WO2022241810A1

WO2022241810A1 - Tree saw

Info

Publication number: WO2022241810A1
Application number: PCT/CN2021/096079
Authority: WO
Inventors: 邓伟
Original assignee: 苏州甘泰精密机械有限公司
Priority date: 2021-05-20
Filing date: 2021-05-26
Publication date: 2022-11-24
Also published as: CN113115657A

Abstract

Disclosed in the present invention is a tree saw, comprising: a machine body provided with a saw chain mechanism and a driving mechanism, the driving mechanism being connected to the saw chain mechanism and used for driving the saw chain mechanism when a circuit of the tree saw is in a connected state, and the machine body being connected to a rotary button; and a handle connected to the machine body and provided with a trigger and a reverse self-locking button, wherein the machine body and at least one of the trigger and the reverse self-locking button form an interlock or cooperatively control the circuit of the tree saw to be in the connected state, so as to ensure that the saw chain mechanism cannot be activated when the machine body and/or the handle is/are in a rotary adjustment state. By means of the tree saw provided in the present invention, cutting is performed with a cutting surface of the saw chain mechanism forming a certain angle with the handle, which can completely avoid the region where the cut branches fall off after cutting, and also safely and conveniently cut the branches on the back side of a trunk so as to solve the problem of inconvenience for a conventional chainsaw operator due to it not being easy to approach an object to be cut to operate on the back side. In addition, when cutting roots of shrubs, the hands can be kept away from the ground to prevent scratches, the cutting surface is closer to the ground, the cut stump can be flush, and the operation is more flexible and safe.

Description

a tree saw

technical field

The invention belongs to the technical field of tree saws, and in particular relates to a tree saw.

Background technique

Most of the handles of existing tree saws are fixed, and the angle of the handle cannot be adjusted. When cutting, the operator's position is relatively fixed, which is not conducive to operating on the cutting ground or in a narrow space, and is also not conducive to finding a safer position for cutting.

Contents of the invention

In order to solve the problems in the prior art, the object of the present invention is to provide a tree saw.

In order to achieve the above object and achieve the above technical effect, the technical solution adopted in the present invention is:

A tree saw comprising:

Body, the body is provided with a saw chain mechanism and a drive mechanism, the drive mechanism is connected with the saw chain mechanism and drives the saw chain mechanism to perform cutting operations when the circuit of the tree saw is in the open state, and the body is connected with the rotary knob;

The handle, the handle is connected with the body, the handle is provided with a trigger and anti-self-locking button, the body is locked by the trigger or the saw chain mechanism is started to cut when the circuit of the tree saw is in the open state, and the body or trigger is locked by the anti-self-locking button , by adjusting the rotary knob to lock or unlock the handle, the control handle rotates relative to the saw chain mechanism, and adjusts the angle between the handle and the cutting plane;

At least one of the body and the trigger and the anti-self-locking button forms an interlock or cooperates to control the circuit of the tree saw in an open state, ensuring that the saw chain mechanism and the drive mechanism cannot start running when the body and/or handle are in the rotational adjustment state.

Further, the top of the trigger is provided with a limiting part adapted to the anti-self-locking button, and the bottom of the trigger is provided with a trigger locking part adapted to the body. When the trigger locking part is locked by the body, the trigger is locked, making the circuit open state, the saw chain mechanism cannot operate.

Further, the bottom of the machine body is provided with several protrusions arranged at intervals, and the space between adjacent protrusions is suitable for the trigger locking part and is sufficient to accommodate the trigger locking part. When the trigger locking falls on the adjacent protrusions When the trigger is not locked and can move freely in the space between, the circuit is connected or disconnected. When the trigger locking part is connected with the raised part, the trigger is locked, so that the circuit is in an open circuit state, and the saw chain mechanism cannot operate.

Further, the limit part is a groove set on the top of the trigger. After the anti-self-locking button is stuck in the groove, the trigger is locked, so that the circuit is in an open circuit state, and the saw chain mechanism cannot operate.

Further, the body or the handle is provided with a normally-on break switch, the handle is provided with a switch circuit, the trigger is provided with a normally-off handle switch, the handle switch and the break switch are respectively connected to the switch circuit, and the handle switch And the break switch controls the on and off of the switch circuit, and controls the start and stop of the saw chain mechanism through the on and off of the switch circuit. Can't run.

