CN201409330Y - Pruning machine - Google Patents
Pruning machine Download PDFInfo
- Publication number
- CN201409330Y CN201409330Y CN2009201218361U CN200920121836U CN201409330Y CN 201409330 Y CN201409330 Y CN 201409330Y CN 2009201218361 U CN2009201218361 U CN 2009201218361U CN 200920121836 U CN200920121836 U CN 200920121836U CN 201409330 Y CN201409330 Y CN 201409330Y
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- China
- Prior art keywords
- brake
- seesaw
- drag hook
- casing
- brake cable
- Prior art date
- 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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Abstract
The utility model discloses a pruning machine, which comprises a casing, a motor, a motor micro-switch, a gear assembly, a transmission shaft, an eccentric disk, a front handle and a rear handle. A swinging arm is arranged inside the rear handle, a hinged end of the swinging arm is hinged with the casing, a free end of the swinging arm is connected to one end of a raising board via a back brake cable, a front snap fastener disposed inside the front handle is connected to the other end of the raising board via a sliding bar and a pulling hook, a brake bar penetrates in the center of the raisingboard, the brake bar can touch the motor micro-switch when moving upwards, a support is fixed onto the casing, and the brake cable, the brake bar and the pulling hook pass through the support abreast. When in brake, the pruning machine can adopt a mechanical structural mode to achieve fast brake, the brake bar penetrating in the raising board can drop off when the front handle or the rear handleis released, and disconnection of the brake bar and the motor micro-switch can be realized to enable the motor to stop rotating, thereby avoiding problems of carbon brush abrasion and large sparks ofa converter when an electric brake structure is employed and prolonging the service life of the motor.
Description
Technical field
The utility model relates to a kind of pruner, especially the brake gear of pruner.
Background technology
Pruner in the market is mainly based on the electric brake structure, employing increases electronic loop in switch, be used for commutator by a reverse potential masterpiece during brake, force the direction of rotation of motor is converted to rightabout in moment, to play braking action.Because commutator contacts with carbon brush when work, commutator is very serious to the wearing and tearing of carbon brush when positive and reverse steering is worked, and the spark that commutator produces when braking simultaneously is very big, thereby has a strong impact on the service life of motor.
The utility model content
Technical problem to be solved in the utility model provides a kind of pruner, and the carbon brush that its brake gear can be avoided being caused when adopting the electric brake structure weares and teares and the big problem of commutator spark, prolongs the service life of motor.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: pruner, comprise casing, motor, the motor microswitch, gear assembly, power transmission shaft, eccentric disc, front hand grip and back handle, also comprise support, seesaw, brake cable, brake lever, sliding bar, drag hook, be provided with swing arm in the described back handle, described swing arm hinged end and casing are hinged, described swing arm free end is connected with the casing bottom by the swing arm extension spring, and described swing arm free end connects an end of seesaw by the back brake cable, be provided with preceding snapper in the described front hand grip, snapper passes through sliding bar successively before described, drag hook connects the other end of seesaw, snapper is provided with front hand grip compression spring in its side opposite with the link position of described sliding bar before described, described brake lever is arranged in described seesaw central authorities, described brake lever moves upward and can touch described motor microswitch, described support is fixed on the casing, described brake cable, brake lever, drag hook passes described support side by side, described brake cable, brake lever and the drag hook position between described support and described seesaw is arranged with return spring respectively.
Described swing arm free end connects brake cable by wire pulling rack, described wire pulling rack comprises into hinged end, sliding end and the line end of angular distribution, described hinged end and described casing are hinged, described line end is connected with described brake cable, described swing arm free end is provided with an elongated hole, described sliding end is fixed with alignment pin, and this alignment pin is through in this elongated hole.
Be connected with transmission mechanism between described sliding bar, the drag hook, this transmission mechanism comprises connecting rod I, connecting rod II, described connecting rod I is provided with elongated hole, sliding bar one end is fixed with alignment pin, this alignment pin is through in this elongated hole, the end of described connecting rod I is articulated on the casing by link pin, and the other end and connecting rod II, drag hook head and the tail successively are hinged, are arranged with the connecting rod torsion spring on the described link pin.
The end that described brake cable is connected with described seesaw is provided with a tieing, described seesaw has U-lag in the end that is connected with described brake cable, described tieing placed under the described seesaw after described brake cable was passed this U-lag, so that this version is simple, easy for installation.
