a miniature negative pressure pump 112, a water pump 113, a water inlet pipe 114, a nozzle 115, a drill sleeve 116 and a drill bit 117.
The bottom of one end of casing 11 has a handle 12, a transmission shaft 16 is installed to the other end of casing 11, the one end of transmission shaft 16 stretches into in the casing 11 and is fixed with a drive gear 17, install a servo motor 19 in the casing 11, the output of servo motor 19 is fixed with a drive gear 18, drive gear 18 meshing drive gear 17, install a switch 110 on the handle 12, servo motor 19 is connected to the switch 110 electricity, a power cord is connected to the switch 110 electricity, the other end of transmission shaft 16 is located the casing 11 and is fixed with a drill bit cover 116, transmission shaft 16 is connected to one end of drill bit cover 116, the other end of drill bit cover 116 has a mounting groove, the one end embedding mounting groove of drill bit 117 and fixed connection drill bit 117. The handle 12 is provided with a handle groove 13, and a first anti-slip pad 14 is fixed in the handle groove 13. A second anti-slip pad 15 is fixed on the handle 12, and the second anti-slip pad 15 is made of rubber material. The casing 11 is provided with a plurality of heat dissipation holes 119, and the heat dissipation holes 119 are positioned on one side of the servo motor 19. A sound absorbing cotton 118 is fixed to the top of the inner side of the housing 11, and the sound absorbing cotton 118 is located above the servo motor 19.
The housing 11 is further fixed with a bearing, and the bearing is sleeved on the outer side of the transmission shaft 16, so that the transmission shaft 16 rotates more stably. The switch 110 is used for controlling the switch and the rotation speed of the servo motor 19, the switch 110 adopts a three-section boat-shaped switch, three gears of the three-section boat-shaped switch are respectively a power-off power supply, a first rotation speed and a second rotation speed, the first rotation speed is lower than the second rotation speed, and a power line is used for connecting an external power supply so as to provide an electric power source for the servo motor 19. The drill bit 117 is arranged in the drill bit sleeve 116 through a set screw, and is convenient to detach and replace. The handle groove 13 is used for being held by a user, and when the user holds the handle 12, the palm of the hand contacts the second anti-slip pad 15, and the fingers contact the first anti-slip pad 14. The heat dissipation holes 119 are used for dissipating heat generated during the operation of the servo motor 19, so that the operation of the servo motor 19 is safer. The sound absorbing cotton 118 serves to absorb part of noise generated from the servo motor 19, thereby reducing noise pollution. The shell 11 and the handle 12 are hollow structures and are communicated with each other. The servo motor 19 drives the transmission gear 17 to rotate through the driving gear 18, so that the drill bit sleeve 116 is driven to rotate through the transmission shaft 16, and drilling operation is performed through the drill bit 117 on the drill bit sleeve 116. In the present embodiment, a steering switch may be mounted on the grip 12, and the steering switch may be a two-stage boat-shaped switch for controlling forward and reverse rotation of the servo motor 19.
The water storage bin 111 is located in the shell 11, the miniature negative pressure pump 112 is located at the top of the water storage bin 111, the water inlet of the miniature negative pressure pump 112 is communicated with the water storage bin 111 through the water suction pipe 113, the spray pipe 115 is fixed at the other end of the shell 11 and located below the drill bit 117, one end of the spray pipe 115 is communicated with the water outlet of the miniature negative pressure pump 112, the other end of the spray pipe 115 faces the drill bit 117, the water inlet pipe 114 is fixed on the shell 11, one end of the water inlet pipe 114 is communicated with the water storage bin 111, a starting key for controlling the opening and closing of the miniature negative pressure pump 112 is arranged on the handle 12, and the miniature negative pressure pump 112 provides an electric power source through a power line.
Wherein, store the coolant liquid in the water storage bin 111, inlet tube 114 is used for importing the coolant liquid to the water storage bin 111 in, and a sealed lid is installed to the one end that is located the casing 11 of inlet tube 114, and sealed lid passes through the screw thread to be installed on inlet tube 114, and the user can be through connecting outside water pipe with inlet tube 114 in order to carry out continuous water supply. The spout 115 is L-shaped in configuration. The micro negative pressure pump 112 is used for pumping the cooling liquid in the water storage bin 111 through the water pumping pipe 113, and then spraying the cooling liquid to the drill bit 117 through the spray pipe 115 to cool the drill bit 117 and reduce dust.