Compared with prior art, the beneficial effect of the present invention is:

The invention discloses a tree saw, which comprises: a body, on which a saw chain mechanism and a drive mechanism are arranged, the drive mechanism is connected with the saw chain mechanism and drives the saw chain mechanism to perform cutting operations when the circuit of the tree saw is in the open state, the body and The rotary button is connected; the handle is connected with the body, and the trigger and anti-self-locking button are set on the handle. The body is locked by the trigger or the saw chain mechanism is started to cut when the circuit of the tree saw is in the open state, and the body is locked by the anti-self-locking button. Or the trigger, by adjusting the rotary knob to lock or unlock the handle, the control handle rotates relative to the saw chain mechanism, and adjusts the angle between the handle and the cutting plane; the body forms an interlock or cooperative control with at least one of the trigger and the anti-self-locking button The electric circuit of the tree saw is in the open state, so as to ensure that the saw chain mechanism and the drive mechanism cannot start to run when the body and/or the handle are in the state of rotation adjustment. In the tree saw provided by the invention, the cutting surface of the saw chain mechanism and the handle form a certain angle to complete the cutting, which can completely avoid the area where the branches fall after cutting, and can also safely and conveniently cut the branches on the opposite side of the trunk, solving the problem of conventional chain saw operators It is not easy to get close to the object to be cut for the inconvenience of reverse operation. When cutting the roots of shrubs, the hands can be kept away from the ground to avoid scratches.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the top view of the present invention;

Fig. 3 is the structural representation of drive mechanism of the present invention;

Fig. 4-5 is respectively the structural schematic diagram of the embodiment 1 of the present invention; I place among Fig. 4 is the partially enlarged view;

Fig. 6 is a schematic structural view of Embodiment 2 of the present invention; II in Fig. 6 is a partially enlarged view;

Fig. 7 is a circuit connection diagram of the present invention; Fig. 7a is a circuit connection diagram of embodiment 2; Fig. 7b is a circuit connection diagram of embodiment 3.

Detailed ways

The embodiments of the present invention are described in detail below, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

As shown in Figure 1-7, a tree saw includes:

Body 1, a saw chain mechanism 2 and a drive mechanism 11 are arranged on the body 1, the drive mechanism 11 is connected with the saw chain mechanism 2 and drives the saw chain mechanism 2 to carry out cutting operations when the circuit of the tree saw is in the open state, the body 1 and the rotary knob 6 connect;

The handle 5, the handle 5 is connected with the body 1, the trigger 7 and the anti-self-locking button 8 are set on the handle 5, the body 1 is locked by the trigger 7 or the circuit of the tree saw is connected to start the saw chain mechanism 2 for cutting operation, and the anti-self-locking button 8 Lock the body 1 or the trigger 7, lock or unlock the handle 5 by adjusting the rotary knob 6, control the handle 5 to rotate relative to the saw chain mechanism 2, and adjust the angle between the handle 5 and the cutting plane of the saw chain mechanism 2;

At least one of the body 1 and the trigger 7 and the anti-self-locking button 8 forms an interlock or cooperates to control the circuit of the tree saw in the open state, ensuring that the body 1 and/or the handle 5 are in the rotation adjustment state of the saw chain mechanism 2 and the driving mechanism 11 It cannot start running, that is, it cannot perform cutting operations.

When the handle 5 of the present invention is rotated and adjusted, the drive mechanism 11 cannot be started, and thus the saw chain mechanism 2 cannot operate, and any cutting operations cannot be performed. Based on security considerations, the present invention designs the following two implementation modes:

The first mode adopts a mechanical locking structure. The main working principle is: when the circuit of the tree saw is in the open state, the driving mechanism 11 (mainly refers to the motor) starts, and the body 1 is locked by the trigger 7 or the anti-self-locking button 8. At this time, it cannot When the rotation adjustment is performed, and the body 1 can be rotated and adjusted, the trigger 7 or the anti-self-locking button 8 is locked. At this time, the circuit of the tree saw is in an open circuit state, and the driving mechanism 11 cannot drive the saw chain mechanism 2 to run, as shown in Figure 1-5 shown;

The second mode adopts the circuit control structure, and the main working principle is: as long as the body 1 or the handle 5 is rotated and adjusted, the whole circuit will be in an open circuit state. At this time, the locking of the handle 5 is not necessary. For example, when the tree saw is cutting, as long as the user rotates and adjusts it, he will actively disconnect the disconnect switch, and the tree saw will stop working, but after the tree saw is adjusted to the set position, the tree saw will restart and enter the working state (of course The handle 5) can be locked during work, as shown in Figures 1-3 and 6-7.