Described seesaw with end that described brake cable is connected under curved, stably place under the described seesaw to guarantee described tieing.
Described drag hook comprises body and coupler body, and described seesaw has U-lag in the end that is connected with described drag hook, and described coupler body placed under the described seesaw after described drag hook body passed this U-lag, so that this version is simple, easy for installation.
Described seesaw with end that described drag hook is connected under curved, stably place under the described seesaw to guarantee described coupler body.
Be provided with projection in the middle of the described seesaw, described seesaw can drive brake lever and moves upward when guaranteeing to mention front hand grip and back handle simultaneously.
Described gear assembly comprises brake block, gear, torsion spring, described brake block, gear and eccentric disc are set on the described power transmission shaft successively, the endoporus interference fit of the external diameter of described torsion spring and described gear, the elbow of described torsion spring upper end is connected with described brake block, the afterbody of described torsion spring lower end embeds in the involute groove of described eccentric disc, described brake block top is a disk, and this disk border is along circumferentially being interval with ear and slot part, and its lower end can fall in this slot part when described brake lever fell.
The utility model is owing to adopted technique scheme, when brake, adopt the mode of frame for movement to brake fast, after unclamping front hand grip or back handle, can make the brake lever that is arranged on this seesaw fall, realize the disengaging of brake lever and motor microswitch and make the motor stall, thereby the carbon brush of avoiding being caused when adopting the electric brake structure weares and teares and the big problem of commutator spark, has prolonged the service life of motor.
Description of drawings
Fig. 1 is the structural representation of an embodiment of the utility model pruner.
Fig. 2 is the structural representation of this embodiment medium-height trestle, seesaw, brake cable, brake lever and drag hook coupling part.
Fig. 3 is the structural representation of seesaw among this embodiment.
Fig. 4 is the structural representation of this embodiment middle gear assembly.
Fig. 5 is the structural representation of brake block among this embodiment.
Fig. 6 is the view of swing arm when mentioning back handle among this embodiment, wire pulling rack.
Fig. 7 is the view of swing arm when unclamping back handle among this embodiment, wire pulling rack.
Fig. 8 is the view of sliding bar when mentioning front hand grip among this embodiment, transmission mechanism, drag hook, brake lever.
Fig. 9 is the view of sliding bar when unclamping front hand grip among this embodiment, transmission mechanism, drag hook, brake lever.
The view of Figure 10 seesaw, brake cable, brake lever and drag hook when not mentioning front hand grip and back handle initial among this embodiment simultaneously.
The view of Figure 11 seesaw, brake cable, brake lever and drag hook when only mentioning back handle or only unclamping front hand grip among this embodiment.
The view of Figure 12 seesaw, brake cable, brake lever and drag hook when only mentioning front hand grip or only unclamping back handle among this embodiment.
Figure 13 is the view of seesaw when mentioning front hand grip and back handle simultaneously among this embodiment, brake cable, brake lever and drag hook.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is further described.
Figure 1 shows that an embodiment of the utility model pruner, comprise casing 1, motor 2, motor microswitch 21, gear assembly, power transmission shaft 5, eccentric disc 4, front hand grip 7 and back handle 8, also comprise support 11, seesaw 6, brake cable 81, brake lever 9, sliding bar 73, drag hook 71, be provided with swing arm 82 in the described back handle 8, described swing arm 82 hinged ends 822 are hinged with casing 1, described swing arm 82 free ends 823 are connected with described casing 1 bottom by swing arm extension spring 821, and described swing arm 82 free ends 823 connect an end of described seesaw 6 by back brake cable 81, snapper 72 before being provided with in the described front hand grip 7, snapper 72 is successively by sliding bar 73 before described, drag hook 71 connects the other end of described seesaw 6, snapper 72 is provided with front hand grip compression spring 721 in its side opposite with the link position of described sliding bar 73 before described, described brake lever 9 is arranged in described seesaw 6 central authorities, described brake lever 9 moves upward and can touch described motor microswitch 21, as shown in Figure 2, described support 11 is fixed on the casing 1, described brake cable 81, brake lever 9, drag hook 71 passes described support 11 side by side, described brake cable 81, brake lever 9 and drag hook 71 position between described support 11 and described seesaw 6 is arranged with return spring 111 respectively.
