CN204011193U - A kind of gear shift pushing button structure of electric two-speed drill - Google Patents
A kind of gear shift pushing button structure of electric two-speed drill Download PDFInfo
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- CN204011193U CN204011193U CN201420310202.1U CN201420310202U CN204011193U CN 204011193 U CN204011193 U CN 204011193U CN 201420310202 U CN201420310202 U CN 201420310202U CN 204011193 U CN204011193 U CN 204011193U
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- push button
- speed
- elastic portion
- stopper
- elastic
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Abstract
The utility model relates to a kind of gear shift pushing button structure of electric two-speed drill, comprises push button, and push button is connected with the speed-regulating part that is positioned at shell; It is characterized in that: the bottom of push button is fixed with can be with the elastic wire of push button slippage, this elastic wire left and right has and respectively has an elasticity support arm, the middle part of described elasticity support arm is bent to form V-shaped elastic portion, elastic portion exposes outside the side of push button, the left and right sides in shell is provided with the stopper of joining with corresponding elastic portion gear, when elastic portion is positioned at a side of stopper, this push button drives speed-regulating part in the first gear, when elastic portion is positioned at the opposite side of stopper, this push button drives speed-regulating part in the second gear.First the elastic portion on elastic wire itself has mobile elasticity, soft handle while promoting push button gearshift, and gear shift is light smooth and easy, even if long-time use of elastic wire is also difficult for producing fatigue damage, effectively stops, because of the damage of elastomeric element, automatic tripping phenomenon occurs.
Description
Technical field
The utility model belongs to the technical field of electric tool, relates in particular to a kind of gear shift pushing button structure of electric two-speed drill.
Background technology
Electric drill is to utilize electricity as the boring bar tool of power, the rotating speed of the output shaft of most of electric drills is fixed, cannot be according to the customer demand rotating speed of arbitrarily accelerating or slow down, therefore in use happen occasionally because rotating speed is too fast or cause excessively slowly Drill Crack or bore motionless situation.For traditional present situation, also have in the market the adjustable electric two-speed drill of some rotating speeds.
A kind of electric two-speed drill as disclosed in the patent No. Chinese utility model patent < < electric two-speed drill > > that is ZL201220646165.2 (notification number is CN203030963U), comprise the casing of handheld structure and the battery component that is located at the manually fastened drill chuck of casing front end and is located at bottom of shell, motor is installed in casing, gearbox assembly and switch, the output shaft of motor is connected with manually fastened drill chuck through gearbox assembly, battery component is connected with switch by wire, switch is connected with motor by wire, switch shift lever is installed on casing, switch shift lever is connected between switch and motor, speed regulating device are installed on gearbox assembly, speed regulating device comprise the speed governing push button and the speed governing reed being connected with speed governing push button that is arranged on casing upper surface, speed governing reed is connected with gearbox assembly.Electric two-speed drill of the present utility model, adopts speed regulating device to be assemblied on electric drill, can effectively control according to demand the rotating speed of drill bit, thereby avoid Drill Crack or bore motionless phenomenon, has improved operating efficiency.
The push button of the gear shift pushing button structure of existing electric two-speed drill is partly the plate-like piece that a plastic material is made, push button constrains in electric drill upper surface and reveals, push button electric drill front and back slippage relatively, between push button and electric drill, be provided with and push button can be constrained in to the gear restraining structure on certain gear, this gear restraining structure is to be arranged on a kind of elasticity position that plastics that the push button left and right sides adopts special substance make to form to block with electric drill housing and joined, because the elasticity at elasticity position is that plastic deformation force by material itself provides, this push button is after long-time use, because plastic ageing meeting causes the afunction of gear restraining structure, for extending the useful life of push button, need to adopt high-quality plastics to make, and high to technological requirement, cause the high enterprise of production cost, it is stiff heavy that there is gearshift in existing push button in addition, the defect of easy automatic tripping.
Summary of the invention
Technical problem to be solved in the utility model is that the more gear shift pushing button structure of advantages of simple and the low electric two-speed drill of cost of a kind of structure is provided for above-mentioned prior art present situation, this gear shift pushing button structure also have advantages of gear shift light smooth and easy, effectively stop automatic tripping phenomenon.
The utility model solves the problems of the technologies described above adopted technical scheme: a kind of gear shift pushing button structure of electric two-speed drill, comprise constrain on shell and can opposite shell before and after the push button of slippage, push button is connected with the speed-regulating part that is positioned at shell; It is characterized in that: the bottom of described push button is fixed with can be with the elastic wire of push button slippage, this elastic wire left and right has and respectively has an elasticity support arm, the middle part of described elasticity support arm is bent to form V-shaped elastic portion, elastic portion exposes outside the side of push button, the left and right sides in described shell is provided with the stopper of joining with corresponding elastic portion gear, when elastic portion is positioned at a side of stopper, this push button drives speed-regulating part in the first gear, when elastic portion is positioned at the opposite side of stopper, this push button drives speed-regulating part in the second gear.
