CN203390900U - Working head replacement device in multifunctional handheld electric tool - Google Patents
Working head replacement device in multifunctional handheld electric tool Download PDFInfo
- Publication number
- CN203390900U CN203390900U CN201320386911.3U CN201320386911U CN203390900U CN 203390900 U CN203390900 U CN 203390900U CN 201320386911 U CN201320386911 U CN 201320386911U CN 203390900 U CN203390900 U CN 203390900U
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- CN
- China
- Prior art keywords
- working head
- fast
- quick clamping
- pressing plate
- power transmission
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- Expired - Lifetime
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Abstract
The utility model discloses a working head replacement device in a multifunctional handheld electric tool. The working head replacement device comprises a head shell and a working head locking spanner with a quick clamping cam. The working head locking spanner and the quick clamping cam are hinged to the top of the head shell through a pin roll. A quick clamping driving shaft with a step-shaped cavity inside is installed in the head shell. A quick clamping compression spring pressing plate and a positioning pin are arranged at the bottom of the quick clamping driving shaft. A quick clamping core shaft with a shaft shoulder is movably arranged in the quick clamping driving shaft. The upper end of the quick clamping core shaft stretches out of the quick clamping driving shaft. The lower end of the quick clamping core shaft movably penetrates through the quick clamping compression spring pressing plate, and then a working head pressing plate is installed at the lower end. A quick clamping compression spring is arranged between the shaft shoulder of the quick clamping core shaft and the quick clamping compression spring pressing plate. The quick clamping core shaft moves upwards under the effect of the elastic force of the quick clamping compression spring to enable the working head pressing plate and the quick clamping driving shaft to tightly clamp a working head. When the quick clamping cam rotates around the pin roll, the outer profile of the quick clamping cam can gradually and downwards press the quick clamping core shaft till the working head pressing plate is moved to a position at which the working head is convenient to disassemble and assemble. The working head replacement device in the multifunctional handheld electric tool has the advantage of high working efficiency.
Description
Technical field
The utility model relates to more changing device of working head in Multifunctional hand-held electric tool.
Background technology
In recent years, the combining form that Multifunctional hand-held electric tool can conveniently change instrument with it, enjoys the favor of users at home and abroad.Multifunctional hand-held electric tool is the high-frequency reciprocating swing cutting that a kind of employing has more flexibility, there is perpendicular cuts, without powers such as dead angle cuttings, and the multinomial utility function such as have polishing concurrently, shovel, cut, having solved the operational barrier everywhere of traditional engineering, is the indispensable instrument of household dress of new generation.In the Multifunctional hand-held electric tool using at present, in its fast folder power transmission shaft bottom, four alignment pins are installed, working head and four alignment pins cooperatively interact and locate and be clamped between working head pressing plate and fast folder power transmission shaft, and working head pressing plate keeps the chucking power to working head by the trip bolt being threaded with it; When changing working head, need to first unload the trip bolt that is fixed on working head pressing plate lower end, and then unload the replacing operation that just can carry out working head after working head pressing plate, after changing, then install successively respectively working head pressing plate and trip bolt.The substitute mode of this working head not only wastes time and energy, and inefficiency.
Utility model content
The purpose of this utility model is to provide a kind of easy to operate, and can greatly improve more changing device of working head in the Multifunctional hand-held electric tool of working head dismounting and installation effectiveness.
For achieving the above object, the utility model has adopted following technical scheme: the working head in described Multifunctional hand-held electric tool is changing device more, comprise head capsule, and end is embedded with the working head locking wrench of fast folder cam, working head locking wrench is articulated with the top of head capsule with fast folder cam by a bearing pin, in head capsule below fast folder cam, be vertically provided with fast folder power transmission shaft, in fast folder power transmission shaft, offer stairstepping inner chamber, in fast folder power transmission shaft below stairstepping inner chamber, be provided with fast cramping spring pressing plate, bottom at fast folder power transmission shaft is at least provided with two in order to locate the alignment pin of working head, in fast folder power transmission shaft, be also provided with the fast sandwich axle that can move up and down and be provided with the shaft shoulder in its stairstepping inner chamber, fast sandwich Zhou stretches out upper end fast folder power transmission shaft, lower end is movable through being fixed with working head pressing plate after fast cramping spring pressing plate, the shaft shoulder and fast cramping between spring pressing plate at fast sandwich axle are provided with fast cramping spring, fast sandwich axle and working head pressing plate have all the time the trend moving upward under the power that the upsprings effect of fast cramping spring, make working head pressing plate and the bottom surface of fast folder power transmission shaft can be clamping shape clamping working head, at working head locking wrench, drive fast folder cam in the process of bearing pin rotation, the foreign steamer Guo face of fast folder cam can compress fast sandwich Zhou top gradually downwards, the upwards elastic force that makes fast sandwich axle overcome fast cramping spring moves down, and the moving working head pressing plate of Timing Belt is moved downward to can disassemble and assemble work Tou position.
