CN114505917B - Electric chain saw with variable-frequency brushless motor - Google Patents
Electric chain saw with variable-frequency brushless motor Download PDFInfo
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- CN114505917B CN114505917B CN202210036611.6A CN202210036611A CN114505917B CN 114505917 B CN114505917 B CN 114505917B CN 202210036611 A CN202210036611 A CN 202210036611A CN 114505917 B CN114505917 B CN 114505917B
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- guide plate
- saw
- chain
- brushless motor
- plate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B17/00—Chain saws; Equipment therefor
- B27B17/02—Chain saws equipped with guide bar
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G23/00—Forestry
- A01G23/02—Transplanting, uprooting, felling or delimbing trees
- A01G23/08—Felling trees
- A01G23/091—Sawing apparatus specially adapted for felling trees
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G3/00—Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
- A01G3/08—Other tools for pruning, branching or delimbing standing trees
- A01G3/085—Motor-driven saws for pruning or branching
- A01G3/086—Chain saws
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B17/00—Chain saws; Equipment therefor
- B27B17/02—Chain saws equipped with guide bar
- B27B17/025—Composite guide bars, e.g. laminated, multisectioned; Guide bars of diverse material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B17/00—Chain saws; Equipment therefor
- B27B17/08—Drives or gearings; Devices for swivelling or tilting the chain saw
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B17/00—Chain saws; Equipment therefor
- B27B17/14—Arrangements for stretching the chain saw
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G19/00—Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws
- B27G19/003—Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws for chain saws
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G3/00—Arrangements for removing bark-zones, chips, waste, or dust, specially designed for use in connection with wood-working machine or in wood-working plants
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Environmental Sciences (AREA)
- Sawing (AREA)
Abstract
The invention relates to an electric chain saw with a variable-frequency brushless motor, belongs to the technical field of electric tools, and provides the electric chain saw with the variable-frequency brushless motor. The saw chain is movably adjusted at the front sides of the first guide plate and the second guide plate through the connection of the tensioning device, so that the connection of the saw chain is tensioned and loosened, the tensioning degree of the saw chain is adjusted, the stability is ensured, and when the tensioning device and the guide plate chain wheel move backwards, the saw chain is separated from the guide plate chain wheel and matched with a brake switch in the device, the saw chain stops rotating, people are prevented from being injured, and the safety of the device is ensured.
Description
Technical Field
The invention relates to an electric chain saw with a variable-frequency brushless motor, and belongs to the technical field of electric tools.
Background
In industries such as forest valve wood, saw wood, decoration and the like, a common tool is an electric chain saw and a gasoline saw, the electric chain saw is a tool frequently used by people in the felling industry, the electric chain saw is developed to be a cutting tool which uses electricity as power and is used for cutting wood, stone, steel and the like, the time and labor consumed by cutting materials are greatly saved, and the saw blades of the electric saw are generally in a circular shape, a strip shape, a chain type and the like.
In the cutting process of the electric chain saw, the surface of some branches, weeds or plant stems has high toughness, is not easy to cut off at one time, and often is wound into the shell along with the chain; when a big tree is cut, bark is easy to be clamped, the bark is easy to be wound on a motor shaft or a chain wheel after long rotation time, or dust generated during felling is easy to accumulate in the machine, the machine is easy to be clamped and cannot work continuously due to the reasons, at the moment, the motor needs to be turned off, sundries are taken out through manual pulling, much time and energy are consumed, meanwhile, due to the fact that a saw chain is directly contacted with a guide plate and the chain wheel, extremely large heat is generated between the saw chain and the guide plate and the chain wheel in the high-speed rotation process, the friction force between the saw chain and the guide plate and the chain wheel is increased due to the large heat, when a hard object such as a tree knot or a metal object is cut in the actual operation process, the electric chain saw can jump up towards the body of an operator, the phenomenon is commonly called rebound, certain danger is formed, if the rebound situation occurs, the electric chain saw needs to be braked emergently, namely, the chain saw needs to be braked, so that the chain stops moving in a short time, and the operator is prevented from being cut.
Therefore, the electric chain saw with the variable-frequency brushless motor is improved.
Disclosure of Invention
The electric chain saw has the advantages of convenience for tensioning, adjusting and controlling the saw chain of the electric chain saw, convenience for quickly braking the electric chain saw, guarantee of use safety of the electric chain saw, convenience for heat dissipation and dust removal and the like, and solves the technical problems in the background art.
