CN201760870U - Electric tool - Google Patents
Electric tool Download PDFInfo
- Publication number
- CN201760870U CN201760870U CN201020291947XU CN201020291947U CN201760870U CN 201760870 U CN201760870 U CN 201760870U CN 201020291947X U CN201020291947X U CN 201020291947XU CN 201020291947 U CN201020291947 U CN 201020291947U CN 201760870 U CN201760870 U CN 201760870U
- Authority
- CN
- China
- Prior art keywords
- oil
- electric tool
- gear
- box
- sheet
- 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
- 230000005540 biological transmission Effects 0.000 claims description 15
- 230000003068 static effect Effects 0.000 claims description 14
- 238000007790 scraping Methods 0.000 claims description 11
- 210000003205 muscle Anatomy 0.000 claims description 4
- 239000003921 oil Substances 0.000 abstract 2
- 239000010687 lubricating oil Substances 0.000 abstract 1
- 230000002265 prevention Effects 0.000 abstract 1
- 239000004519 grease Substances 0.000 description 14
- 239000000314 lubricant Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 8
- 230000017105 transposition Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000003116 impacting effect Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
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- Gear Transmission (AREA)
Abstract
The utility model provides an electric tool, which comprises a holding portion, a working portion, a gear case and an output shaft, wherein the working portion is rotatably connected to the holding portion around an axis, the gear case is contained inside the holding portion, and the output shaft capable of reciprocating is contained inside the working portion. The gear case is provided with an opening; the output shaft can rotate from one end to the other end of the opening along with the working portion; and an oil leakage prevention device is arranged at the position of the opening. A liner for preventing oil leakage is arranged at the position of the opening of the gear case and can fill the opening on the gear case no matter how the liner rotates along with the output shaft, thereby being capable of preventing lubricating oil leakage.
Description
Technical field
The utility model relates to a kind of electric tool, particularly relates to the leakproof and the sealing device of the grease of each movable part of electric tool internal lubrication.
Background technology
Most of movable part needs grease lubrication in the electric tool, lubricant grease is along with thereby the use of electric tool can reduce of long duration can influence lubricant effect, particularly when movable part is the parts of rotation at a high speed, lubricant grease can be thrown out of and reduces along with rotary part, in addition, be electrically connected the position if in a single day grease is leaked to, can influence the quality of electrical connection even cause being electrically connected inefficacy.
Summary of the invention
For solving the problems of the technologies described above, the utility model provides a kind of electric tool that has anti-oil leakage device.
The utility model is by the following technical solutions:
A kind of electric tool, comprise: a grip portions, a working portion rotatably is connected in described grip portions around an axis, one gear-box, be contained in the described grip portions, an output shaft can reciprocatingly be contained in the described working portion, described gear-box has an opening, described output shaft can insert to the other end of opening from an end of opening with described working portion, and wherein, described opening part is provided with anti-oil leakage device.
Further, described anti-oil leakage device comprises the lining that is socketed in rotationally in the described gear-box, and described lining is provided with the hole that is used to pass described output shaft.
Further, extend along the axis direction of described output shaft in described hole.
Further, described lining tool one breach, at first end of described breach or/and be provided with on second end and stretch to described bush inside and be barb-like long-pending oily portion.
Further, be supported with transmission device in the described gear-box, described transmission device is provided with first end that can embed described breach and/or the groove of second end.
Further, be supported with transmission device in the described gear-box and impact assembly, between described transmission device and the described impact assembly every the muscle position that is equipped with anti-leakage of oil.
Further, described working portion is provided with light source, and the arrangements of electric connection of described light source is provided with oil-scraping device.
Further, described arrangements of electric connection comprises the sheet of being located on the described working portion and be connected with the described sheet that is dynamically connected and be arranged on static connection sheet on the described grip portions of being dynamically connected, described oil-scraping device comprises the oil-scrapping sheet of being located at the described sheet both sides that are dynamically connected respectively, and described oil-scrapping sheet one end contacts with described static connection sheet.
Further, described oil-scraping device also comprises the long-pending oil groove that is located at described static connection sheet two ends.
By adopting above technical scheme, can realize following beneficial technical effects:
(1) be provided for the lining of anti-leakage of oil by the opening at gear-box, no matter lining can be filled up the opening on the gear-box along with how transposition of output shaft, thereby can prevent that lubricant grease from revealing.
