Wood saw blade easy to install

Abstract

The utility model relates to the technical field of wood saw blades, and discloses an easy-to-install wood saw blade which comprises an angle grinder, a rotating shaft and a cutting blade, the angle grinder is rotatably connected with the rotating shaft, the rotating shaft is fixedly installed on an output shaft of the angle grinder, the rotating shaft is movably sleeved with a fixed disc, and movable discs are arranged in front of the fixed disc at intervals. The cutting blade is arranged between the movable disc and the fixed disc, clamping blocks are annularly arranged on the inner side of the movable disc, a boss is arranged at the position, corresponding to the movable disc, of the rotating shaft, clamping grooves are annularly formed in the boss, the number of the clamping blocks corresponds to the number of the clamping grooves, and the clamping blocks are movably connected into the clamping grooves. According to the scheme, the movable disc and the fixed disc can be used in cooperation, the position of the cutting blade can be stably fixed, bolt assistance is not needed in the whole disassembling and assembling process, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of wood saw blades, in particular to a wood saw blade that is easy to install. Background Art

[0002] Existing circular saw blades for woodworking generally use a one-piece design, with the teeth fixed to the outer edge of the circular saw blade body. After a period of continuous use, some of the teeth become worn, and the entire circular saw blade needs to be replaced and discarded, resulting in wasteful processing and manufacturing. A detachable circular saw blade with a split design can solve this problem.

[0003] However, in the prior art, when disassembling a circular saw blade, bolts are generally used to facilitate the installation of the angle grinder and circular saw blade. However, this installation method requires tools, is time-consuming and labor-intensive, and is not conducive to replacing the circular saw blade. To address this issue, we propose an easy-to-install wood saw blade. Utility Model Content

[0004] The purpose of the present utility model is to provide a wood saw blade that is easy to install, so as to solve the problem in the prior art proposed in the above background technology that, when disassembling the circular saw blade, bolts are generally used to assist in the installation of the angle grinder and the circular saw blade. However, this installation method requires tool assistance, and the bolt installation method is time-consuming and labor-intensive, which is not conducive to the replacement of the circular saw blade.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wood saw blade that is easy to install, comprising an angle grinder, a rotating shaft and a cutting disc, the angle grinder being rotatably connected to the rotating shaft, the rotating shaft being fixedly installed on the output shaft of the angle grinder, a fixed disk being movably sleeved on the rotating shaft, a movable disk being spaced apart in front of the fixed disk, the cutting disc being arranged between the movable disk and the fixed disk, a clamping block being provided in an annular shape on the inner side of the movable disk, a boss being provided on the rotating shaft at a position corresponding to the movable disk, a clamping groove being provided in an annular shape on the boss, the number of the clamping block and the clamping groove corresponding to each other, and the clamping block being movably connected to the inside of the clamping groove.

[0006] Preferably, a guide rod is provided in an annular shape on the end surface of the fixed disk corresponding to the movable disk, and a hole groove is opened on the cutting disc to facilitate the insertion of the guide rod.

[0007] Preferably, the length of the guide rod is smaller than the thickness of the cutting blade, and the depth of the hole groove is smaller than the thickness of the cutting blade.

[0008] Preferably, a flexible pad is glued to the end surface of the fixed plate corresponding to the movable plate, and the flexible pad is arranged on the inner side of the adjacent guide rod.

[0009] Preferably, the flexible pad is in active contact with the cutting blade, and the flexible pad is arranged on the rear side of the cutting blade.

[0010] Preferably, the inner diameter of the movable disk is larger than the outer diameter of the corresponding side of the rotating shaft, and the movable disk and the fixed disk are both collinear with the center of the rotating shaft.