The stop assembly 2 comprises a cover plate 21 and a spring 22, wherein the cover plate 21 is positioned at the top of the other end of the shell 11, one end of the cover plate 21 is hinged with the shell 11, the other end of the cover plate 21 is positioned above the drill bit sleeve 116, the spring 22 is arranged in the middle of the cover plate 21, and two ends of the spring 22 are respectively fixedly connected with the cover plate 21 and the shell 11. A pressing rod 23 perpendicular to the cover plate 21 is fixed to the top of the other end of the cover plate 21, and a handle 24 is fixed to the upper end of the pressing rod 23.
Wherein, the cover plate 21 is used for carrying out manual forced stopping rotation on the drill bit 117 when the servo motor 19 is powered off but the drill bit 117 continues to rotate due to inertia. A rubber slip-resistant ring is fixed to the outer peripheral wall of the bit sleeve 116. The cover plate 21 is supported by the spring 22, when the servo motor 19 is powered off, the handle 24 controls the pressing rod 23 to press down the cover plate 21, the cover plate 21 contacts the rubber anti-slip ring, and the drill bit sleeve 116 is pressed by the cover plate 21, so that the drill bit sleeve 116 and the drill bit 117 are stopped, and the use is safer.
The shoulder press assembly 3 comprises a telescopic rod 31, a cushion block 32, a sleeve 33 and a damping spring 34, wherein the sleeve 33 is positioned at one end of the shell 11, one end of the sleeve 33 is fixedly connected with the shell 11, one end of the telescopic rod 31 extends into the sleeve 33 from the other end of the sleeve 33 and is movably connected with the sleeve 33, the damping spring 34 is arranged in the sleeve 33, two ends of the damping spring 34 are respectively connected with the telescopic rod 31 and the shell 11, and the cushion block 32 is fixed at the other end of the telescopic rod 31.
The shoulder pressure assembly 3 is used for increasing the pressure of the drill bit 117 and improving the efficiency of drilling operation. The spacer 32 is made of a rubber material. The user can increase the pressure of the drill bit 117 by pressing the pad 32 against the shoulder while the telescopic rod 31 is retracted into the sleeve 33, compressing the damper spring 34, and the damper spring 34 can provide a damper effect.
When the electric hand drill with the drill cooling function is used, when a user holds the handle 12, the palm of the user contacts the second anti-slip pad 15, the finger contacts the first anti-slip pad 14, the switch 110 is turned on, the servo motor 19 is started, the miniature negative pressure pump 112 is started through the start button, the servo motor 19 drives the transmission gear 17 to rotate through the driving gear 18, the drill bit sleeve 116 is driven to rotate through the transmission shaft 16, and then the drilling operation is carried out through the drill bit 117 on the drill bit sleeve 116. The micro negative pressure pump 112 is used for pumping the cooling liquid in the water storage bin 111 through the water pumping pipe 113, and then spraying the cooling liquid to the drill bit 117 through the spray pipe 115 to cool the drill bit 117 and reduce dust. In addition, the user can increase the pressure of the drill bit 117 by pressing the pad 32 against the shoulder while compressing the damper spring 34, and the damper spring 34 can provide a damper effect. After the drilling is finished, the switch is closed, when the servo motor 19 is powered off, the handle 24 controls the pressing rod 23 to press the cover plate 21, and the cover plate 21 presses the drill bit sleeve 116, so that the drill bit sleeve 116 and the drill bit 117 are stopped, and the use is safer. The invention can effectively cool the drill bit and reduce dust suction during operation of a user.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (3)
1. Electric hand drill with drill bit cooling function, its characterized in that: comprises an electric drill assembly (1), a stopping assembly (2) and a shoulder pressure assembly (3); the electric drill assembly (1) comprises a shell (11), a grip (12), a transmission shaft (16), a transmission gear (17), a driving gear (18), a servo motor (19), a switch (110), a water storage bin (111), a miniature negative pressure pump (112), a water suction pipe (113), a water inlet pipe (114), a spray pipe (115), a drill bit sleeve (116) and a drill bit (117); the bottom of one end of the shell (11) is provided with a grip (12), the other end of the shell (11) is provided with a transmission shaft (16), one end of the transmission shaft (16) extends into the shell (11) and is fixedly provided with a transmission gear (17), one servo motor (19) is arranged in the shell (11), the output end of the servo motor (19) is fixedly provided with a driving gear (18), the driving gear (18) is meshed with the transmission gear (17), the grip (12) is provided with a switch (110), the switch (110) is electrically connected with the servo motor (19), the switch (110) is electrically connected with a power line, the other end of the transmission shaft (16) is positioned outside the shell (11) and is fixedly provided with a drill sleeve (116), one end of the drill sleeve (116) is connected with the transmission