Portable lithium battery chain saw

Abstract

The utility model discloses a portable lithium battery chain saw which comprises a cutting assembly, the cutting assembly comprises a shell, a mounting groove is formed in one side of the shell, a brushless motor is arranged on the inner wall of the shell, one end of the brushless motor is connected with a connecting shaft, one end of the connecting shaft rotatably penetrates through the shell, and a driving gear is detachably arranged at one end of the connecting shaft. The driving gear is located in the mounting groove, two sets of fixing frames are fixedly arranged on the inner wall of one side of the mounting groove through welding, a guide plate is detachably mounted through the fixing frames, open holes matched with the fixing frames are formed in one end of the guide plate, a saw blade is rotatably arranged on the outer wall of the guide plate, and one end of the saw blade is connected with the driving gear. A control handle is connected to one side of the shell, a start button is arranged on one side of the control handle, a grip is fixedly arranged on the outer wall of one side of the shell through bolts, a cover plate is fixedly arranged on the outer wall of one side of the shell through bolts, the cover plate is matched with the mounting groove, and a spraying assembly used for dedusting and cooling is connected to one side of the shell.

Description

Technical Field

[0001] The utility model relates to the technical field of chain saws, in particular to a portable lithium-electric chain saw. Background Art

[0002] Chain saws, also known as oil saws, are portable saws powered by gasoline engines. They are mainly used for logging and timber harvesting. Their working principle is to cut by the lateral movement of the staggered L-shaped blades on the saw chain. Chain saws are generally divided into motorized chain saws and non-motorized chain saws. In order to increase the environment during use, existing chain saws are mostly powered by lithium batteries. Lithium-powered chain saws have the advantages of high power, low vibration, high sawing efficiency and low logging cost.

[0003] After searching, the Chinese patent application number 201920063150.5 discloses a portable lithium-ion chain saw, including a storage box, a brake motor and a stepper motor. A first handle is fixed at the end of the storage box, and a switch is installed inside the first handle. At the same time, a second handle is fixed on the upper surface of the storage box, a battery pack is installed inside the storage box, and a brake motor is arranged inside the storage box. A saw chain is arranged on the outside of the first gear, and a support plate is installed inside the saw chain. At the same time, a connecting rod is installed in the middle position of the support plate, and the end of the connecting rod is connected to one end of the lead screw, and a support wheel is installed on the other end of the lead screw. A mounting plate is fixed inside the storage box, and a limiting shaft is installed at the bottom of the mounting plate, and a second gear is arranged on the side of the limiting shaft. The portable lithium-electric chain saw in the above patent has the following shortcomings: the device is not equipped with a water spray device when in use, and cannot spray the cutting area. A large amount of dust will be generated during the cutting process, and the impact of dust splashing will cause cutting errors. At the same time, the lack of water lubrication will cause the saw blade to overheat and accelerate wear during cutting. Utility Model Content

[0004] The utility model aims to solve the shortcomings of the prior art and proposes a lightweight lithium-electric chain saw.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A portable lithium-ion chain saw comprises a cutting assembly, wherein the cutting assembly comprises a shell, a mounting groove is provided on one side of the shell, a brushless motor is arranged on the inner wall of the shell, one end of the brushless motor is connected to a connecting shaft, one end of the connecting shaft can be rotatably arranged to penetrate the shell, one end of the connecting shaft is detachably provided with a driving gear, the driving gear is located in the mounting groove, a fixing frame is fixedly provided on the inner wall of one side of the mounting groove by welding, two groups of fixing frames are provided, a guide plate is detachably installed through the fixing frame, an opening matched with the fixing frame is provided on one end of the guide plate, a saw blade is rotatably provided on the outer wall of the guide plate, one end of the saw blade is connected to the driving gear, a control handle is connected to one side of the shell, a start button is provided on one side of the control handle, a handle is fixedly provided on the outer wall of one side of the shell by bolts, a cover plate is fixedly provided on the outer wall of one side of the shell by bolts, the cover plate is matched with the mounting groove, and a spray assembly for dust removal and cooling is connected to one side of the shell.