Further, the working head in aforesaid Multifunctional hand-held electric tool is changing device more, wherein: on head capsule, be also provided with the spanner bayonet socket that can lock working head locking wrench.
By the enforcement of technique scheme, the beneficial effects of the utility model are: simple in structure, and extremely convenient to the dismounting of working head and installation, greatly improved operating efficiency.
Accompanying drawing explanation
Fig. 1 is the more structural representation of changing device of working head in Multifunctional hand-held electric tool described in the utility model.
Fig. 2 is working state schematic representation during working head locking wrench disassemble and assemble work head in Fig. 1.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As Fig. 1, shown in Fig. 2, working head in described Multifunctional hand-held electric tool is changing device more, comprise head capsule 1, and end is embedded with the working head locking wrench 3 of fast folder cam 2, working head locking wrench 3 is articulated with the top of head capsule 1 with fast folder cam 2 by a bearing pin 4, in head capsule 1 below fast folder cam 2, be vertically provided with fast folder power transmission shaft 5, in fast folder power transmission shaft 5, offer stairstepping inner chamber, in fast folder power transmission shaft 5 below stairstepping inner chamber, be provided with fast cramping spring pressing plate 6, in the present embodiment, the fast spring pressing plate 6 that clamps is fastened in fast folder power transmission shaft 5 with thread connecting mode, easy accessibility so not only, also improved the service life of fast folder power transmission shaft 5, bottom at fast folder power transmission shaft 5 is at least provided with two in order to locate the alignment pin 8 of working head 7, in the present embodiment, in the bottom of fast folder power transmission shaft 5, is pressed with four alignment pins 8, and so not only cost is low, and can locate better working head 7, in fast folder power transmission shaft 5, be also provided with and can in its stairstepping inner chamber, move up and down, and be provided with the fast sandwich axle 10 of the shaft shoulder 9, fast sandwich Zhou10 stretches out fast folder power transmission shaft 5 in upper end, lower end is movable through being fixed with working head pressing plate 11 after fast cramping spring pressing plate 6, shaft shoulder lower end and fast cramping between spring pressing plate 6 at fast sandwich axle 10 are provided with fast cramping spring 12, fast sandwich axle 10 has all the time the trend that moves up to its shaft shoulder 9 cascaded surface of stairstepping inner chamber in being attached to fast folder power transmission shaft 5 under the power that the upsprings effect of fast cramping spring 12, the moving working head pressing plate 11 of Timing Belt has the trend moving upward all the time, make working head pressing plate 11 and the bottom surface of fast folder power transmission shaft 5 can be clamping shape clamping working head 7, at working head locking wrench 3, drive fast folder cam 2 in the process of bearing pin 4 rotations, the foreign steamer Guo face of fast folder cam 2 can compress fast sandwich Zhou10 top gradually downwards, the upwards elastic force that makes fast sandwich axle 10 overcome fast cramping spring 12 moves down, and the moving working head pressing plate 11 of Timing Belt is moved downward to the position of energy disassemble and assemble work head 7, in the present embodiment, on head capsule 1, be also provided with the spanner bayonet socket 13 that can lock working head locking wrench 3, like this when working head locking wrench 3 need not drive 2 pairs of fast sandwich Zhou10 tops of fast folder cam to compress, working head locking wrench 3 can be buckled in spanner bayonet socket 13, improve device security.