(II) technical scheme
In order to achieve the purpose, the invention provides an electric chain saw with a variable-frequency brushless motor, which comprises an installation cover, a machine body, a baffle plate, a base and a handle, wherein a chain saw guide plate is installed inside the installation cover and the machine body, the chain saw guide plate comprises a first guide plate and a second guide plate which are symmetrically connected, two ends of the first guide plate and the second guide plate are respectively sleeved with a guide plate chain wheel and a gear, a saw chain is sleeved outside the guide plate chain wheel and the gear, the middle part of the guide plate chain wheel is connected with a tensioning device, the tensioning device comprises a push plate, the front end of the push plate is connected with a connecting sleeve, one end of the connecting sleeve is hinged through a hinge, the other end of the connecting sleeve is connected with a screw and is installed at the upper end of the push plate through the screw, a ball is rotatably installed inside the push plate, the rear end of the push plate is connected with an electric push rod and a compression spring, the other ends of the electric push rod and the compression spring are connected inside the first guide plate and the second guide plate, and one end of the gear is connected with the variable-frequency brushless motor.
The dustproof filter plate is mounted inside the machine body, and air inlets are formed in the upper end and the lower end of the rear side of the dustproof filter plate.
The connecting plate is mounted at the front end of the base, the connecting plate is tightly attached to the rear side surface of the machine body, and bolts are mounted on the connecting plate and the machine body in a connecting mode.
And one side of the gear is sleeved with a fan blade, and the fan blade rotates synchronously at the same speed along with the gear.
The base comprises a casing, a connecting groove is formed in the middle of the casing, a telescopic rod is connected inside the connecting groove, and the front end of the telescopic rod is fixedly installed on the machine body.
The middle part of the guide plate chain wheel is provided with a groove, and the width value of the groove is consistent with that of the tensioning device.
Wherein, all seted up row's cinder notch and row's cinder hole on first baffle and the second baffle, just the bar groove has all been seted up at both ends around first baffle and the second baffle to carry out the activity through the bar groove and cup joint baffle sprocket and gear.
Also provides a method for the electric chain saw with the variable-frequency brushless motor, and the beneficial effects of adopting the method with the variable frequency (III)
The invention provides an electric chain saw with a variable-frequency brushless motor, which has the beneficial effects that:
1. the chain saw guide plate is divided into the first guide plate and the second guide plate, the guide plate chain wheel and the gear are sleeved at the two ends of the middle of the first guide plate and the second guide plate, so that a saw chain is supported and connected, the middle of the guide plate chain wheel is sleeved with the tensioning device, the tensioning device is connected with the tensioning device to be movably adjusted on the front sides of the first guide plate and the second guide plate, the saw chain is tensioned and loosened, the saw chain is tensioned when the tensioning device and the guide plate chain wheel extend out towards the front sides, the stability of the saw chain in the using process is facilitated, when the tensioning device and the guide plate chain wheel move backwards, the saw chain is instantaneously loosened and unloaded from a tensioning state and is separated from the guide plate chain wheel, and a brake switch inside the device is matched, so that the saw chain stops rotating, the injury to people is avoided, and the safety of the device is guaranteed.
2. The cavity is formed in the middle of the machine body, the fan blades are sleeved on the gear, the fan blades rotate at a high speed along with the rotation of the gear, air is driven to flow, the air is discharged from the joint of the chain saw guide plate and the saw chain after being filtered on the dustproof filter plate, circulation is conducted along the surface of the chain saw guide plate, dust removal and heat dissipation are conducted on the chain saw guide plate and the saw chain, accumulation of dust inside the device is avoided, and residue residues on the saw chain are effectively avoided.
3. Be equipped with the casing through the rear end at the fuselage, and carry out fixed connection through connecting plate and bolt between fuselage and the casing, be convenient for guarantee the connection stability between casing and the fuselage, and the middle part of casing has seted up the spread groove, and be connected with the telescopic link through the spread groove, extend fuselage and bolt through the telescopic link, be convenient for maintain the trees of high altitude position, and the telescopic link can accomodate the inside at the spread groove completely when the shrink state, the multi-mode of the device of being convenient for is used, and save device space.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an electric chain saw with a variable frequency brushless motor provided by the present application;
FIG. 2 is a schematic structural diagram of an electric chain saw with a variable frequency brushless motor provided herein;
fig. 3 is a schematic structural diagram of an electric chain saw with a variable frequency brushless motor provided in the present application;
fig. 4 is a schematic structural diagram of an electric chain saw with a variable frequency brushless motor provided in the present application;
FIG. 5 is a schematic view of an electric chain saw with a variable frequency brushless motor according to the present application;
FIG. 6 is a schematic structural diagram of an electric chain saw with a variable frequency brushless motor according to the present application;
FIG. 7 is a schematic view of an electric chain saw with a variable frequency brushless motor according to the present application;
fig. 8 is a schematic structural diagram of an electric chain saw with a variable frequency brushless motor according to the present application.
