Tree saw convenient for refueling

Abstract

The utility model relates to the technical field of garden equipment, and discloses a tree saw convenient to oil, which comprises a machine body, a motor arranged in the machine body, a battery pack arranged at the tail end of the machine body and used for supplying power to the motor, a chain and a chain plate arranged at the front end of the machine body, a lubricating oil tank arranged in the machine body, and a side shell arranged on the machine body, the upper side of the lubricating oil tank is provided with an external thread oil filling port opened towards the upper position of the machine body, the external thread oil filling port is in threaded connection with an oil tank cover, the upper side of the side shell is provided with a through hole for the external thread oil filling port to penetrate out, the lubricating oil tank is located on the side close to the motor, and the side wall of the lubricating oil tank is provided with a cambered surface portion close to the outer wall of the motor. When the lubricating oil needs to be filled, the lubricating oil can be filled into the external thread oil filling port only by horizontally placing the machine body, the machine body does not need to be put down towards the side face, and therefore the lubricating oil can be conveniently filled.

Description

Technical Field

[0001] This utility model belongs to the field of garden equipment technology, and specifically relates to a tree saw that is easy to refuel. Background Technology

[0002] An electric chainsaw, also known as a tree saw, is a woodworking power tool that uses a rotating chain saw blade for sawing.

[0003] Currently, Chinese patent CN216701029U, published on June 10, 2022, discloses a lithium-ion battery chainsaw with lighting function. It includes a battery, a power unit, and a cutting unit. Both the battery and the cutting unit are mounted on the power unit. A handle is located at the rear of the power unit, and an auxiliary handle is located in the middle. A braking device, a lubricating oil reservoir, and a light are located at the front of the power unit. The braking device cooperates with the cutting unit. The lubricating oil reservoir is located below the light. The handle has a start switch, a speed control switch, and a self-locking switch. The start switch and speed control switch cooperate with the self-locking switch. The start switch is connected to the light. The cutting unit includes a chain guide plate and a chain. The chain guide plate is mounted on the power unit, and the chain is mounted on the chain guide plate and cooperates with the braking device.

[0004] Meanwhile, Chinese patent publication number CN119572915A, published on March 7, 2025, discloses an oil pumping structure for an electric saw or chainsaw, including a casing of the electric saw or chainsaw, an oil pumping structure body, and a lubricating oil passage connected to the oil pumping structure body. The casing is provided with a cavity for mounting the oil pumping structure body. The oil pumping structure body includes a first pipeline, a second pipeline, and an elastic compression pipe disposed between the first pipeline and the second pipeline. The outer wall of the elastic compression pipe is provided with a compression structure that can compress the elastic compression pipe to pump oil and a drive structure for driving the compression structure to rotate. The compression structure is provided with at least one compression wheel that cooperates with the elastic compression pipe and can squeeze the elastic compression pipe, and a rotating frame or rotating wheel for mounting the compression wheel.

[0005] Therefore, in the existing technology, lubricating oil is injected into the lubricating oil can located on the side of the machine body, and the lubricating oil is injected into the chain along the lubricating oil path, thereby achieving chain lubrication.

[0006] However, in the existing technology, when adding lubricating oil, since the mouth of the lubricating oil can faces the side of the machine body, in order to ensure that the lubricating oil falls stably into the mouth, the machine body must be laid down to the side before adding lubricating oil, so that the mouth of the can is in a vertically upward position, and then the lubricating oil can be poured into the mouth. This makes the operation of pouring lubricating oil very inconvenient. Utility Model Content

[0007] The purpose of this invention is to provide a tree saw that is easy to lubricate, allowing for convenient application of lubricating oil.

[0008] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a tree saw that is easy to lubricate, comprising a body, a motor disposed inside the body, a battery pack disposed at the tail end of the body for supplying power to the motor, a chain and chain plate disposed at the front end of the body, a lubricating oil tank disposed inside the body, and a side shell disposed on the body. The upper side of the lubricating oil tank is provided with an externally threaded oil filling port that opens towards the top of the body. An oil tank cap is threaded onto the externally threaded oil filling port. The upper side of the side shell is provided with a through hole for the externally threaded oil filling port to pass through. The lubricating oil tank is located on the side closer to the motor, and the side wall of the lubricating oil tank is provided with an arc-shaped surface close to the outer wall of the motor.