[0007] As a further solution of the utility model: the spray assembly includes a water storage box, which is fixed to the outer wall of one side of the shell by bolts, a water spray motor is connected to one side of the water storage box, a spray head is detachably provided on one side of the water spray motor, a water inlet is opened on the top of the water storage box, and a sealing plug is provided on one side of the water inlet.

[0008] As a further solution of the utility model: a heat dissipation port is provided on one side of the shell, and the heat dissipation port is provided in multiple groups. A filter screen is detachably installed on the outer wall of one side of the shell, and the filter screen is adapted to the heat dissipation port.

[0009] As a further solution of the utility model: a connector is connected to the bottom of the shell, the connector is provided with two sets of fixing grooves, a battery is arranged on one side of the connector, a fixing block adapted to the fixing groove is arranged on the top of the battery, and a status light is connected to one side of the battery.

[0010] As a further solution of the utility model: a charging port is provided on one side of the battery.

[0011] As a further solution of the utility model: a power-off switch is rotatably connected to one side of the shell, and the power-off switch is located on one side of the handle.

[0012] As a further solution of the utility model: an opening is arranged on the top of the shell, a funnel is arranged through the opening, and the bottom position of the funnel is adapted to the saw blade.

[0013] As a further solution of the utility model: a power switch is connected to one side of the battery.

[0014] The beneficial effects of the utility model are:

[0015] The utility model provides a water spray motor and a spray head to transport and spray water in a water storage box. By spraying water on the cutting position, the saw blade can be cooled and lubricated at the same time, thereby avoiding continuous dry friction to accelerate the wear of the saw blade and reduce the service life. Spraying can avoid dust splashing at the cutting position, thereby avoiding the situation where dust splashing affects observation and causes cutting errors.

[0016] Lubricating oil can be added to the saw blade through a funnel that is arranged at the position of the saw blade. The wear of the saw blade can be reduced by increasing lubrication, thereby increasing the service life and increasing the anti-rust effect.

[0017] By providing a power switch connected to the battery, the battery can be turned off in an emergency, disconnecting the power supply of the device to achieve an emergency stop and avoid harm to the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the main viewing angle of the utility model.

[0019] Figure 2 It is a structural schematic diagram of the energy supply part of the utility model.

[0020] Figure 3 It is a structural schematic diagram of the cutting part of the utility model.

[0021] Figure 4 It is a structural schematic diagram of the driving part of the utility model.

[0022] In the figure: 1-shell, 2-handle, 3-funnel, 4-water spray motor, 5-saw blade, 6-guide plate, 7-spray head, 8-water storage box, 9-power off switch, 10-status light, 11-battery, 12-power switch, 13-connector, 14-control handle, 15-cover, 16-filter, 17-charging port, 18-heat dissipation port, 19-drive gear, 20-fixed frame, 21-connecting shaft, 22-mounting slot, 23-brushless motor. DETAILED DESCRIPTION

[0023] The technical solution of the utility model is further described in detail below in conjunction with specific implementation methods.

[0024] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention. Embodiment 1:

[0025] Lightweight lithium-ion chainsaws, such as Figure 1-4As shown, the cutting assembly includes a housing 1, a mounting groove 22 is provided on one side of the housing 1, a brushless motor 23 is provided on the inner wall of the housing 1, one end of the brushless motor 23 is connected to a connecting shaft 21, one end of the connecting shaft 21 can rotate through the housing 1, one end of the connecting shaft 21 is detachably provided with a driving gear 19, the driving gear 19 is located in the mounting groove 22, a fixing frame 20 is fixedly provided on the inner wall of one side of the mounting groove 22 by welding, and the fixing frame 20 is provided with two groups, through the fixing frame 20 A guide plate 6 is detachably installed, one end of the guide plate 6 is provided with an opening matched with the fixing frame 20, a saw blade 5 is rotatably provided on the outer wall of the guide plate 6, one end of the saw blade 5 is connected to the driving gear 19, a control handle 14 is connected to one side of the shell 1, a start button is provided on one side of the control handle 14, a handle 2 is fixed to the outer wall of one side of the shell 1 by bolts, a cover plate 15 is fixed to the outer wall of one side of the shell 1 by bolts, the cover plate 15 is matched with the mounting groove 22, and a spray assembly for dust removal and cooling is connected to one side of the shell 1.

