Portable single-hand saw

Abstract

The utility model relates to the field of single-hand saws, and discloses a portable single-hand saw which comprises a single-hand saw shell, a handheld part is arranged on the surface of the single-hand saw shell, a baffle is fixedly connected to the surface of the single-hand saw shell, a trigger switch is arranged on the surface of the single-hand saw shell, and a protection plate is arranged on the surface of the single-hand saw shell. A guide plate is arranged on the surface of the protection plate, a chain is arranged on the surface of the guide plate, a mistaken touch prevention structure is arranged on the surface of the single-hand saw shell and comprises a shielding frame, a positioning hole is formed in the lower surface of a trigger switch, and a through hole is formed in the surface of the shielding frame in a penetrating mode. The inner wall of the through hole is slidably connected with an insertion rod. According to the single-hand saw, the accidental touch prevention structure is arranged, so that the accident risk increased due to starting of the single-hand saw caused by misoperation is reduced, damage to the single-hand saw caused by accidental starting is reduced, and the service life of the single-hand saw is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of single-handed saws, and particularly to a portable single-handed saw. Background Technique

[0002] A portable single-handed saw, usually also called a hand-held saw or a folding saw, is a small saw designed for hand-held operation, featuring portability and ease of use. Portable single-handed saws are typically small in size and light in weight, making them convenient to carry outdoors or to work sites. They are suitable for quickly cutting materials such as wood, plastic, and metal, especially for small-scale cutting tasks. In home repairs and DIY projects, portable single-handed saws can quickly complete cutting tasks.

[0003] After retrieval, the Chinese patent publication number: CN213320571U discloses a single-handed saw with an oil pot. By setting a manual oil pump, the manual oil pump is used to add lubricating oil to the chain to keep the chain smooth, and the manual oil pump can extrude the amount of lubricating oil according to needs.

[0004] In the above technical solution, a manual oil pump is used to add lubricating oil to the chain to ensure the smoothness of the use of the single-handed saw. However, the trigger switch of the single-handed saw lacks a protection and shielding function, which may cause the single-handed saw to start accidentally during the carrying process, increasing the risk of accidents. At the same time, accidental operation makes the single-handed saw start, which increases the risk of its damage. Therefore, a portable single-handed saw is proposed to solve the above problems. Content of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a portable single-handed saw, aiming to improve the problems in the prior art that the portable single-handed saw lacks the anti-misoperation function for the trigger switch, resulting in an increased risk of accidents and a reduced safety level of the single-handed saw during use.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: A portable single-handed saw, including a single-handed saw housing, a hand-held part is arranged on the surface of the single-handed saw housing, a baffle is fixedly connected to the surface of the single-handed saw housing, a trigger switch is arranged on the surface of the single-handed saw housing, a protection plate is arranged on the surface of the single-handed saw housing, a guide plate is arranged on the surface of the protection plate, a chain is arranged on the surface of the guide plate, an anti-misoperation structure is arranged on the surface of the single-handed saw housing, the anti-misoperation structure includes a shielding frame, a positioning hole is opened on the lower surface of the trigger switch, a through hole is penetrated on the surface of the shielding frame, a plug rod is slidably connected to the inner wall of the through hole, a telescopic spring is sleeved on the outer wall of the plug rod, a shielding component is arranged on the surface of the shielding frame, and a positioning component is arranged on the surface of the shielding frame.

[0007] As a further description of the above technical solution:

[0008] An extension plate is fixedly connected to the surface of the single-handed saw housing. A T-shaped groove is formed on the lower surface of the extension plate. A T-shaped block is arranged inside the T-shaped groove. An anti-slip pad is fixedly connected to the bottom of the T-shaped block. A hook-and-loop fastener female surface is fixedly connected to the upper surface of the anti-slip pad. A hook-and-loop fastener male surface is arranged on the top of the hook-and-loop fastener female surface.

[0009] As a further description of the above technical solution:

[0010] The outer wall of the shielding frame is hinged to the inner surface of the baffle. The bottom end of the telescopic spring is fixedly connected to the outer wall of the insertion rod. The top end of the telescopic spring is fixedly connected to the outer wall of the shielding frame. The outer wall of the insertion rod is adapted to the inner wall of the positioning hole.

[0011] As a further description of the above technical solution:

[0012] The shielding assembly includes a shielding rod. An arc spring is fixedly connected to the top of the shielding rod. A fixing plate is fixedly connected to the outer wall of the shielding frame. A hook-and-loop fastener one is fixedly connected to the outer wall of the shielding frame. A hook-and-loop fastener two is fixedly connected to the outer wall of the shielding rod.

