CN208496905U - A kind of electric tool - Google Patents
A kind of electric tool Download PDFInfo
- Publication number
- CN208496905U CN208496905U CN201821094637.1U CN201821094637U CN208496905U CN 208496905 U CN208496905 U CN 208496905U CN 201821094637 U CN201821094637 U CN 201821094637U CN 208496905 U CN208496905 U CN 208496905U
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- CN
- China
- Prior art keywords
- air
- isolation ward
- accommodation chamber
- electric tool
- permeable member
- 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.)
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Abstract
The utility model discloses a kind of electric tools, gear-box including casing and in the casing, accommodation chamber and isolation ward are provided between the casing and the gear-box, lubricant is placed in the accommodation chamber, the accommodation chamber is connected to the isolation ward by air-permeable member, the isolation ward is connected to the external world by exhaust pipe, and the air-permeable member, the isolation ward are connected to the runner to form bending with the exhaust pipe.The setting of isolation ward, so that accommodation chamber does not communicate with the outside world directly；When accommodating room pressure increase, gas enters accommodation chamber through air-permeable member from accommodation chamber, then is discharged in atmosphere through exhaust pipe, plays the role of drainage pressure；Lubricant to form the runner of bending since air pressure or itself mobility can enter isolation ward by air-permeable member, since air-permeable member, isolation ward and exhaust pipe are connected to, and lubricant is not easily accessible atmosphere, and then plays the role of preventing leakage of lubricant.
Description
Technical field
The utility model relates to a kind of electric tools.
Background technique
The motor and transmission mechanism that electric tool generally comprises tool shell, is arranged in tool shell, motor pass through driver
Structure driving spindle carries out impact or spinning movement.Filled with for driving mechanism in the accommodating space of accommodating driving mechanism
The lubricant being lubricated.
Motor drive transmission device movement when, heat can be generated, particularly with have reciprocating impact system tool,
When motor running fever or tool move back and forth, the intracorporal air-flow moving of case can be made, air expansion, generating air pressure leads to lubricant
It leaks into outside the shell of tool, i.e. influence environment influences service life of a machine again；Even air-flow moving causes impact to move back and forth disorder.
Exhaust apparatus can be set, for example gear housing has gas vent, to prevent lubricant from exhaust in some electric tools
Hole is released, and felt is placed at gas vent, but felt can be blocked influence exhaust effect by lubricant.
Utility model content
The purpose of this utility model is to provide a kind of electric tools, are easily let out with solving lubricant existing in the prior art
The technical problem of dew, exhaust effect difference.
As above design, the technical scheme adopted by the utility model is
A kind of electric tool, the gear-box including casing and in the casing, the casing and the gear-box it
Between be provided with accommodation chamber and isolation ward, placed in the accommodation chamber lubricant, the accommodation chamber and the isolation ward pass through it is ventilative
Part connection, the isolation ward are connected to the external world by exhaust pipe, and the air-permeable member, the isolation ward are connected to shape with the exhaust pipe
At the runner of bending.
Wherein, the air-permeable member is air hole, several described air holes are connected to the accommodation chamber and the isolation ward.
Wherein, the air-permeable member is gap, and the seam is formed between the edge of the gear-box and the inner wall of the casing
Gap.
Wherein, the air inlet of the exhaust pipe is located in the isolation ward, and the gas outlet of the exhaust pipe is in communication with the outside,
Open up direction and the direction that opens up of the gas outlet of the air inlet are arranged in angle.
Wherein, the air inlet open up direction and the gas outlet to open up direction vertical.
Wherein, the circulation area of the air inlet is less than the circulation area of the gas outlet.
Wherein, felt is provided at the air inlet.
Wherein, it is provided with sealing ring between the shell of the gear-box and the casing, is set on the shell of the gear-box
It is equipped with the groove that can accommodate the sealing ring.
Wherein, the isolation ward includes bottom wall, the first side wall and second sidewall, the bottom wall, the first side wall and institute
The edge for stating second sidewall is abutted with the inner wall of the casing.
Wherein, the accommodation chamber and the isolation ward are separated by the bottom wall, and the air-permeable member is set on the bottom wall.
The utility model has the beneficial effects that
The utility model proposes electric tool, lubricant, the setting of isolation ward, so that accommodation chamber are placed in accommodation chamber
It does not communicate with the outside world directly；When accommodating room pressure increase, gas enters accommodation chamber through air-permeable member from accommodation chamber, then through being vented
Pipe is discharged in atmosphere, plays the role of drainage pressure；Lubricant due to air pressure or itself mobility can by air-permeable member into
Entering isolation ward, to form the runner of bending since air-permeable member, isolation ward and exhaust pipe are connected to, lubricant is not easily accessible atmosphere,
And then play the role of preventing leakage of lubricant.
