Pruning machine
By installing a spray nozzle and air pipe system on the pruning machine, impurities in the crevices are removed using gas and water flow, solving the problems of reduced efficiency and shortened lifespan caused by wear in traditional pruning machines, and achieving efficient cleaning and protection of the blades.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO CHEERY GARDEN TOOLS
- Filing Date
- 2025-02-28
- Publication Date
- 2026-04-17
AI Technical Summary
During operation, small branches or leaves can get stuck in the gap between the moving and stationary blades of a traditional pruning machine, causing wear, reducing cutting efficiency and shortening its service life.
A pruning machine with a nozzle and an air pipe was designed. The nozzle is installed on the outer periphery of the working blade. The nozzle is driven by a drive assembly to move along the length of the support. The air pipe blows gas and water into the working blade to remove impurities in the gaps and prevent the blade from wearing out.
It effectively removes impurities from crevices, protects the blade edge, maintains the cutting efficiency and lifespan of the pruning machine, and improves cleanliness.
Smart Images

Figure CN224124717U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of garden tool technology, and in particular to a pruning machine. Background Technology
[0002] A pruning machine is a garden power tool used to trim tree branches. The main structure of a traditional pruning machine includes a power chamber with a drive motor, working blades, and a handle. The working blades consist of a moving blade and a stationary blade. The moving blade is connected to the drive motor through a transmission mechanism. When working, the user holds the handle, and after the drive motor starts, the moving blade performs a linear reciprocating motion, interacting with the stationary blade to cut the branches. When the working blade of the pruning machine is cutting, small branches or leaves may get stuck in the gap between the moving blade and the stationary blade. After the pruning machine works again, the impurities located between the moving blade and the stationary blade will wear down the cutting edge of the moving blade or the stationary blade, reducing the cutting efficiency of the pruning machine and shortening its service life. Utility Model Content
[0003] The purpose of this invention is to provide a pruning machine that addresses the shortcomings and deficiencies of existing technologies.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] The device includes a power chamber and a working component. One end of the working component is located on one side of the power chamber. The working component includes a working blade and a support. The working blade is located inside the support. A mounting base is placed on the support. A nozzle is provided on the mounting base. An air pipe is connected to the side wall of the nozzle. The air pipe extends into the power chamber at the end away from the nozzle. The nozzle has an air outlet facing the working blade. A drive assembly is provided on the support along its length. The drive assembly can drive the mounting base to reciprocate along the length of the support.
[0006] Preferably, the driving assembly includes a slider, a guide rod, and a screw. The screw is placed along the length of the bracket. The guide rod is parallel to the screw. The screw is threaded around its periphery and connected to the slider. The slider reciprocates on the guide rod. One end of the screw is inserted into the power chamber, and the power chamber drives the screw to rotate.
[0007] Preferably, the nozzle is annular and located on the outer periphery of the working blade.
[0008] Preferably, the air outlet has multiple outlets, and the multiple air outlets are evenly located on the inner circumference of the nozzle.
[0009] Preferably, the air tube is a threaded tube and is wound around the periphery of the guide rod.
[0010] Preferably, a water pipe is connected to the side wall of the air pipe, and the other end of the water pipe extends into the power chamber.
[0011] Preferably, a one-way valve is inserted into the water pipe.
[0012] In summary, this application includes at least one of the following beneficial technical effects:
[0013] 1. After the pruning machine has been working for a period of time, impurities will get stuck in the gap between the moving blade and the stationary blade. Then, the power chamber drives the screw to rotate. With the screw and the slider in mutual thread engagement, the slider moves along the length of the support, thereby driving the nozzle to move and at the same time, air is introduced into the air pipe. Then, the air flows into the nozzle and is sprayed out from multiple air outlets, blowing towards the working blade, thereby blowing out the impurities in the gap between the moving blade and the stationary blade, so that the blades of the moving blade or the stationary blade are not damaged, and the service life of the pruning machine remains unchanged.
[0014] 2. Because the trachea is a spiral tube and is wrapped around the periphery of the guide rod, the trachea will not come into contact with the working blade and be cut when the slider moves.
[0015] 3. When gas is supplied from the air pipe to the nozzle, water is supplied from the power chamber to the water pipe and flows into the air pipe. The water is then sprayed onto the working blade through the air outlet, thereby cleaning the working blade. Under the blowing of the air pipe, the stains on the working blade can be removed, further improving the cleanliness of the working blade. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of the pruning machine of this utility model;
[0017] Figure 2 yes Figure 1 Enlarged view of point A in the middle;
[0018] Figure 3 This is a schematic diagram of the structure of the air pipe and water pipe of this utility model.
[0019] In the diagram: 1. Power chamber; 2. Working parts; 3. Working blade; 4. Support; 5. Moving blade; 6. Stationary blade; 7. Cleaning assembly; 8. Mounting base; 9. Nozzle; 10. Air pipe; 11. Drive assembly; 12. Slider; 13. Guide rod; 14. Screw; 15. Air outlet; 16. Water pipe; 17. One-way valve. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings.
[0021] This application discloses a pruning machine.
[0022] Reference Figure 1 and Figure 2 It includes a power chamber 1 and a working component 2. The working component 2 includes a working blade 3 and a support 4. The working blade 3 includes a moving blade 5 and a stationary blade 6. One end of the support 4 is inserted and fixed in the power chamber 1, and one end of the stationary blade 6 is inserted and fixed in the power chamber 1. The moving blade 5 is located between the support 4 and the stationary blade 6, and reciprocates along the length of the support 4 under the action of the power chamber 1, so that the moving blade 5 and the stationary blade 6 can perform cutting motion.
[0023] The bracket 4 has a cleaning assembly 7, which includes a mounting base 8, a nozzle 9, an air pipe 10, and a drive assembly 11. The drive assembly 11 is mounted on the upper surface of the bracket 4, the mounting base 8 is located on the drive assembly 11, the nozzle 9 is mounted and fixed on the mounting base 8, one end of the air pipe 10 is connected to the nozzle 9, the power chamber 1 has an air pump and is connected to the other end of the air pipe 10, the drive assembly 11 includes a slider 12, a guide rod 13 and a screw 14, the screw 14 is placed along the length of the bracket 4, the guide rod 13 and the screw 14 are parallel to each other, one end of the screw 14 is inserted into the power chamber 1, the power chamber 1 has a drive motor, the output end of the drive motor is connected to one end of the screw 14, the drive motor can drive the screw 14 to rotate, the slider 12 is sleeved on the periphery of the screw 14 and connected by threads, the slider 12 is sleeved and slides on the periphery of the guide rod 13, and the air pipe 10 is a threaded tube and is wrapped around the periphery of the guide rod 13. Because the trachea 10 is a threaded tube and is wrapped around the periphery of the guide rod 13, the trachea 10 will not come into contact with the working blade 3 when the slider 12 slides, thus preventing the trachea 10 from being cut.
[0024] The nozzle 9 is annular and fits around the outer periphery of the working blade 3. Multiple air outlets 15 are evenly distributed circumferentially on the inner periphery of the nozzle 9, facing the working blade 3. Impurities exist in the gap between the moving blade 5 and the stationary blade 6. Subsequently, the drive motor in the power chamber 1 drives the screw 14 to rotate. With the screw 14 and the slider 12 in a threaded engagement, the slider 12 moves along the length of the bracket 4, thereby moving the nozzle 9. Simultaneously, the air pump in the power chamber 1 supplies air to the air pipe 10, which then flows into the nozzle 9 and is ejected from the multiple air outlets 15, blowing towards the working blade 3. This blows out the impurities in the gap between the moving blade 5 and the stationary blade 6, preventing damage to the cutting edges of either the moving blade 5 or the stationary blade 6.
[0025] Reference Figure 3An air pipe 10 has a water pipe 16 connected to its side wall near the power chamber 1. One end of the water pipe 16 is inserted into the power chamber 1, which contains a water tank for storing water. A water pump is installed at one end of the water pipe 16, and the water pump is placed inside the water tank. A one-way valve 17 is installed inside the water pipe 16 to prevent air from the air pipe 10 from flowing out of the water pipe 16. The water tank in the power chamber 1 supplies water to the water pipe 16, which then flows into the air pipe 10. The water is then sprayed onto the working blade 3 through the air outlet 15, thereby cleaning the working blade 3. Under the blowing force of the air pipe 10, the dirt on the working blade 3 can be removed.
[0026] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.
Claims
1. A pruning machine, comprising a power chamber (1) and a working component (2), one end of the working component (2) being disposed on one side of the power chamber (1), the working component (2) comprising a working blade (3) and a support (4), the working blade (3) being located within the support (4), characterized in that: A mounting base (8) is placed on the bracket (4), and a nozzle (9) is provided on the mounting base (8). An air pipe (10) is connected to the side wall of the nozzle (9). The air pipe (10) extends into the power chamber (1) at the end away from the nozzle (9). The nozzle (9) has an air outlet (15) facing the working blade (3). A drive assembly (11) is provided on the bracket (4) along the length direction. The drive assembly (11) can drive the mounting base (8) to reciprocate along the length direction of the bracket (4).
2. A trimmer according to claim 1, characterised in that The drive assembly (11) includes a slider (12), a guide rod (13) and a screw (14). The screw (14) is placed along the length of the bracket (4). The guide rod (13) and the screw (14) are parallel to each other. The circumferential thread of the screw (14) is connected to the slider (12). The slider (12) slides back and forth on the guide rod (13). One end of the screw (14) is inserted into the power chamber (1). The power chamber (1) drives the screw (14) to rotate.
3. A trimmer according to claim 1, wherein The nozzle (9) is annular and located on the outer periphery of the working blade (3).
4. A trimmer according to claim 1, wherein The air outlet (15) has multiple outlets, and the multiple air outlets (15) are evenly located on the inner circumferential side of the nozzle (9).
5. A trimmer according to claim 2, wherein The air tube (10) is in the shape of a threaded tube and is wrapped around the guide rod (13).
6. A trimmer according to claim 1, wherein The side wall of the air pipe (10) is connected to a water pipe (16), and the other end of the water pipe (16) extends into the power chamber (1).
7. A pruning machine according to claim 6, characterized in that... A one-way valve (17) is inserted into the water pipe (16).