Described swing arm 82 free ends 823 connect brake cable 81 by wire pulling rack 83, described wire pulling rack 83 comprises into hinged end 831, sliding end 832 and the line end 833 of angular distribution, described hinged end 831 and described casing 1 are hinged, described line end 833 is connected with described brake cable 81, described swing arm 82 free ends 823 are provided with an elongated hole 8231, described sliding end 832 is fixed with alignment pin, and this alignment pin is through in this elongated hole 8231.The state of swing arm when mentioning back handle and unclamping back handle, wire pulling rack respectively as shown in Figure 6 and Figure 7.
Be connected with transmission mechanism between described sliding bar 73, the drag hook 71, this transmission mechanism comprises connecting rod I741, connecting rod II 742, described connecting rod I741 is provided with elongated hole 7411, described sliding bar 73 1 ends are fixed with alignment pin, this alignment pin is through in this elongated hole 7411, the end of described connecting rod I741 is articulated on the casing 1 by link pin 743, and the other end and described connecting rod II 742, drag hook 71 head and the tail successively are hinged, are arranged with connecting rod torsion spring 744 on the described link pin 743.The state of sliding bar, transmission mechanism, drag hook, brake lever is respectively as Fig. 8 and shown in Figure 9 when mentioning front hand grip and unclamping front hand grip.
As shown in Figure 3, the end that described brake cable 81 is connected with described seesaw 6 is provided with a tieing 811, described seesaw 6 has U-lag 61 in the end that is connected with described brake cable 81, and described brake cable 81 is passed this described tieing 811 in U-lag 61 backs and placed under the described seesaw 6.
Described drag hook 71 comprises body 712 and coupler body 711, and described seesaw 6 has U-lag 62 in the end that is connected with described drag hook 71, and described drag hook 71 bodies 712 pass this described coupler body 711 in U-lag 62 backs and place under the described seesaw 6.
The two ends of described seesaw 6, just described seesaw 6 are bent down with the end that described brake cable 81 is connected with described drag hook 71 respectively or are prolonged, and can stably remain under the described seesaw 6 to guarantee described tieing 811 or described coupler body 711.
Be provided with projection 63 in the middle of the described seesaw 6.
As shown in Figure 4, described gear assembly comprises brake block 31, gear 32, torsion spring 33, described brake block 31, gear 32 is set on the described power transmission shaft 5 successively with eccentric disc 4, the endoporus interference fit of the external diameter of described torsion spring 33 and described gear 32, the elbow of described torsion spring 33 upper ends is connected with described brake block 31, the afterbody of described torsion spring 33 lower ends embeds in the involute groove of described eccentric disc 4, as shown in Figure 5, described brake block 31 tops are a disk 310, these disk 310 edges are along circumferentially being interval with ear 311 and slot part 312, and its lower end can fall in this slot part 312 when described brake lever 9 fell.
As shown in figure 10, when initial, front hand grip 7 and back handle 8 are releasing orientation, and the two ends of described seesaw 6 are not perk all, and the upper end of brake lever 9 does not contact with motor microswitch 21, and motor 2 is not worked, and this pruner is in stopped status.
As shown in figure 11, when only mentioning back handle 8 or only unclamping front hand grip 7, swing arm 82 has spurred wire pulling rack 83, and the brake cable 81 on the wire pulling rack 83 is moved to the left, and an end that has driven the seesaw 6 that is connected with described brake cable 81 is upturned.At this moment, described seesaw 6 can not drive brake lever 9 and up carry, and the upper end of brake lever 9 does not contact with motor microswitch 21, and motor 2 is not worked, and this pruner is in stopped status.
As shown in figure 12, when only mentioning front hand grip 7 or only unclamping back handle 8, preceding snapper 72 drives sliding bars 73 and moves right, because the end of connecting rod I741 is articulated on the casing 1 by link pin 743, so the other end of connecting rod I741 is turned right, connecting rod I drivening rod II drives drag hook 71 again and moves upward, thereby an end of the seesaw 6 that is connected with described drag hook 71 is upturned.At this moment, described seesaw 6 can not drive brake lever 9 and up carry, and the upper end of brake lever 9 does not contact with motor microswitch 21, and motor 2 is not worked, and this pruner is in stopped status.
