Electric starting chain saw

Abstract

The utility model discloses an electric starting chain saw which comprises an equipment main machine (1), the equipment main machine (1) is provided with a housing (3), an internal combustion engine (15) is arranged in the equipment main machine (1), and the internal combustion engine (15) is opened through manual pulling or through an electric starting mechanism (9). And the flywheel (16) is mounted on a crankshaft of the internal combustion engine (15), and the flywheel (16) is driven to rotate through manual rotation or through the electric starting mechanism (9). According to the chain saw, the electric starting convenience is considered, meanwhile, a manual starting mode is reserved, the use convenience of the chain saw is improved, the adaptability of equipment in different environments is enhanced, and the chain saw has the advantages of being reasonable in structure, flexible in starting mode, high in starting efficiency and high in reliability.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of oil saw, concretely relates to an electric starting oil saw. BACKGROUND

[0002] Oil saw is a cutting tool widely used in forestry, gardening and woodworking industry, mainly used for logging, pruning and wood cutting operation. The traditional oil saw usually adopts manual starting mode, that is, the flywheel is driven to rotate by pulling the starting rope, thereby starting the internal combustion engine. However, this manual starting mode has certain defects, mainly including the following aspects:

[0003] For the oil saw with large volume, a large pulling force is required during starting, especially in cold weather or long time of non-use, manual starting may become difficult, affecting the use efficiency of the equipment.

[0004] Manual starting needs the user to pull the starting rope repeatedly, which is time-consuming and laborious, especially for the user who works for a long time, which is easy to cause fatigue and reduce work efficiency.

[0005] Due to the influence of user's strength, starting rope rebound speed and other factors, sometimes the starting rope needs to be pulled for several times to successfully start, which affects the operation progress;

[0006] In order to solve the above problems, part of the oil saw products starts to be equipped with electric starting mechanism to reduce the starting difficulty and improve the operation efficiency. The electric starting mechanism usually adopts motor to drive the flywheel to rotate, thereby starting the internal combustion engine, which has the advantages of simple operation and rapid starting. However, the existing electric starting oil saw still has the following shortcomings:

[0007] Most of the existing electric starting oil saws only rely on the motor to start, once the motor fails or the power is insufficient, the equipment will not start normally, affecting the user's use.

[0008] Part of the electric starting system adopts direct motor drive flywheel, which leads to complex structure, increases the manufacturing cost, and may affect the overall reliability of the equipment. SUMMARY

[0009] In order to solve the above problems, the utility model provides an electric starting oil saw, which has both electric starting and manual starting modes. By optimizing the transmission structure, the user can select the starting mode according to the actual demand, ensuring the stable and reliable use of the equipment in different environments.

[0010] The utility model is realized through the following technical schemes: an electric starting oil saw, comprising:

[0011] The device host has a cover, an internal combustion engine is arranged inside the device host, and the internal combustion engine is opened by manual pulling or by an electric starting mechanism;

[0012] A flywheel is arranged on a shaft of the internal combustion engine, and the flywheel is rotated by manual rotation or by the electric starting mechanism.

[0013] As a preferred technical scheme, the electric starting mechanism comprises a driving disc, a gear ring is fixedly arranged on an outer circular surface of the driving disc, a driving motor is arranged in the device host on one side of the gear ring, a driving gear is arranged on an output end of the driving motor, and the driving gear is engaged with the gear ring.

[0014] A transmission member is further arranged, the flywheel is rotated by rotation of the transmission member, a first spring is arranged between an inner side surface of the transmission member and the driving disc, and the first spring is fixed at a first end and a second end of the transmission member and the driving disc, and the transmission member can rotate circumferentially relative to the driving disc.

[0015] The first spring is wound when the driving disc rotates, and the transmission member rotates circumferentially.

[0016] As a preferred technical scheme, a first ratchet wheel is arranged on one side of the transmission member relative to the flywheel, a one-way driving claw is arranged on an outer wall surface of the first ratchet wheel, a driving part is arranged on the flywheel, and the flywheel rotates circumferentially by the one-way driving claw.

[0017] As a preferred technical scheme, a second ratchet wheel is arranged on a side of the driving disc away from the transmission member, a wire disc is arranged outside the second ratchet wheel, a plurality of ratchet claws are arranged on an inner side surface of the wire disc, and the ratchet claws are in driving contact with the second ratchet wheel in a single direction.