shaft (16), the other end of the drill sleeve (19) is provided with a mounting groove, and one end of the drill bit (117) is embedded into the mounting groove and fixedly connected with the drill sleeve (116); the miniature negative pressure pump (112) is positioned at the top of the water storage bin (111) and a water inlet of the miniature negative pressure pump (112) is communicated with the water storage bin (111) through the water suction pipe (113), the spray pipe (115) is fixed at the other end of the shell (11) and positioned below the drill bit (117), one end of the spray pipe (115) is communicated with a water outlet of the miniature negative pressure pump (112), the other end of the spray pipe (115) faces the drill bit (117), the water inlet pipe (114) is fixed on the shell (11) and one end of the water inlet pipe (114) is communicated with the water storage bin (111), a starting key for controlling the opening and closing of the miniature negative pressure pump (112) is arranged on the handle (12), and the miniature negative pressure pump (112) provides an electric power source through the power line; the shutdown assembly (2) comprises a cover plate (21) and a spring (22), wherein the cover plate (21) is positioned at the top of the other end of the shell (11), one end of the cover plate (21) is hinged to the shell (11), the other end of the cover plate (21) is positioned above the drill bit sleeve (116), the middle part of the cover plate (21) is provided with the spring (22), and two ends of the spring (22) are fixedly connected with the cover plate (21) and the shell (11) respectively; a pressing rod (23) perpendicular to the cover plate (21) is fixed at the top of the other end of the cover plate (21), and a handle (24) is fixed at the upper end of the pressing rod (23); the shoulder pressing assembly (3) comprises a telescopic rod (31), a cushion block (32), a sleeve (33) and a damping spring (34), wherein the sleeve (33) is positioned at one end of the shell (11), one end of the sleeve (33) is fixedly connected with the shell (11), one end of the telescopic rod (31) extends into the sleeve (33) from the other end of the sleeve (33) and is movably connected with the sleeve (33), one damping spring (34) is arranged in the sleeve (33), two ends of the damping spring (34) are respectively connected with the telescopic rod (31) and the shell (11), and one cushion block (32) is fixed at the other end of the telescopic rod (31); a plurality of radiating holes (119) are formed in the shell (11), and the radiating holes (119) are positioned on one side of the servo motor (19); a sound absorbing cotton (118) is fixed on the top of the inner side of the shell (11), and the sound absorbing cotton (118) is located above the servo motor (19).
2. The electric hand drill with a drill cooling function as claimed in claim 1, wherein: the handle (12) is provided with a handle groove (13), and a first anti-slip pad (14) is fixed in the handle groove (13).
3. The electric hand drill with a drill cooling function as claimed in claim 1, wherein: a second anti-slip pad (15) is fixed on the handle (12), and the second anti-slip pad (15) is made of rubber materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010145373.3A CN111822750B (en) | 2020-03-05 | 2020-03-05 | Electric hand drill with drill bit cooling function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010145373.3A CN111822750B (en) | 2020-03-05 | 2020-03-05 | Electric hand drill with drill bit cooling function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111822750A CN111822750A (en) | 2020-10-27 |
| CN111822750B true CN111822750B (en) | 2024-05-03 |
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ID=72913342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010145373.3A Active CN111822750B (en) | 2020-03-05 | 2020-03-05 | Electric hand drill with drill bit cooling function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111822750B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115462251B (en) * | 2021-06-11 | 2024-03-01 | 格力博(江苏)股份有限公司 | Garden tool |
| CN115462252B (en) * | 2021-06-11 | 2024-03-01 | 格力博(江苏)股份有限公司 | Pruning machine |
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| KR101626946B1 (en) * | 2016-01-19 | 2016-06-02 | 석대환 | drill machine |
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| CN211966021U (en) * | 2020-03-05 | 2020-11-20 | 武义金可曼电器有限公司 | Electric hand drill with drill bit cooling function |
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2020
- 2020-03-05 CN CN202010145373.3A patent/CN111822750B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020072610A (en) * | 2001-03-12 | 2002-09-18 | 김지형 | auto-stop system for a drill |
| KR101626946B1 (en) * | 2016-01-19 | 2016-06-02 | 석대환 | drill machine |
| CN205630511U (en) * | 2016-04-15 | 2016-10-12 | 张建国 | Can cool off fast and bore with dirt -proof portable electric hammer |
| CN206326155U (en) * | 2016-08-11 | 2017-07-14 | 诺希德实业（深圳）有限公司 | A kind of hand-held pneumatic percussive drill of the aluminium alloy casing driven with air motor |
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| Publication number | Publication date |
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| CN111822750A (en) | 2020-10-27 |
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