[0011] Preferably, the widths of the clamping block and the clamping slot are equal.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. This easy-to-install wood saw blade, when replacing the saw blade, rotate the movable disk so that the inner and outer positions of the clamping block on the movable disk and the clamping groove correspond to each other, and the cutting blade can be replaced by sliding the movable disk off the rotating shaft; when installing a new cutting blade on the electric drill, first sleeve the cutting blade on the rotating shaft and make the cutting blade contact with the flexible pad; secondly, make the position of the clamping block correspond to the clamping groove, sleeve the movable disk onto the rotating shaft and make the movable disk contact with the cutting blade, rotate the movable disk so that the position of the clamping block on the movable disk and the clamping groove are staggered, and the position of the cutting blade can be stably fixed by the movable disk and the fixed disk. The entire disassembly and assembly process does not require the assistance of bolts, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

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

[0016] Figure 3 This is a schematic diagram of the connection between the saw blade and the rotating shaft of the utility model;

[0017] Figure 4 This is a schematic diagram of a half-section structure of the saw blade and rotating shaft of the present invention;

[0018] Figure 5 For the utility model Figure 4 Enlarged view of point M.

[0019] In the figure: 1. Angle grinder; 2. Rotating shaft; 21. Movable disk; 22. Fixed disk; 23. Boss; 24. Snap-fit ​​groove; 25. Guide rod; 26. Flexible pad; 27. Block; 3. Cutting disc. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Example: See Figure 1-5 The present utility model provides a technical solution: an easy-to-install wood saw blade. This solution addresses the existing problem of bolts being used to facilitate the installation of the angle grinder and circular saw blade during disassembly. However, this installation method requires tools, is time-consuming and labor-intensive, and is not conducive to replacing circular saw blades. The utility model specifically comprises an angle grinder 1, a rotating shaft 2, and a cutting blade 3. The rotating shaft 2 is rotatably connected to the angle grinder 1 and fixedly mounted on the output shaft of the angle grinder 1. When the angle grinder 1 is turned on, the rotating shaft 2 can be driven to rotate.

[0022] See also Figure 1 、 Figure 3 and Figure 4 A fixed disk 22 is movably mounted on the rotating shaft 2. A movable disk 21 is spaced in front of the fixed disk 22. The inner diameter of the movable disk 21 is larger than the outer diameter of the corresponding side of the rotating shaft 2. Both the movable disk 21 and the fixed disk 22 are collinear with the center of the rotating shaft 2. The cutting blade 3 is disposed between the movable disk 21 and the fixed disk 22. The cooperation between the movable disk 21 and the fixed disk 22 can fix the position of the cutting blade 3 on the rotating shaft 2.

[0023] Furthermore, a flexible pad 26 is glued to the end surface of the fixed disk 22 corresponding to the movable disk 21. The flexible pad 26 is disposed on the inner side of the adjacent guide rod 25. The flexible pad 26 is in movable contact with the cutting blade 3 and is disposed on the rear side of the cutting blade 3. The flexible pad 26 is made of flexible rubber. The flexible pad 26 of flexible rubber can protect the cutting blade 3 while also improving the fixing stability of the cutting blade 3.

[0024] See also Figure 4 and Figure 5A circular clamping block 27 is provided on the inner side of the movable disk 21. A boss 23 is provided on the rotating shaft 2 at a position corresponding to the movable disk 21. The boss 23 has a circular clamping groove 24. The number of clamping blocks 27 corresponds to the number of clamping grooves 24, and the clamping blocks 27 are movably connected to the inside of the clamping grooves 24. The width of the clamping block 27 and the width of the clamping groove 24 are equal. When disassembling the cutting blade 3, the movable disk 21 is rotated so that the inner and outer positions of the block 27 on the movable disk 21 and the clamping groove 24 correspond to each other, and the movable disk 21 is slid out from the rotating shaft 2 to replace the cutting blade 3; when installing the cutting blade 3, the cutting blade 3 is first sleeved on the rotating shaft 2 so that the cutting blade 3 and the flexible pad 26 are in contact; secondly, the block 27 and the position of the clamping groove 24 correspond to each other, the movable disk 21 is sleeved on the rotating shaft 2, and the movable disk 21 is in contact with the cutting blade 3; finally, the movable disk 21 is rotated so that the positions of the block 27 on the movable disk 21 and the clamping groove 24 are staggered, and the position of the cutting blade 3 can be stably fixed by the movable disk 21 and the fixed disk 22.

[0025] In this example, a guide rod 25 is provided in an annular shape on the end surface of the fixed disk 22 corresponding to the movable disk 21, and a hole slot is provided on the cutting blade 3 to facilitate the insertion of the guide rod 25. The length of the guide rod 25 is less than the thickness of the cutting blade 3, and the depth of the hole slot is less than the thickness of the cutting blade 3. The guide rod 25 is provided on the fixed disk 22, and a hole slot is provided at a position corresponding to the cutting blade 3. The guide rod 25 is rubbed inside the hole slot to limit the relative rotation of the cutting blade 3 and the fixed disk 22, while the movable disk 21 can limit the axial position of the cutting blade 3. As a result, the fixing stability of the cutting blade 3 on the angle grinder 1 is further improved.

[0026] Working principle: When replacing this easy-to-install wood saw blade, rotate the movable disk 21 so that the inner and outer positions of the block 27 on the movable disk 21 and the clamping groove 24 correspond to each other, and slide the movable disk 21 out from the rotating shaft 2 to replace the cutting blade 3; when installing a new cutting blade 3 on the electric drill, first sleeve the cutting blade 3 on the rotating shaft 2 and make the cutting blade 3 contact with the flexible pad 26; secondly, make the position of the block 27 correspond to the position of the clamping groove 24, sleeve the movable disk 21 on the rotating shaft 2, and make the movable disk 21 contact with the cutting blade 3; finally, rotate the movable disk 21 so that the positions of the block 27 on the movable disk 21 and the clamping groove 24 are staggered, and the position of the cutting blade 3 can be stably fixed by the movable disk 21 and the fixed disk 22.

[0027] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An easy-to-install wood saw blade comprising an angle grinder (1), a rotating shaft (2) and a cutting blade (3), characterized in that: The angle grinder (1) is rotatably connected to a rotating shaft (2), the rotating shaft (2) being fixedly mounted on an output shaft of the angle grinder (1), the rotating shaft (2) being movably sleeved with a fixed disk (22), a movable disk (21) being spaced in front of the fixed disk (22), the cutting disc (3) being arranged between the movable disk (21) and the fixed disk (22), a clamping block (27) being provided in an annular shape on the inner side of the movable disk (21), a boss (23) being provided at a position corresponding to the movable disk (21) on the rotating shaft (2), a clamping groove (24) being provided in an annular shape on the boss (23), the number of the clamping block (27) and the number of the clamping groove (24) corresponding to each other, and the clamping block (27) being movably connected to the inside of the clamping groove (24).

2. The easy-to-install wood saw blade according to claim 1, characterized in that: A guide rod (25) is provided in an annular shape on the end surface of the fixed disk (22) corresponding to the movable disk (21), and a hole groove is provided on the cutting disc (3) for facilitating the insertion of the guide rod (25).

3. The easy-to-install wood saw blade according to claim 2, characterized in that: The length of the guide rod (25) is smaller than the thickness of the cutting blade (3), and the depth of the hole groove is smaller than the thickness of the cutting blade (3).

4. The easy-to-install wood saw blade according to claim 1, characterized in that: A flexible pad (26) is glued to the end surface of the fixed disk (22) corresponding to the movable disk (21), and the flexible pad (26) is arranged on the inner side of the adjacent guide rod (25).

5. The easy-to-install wood saw blade according to claim 4, characterized in that: The flexible pad (26) is in active contact with the cutting blade (3), and the flexible pad (26) is arranged on the rear side of the cutting blade (3).

6. The easy-to-install wood saw blade according to claim 1, characterized in that: The inner diameter of the movable disk (21) is larger than the outer diameter of the corresponding side of the rotating shaft (2), and the movable disk (21) and the fixed disk (22) are both collinear with the center of the rotating shaft (2).

7. The easy-to-install wood saw blade according to claim 1, characterized in that: The widths of the clamping block (27) and the clamping slot (24) are equal.

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