[0009] A further feature of this invention is that an observation window is provided on the side wall of the lubricating oil tank, and a side opening corresponding to the position of the observation window is provided on the side outer shell.

[0010] A further feature of this invention is that the observation window protrudes from the side wall of the lubricating oil tank and is embedded in the side opening.

[0011] A further feature of this invention is that the arc-shaped surface is parallel to the arc-shaped surface of the outer wall of the motor.

[0012] A further feature of this invention is that a gap is left between the curved surface and the outer wall of the motor.

[0013] A further feature of this invention is that a hanging ring is provided on the side of the side shell, near the lubricating oil tank.

[0014] In summary, this utility model has the following beneficial effects:

[0015] 1. The lubricating oil tank has an external threaded filling port facing upwards towards the machine body. A through-hole on the side of the outer casing allows the external threaded filling port to pass through. When lubricating oil needs to be added, simply lay the machine body flat and add lubricating oil into the external threaded filling port; there's no need to lay the machine body to the side, making lubricating oil addition more convenient. Simultaneously, the lubricating oil tank is located near the motor, and its side wall has an arc-shaped surface close to the motor's outer wall. When the motor is running, the heat emitted from the motor surface is transferred to the arc-shaped surface, increasing the heat of the lubricating oil in the tank. Since lubricating oil has optimal fluidity and lubrication effect between 70℃ and 100℃, the heat from the motor helps ensure good lubrication of the chain by the lubricating oil in the tank, ultimately achieving the reuse of motor heat.

[0016] 2. The observation window is set on the side wall of the lubricating oil tank, and the side shell has a side opening corresponding to the position of the observation window. This allows the operator to easily see the lubricating oil content in the lubricating oil tank from the outside, which is conducive to the operator adding lubricating oil in a timely manner.

[0017] 3. The observation window protrudes from the side wall of the lubricating oil tank and is embedded in the side opening. The position of the lubricating oil tank on the side shell can be positioned by the snap-fit ​​between the observation window and the side opening, which will ultimately facilitate the stable installation of the lubricating oil tank in the machine body.

[0018] 4. By making the arc surface parallel to the arc surface of the motor's outer wall, the arc surface can evenly transfer the heat from the motor's outer wall, which helps to ensure a uniform temperature in all parts of the lubricating oil tank.

[0019] 5. Since the outer wall of the motor has a high temperature when it is running, if the curved part directly touches the outer wall of the motor, it may cause the lubricating oil temperature to be too high. At this time, the curved part is parallel to the curved surface of the outer wall of the motor, so as to avoid the lubricating oil temperature from being too high and ensure that the lubricating oil is in the temperature range with optimal fluidity.

[0020] 6. The hanging ring located on the side of the outer casing, near the lubricating oil tank, allows for easy attachment of a rope, thus facilitating the use of the tree saw. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a partial exploded view of the structure of this utility model, in which the side shell is shown in an exploded view;

[0024] Figure 3 This is an exploded view of the structure of the lubricating oil tank in this utility model, in which the oil tank cover is shown in an exploded view.

[0025] In the diagram, 1. Body; 11. Motor; 12. Battery pack; 13. Chain; 14. Chain plate; 15. Side shell; 151. Through hole; 152. Side opening; 2. Lubricating oil tank; 21. External threaded oil filler port; 22. Oil tank cap; 23. Curved surface; 24. Observation window; 3. Hanging ring. Detailed Implementation

[0026] The technical solutions in the embodiments will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] A tree saw that is easy to refuel, see reference Figure 1 , Figure 2 This type of easy-to-lubricate tree saw includes a body 1, a motor 11, a battery pack 12, a chain 13, a chain plate 14, a lubricating oil tank 2, and a side shell 15. The motor 11 is installed inside the body 1, while the battery pack 12 is connected to the tail end of the body 1 and is used to power the motor 11. The chain 13 and chain plate 14 are installed at the front end of the body 1, and the lubricating oil tank 2 is installed inside the body 1. The side shell 15 is fixed to the outside of the body 1 with bolts and encloses the lubricating oil tank 2.