The left and right sides of above-mentioned push button has the guide pad of evagination, in described shell, the left and right sides is provided with the gathering sill matching with described guide pad, guide pad is positioned at gathering sill energy front and back slippage, described stopper is positioned at the medium position of gathering sill, and described elastic portion partly stretches in gathering sill to coordinate with stopper.The cooperation of guide pad and gathering sill guarantees that push button is by predetermined front and back sliding trajectory operation, and gathering sill provides suitable placement position to stopper simultaneously.
The sidewall of above-mentioned push button has breach, two arms of elastic portion and the breach sidewall Elastic Contact passing for described elastic portion.Two arms and breach sidewall Elastic Contact due to elastic portion, after two arms of guaranteeing like this elastic portion are stopped by stopper, the continuation movement of push button can allow stopper only promote elastic wire left and right elasticity support arm to overcome self elastic force and inside contract, and can not make the elasticity support arm generation axial deformation of elastic wire.
The above-mentioned push button back side has two briquettings in order to elastic wire is pushed down.Briquetting is to the effect of elastic wire limited location.
Further improve, the bottom surface of above-mentioned push button is provided with spring cavity, the bar portion of described speed-regulating part stretches into spring cavity and is positioned at the middle part of spring cavity, in described spring cavity, be provided with the first spring and the second spring, the first spring supporting is between the rear inwall of spring cavity and the bar portion of speed-regulating part, and the second spring supporting is between the front inwall of spring cavity and the bar portion of speed-regulating part.Owing to thering is the first spring and the second spring, to push button, drive speed-regulating part that cushion effect and certain promotion power-assisted are provided, not only make gear shift light smooth and easy, also increase push-button feel.
Compared with prior art, the utility model has the advantage of: this structure coordinates with the gear of stopper by the elastic portion on elastic wire, and the mobile push button not homonymy that makes elastic portion be positioned at stopper is realized the switching of push button gear, first the elastic portion on elastic wire itself has mobile elasticity, soft handle while promoting push button gearshift, gear shift is light smooth and easy, even if long-time use of elastic wire is also difficult for producing fatigue damage, effectively stops, because of the damage of elastomeric element, automatic tripping phenomenon occurs.
Accompanying drawing explanation
Fig. 1 is the perspective view (removing a half-shells state) of the utility model embodiment;
Fig. 2 is the cutaway view (removing a half-shells state) of the utility model embodiment;
Fig. 3 is that the A-A of Fig. 2 is to cutaway view;
Fig. 4 is the perspective view of push button part in the utility model embodiment;
Fig. 5 is the perspective view (removing a half-shells state) of the utility model embodiment housing.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
As shown in Fig. 1～5, it is a preferred embodiment of the present utility model.
A gear shift pushing button structure for electric two-speed drill, comprises the push button 2 that constrains on shell 1 and can opposite shell 1 front and back slippage, and push button 2 is connected with the speed-regulating part 4 that is positioned at shell 1.The left and right sides of push button 2 has the guide pad 21 of evagination, and every side has two guide pads 21, and the interior left and right sides of shell 1 is provided with the gathering sill 12 matching with guide pad 21, and guide pad 21 is positioned at gathering sill 12 energy front and back slippage.
The bottom of push button 2 is fixed with can be with the elastic wire 3 of push button 2 slippages, and push button 2 back sides have two briquettings 13 in order to elastic wire 3 is pushed down.The whole bending of this elastic wire 3 takes the shape of the letter U, elastic wire 3 left and right have and respectively have an elasticity support arm 31, the middle part of elasticity support arm 31 is bent to form V-shaped elastic portion 32, and elastic portion 32 exposes outside the side of push button 2, and elastic portion 32 parts stretch in gathering sill 12 to coordinate with stopper 11.The sidewall of push button 2 has breach 22, two arms of elastic portion 32 and the breach 22 sidewall Elastic Contact that pass for elastic portion 32.The left and right sides in shell 1 is provided with the stopper 11 of joining with corresponding elastic portion 32 gears, stopper 11 is positioned at the medium position of gathering sill 12, when elastic portion 32 is positioned at a side of stopper 11, this push button 2 drives speed-regulating part 4 in the first gear, when elastic portion 32 is positioned at the opposite side of stopper 11, this push button 2 drives speed-regulating part 4 in the second gear.
The bottom surface of push button 2 is provided with spring cavity 23, the bar portion of speed-regulating part 4 stretches into spring cavity 23 and is positioned at the middle part of spring cavity 23, in spring cavity 23, be provided with the first spring 5 and the second spring 6, the first spring 5 is supported between the rear inwall of spring cavity 23 and the bar portion of speed-regulating part 4, and the second spring 6 is supported between the front inwall of spring cavity 23 and the bar portion of speed-regulating part 4.
