CN103629271B - A kind of mechanical brake structure - Google Patents
A kind of mechanical brake structure Download PDFInfo
- Publication number
- CN103629271B CN103629271B CN201210297515.3A CN201210297515A CN103629271B CN 103629271 B CN103629271 B CN 103629271B CN 201210297515 A CN201210297515 A CN 201210297515A CN 103629271 B CN103629271 B CN 103629271B
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- brake
- linkage
- base
- brake linkage
- extension spring
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Abstract
A kind of mechanical brake structure, comprises base and is arranged on the brake assemblies on base, it is characterized in that described brake assemblies comprises: the brake disc of a circle, be connected with the rotor of motor; One with the brake linkage of brake block, the spacing outside being located at brake disc rotationally, the lower end of brake linkage is arranged on base rotationally, the outside of upper end is connected with traction cable, inner side is connected with an extension spring, this extension spring makes it have inwardly rotates all the time, makes the trend that brake block and brake disc are close to; One sensitive switch, is located at the outside of brake linkage, and when pulling traction cable, when brake linkage outwards rotates, the brake block inside brake linkage is separated with brake disc, and the outer wall of brake linkage and sensitive switch inconsistent, power connection machine operation.Structure of the present invention is simple, clear principle, brake function are reliable, meets the requirement of European Union's brake in 2 seconds, can be widely used in electric hoe class garden instrument.
Description
Technical field
The invention belongs to technical field of garden, specifically a kind of mechanical brake structure, be applicable to electric hoe class garden instrument.
Background technique
Along with growth in the living standard, the greening level requirement that people live to life is more and more higher, large-scale ecological greenery patches, city, house greenery patches, Road Green Space etc. constantly increase, therefore various garden instrument is also constantly released, and the defect that the mechanical brake mechanism of existing garden instrument exists is: brake failure; Switch trigger operating cost power; Volume is larger.The existing patent No. is the Chinese patent " a kind of mechanical brake structure of pruning scissors " of CN201210002790.8, comprise a brake lever, described brake lever lower end and braking device link, described brake lever bottom is provided with brake lever Returnning spring, described brake lever upper end is provided with brake cap, be provided with one outside described brake lever to help pull a cart, described upper in-plane of helping pull a cart is provided with an outstanding salient point apical grafting brake cap lower plane, the sensitive switch that one makes pruning shears circuit turn-on is provided with above described brake cap, described left side of helping pull a cart connects a drawing cable mechanism, described drawing cable mechanism is controlled by the switch trigger be located on pruning shears back handle, described below connection of rotating bracket institution of helping pull a cart, swinging mounting mechanism is controlled by the front handlebar be located in front hand grip.This relatively simple for structure, brake reliable and stable, but it can only be applicable on pruning shears, can not be used for the garden instrument that electric hoe etc. is larger.European Union added the requirement of brake in 2 seconds in 2010 to electric hoe class garden instrument, and client is after cut-off switch, the blade rotated need stop the rotation in 2 seconds, avoid rotating the unexpected injury caused for a long time, therefore need to develop a kind of new mechanical brake structure, carry out the requirement of brake in 2 seconds of satisfied electric hoe class garden instrument.
Summary of the invention
Technical problem to be solved by this invention is to provide the mechanical brake structure of a kind of gardens electric tool, has that structure is simple, reliable feature of braking, and meets the requirement of European Union's brake in 2 seconds.
The present invention solves the problems of the technologies described above adopted technological scheme: a kind of mechanical brake structure, comprises base and is arranged on the brake assemblies on base, it is characterized in that described brake assemblies comprises:
One brake disc, is connected with the rotor of motor;
One with the brake linkage of brake block, the spacing outside being located at brake disc rotationally, the lower end of brake linkage is arranged on base rotationally, the outside of upper end is connected with traction cable, inner side is connected with an extension spring, this extension spring makes it have inwardly rotates all the time, makes the trend that brake block and brake disc are close to;
One sensitive switch, is located at the outside of brake linkage and coordinates with brake linkage, when pulling traction cable, when brake linkage outwards rotates, brake block inside brake linkage is separated with brake disc, and the outer wall of brake linkage and sensitive switch inconsistent, make power connection machine operation.
As improvement, the right side central of described base forms the circular groove can inserted for brake disc, an attachment post is provided with below the left outer of circular groove, upper left side is provided with a limited post, the lower end of described brake linkage is provided with the attachment hole coordinated with described attachment post, upper end is provided with the kink matched with limited post, and two through holes in left and right are had in the upper end of kink, wherein right through hole is connected with extension spring, the brake block inside it is made to be close to trend mutually with brake disc by the effect of extension spring, left through hole is connected with traction cable, the lower end of described brake linkage is nested with rotationally on attachment post.