[0028] Reference Figure 1 , Figure 2 , Figure 3 The lubricating oil tank 2 is made of plastic material. The upper side of the lubricating oil tank 2 is integrally provided with an external threaded filling port 21 that opens towards the upper part of the machine body 1. The external threaded filling port 21 is threadedly connected to the oil tank cap 22. At the same time, the upper side of the side shell 15 is provided with a through hole 151 for the external threaded filling port 21 to pass through. The side wall of the lubricating oil tank 2 is also integrally provided with an observation window 24, and the side shell 15 is provided with a side opening 152 corresponding to the position of the observation window 24. The observation window 24 protrudes from the side wall of the lubricating oil tank 2 and is embedded in the side opening 152.

[0029] Reference Figure 1 , Figure 2 , Figure 3 The lubricating oil tank 2 is located on the side close to the motor 11, and the side wall of the lubricating oil tank 2 is integrally provided with an arc-shaped surface 23 close to the outer wall of the motor 11. The arc-shaped surface 23 is parallel to the arc surface of the outer wall of the motor 11, and there is a gap between the arc-shaped surface 23 and the outer wall of the motor 11. At the same time, a hanging ring 3 is fixed by bolts on the side of the side shell 15 and the side close to the lubricating oil tank 2.

[0030] Principle: The lubricating oil tank 2 has an external threaded filling port 21 that opens towards the top of the machine body 1. The through hole 151 of the side shell 15 allows the external threaded filling port 21 to pass through. When lubricating oil needs to be added, the machine body 1 can be laid flat to add lubricating oil into the external threaded filling port 21 without having to lay the machine body 1 on its side, which facilitates convenient lubrication. At the same time, the lubricating oil tank 2 is located on the side close to the motor 11, and the side wall of the lubricating oil tank 2 is provided with an arc-shaped surface 23 close to the outer wall of the motor 11. When the motor 11 is running, the surface of the motor 11 will dissipate heat, which can be transferred to the arc-shaped surface 23, thereby increasing the heat of the lubricating oil in the lubricating oil tank 2. Since the lubricating oil has the best fluidity and lubrication effect at 70℃ to 100℃, the heat from the motor 11 can help ensure that the lubricating oil in the lubricating oil tank 2 has a good lubrication effect on the chain 13, thus realizing the reuse of the heat from the motor 11.

Claims

1. A tree saw that is easy to lubricate, comprising a body (1), a motor (11) disposed inside the body (1), a battery pack (12) disposed at the tail end of the body (1) for supplying power to the motor (11), a chain (13) and chain plate (14) disposed at the front end of the body (1), a lubricating oil tank (2) disposed inside the body (1), and a side shell (15) disposed on the body (1), characterized in that: The upper side of the lubricating oil tank (2) is provided with an external threaded filling port (21) that opens towards the upper part of the machine body (1). The external threaded filling port (21) is threaded with an oil tank cover (22). The upper side of the side shell (15) is provided with a through hole (151) for the external threaded filling port (21) to pass through. The lubricating oil tank (2) is located on the side close to the motor (11). The side wall of the lubricating oil tank (2) is provided with an arc-shaped surface (23) close to the outer wall of the motor (11).

2. The tree saw with easy oiling according to claim 1, characterized in that: An observation window (24) is provided on the side wall of the lubricating oil tank (2), and a side opening (152) corresponding to the position of the observation window (24) is provided on the side shell (15).

3. A tree saw that is easy to oil according to claim 2, characterized in that: The observation window (24) protrudes from the side wall of the lubricating oil tank (2) and is embedded in the side opening (152).

4. A tree saw that is easy to oil according to claim 1, characterized in that: The arc-shaped surface (23) is parallel to the arc surface of the outer wall of the motor (11).

5. A tree saw that is easy to oil according to claim 1, characterized in that: A gap is left between the curved surface (23) and the outer wall of the motor (11).

6. A tree saw that is easy to oil according to claim 1, characterized in that: A hanging ring (3) is provided on the side of the side shell (15) and on the side near the lubricating oil tank (2).

Images