[0013] As a further description of the above technical solution:

[0014] The positioning assembly includes a magnet one. A magnet two is magnetically connected to the outer wall of the magnet one. A rubber pad is fixedly connected to the inner surface of the shielding frame.

[0015] As a further description of the above technical solution:

[0016] The inner wall of the shielding rod is fixedly connected to the outer wall of the shielding frame through a rotating shaft. One end of the arc spring away from the shielding rod is fixedly connected to the side wall of the fixing plate.

[0017] As a further description of the above technical solution:

[0018] The magnet one is fixedly connected to the outer wall of the shielding frame on the side away from the rubber pad. The outer wall of the magnet two is fixedly connected to the inner surface of the baffle.

[0019] As a further description of the above technical solution:

[0020] The outer wall of the T-shaped block is adapted to the inner wall of the T-shaped groove.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the present utility model, the shielding frame is fixed outside the trigger switch through the cooperation of a positioning hole, a plug rod, a telescopic spring, and a through hole to shield it. After the shielding component cooperates with the positioning component to shield three sides of the trigger switch, when the one-handed saw needs to be used, the shielding is withdrawn to position the shielding frame, reducing the accident risk increased by the accidental start of the one-handed saw due to misoperation, avoiding potential dangers, reducing the damage of the one-handed saw caused by accidental start, and prolonging the service life of the one-handed saw.

[0023] 2. In the present utility model, by providing a T-shaped block, a T-shaped groove, an extension plate, and an anti-slip pad, the area between the one-handed saw and the ground or tabletop where it is placed can be enlarged, increasing the friction during placement. The male surface of the magic tape and the female surface of the magic tape facilitate the replacement of the worn anti-slip pad, reducing the risk of the one-handed saw falling and being knocked when placed and being collided by the outside world. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a bottom view schematic diagram of the main structure of a portable one-handed saw proposed by the present utility model;

[0025] Figure 2 is a Figure 1 magnified schematic diagram of area A in a portable one-handed saw proposed by the present utility model;

[0026] Figure 3 is a Figure 1 magnified schematic diagram of area B in a portable one-handed saw proposed by the present utility model;

[0027] Figure 4 is a side view schematic diagram of the main structure of a portable one-handed saw proposed by the present utility model;

[0028] Figure 5 is a Figure 4 magnified schematic diagram of area C in a portable one-handed saw proposed by the present utility model;

[0029] Figure 6 is a side view schematic diagram of a partial structure of a portable one-handed saw proposed by the present utility model.

[0030] LEGEND DESCRIPTION:

[0031] 1. One-handed saw housing; 2. Holding part; 3. Baffle; 4. Trigger switch; 5. Protective plate; 6. Guide plate; 7. Chain; 8. Shielding frame; 9. Positioning hole; 10. Plug rod; 11. Telescopic spring; 12. Through hole; 13. Shielding rod; 14. Arc spring; 15. Fixed plate; 16. Magic tape one; 17. Magic tape two; 18. Magnet one; 19. Magnet two; 20. Rubber pad; 21. Extension plate; 22. T-shaped groove; 23. T-shaped block; 24. Anti-slip pad; 25. Male surface of magic tape; 26. Female surface of magic tape. Detailed implementation manners

[0032] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0033] Refer to Figures 1-3 , an embodiment provided by the present utility model: a portable single-handed saw, including a single-handed saw housing 1, a motor is arranged inside the single-handed saw housing 1, a chain 7 is wrapped around the outer wall of a guide plate 6 for rotation, a hand-held part 2 is arranged on the surface of the single-handed saw housing 1, the hand-held part 2 is convenient for an operator to hold the hand, a baffle 3 is fixedly connected to the surface of the single-handed saw housing 1, a trigger switch 4 is arranged on the surface of the single-handed saw housing 1, the trigger switch 4 is used to control the start and stop of the saw, a protection plate 5 is arranged on the surface of the single-handed saw housing 1, the protection plate 5 can cover the guide plate 6 and the chain 7 when the single-handed saw is not in use, a guide plate 6 is arranged on the surface of the protection plate 5, a chain 7 is arranged on the surface of the guide plate 6, an anti-misoperation structure is arranged on the surface of the single-handed saw housing 1, the anti-misoperation structure includes a shielding frame 8, a positioning hole 9 is opened on the lower surface of the trigger switch 4, a through hole 12 is penetrated through the surface of the shielding frame 8, a plug rod 10 is slidably connected to the inner wall of the through hole 12, the material of the plug rod 10 can be set as a light material such as plastic, a telescopic spring 11 is sleeved on the outer wall of the plug rod 10, a shielding component is arranged on the surface of the shielding frame 8, and a positioning component is arranged on the surface of the shielding frame 8.

[0034] Refer to Figures 4-6, the outer wall of the shielding frame 8 is hinged to the inner surface of the baffle 3. The bottom end of the telescopic spring 11 is fixedly connected to the outer wall of the insertion rod 10, and the top end of the telescopic spring 11 is fixedly connected to the outer wall of the shielding frame 8. The outer wall of the insertion rod 10 is adapted to the inner wall of the positioning hole 9. The insertion rod 10 is elastically inserted into the positioning hole 9 through the telescopic spring 11 so that the shielding frame 8 and the trigger switch 4 can be fixed. The shielding assembly includes a shielding rod 13. There are two groups of shielding assemblies, and the two groups of shielding assemblies are symmetrically arranged with the central axis of the shielding frame 8 as the axis of symmetry. The inner wall of the shielding rod 13 is fixedly connected to the outer wall of the shielding frame 8 through a rotating shaft. When the two groups of shielding rods 13 are not affected by external forces, they can be in a parallel state to shield the side of the trigger switch 4. The top of the shielding rod 13 is fixedly connected with an arc spring 14. One end of the arc spring 14 away from the shielding rod 13 is fixedly connected to the side wall of the fixing plate 15. The outer wall of the shielding frame 8 is fixedly connected with a fixing plate 15. The outer wall of the shielding frame 8 is fixedly connected with a first magic tape 16, and the outer wall of the shielding rod 13 is fixedly connected with a second magic tape 17. The first magic tape 16 and the second magic tape 17 can be adhered to each other to fix the shielding rod 13. The positioning assembly includes a first magnet 18. The first magnet 18 is fixedly connected to the outer wall of the shielding frame 8 on the side away from the rubber pad 20. The outer wall of the first magnet 18 is magnetically connected to a second magnet 19. The magnetic attraction between the first magnet 18 and the second magnet 19 can fix the shielding frame 8 on the inner side of the baffle 3 after the shielding frame 8 moves away from shielding the trigger switch 4. The outer wall of the second magnet 19 is fixedly connected to the inner surface of the baffle 3. The inner surface of the shielding frame 8 is fixedly connected with a rubber pad 20.

[0035] Refer to Figure 3 , an extension plate 21 is fixedly connected to the surface of the one-handed saw housing 1. A T-shaped groove 22 is formed in the lower surface of the extension plate 21. A T-shaped block 23 is arranged inside the T-shaped groove 22. The outer wall of the T-shaped block 23 is adapted to the inner wall of the T-shaped groove 22. The bottom of the T-shaped block 23 is fixedly connected with an anti-slip pad 24. The upper surface of the anti-slip pad 24 is fixedly connected with a female magic tape 26. A male magic tape 25 is arranged on the top of the female magic tape 26. One side of the male magic tape 25 away from the female magic tape 26 is fixedly connected to the lower surface of the one-handed saw housing 1. The male magic tape 25 and the female magic tape 26 are adhered to each other, which can facilitate the replacement of the worn anti-slip pad 24. There are two groups of anti-slip pads 24, and the two groups of anti-slip pads 24 are symmetrically arranged with the central axis of the one-handed saw housing 1 as the axis of symmetry. The anti-slip pads 24 expand the bottom area of the one-handed saw housing 1, so that when the one-handed saw housing 1 is placed, the bottom of the one-handed saw housing 1 and the contact surface provide friction.

[0036] Working principle: When using the one-handed saw, the user holds the handheld part 2 with one hand and presses the trigger switch 4 to start using the one-handed saw. When the one-handed saw is being carried, since the hand holds the handheld part 2, it may hold the trigger switch 4. At this time, pull the shielding frame 8, and the shielding frame 8 will cause the separation of magnetic attraction between the first magnet 18 and the second magnet 19. The shielding frame 8 rotates around the hinge point with the baffle 3, gradually keeping it parallel to the trigger switch 4. Then pull the insertion rod 10 downward, and the telescopic spring 11 contracts. When the shielding frame 8 remains parallel to the trigger switch 4, release the insertion rod 10, and the elasticity of the telescopic spring 11 will drive the insertion rod 10 to insert into the positioning hole 9. The rubber pad 20 fits against the outer wall of the trigger switch 4, so that three sides of the trigger switch 4 are shielded, reducing the start of the one-handed saw caused by accidentally touching the trigger switch 4. When the one-handed saw needs to be used, bend the two shielding rods 13 downward. After the two arc springs 14 are stretched by force, until the first magic tape 16 and the second magic tape 17 adhere to each other to fix the folding between the two shielding rods 13 and the shielding frame 8. Then push the shielding frame 8 toward the baffle 3 side until the first magnet 18 and the second magnet 19 are attracted to each other. After the shielding frame 8 removes the shielding of the trigger switch 4, it is convenient for the user's finger to press the trigger switch 4 to start using the one-handed saw, improving the safety of using the one-handed saw and reducing the accident risk caused by misoperation. Finally, when the anti-slip pad 24 fits against the tabletop, it provides stability when placing the one-handed saw on the ground. When the surface of the anti-slip pad 24 is unevenly worn after long-term use, tear the male magic tape 25 and the female magic tape 26 apart, and then pull the T-shaped block 23 out of the T-shaped groove 22, so that the anti-slip pad 24 is completely separated from the extension board 21. When replacing the new anti-slip pad 24, reverse the above steps, thereby reducing the risk of the one-handed saw falling and being knocked due to external collisions when placed.

[0037] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A portable single-hand saw, comprising a single-hand saw housing (1), a hand-held portion (2) being arranged on the surface of the single-hand saw housing (1), a baffle (3) being fixedly connected to the surface of the single-hand saw housing (1), a trigger switch (4) being arranged on the surface of the single-hand saw housing (1), a protective plate (5) being arranged on the surface of the single-hand saw housing (1), a guide plate (6) being arranged on the surface of the protective plate (5), and a chain (7) being arranged on the surface of the guide plate (6), characterized in that: The surface of the single-hand saw housing (1) is provided with an anti-accidental touch structure, and the anti-accidental touch structure includes a shielding frame (8). The lower surface of the trigger switch (4) is provided with a positioning hole (9). The surface of the shielding frame (8) is provided with a through hole (12). The inner wall of the through hole (12) is slidably connected with an insertion rod (10). The outer wall of the insertion rod (10) is sleeved with a telescopic spring (11). The surface of the shielding frame (8) is provided with a shielding component, and the surface of the shielding frame (8) is provided with a positioning component.

2. A portable single-hand saw according to claim 1, characterized in that: The surface of the single-hand saw housing (1) is fixedly connected to an expansion plate (21), the lower surface of the expansion plate (21) is provided with a T-shaped slot (22), a T-shaped block (23) is arranged inside the T-shaped slot (22), the bottom of the T-shaped block (23) is fixedly connected to an anti-skid pad (24), the upper surface of the anti-skid pad (24) is fixedly connected to a Velcro female surface (26), and a Velcro male surface (25) is arranged on the top of the Velcro female surface (26).

3. A portable single-hand saw according to claim 1, characterized in that: The outer wall of the shielding frame (8) is hinged to the inner surface of the baffle (3), the bottom end of the telescopic spring (11) is fixedly connected to the outer wall of the insertion rod (10), the top end of the telescopic spring (11) is fixedly connected to the outer wall of the shielding frame (8), and the outer wall of the insertion rod (10) is compatible with the inner wall of the positioning hole (9).

4. A portable single-hand saw according to claim 1, characterized in that: The shielding assembly comprises a shielding rod (13), the top of the shielding rod (13) is fixedly connected to an arc spring (14), the outer wall of the shielding frame (8) is fixedly connected to a fixing plate (15), the outer wall of the shielding frame (8) is fixedly connected to a Velcro 1 (16), and the outer wall of the shielding rod (13) is fixedly connected to a Velcro 2 (17).

5. The portable single-hand saw according to claim 1, characterized in that: The positioning assembly comprises a magnet one (18), the outer wall of the magnet one (18) is magnetically connected to a magnet two (19), and the inner surface of the shielding frame (8) is fixedly connected to a rubber pad (20).

6. A portable single-hand saw according to claim 4, characterized in that: The inner wall of the shielding rod (13) is fixedly connected to the outer wall of the shielding frame (8) via a rotating shaft, and one end of the arc spring (14) away from the shielding rod (13) is fixedly connected to the side wall of the fixing plate (15).

7. The portable single-hand saw according to claim 5, characterized in that: The first magnet (18) is fixedly connected to the outer wall of the shielding frame (8) on a side away from the rubber pad (20), and the outer wall of the second magnet (19) is fixedly connected to the inner surface of the baffle (3).

8. The portable single-hand saw according to claim 2, characterized in that: The outer wall of the T-shaped block (23) is matched with the inner wall of the T-shaped slot (22).

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