Example 1

As shown in Figure 1-5, a tree saw includes:

Body 1, a saw chain mechanism 2 and a drive mechanism 11 are arranged on the body 1, the drive mechanism 11 is connected with the saw chain mechanism 2 and drives the saw chain mechanism 2 to carry out cutting operations when the circuit of the tree saw is in the open state, the body 1 and the rotary knob 6 connection; as a specific implementation, the driving mechanism 11 of this embodiment includes a motor, which can be powered by a DC power supply or an AC power supply. The saw chain mechanism 2 includes a support plate 3 and a saw chain 4. The groove provided on the support plate 3 A saw chain 4 is arranged inside, and the saw chain 4 is meshed with the gear 10. The motor is connected to the gear 10 through the existing transmission mechanism, and the saw chain 4 is driven by the motor to drive the gear 10 to perform cutting operations. The saw chain mechanism 2 can also adopt other existing structures. Just make sure that the cutting function can be realized;

The handle 5 is provided with a limit groove 81 for accommodating the anti-self-locking button 8 and compatible with the anti-self-locking button 8, and a position-limiting portion adapted to the anti-self-locking button 8 is set at or near the top of the trigger 7. The part is preferably set at the top of the trigger 7 or a groove close to the top. The anti-self-locking button 8 adopts existing structures such as a magnetic strip structure. The anti-self-locking button 8 is placed in the limiting groove 81, and can be flexibly snapped into the groove or Stretch out from the groove, when the anti-self-locking button 8 is stuck in the groove, the trigger 7 is locked, the trigger 7 cannot move freely, the circuit of the tree saw remains disconnected, and the saw chain mechanism 2 cannot operate.

The bottom of the trigger 7 is provided with a trigger locking part 12 adapted to the body 1. After the trigger locking part 12 is locked by the body 1, the trigger 7 is locked, the circuit is disconnected, and the saw chain mechanism 2 cannot operate.

As a more specific embodiment, the bottom of the body 1 is provided with several protrusions arranged at intervals, and the space 13 between adjacent protrusions is adapted to the trigger locking part 12 and is sufficient to accommodate the trigger locking part 12. When the trigger When the locking part 12 falls in the space 13 between the adjacent protrusions, the trigger 7 is not locked and can move freely, and the circuit of the tree saw is connected or disconnected. When the trigger locking part 12 is in contact with the protrusions, The trigger 7 is locked, so that the circuit of the tree saw is in an open circuit state, and the saw chain mechanism 2 cannot operate, and now the handle 5 can be rotated.

In order to quantitatively adjust the rotation angle of the handle 5 , in this embodiment, several angle adjustment gears are provided on the cutting plane of the handle 5 relative to the saw chain 4 . Therefore, when the tree saw is cutting branches, etc., an appropriate cutting angle can be selected by adjusting the angle of the handle 5 relative to the cutting surface according to actual needs, so as to completely avoid cutting objects such as fallen branches, and can also perform operations on the reverse side, which is closer to the cutting surface. Ground cutting, strong accessibility and high practical value.

The tree saw in this embodiment uses an external commercial power supply as a power source, and the circuit is in a through state by connecting the external commercial power supply.

Example 2

The difference between this embodiment 2 and embodiment 1 is that the tree saw in this embodiment 2 does not need to perform interlocking of the mechanical structure, does not need to set the trigger locking part 12, and only needs to set a normally open circuit breaker on the body 1 or the handle 5 15. A switch circuit is set on the handle 5, and the switch circuit is the circuit of the tree saw. A handle switch 14 that is normally off is set on the trigger 7. The handle switch 14 and the circuit breaker 15 are respectively connected to the switch circuit. Through the handle switch 14 and the circuit breaker 15 Control the on and off of the switch circuit, and control the start and stop of the saw chain mechanism through the on and off of the switch circuit. When the body 1 or the handle 5 is rotated and adjusted, the break switch 15 is turned off, so that the switch circuit is in an open state, and the driving mechanism 11 cannot be started. Mechanism 2 cannot operate, as shown in Fig. 6 and Fig. 7a, at this time, the motor is powered by AC power. When the body 1 or the handle 5 were limited, the disconnect switch 15 was normally connected, and now only need to control the on-off of the on-off control switch circuit by the handle switch 14, and then realize the start-stop saw chain mechanism 2.

The rest are the same as embodiment 1.

Example 3

The difference between this embodiment 3 and embodiment 2 is that the motor of this embodiment 3 is powered by a DC power supply, and a normally open circuit breaker 15 is set on the body 1 or the handle 5, and a switch circuit is set on the handle 5, and the switch circuit is a tree. For the circuit of the saw, the trigger 7 is provided with a handle switch 14 that is normally off, the handle switch 14 and the circuit breaker 15 are respectively connected to the switch circuit, the on-off of the switch circuit is controlled by the handle switch 14 and the circuit breaker 15, and the on-off control of the switch circuit To start and stop the saw chain mechanism, a control board is also provided on the switch circuit. The function of the control board is to realize over-current and over-discharge protection. As shown in Figure 7b, when the body 1 or the handle 5 of the tree saw is rotated and adjusted, the circuit breaker 15 is disconnected. , so that the switch circuit is in an open circuit state, the driving mechanism 11 cannot be started, and the saw chain mechanism 2 cannot operate.

Remaining with embodiment 2.

The parts not specifically described in the present invention can adopt the prior art, and will not be repeated here.

The above is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technologies fields, all of which are equally included in the scope of patent protection of the present invention.

Claims

A tree saw, characterized in that it comprises:

Body, the body is provided with a saw chain mechanism and a drive mechanism, the drive mechanism is connected with the saw chain mechanism and drives the saw chain mechanism to perform cutting operations when the circuit of the tree saw is in the open state, and the body is connected with the rotary knob;

The handle, the handle is connected with the body, the handle is provided with a trigger and anti-self-locking button, the body is locked by the trigger or the saw chain mechanism is started to cut when the circuit of the tree saw is in the open state, and the body or trigger is locked by the anti-self-locking button , by adjusting the rotary knob to lock or unlock the handle, the control handle rotates relative to the saw chain mechanism, and adjusts the angle between the handle and the cutting plane;

At least one of the body and the trigger and the anti-self-locking button forms an interlock or cooperates to control the circuit of the tree saw in an open state, ensuring that the saw chain mechanism and the drive mechanism cannot start running when the body and/or handle are in the rotational adjustment state.
The tree saw according to claim 1, characterized in that, the top of the trigger is provided with a limiting part adapted to the anti-self-locking button, the bottom of the trigger is provided with a trigger locking part adapted to the body, and the trigger locking part When locked by the body, the trigger is locked, so that the circuit is in an open circuit state, and the saw chain mechanism cannot operate.
The tree saw according to claim 2, wherein the bottom of the machine body is provided with several protrusions arranged at intervals, and the space between adjacent protrusions is adapted to the trigger locking part and is sufficient to accommodate the trigger The locking part, when the trigger locking part is in the space between the adjacent protrusions, the trigger is not locked and can move freely, the circuit is turned on or off, when the trigger locking part touches the protrusions, the trigger is locked , so that the circuit is in an open circuit state, and the saw chain mechanism cannot operate.
The tree saw according to claim 2, characterized in that, the limit part is a groove opened on the top of the trigger, and the trigger is locked after the anti-self-locking button is stuck in the groove, so that the circuit is in an open state, Saw chain mechanism does not work.
The tree saw according to claim 1, characterized in that, a normally-on break switch is provided on the body or the handle, a switch circuit is provided on the handle, a normally-off handle switch is provided on the trigger, and the handle The switch and the circuit breaker are respectively connected with the switch circuit, the on-off of the switch circuit is controlled by the handle switch and the circuit breaker switch, and the start and stop of the saw chain mechanism is controlled by the on-off of the switch circuit. The circuit is in an open circuit state, the drive mechanism cannot be started, and the saw chain mechanism cannot operate.