In the figure: 1. installing a cover; 2. a body; 3. a baffle plate; 4. a base; 41. a housing; 42. connecting grooves; 5. a handle; 6. a connecting plate; 7. a bolt; 8. a chain saw guide plate; 81. a first guide plate; 82. a second guide plate; 83. a guide plate sprocket; 84. a gear; 85. a variable frequency brushless motor; 86. a fan blade; 87. a tensioning device; 871. pushing the plate; 872. a ball bearing; 873. connecting sleeves; 874. a screw; 875. an electric push rod; 876. a compression spring; 9. a saw chain; 10. an air inlet; 11. a dustproof filter plate; 12. a telescopic rod.
Detailed Description
The following detailed description of the embodiments of the present invention is provided in connection with the drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in fig. 1 to 8, the present embodiment provides an electric chain saw with a variable frequency brushless motor, including an installation cover 1, a body 2, a baffle 3, a base 4 and a handle 5, a chain saw guide 8 is installed inside the installation cover 1 and the body 2, the chain saw guide 8 includes a first guide 81 and a second guide 82 which are symmetrically connected, and two ends of the first guide 81 and the second guide 82 are respectively sleeved with a guide sprocket 83 and a gear 84, a saw chain 9 is sleeved outside the guide sprocket 83 and the gear 84, a tensioning device 87 is connected in the middle of the guide sprocket 83, and one end of the gear 84 is connected with the variable frequency brushless motor 85, the tensioning device 87 connects the guide sprocket 83 and the saw chain 9, and controls the tensioning degree of the saw chain 9 by the extension and retraction of the tensioning device 87, so as to ensure the stable processing of the saw chain 9 and the fast braking in cooperation with a brake switch of the electric chain saw, which is convenient for operation, the variable frequency brushless motor 85 adopts a brushless dc motor, and mainly comprises a motor body and a driver, the brushless motor has no electric brush, the friction force is greatly reduced, the operation noise is reduced, the variable frequency brushless motor has a long service life, and the variable frequency brushless motor is more convenient for the variable frequency brushless motor.
The tensioning device 87 comprises a push plate 871, a connecting sleeve 873 is connected to the front end of the push plate 871, one end of the connecting sleeve 873 is hinged through a hinge, a screw 874 is connected to the other end of the connecting sleeve 873 and is mounted at the upper end of the push plate 871 through the screw 874, a ball 872 is rotatably mounted inside the push plate 871, an electric push rod 875 and a compression spring 876 are connected to the rear end of the push plate 871, the other ends of the electric push rod 875 and the compression spring 876 are connected inside the first guide plate 81 and the second guide plate 82, the tensioning device 87 is mounted and used so as to drive the front end of the saw chain 9 to be rotatably connected to the guide plate sprocket 83, the saw chain 9 and the guide plate sprocket 83 are separated by being matched with a brake switch of the device so as to adjust the tensioning degree of the saw chain 9 through the telescopic movement of the sprocket 83 at the front ends of the first guide plate 81 and the second guide plate 82, so as to ensure the stability of the saw chain 9 in use, and the retraction state of the guide plate sprocket 83 and the tensioning device 87 are separated from the guide plate sprocket 83 and matched with the brake switch of the device so as to facilitate rapid braking of the saw chain 9 and avoid hurting people in case of emergency.
The internally mounted of fuselage 2 has dustproof filter plate 11, inlet port 10 has all been seted up at both ends about the rear side of dustproof filter plate 11, the upper and lower both ends at fuselage 2 are seted up to inlet port 10, and the installation of dustproof filter plate 11 is convenient for filter the inside air of infiltration inlet port 10, avoid inside gear 84 and the variable frequency brushless motor 85 isotructure of dust viper fuselage 2, guarantee the inside dustless of device, and the air current after the filtration on the dustproof filter plate 11 carries out quick heat dissipation to parts such as the inside gear 84 of fuselage 2 and variable frequency brushless motor 85 under the quick drive of flabellum 86, and blow out along the both sides face of chain saw baffle 8, be convenient for spill the remaining temperature on the chain saw baffle 8, the use of the device of being convenient for.
Connecting plate 6 is installed to base 4's front end, and connecting plate 6 hugs closely at the rear side surface of fuselage 2, and connects on connecting plate 6 and the fuselage 2 and install bolt 7, and fuselage 2 and base 4's installation are connected through connecting plate 6 and bolt 7, are convenient for guarantee base 4 and the stable connection in the use, improve the stability of device.