(2) isolation has the muscle position between transmission device and impact assembly, can reduce lubricant grease from the diffuses flow of drive area to shock zone.
(3) if the lubricant grease of leakage is arranged on the brace of light source, oil-scrapping sheet can blow it off, guarantees that contact is unobstructed between the brace.At the end of oil-scrapping sheet direction of rotation motion, respectively be provided with a long-pending oil groove simultaneously, be used for the oil that blows off is hoarded.
Description of drawings
Below in conjunction with accompanying drawing electric tool of the present utility model is described in further detail
Fig. 1 is that electric tool of the present utility model is in the schematic diagram under a kind of nailing operating mode;
Fig. 2 is that electric tool of the present utility model is in the schematic diagram under the another kind of nailing operating mode;
Fig. 3 is the partial sectional view in electric tool of the present utility model front;
Fig. 4 is along the cross sectional view of axis C among Fig. 3;
Fig. 5 is the partial sectional view of electric tool of the present utility model side, and wherein the relative grip portions of working portion is on the 180 degree angle positions;
Fig. 6 is the partial sectional view of electric tool of the present utility model side, and wherein the relative grip portions of working portion is on the 90 degree angle positions;
Fig. 7 is the electrical connection schematic diagram of the light source on the electric tool of the present utility model;
Fig. 8 is the schematic diagram that the device that is used to be electrically connected light source of the present utility model is provided with oil-scraping device;
Fig. 9 is that electric tool of the present utility model is provided with the anti-oil leakage device schematic diagram, wherein, anti-oil leakage device comprises the lining that is located at the gear-box opening part, and output sleeve is connected in the axis hole of being located on the lining and drives lining and can move to second end position (b) from first end position (a) of gear-box opening;
Figure 10 is the further technical measures schematic diagram of anti-oil leakage device among Fig. 9, and wherein, lining is provided with the breach of the gear drive position that is used to avoid transmission device;
Figure 11 is the further again technical measures schematic diagram of anti-oil leakage device among Fig. 9, and wherein, the gear drive position is provided with groove.
The specific embodiment
Be that example is done further detailed elaboration to the specific embodiment of the present utility model with a kind of electronic hammer that is used for nailing below.
Extremely shown in Figure 6 as Fig. 1, electronic hammer comprises grip portions 20 and working portion 10, grip portions 20 has first axle A, working portion has the second axis B, working portion 10 relative grip portions 20 can rotate around the 3rd axis C, the 3rd axis C is perpendicular to by first axle A and the determined plane of the second axis B, relative the 3rd axis C of intersection point of the second axis B and first axle A and the intersection point of first axle A more are partial to the top of grip portions 20, make working portion 10 more operating in the narrow space.
As shown in Figure 1, when electronic hammer is operated in the corner regions that two vertical workpiece form, the direction of the surface one-tenth miter angle of the relative workpiece of nail is squeezed into and is made it to be connected with another workpiece, at this moment, the transposition angle of working portion 10 relative grip portions 20 rotations is 135 degree, staff is held on the vertical holding area, and rapid operation grips comfortable.The light luminance of working region 50 also is provided with light source 30 during for the enhancing nailing on rotatable working portion 10.As shown in Figure 2, when a workpiece that is in the top was carried out operation, staff need not readjusted grip portions 20, as long as make working portion 10 relative grip portions 20 rotate on the transposition angle of 180 degree simple operation.
Extremely shown in Figure 6 as Fig. 3, the rotatable workpiece 1 of working portion 10 mainly comprises the output shaft 7 that is used for nailing, the lining 6 of output shaft 7 outer sockets, lid 12 and appearance nail mouth 11 etc., grip portions 20 comprises casing 2, be used for support teeth roller box 5 and workpiece 1, be supported with transmission device 9 in the gear-box 5, impact assembly 8, also be provided with release-push 3 on the casing 2, be used for locking and discharge workpiece 1, release-push 3 can reset by a biasing device 4.
The rotary work principle: release-push 3 peripheries have noncontinuous surface, correspondingly casing 2 and workpiece 1 place of matching with release-push 3 also has noncontinuous surface, when release-push 3 was between casing 2 and the workpiece 1, workpiece 1 was locked, can not rotate.When pressing release-push 3, when the noncontinuous surface disengaging casing 2 of release-push 3 all entered workpiece 1, workpiece 1 can be rotated.Because the effect of biasing device 4, release-push 3 has and breaks away from the trend that workpiece 1 enters casing 2, and when rotating to certain angle, the noncontinuous surface of release-push 3 conforms to noncontinuous surface on the casing 2, then release-push 3 enters casing, and workpiece 1 is locked.