As shown in figure 13, when mentioning front hand grip 7 and back handle 8 simultaneously, whole seesaw 6 is up mentioned, driving brake lever 9 up carries, motor microswitch 21 has just been pressed after rising in the upper end of brake lever 9, make motor 2 be in "on" position and turn round, the slot part 312 of brake block 31 has also been left in the lower end of brake lever 9 simultaneously, makes gear 32 be in free operating condition.Motor 2 rotary works, there is screw thread to cooperate on the motor shaft with the gear 32 of gear assembly, 32 rotations of motor shaft rotating band moving gear, the endoporus interference fit of the external diameter of described torsion spring 33 and described gear 32, the result is also rotation thereupon of torsion spring 33, has driven eccentric disc 4 rotations, on the eccentric disc 4 blade holder is housed, the rotation of last eccentric disc 4 has driven the reciprocating motion of blade, this pruner operate as normal.
No matter be after front hand grip 7 or back handle 8 unclamp, an end of seesaw 6 is fallen after rise under the effect of return spring 111, brake lever 9 also can move down, thereby brake lever 9 and motor microswitch 21 are broken away from, and motor 2 is shut down.Simultaneously, insert in the slot part 312 of brake block 31 lower end of brake lever 9, brake lever 9 glides and falls in the described slot part 312, block the ear 311 of brake block 31, brake block 31 can not be rotated, the elbow of torsion spring 33 was also held after brake block 31 stopped the rotation, torsion spring 33 outer rings tighten the back and unclamp with gear 32, gear 32 is in idling conditions, and eccentric disc 4 also stopped the rotation thereupon after torsion spring 33 stopped the rotation, and has promptly finished the whole process of brake.
Claims (9)
1. pruner, comprise casing (1), motor (2), motor microswitch (21), gear assembly, power transmission shaft (5), eccentric disc (4), front hand grip (7) and back handle (8), it is characterized in that: also comprise support (11), seesaw (6), brake cable (81), brake lever (9), sliding bar (73), drag hook (71), be provided with swing arm (82) in the described back handle (8), described swing arm (82) hinged end (822) is hinged with casing (1), described swing arm (82) free end (823) is connected with described casing (1) bottom by swing arm extension spring (821), and described swing arm (82) free end (823) connects an end of described seesaw (6) by back brake cable (81), be provided with preceding snapper (72) in the described front hand grip (7), snapper (72) is successively by sliding bar (73) before described, drag hook (71) connects the other end of described seesaw (6), the rightabout that snapper before described (72) is connected with described sliding bar (73) is provided with front hand grip compression spring (721), described brake lever (9) is arranged in described seesaw (6) central authorities, described brake lever (9) moves upward and can touch described motor microswitch (21), described support (11) is fixed on the casing (1), described brake cable (81), brake lever (9), drag hook (71) passes described support (11) side by side, described brake cable (81), brake lever (9) and drag hook (71) position between described support (11) and described seesaw (6) is arranged with return spring (111) respectively.
2. according to the described pruner of claim 1, it is characterized in that: described swing arm (82) free end (823) connects brake cable (81) by wire pulling rack (83), described wire pulling rack (83) comprises into the hinged end (831) of angular distribution, sliding end (832) and line end (833), described hinged end (831) is hinged with described casing (1), described line end (833) is connected with described brake cable (81), described swing arm (82) free end (823) is provided with an elongated hole (8231), described sliding end (832) is fixed with alignment pin, and this alignment pin is through in this elongated hole (8231).
3. according to the described pruner of claim 1, it is characterized in that: described sliding bar (73), drag hook is connected with transmission mechanism between (71), this transmission mechanism comprises connecting rod I (741), connecting rod II (742), described connecting rod I (741) is provided with elongated hole (7411), described sliding bar (73) one ends are fixed with alignment pin, this alignment pin is through in this elongated hole (7411), the end of described connecting rod I (741) is articulated on the casing (1) by link pin (743), the other end and described connecting rod II (742), drag hook (71) head and the tail successively is hinged, is arranged with connecting rod torsion spring (744) on the described link pin (743).
4. according to the described pruner of claim 1, it is characterized in that: the end that described brake cable (81) is connected with described seesaw (6) is provided with a tieing (811), described seesaw (6) has U-lag (61) in the end that is connected with described brake cable (81), and described brake cable (81) is passed this U-lag (61) described tieing in back (811) and placed under the described seesaw (6).
5. according to the described pruner of claim 4, it is characterized in that: described seesaw (6) with end that described brake cable (81) is connected under curved.
6. according to the described pruner of claim 1, it is characterized in that: described drag hook (71) comprises body (712) and coupler body (711), described seesaw (6) has U-lag (62) in the end that is connected with described drag hook (71), and described drag hook (71) body (712) passes this U-lag (62) described coupler body in back (711) and places under the described seesaw (6).
7. according to the described pruner of claim 6, it is characterized in that: described seesaw (6) with end that described drag hook (71) is connected under curved.
8. according to claim 1 or 4 or 6 described pruners, it is characterized in that: be provided with projection (63) in the middle of the described seesaw (6).
9. according to the described pruner of claim 1, it is characterized in that: described gear assembly comprises brake block (31), gear (32), torsion spring (33), described brake block (31), gear (32) is set on the described power transmission shaft (5) successively with eccentric disc (4), the endoporus interference fit of the external diameter of described torsion spring (33) and described gear (32), the elbow of described torsion spring (33) upper end is connected with described brake block (31), the afterbody of described torsion spring (33) lower end embeds in the involute groove of described eccentric disc (4), described brake block (31) top is a disk, this disk border is along circumferentially being interval with ear (311) and slot part (312), and its lower end can fall in this slot part (312) when described brake lever (9) fell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201218361U CN201409330Y (en) | 2009-06-03 | 2009-06-03 | Pruning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201218361U CN201409330Y (en) | 2009-06-03 | 2009-06-03 | Pruning machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201409330Y true CN201409330Y (en) | 2010-02-24 |
Family
ID=41711224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201218361U Expired - Fee Related CN201409330Y (en) | 2009-06-03 | 2009-06-03 | Pruning machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201409330Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102379218A (en) * | 2010-09-03 | 2012-03-21 | 泉峰(中国)贸易有限公司 | Pruning 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 |
| WO2014071838A1 (en) * | 2012-11-08 | 2014-05-15 | 苏州宝时得电动工具有限公司 | Pruning shears |
| CN103843597A (en) * | 2012-12-05 | 2014-06-11 | 苏州宝时得电动工具有限公司 | Pruning shears |
| CN104604548A (en) * | 2013-11-05 | 2015-05-13 | 南京德朔实业有限公司 | Electric gardening tool |
-
2009
- 2009-06-03 CN CN2009201218361U patent/CN201409330Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102379218A (en) * | 2010-09-03 | 2012-03-21 | 泉峰(中国)贸易有限公司 | Pruning machine |
| CN102396351A (en) * | 2010-09-03 | 2012-04-04 | 泉峰(中国)贸易有限公司 | Pruner and switch device thereof |
| CN102396351B (en) * | 2010-09-03 | 2013-06-12 | 泉峰(中国)贸易有限公司 | Pruner and switch device thereof |
| CN102550307A (en) * | 2012-01-06 | 2012-07-11 | 浙江亚特电器有限公司 | Mechanical brake structure of pruning scissors |
| CN102550307B (en) * | 2012-01-06 | 2013-12-18 | 浙江亚特电器有限公司 | Mechanical brake structure of pruning scissors |
| WO2014071838A1 (en) * | 2012-11-08 | 2014-05-15 | 苏州宝时得电动工具有限公司 | Pruning shears |
| CN103843597A (en) * | 2012-12-05 | 2014-06-11 | 苏州宝时得电动工具有限公司 | Pruning shears |
| CN103843597B (en) * | 2012-12-05 | 2016-09-14 | 苏州宝时得电动工具有限公司 | Shrub and hedge trimmer |
| CN104604548A (en) * | 2013-11-05 | 2015-05-13 | 南京德朔实业有限公司 | Electric gardening tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Tongda Electrical Appliance Co., Ltd. Assignor: Zhang Qinye Contract record no.: 2012330000150 Denomination of utility model: Electric trimmer Granted publication date: 20100224 License type: Exclusive License Record date: 20120409 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100224 Termination date: 20150603 |
|
| EXPY | Termination of patent right or utility model |