As improvement, on described base, the left side of brake linkage is provided with a switch groove can inserted for sensitive switch, described sensitive switch is located in switch groove, and be fixed on base by the switch cover of top, be provided with outwardly touch switch on the right side of sensitive switch, the upper left quarter of described base is provided with the spacing inclined-plane coordinated when rotating with brake linkage, and described brake linkage is under the effect of traction cable and extension spring, with described attachment post for running shaft, rotate between spacing inclined-plane and limited post.
Improve again, described traction cable is made up of drag-line and Cable head, Cable head is provided with the draw-in groove that can snap in for the end pipe box of drag-line, described Cable head is through the left through hole of brake linkage, connected and fixed by a jump ring at the other end, one end of described drag-line snaps in Cable head, and the other end passes base and is connected with handle.
Further improvement, described base is provided with the notch can derived for drag-line, and described drag-line is also fixed by a cable pressing plate up through notch.
Finally, the upper right quarter of described base is provided with a bayonet socket, and one end of described extension spring snaps in the right through hole of described brake linkage upper end, and the other end snaps in this bayonet socket fixing.
Compared with prior art, the invention has the advantages that: realize brake or sensitive switch unlatching by the rotation of brake linkage, and be provided with extension spring on brake linkage, the Rapid reset of brake linkage can be realized, so operation is very rapidly quick, as long as one-off just can realize.The present invention's practicality simple and reasonable for structure, clear principle, brake function are reliable, meet the requirement of European Union's brake in 2 seconds, can be widely used in electric hoe class garden instrument.
figure of description
Fig. 1 is the structural representation of the present invention when sensitive switch is opened;
Fig. 2 is the structural representation of the present invention under braking state;
Fig. 3 is the STRUCTURE DECOMPOSITION schematic diagram of figure of the present invention;
Fig. 4 ~ 8 are fundamental diagrams of the present invention.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
As shown in the figure, a kind of mechanical brake structure, the brake assemblies comprising base 1 and be arranged on base 1, brake assemblies comprises the critical pieces such as brake disc 2, brake linkage 3, extension spring 4, traction cable and sensitive switch 8, brake disc 2 is circular, be arranged in the circular groove 1.1 of base 1 right side central, be connected with the rotor of motor, the inner side of brake linkage 3 is provided with brake block 3.1, an attachment post 1.2 is provided with below the left outer of circular groove 1.1, upper left side is provided with a limited post 1.3, the lower end of brake linkage 3 is provided with the attachment hole 3.2 coordinated with attachment post 1.2, upper end is provided with the kink matched with limited post 1.3, and two through holes 3.4 and 3.3 in left and right are had in the upper end of kink, wherein right through hole 3.3 is connected with extension spring 4, left through hole 3.4 is connected with traction cable 5, the lower end of brake linkage 3 is nested with on attachment post 1.2 by attachment hole 3.2 rotationally, brake block 3.1 inside it and brake disc 2 phase snug fit trend is made by the effect of extension spring 4, the upper right quarter of base 1 is provided with a bayonet socket 1.4, one end of extension spring 4 snaps in the right through hole 3.3 of brake linkage 3 upper end, the other end to snap in this bayonet socket 1.4 fixing, and this extension spring 4 makes brake linkage 3 have inwardly to rotate all the time, make the trend that brake block 3.1 and brake disc 2 are close to, traction cable is made up of Cable head 6 and drag-line 5, Cable head 6 is provided with the draw-in groove 6.1 that can snap in for the end pipe box of drag-line 5, Cable head 6 is through the left through hole 3.4 of brake linkage 3, be fixed on after the other end is by jump ring 7 clamping in left through hole 3.4, base 1 is provided with the notch 1.6 can derived for drag-line 5, drag-line 5 is also fixed by a cable pressing plate 9 up through notch 1.6, one end of such drag-line 5 snaps in Cable head 6 and is connected with brake linkage 3, the other end passes base 1 and is connected with dead-man's handle 13, when pulling drag-line 5 by dead-man's handle 13, when brake linkage 3 is outwards rotated, brake block 3.1 inside brake linkage 3 is separated with brake disc 2, and the outer wall of brake linkage 3 will be inconsistent with sensitive switch 8, power connection machine operation,
On base 1, the left side of brake linkage 3 is provided with a switch groove 1.5 can inserted for sensitive switch 8, sensitive switch 8 is located in switch groove 1.5, be positioned at the outside of brake linkage 3, and be fixed on base 1 by the switch cover 10 of top, switch cover 10 offers three through holes 10.1, base 1 is provided with corresponding tapped hole 1.7, by three tapping screws 11 through through hole 10.1, be screwed in tapped hole 1.7 and switch cover 10 is connected and fixed, the penetration hole 10.2 that can pass for the attachment post 1.2 on base 1 is also provided with in the corner of switch cover 10, the lower end of such brake linkage 3 is nested with after on attachment post 1.2, can be pushed down by the switch cover 10 of top, make brake linkage 3 more stable when rotating, can not slippage, outwardly touch switch 8.1 is provided with on the right side of sensitive switch 8, the upper left quarter of base 1 is provided with the spacing inclined-plane 1.8 coordinated when rotating with brake linkage 3, brake linkage 3 is under the effect of traction cable 5 and extension spring 4, with attachment post 1.2 for running shaft, rotate between spacing inclined-plane 1.8 and limited post 1.3.