When workpiece 1 rotation, output shaft 7 axle center that are mounted thereon and the round general tangential of impacting assembly 8 rotations.
As Fig. 4, shown in Figure 7, be the connected mode schematic diagram of light source 30 (preferred LED lamp), workpiece 1 rotation back user's use for convenience, the utility model has designed LED simultaneously with workpiece 1 rotation.LED is installed on the workpiece 1, makes the light of its emission can shine the working region 5 that holds nail mouthful 11 front ends.Circuit connects in the following ways: positive and negative electrode lead one end is drawn from LED, the other end welds the positive and negative electrode sheet 34,32 that is dynamically connected respectively, lead is circular-arc along lid 12 inner surfaces and arranges, the positive and negative electrode sheet 34,32 that is dynamically connected is separately fixed on the lid 12, positive and negative electrode static connection sheet 35,31 is separately fixed on the forward and backward side of gear-box 5 simultaneously, when lid 12 is installed on the gear-box 5, the positive and negative sheet 34,32 that is dynamically connected will contact with positive and negative electrode static connection sheet 35,31 respectively.36 one ends of two positive and negative electrode leads in addition connect positive and negative electrode static connection sheet 35,31, other end connection PCB assembly.Positive and negative electrode static connection sheet 35,31 has than the positive and negative long length of sheet 34,32 that is dynamically connected, and can slide on positive and negative electrode static connection sheet 35,31 when making the positive and negative sheet 34,32 that is dynamically connected along with the rotation of working portion 10 relative grip portions.
Firm in order to guarantee that each brace connects, a flexible member 33 on being dynamically connected sheet 1, positive and negative electrode is set respectively, be used for auxiliary positive and negative electrode the contacting of sheet 34,32 and positive and negative electrode static connection sheet 35,31 that be dynamically connected.
In conjunction with Fig. 1, Fig. 2, light source 30 preferably is located at the downside of working portion 10, by the switch control of control motor M and by power brick 40 power supplies of being located at grip portions 20 bottoms.
Reveal for the activity that makes each parts is unlikely to make inner lubricant grease, electric tool of the present utility model also is provided with the anti-oil leakage device that is used to control oil.As Fig. 9, Fig. 5 and shown in Figure 6, gear-box 5 has an opening 51, the assembly 8 that impacts in the gear-box 5 drives rotation in gear-box 5 by transmission device 9, in rotary course, be located on the intermittent output shaft 7 that impacts in putting in gear-box opening 51 of two lugs that impact on the assembly outer circumference surface, make output shaft 7 linear reciprocating motion in working portion 10, thereby realize impacting elements such as nails.Because the working portion 10 of electronic hammer grip portions 20 rotary indexings relatively in the present embodiment, thereby drive ccontaining output shaft 7 transpositions within it, so, gear-box opening 51 is provided for the required space of output shaft 7 transpositions simultaneously, from then on reveal at opening 51 places for preventing the lubricant grease in the gear- box 5,51 places are provided with lining 6 at the gear-box opening, the profile of lining 6 and gear-box 5 is a concentric circles, in gear-box 5 is wrapped in lining 6, output shaft 7 is socketed in the axis hole of being located on the lining 62 and drives the inner surface rotation of lining 6 at gear-box 5, be implemented in first end position (a) of gear-box opening 51 and the transposition between second end position (b), but no matter how to rotate, lining 6 can be filled up the opening on the gear-box 5 51, thereby can prevent the lubricant grease leakage.
As shown in figure 10, because lining 6 can interfere with the transmission device 9 that extend in the gear-box 5, for avoiding the gear drive position of transmission device, lining 6 is provided with the breach 60 that can avoid described gear drive position, breach 60 have first end 61 that is separated from each other and second end 61 ', be to strengthen oil sealing effect, above-mentioned anti-oil leakage device further step is in first end 61 of lining 6 and/or second end 61 ' the be provided with long-pending oily portion that is the overhead kick shape of stretching out to lining 6 inside.For prolonging after lining 6 rotates to an end of gear-box opening 51, lining 6 is in the length stacked with the gear-box inner surface at its relative other end place, above-mentioned anti-oil leakage device further step is to be provided with groove 91 with the gear drive position of two end in contact of the breach 60 of lining 6, but an end of the breach 60 of inlay bushers in the groove 91.