The middle part of the guide plate chain wheel 83 is provided with a groove, the width value of the groove is consistent with that of the tensioning device 87, the guide plate chain wheel 83 and the tensioning device 87 are installed in a sleeved mode, the guide plate chain wheel 83 and the saw chain 9 are also installed in a sleeved mode, the guide plate chain wheel 83 and the saw chain 9 are pushed by the tensioning device 87 to change the connection tightness of the guide plate chain wheel 83 and the saw chain 9, the tensioning degree of the saw chain 9 can be conveniently controlled and adjusted, the integral using state of the device is adjusted, and the using faults of the device are avoided.
Arrange the slag notch and arrange the cinder hole on first baffle 81 and the second baffle 82 all seted up, and the bar groove has all been seted up at both ends around first baffle 81 and the second baffle 82 to carry out the activity through the bar groove and cup joint baffle sprocket 83 and gear 84, arrange the cinder notch on first baffle 81 and the second baffle 82 and arrange the cinder hole and block up the setting and be convenient for to clear out the residue that the saw chain 9 rotated the in-process and carried, avoid the residue to get into the inside appearance jam of fuselage 2. And the sharpness of the saw chain 9 in the using process is ensured, so that the device is convenient to use with high efficiency.
Specifically, this electric chain saw with frequency conversion brushless motor when using: the saw chain 9 is installed and connected through the chain saw guide plate 8, the saw chain 9 is engaged with the gear 84 and the variable frequency brushless motor 85 in an inter-tooth mode inside the installation cover 1, the gear 84 and the saw chain 9 are driven to rotate rapidly through the variable frequency brushless motor 85, wood is cut through a blade installed on the saw chain 9, a fan blade 86 sleeved outside the gear 84 is subjected to a rapid device while the gear 84 rotates to drive air inside the machine body 2 to flow rapidly, the air enters the machine body 2 through the air inlet 10 and is blown out from the front side opening of the machine body 2 after being filtered through the dustproof filter plate 11, the saw chain 9 is blown in the directions of the chain saw guide plate 8 and the saw chain 9, residual wood chips and dust on the saw chain 9 are removed, the saw chain 9 and the chain saw guide plate 8 are convenient to dissipate heat, and the cutting effect of the saw chain 9 is prevented from being influenced by heat generated by the saw chain 9 in the cutting process, and in the process of connecting the saw chain 9 with the chain saw guide plate 8, the two ends of the saw chain 9 are supported and connected through the guide plate chain wheel 83 and the gear 84, the middle part of the guide plate chain wheel 83 is sleeved with the tensioning device 87, the guide plate chain wheel 83 is tightly sleeved in the tensioning device 87 through the push plate 871 and the connecting sleeve 873, and is supported and connected through the compression spring 876 and the electric push rod 875, when the electric push rod 875 extends outwards, the guide plate chain wheel 83 and the saw chain 9 are supported, so that the front end of the saw chain 9 is tensioned, the output of the saw chain 9 is stable, when the electric chain saw is used in an emergency braking situation, the electric push rod 875 connected on the push plate 871 is quickly powered off, the tensioning device 87 and the guide plate chain wheel 83 are quickly pulled back under the elastic retraction of the compression spring 876, the connection of the saw chain 9 on the chain wheel 83 is disconnected, so that the force of the saw chain 9 is removed, avoid saw chain 9 to appear hindering people's phenomenon, and fuselage 2 and base 4 fix through connecting plate 6 and bolt 7, and base 4's internal connection has telescopic link 12, telescopic link 12 carries out fixed connection with the lateral wall of fuselage 2, before telescopic link 12 is flexible, loosen connecting plate 6 on by bolt 7, and lengthen the distance between fuselage 2 and the base 4 through telescopic link 12, be convenient for increase the length of fuselage 2 and saw chain 9 when using, saw off the branch exceeds, the convenient use of the device of being convenient for.
The above embodiments are merely illustrative of the present invention and are not to be construed as limiting the invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and the technical solution of the present invention is covered by the claims of the present invention.
Claims (7)
1. The utility model provides an electric chain saw with frequency conversion brushless motor, includes installation lid (1), fuselage (2), baffle (3), base (4) and handle (5), its characterized in that: the chain saw guide plate comprises a first guide plate (81) and a second guide plate (82) which are symmetrically connected, the chain saw guide plate (8) is provided with a guide plate chain wheel (83) and a gear (84) in a sleeved mode at two ends of the first guide plate (81) and the second guide plate (82), a saw chain (9) is sleeved on the outer sides of the guide plate chain wheel (83) and the gear (84), the middle of the guide plate chain wheel (83) is connected with a tensioning device (87), the tensioning device (87) comprises a push plate (871), the front end of the push plate (871) is connected with a connecting sleeve (873), one end of the connecting sleeve (873) is hinged through a hinge, the other end of the connecting sleeve (873) is connected with a screw (874) and is installed at the upper end of the push plate (871) through the screw (874), a ball (872) is installed inside the push plate (871) in a rotating mode, the rear end of the push plate (871) is connected with an electric push rod (875) and a compression spring (876), one end of the brushless motor (82) and one end of the brushless motor (85).
