Hedge trimmer with noise reduction function

Abstract

The utility model relates to the technical field of hedge trimmers, in particular to a hedge trimmer with a noise reduction function, a movable knife rest is slidably mounted on a shell, a pull rod is rotatably connected with the movable knife rest, a gear set is mounted between a brushless motor and a transmission disc, a rubber sleeve is fixedly mounted on the movable knife rest, and the rubber sleeve is fixedly connected with the pull rod. A movable knife rest is installed on the shell, a movable blade is installed on the movable knife rest, a top cover is installed on the movable knife rest, rubber pads are fixedly installed on the movable knife rest and the top cover, and an attraction pad is fixedly installed on the inner side wall of the shell; the suction pad installed on the inner side wall of the shell can further absorb noise generated by operation, in the process that the movable knife rest drives the movable blade to slide, the rubber sleeve and the rubber pad between the movable knife rest and the movable blade can absorb vibration generated during sliding, collision generated in the cutting process of the movable knife rest and the movable blade is avoided, the damping effect is achieved, and the service life of the movable knife rest is prolonged. And the effect of reducing noise is achieved.

Description

Technical Field

[0001] This utility model relates to the field of hedge trimmer technology, and in particular to a hedge trimmer with noise reduction function. Background Technology

[0002] In garden hedge trimming operations, efficient and precise trimming, while ensuring both effective results and stable equipment operation, is crucial. In practical applications, hedge trimming machines typically require the following technologies:

[0003] 1. Cutting mechanism: It adopts reciprocating or rotary blades to cut off the excess parts of the hedge by high-speed movement. The former uses rapid reciprocating motion to prune branches, while the latter uses high-speed rotating blades to cut.

[0004] 2. Power mechanism: Commonly used are gasoline engines or electric motors to provide power for cutting. Gasoline engines have strong power and are suitable for pruning large areas and thick branches of hedges; electric motors have low noise and are easy to start, and are mostly used in small areas or noise-restricted areas.

[0005] 3. Transmission mechanism: such as gear or belt drive, which transmits power from the power mechanism to the cutting mechanism. Gear transmission has a large torque, ensuring stable cutting, while belt transmission can buffer and reduce shock and reduce operating noise.

[0006] Existing hedge trimmers generate significant noise during operation, posing a threat to the hearing health of operators and potentially disrupting the surrounding environment and residents' lives. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this utility model provides a hedge trimmer with noise reduction function, solving the technical problem that existing hedge trimmers generate significant noise during operation, posing a threat to the hearing health of operators and potentially interfering with the surrounding environment and residents' lives.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A hedge trimmer with noise reduction function includes a housing, a brushless motor fixedly installed inside the housing, a transmission disc rotatably installed inside the housing, a pull rod rotatably installed on the transmission disc, a button fixedly installed on the housing, a control board fixedly installed inside the housing, a battery fixedly installed inside the housing, a movable blade holder slidably installed on the housing, the pull rod and the movable blade holder rotatably connected, a gear set installed between the brushless motor and the transmission disc, a rubber sleeve fixedly installed on the movable blade holder, movable blades installed on the movable blade holder, a top cover installed on the movable blade holder, rubber pads fixedly installed on the movable blade holder and the top cover, and an attraction pad fixedly installed on the inner side wall of the housing.

[0010] Preferably, a fixed tool holder is fixedly mounted on the outer casing.

[0011] Preferred: A fixed blade is installed on the fixed blade holder.

[0012] Preferably, a threaded sleeve is rotatably mounted on the top cover.

[0013] Preferred: Threaded connection between threaded sleeve and moving tool holder.

[0014] Preferred: The fixed tool holder is threaded with a threaded post.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. During use, pressing the button will start the brushless motor via the control panel. The brushless motor will drive the transmission disc to rotate through a gear set consisting of two helical gears of different sizes. Therefore, while increasing torque, it can also reduce noise generation. The rotation of the transmission disc will cause the moving blade holder to slide back and forth by pulling the lever. The suction pad installed on the inner side wall of the housing can further absorb the noise generated during operation. During the sliding process of the moving blade holder and the moving blade, the rubber sleeve and rubber pad between the moving blade holder and the moving blade can absorb the vibration generated during sliding, avoid the collision between the moving blade holder and the moving blade during the cutting process, play a damping role, and achieve the effect of noise reduction.

[0017] 2. If a hard object is cut during use, the moving and fixed blades will be damaged. Unscrew the threaded sleeve to separate the top cover from the moving blade holder, and then replace the damaged moving blade. Unscrew the threaded post to remove and replace the lower fixed blade. Then screw the threaded sleeve and threaded post back on. This makes maintenance easier. Attached Figure Description

[0018] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0019] Figure 1 This is a structural diagram of the top cover of this utility model.

[0020] Figure 2 This is a cross-sectional structural diagram of the outer shell of this utility model.

[0021] Figure 3 This is an exploded structural diagram of the present invention.

[0022] Figure 4 This is a cross-sectional view of the moving tool holder of this utility model.

[0023] Figure 5 This is a cross-sectional view of the threaded sleeve of this utility model.

[0024] Figure 6 This is a structural diagram of the fixed tool holder of this utility model.

[0025] Legend: 1. Housing; 2. Moving tool holder; 3. Brushless motor; 4. Transmission disc; 5. Pull rod; 6. Rubber sleeve; 7. Gear set; 8. Button; 9. Control panel; 11. Battery; 12. Suction pad; 13. Top cover; 14. Rubber pad; 15. Moving blade; 16. Threaded sleeve; 17. Fixed tool holder; 18. Fixed blade; 19. Threaded post. Detailed Implementation

[0026] This application provides a hedge trimmer with noise reduction function, effectively solving the technical problem that existing hedge trimmers generate significant noise during operation, posing a threat to the hearing health of operators and potentially interfering with the surrounding environment and residents' lives. During use, pressing a button activates the control panel to start the brushless motor. The brushless motor drives the transmission disc to rotate via a gear set consisting of two helical gears of different sizes, thus increasing torque while reducing noise. The rotation of the transmission disc causes the moving blade holder to reciprocate by pulling a lever. Suction pads installed on the inner wall of the housing can... The system effectively absorbs the noise generated during operation. As the moving blade slides along with the moving blade, the rubber sleeve and rubber pad between the moving blade and the moving blade absorb the vibrations generated during sliding, preventing collisions between the moving blade and the moving blade during cutting and providing a damping effect, thus reducing noise. If a hard object is cut during use, the moving blade and the fixed blade may be damaged. Simply unscrew the threaded sleeve to separate the top cover from the moving blade, and then replace the damaged moving blade. Unscrew the threaded post to remove and replace the lower fixed blade, and then tighten the threaded sleeve and threaded post again. This system facilitates maintenance. Example

[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the technical solution in this application embodiment effectively solves the technical problem that existing hedge trimmers generate significant noise during operation, which not only threatens the hearing health of operators but also may interfere with the surrounding environment and residents' lives. The overall approach is as follows:

[0028] To address the problems existing in the prior art, this utility model provides a hedge trimmer with noise reduction function, including a housing 1, a brushless motor 3 fixedly installed inside the housing 1, a transmission disk 4 rotatably installed inside the housing 1, and a pull rod 5 rotatably installed on the transmission disk 4.

[0029] A button 8 is fixedly installed on the outer casing 1. A control board 9 is fixedly installed inside the outer casing 1. A storage battery 11 is fixedly installed inside the outer casing 1. A movable blade holder 2 is slidably installed on the outer casing 1. A pull rod 5 is rotatably connected to the movable blade holder 2. A gear set 7 is installed between the brushless motor 3 and the transmission disc 4. A rubber sleeve 6 is fixedly installed on the movable blade holder 2. A movable blade 15 is installed on the movable blade holder 2.

