CN209077859U - A kind of electric tool axial direction positioning device - Google Patents
A kind of electric tool axial direction positioning device Download PDFInfo
- Publication number
- CN209077859U CN209077859U CN201821677858.1U CN201821677858U CN209077859U CN 209077859 U CN209077859 U CN 209077859U CN 201821677858 U CN201821677858 U CN 201821677858U CN 209077859 U CN209077859 U CN 209077859U
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- CN
- China
- Prior art keywords
- positioning
- pin shaft
- locating piece
- side cock
- rubber ring
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- 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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- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Abstract
The utility model discloses a kind of electric tool axial direction positioning devices, including gearbox, a pin shaft hole is provided on gearbox, the inner wall of pin shaft hole is provided with the first positioning step, positioning groove and card slot, it further include core shift pin shaft, location rubber ring, side cock and locating piece, positioning convex platform and connecting column are provided on core shift pin shaft, positioning convex platform is contacted on the first positioning step, location rubber ring is penetrated from the connecting column direction of core shift pin shaft, and it is entrapped on positioning groove, cylindrical surface is provided on side cock, link slot and the second positioning step are provided on cylindrical surface, cylindrical surface is caught in the inner hole surface of location rubber ring, knob spring and fixture block are provided on locating piece, locating piece and the snap-in connection of side cock, and contact knob spring with side cock, fixture block is connect with card slot.The axial direction positioning device of the utility model plays a dual role of positioning and sealing by location rubber ring, effectively reduces the occupied space of location structure, is also convenient for assembly or disassembly.
Description
Technical field
The utility model relates to field of power tools, in particular to a kind of electric tool axial direction positioning device.
Background technique
Currently, using alternating current work the common hand held electric tool such as impact drill, electric drill, electric hammer due to it is light-weight,
The features such as easy to use, is widely applied.The axially position of above-mentioned shaft forgings generally uses circlip for hole to position, such as
Fruit is related to sealing, and just in the recessing of shaft member surface, assembles sealing rubber ring, such structure has the drawback that occupied space
Greatly, Assembly And Disassembly is inconvenient.
Utility model content
Positioning is integrated on a part with sealing the technical problem to be solved by the present invention is to provide a kind of, is occupied
Space is small.The convenient electric tool axial direction positioning device of Assembly And Disassembly.
In order to solve the above-mentioned technical problem, the utility model is achieved through the following technical solutions:
A kind of electric tool axial direction positioning device, including gearbox, it is characterised in that: be provided with one on the gearbox
Pin shaft hole, the inner wall of the pin shaft hole are provided with the first positioning step, positioning groove and card slot, further include core shift pin shaft, positioning
Cushion rubber, side cock and locating piece, one end of the core shift pin shaft are provided with positioning convex platform, and the other end is provided with connecting column, described
Core shift pin shaft penetrates in the pin shaft hole, and is contacted with the positioning convex platform on first positioning step, the positioning glue
Circle is penetrated from the connecting column direction of the core shift pin shaft, and is entrapped on the positioning groove, is provided with circle on the side cock
Cylinder, link slot and the second positioning step are provided on the cylindrical surface, and the side cock is penetrated described by the link slot
On connecting column, and it is caught in the cylindrical surface in the inner hole surface of the location rubber ring, it is described fixed that second positioning step compresses
Position cushion rubber, knob spring and fixture block, the locating piece and the snap-in connection of the side cock is provided on the locating piece, and make
The knob spring is contacted with the side cock, and the fixture block is connect with the card slot.
Preferably, side cock described above is fixedly connected with the core shift pin shaft by tapping screw.
Preferably, being provided with spring retention posts on the locating piece described above, the knob spring pocket is in the bullet
On spring positioning column.
Preferably, being provided with guide groove on the side cock described above, the guide groove is corresponded on the locating piece
It is provided with back-off, the locating piece is squeezed into the side cock by the guide groove and connected, and fixes by back-off positioning.
The beneficial effects of the utility model are: the axial direction positioning device of the utility model, structure is simple, and location rubber ring is embedding
Enter in the positioning groove of pin shaft hole, and the cylindrical surface on side cock is supported on to the bore area of location rubber ring, and make cylindrical surface
On the second positioning step compress location rubber ring, on the one hand prevent location rubber ring from deforming, so as to cause core shift pin shaft from pin shaft hole
Interior disengaging；On the other hand due to the support on cylindrical surface, guarantee the tight fit of location rubber ring and pin shaft hole inner wall, play good
Sealing function plays a dual role of positioning and sealing by location rubber ring, effectively reduces the occupied space of location structure,
It is also convenient for assembly or disassembly.
Detailed description of the invention
Fig. 1 is the fractionation structural representation of the utility model；
Fig. 2 is the schematic diagram of internal structure of the utility model；
Fig. 3 is the structural schematic diagram of gearbox in the utility model；
Fig. 4 is the structural schematic diagram of locating piece in the utility model；
Fig. 5 is the structural schematic diagram of side cock in the utility model.
In figure: 1- gearbox；2- core shift pin shaft；3- location rubber ring；4- side cock；5- locating piece；6- knob spring；7- is certainly
Attack screw；11- pin shaft hole；The first positioning step of 12-；13- positioning groove；14- card slot；21- positioning convex platform；22- connecting column；
The cylindrical surface 41-；42- link slot；The second positioning step of 43-；44- guide groove；51- fixture block；52- spring retention posts；53- back-off.
Specific embodiment
Specific embodiment of the present utility model is described further with reference to the accompanying drawing.It should be noted that
The explanation of these embodiments is used to help to understand the utility model, but does not constitute the restriction to the utility model.This
Outside, technical characteristic involved in the various embodiments of the present invention described below is as long as they do not conflict with each other
It can be combined with each other.
As shown in Figs. 1-5, a kind of electric tool axial direction positioning device, including gearbox 1 are provided with one on gearbox 1
Pin shaft hole 11, the inner wall of pin shaft hole 11 are provided with the first positioning step 12, positioning groove 13 and card slot 14, further include core shift pin shaft
2, location rubber ring 3, side cock 4 and locating piece 5, one end of core shift pin shaft 2 are provided with positioning convex platform 21, and the other end is provided with connection
Column 22, core shift pin shaft 2 penetrate in pin shaft hole 11, and are contacted with positioning convex platform 21 on first positioning step 12, location rubber ring 3 from
22 direction of connecting column of core shift pin shaft 2 penetrates, and is entrapped on positioning groove 13, and cylindrical surface 41, cylinder are provided on side cock 4
Link slot 42 and the second positioning step 43 are provided on face 41, side cock 4 is penetrated on connecting column 22 by link slot 42, and makes to justify
Cylinder 41 is caught in the inner hole surface of location rubber ring 3, and the second positioning step 43 compresses location rubber ring 3, is provided with knob on locating piece 5
Spring 6 and fixture block 52, locating piece 5 and the snap-in connection of side cock 4, and contact knob spring 6 with side cock 4, fixture block 51 and
Card slot 14 connects.
When installment work, first core shift pin shaft 2 is penetrated in pin shaft hole 11, makes positioning convex platform 21 in the first positioning step 12
Axially position on one direction, then penetrates location rubber ring 3 from core shift pin shaft 2, and location rubber ring 3 is made to be caught in positioning groove 13
It is interior, realize the axially position in 2 another direction of core shift pin shaft, then the link slot 42 on side cock 4 is directed at connecting column 22,
Side cock 4 is penetrated on core shift pin shaft 2, is caught in the cylindrical surface 41 on side cock 4 in the inner hole surface of location rubber ring 3, and make cylinder
The second positioning step 43 on face 41 compresses location rubber ring 3, and the locating piece 5 for being equipped with knob spring 6 is finally caught in side cock 4
On, and be connected to the card slot 14 on pin shaft hole 11 Nei by fixture block 51, link slot 42 and the connecting column 22 of side cock 4 are all provided with
There is folk prescription, successively transmits torque.
The axial direction positioning device of the utility model, structure is simple, and location rubber ring 3 is embedded in the positioning groove 13 of pin shaft hole 11
It is interior, and the cylindrical surface 41 on side cock 4 is supported on to the bore area of positioning 3, and make the second positioning step on cylindrical surface 41
43 compress location rubber ring 3, on the one hand prevent location rubber ring 3 from deforming, are detached from out of pin shaft hole so as to cause core shift pin shaft 2；It is another
Aspect guarantees the tight fit of location rubber ring 3 and 11 inner wall of pin shaft hole due to the support on cylindrical surface 41, plays good sealing and makees
With playing a dual role of positioning and sealing by location rubber ring 3, effectively reduce the occupied space of location structure, also just
In assembly or disassembly.
Side cock 4 is fixedly connected with core shift pin shaft 2 by tapping screw 7.Tapping screw 7 play locking side cock 4 and partially
The effect of core pin axis 2, to improve the locating effect between each accessory.
Spring retention posts 52 are provided on locating piece 5,6 sets of knob spring on spring retention posts 52.Above-mentioned design, can be with
Knob spring 6 is positioned, the stability in use of product is improved.
It is provided with guide groove 44 on side cock 4, guide groove 44 is corresponded on locating piece 5 and is provided with back-off 53, locating piece 5 passes through
Guide groove 44 squeezes into the connection of side cock 4, and is fixed by 53 positioning of back-off.Locating piece 5 and side cock 4 can be improved in above-mentioned design
Between connective stability, and certain positioning action is played, to improve the stability in use of product.
The embodiments of the present invention is explained in detail in conjunction with attached drawing above, but the utility model is not limited to be retouched
The embodiment stated.For a person skilled in the art, right in the case where not departing from the utility model principle and spirit
These embodiments carry out a variety of change, modification, replacement and modification, still fall in the protection scope of the utility model.
Claims (4)
1. a kind of electric tool axial direction positioning device, including gearbox, it is characterised in that: be provided with a pin on the gearbox
Axis hole, the inner wall of the pin shaft hole are provided with the first positioning step, positioning groove and card slot, further include core shift pin shaft, position glue
Circle, side cock and locating piece, one end of the core shift pin shaft are provided with positioning convex platform, and the other end is provided with connecting column, described inclined
Core pin axis penetrates in the pin shaft hole, and is contacted with the positioning convex platform on first positioning step, the location rubber ring
It penetrates, and is entrapped on the positioning groove from the connecting column direction of the core shift pin shaft, be provided with cylinder on the side cock
Face is provided with link slot and the second positioning step on the cylindrical surface, and the side cock penetrates the company by the link slot
It connects on column, and is caught in the cylindrical surface in the inner hole surface of the location rubber ring, second positioning step compresses the positioning
Cushion rubber is provided with knob spring and fixture block, the locating piece and the snap-in connection of the side cock on the locating piece, and makes institute
It states knob spring to contact with the side cock, the fixture block is connect with the card slot.
2. a kind of electric tool axial direction positioning device according to claim 1, it is characterised in that: the side cock and institute
Core shift pin shaft is stated to be fixedly connected by tapping screw.
3. a kind of electric tool axial direction positioning device according to claim 1, it is characterised in that: set on the locating piece
Spring retention posts are equipped with, the knob spring pocket is on the spring retention posts.
4. a kind of electric tool axial direction positioning device according to claim 1, it is characterised in that: set on the side cock
It is equipped with guide groove, the guide groove is corresponded on the locating piece and is provided with back-off, the locating piece is squeezed by the guide groove
The side cock connection, and fixed by back-off positioning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821677858.1U CN209077859U (en) | 2018-10-16 | 2018-10-16 | A kind of electric tool axial direction positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821677858.1U CN209077859U (en) | 2018-10-16 | 2018-10-16 | A kind of electric tool axial direction positioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209077859U true CN209077859U (en) | 2019-07-09 |
Family
ID=67119351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821677858.1U Active CN209077859U (en) | 2018-10-16 | 2018-10-16 | A kind of electric tool axial direction positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209077859U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110435675A (en) * | 2019-08-30 | 2019-11-12 | 北京起重运输机械设计研究院有限公司 | Pin positioning device and docking beam |
-
2018
- 2018-10-16 CN CN201821677858.1U patent/CN209077859U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110435675A (en) * | 2019-08-30 | 2019-11-12 | 北京起重运输机械设计研究院有限公司 | Pin positioning device and docking beam |
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