Operation principle of the present utility model is as follows: under original state, working head locking wrench 3 is buckled in spanner bayonet socket 13, during fast sandwich axle 10 its shaft shoulder 9 under the power that the upsprings effect of fast cramping spring 12 supports and is attached to fast folder power transmission shaft 5, on the cascaded surface of stairstepping inner chamber, make working head pressing plate 11 can be with the bottom surface of fast folder power transmission shaft 5 clamping shape and clamp working head 7, dismantlement work 7 o'clock, upset working head locking wrench 3, making working head locking wrench 3 throw off spanner bayonet socket 13 rotates around bearing pin 4, the synchronous folder cam 2 soon that drives rotates around bearing pin 4, in the process of rotating around bearing pin 4 at fast folder cam 2, the foreign steamer Guo face of fast folder cam 2 can compress fast sandwich Zhou10 top gradually downwards, the upwards elastic force that makes fast sandwich axle 10 overcome fast cramping spring 12 moves down, the moving working head pressing plate 11 of Timing Belt moves down, until working head pressing plate 11 is not clamping shape clamping working head 7 with the bottom surface of fast folder power transmission shaft 5, at this moment working head 7 can depart from alignment pin 8 downwards under self gravitation effect, then working head 7 is pulled out to the disassembling section having completed working head 7, then the working head 7 of need being changed inserts between the bottom surface and working head pressing plate 11 of fast folder power transmission shaft 5, and working head 7 is fitted on the alignment pin of fast folder power transmission shaft 5 bottoms, then working head locking wrench 3 in the other direction overturns, working head locking wrench 3 drives fast folder cam 2 to turn to original state around bearing pin 4, make the outer surface that presss from both sides soon cam 2 compress fast sandwich Zhou10 top no longer downwards, fast sandwich axle 10 moves up under the power that the upsprings effect of fast cramping spring 12, the moving working head pressing plate 11 of Timing Belt moves up, and be clamping shape clamping working head 7 with the bottom surface of fast folder power transmission shaft 5, pass through aforesaid operations, completed the fitting operation to working head.The utlity model has simple in structure, to the dismounting of working head with the advantage extremely convenient, operating efficiency is high is installed.
Claims (2)
1. the changing device more of the working head in Multifunctional hand-held electric tool, it is characterized in that: comprise head capsule, and end is embedded with the working head locking wrench of fast folder cam, working head locking wrench is articulated with the top of head capsule with fast folder cam by a bearing pin, in head capsule below fast folder cam, be vertically provided with fast folder power transmission shaft, in fast folder power transmission shaft, offer stairstepping inner chamber, in fast folder power transmission shaft below stairstepping inner chamber, be provided with fast cramping spring pressing plate, in the bottom of fast folder power transmission shaft, be at least provided with two in order to locate the alignment pin of working head; In fast folder power transmission shaft, be also provided with the fast sandwich axle that can move up and down and be provided with the shaft shoulder in its stairstepping inner chamber, fast sandwich Zhou stretches out upper end fast folder power transmission shaft, lower end is movable through being fixed with working head pressing plate after fast cramping spring pressing plate, the shaft shoulder and fast cramping between spring pressing plate at fast sandwich axle are provided with fast cramping spring, fast sandwich axle and working head pressing plate have all the time the trend moving upward under the power that the upsprings effect of fast cramping spring, make working head pressing plate and the bottom surface of fast folder power transmission shaft can be clamping shape clamping working head; At working head locking wrench, drive fast folder cam in the process of bearing pin rotation, the foreign steamer Guo face of fast folder cam can compress fast sandwich Zhou top gradually downwards, the upwards elastic force that makes fast sandwich axle overcome fast cramping spring moves down, and the moving working head pressing plate of Timing Belt is moved downward to can disassemble and assemble work Tou position.
2. the changing device more of the working head in Multifunctional hand-held electric tool according to claim 1, is characterized in that: on head capsule, be also provided with the spanner bayonet socket that can lock working head locking wrench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320386911.3U CN203390900U (en) | 2013-07-02 | 2013-07-02 | Working head replacement device in multifunctional handheld electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320386911.3U CN203390900U (en) | 2013-07-02 | 2013-07-02 | Working head replacement device in multifunctional handheld electric tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203390900U true CN203390900U (en) | 2014-01-15 |
Family
ID=49902460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320386911.3U Expired - Lifetime CN203390900U (en) | 2013-07-02 | 2013-07-02 | Working head replacement device in multifunctional handheld electric tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203390900U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433899A (en) * | 2013-07-02 | 2013-12-11 | 张家港市创基机械设备制造有限公司 | Work head replacing device in multi-functional hand-held electric tool |
| CN107309492A (en) * | 2017-08-08 | 2017-11-03 | 浙江金美电动工具有限公司 | A kind of multifunctional saw quick change construction and quick change method |
-
2013
- 2013-07-02 CN CN201320386911.3U patent/CN203390900U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433899A (en) * | 2013-07-02 | 2013-12-11 | 张家港市创基机械设备制造有限公司 | Work head replacing device in multi-functional hand-held electric tool |
| CN107309492A (en) * | 2017-08-08 | 2017-11-03 | 浙江金美电动工具有限公司 | A kind of multifunctional saw quick change construction and quick change method |
| CN107309492B (en) * | 2017-08-08 | 2023-08-29 | 浙江金美电动工具有限公司 | Multifunctional saw quick-change structure and quick-change method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140115 |