CN215618636U

CN215618636U - Safe type electricity chain saw

Info

Publication number: CN215618636U
Application number: CN202121658243.6U
Authority: CN
Inventors: 潘继宗
Original assignee: Yongkang Yitong Tools Co ltd
Current assignee: Yongkang Yitong Tools Co ltd
Priority date: 2021-07-20
Filing date: 2021-07-20
Publication date: 2022-01-25
Anticipated expiration: 2031-07-20

Abstract

The utility model discloses a safe electric chain saw, which comprises a shell with a handle, a power mechanism, a cutting chain and a chain guide plate, wherein a baffle is arranged on the shell close to the chain guide plate and is rotationally connected with a trigger mechanism, the trigger mechanism at least comprises a trigger switch, a limiting unit and a transmission unit, external force is applied to stir the baffle, the baffle is abutted against the trigger switch to trigger the closing of the power mechanism, and the limiting unit keeps the baffle in a state that the power mechanism is closed. The power mechanism can be closed by starting the trigger switch by shifting the baffle plate by external force, and the baffle plate not only plays a role of blocking fine scraps generated by cutting, but also plays a role of a trigger key for rapidly stopping cutting, so that the safety performance is higher; the baffle is close to the second portion of gripping and sets up, and in case the unexpected state takes place, the hand in the second portion of gripping can stir the baffle fast and close power unit in order to trigger, easy operation, swift, and the security performance improves greatly.

Description

Safe type electricity chain saw

Technical Field

The utility model belongs to the field of cutting tools, and particularly relates to a safe electric chain saw.

Background

The electric chain saw is a hand saw powered by a motor and is mainly used for felling and building materials. The electric chain saw utilizes the cutting chain to move back and forth on the chain guide plate to realize shearing, the cutting speed is high, danger easily occurs in the cutting process, and once the situation occurs, the electric chain saw needs to be closed immediately, but because both hands hold the handle of the electric chain saw, the switch of the power mechanism is far away from the area of holding, the operation is not timely enough, and the safety of a user cannot be guaranteed.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides the safe electric chain saw which has higher safety performance and can stop cutting immediately when a condition occurs.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a safe type electric chain saw, includes the casing that has the handle, locates the power unit in the casing, the cutting chain of being connected with the power unit cooperation, and is used for supporting the chain baffle of cutting chain, the position that is close to the chain baffle on the casing is equipped with the baffle, and this baffle rotates with trigger mechanism and links to each other, trigger mechanism includes trigger switch at least, spacing unit, and the drive unit who links to each other with the baffle, exerts external force and stirs the baffle, the baffle with trigger switch offsets to trigger and close power unit, spacing unit keeps the baffle in the state that power unit closed.

The utility model can start the trigger switch to close the power mechanism by shifting the baffle plate by external force, and the baffle plate not only plays a role of blocking fine scraps generated by cutting, but also plays a role of a trigger key for rapidly stopping cutting, thereby having higher safety performance.

Further, the handle comprises a first holding portion and a second holding portion, and the second holding portion is arranged close to the baffle. The baffle is close to the second portion of gripping and sets up, and the user is when operation electric chain saw, and both hands are placed respectively on first portion of gripping and the second portion of gripping, in case unexpected state takes place, the baffle can be stirred in order to trigger to close power unit fast to the hand in the second portion of gripping, easy operation, swift, and the security performance improves greatly.

Furthermore, the baffle is provided with a first limit clamping groove and a second limit clamping groove, when the limit unit falls into the first limit clamping groove, the baffle abuts against the trigger switch, and when the limit unit falls into the second limit clamping groove, the baffle is far away from the trigger switch. First spacing draw-in groove and the spacing draw-in groove of second have played the state of keeping the baffle at butt trigger switch and keep away from trigger switch.

Furthermore, the limiting unit comprises an elastic part connected with the inner wall of the shell and a ball bearing abutted against the end part of the elastic part, and the elastic part extends inwards in the direction vertical to the axis of the shell; the baffle is including stretching out the plate body of casing and the connecting portion that link to each other with the plate body, the lateral wall of connecting portion forms first spacing draw-in groove and the spacing draw-in groove of second, its and ball adaptation. Ball and elastic component cooperation can make a round trip to beat between first spacing draw-in groove and the spacing draw-in groove of second, simple structure, and is spacing firm.