Detailed description of the invention
Fig. 1 is the part-structure decomposition diagram of electric tool provided by the utility model；
Fig. 2 is the structural schematic diagram of the gear-box of Fig. 1；
Fig. 3 is the partial structure diagram of electric tool provided by the utility model；
Fig. 4 is the internal structure partial schematic sectional view of electric tool provided by the utility model；
Fig. 5 is enlarged drawing at the A of Fig. 4.
In figure:
1, casing；2, gear-box；3, sealing ring；4, accommodation chamber；5, isolation ward；6, air hole；7, exhaust pipe；
21, groove；
51, bottom wall；52, the first side wall；53, second sidewall；
71, air inlet；72, gas outlet.
Specific embodiment
The technical issues of to solve the utility model, the technical solution of use and the technical effect that reaches are clearer,
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.It is understood that
Specific embodiment described herein is used only for explaining the utility model, rather than the restriction to the utility model.In addition it also needs
It is noted that illustrating only part relevant to the utility model for ease of description, in attached drawing and not all.
Referring to Fig. 1 to Fig. 3, the utility model embodiment provides a kind of electric tool, including casing 1 and is located in casing 1
Gear-box 2, be provided with sealing ring 3 between the shell and casing 1 of gear-box 2, guarantee air-tightness.
It is provided with accommodation chamber 4 and isolation ward 5 between casing 1 and gear-box 2, when gear-box 2 is installed in casing 1, holds
It sets room 4 to be connected to isolation ward 5 by air-permeable member, isolation ward 5 is connected to the external world by exhaust pipe 7.Lubrication is placed in accommodation chamber 4
Agent, the setting of isolation ward 5, so that accommodation chamber 4 does not communicate with the outside world directly；When air pressure increases in accommodation chamber 4, gas is from accommodating
Room 4 enters isolation ward 5 through air-permeable member, then is discharged in atmosphere through exhaust pipe 7, plays the role of drainage pressure.
Air-permeable member, isolation ward 5 and exhaust pipe 7 are connected to the runner for forming bending, as shown by the arrows in Figure 2.Lubricant due to
Air pressure or itself mobility can enter isolation ward 5 along first direction by air-permeable member, and gas is from isolation ward 5 along second party
To entering in exhaust pipe 7, and the angle between first direction and second direction is greater than 0 ° and less than 180 °, therefore the movement of gas
Path is bending, so that lubricant is not easily accessible atmosphere, and then plays the role of preventing leakage of lubricant.
In the present embodiment, air-permeable member is air hole 6.Certainly, air-permeable member may be gap, the edge of gear-box 2 with
Gap, gap area accommodation chamber 4 and isolation ward 5 are formed between the inner wall of casing 1.In addition, air-permeable member may be mesh plate or
Other, this is not restricted.
Referring to fig. 2, it is provided with the groove 21 that can accommodate sealing ring 3 on the shell of gear-box 2, sealing ring 3 is determined
Position.Isolation ward 5 includes bottom wall 51, the first side wall 52 and second sidewall 53, the side of bottom wall 51, the first side wall 52 and second sidewall 53
Edge is abutted with the inner wall of casing 1.In the present embodiment, the first side wall 52 and the edge of second sidewall 53 are arranged to and casing 1
Inner wall adaptation shape.The shell of bottom wall 51, the first side wall 52 and second sidewall 53 and gear-box 2 is integrally formed.
Accommodation chamber 4 and isolation ward 5 are separated by bottom wall 51, and air hole 6 is set on bottom wall 51, shorten accommodation chamber 4 be isolated
Gas path between room 5 prevents gas to be not easy to be discharged in accommodation chamber 4.After gas enters isolation ward 5, gas can pass through
The runner of bending flows out.
Referring to fig. 4 and Fig. 5, air hole 6 are connected to accommodation chamber 4 and isolation ward 5.Air hole 6 can be one, or more
It is a, with no restriction to quantity at this.In the present embodiment, an air hole 6 is set.The size of air hole 6 can be led to gas
Crossing is advisable, and this is not restricted.Lubricant is by air hole 6 in order to prevent, can under the premise of guaranteeing that gas normally circulates,
Air hole 6 is arranged to small as far as possible.
The air inlet 71 of exhaust pipe 7 is located in isolation ward 5, and the gas outlet 72 of exhaust pipe 7 is in communication with the outside, air inlet 71
The direction that opens up for opening up direction and gas outlet 72 is arranged in angle.So that runner is bent, leakage of lubricant is prevented.In the present embodiment
In, air inlet 71 open up direction and gas outlet 72 open up that direction is vertical, exhaust outlet is opened up along the axial direction of exhaust pipe 7, air inlet
Mouth 71 is opened up along the radial direction of exhaust pipe 7, production easy to process.The shell of exhaust pipe 7 and gear-box 2 is integrally formed.
The circulation area of air inlet 71 is less than the circulation area of exhaust outlet, discharges as early as possible convenient for pressure；And air inlet 71
Circulation area is smaller, further prevents leakage of lubricant.
Felt (not shown) is provided at air inlet 71.In the present embodiment, isolation ward 5, the runner and hair that bend
The setting of felt, level is progressive, is for preventing leakage of lubricant.Felt is located at the air inlet 71 of exhaust pipe 7, air inlet 71
In isolation ward 5, because the lubricant entered in isolation ward 5 is less, and the runner setting bent, so that less lubrication
Agent reaches at felt, therefore lubricant will not influence exhaust effect.
Embodiment of above only elaborates the basic principles and features of the present invention, and the utility model is not by above-mentioned reality
The mode of applying limits, and on the premise of not departing from the spirit and scope of the utility model, the present invention has various changes and changes,
These changes and changes fall within the scope of the claimed invention.The utility model requires protection scope is by appended
Claims and its equivalent thereof.
Claims (10)
1. a kind of electric tool, which is characterized in that the gear-box including casing and in the casing, the casing with it is described
It is provided with accommodation chamber and isolation ward between gear-box, places lubricant, the accommodation chamber and the isolation ward in the accommodation chamber
It is connected to by air-permeable member, the isolation ward is connected to the external world by exhaust pipe, the air-permeable member, the isolation ward and the exhaust
Pipe is connected to the runner to form bending.
2. electric tool according to claim 1, which is characterized in that the air-permeable member is air hole, several are described
Stomata is connected to the accommodation chamber and the isolation ward.
3. electric tool according to claim 1, which is characterized in that the air-permeable member is gap, the side of the gear-box
The gap is formed between edge and the inner wall of the casing.
4. electric tool according to claim 1, which is characterized in that the air inlet of the exhaust pipe is located at the isolation ward
Interior, the gas outlet of the exhaust pipe is in communication with the outside, and the direction that opens up for opening up direction and the gas outlet of the air inlet is in
Angle setting.
5. electric tool according to claim 4, which is characterized in that the air inlet opens up direction and the gas outlet
To open up direction vertical.
6. electric tool according to claim 4, which is characterized in that the circulation area of the air inlet is less than the outlet
The circulation area of mouth.
7. electric tool according to claim 4, which is characterized in that be provided with felt at the air inlet.
8. electric tool according to claim 1, which is characterized in that set between the shell of the gear-box and the casing
It is equipped with sealing ring, the groove that can accommodate the sealing ring is provided on the shell of the gear-box.
9. electric tool according to claim 1, which is characterized in that the isolation ward includes bottom wall, the first side wall and
Two side walls, the edge of the bottom wall, the first side wall and the second sidewall are abutted with the inner wall of the casing.
10. electric tool according to claim 9, which is characterized in that by institute between the accommodation chamber and the isolation ward
It states bottom wall to separate, the air-permeable member is set on the bottom wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821094637.1U CN208496905U (en) | 2018-07-11 | 2018-07-11 | A kind of electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821094637.1U CN208496905U (en) | 2018-07-11 | 2018-07-11 | A kind of electric tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208496905U true CN208496905U (en) | 2019-02-15 |
Family
ID=65284100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821094637.1U Active CN208496905U (en) | 2018-07-11 | 2018-07-11 | A kind of electric tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208496905U (en) |
-
2018
- 2018-07-11 CN CN201821094637.1U patent/CN208496905U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 529, Jiangjun Avenue, Jiangning Economic and Technological Development Zone, Nanjing, Jiangsu Province Patentee after: Nanjing Quanfeng Technology Co.,Ltd. Address before: No. 529, Jiangjun Avenue, Jiangning Economic and Technological Development Zone, Nanjing, Jiangsu Province Patentee before: NANJING CHERVON INDUSTRY Co.,Ltd. |