CN209708890U - A kind of dust-proof plate machine speed regulation switch of band machinery speed-limitation structure - Google Patents
A kind of dust-proof plate machine speed regulation switch of band machinery speed-limitation structure Download PDFInfo
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- CN209708890U CN209708890U CN201920465988.7U CN201920465988U CN209708890U CN 209708890 U CN209708890 U CN 209708890U CN 201920465988 U CN201920465988 U CN 201920465988U CN 209708890 U CN209708890 U CN 209708890U
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- acting arm
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- plate machine
- push shaft
- stationary contact
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Abstract
A kind of dust-proof plate machine speed regulation switch of band machinery speed-limitation structure provided by the utility model, including base body, upper cover, push shaft, positioning column, trigger and reset spring, push shaft is equipped with position limiting slide block, position limiting slide block is equipped with commutation driving lever, the lower section of push shaft is equipped with acting arm A and acting arm B, pedestal is equipped with below acting arm A and acting arm B, pedestal is equipped with stationary contact elastic slice A, stationary contact elastic slice B and acting arm bracket, and acting arm A and acting arm B are located on acting arm bracket；The inside of trigger is equipped with two limit ribs, and the side of position limiting slide block is equipped with two positive stop lug boss cooperate with two limit ribs, and commutation driving lever, which is equipped with, stirs boss, and the top of position limiting slide block is equipped with and the wedge block stirring boss and cooperate；Acting arm A and acting arm B sets movable contact, and stationary contact elastic slice A and stationary contact elastic slice B are equipped with stationary contact.Not only have common plate machine speed regulation switch in non-throttling state energy closed-lock, but also have and in speed limit state cannot be closed the mechanical speed limiting function of locking.
Description
Technical field
The utility model relates to a kind of dust-proof plate machine speed regulation switchs of band machinery speed-limitation structure.
Background technique
Such plate machine speed regulation switch function currently on the market is substantially similar, but has following functions defect:
1, commonly using plate machine speed regulation switch push shaft cross section is square, easily enters dust in tool use process,
When dust accumulation to a certain extent when will cause the cold situation of switch, switch internal can be caused if into metallic dust
Short circuit, or even burn and cause fire, there are major safety risks, do not meet the requirement of national safety standard.
2, there was only most basic speed-regulating function, but its mechanical speed limiting function is by increasing by a limit rib on trigger, with changing
Limit rib is withstood to driving lever to realize speed limit.When push switch dynamics is bigger, switch can also be pressed against bottom, or even go out
Existing mechanical structure damage, causes switch that can not normally spring back and tool is made to be constantly in energized state.There are security risks, are not inconsistent
Close the requirement of national safety standard.
Utility model content
The purpose of this utility model is that avoiding above-mentioned deficiency, a kind of dust-proof trigger speed regulation of band machinery speed-limitation structure is provided
Switch.
A kind of dust-proof plate machine speed regulation switch of band machinery speed-limitation structure provided by the utility model, the speed-regulating switch include
Base body, upper cover, push shaft, positioning column, trigger and reset spring are provided with position limiting slide block, the position limiting slide block on the push shaft
On be provided with commutation driving lever, acting arm A and acting arm B, the acting arm A and acting arm B are provided with below the push shaft
Lower section is provided with pedestal, is provided with stationary contact elastic slice A, stationary contact elastic slice B and acting arm bracket on the pedestal, the acting arm A and
Acting arm B is arranged on the acting arm bracket；Two limit ribs are provided on the inside of the trigger, the position limiting slide block
Side is provided with two positive stop lug boss with two limit rib cooperations, is provided on the commutation driving lever and stirs boss, institute
It states and is provided at the top of position limiting slide block and the wedge block for stirring boss cooperation；It is respectively provided on the acting arm A and acting arm B
Stationary contact is provided on movable contact, the stationary contact elastic slice A and stationary contact elastic slice B.
A kind of dust-proof plate machine speed regulation switch of band machinery speed-limitation structure provided by the utility model further includes following attached skill
Art scheme:
Wherein, footstock is provided with above the push shaft, the footstock side is provided with limiting slot, sets at the top of the footstock
It is equipped with limited post, limited block is provided on the position limiting slide block, is provided with limit hole, the position limiting slide block on the commutation driving lever
On limited block and the limiting slot of the footstock side cooperate, the limit on limited post and the commutation driving lever at the top of the footstock
Position Kong Peihe.
Wherein, it is provided with circular hole in the middle part of the commutation driving lever, is provided with rivet on the circular hole.
Wherein, the one end the acting arm A is provided with clamp, and one end of the acting arm B is provided with hook, the clamp with
The hook is contacted with the bottom of the push shaft.
Wherein, tension spring is provided between the acting arm A and acting arm B and pedestal, one end of the tension spring is fixed on
On acting arm A and acting arm B, the other end of the tension spring is fixed on the base.
Wherein, there are two skewed slots, the tension spring to be placed in the skewed slot of the pedestal for setting on the pedestal.
Wherein, it is respectively provided in the middle part of the acting arm A and acting arm B there are two rectangular through-hole, two of pedestal are described tiltedly
Cylinder is provided in slot, one end of the tension spring hooks in the rectangular through-hole, and the other end of the tension spring is hooked in the circle
On column.
Wherein, it is provided with base body half-round cross hole on the base body, upper cover half-round cross hole, institute are provided on the upper lid
It states base body half-round cross hole and the upper cover half-round cross hole forms push shaft through-hole, be arranged between the push shaft through-hole and the push shaft
There is sealing ring.
The implementation of the utility model includes following technical effect:
1, the trigger with mechanical speed limiting function of the utility model adjusts the speed dust-proof switch, both has common plate machine speed regulation switch
In non-throttling state energy closed-lock, and has and in speed limit state cannot be closed the mechanical speed limiting function of locking.
2, the utility model is compact-sized, simple process, and cost and common speed-regulating switch are not much different, and working service is repaired
Simply, Power Tools Industries be can be widely used for.Silicon-controlled electronic speed limit is realized using two compared with plate machine speed regulation switch is commonly used
Function is compared, and cost reduces very much, economic benefits.
Detailed description of the invention
Fig. 1 is a kind of perspective view of the dust-proof plate machine speed regulation switch of band machinery speed-limitation structure of the utility model.
Fig. 2 is a kind of partial exploded view of the dust-proof plate machine speed regulation switch of band machinery speed-limitation structure of the utility model.
Fig. 3 is that a kind of dust-proof plate machine speed regulation switch of band machinery speed-limitation structure of the utility model is under speed limit state
Partial cutaway view.
Fig. 4 is that a kind of dust-proof plate machine speed regulation switch of band machinery speed-limitation structure of utility model is under non-throttling state
Partial cutaway view.
Fig. 5 is a kind of explosive view of the dust-proof plate machine speed regulation switch of band machinery speed-limitation structure of the utility model.
In figure, 1- base body, 2- upper cover, 3- push shaft, 4- positioning column, 5- trigger, 6- reset spring, 7- position limiting slide block, 8-
Commutate driving lever, 9A- acting arm A, 9B- acting arm B, 10- pedestal, 11A- stationary contact elastic slice A, 11B- stationary contact elastic slice B, 12- acting arm
Bracket, 13- footstock, 14- tension spring, 15- sealing ring, 51- limit rib, 71- positive stop lug boss, 72- wedge block, 73- limited block, 81-
Stir boss, 82- limit hole, 83- circular hole, 91- movable contact, 92- clamp, 93- hook, 94- rectangular through-hole, 111- stationary contact,
131- limiting slot, 132- limited post, 1001- skewed slot, 1002- cylinder, 101- base body half-round cross hole, 21- upper cover half-round cross hole.
Specific embodiment
The utility model is described in detail below in conjunction with embodiment and attached drawing, it should be pointed out that described
Embodiment be intended merely to facilitate the understanding to the utility model, and do not play any restriction effect to it.Side described herein
Position is for example to compare the convenience of attached drawing description and use up and down, does not constitute the restriction to protection scope.
As shown in Figs. 1-5, the dust-proof plate machine speed regulation switch of a kind of band machinery speed-limitation structure provided by the utility model, including
Base body 1, upper cover 2, push shaft 3, positioning column 4, trigger 5 and reset spring 6 are provided with position limiting slide block 7 on the push shaft 3, described
Commutation driving lever 8 is provided on position limiting slide block 7, the lower section of the push shaft 3 is provided with acting arm A9A and acting arm B9B, described dynamic
It is provided with pedestal 10 below contact arm A9A and acting arm B9B, stationary contact elastic slice A11A, stationary contact elastic slice are provided on the pedestal 10
B11B and acting arm bracket 12, the acting arm A9A and acting arm B9B are arranged on the acting arm bracket 12；It is described to pull
The inside of machine 5 is provided with two limit ribs 51, and the side of the position limiting slide block 7, which is provided with, to be cooperated with two limit ribs 51
Two positive stop lug boss 71 are provided on the commutation driving lever 8 and stir boss 81, and the top of the position limiting slide block 7 is provided with and institute
State the wedge block 72 for stirring the cooperation of boss 81；The acting arm A9A and acting arm B9B is respectively provided with movable contact 91, the stationary contact bullet
Stationary contact 111 is provided on piece A11A and stationary contact elastic slice B11B.The trigger speed regulation with mechanical speed limiting function of the utility model
Dust-proof switch not only has common plate machine speed regulation switch in non-throttling state energy closed-lock, but also having cannot be by speed limit state
The mechanical speed limiting function of closed-lock.The utility model is compact-sized, simple process, and cost and common speed-regulating switch difference are not
Greatly, working service is repaired simple, can be widely used for Power Tools Industries.It is silicon-controlled using two compared with plate machine speed regulation switch is commonly used
Realize that electronic speed limit function is compared, cost reduces very much, economic benefits.
As shown in Figs. 1-5, the top of the push shaft 3 is provided with footstock 13, and 13 side of footstock is provided with limiting slot
131, the footstock top is provided with limited post 132, and limited block 73, the commutation driving lever 8 are provided on the position limiting slide block 7
On be provided with limit hole 82, the limiting slot 131 of the limited block 73 on the position limiting slide block 7 and 13 side of footstock cooperates, institute
The limit hole 82 stated on the limited post 132 and the commutation driving lever 8 at 13 top of footstock cooperates.
As shown in Fig. 2,5, the middle part of the commutation driving lever 8 is provided with circular hole 83, is provided with rivet 84 on the circular hole 83.
Preferably, as shown in figure 5, the one end the acting arm A9A is provided with clamp 92, one end of the acting arm B9B is set
It is equipped with hook 93, the clamp 92 is contacted with the bottom of the push shaft 3 with the hook 93.
As in Figure 3-5, tension spring 14, the drawing are provided between the acting arm A9A and acting arm B9B and pedestal 10
One end of spring 14 is fixed on acting arm A9A and acting arm B9B, and the other end of the tension spring 14 is fixed on pedestal 10.
As shown in Figure 4,5, there are two skewed slots 1001, the tension spring to be placed on the pedestal 10 for setting on the pedestal 10
In skewed slot 1001.
As shown in figure 5, being respectively provided in the middle part of the acting arm A9A and acting arm B9B, there are two rectangular through-hole 94, pedestals 10
Two skewed slots 1001 in be provided with cylinder 1002, one end of the tension spring 14 hooks the institute in the rectangular through-hole 94
The other end for stating tension spring 13 hooks on the cylinder 1002.
As shown in figure 5, being provided with base body half-round cross hole 101 on the base body 1, upper cover is provided in the upper cover 2
Half-round cross hole 21, the base body half-round cross hole 101 form push shaft through-hole, the push shaft through-hole with the upper cover half-round cross hole 21
Sealing ring 15 is provided between the push shaft 3.
A kind of dust-proof plate machine speed regulation switch of band machinery speed-limitation structure provided by the utility model, it is real by following process
Existing speed limiting function.
As shown in figure 3, setting is in commutation driving lever 8 when commutation driving lever 8 being allocated to the right the state of speed limit and by trigger squeeze
The boss 81 of stirring of bottom acts on the wedge block 72 at the top of position limiting slide block 7, and by wedge block 72 drive position limiting slide block 7 to
Lower slider, two positive stop lug boss 71 on position limiting slide block 7 are just withstood with two limit ribs 51 inside trigger 5, make switch only
It can be pressed into certain stroke, thus prevent movable contact on acting arm B9B from the stationary contact point contact with stationary contact elastic slice B11B, with
Reach the limit output voltage of requirement.
As shown in figure 4, position limiting slide block 7 is multiple when commutation driving lever 8 being allocated to non-throttling state to the left and by trigger squeeze
Under the action of the spring 6 of position, two positive stop lug boss 71 on position limiting slide block 7 just avoid the limit rib 51 inside trigger 5, at this moment
Trigger squeeze 5 is pressed to bottom of travel, acting arm B9B can be with contact flat spring B11B contact, and at this moment switch can achieve full voltage shape
State, switch have normal speed-regulating function and full voltage output.
Finally it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than to this reality
With the limitation of novel protected range, although being explained in detail referring to preferred embodiment to the utility model, this field it is general
Lead to it will be appreciated by the skilled person that can be with the technical solution of the present invention is modified or equivalently replaced, without departing from this
The spirit and scope of utility model technical solution.
Claims (8)
1. a kind of dust-proof plate machine speed regulation switch of band machinery speed-limitation structure, which is characterized in that the speed-regulating switch include base body,
Upper cover, push shaft, positioning column, trigger and reset spring are provided with position limiting slide block on the push shaft, are provided on the position limiting slide block
Commutate driving lever, and the lower section setting of acting arm A and acting arm B, the acting arm A and acting arm B are provided with below the push shaft
There is pedestal, stationary contact elastic slice A, stationary contact elastic slice B and acting arm bracket are provided on the pedestal, the acting arm A and acting arm B are equal
It is arranged on the acting arm bracket；Two limit ribs, the side setting of the position limiting slide block are provided on the inside of the trigger
There are two positive stop lug boss with two limit rib cooperations, is provided on the commutation driving lever and stirs boss, the limit is slided
It is provided at the top of block and the wedge block for stirring boss cooperation；It is respectively provided with movable contact on the acting arm A and acting arm B,
Stationary contact is provided on the stationary contact elastic slice A and stationary contact elastic slice B.
2. a kind of dust-proof plate machine speed regulation switch of band machinery speed-limitation structure according to claim 1, it is characterised in that: described
Footstock is provided with above push shaft, the footstock side is provided with limiting slot, is provided with limited post, the limit at the top of the footstock
Position sliding block on be provided with limited block, be provided with limit hole on the commutation driving lever, the limited block on the position limiting slide block with it is described
The limiting slot of footstock side cooperates, and the limit hole on limited post and the commutation driving lever at the top of the footstock cooperates.
3. a kind of dust-proof plate machine speed regulation switch of band machinery speed-limitation structure according to claim 2, it is characterised in that: described
It is provided with circular hole in the middle part of commutation driving lever, is provided with rivet on the circular hole.
4. a kind of dust-proof plate machine speed regulation switch of band machinery speed-limitation structure according to any one of claim 1-3, special
Sign is: the one end the acting arm A is provided with clamp, and one end of the acting arm B is provided with hook, the clamp and the card
Hook is contacted with the bottom of the push shaft.
5. a kind of dust-proof plate machine speed regulation switch of band machinery speed-limitation structure according to claim 4, it is characterised in that: described
Tension spring is provided between acting arm A and acting arm B and pedestal, one end of the tension spring is fixed on acting arm A and acting arm B
On, the other end of the tension spring is fixed on the base.
6. a kind of dust-proof plate machine speed regulation switch of band machinery speed-limitation structure according to claim 5, it is characterised in that: described
There are two skewed slots, the tension spring to be placed in the skewed slot of the pedestal for setting on pedestal.
7. a kind of dust-proof plate machine speed regulation switch of band machinery speed-limitation structure according to claim 6, it is characterised in that: described
It is respectively provided in the middle part of acting arm A and acting arm B there are two rectangular through-hole, is provided with cylinder in two skewed slots of pedestal,
One end of the tension spring hooks in the rectangular through-hole, and the other end of the tension spring hooks on the cylinder.
8. a kind of according to claim 1-3, the dust-proof plate machine speed regulation switch of band machinery speed-limitation structure described in any one of 5-7,
It is characterized by: being provided with base body half-round cross hole on the base body, upper cover half-round cross hole is provided on the upper lid, it is described
Base body half-round cross hole and the upper cover half-round cross hole form push shaft through-hole, are provided between the push shaft through-hole and the push shaft
Sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920465988.7U CN209708890U (en) | 2019-04-09 | 2019-04-09 | A kind of dust-proof plate machine speed regulation switch of band machinery speed-limitation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920465988.7U CN209708890U (en) | 2019-04-09 | 2019-04-09 | A kind of dust-proof plate machine speed regulation switch of band machinery speed-limitation structure |
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| Publication Number | Publication Date |
|---|---|
| CN209708890U true CN209708890U (en) | 2019-11-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920465988.7U Active CN209708890U (en) | 2019-04-09 | 2019-04-09 | A kind of dust-proof plate machine speed regulation switch of band machinery speed-limitation structure |
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| CN (1) | CN209708890U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113921311A (en) * | 2021-09-30 | 2022-01-11 | 浙江佳奔电子有限公司 | Mini DC brushless trigger signal switch |
-
2019
- 2019-04-09 CN CN201920465988.7U patent/CN209708890U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113921311A (en) * | 2021-09-30 | 2022-01-11 | 浙江佳奔电子有限公司 | Mini DC brushless trigger signal switch |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 325608 Longze village and Nanyang Village, Hongqiao Town, Yueqing City, Wenzhou City, Zhejiang Province Patentee after: ZHEJIANG JIABEN ELECTRONICS Co.,Ltd. Address before: 325609 Tiancheng Industrial Zone, Yueqing City, Wenzhou City, Zhejiang Province Patentee before: ZHEJIANG JIABEN ELECTRONICS Co.,Ltd. |