During installation, if Fig. 4 is first by the left through hole 3.4 of Cable head 6 through brake linkage 3, then jump ring 7 is stuck in the draw-in groove of Cable head 6, then one end of extension spring 4 is snapped in the right through hole 3.3 of brake linkage 3; As Fig. 5, the attachment post 1.2 that the attachment hole 3.2 of brake linkage 3 aims at base 1 is put into, the other end of extension spring 7 is snapped in the bayonet socket 1.4 of base 1 fixing; As Fig. 6, the sensitive switch 8 being connected to inductance and elastic cable paper 12 is put into the position of the switch groove 1.5 of base 1; As Fig. 7, good for the line cloth of sensitive switch 8, then switch cover 10 is covered, stamp tapping screw 11 and lock; As Fig. 8, the end pipe box of drag-line 5 is snapped in the draw-in groove 6.1 of Cable head 6, then press the position wiring of base 1, the pipe box cap of traction cable 5 is pushed down with cable pressing plate 9, then with tapping screw locking, finally load onto the motor of brake disc 2, the assembling of whole like this mechanical brake mechanism just completes.
Working principle is such: drive drag-line 5 displacement by dead-man's handle 13, drag-line drives brake linkage 3 to rotate along axis K-K alignment outward, now brake block 3.1 leaves brake disc 2, remove skidding, brake linkage 3 offsets with the trigger switch 8.1 of sensitive switch 8 simultaneously, electric motor starting drives workpiece to rotate, as Fig. 1; When unclamping dead-man's handle 13, brake linkage 3 turns right reset under the effect of extension spring 4, and the brake block 3.1 on brake linkage 3 againsts brake disc 2 tightly, play damping function, motor speed is declined rapidly, is cut off the electricity supply by sensitive switch 8 simultaneously, and stopped in 2 seconds.
Claims (5)
1. a mechanical brake structure, comprises base and is arranged on the brake assemblies on base, it is characterized in that described brake assemblies comprises:
One brake disc, is connected with the rotor of motor;
One with the brake linkage of brake block, the spacing outside being located at brake disc rotationally, the lower end of brake linkage is arranged on base rotationally, the outside of upper end is connected with traction cable, inner side is connected with an extension spring, this extension spring makes brake linkage inwardly rotate, and makes brake block and brake disc keep the trend be close to;
One sensitive switch, is located at the outside of brake linkage and coordinates with brake linkage, when pulling traction cable, when brake linkage outwards rotates, brake block inside brake linkage is separated with brake disc, and the outer wall of brake linkage and sensitive switch inconsistent, make power connection machine operation;
Described traction cable is made up of drag-line and Cable head, Cable head is provided with the draw-in groove supplying the end pipe box of drag-line to snap in, described Cable head is through the left through hole of brake linkage, connected and fixed by a jump ring in below, one end of described drag-line snaps in Cable head, and the other end passes base and is connected with dead-man's handle.
2. mechanical brake structure according to claim 1, it is characterized in that the right side central of described base forms the circular groove can inserted for brake disc, an attachment post is provided with below the left outer of circular groove, upper left side is provided with a limited post, the lower end of described brake linkage is provided with the attachment hole coordinated with described attachment post, upper end is provided with the kink matched with limited post, and two through holes in left and right are had in the upper end of kink, wherein right through hole is connected with extension spring, by the effect of extension spring, the brake block inside brake linkage is close to mutually with brake disc, left through hole is connected with traction cable, the lower end of described brake linkage is nested with rotationally on attachment post.