Furthermore, the transmission unit comprises a resetting piece, a support piece partially inserted into the resetting piece, and an adapter piece rotationally connected with the support piece, and the adapter piece is rotationally connected with the connecting part. The setting of transmission unit for the rotation of baffle is more convenient, nimble, and when connecting portion kept away from trigger switch, resets and is in by compression state, rotates butt trigger switch for connecting portion next time and provides strength, makes the hand only need less power just can stir the baffle in order to open trigger switch, and the security performance obtains guaranteeing.

Furthermore, a positioning cavity is formed in the shell, the resetting piece is installed in the positioning cavity, and the end part of the resetting piece is abutted against the inner bottom surface of the positioning cavity. The positioning cavity is convenient for the installation and the limitation of the reset piece, and the stability of the matching structure is ensured.

Furthermore, the positioning cavity is composed of a frame structure arranged on the inner wall of the shell and a side plate spliced with the side opening of the frame structure.

Further, a supporting plate for supporting the supporting piece is formed in the shell.

Further, the plate body extends upwards along a direction perpendicular to the axis of the shell to block chips generated by cutting.

Further, the trigger switch is a microswitch.

The utility model has the beneficial effects that: the baffle is pulled by external force to start the trigger switch to close the power mechanism, the baffle not only plays a role in blocking fine scraps generated by cutting, but also plays a role in quickly stopping a trigger key for cutting, and the safety performance is higher; the baffle is arranged close to the second holding part, when a user operates the electric chain saw, two hands are respectively placed on the first holding part and the second holding part, and once an accident occurs, the hands on the second holding part can quickly stir the baffle to trigger the closing of the power mechanism, so that the operation is simple and quick, and the safety performance is greatly improved; the whole assembly structure is simple and stable, and the transmission is effective.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is a partial structural diagram of the first embodiment of the present invention.

Fig. 4 is a partial structural schematic diagram of the present invention.

Fig. 5 is a schematic view of the structure of the baffle and transmission unit of the present invention.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 5, a safety electric chain saw includes a housing 1 having a handle 2, a power unit 3 installed in the housing 1, a cutting chain (not shown) engaged with the power unit 3, and a chain guide 4 for supporting the cutting chain. To prevent the debris from the cutting from falling on the user and causing a hazard, a baffle 6 is provided on the housing 1 adjacent the chain guide 4. The baffle 6 is rotatably connected with the trigger mechanism 7, the trigger mechanism 7 at least comprises a trigger switch 71, a limit unit 72 and a transmission unit 73 connected with the baffle 6, external force is applied to stir the baffle 6, the baffle 6 can be abutted against the trigger switch 71 to trigger the power closing mechanism 3, so that the cutting action is stopped, and the limit unit 72 can keep the baffle 6 in a state that the power closing mechanism 3 is closed.

Specifically, the baffle 6 comprises a plate body 61 extending from the upper part of the shell 1 and a connecting part 62 connected with the plate body 61, wherein the plate body 61 extends upwards along the direction vertical to the axis of the shell 1 and is used for blocking chips generated by cutting; a first stopper groove 621 and a second stopper groove 622 are formed on the side wall of the connection portion 62. The limiting unit 72 includes an elastic member 721 connected to the inner wall of the housing 1, and a ball 722 abutting against the end of the elastic member 721, the ball 722 is adapted to the first limiting slot 621 and the second limiting slot 622, that is, the first limiting slot 621 and the second limiting slot 622 are arc-shaped grooves adapted to the shape of the ball 722. The elastic member 721 extends inward along a direction perpendicular to the axis of the housing 1, and in this embodiment, the elastic member 721 is a spring.

The second limiting slot 622 is closer to the plate body 61, and when the ball 722 of the limiting unit 72 falls into the first limiting slot 621, the baffle 6 abuts against the trigger switch 71, so as to trigger the trigger switch to close the power mechanism 3, and the status of closing the power mechanism 3 is maintained; when the balls 722 of the limit unit 72 fall into the second limit catch recess 622, the shutter 6 is away from the trigger switch 71 and is held in this state. The connecting portion 62 can be switched between two states by applying an external force to the plate body 61 of the shutter 6. In the present embodiment, the trigger switch 71 is a microswitch.

The transmission unit 73 includes a reset member 731, a support member 732 partially inserted into the reset member 731, and an adaptor member 733 rotatably coupled to the support member 732, the adaptor member 733 being rotatably coupled to the connecting portion 62 of the barrier 6. For the convenience of installation, a positioning cavity 11 is formed in the housing 1, and the reset piece 731 is installed in the positioning cavity 11 along the axial direction, and the end of the reset piece is abutted against the inner bottom surface of the positioning cavity 11. Specifically, the positioning cavity 11 is composed of a frame structure 12 disposed on the inner wall of the housing 1 and a side plate 13 engaged with a side opening of the frame structure 12. The width of the positioning cavity 11 is substantially equal to the outer diameter of the reset piece 731, and in this embodiment, the reset piece 731 is a spring. In order to guarantee structural stability, a supporting plate 14 for supporting the supporting member 732 is formed in the housing 1.

The handle 2 comprises a first holding part 21 positioned at the end part of the shell 1 and a second holding part 22 positioned above the shell 1, the second holding part 22 is arranged close to the baffle 6, and when the handle is used, two hands are respectively placed on the first holding part 21 and the second holding part 22.

When an accident occurs, a hand placed on the second holding portion 22 immediately pulls the plate body 61 of the baffle 6, the plate body 61 rotates in a direction close to the chain guide 4 to drive the connecting portion 62 to rotate, so that the connecting portion 62 abuts against the trigger switch 71, the trigger switch 71 triggers the power-off mechanism 3, the cutting chain 4 stops rotating, the balls 722 fall into the first limiting groove 621 from the second limiting groove 622, and the connecting portion 62 is kept in the state. When the reset is required, the toggle plate 61 is reversed, and the reset piece 731 is compressed to accumulate the trigger potential of the next trigger switch 71, in other words, the force required by the manual toggle plate 61 is small.

The foregoing detailed description is intended to illustrate and not limit the utility model, which is intended to be within the spirit and scope of the appended claims, and any changes and modifications that fall within the true spirit and scope of the utility model are intended to be covered by the following claims.

Claims

1. The utility model provides a safe type electricity chain saw, includes casing (1) that has handle (2), locates power unit (3) in casing (1), the cutting chain of being connected with power unit (3) cooperation, and be used for supporting chain guide (4) of cutting chain, its characterized in that: the chain guide plate is characterized in that a baffle (6) is arranged at a position, close to the chain guide plate (4), on the shell (1), the baffle (6) is connected with a trigger mechanism (7) in a rotating mode, the trigger mechanism (7) at least comprises a trigger switch (71), a limiting unit (72) and a transmission unit (73) connected with the baffle (6), external force is applied to toggle the baffle (6), the baffle (6) abuts against the trigger switch (71) to trigger and close the power mechanism (3), and the limiting unit (72) keeps the baffle (6) in a closing state of the power mechanism (3).

2. The safety electric chain saw of claim 1, wherein: the handle (2) comprises a first holding part (21) and a second holding part (22), and the second holding part (22) is arranged close to the baffle (6).

3. The safety electric chain saw of claim 1, wherein: the baffle (6) is provided with a first limiting clamping groove (621) and a second limiting clamping groove (622), when the limiting unit (72) falls into the first limiting clamping groove (621), the baffle (6) is abutted to the trigger switch (71), and when the limiting unit (72) falls into the second limiting clamping groove (622), the baffle (6) is far away from the trigger switch (71).

4. The safety electric chain saw of claim 1 or 2, wherein: the limiting unit (72) comprises an elastic part (721) connected with the inner wall of the shell (1) and a ball (722) pressed against the end part of the elastic part (721), and the elastic part (721) extends inwards in the direction vertical to the axis of the shell (1); baffle (6) are including stretching out plate body (61) of casing (1) and connecting portion (62) that link to each other with plate body (61), the lateral wall of connecting portion (62) forms first spacing draw-in groove (621) and second spacing draw-in groove (622), its and ball (722) adaptation.

5. The safety electric chain saw of claim 4, wherein: the transmission unit (73) comprises a resetting piece (731), a supporting piece (732) partially inserted into the resetting piece (731), and an adapter piece (733) rotatably connected with the supporting piece (732), wherein the adapter piece (733) is rotatably connected with the connecting part (62).

6. The safety electric chain saw of claim 5, wherein: a positioning cavity (11) is formed in the shell (1), the reset piece (731) is installed in the positioning cavity (11), and the end of the reset piece is abutted to the inner bottom surface of the positioning cavity (11).

7. The safety electric chain saw of claim 6, wherein: the positioning cavity (11) is composed of a frame structure (12) arranged on the inner wall of the shell (1) and a side plate (13) spliced with the side opening of the frame structure (12).

8. The safety electric chain saw of claim 5, wherein: a supporting plate (14) used for supporting the supporting piece (732) is formed in the shell (1).

9. The safety electric chain saw of claim 4, wherein: the plate body (61) extends upwards along the direction perpendicular to the axis of the shell (1) so as to block chips generated by cutting.

10. The safety electric chain saw of claim 1, wherein: the trigger switch (71) is a microswitch.