Safe saw blade

Abstract

The utility model relates to a safe saw blade which comprises a saw blade body and a protection mechanism. The protection mechanism is arranged at one end of the saw blade body and comprises a reel and a sheath made of flexible materials, a protection groove for containing saw teeth is formed in the sheath in the length direction of the sheath, a rotating shaft is arranged in the middle of the reel, the sheath is wound around the rotating shaft, the near end of the sheath is fixedly connected with the rotating shaft, and an extending opening is formed in the side, located on the saw teeth of the saw blade body, of the reel. The far end of the protective sleeve extends out of the extending opening, and the protective groove covers the sawteeth of the saw blade body. Through the design of the reel and the flexible protective sleeve, the protection effect and convenience of the saw blade when the saw blade is not used are remarkably improved, the protective grooves formed in the protective sleeve can tightly wrap the saw teeth, the risk that the saw teeth are accidentally scratched or punctured by the bottoms of the saw teeth is eradicated, and the safety coefficient of storage in a non-working state is improved; and the sawteeth can be effectively prevented from being impacted or corroded by the outside when not in use, and the service life of the saw blade is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of saw blades, in particular to a safety saw blade. Background Art

[0002] Saw blades are important cutting tools in industries such as woodworking, metalworking, and construction. However, when the saw blade is not in use, its sharp teeth can easily cause accidental scratches, posing a significant safety risk.

[0003] In order to solve the above problems, a Chinese utility model patent (patent number 201520374120.8) discloses a safety saw blade, including a saw blade body, the saw blade body including a top surface, a serrated portion, and a side wall, the side wall is provided with a support plate, the support plate is fixedly connected to the side wall, the support plate is provided with a slide groove at one end facing the serrated portion, the slide groove is connected to a baffle assembly for shielding the saw blade, the baffle assembly includes at least two baffles hinged on the side edges, each baffle is provided with a connecting assembly on the side facing the slide groove, the connecting assembly is connected to the baffle, and the connecting assembly is also provided with a sliding structure on the side facing the slide groove, the sliding structure is respectively connected to the connecting assembly and the slide groove.

[0004] Although the above-mentioned safety saw blade blocks both sides of the saw teeth through the baffle assembly, reducing the safety risk of the saw blade when it is not working, its baffle assembly is large and easily blocks the line of sight when folded. In addition, its bottom is exposed and there is still a risk of accidental scratches. Utility Model Content

[0005] The technical problem to be solved by the present invention is to provide a safety saw blade to overcome the deficiencies in the above-mentioned prior art.

[0006] The technical solution of the utility model for solving the above-mentioned technical problems is as follows: a safety saw blade, comprising a saw blade body and a protective mechanism; the protective mechanism is arranged at one end of the saw blade body, the protective mechanism comprising a reel and a sheath of flexible material, a protective groove for accommodating saw teeth being arranged along its length direction, a rotating shaft being arranged in the middle of the reel, the sheath being wound on the rotating shaft, the proximal end of the sheath being fixedly connected to the rotating shaft, the reel being provided with an extension opening on one side of the saw teeth of the saw blade body, the distal end of the sheath extending from the extension opening, and the protective groove cover being provided on the saw teeth of the saw blade body.

[0007] The beneficial effects of the present invention are: through the design of the reel and the flexible sheath, the protection effect and convenience of the saw blade when not in use are significantly improved; the protective groove arranged in the sheath can tightly wrap the saw teeth, eliminating the risk of accidental scratches or punctures by the bottom of the saw teeth, and improving the safety factor of storage in a non-working state; and it can effectively prevent the saw teeth from being subjected to external impact or corrosion during non-use, thereby extending the service life of the saw blade; the sheath is stored by the reel, is compact in size, and is easy to carry and store; the sheath can be unfolded and stored with simple operations, which greatly improves work efficiency and usage experience.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, the rotating shaft includes a fixed shaft arranged in the middle of the reel, and a rotating sleeve arranged outside the fixed shaft. A coil spring is arranged between the fixed shaft and the rotating sleeve, and the two ends of the coil spring are fixedly connected to the outer peripheral wall of the fixed shaft and the inner peripheral wall of the rotating sleeve respectively; the proximal end of the sleeve is fixedly connected to the outer peripheral wall of the rotating sleeve.

[0010] Furthermore, a blocking piece is provided at the front end of the sheath.

[0011] Furthermore, a hook ring is provided on one end of the saw blade body away from the protection mechanism and on one side close to the saw teeth, and a hook is provided on the distal end of the sheath, and the hook matches the hook ring.

[0012] Furthermore, the sheath is made of rubber.

[0013] Furthermore, the cross section of the sheath is V-shaped, being wider at the top and narrower at the bottom. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the reel of the utility model;

[0017] Figure 4 This is a schematic diagram of the sheath structure of the utility model;

[0018] Figure 5 For this utility model Figure 1 A magnified view of the structure at center A.

[0019] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0020] 1. Saw blade body; 11. Hook; 2. Protective mechanism; 21. Reel; 211. Extension port; 22. Sheath; 221. Guard groove; 23. Rotating shaft; 231. Fixed shaft; 232. Rotating sleeve; 24. Coil spring; 25. Blocking piece; 26. Hook. DETAILED DESCRIPTION

[0021] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0022] like Figures 1 to 5 As shown, embodiment 1, a safety saw blade, includes a saw blade body 1 and a protective mechanism 2; the protective mechanism 2 is arranged at one end of the saw blade body 1, the protective mechanism 2 includes a reel 21 and a sheath 22 of a flexible material, and the sheath 22 is provided with a protective groove 221 for accommodating saw teeth along its length direction, a rotating shaft 23 is provided in the middle of the reel 21, the sheath 22 is wound on the rotating shaft 23, the proximal end of the sheath 22 is fixedly connected to the rotating shaft 23, the reel 21 is located on the saw tooth side of the saw blade body 1 and is provided with an extension port 211, the distal end of the sheath 22 extends from the extension port 211, and the protective groove 221 covers the saw teeth of the saw blade body 1.

[0023] The design of the reel 21 and the flexible sheath 22 significantly improves the protection effect and convenience of the saw blade when not in use. The protective groove 221 provided in the sheath 22 can tightly wrap the saw teeth, eliminating the risk of accidental scratches or punctures by the bottom of the saw teeth, and improving the safety factor of storage in the non-working state; and can effectively prevent the saw teeth from being subjected to external impact or corrosion during non-use, thereby extending the service life of the saw blade; the sheath 22 is stored by the reel 21, is compact in size, and is easy to carry and store. The sheath 22 can be unfolded and stored with simple operations, which greatly improves work efficiency and usage experience.

[0024] Example 2: This example is a further improvement on Example 1, and its details are as follows:

[0025] The rotating shaft 23 comprises a fixed shaft 231 disposed in the middle of the reel 21, and a rotating sleeve 232 rotatably mounted on the fixed shaft 231. A coil spring 24 is disposed between the fixed shaft 231 and the rotating sleeve 232. The ends of the coil spring 24 are fixedly connected to the outer circumference of the fixed shaft 231 and the inner circumference of the rotating sleeve 232, respectively. The proximal end of the sheath 22 is fixedly connected to the outer circumference of the rotating sleeve 232. The provision of the coil spring 24 eliminates the need to manually rewind the sheath 22 when storing it. The elastic action of the coil spring 24 allows the sheath 22 to be wound around the rotating sleeve 232, making storage more convenient.

[0026] Example 3: This example is a further improvement based on any one of Examples 1 to 2, and its details are as follows:

[0027] The front end of the sheath 22 is provided with a baffle 25. The baffle 25 can prevent the sheath 22 from being fully retracted into the reel 21, and is also convenient to pinch the baffle 25 and pull the sheath 22 out from the reel 21.

[0028] Example 4: This example is a further improvement based on any one of Examples 1 to 3, and its details are as follows:

[0029] A hook 11 is provided at one end of the saw blade body 1 away from the protection mechanism 2 and close to the saw teeth, and a hook 26 is provided at the distal end of the sheath 22, which matches the hook 26 and the hook 11, so that the sheath 22 can be positioned and locked more conveniently.

[0030] Example 5: This example is a further improvement based on any one of Examples 1 to 4, and its details are as follows:

[0031] The sheath 22 is made of rubber material. The rubber material can well protect the saw teeth and avoid saw teeth from wearing out.

[0032] Example 6: This example is a further improvement based on any one of Examples 1 to 5, and its details are as follows:

[0033] The cross section of the sheath 22 is V-shaped, being wider at the top and narrower at the bottom, so that the sheath 22 can be stacked together when being wound in the reel 21 to reduce the diameter of the reel 21.

[0034] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A safety saw blade, characterized in that: The invention comprises a saw blade body (1) and a protective mechanism (2); the protective mechanism (2) is arranged at one end of the saw blade body (1), the protective mechanism (2) comprises a reel (21) and a sheath (22) made of a flexible material, a protective groove (221) for accommodating saw teeth is arranged on the sheath (22) along its length direction, a rotating shaft (23) is arranged in the middle of the reel (21), the sheath (22) is wound around the rotating shaft (23), the proximal end of the sheath (22) is fixedly connected to the rotating shaft (23), the reel (21) is provided with a protruding opening (211) on one side of the saw teeth of the saw blade body (1), the distal end of the sheath (22) protrudes from the protruding opening (211), and the protective groove (221) covers the saw teeth of the saw blade body (1).

2. A safety saw blade according to claim 1, characterized in that: The rotating shaft (23) comprises a fixed shaft (231) arranged in the middle of the reel (21), and a rotating sleeve (232) rotatably sleeved outside the fixed shaft (231); a coil spring (24) is arranged between the fixed shaft (231) and the rotating sleeve (232); the two ends of the coil spring (24) are respectively fixedly connected to the outer peripheral wall of the fixed shaft (231) and the inner peripheral wall of the rotating sleeve (232); the proximal end of the sheath (22) is fixedly connected to the outer peripheral wall of the rotating sleeve (232).

3. A safety saw blade according to any one of claims 1 or 2, characterized in that: A blocking piece (25) is provided at the front end of the sheath (22).

4. A safety saw blade according to claim 1, characterized in that: A hook (11) is provided on one end of the saw blade body (1) away from the protection mechanism (2) and close to the saw teeth, and a hook (26) is provided on the far end of the sheath (22), and the hook (26) matches the hook (11).

5. The safety saw blade according to claim 1, characterized in that: The sheath (22) is made of rubber.

6. The safety saw blade according to claim 1, characterized in that: The cross section of the sheath (22) is V-shaped, being wider at the top and narrower at the bottom.

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