[0018] As a preferred technical scheme, a second spring is arranged on an outer end of the wire disc, the second spring is arranged on an inner side surface of the cover, a pull wire is wound on the wire disc, and the second spring is used for resetting the wire disc, and the second spring is wound when the pull wire drives the wire disc to rotate.

[0019] As a preferred technical scheme, an operation handle is further arranged on the device host.

[0020] The device host has a cover, an internal combustion engine is arranged inside the device host, and the internal combustion engine is opened by manual pulling or by an electric starting mechanism; BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0023] Figure 2 It is a schematic diagram of the present application Figure One .

[0024] Figure 3 It is a schematic diagram of the present application Figure Two .

[0025] Figure 4 It is a schematic diagram of the present application Figure Three .

[0026] Figure 5 It is a schematic diagram of the present application Figure One .

[0027] Figure 6 It is a schematic diagram of the present application Figure Two .

[0028] Explanation of reference signs:

[0029] 1, device host; 3, cover; 15, internal combustion engine; 16, flywheel; 14, drive disc; 8, gear ring; 4, drive motor; 5, drive gear; 13, transmission member; 12, first clockwork spring; 17, driving part; 11, second ratchet wheel; 7, wire reel; 10, pawl; 6, second clockwork spring; 9, electric starting mechanism; 2, operating handle. DETAILED DESCRIPTION

[0030] All features disclosed in this specification, or all steps of any methods or processes disclosed, can be combined in any combination, except where it is specifically stated otherwise.

[0031] Any feature disclosed in this specification, unless stated otherwise, can be replaced by any other feature serving the same, or a similar, purpose.

[0032] As Figures 1-6The utility model discloses an electric starting oil saw, including equipment host computer 1, the equipment host computer 1 has a cover 3, is equipped with internal combustion engine 15 in equipment host computer 1, internal combustion engine 15 is started through manual pulling mode, or realizes starting through electric starting mechanism 9, to improve the convenience and adaptability of use. The flywheel 16 is installed on the machine shaft of internal combustion engine 15, and it is started through manual mode rotation, or is driven rotation through electric starting mechanism 9, to realize double starting mode, ensure the reliable starting of equipment under different working conditions.

[0033] Electric starting mechanism 9 includes driving disc 14, the outer circle of driving disc 14 fixed installation has gear ring 8, the inside of equipment host computer 1, is equipped with drive motor 4 on the one side of gear ring 8, the output end of drive motor 4 is installed with driving gear 5, and driving gear 5 is engaged with gear ring 8, and the rotation of drive motor 4 drives driving disc 14 to rotate. The rotation of driving disc 14 further drives the rotation of transmission part 13, to indirectly drive the rotation of flywheel 16, so that internal combustion engine 15 is started smoothly.

[0034] In electric starting mechanism 9, still including a transmission part 13, the rotation of transmission part 13 can drive the rotation of flywheel 16, to realize starting function. The inner side of transmission part 13 is installed with first clockwork 12 between driving disc 14, one end of first clockwork 12 is fixed on transmission part 13, and the other end is fixed on driving disc 14. The effect of first clockwork 12 is that when driving disc 14 rotates, first clockwork 12 is reeled, and stores certain elastic potential energy. When first clockwork 12 releases, transmission part 13 drives flywheel 16 to rotate along, to assist starting internal combustion engine 15, so that the starting process is more smooth, and the starting efficiency is improved.

[0035] To ensure that transmission part 13 can smoothly drive the rotation of flywheel 16, the side of transmission part 13 relative to flywheel 16 is provided with the first ratchet wheel of protrusion. The outer wall surface of first ratchet wheel is installed with one-way driving claw, and the driving part 17 is protruded on flywheel 16. When transmission part 13 rotates under the action of the release force of first clockwork 12, one-way driving claw contacts driving part 17 and drives flywheel 16 to rotate, so that internal combustion engine 15 is started smoothly. At the same time, due to the existence of one-way driving claw, flywheel 16 will not rotate reversely after starting due to reaction force, to achieve the purpose of resetting.

[0036] In addition, in order to ensure the function of manual starting, the side of the driving disc 14 away from the transmission 13 is provided with a second ratchet 11, and a wire disc 7 is mounted outside the second ratchet 11, and the inner side of the wire disc 7 is provided with a plurality of pawls 10 which are in driving contact with the second ratchet 11 in a single direction. When the user pulls the starting rope, the wire disc 7 rotates and drives the second ratchet 11 to rotate through the pawls 10, and then drives the driving disc 14 to rotate. Through the second ratchet and the pawls, the electric starting can be unidirectional motion without affecting the rotation of the wire disc.

[0037] The outer side of the wire disc 7 is also provided with a second spring 6, and the other end of the second spring 6 is fixed to the inner side of the housing 3. The function of the second spring 6 is to be wound and store elastic potential energy when the user pulls the starting rope. After the user releases the starting rope, the second spring 6 releases energy and drives the wire disc 7 to reset, so that the starting rope can be automatically reset, thereby avoiding the problem of poor rebound or damage of the starting rope in the traditional manual starting process, and improving the stability and service life of the manual starting.

[0038] In addition, in order to improve the operation convenience of the device, the device host 1 is also provided with an operation handle 2, which facilitates the user to stably hold the chainsaw during operation and provides better control force, so that the use is more comfortable.

[0039] The electric starting chainsaw adopts the combination of electric starting and manual starting, so that the user can select the appropriate starting mode according to the actual use requirement.

[0040] When the power is sufficient, the electric starting mechanism 9 can be used to realize fast starting and improve the work efficiency; when the power is insufficient or the electric starting mechanism 9 fails, the user can still start the internal combustion engine 15 by manually pulling the starting rope, so as to ensure the reliability and continuous availability of the device.

[0041] At the same time, the wire disc 7 and the second spring 6 in the manual starting mechanism can ensure the automatic reset of the starting rope, so that the manual starting is more smooth, and the problem of affecting the starting efficiency due to the relaxation or poor rebound of the starting rope in the traditional manual starting mechanism is avoided.

[0042] The utility model discloses a combination of electric starting and manual starting, which improves the use convenience of the chainsaw and enhances the adaptability of the device in different environments. The structure design is reasonable, the starting mode is flexible, the starting efficiency is high and the reliability is strong, and the utility model has wide application value.

[0043] The above merely describes a specific implementation of the present application, but the protection scope of the present application is not limited thereto, any change or replacement not through creative labor should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be limited by the protection scope defined in the claims.

Claims

1. An electrically started chainsaw, characterized in that, include: The main unit of the equipment (1) has a cover (3) and an internal combustion engine (15) is installed inside the main unit of the equipment (1). The internal combustion engine (15) can be opened by manually pulling it out or by an electric start mechanism (9). A flywheel (16) is mounted on the shaft of the internal combustion engine (15). The flywheel (16) is rotated by manual rotation or by the electric start mechanism (9).

2. The electrically started chainsaw according to claim 1, characterized in that: The electric start mechanism (9) includes a drive disk (14), on which a gear ring (8) is fixedly installed. A drive motor (4) is installed in the main unit (1) of the equipment located on one side of the gear ring (8). A drive gear (5) is installed at the output end of the drive motor (4), and the drive gear (5) meshes with the gear ring (8). It also includes a transmission component (13), which drives the flywheel (16) to rotate. A first spring (12) is installed between the inner side of the transmission component (13) and the drive disk (14). The transmission component (13) and the drive disk (14) are fixed at the beginning and end of the first spring (12). The transmission component (13) can rotate circumferentially relative to the drive disk (14). When the drive disc (14) rotates, it winds up the first spring (12) and drives the transmission component (13) to rotate in a circle.

3. The electrically started chainsaw according to claim 2, characterized in that: The transmission component (13) has a protruding first ratchet on the side opposite to the flywheel (16). The outer wall of the first ratchet is provided with a one-way drive pawl. The flywheel (16) is provided with a protruding drive part (17). The flywheel (16) is driven to rotate circumferentially by the one-way drive pawl.

4. The electrically started chainsaw according to claim 3, characterized in that: The drive disc (14) has a second ratchet (11) on the side opposite to the transmission member (13). A wire disc (7) is provided outside the second ratchet (11). A plurality of pawls (10) are provided on the inner side of the wire disc (7). The pawls (10) make driving contact with the second ratchet (11) on a unidirectional surface.

5. The electrically started chainsaw according to claim 4, characterized in that: A second spring (6) is installed on the outer end of the spool (7). The second spring (6) is installed on the inner side of the cover (3). A pull wire is wound on the spool (7). The second spring (6) is used to reset the spool (7). When the pull wire pulls and drives the spool (7) to rotate, the second spring (6) is wound up.

6. The electrically started chainsaw according to claim 1, characterized in that: The main unit (1) of the device is also equipped with an operating handle (2).

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