US-12623369-B2 - Container, cover and chainsaw

US12623369B2US 12623369 B2US12623369 B2US 12623369B2US-12623369-B2

Abstract

The disclosure provides a container, a cover and a chainsaw. The container includes a box body, a cover, a suction device, a first tube and a second tube. The box body is provided with a liquid storage cavity provided with a liquid filling opening and a liquid suction opening. The cover is detachably mounted on the liquid filling opening and is provided with a one-way ventilation structure. The suction device is arranged outside the box body. One end of the first tube is connected with the liquid suction opening, and the other end is connected with a liquid suction port of the suction device. One end of the second tube is connected with a liquid drainage port of the suction device, and the other end extends to a part to be lubricated or cooled of the cutting tool.

Inventors

Lingao Zhang
Jun Shen
Jingshan LI
Shu Huang

Assignees

GREENWORKS (JIANGSU) CO., LTD.

Dates

Publication Date: 20260512
Application Date: 20230821
Priority Date: 20210312

Claims (7)

1 . A container, configured to be mounted on a cutting tool, the container comprising: a box body, provided with a liquid storage cavity, the liquid storage cavity being provided with a liquid filling opening and a liquid suction opening, a cover, detachably mounted on the liquid filling opening, and the cover being provided with a one-way ventilation structure, a suction device, arranged outside the box body, a first tube, one end of the first tube being connected with the liquid suction opening, and the other end of the first tube being connected with a liquid suction port of the suction device, and a second tube, one end of the second tube being connected with a liquid drainage port of the suction device, and the other end of the second tube extending to a part to be lubricated or cooled of the cutting tool; wherein the one-way ventilation structure comprises a through hole arranged on the cover and a one-way valve mounted in the through hole, and a filter part to filter air is mounted on a side of the one-way valve away from an oil storage cavity of the container.
2 . The container according to claim 1 , wherein the cover is provided with an external thread, the external thread is provided with a screw positioning rib, the liquid filling opening is provided with an internal thread matched with the external thread, when the cover is screwed to a set position, an end of the internal thread facing the cover abuts on the screw positioning rib.
3 . The container according to claim 2 , wherein when the cover is screwed to the set position, a rotational torque of the cover is from 4 N·m to 7 N·m.
4 . The container according to claim 1 , wherein a filter device is arranged at one end of the first tube connected with the liquid suction opening.
5 . The container according to claim 1 , wherein the cover is provided with a sealing part and a sinking groove matched with a disassembling tool.
6 . The container according to claim 1 , wherein the cover is provided with a mounting hole, the mounting hole is provided with a spherical cavity.
7 . The container according to claim 1 , wherein the cover further comprises a pulling wire to prevent the cover from being lost, one end of the pulling wire is connected with the cover, the other end of the pulling wire extends into the liquid filling opening and is connected with a blocking part capable of entering the container, and the blocking part is an elastically deformable bracket.

Description

CROSS REFERENCE TO RELATED APPLICATION The present application is a Continuation application of PCT application No. PCT/CN2022/080098 filed on Mar. 10, 2022, which claims the benefit of CN202120522708.9 filed on Mar. 12, 2021, CN202110270231.4 filed on Mar. 12, 2021, CN202120520553.5 filed on Mar. 12, 2021, CN202110420249.8 filed on Apr. 19 12, 2021, CN202120797983.1 filed on Apr. 19 12, 2021, CN202120708037.5 filed on Apr. 8, 2021, CN202120707984.2 filed on Apr. 8, 2021, CN202121895190.X filed on Aug. 13, 2021. All the above are hereby incorporated by reference. TECHNICAL FIELD The disclosure relates to a technical field of cutting machine, specifically relates to a container, a cover and a chainsaw. BACKGROUND With the development of mechanization, hand-held cutting devices have been widely used. Conventional hand-held cutting devices, such as chainsaws, include a motor, a saw chain and a container. The motor drives the saw chain for cutting. Containers are often used to store lubricating oils for lubricating the saw chains. When the chainsaw is in a working state, a suction device is required to pump the lubricating oil in the container to the saw chain. However, the cover of the conventional container is mostly sealed on the liquid filling opening of the container, and the air cannot be replenished in time when the suction device is sucking. Although there are air supplement holes on the cover, it is easy to cause the lubricating oil to overflow from the air supplement holes, which results in leakage pollution. Thus it is necessary to provide a container, a cover and a cutting tool. With the improvement of people's life, more and more electric cutting tools are used in garden and housework, such as chainsaws, hedge trimmers and cutting saws, etc. The hand-held power tools are required to stop the cutting operation in the case of a severe impact such as falling or logging. In the process of violent acceleration operation, the braking device is started to brake the cutting assembly through the inertia of the recoil or the impact of the protective shield, so that the power assembly stops rotating, thereby achieving the function of braking. Moreover, dust and wood chips are likely to enter the gap between the conventional protective shield and the housing, thereby affecting the performance of the whole machine. And there are assembly errors or assembly size errors in the assembly process, these errors will lead to failure of the electronic braking system of the braking device of the power tool. Therefore, it is necessary to provide a braking device, a trigger and a chainsaw to improve the above situations. In addition, the safety of the tool operator must also be considered. The conventional chainsaw is driven by the motor to move the sprocket, and the sprocket teeth drive the chain transmission teeth to move the chain to achieve the cutting function. The function of the sprocket gasket is to be fixed on the end surface of the sprocket teeth of the sprocket disc, which may strengthen the chain and prevent the chain from running away. The sprocket disc and the sprocket gasket are fixed on the same output shaft. Since there is an assembly gap between the sprocket disc and the sprocket gasket of the conventional structure, and the outer diameter of the conventional sprocket gasket is the same as or close to the outer diameter of the sprocket teeth. During the movement of the chain, the transmission teeth of the chain are often caught in the gap between the sprocket disc and the sprocket gasket, causing the chain to be stuck and even high-risk failures such as chain running, chain jumping, and de-chaining. The chainsaw needs to be paused or turned on frequently during use, and the load of the chainsaw frequently braking or blocking is directly loaded on the motor shaft and the rest of the mechanical structure, which is easy to cause damage to the mechanical structure. And most conventional chainsaws integrate the braking handle and the protective shield together, if the chainsaw encounters a relatively hard object such as a tree knot or a metal object when cutting trees, the chainsaw may jump in the direction of the operator's body, On the one hand, the operator may push the protective shield, which enables the chainsaw to execute emergency brake and stops the chain movement in a very short time. On the other hand, the protective shield integrated on the braking handle may block the sawdust from cutting or prevents the operator from being cut by the chain. At the same time, the conventional chainsaw will generate a lot of sawdust during use, and some sawdust will enter the chainsaw body from the rotation position of the rotatable braking handle, threaten the operation of the internal brake and transmission structure of the chainsaw, and reduce the service life of the chainsaw. Therefore, it is necessary to provide a chainsaw to improve the problems mentioned above. SUMMARY The disclosure provides a container an