Operation principle and the process of this gearshift pushing button structure are as follows:
During gearshift, promote push button 2, push button 2 drives speed-regulating part 4 and elastic wire 3 to move simultaneously, after elastic portion 32 on elastic wire 3 contacts with the gear of stopper 11, continue to promote push button 2,11 pairs of elastic portion 32 of stopper are exerted pressure, forcing the elasticity support arm 31 of elastic wire 3 to overcome self elastic force inside contracts and dodges stopper 11, when elastic portion 32 is crossed after stopper 11, bullet outside the elasticity support arm 31 of elastic wire 3 resets under self elastic force effect, elastic portion 32 is positioned at the opposite side of stopper 11 and by stopper 11 gears, push button 2 drives speed-regulating part 4 in the second gear.
Claims (5)
1. a gear shift pushing button structure for electric two-speed drill, comprises the push button (2) that constrains in the front and back slippage of the upper also energy opposite shell (1) of shell (1), and push button (2) is connected with the speed-regulating part (4) that is positioned at shell (1), it is characterized in that: the bottom of described push button (2) is fixed with can be with the elastic wire (3) of push button (2) slippage, this elastic wire (3) left and right has and respectively has an elasticity support arm (31), the middle part of described elasticity support arm (31) is bent to form V-shaped elastic portion (32), elastic portion (32) exposes outside the side of push button (2), the left and right sides in described shell (1) is provided with the stopper (11) of joining with corresponding elastic portion (32) gear, when elastic portion (32) is positioned at a side of stopper (11), this push button (2) drives speed-regulating part (4) in the first gear, when elastic portion (32) is positioned at the opposite side of stopper (11), this push button (2) drives speed-regulating part (4) in the second gear.
2. the gear shift pushing button structure of electric two-speed drill according to claim 1, it is characterized in that: the left and right sides of described push button (2) has the guide pad (21) of evagination, the interior left and right sides of described shell (1) is provided with the gathering sill (12) matching with described guide pad (21), guide pad (21) is positioned at gathering sill (12) energy front and back slippage, described stopper (11) is positioned at the medium position of gathering sill (12), and described elastic portion (32) part stretches in gathering sill (12) to coordinate with stopper (11).
3. the gear shift pushing button structure of electric two-speed drill according to claim 2, it is characterized in that: the sidewall of described push button (2) has breach (22), two arms of elastic portion (32) and breach (22) the sidewall Elastic Contact passing for described elastic portion (32).
4. the gear shift pushing button structure of electric two-speed drill according to claim 3, is characterized in that: described push button (2) back side has two briquettings (13) in order to elastic wire (3) is pushed down.
5. according to the gear shift pushing button structure of the arbitrary described electric two-speed drill of claim 1～4, it is characterized in that: the bottom surface of described push button (2) is provided with spring cavity (23), the bar portion of described speed-regulating part (4) stretches into spring cavity (23) and is positioned at the middle part of spring cavity (23), in described spring cavity (23), be provided with the first spring (5) and the second spring (6), the first spring (5) is supported between the rear inwall of spring cavity (23) and the bar portion of speed-regulating part (4), and the second spring (6) is supported between the front inwall of spring cavity (23) and the bar portion of speed-regulating part (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420310202.1U CN204011193U (en) | 2014-06-11 | 2014-06-11 | A kind of gear shift pushing button structure of electric two-speed drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420310202.1U CN204011193U (en) | 2014-06-11 | 2014-06-11 | A kind of gear shift pushing button structure of electric two-speed drill |
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| Publication Number | Publication Date |
|---|---|
| CN204011193U true CN204011193U (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420310202.1U Active CN204011193U (en) | 2014-06-11 | 2014-06-11 | A kind of gear shift pushing button structure of electric two-speed drill |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107020604A (en) * | 2017-06-01 | 2017-08-08 | 宁波汉浦工具有限公司 | A kind of brushless electric tool |
| CN108206109A (en) * | 2017-11-08 | 2018-06-26 | 中兴通讯股份有限公司 | Push button switch and terminal |
| CN108673426A (en) * | 2018-06-26 | 2018-10-19 | 宁波汉浦工具有限公司 | A kind of electric tool based on small and special electric machine |
-
2014
- 2014-06-11 CN CN201420310202.1U patent/CN204011193U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107020604A (en) * | 2017-06-01 | 2017-08-08 | 宁波汉浦工具有限公司 | A kind of brushless electric tool |
| CN108206109A (en) * | 2017-11-08 | 2018-06-26 | 中兴通讯股份有限公司 | Push button switch and terminal |
| CN108673426A (en) * | 2018-06-26 | 2018-10-19 | 宁波汉浦工具有限公司 | A kind of electric tool based on small and special electric machine |
| CN108673426B (en) * | 2018-06-26 | 2024-03-12 | 宁波汉浦工具有限公司 | Electric tool based on micro-special motor |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |