Chain saw capable of preventing oil splashing
By designing a cleaning mechanism on the chainsaw, a motor-driven rotating rod scrapes off impurities from the oil-blocking film, and a high-pressure nozzle washes them away, solving the problem of inconvenient cleaning of existing chainsaws and achieving a highly efficient oil-blocking film cleaning effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-03-06
AI Technical Summary
In existing chainsaw oil shield cleaning devices, impurities easily adhere to the cleaning device, causing inconvenience in cleaning and affecting the next use.
A cleaning mechanism was designed, including a cleaning housing, a rotating rod, a scraper, a micro motor, and a high-pressure nozzle. The motor drives the rotating rod to rotate, the scraper removes impurities from the oil-blocking film, and the high-pressure nozzle washes away the impurities.
It achieves efficient cleaning of the oil-resistant film, avoids the adhesion of impurities, improves cleaning efficiency and effectiveness, and reduces pollution to the cleaning device.
Smart Images

Figure CN223968385U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chainsaw technology, specifically to a chainsaw that prevents oil splashing. Background Technology
[0002] Chainsaws, also known as oil saws, are hand-held saws powered by gasoline engines. They are mainly used for logging and timber processing. Their working principle is based on the lateral movement of L-shaped blades on the saw chain to perform the cutting action. Chainsaws are generally divided into motorized chainsaws and non-motorized chainsaws.
[0003] However, current chainsaws still have some shortcomings. A search reveals, for example, a utility model patent in China with announcement number CN219781132U discloses a chainsaw designed to prevent oil splashing. First, by pulling down the pedal, the oil-blocking membrane is disengaged from the winding drum. When the membrane is pulled out to a specified length and the pedal is dragged to the ground, stepping on the pedal prevents oil and sawdust from splashing onto the worker's clothes. As the membrane is gradually rolled back into the storage box, it is supported by a support block. Then, a plastic brush is used to remove larger sawdust and impurities, followed by a cotton brush to remove oil droplets, thus cleaning the membrane thoroughly.
[0004] However, when the device uses plastic brushes and cotton brushes for cleaning, wood chips and oil droplets will adhere to the plastic brushes and cotton brushes. The brushes have too many gaps, which makes them difficult to clean. This not only contaminates the brushes but also affects the cleaning of the oil-resistant film in the next cleaning. Therefore, an oil-splatter-proof chainsaw was proposed to solve the above problems. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To address the shortcomings of existing technologies, this utility model provides an oil-splatter-proof chainsaw, which has the advantages of facilitating the cleaning of impurities on the oil-blocking film and solving the problem that impurities easily adhere to the cleaning device when cleaning impurities.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, the present invention provides the following technical solution: a chainsaw with anti-splashing oil, comprising a chainsaw body, a saw chain extending through and disposed on the rear side of the chainsaw body, an installation housing mounted on the rear side of the chainsaw body, a take-up roller rotatably connected inside the installation housing, an oil-blocking film disposed outside the take-up roller, and a cleaning mechanism disposed between the oil-blocking film and the installation housing.
[0009] The cleaning mechanism includes a cleaning housing, with the cleaning housing fixedly mounted on the bottom of the mounting housing. Two rotating rods are rotatably connected inside the cleaning housing. Scraper blades are fixedly mounted on the outside of the rotating rods. A frame is fixedly mounted on the side wall of the cleaning housing. A micro motor is fixedly mounted on the inner side wall of the cleaning housing. Gears are fixedly mounted on the outside of the rotating rods. A water inlet pipe is mounted on the side wall of the cleaning housing, and a spray nozzle is mounted on the side wall of the water inlet pipe.
[0010] Furthermore, the bottom wall of the mounting housing has a first opening, and the bottom end of the oil-blocking film extends to the bottom of the mounting housing through the first opening.
[0011] Furthermore, the upper and lower side walls of the cleaning housing are provided with second openings, and the mounting housing is connected to the interior of the cleaning housing through the second opening and the first opening. The bottom end of the oil-blocking film penetrates the cleaning housing and extends to the bottom of the cleaning housing.
[0012] Furthermore, the number of scrapers exceeds five, the sidewalls of the scrapers are in contact with the oil-blocking film, and the sidewalls of the nozzle extend into the interior of the cleaning housing.
[0013] Furthermore, the nozzle is a high-pressure nozzle, the bottom of the cleaning housing has a water outlet, the two gears are meshed and connected, and the oil-blocking film is located between the two rotating rods.
[0014] Furthermore, a rotating handle is fixedly installed on the side end of the take-up roller, a pedal is fixedly installed on the bottom of the oil-blocking film, the rotating handle is connected to the mounting housing through a damping shaft, and the output shaft of the micro motor is fixedly connected to a rotating rod on one side.
[0015] (III) Beneficial Effects
[0016] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0017] 1. This anti-splash chainsaw features a cleaning mechanism. When the take-up roller rotates, a motor drives a rotating rod to rotate, causing two rods to rotate in opposite directions. This, in turn, causes the scraper blade to rotate towards the oil-blocking film. As the scraper blade rotates, it removes oil and impurities from the oil-blocking film. When impurities adhere to the scraper blade, the water inlet pipe can be connected to an external water source, and the water can be sprayed out through a high-pressure nozzle to rinse the impurities on the scraper blade. The scraper blade is easier to clean than a cleaning brush.
[0018] 2. This splash-proof chainsaw has a handle that allows manual rotation of the take-up roller to wind up and unwind the oil-blocking film; a pedal is also included to allow the user to press the pedal to secure the oil-blocking film. Attached Figure Description
[0019] Figure 1 This is a front view of the present utility model;
[0020] Figure 2 This is a rear sectional view of the present invention;
[0021] Figure 3 This is a top sectional view of the cleaning mechanism of this utility model;
[0022] Figure 4 This utility model Figure 2 Enlarged view of the structure at point A in the middle.
[0023] In the diagram: 1 Chainsaw body, 2 Chainsaw chain, 3 Mounting housing, 4 Rewind roller, 5 Oil film barrier, 6 Cleaning mechanism, 601 Cleaning housing, 602 Rotating rod, 603 Scraper, 604 Frame, 605 Miniature motor, 606 Gear, 607 Water inlet pipe, 608 Nozzle, 7 Pedal, 8 Handrail. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Please see Figure 1-4 This embodiment of a chainsaw with anti-splashing features includes a chainsaw body 1, a saw chain 2 extending through and disposed on the rear side of the chainsaw body 1, a mounting housing 3 mounted on the rear side of the chainsaw body 1, a take-up roller 4 rotatably connected inside the mounting housing 3, an oil-blocking film 5 disposed on the outside of the take-up roller 4, and a cleaning mechanism 6 disposed between the oil-blocking film 5 and the mounting housing 3.
[0026] Specifically, the cleaning mechanism 6 includes a cleaning housing 601, which is fixedly mounted on the bottom of the mounting housing 3. Two rotating rods 602 are rotatably connected inside the cleaning housing 601. A scraper 603 is fixedly mounted on the outside of each rotating rod 602. A frame 604 is fixedly mounted on the side wall of the cleaning housing 601. A micro motor 605 is fixedly mounted on the inner side wall of the cleaning housing 601. A gear 606 is fixedly mounted on the outside of each rotating rod 602. A water inlet pipe 607 is mounted on the side wall of the cleaning housing 601, and a nozzle 6 is mounted on the side wall of the water inlet pipe 607. 08. By setting up the cleaning mechanism 6, when the take-up roller 4 is rotated, the motor 605 drives the rotating rod 602 to rotate, thereby driving the two rotating rods 602 to rotate in opposite directions, thereby driving the scraper 603 to rotate in the direction of the oil-blocking film 5. When the scraper 603 rotates, it will scrape off the oil and dirt on the oil-blocking film 5. When the dirt adheres to the scraper 603, the water inlet pipe 607 can be connected to the external water source, and the water can be sprayed out through the high-pressure nozzle 608. The water source can wash the dirt on the scraper 603. The scraper 603 is easier to clean than the cleaning brush.
[0027] Specifically, there are more than five scraper blades 603. The sidewalls of the scraper blades 603 are in contact with the oil barrier film 5. The sidewalls of the nozzle 608 extend into the interior of the cleaning housing 601. Multiple scraper blades 603 can continuously scrape and clean the outer wall of the oil barrier film 5.
[0028] Specifically, the nozzle 608 is a high-pressure nozzle, and the bottom of the cleaning housing 601 has a water outlet. Two gears 606 are meshed and connected, and the oil-blocking film 5 is located between the two rotating rods 602. The high-pressure nozzle can rinse the adhering impurities with greater rinsing force and better cleaning effect. When the two gears 606 are meshed and connected, they can drive the two rotating rods 602 to rotate in opposite directions, thereby driving the scraper 603 to rotate in the direction of the oil-blocking film 5.
[0029] Specifically, a rotating handle is fixedly installed on the side end of the take-up roller 4, and a pedal 7 is fixedly installed on the bottom of the oil-blocking film 5. The rotating handle is connected to the mounting housing 3 through a damping shaft. The output shaft of the micro motor 605 is fixedly connected to a rotating rod 602 on one side. By setting the damping shaft, it is easy to control the rotation angle of the rotating handle and the winding length of the oil-blocking film 5.
[0030] When implementing this procedure, please follow these steps:
[0031] 1) First, hold the rotating handle and turn it to lower the oil shield 5 to a certain length. Then, step on the pedal 7 so that the oil shield 5 can be placed in front of the user to prevent impurities and oil from splashing onto the user. Then, hold the handle to make the chainsaw body 1 drive the saw chain 2 to rotate and cut the object.
[0032] 2) After cutting, connect the water inlet pipe 607 to the external water source and turn on the motor 605 to drive the rotating rod 602 to rotate. At the same time, drive the rotating handle to reverse and roll the oil-blocking film 5 onto the winding roller 4.
[0033] 3) The last two rotating rods 602 rotate in opposite directions, thereby driving the scraper 603 to rotate in the direction of the oil barrier 5. When the scraper 603 rotates, it scrapes off the oil and impurities on the oil barrier 5. Water is sprayed out through the high-pressure nozzle 608, and the water can wash away the impurities adhering to the scraper 603.
[0034] In summary, this anti-splash chainsaw, through the installation of a cleaning mechanism 6, controls the rotation of the take-up roller 4, which in turn drives the rotating rod 602 to rotate via the motor 605. This causes the two rotating rods 602 to rotate in opposite directions, thereby causing the scraper 603 to rotate towards the oil barrier film 5. As the scraper 603 rotates, it scrapes away oil and impurities on the oil barrier film 5. When impurities adhere to the scraper 603, the water inlet pipe 607 can be connected to an external water source, and the water can be sprayed out through the high-pressure nozzle 608 to rinse the impurities on the scraper 603. Compared with a cleaning brush, the scraper 603 is easier to clean, solving the problem that when using plastic brushes and cotton brushes for cleaning in a proportional device, sawdust and oil droplets would adhere to the plastic brushes and cotton brushes, and the brushes had too many gaps, making them difficult to clean and not only contaminating the brushes but also affecting the cleaning of the oil barrier film in the next cycle.
[0035] Furthermore, the oil-splashing chainsaw can be manually rotated by a rotating handle to rotate the take-up roller 4, thereby winding and unwinding the oil-blocking film 5; and the presence of a pedal 7 allows the user to easily step on the pedal 7 to fix the oil-blocking film 5.
[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A splash-resistant chainsaw comprising a chainsaw body (1), characterised in that: The rear side of the oil saw body (1) is provided with a saw chain (2), and the rear side of the oil saw body (1) is provided with a mounting shell (3), the inside of the mounting shell (3) is rotatably connected with a winding roller (4), the outside of the winding roller (4) is provided with an oil blocking film (5), the cleaning mechanism (6) is arranged between the oil blocking film (5) and the mounting shell (3), and the top of the oil saw body (1) is fixedly provided with a handrail (8). The cleaning mechanism (6) comprises a cleaning shell (601), the bottom of the mounting shell (3) is fixedly provided with the cleaning shell (601), the inside of the cleaning shell (601) is rotatably connected with two rotating rods (602), the outside of the rotating rod (602) is fixedly provided with a dirt scraping plate (603), the side wall of the cleaning shell (601) is fixedly provided with a frame (604), the inside wall of the cleaning shell (601) is fixedly provided with a micro motor (605), the outside of the rotating rod (602) is fixedly provided with a gear (606), the side wall of the cleaning shell (601) is provided with a water inlet pipe (607), and the side wall of the water inlet pipe (607) is provided with a spray head (608).
2. A kickback resistant chainsaw in accordance with claim 1, characterised in that: The bottom wall of the mounting shell (3) is provided with a first opening, and the bottom end of the oil blocking film (5) extends to the bottom of the mounting shell (3) through the first opening.
3. A kickback resistant chainsaw in accordance with claim 1 wherein: The upper and lower side walls of the cleaning shell (601) are provided with second openings, the inside of the cleaning shell (601) is connected with the mounting shell (3) through the second openings and the first opening, and the bottom end of the oil blocking film (5) extends to the bottom of the cleaning shell (601) through the cleaning shell (601).
4. An oil throwing chain saw according to claim 1, characterized in that: The number of the dirt scraping plates (603) is more than five, the side wall of the dirt scraping plate (603) is in contact with the oil blocking film (5), and the side wall of the spray head (608) extends to the inside of the cleaning shell (601).
5. An oil throwing chain saw according to claim 1, characterized in that: The spray head (608) is a high-pressure spray head, the bottom of the cleaning shell (601) is provided with a water outlet, the two gears (606) are meshed and connected, and the oil blocking film (5) is located between the two rotating rods (602).
6. An oil throwing chain saw according to claim 1, characterized in that: The side end of the winding roller (4) is fixedly provided with a rotating handle, the bottom of the oil blocking film (5) is fixedly provided with a pedal (7), the rotating handle is connected with the mounting shell (3) through a damping rotating shaft, and the output shaft of the micro motor (605) is fixedly connected with one side rotating rod (602).
Citation Information
Patent Citations
Chain saw capable of preventing oil splashing
CN219781132U