[0026] When in use, remove the cover 15, install the saw blade 5 on the guide plate 6, and then install the guide plate 6 on the fixing frame 20, tighten the bolts to complete the fixation, and after installation, connect one end of the saw blade 5 to the driving gear 19 to complete the installation of the saw blade 5. After installation, put the cover 15 back. When cutting, hold the handle and the control handle 14 with both hands respectively to operate, and after adjusting to the appropriate position, press the start button to drive the connecting shaft 21 and the driving gear 19 to rotate through the brushless motor 23, thereby driving the saw blade 5 to rotate at high speed to cut the position that needs to be cut.

[0027] The spray assembly includes a water storage box 8, which is fixed to the outer wall of one side of the shell 1 by bolts. A water spray motor 4 is connected to one side of the water storage box 8, and a spray head 7 is detachably provided on one side of the water spray motor 4. A water inlet is opened on the top of the water storage box 8, and a sealing plug is provided on one side of the water inlet.

[0028] When in use, remove the sealing plug and add water to the water storage box 8 through the water filling port. After adding, cover the sealing plug again to prevent foreign matter from entering the water storage box 8. When cutting, start the water spray motor 4 to transport the water in the water storage box 8 and spray it through the nozzle 7 to spray the cutting position. While cooling the saw blade 5, it can also lubricate the cutting area to avoid continuous dry friction that accelerates the wear of the saw blade 5 and reduces its service life. Spraying can avoid dust splashing at the cutting area, and can avoid dust splashing that affects observation and causes cutting errors. Different types of nozzles 7 can be replaced for use as needed.

[0029] To prevent foreign matter from entering the device, Figure 2As shown, a heat dissipation opening 18 is provided on one side of the housing 1 , and the heat dissipation opening 18 is provided in multiple groups. A filter screen 16 is detachably mounted on the outer wall of one side of the housing 1 , and the filter screen 16 is adapted to the heat dissipation opening 18 .

[0030] When in use, the heat generated during operation of the device can be dissipated through the heat dissipation opening 18, and the filter 16 can prevent foreign matter from entering the device through the heat dissipation opening 18 to cause circuit problems and affect normal operation.

[0031] In order to provide energy, Figure 1 , 3 As shown, a connector 13 is connected to the bottom of the shell 1, and the connector 13 has two sets of fixing grooves. A battery 11 is arranged on one side of the connector 13, and a fixing block adapted to the fixing groove is arranged on the top of the battery 11. A status light 10 is connected to one side of the battery 11.

[0032] When in use, the battery 11 can be installed by sliding the fixing block into the fixing slot. After installation, the battery 11 is used to supply energy for normal operation of the device. The remaining power can be observed by switching the status light 10 to different colors according to the power level.

[0033] To replenish the battery, Figure 2 As shown, a charging port 17 is provided on one side of the battery 11 .

[0034] When in use, when the battery 11 is low in power, it can be charged by connecting to a charger through the charging port 17. The connection with the charger is magnetic, which can avoid the situation where the traditional jack-type charging port is easily clogged by dust and cannot be charged.

[0035] To prevent your arm from being cut by rebounding during cutting, Figure 1 As shown, a power-off switch 9 is rotatably connected to one side of the housing 1 , and the power-off switch 9 is located at one side of the handle 2 .

[0036] When in use, the power-off switch 9 is connected to the motor inside the device through a line. The device can be controlled to operate normally or stop operating by turning the power-off switch 9. When cutting, the power-off switch 9 is turned to the side close to the arm. The hand is shielded and protected by the guard plate design at one end of the power-off switch 9. When rebound occurs during cutting and causes the device to bounce upward, the arm presses the power-off opening 9 to rotate another time to stop the device and complete an emergency stop, thereby preventing the device from bouncing up and injuring the operator.

[0037] For lubrication, such as Figure 1 , 3 As shown, the top of the housing 1 is provided with an opening, a funnel 3 is provided through the opening, and the bottom position of the funnel 3 is adapted to the saw blade 5 .

[0038] When in use, for a long time, it is necessary to add lubricating oil to the saw blade 5 and the guide plate 6 to reduce wear during operation and prevent rust. The lubricating oil is poured into the funnel 3, and the lubricating oil drips onto the saw blade 5 through the funnel 3. The lubrication is completed by the saw blade 5 penetrating into the guide plate 6. The rotation of the saw blade 5 and the dripping of the lubricating oil can quickly complete the lubrication of the entire saw blade 5. Embodiment 2:

[0039] For further security, refer to Figure 1 , a portable lithium-electric chain saw, this embodiment makes the following improvements compared to the embodiment 1: a power switch 12 is connected to one side of the battery 11.

[0040] When in use, the power switch 12 is connected to the battery 11. The power switch 12 can be used to control the normal power supply and stop power supply of the battery 11. In case of an unexpected situation, the power switch 12 can be pressed to disconnect the power supply, thereby stopping the device in an emergency to avoid injury to the operator and further increase safety.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A portable lithium-electric chain saw, comprising a cutting assembly, characterized in that: The cutting assembly comprises a housing (1), a mounting groove (22) is provided on one side of the housing (1), a brushless motor (23) is provided on the inner wall of the housing (1), one end of the brushless motor (23) is connected to a connecting shaft (21), one end of the connecting shaft (21) is rotatably arranged to penetrate the housing (1), one end of the connecting shaft (21) is detachably provided with a driving gear (19), the driving gear (19) is located in the mounting groove (22), a fixing frame (20) is fixedly provided on the inner wall of one side of the mounting groove (22) by welding, and the fixing frame (20) is provided with at least two groups, and the fixing frame (20) is detachably provided with a driving gear (19) on the inner wall of one side of the mounting groove (22). A guide plate (6) is provided, one end of the guide plate (6) is provided with an opening matched with the fixing frame (20), a saw blade (5) is rotatably provided on the outer wall of the guide plate (6), one end of the saw blade (5) is connected to the driving gear (19), one side of the housing (1) is connected to a control handle (14), one side of the control handle (14) is provided with a start button, a grip (2) is fixedly provided on the outer wall of one side of the housing (1) by bolts, a cover plate (15) is fixedly provided on the outer wall of one side of the housing (1) by bolts, the cover plate (15) is matched with the mounting groove (22), and one side of the housing (1) is connected to a spray assembly for dust removal and cooling.

2. The portable lithium-electric chain saw according to claim 1, characterized in that: The spray assembly comprises a water storage box (8), the water storage box (8) being fixed to an outer wall of one side of the housing (1) by means of bolts, a water spray motor (4) being connected to one side of the water storage box (8), a spray head (7) being detachably provided on one side of the water spray motor (4), a water inlet being provided at the top of the water storage box (8), and a sealing plug being provided on one side of the water inlet.

3. The portable lithium-electric chain saw according to claim 1, characterized in that: A heat dissipation opening (18) is provided on one side of the shell (1), and a plurality of heat dissipation openings (18) are provided. A filter screen (16) is detachably mounted on an outer wall of one side of the shell (1), and the filter screen (16) is adapted to fit the heat dissipation opening (18).

4. The portable lithium-electric chain saw according to claim 1, characterized in that: The bottom of the housing (1) is connected to a connector (13), the connector (13) is provided with two sets of fixing grooves, a storage battery (11) is arranged on one side of the connector (13), a fixing block adapted to the fixing groove is arranged on the top of the storage battery (11), and a status light (10) is connected to one side of the storage battery (11).

5. The portable lithium-electric chain saw according to claim 4, characterized in that: A charging port (17) is provided on one side of the storage battery (11).

6. The portable lithium-electric chain saw according to claim 1, characterized in that: A power-off switch (9) is rotatably connected to one side of the housing (1), and the power-off switch (9) is located on one side of the handle (2).

7. The portable lithium-electric chain saw according to claim 1, characterized in that: The top of the housing (1) is provided with an opening, a funnel (3) is provided through the opening, and the bottom position of the funnel (3) is adapted to fit the saw blade (5).

8. The portable lithium-electric chain saw according to claim 4, characterized in that: One side of the storage battery (11) is connected to a power switch (12).

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