2. The electric chain saw with the variable frequency brushless motor according to claim 1, wherein: the dust-proof filter plate is characterized in that a dust-proof filter plate (11) is mounted inside the machine body (2), and air inlets (10) are formed in the upper end and the lower end of the rear side of the dust-proof filter plate (11).
3. The electric chain saw with the variable frequency brushless motor according to claim 1, wherein: connecting plate (6) are installed to the front end of base (4), connecting plate (6) hug closely at the rear side surface of fuselage (2), just connecting on connecting plate (6) and fuselage (2) and installing bolt (7).
4. The electric chain saw with the variable frequency brushless motor according to claim 1, wherein: one side of the gear (84) is sleeved with a fan blade (86), and the fan blade (86) rotates synchronously at the same speed along with the gear (84).
5. The electric chain saw with the variable frequency brushless motor according to claim 1, wherein: base (4) include casing (41), connecting groove (42) have been seted up at the middle part of casing (41), the internal connection of connecting groove (42) has telescopic link (12), the front end fixed mounting of telescopic link (12) is on fuselage (2).
6. The electric chain saw with the variable frequency brushless motor according to claim 1, wherein: the middle part of the guide plate chain wheel (83) is provided with a groove, and the width value of the groove is consistent with that of the tensioning device (87).
7. The electric chain saw with the variable frequency brushless motor according to claim 1, wherein: all seted up row's cinder notch and row's cinder hole on first baffle (81) and second baffle (82), just the bar groove has all been seted up at the preceding back both ends of first baffle (81) and second baffle (82) to carry out the activity through the bar groove and cup joint baffle sprocket (83) and gear (84).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210036611.6A CN114505917B (en) | 2022-01-13 | 2022-01-13 | Electric chain saw with variable-frequency brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210036611.6A CN114505917B (en) | 2022-01-13 | 2022-01-13 | Electric chain saw with variable-frequency brushless motor |
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| Publication Number | Publication Date |
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| CN114505917A CN114505917A (en) | 2022-05-17 |
| CN114505917B true CN114505917B (en) | 2022-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210036611.6A Active CN114505917B (en) | 2022-01-13 | 2022-01-13 | Electric chain saw with variable-frequency brushless motor |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116372487B (en) * | 2023-05-24 | 2023-10-20 | 广州中益机械有限公司 | Automobile part clamping mechanism suitable for small-space spot welding |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2920593Y (en) * | 2006-07-10 | 2007-07-11 | 黄理 | Improved chain saw |
| CN102458784A (en) * | 2009-05-20 | 2012-05-16 | 株式会社牧田 | Chain saw |
| WO2012169963A1 (en) * | 2011-06-07 | 2012-12-13 | Gardena Manufacturing Gmbh | A quick-action chain tensioning device for a chainsaw, and such mechanism and method |
| CN102972216A (en) * | 2012-12-03 | 2013-03-20 | 常州格力博有限公司 | Brushless chain saw |
| CN210025584U (en) * | 2019-04-30 | 2020-02-07 | 吴贵敏 | Saw chain tensioning device of rechargeable chain saw |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103009438B (en) * | 2012-12-05 | 2015-07-15 | 南京德朔实业有限公司 | Chain saw |
-
2022
- 2022-01-13 CN CN202210036611.6A patent/CN114505917B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2920593Y (en) * | 2006-07-10 | 2007-07-11 | 黄理 | Improved chain saw |
| CN102458784A (en) * | 2009-05-20 | 2012-05-16 | 株式会社牧田 | Chain saw |
| WO2012169963A1 (en) * | 2011-06-07 | 2012-12-13 | Gardena Manufacturing Gmbh | A quick-action chain tensioning device for a chainsaw, and such mechanism and method |
| CN102972216A (en) * | 2012-12-03 | 2013-03-20 | 常州格力博有限公司 | Brushless chain saw |
| CN210025584U (en) * | 2019-04-30 | 2020-02-07 | 吴贵敏 | Saw chain tensioning device of rechargeable chain saw |
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| Publication number | Publication date |
|---|---|
| CN114505917A (en) | 2022-05-17 |
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