3. mechanical brake structure according to claim 2, it is characterized in that on described base, the left side of brake linkage is provided with a switch groove can inserted for sensitive switch, described sensitive switch is located in switch groove, and be fixed on base by the switch cover of top, outwardly touch switch is provided with on the right side of sensitive switch, the upper left quarter of described base is provided with the spacing inclined-plane coordinated when rotating with brake linkage, described brake linkage is under the effect of traction cable and extension spring, with described attachment post for running shaft, rotate between spacing inclined-plane and limited post.
4. mechanical brake structure according to claim 1, it is characterized in that described base is provided with the notch can derived for drag-line, described drag-line is also fixed by a cable pressing plate up through notch.
5. mechanical brake structure according to claim 2, is characterized in that the upper right quarter of described base is provided with a bayonet socket, and one end of described extension spring snaps in the right through hole of described brake linkage upper end, and the other end snaps in this bayonet socket fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210297515.3A CN103629271B (en) | 2012-08-21 | 2012-08-21 | A kind of mechanical brake structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210297515.3A CN103629271B (en) | 2012-08-21 | 2012-08-21 | A kind of mechanical brake structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103629271A CN103629271A (en) | 2014-03-12 |
| CN103629271B true CN103629271B (en) | 2016-03-02 |
Family
ID=50210629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210297515.3A Expired - Fee Related CN103629271B (en) | 2012-08-21 | 2012-08-21 | A kind of mechanical brake structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103629271B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107470962A (en) * | 2017-08-29 | 2017-12-15 | 宁波动电器有限公司 | The brake structure and chain saw of a kind of chain saw |
| CN107806482B (en) * | 2017-11-20 | 2024-04-02 | 清华大学苏州汽车研究院（相城） | Stretching type sheet brake system capable of eliminating mechanical hysteresis |
| CN112938662B (en) * | 2021-03-31 | 2023-01-13 | 山东英特力光通信开发有限公司 | Portable electric retractable table for special optical cable |
| WO2023197732A1 (en) * | 2022-04-15 | 2023-10-19 | 浙江白马科技有限公司 | Garden tool |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4419857A (en) * | 1981-08-07 | 1983-12-13 | Outboard Marine Corporation | Lawn mower with combined engine brake and ignition control |
| US4979596A (en) * | 1989-06-27 | 1990-12-25 | Tecumseh Products Company | Safety brake system for an engine |
| US5086890A (en) * | 1990-03-14 | 1992-02-11 | Briggs & Stratton Corporation | Engine braking system |
| JPH08105465A (en) * | 1994-10-04 | 1996-04-23 | Kubota Corp | Flywheel brake for vertical shaft engine |
| GB2333335B (en) * | 1998-01-20 | 2002-05-15 | Lansing Linde Ltd | Band brake assembly for a vehicle |
| CN2827677Y (en) * | 2005-06-27 | 2006-10-18 | 孔钊 | Brake device on chain saw |
| CN201801736U (en) * | 2010-09-19 | 2011-04-20 | 林海潮 | Motor brake assembly of industrial sewing machine |
| CN102550307A (en) * | 2012-01-06 | 2012-07-11 | 浙江亚特电器有限公司 | Mechanical brake structure of pruning scissors |
| CN202746459U (en) * | 2012-08-21 | 2013-02-20 | 宁波奇亚园林工具有限公司 | Mechanical brake structure |
-
2012
- 2012-08-21 CN CN201210297515.3A patent/CN103629271B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4419857A (en) * | 1981-08-07 | 1983-12-13 | Outboard Marine Corporation | Lawn mower with combined engine brake and ignition control |
| US4979596A (en) * | 1989-06-27 | 1990-12-25 | Tecumseh Products Company | Safety brake system for an engine |
| US5086890A (en) * | 1990-03-14 | 1992-02-11 | Briggs & Stratton Corporation | Engine braking system |
| JPH08105465A (en) * | 1994-10-04 | 1996-04-23 | Kubota Corp | Flywheel brake for vertical shaft engine |
| GB2333335B (en) * | 1998-01-20 | 2002-05-15 | Lansing Linde Ltd | Band brake assembly for a vehicle |
| CN2827677Y (en) * | 2005-06-27 | 2006-10-18 | 孔钊 | Brake device on chain saw |
| CN201801736U (en) * | 2010-09-19 | 2011-04-20 | 林海潮 | Motor brake assembly of industrial sewing machine |
| CN102550307A (en) * | 2012-01-06 | 2012-07-11 | 浙江亚特电器有限公司 | Mechanical brake structure of pruning scissors |
| CN202746459U (en) * | 2012-08-21 | 2013-02-20 | 宁波奇亚园林工具有限公司 | Mechanical brake structure |
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|---|---|
| CN103629271A (en) | 2014-03-12 |
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Granted publication date: 20160302 Termination date: 20170821 |