Because the outer surface of lining 6 engages with the inner surface of gear-box 5, the grease that is thrown to lining 6 inner surfaces when impacting assembly 8 rotations will still flow back in the gear-box 5 along this inner surface, and can not flow to the outside of gear-box along its composition surface.Certainly, those skilled in the art can be easy to also expect that for increasing sealing, the external diameter of lining 6 also can be bigger slightly than the internal diameter of gear-box 5.Referring to Fig. 4, the another kind of embodiment of anti-oil leakage device as can be known, gear-box 5 is provided with muscle position 52, with transmission device 9 with impact assembly 8 and isolate, reduce lubricant grease from the diffuses flow of drive area to shock zone.
In order to prevent that in a single day oil is revealed and the connection of LED was lost efficacy, the utility model is provided with oil-scraping device respectively at the positive pole and the negative pole brace place of its circuit, referring to Fig. 8, oil-scraping device with negative pole brace place is that example describes, the negative pole sheet 32 that is dynamically connected is respectively equipped with an oil-scrapping sheet 38 in the both sides of its direction of rotation, each oil-scrapping sheet 38 1 end is installed on the lid 12, other end contact negative pole static connection sheet 31, when workpiece 1 rotation, if the lubricant grease of leakage is arranged on the negative pole static connection sheet 31, oil-scrapping sheet 38 can blow it off, guarantees that the contact of LED brace is unobstructed.At the end of oil-scrapping sheet 38 direction of rotation motion, respectively be provided with a long-pending oil groove 39 simultaneously, be used for the oil that blows off is hoarded.The oil-scraping device of positive strap place is identical with the oil-scraping device at negative pole brace place.
Claims (9)
1. electric tool comprises:
One grip portions,
One working portion rotatably is connected in described grip portions around an axis,
One gear-box is contained in the described grip portions,
One output shaft can reciprocatingly be contained in the described working portion,
Described gear-box has an opening, and described output shaft can insert to the other end of opening from an end of opening with described working portion,
It is characterized in that: described opening part is provided with anti-oil leakage device.
2. electric tool according to claim 1 is characterized in that: described anti-oil leakage device comprises the lining that is socketed in rotationally in the described gear-box, and described lining is provided with the hole that is used to pass described output shaft.
3. electric tool according to claim 2 is characterized in that: extend along the axis direction of described output shaft in described hole.
4. electric tool according to claim 2 is characterized in that: described lining tool one breach, at first end of described breach or/and be provided with on second end and stretch to described bush inside and be barb-like long-pending oily portion.
5. electric tool according to claim 4 is characterized in that: be supported with transmission device in the described gear-box, described transmission device is provided with first end that can embed described breach and/or the groove of second end.
6. electric tool according to claim 1 is characterized in that: be supported with transmission device in the described gear-box and impact assembly, between described transmission device and the described impact assembly every the muscle position that is equipped with anti-leakage of oil.
7. electric tool according to claim 1 is characterized in that: described working portion is provided with light source, and the arrangements of electric connection of described light source is provided with oil-scraping device.
8. electric tool according to claim 7, it is characterized in that: described arrangements of electric connection comprises the sheet of being located on the described working portion and be connected with the described sheet that is dynamically connected and be arranged on static connection sheet on the described grip portions of being dynamically connected, described oil-scraping device comprises the oil-scrapping sheet of being located at the described sheet both sides that are dynamically connected respectively, and described oil-scrapping sheet one end contacts with described static connection sheet.
9. electric tool according to claim 8 is characterized in that: described oil-scraping device also comprises the long-pending oil groove that is located at described static connection sheet two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020291947XU CN201760870U (en) | 2010-08-10 | 2010-08-10 | Electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020291947XU CN201760870U (en) | 2010-08-10 | 2010-08-10 | Electric tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201760870U true CN201760870U (en) | 2011-03-16 |
Family
ID=43713472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020291947XU Expired - Fee Related CN201760870U (en) | 2010-08-10 | 2010-08-10 | Electric tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201760870U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102371573A (en) * | 2010-08-10 | 2012-03-14 | 南京德朔实业有限公司 | Electric tool |
-
2010
- 2010-08-10 CN CN201020291947XU patent/CN201760870U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102371573A (en) * | 2010-08-10 | 2012-03-14 | 南京德朔实业有限公司 | Electric tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20180810 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |