CN201534104U - Safety switch mechanism of twig crusher - Google Patents
Safety switch mechanism of twig crusher Download PDFInfo
- Publication number
- CN201534104U CN201534104U CN2009202554571U CN200920255457U CN201534104U CN 201534104 U CN201534104 U CN 201534104U CN 2009202554571 U CN2009202554571 U CN 2009202554571U CN 200920255457 U CN200920255457 U CN 200920255457U CN 201534104 U CN201534104 U CN 201534104U
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- Prior art keywords
- safety switch
- safety
- main part
- chipper
- switch
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Abstract
A safety switch mechanism of a twig crusher is provided, wherein the twig crusher comprises a main body portion, a hopper detachably installed on the main body portion and a tool apron installed in the main body portion, the main body portion further consists of an end cap detachably installed on the tool apron, the safety switch mechanism is composed of a first safety switch and a second safety switch which are arranged in the main body portion, a first trigger assembly connected on the hopper, and a second trigger assembly connected on the end cap, the first and the second safety switches are connected in series with a power main switch of the twig crusher, and the three switches have the states of opening and closing. The safety switch mechanism of the utility model not only can safely protect users when the end cap is not installed in position, but also can safely protect users when the hopper is not installed in position.
Description
Affiliated technical field
The utility model relates to a kind of safety switching mechanism of chipper.
Background technology
Chipper is generally used for the branch in the gardens, branch etc. are shredded so that branch, branch after the chopping are collected and cleared up.This chipper generally comprises main part and is positioned at the hopper of main part below.The top of main part is provided with charging aperture, and portion is equipped with motor, transmission device and cutting tool within it, and wherein cutting tool is installed in the tool rest, and main part is provided with the end cap that covers on the tool rest, and this end cap is dismountable to be covered on the tool rest.Like this; in use need cutting tool is safeguarded or when changing; thereby end cap can be disassembled from tool rest and expose cutting tool to safeguard easily or to change; this just need be provided with a kind of safety guard, thereby prevents that accident from turning on the power switch when exposing cutting tool and make the cutting tool rotation bring personal injury to the operator when end cap disassembles.Prior art provides a kind of like this safety guard; generally be that a microswitch that is in series with power main switch is set; and on end cap, be provided with the trigger unit that triggers microswitch; when end cap is not in place; trigger unit can not trigger microswitch; make power main switch always be in the state of disconnection, machine can not start, and has guaranteed user's personal safety.In addition, treat that broken branch, branch shred by the inboard that charging aperture enters into main part, the branch that has shredded then, branch drop on the ground by the hopper of main part below.In the prior art, the hopper that has is one-body molded with main part, and the hopper that also has is to separate moulding with main part, by securing members such as bolts hopper is fixed on the below of main part then.Like this; when hopper when main part disassembles or be not in place; just can touch cutting tool unexpectedly from the below of main part; thereby there is certain potential safety hazard; so the chipper for this hopper can be dismantled from main part need provide a kind of improved safety switching mechanism; it can not only not provide safeguard protection to the user when end cap is in place, and should be able to not provide safeguard protection to the user when hopper is in place yet.
Summary of the invention
Deficiency for the safeguard protection that overcomes existing chipper; the utility model provides a kind of safety switching mechanism of the chipper that has improved; it can not only not provide safeguard protection to the user when end cap is in place, and can not provide safeguard protection to the user when hopper is in place again yet.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of safety switching mechanism of chipper, described chipper comprises main part, removably be mounted to the hopper on the described main part and be installed in the interior tool rest of described main part, described main part also comprises dismountable end cap that is installed on the described tool rest, it is characterized in that: described safety switching mechanism comprises first safety switch and second safety switch that is arranged in the described main part, be connected first on the described hopper and trigger assembly, and be connected second on the described end cap and trigger assembly, described first, be connected in series mutually between the power main switch three of second safety switch and described chipper and have separately and disconnect and the two states of closure, when described hopper was mounted to described main part, the described first triggering assembly triggers described first safety switch made described first safety switch be in closure state; When described hopper was not mounted to described main part, described first triggering assembly and described first safety switch were separated from each other and make described first safety switch be in the state of disconnection; When described end cap was mounted on the tool rest that is positioned at main part, the described second triggering assembly triggers described second safety switch made described second safety switch be in closure state; When described end cap was not mounted on the tool rest that is positioned at main part, described second triggering assembly and described second safety switch were separated from each other and make described second safety switch be in the state of disconnection.
The beneficial effects of the utility model are, first safety switch by being provided with mutual series connection and second safety switch, can trigger first of first safety switch and trigger assembly and on end cap, be provided with and to trigger second of second safety switch and trigger assembly being provided with on the hopper, and connect mutually between this first, second safety switch and the power main switch three, only make under the situation that hopper and end cap all are in place, first, second safety switch could be triggered respectively, makes power main switch just can be in the state of connection; And when whole in hopper and the end cap or any were not in place, first safety switch and/or second safety switch can not be triggered, and make power main switch be in the state of disconnection all the time, have guaranteed user's personal safety like this, have stopped potential safety hazard.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the assembling stereogram corresponding to the chipper of most preferred embodiment of the present utility model, and safety switching mechanism wherein is broken away.
Fig. 2 is the three-dimensional exploded view of Fig. 1, and wherein the main part of chipper is by biopsy cavity marker devices.
Fig. 3 is the three-dimensional exploded view corresponding to the microswitch box of the chipper of Fig. 2.。
Fig. 4 is the box-packed three-dimensional view that is assigned to main part of the microswitch of Fig. 3.
Fig. 5 is first the partial view of main part when triggering assembly and second and triggering assembly and all do not install of the chipper of Fig. 1.
Fig. 6 has only first to trigger that assembly is in place and second the three-dimensional view when triggering assembly and not being in place.
Fig. 7 has only second to trigger assembly and first the three-dimensional view when triggering assembly and not being in place.
The specific embodiment
Seeing figures.1.and.2, is a kind of chipper corresponding to most preferred embodiment of the present utility model, and chipper is generally used for the gardens branch, and branch etc. shred, the hopper 3 that it mainly comprises main part 1 and is removably mounted on the bottom of main part 1.In addition, this chipper also comprises a frame that has a roller (figure does not show) so that pushing away chipper and move ahead on the ground.
Aforementioned body portion 1 comprises top board 12, offers charging aperture 14 and the power main switch 16 that is arranged on charging aperture 14 sides on top board 12.In main part 1, be provided with motor (figure do not show) and by cutter plate (figure does not show) that motor drove with the tool rest 18 of cutter plate support fixation in the main part 1.For the ease of cutter plate being safeguarded or being changed, also be provided with dismountable drive end bearing bracket 11 that is mounted on the described tool rest 18 on the main part 1, make and to open this drive end bearing bracket 11, just can expose tool rest 18 interior cutter plates so that cutter plate is safeguarded or changed.
With further reference to Fig. 3 to Fig. 5, above-mentioned chipper also is provided with a kind of safety switching mechanism 2, and described safety switching mechanism 2 comprises first safety switch 20, is connected triggering assembly 24, second safety switch 22 of first on the described hopper 3 and is connected second on described tool rest 18 and the described end cap 11 and trigger assembly 26.
Above-mentioned first, second safety switch 20,22 is microswitch, and the two is cascaded mutually by lead 25, and then is connected in series mutually with the power main switch 16 of described chipper.This first, second safety switch 20,22 all has the two states of disconnection and closure and all is arranged in the switch enclosure 28.Described switch enclosure 28 roughly is made of double structure, is provided with outward extending two pairs of latches 30 in it inserting in first, second safety switch 20,22 corresponding jacks 32, thereby first, second safety switch 20,22 is fixed in the switch enclosure 28.In the inside edge of switch enclosure 28, to be meshed switch enclosure 28 assemblings of double structure are finished with pair of bolts 38 thereby also be provided with pair of bolts hole 36.In addition, also be outward extended with one first hollow posts 40 respectively in the two sides of switch enclosure 28 and one second hollow posts 42 can be accommodated the contact 21 of first safety switch 20 and the contact 23 of second safety switch 22 respectively.Simultaneously, this first hollow posts 40 can be housed in the through hole 17 that is arranged on the lower cover 13 (Fig. 5), and second hollow posts 42 can be housed in the accepting hole 182 that is located in the tool rest 18 (appearance aftermentioned).In addition, on the end face of switch enclosure 28, be extended with convex 44, and on convex 44, offer through hole 46, thereby screw 48 is passed through hole 46 then and the switch enclosure 28 that will be connected to after will assembling on the lower cover 13 is fixed on the lower cover 13 of main part 1.
With further reference to Fig. 6, above-mentioned first triggers assembly 24 comprises first push rod 31 that is fixedly connected on the described hopper 3.When hopper 3 is mounted to the lower cover 13 of described main part 1 rightly, this first push rod 31 can pass the through hole 17 that is positioned on the lower cover 13 switch enclosure 28 first hollow posts 40 and contact with the contact 21 of above-mentioned first safety switch 20, make it be in closed state thereby trigger first safety switch 20.
With reference to Fig. 2 and Fig. 7, the accepting hole 182 that above-mentioned tool rest 18 is provided with the lengthwise type triggers assembly 26 to accommodate above-mentioned second.This second triggers assembly 26 and mainly comprises second push rod 33 that is provided with in the described tool rest 18 and described end cap 11 is connected to bolt 35 on the described tool rest 18.When described bolt 35 was connected to described end cap 11 on the described tool rest 18 fully, described bolt 35 can promote described second push rod 33, made that described second push rod 33 is matched with the contact 23 of described second safety switch 22.In addition, described second triggers assembly 26 also comprises lining 37, and described lining 37 is housed in the accepting hole 182 of described tool rest 18, and described second push rod 33 partly is housed in the described lining 37.Also be provided with flexible member 39 in the described lining, this flexible member is a stage clip, it is arranged between the end 332 of the bottom surface of described lining 37 and described second push rod 33, thereby and lining 37 is stretched out in the other end 334 of this second push rod 33 and second hollow posts 42 that enters the switch enclosure 28 that is positioned at accepting hole 182 contacts with the contact 23 of above-mentioned second safety switch 22.Like this, after above-mentioned tool rest 18 is fixed to aforementioned body portion 1 by bolt (figure does not show), end cap 11 covers the front end face 182 of tool rest 18 then, by bolt 35 end cap 11 is fixed on the described tool rest 18 again, at this moment, bolt 35 passes the bolt hole 112 of end cap 11 and enters in the accepting hole 182 of tool rest 18, and promote to be positioned at the lining 37 of accepting hole 182, thereby thereby the second end 334 that promotes the second interior push rod 33 of lining 37 so that second push rod 33 depress the contact 23 of second safety switch 22 and make second safety switch 22 be in closure state.
By the way, as seen safety switching mechanism of the present utility model is provided with two mutually safety switch 20,22 and corresponding two triggering assemblies 24,26 that can trigger these two safety switches of serial connection, and these two are triggered on assemblies 24,26 are connected in hopper 3, end cap 11 and the tool rest 18.When having only hopper 3 to be in place, perhaps have only under the situation that end cap 11 is in place, have only the safety switch matched to be triggered with it, and the another one safety switch still is in the state of disconnection, make the state that is in disconnection with its power main switch that is connected in series mutually 16 all the time, can not start the running of cutter plate, eliminate because the potential safety hazard that hopper 3 and/or end cap 11 are not in place; Have only under the situation that hopper 3 and end cap 11 all is in place simultaneously, the coupled first triggering assembly 24 and second triggers assembly 26 and can trigger first safety switch 20 and second safety switch 22 respectively, make power main switch could might be in closed state and start the running of cutter plate, guaranteed user's handling safety like this; And, such safety switching mechanism relatively simple for structure, cost is cheaper.
Claims (10)
1. the safety switching mechanism of a chipper, described chipper comprises main part, removably be mounted to the hopper on the described main part and be installed in the interior tool rest of described main part, described main part also comprises dismountable end cap that is installed on the described tool rest, it is characterized in that: described safety switching mechanism comprises first safety switch and second safety switch that is arranged in the described main part, be connected first on the described hopper and trigger assembly, and be connected second on the described end cap and trigger assembly, described first, be connected in series mutually between the power main switch three of second safety switch and described chipper and have separately and disconnect and the two states of closure, when described hopper was mounted to described main part, the described first triggering assembly triggers described first safety switch made described first safety switch be in closure state; When described hopper was not mounted to described main part, described first triggering assembly and described first safety switch were separated from each other and make described first safety switch be in the state of disconnection; When described end cap was mounted on the tool rest that is positioned at main part, the described second triggering assembly triggers described second safety switch made described second safety switch be in closure state; When described end cap was not mounted on the tool rest that is positioned at main part, described second triggering assembly and described second safety switch were separated from each other and make described second safety switch be in the state of disconnection.
2. the safety switching mechanism of chipper as claimed in claim 1, it is characterized in that: described first triggers assembly comprises first push rod that is arranged on the described hopper, when described hopper was mounted to the below of described main part, described first push rod and described first safety switch were matched.
3. the safety switching mechanism of chipper as claimed in claim 1, it is characterized in that: described second triggers assembly comprises second push rod that is provided with in the described tool rest and the bolt that described end cap can be connected on the described tool rest, when described bolt is connected to described end cap on the described tool rest, described bolt can promote described second push rod, makes that described second push rod and described second safety switch are matched.
4. the safety switching mechanism of chipper as claimed in claim 3, it is characterized in that: described second triggers assembly also comprises lining, described lining is housed in the described tool rest, and described second push rod partly is housed in the described lining, and described bolt can promote described lining.
5. the safety switching mechanism of chipper as claimed in claim 4, it is characterized in that: be provided with flexible member in the described lining, described flexible member is connected between the bottom surface and described second push rod of described lining.
6. the safety switching mechanism of chipper as claimed in claim 1, it is characterized in that: described first safety switch and described second safety switch are fixedly set in the same switch enclosure, and described switch enclosure is fixed in the described main part.
7. the safety switching mechanism of chipper as claimed in claim 6 is characterized in that: described switch enclosure is outward extended with first hollow posts and second hollow posts with the contact of accommodating described first safety switch respectively and the contact of second safety switch.
8. the safety switching mechanism of chipper as claimed in claim 7, it is characterized in that: the bottom of described main part is provided with through hole to accommodate described first hollow posts.
9. the safety switching mechanism of chipper as claimed in claim 7 is characterized in that: described tool rest is provided with accepting hole to accommodate described second contact of triggering assembly and described second safety switch.
10. as the safety switching mechanism of any one described chipper in the claim 1 to 9, it is characterized in that: described first safety switch and described second safety switch are microswitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202554571U CN201534104U (en) | 2009-11-17 | 2009-11-17 | Safety switch mechanism of twig crusher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202554571U CN201534104U (en) | 2009-11-17 | 2009-11-17 | Safety switch mechanism of twig crusher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201534104U true CN201534104U (en) | 2010-07-28 |
Family
ID=42533890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202554571U Expired - Fee Related CN201534104U (en) | 2009-11-17 | 2009-11-17 | Safety switch mechanism of twig crusher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201534104U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101716544B (en) * | 2009-11-17 | 2013-04-03 | 天佑电器（苏州）有限公司 | Safety switching mechanism of shredder |
| CN112317116A (en) * | 2020-11-12 | 2021-02-05 | 宁波爱乐吉电动工具股份有限公司 | Protection switch mechanism and branch crusher with same |
-
2009
- 2009-11-17 CN CN2009202554571U patent/CN201534104U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101716544B (en) * | 2009-11-17 | 2013-04-03 | 天佑电器（苏州）有限公司 | Safety switching mechanism of shredder |
| CN112317116A (en) * | 2020-11-12 | 2021-02-05 | 宁波爱乐吉电动工具股份有限公司 | Protection switch mechanism and branch crusher with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100728 Termination date: 20131117 |