[0030] A top cover 13 is installed on the moving tool holder 2. A rubber pad 14 is fixedly installed on the moving tool holder 2 and the top cover 13. An attraction pad 12 is fixedly installed on the inner side wall of the outer shell 1. A fixed tool holder 17 is fixedly installed on the outer shell 1. A fixed blade 18 is installed on the fixed tool holder 17. A threaded sleeve 16 is rotatably installed on the top cover 13. The threaded sleeve 16 is threadedly connected to the moving tool holder 2. A threaded post 19 is threadedly installed on the fixed tool holder 17.

[0031] Outer shell 1: The main structure of the hedge trimmer, providing the installation base and support for other components. Inside, there is a brushless motor 3, a transmission disc 4, a control board 9, a battery 11, etc. The suction pad 12 on the inner side wall is used to absorb operating noise.

[0032] Moving blade holder 2: slides on the outer shell 1 and is rotatably connected to the pull rod 5, driving the moving blade 15 to slide and perform cutting-related operations. Through cooperation with the top cover 13, threaded sleeve 16, rubber pad 14, etc., it realizes some functions and connections. The rubber sleeve 6 and rubber pad 14 between the moving blade holder 2 and the moving blade 15 absorb vibration and reduce cutting collision noise.

[0033] Brushless motor 3: Fixed inside the housing 1, controlled by the control board 9, drives the transmission disk 4 to rotate via the gear set 7, providing power for the operation of the hedge trimmer, and is the power output component;

[0034] Transmission disc 4: Rotates inside the outer casing 1, receives power from the brushless motor 3 transmitted through the gear set 7 and rotates, pulling the pull rod 5 to make the moving tool holder 2 slide back and forth, which is a key link in power transmission;

[0035] Pull rod 5: Rotatably mounted on transmission disc 4, rotatably connected to moving blade holder 2, pulled by the rotation of transmission disc 4, driving moving blade holder 2 to reciprocate and slide, realizing the relevant transmission of cutting action;

[0036] Rubber sleeve 6: Fixed on the moving blade holder 2, located between the moving blade holder 2 and the moving blade 15, together with the rubber pad 14, absorbs the vibration generated by the moving blade holder 2 driving the moving blade 15 to slide, prevents the two from colliding during cutting, and plays a role in damping and noise reduction.

[0037] Gear set 7: Located between brushless motor 3 and transmission disk 4, it consists of two helical gears of different sizes. When transmitting power, it increases torque and reduces noise. It is a key component for power transmission and noise reduction from brushless motor 3 to transmission disk 4.

[0038] Button 8: Mounted on the housing 1, pressing it allows the control board 9 to control the start of the brushless motor 3, and is the start control operation component for the hedge trimmer;

[0039] Control board 9: Fixed inside the outer casing 1, it receives operation signals from button 8, controls the start of brushless motor 3, and controls the power output.

[0040] Battery 11: Fixed inside the outer casing 1, providing power;

[0041] Suction pad 12: Fixed to the inner wall of the outer casing 1, it absorbs the noise generated by the hedge trimmer and improves the noise reduction performance of the equipment;

[0042] Top cover 13: mounted on the moving tool holder 2, together with the moving tool holder 2, it fixes the rubber pad 14, and the threaded sleeve 16 is rotatably mounted on it, playing a connecting auxiliary role in the realization of the equipment structure and function;

[0043] Rubber pad 14: It is fixed by the moving blade holder 2 and the top cover 13 together, and together with the rubber sleeve 6, it absorbs the vibration generated by the moving blade holder 2 moving the moving blade 15 to slide, and plays a role in shock absorption and noise reduction.

[0044] Moving blade 15: It is mounted on the moving blade holder 2 and participates in cutting-related operations as it is driven by the moving blade holder 2. It may be damaged and needs to be replaced when cutting hard objects.

[0045] Threaded sleeve 16: Rotatably mounted on top cover 13, threadedly connected to moving tool holder 2. Unscrewing it allows top cover 13 to be separated from moving tool holder 2, facilitating the replacement of damaged moving blade 15. It is used for disassembly and connection of components during equipment maintenance.

[0046] Fixed tool holder 17: Fixed on the outer shell 1, fixed blade 18 is mounted on it, and threaded post 19 is threadedly mounted on the fixed tool holder 17, providing a mounting base for fixed blade 18 and threaded post 19, and playing a connecting and fixing role in the equipment structure;

[0047] Fixed blade 18: Mounted on fixed blade holder 17, it may be damaged when cutting hard objects and needs to be replaced by unscrewing threaded post 19;

[0048] Threaded post 19: Threaded onto the fixed tool holder 17. Unscrewing it allows the fixed blade 18 to be removed and replaced. It is used for disassembling and fixing the fixed blade 18 during equipment maintenance.

[0049] Working principle:

[0050] In the first step, when using the device, pressing button 8 will start the brushless motor 3 controlled by the control board 9. The brushless motor 3 will drive the transmission disk 4 to rotate through the gear set 7. The gear set 7 consists of two helical gears of different sizes, which increases torque while reducing noise. The rotation of the transmission disk 4 will cause the moving blade holder 2 to slide back and forth by pulling the lever 5. The suction pad 12 installed on the inner wall of the outer shell 1 can further absorb the noise generated during operation. During the sliding process of the moving blade holder 2 driving the moving blade 15, the rubber sleeve 6 and rubber pad 14 between the moving blade holder 2 and the moving blade 15 can absorb the vibration generated during sliding, avoid the collision between the moving blade holder 2 and the moving blade 15 during the cutting process, play a damping role, and achieve the effect of noise reduction.

[0051] The second step is that if a hard object is cut during use, the moving blade 15 and the fixed blade 18 will be damaged. Unscrew the threaded sleeve 16 to separate the top cover 13 from the moving blade holder 2, and then replace the damaged moving blade 15. Unscrew the threaded post 19 to remove the lower fixed blade 18 for replacement, and then screw the threaded sleeve 16 and the threaded post 19 back on. This achieves the effect of easy maintenance.

[0052] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A hedge trimmer with noise reduction function, comprising a housing (1), wherein a brushless motor (3) is fixedly installed inside the housing (1), a transmission disc (4) is rotatably installed inside the housing (1), a pull rod (5) is rotatably installed on the transmission disc (4), a button (8) is fixedly installed on the housing (1), a control board (9) is fixedly installed inside the housing (1), and a storage battery (11) is fixedly installed inside the housing (1), characterized in that, A movable blade holder (2) is slidably mounted on the outer shell (1). The pull rod (5) and the movable blade holder (2) are rotatably connected. A gear set (7) is installed between the brushless motor (3) and the transmission disk (4). A rubber sleeve (6) is fixedly mounted on the movable blade holder (2). A movable blade (15) is mounted on the movable blade holder (2). A top cover (13) is mounted on the movable blade holder (2). A rubber pad (14) is fixedly mounted on the movable blade holder (2) and the top cover (13). An attraction pad (12) is fixedly mounted on the inner wall of the outer shell (1).

2. A hedge trimmer with noise reduction function as described in claim 1, characterized in that, A fixed tool holder (17) is fixedly installed on the outer shell (1).

3. A hedge trimmer with noise reduction function as described in claim 2, characterized in that, The fixed blade (18) is mounted on the fixed blade holder (17).

4. A hedge trimmer with noise reduction function as described in claim 1, characterized in that, A threaded sleeve (16) is rotatably mounted on the top cover (13).

5. A hedge trimmer with noise reduction function as described in claim 4, characterized in that, The threaded sleeve (16) and the moving tool holder (2) are threadedly connected.

6. A hedge trimmer with noise reduction function as described in claim 2, characterized in that, The fixed tool holder (17) is threaded with a threaded post (19).

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