Handheld brushless speed regulation lithium battery multi-purpose saw

Abstract

The utility model relates to a handheld brushless speed regulation lithium battery multipurpose saw, which belongs to the technical field of cutting tools, and comprises a shell, the top of the shell is fixedly connected with a mounting plate, and the front surface of the mounting plate is provided with a protection component; the protection assembly comprises two side plates, and the two side plates are movably connected with the two acting sides of the mounting plate. According to the handheld brushless speed-regulating lithium battery multi-purpose saw, when the protective cover is used for protection, the two side plates are located on the left side and the right side of the mounting plate through the two positioning blocks after the mounting groove is located in the mounting plate, the column body is located in the two sliding holes and extends into the mounting plate, and the rotating column is rotated to drive the conical rod to contract; according to the electric chain saw, the two limiting blocks move away from each other under the action of the first springs, meanwhile, due to the existence of the shape of the conical rod, the two limiting blocks move upwards under extrusion, the protective cover is limited in the mounting plate, it is guaranteed that the protective cover is better in protection effect, and the risk that workers are injured when using the electric chain saw is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting tools, in particular to a handheld brushless speed-regulating lithium-powered multi-purpose saw. Background Art

[0002] A brushless saw is a modern power tool that uses a brushless motor compared to traditional brushed saws. This motor does not require brushes, so it can reduce friction and wear, and improve the efficiency and life of the motor. At the same time, brushless saws can also provide more stable power and speed, making them ideal cutting tools for woodworking, decoration and other industries. Brushless saws usually have a compact design and light weight, making operation more convenient and comfortable. In addition, brushless saws can also be equipped with different saw blades to suit different cutting needs. In short, a brushless saw is an efficient, reliable and versatile power tool that can improve work efficiency and ensure cutting quality.

[0003] A common electric chain saw includes a guide plate cover, a guide plate and a chain. A motor is arranged in the guide plate cover. The rear end of the guide plate is arranged in the guide plate cover so as to be movable forward and backward. The rear end of the chain is connected to the power of the motor, and the front end of the chain is wrapped around the front end of the guide plate. That is, when the motor is working, it can drive the chain to rotate, thereby sawing trees and the like.

[0004] However, the existing electric chain saw has a poor protective effect on the handle during cutting, and branches are prone to flying and injuring the arms during the sawing process, thereby causing injuries to workers. Therefore, a handheld brushless speed-adjustable lithium-powered multi-purpose saw is proposed to solve the above problem. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a handheld brushless speed-regulating lithium-powered multi-purpose saw, which has the advantages that when the device is in use, the electric chain saw has a good protective effect when sawing, and the risk of injury to workers is reduced. It solves the problem that the handle of the existing electric chain saw has a poor protective effect, and branches are easily thrown off and injure the arms during the sawing process, thereby causing injuries to workers.

[0006] To achieve the above object, the utility model provides the following technical solution: a handheld brushless speed-adjustable lithium-powered multi-purpose saw, comprising a housing, a mounting plate is fixedly connected to the top of the housing, and a protective component is arranged on the front of the mounting plate;

[0007] The protective assembly includes two side plates, and the two side plates are movably connected to the two sides of the mounting plate, the insides of the two side plates are fixedly connected to columns, the insides of the two columns are rotatably connected to rotating columns, the opposite sides of the two rotating columns are threadedly connected to conical rods, the opposite sides of the two conical rods are fixedly connected to first springs, the outer surfaces of the two first springs are fixedly connected to fixing columns, the outer surfaces of the two fixing columns are fixedly connected to second springs, the outer surfaces of the two second springs are fixedly connected to limiting blocks, and the interior of the mounting plate is movably connected to a protective cover.

[0008] Furthermore, a mounting groove is provided inside the mounting plate, and the protective cover is located inside the mounting plate through the mounting groove. The longitudinal section of the protective cover is an L-shaped plate, and the transverse interface of the protective cover is an arc-shaped plate.

[0009] Furthermore, the mounting plate is in the shape of an H-shaped plate, and positioning blocks are fixedly connected to both left and right sides of the mounting plate, and both side plates are located on the left and right sides of the mounting plate through the positioning blocks.

[0010] Furthermore, a through hole is provided inside the column, and the rotating column rotates inside the column through the through hole. A dial is provided on the side away from the rotating column. A threaded blind hole is provided inside the rotating column, and threads are provided on the outer surfaces of the two tapered rods.

[0011] Furthermore, a sliding hole is provided inside the mounting plate, and the two columns are located inside the mounting plate through the sliding hole. A sliding groove is provided inside the two columns, and the two limit blocks slide inside the two columns through the sliding groove.

[0012] Furthermore, the two fixing columns are fixedly connected to the inner side walls of the two columns, the interiors of the two limiting blocks are provided with conical holes, and the two conical rods are movable inside the two limiting blocks through the conical holes.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] 1. For the handheld brushless speed-adjustable lithium-electric multi-purpose saw, when the protective cover is used for protection, it is located inside the mounting plate through the mounting groove. At this time, the two side panels are located on the left and right sides of the mounting plate through the two positioning blocks, and the column is located inside the two sliding holes and extends to the inside of the mounting plate. The rotating column is rotated to drive the tapered rod to contract, so that the two limit blocks move away from each other under the action of the first spring, and at the same time, due to the shape of the tapered rod, the two limit blocks move upward under being squeezed, and the protective cover is limited inside the mounting plate, ensuring that the protective cover has a better protective effect and reducing the risk of injury to workers when using electric chain saws.

[0015] 2. The handheld brushless speed-adjustable lithium-powered multi-purpose saw is provided with a protective component so that when the electric chain saw is in use, the protective cover is located on the top of the saw blade. The flying branches generated during the sawing process can be blocked by the protective cover to ensure the safety of the staff themselves, and the protective cover can be replaced in time after being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the main cross-sectional view of the structure of the utility model;

[0017] Figure 2 It is a three-dimensional diagram of the structure of the utility model;

[0018] Figure 3 It is a partial top view of the structure of the utility model;

[0019] Figure 4 It is a partial side view of the structure of the utility model.

[0020] In the figure: 1. housing; 2. mounting plate; 3. positioning block; 4. side plate; 5. sliding hole; 6. column; 7. rotating column; 8. tapered rod; 9. first spring; 10. fixed column; 11. second spring; 12. limit block; 13. mounting groove; 14. protective cover. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 In this embodiment, a handheld brushless speed-adjustable lithium-powered multi-purpose saw comprises a housing 1, a mounting plate 2 is fixedly connected to the top of the housing 1, and a protective component is arranged on the front of the mounting plate 2;

[0023] The protective component includes two side panels 4, and the two side panels 4 are movably connected to the two sides of the mounting plate 2. The mounting plate 2 is in the shape of an H-shaped plate. The left and right sides of the mounting plate 2 are fixedly connected with positioning blocks 3. The two side panels 4 are located on the left and right sides of the mounting plate 2 through the positioning blocks 3.

[0024] The inside of the two side panels 4 are fixedly connected with a column 6, the inside of the two columns 6 are rotatably connected with a rotating column 7, the inside of the column 6 is provided with a through hole, and the rotating column 7 rotates inside the column 6 through the through hole, and the inside of the mounting plate 2 is provided with a sliding hole 5, and the two columns 6 are located inside the mounting plate 2 through the sliding hole 5.

[0025] The two rotating columns 7 have tapered rods 8 threadedly connected to opposite sides thereof, and a dial is provided on the separated side of the rotating columns 7. The rotating columns 7 have threaded blind holes formed inside, and the outer surfaces of the two tapered rods 8 have threads formed thereon.

[0026] The first springs 9 are fixedly connected to the opposite sides of the two conical rods 8 , the outer surfaces of the two first springs 9 are fixedly connected to the fixing columns 10 , and the two fixing columns 10 are fixedly connected to the inner side walls of the two columns 6 .

[0027] The outer surfaces of the two fixed columns 10 are fixedly connected to the second springs 11, the outer surfaces of the two second springs 11 are fixedly connected to the limiting blocks 12, the interiors of the two limiting blocks 12 are provided with conical holes, the two conical rods 8 move inside the two limiting blocks 12 through the conical holes, the interiors of the two columns 6 are provided with sliding grooves, and the two limiting blocks 12 slide inside the two columns 6 through the sliding grooves.

[0028] A protective cover 14 is movably connected inside the mounting plate 2. A mounting groove 13 is provided inside the mounting plate 2. The protective cover 14 is located inside the mounting plate 2 through the mounting groove 13. The longitudinal section of the protective cover 14 is an L-shaped plate, and the transverse interface of the protective cover 14 is an arc-shaped plate.

[0029] In this embodiment, by providing a protective component, when the electric chain saw is in use, the protective cover 14 is located on the top of the saw blade, and branches flying during the sawing process can be blocked by the protective cover 14 to ensure the safety of the workers themselves, and the protective cover 14 can be replaced in time if damaged.

[0030] The working principle of the above embodiment is:

[0031] The handheld brushless speed-adjustable lithium-electric multi-purpose saw, when the protective cover 14 is used for protection, is located inside the mounting plate 2 via the mounting groove 13. At this time, the two side panels 4 are located on the left and right sides of the mounting plate 2 through the two positioning blocks 3, and the column 6 is located inside the two sliding holes 5 and extends to the inside of the mounting plate 2. The rotating column 7 is rotated to drive the tapered rod 8 to contract, so that the two limit blocks 12 move away from each other under the action of the first spring 9, and at the same time, due to the shape of the tapered rod 8, the two limit blocks 12 move upward under being squeezed, and the protective cover 14 is limited inside the mounting plate 2, ensuring that the protective cover 14 has a better effect when performing protection, and reducing the risk of injury to workers when using the electric chain saw.

[0032] It should be noted that the standard parts used in the application can be purchased from the market, special-shaped parts can be customized according to the description in the specification and drawings, and the specific connection methods of each part adopt mature bolts, rivets, welding, etc. in the prior art, and conventional means. Machinery, parts and equipment all adopt conventional models in the prior art; plus the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A handheld brushless speed-adjustable lithium-powered multi-purpose saw, comprising a housing (1), characterized in that: The top of the housing (1) is fixedly connected to a mounting plate (2), and the front of the mounting plate (2) is provided with a protective component; The protective assembly comprises two side plates (4), the two side plates (4) are movably connected to the two sides of the mounting plate (2), the insides of the two side plates (4) are fixedly connected to the columns (6), the insides of the two columns (6) are rotatably connected to the rotating columns (7), the opposite sides of the two rotating columns (7) are threadedly connected to the conical rods (8), the opposite sides of the two conical rods (8) are fixedly connected to the first springs (9), the outer surfaces of the two first springs (9) are fixedly connected to the fixing columns (10), the outer surfaces of the two fixing columns (10) are fixedly connected to the second springs (11), the outer surfaces of the two second springs (11) are fixedly connected to the limiting blocks (12), and the inside of the mounting plate (2) is movably connected to the protective cover (14).

2. A handheld brushless speed-adjustable lithium-electric multi-purpose saw according to claim 1, characterized in that: The mounting plate (2) is provided with a mounting groove (13) inside, and the protective cover (14) is located inside the mounting plate (2) through the mounting groove (13). The longitudinal section of the protective cover (14) is an L-shaped plate, and the transverse interface of the protective cover (14) is an arc-shaped plate.

3. A handheld brushless speed-adjustable lithium-electric multi-purpose saw according to claim 1, characterized in that: The mounting plate (2) is in the shape of an H-shaped plate, and positioning blocks (3) are fixedly connected to the left and right sides of the mounting plate (2), and the two side plates (4) are located on the left and right sides of the mounting plate (2) through the positioning blocks (3).

4. A handheld brushless speed-adjustable lithium-electric multi-purpose saw according to claim 1, characterized in that: The column (6) has a through hole inside, the rotating column (7) rotates inside the column (6) through the through hole, a dial is provided on the side away from the rotating column (7), a threaded blind hole is provided inside the rotating column (7), and threads are provided on the outer surfaces of the two tapered rods (8).

5. The handheld brushless speed-adjustable lithium-electric multi-purpose saw according to claim 1, characterized in that: A sliding hole (5) is provided inside the mounting plate (2), and the two columns (6) are both located inside the mounting plate (2) through the sliding hole (5). A sliding groove is provided inside the two columns (6), and the two limit blocks (12) slide inside the two columns (6) through the sliding groove.

6. A handheld brushless speed-adjustable lithium-electric multi-purpose saw according to claim 1, characterized in that: The two fixing columns (10) are fixedly connected to the inner side walls of the two column bodies (6), the two limiting blocks (12) are provided with conical holes inside, and the two conical rods (8) are movable inside the two limiting blocks (12) through the conical holes.

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