Combined circular saw blade
By designing the annular fixing ring and sawtooth separation structure of the combined circular saw blade, the problem of overall replacement of sawtooth after wear in the prior art is solved, and a lower cost and convenient sawtooth replacement is achieved, reducing the cost of use.
Patent Information
- Application Number
- CN202420900256.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-28
AI Technical Summary
Existing circular saw blades need to be replaced as a whole after the sawtooth wears, resulting in high cost of use and inconvenient replacement process.
A combined circular saw blade is designed, adopting a separation design of annular fixing ring and sawtooth. The combination and separation of the annular fixing ring and the circular saw blade main body is achieved through the threaded connection between the press ring and the fixing ring, making it easier to replace the sawtooth and ring separately. Fixed ring.
The cost of using the circular saw blade is reduced, and the combination and separation operation of sawtooth and annular fixing ring is simplified, avoiding the need for overall replacement.
Smart Images
Figure CN222176178U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of circular saw blades, in particular to a combined circular saw blade. Background Art
[0002] Circular saw blade is a common cutting tool, which is widely used in wood processing and metal cutting.
[0003] In the prior art, there is a circular saw blade proposed in patent application number “CN201220320141.8”, which records that the circular saw blade includes a circular cutter disc, a mounting hole is provided at the center of the circular cutter disc, and a plurality of saw teeth are provided in the circumferential direction of the circular cutter disc.
[0004] However, the circular saw blade in the above patent has its teeth and circular cutter disc directly fixed together. After the circular saw blade is used for a long time, when the teeth are worn, the circular saw blade needs to be replaced as a whole, which increases the cost of using the circular saw blade and makes it inconvenient to use. Utility Model Content
[0005] The purpose of the utility model is to provide a combined circular saw blade to solve the problems raised in the above background technology.
[0006] The purpose of the utility model can be achieved through the following technical solutions:
[0007] A combined circular saw blade comprises a circular saw blade body, an annular fixing ring is sleeved on the outside of the circular saw blade body, saw teeth are fixedly connected to the outer circumference of the annular fixing ring, limiting grooves in an annular array are opened at the bottom of the annular fixing ring, and a shielding piece used in conjunction with the limiting grooves is fixedly connected to the circular saw blade body.
[0008] The top of the circular saw blade body is fixedly connected with a positioning component in a ring array, the positioning component includes a fixing sleeve, a retractable clamping plate is arranged on the fixing sleeve, a fixing ring is fixedly connected with the top of the circular saw blade body, an outer surface of the fixing ring is provided with an external thread, an assembly pressure ring is arranged on the fixing ring, and an inner surface of the assembly pressure ring is provided with an internal thread to realize a threaded connection between the assembly pressure ring and the fixing ring.
[0009] Preferably, the fixed sleeve is fixed to the top of the circular saw blade body, a partition plate is fixedly connected inside the fixed sleeve, an adjusting spring is fixedly connected to one side of the partition plate, one end of the adjusting spring is fixedly connected to a resistance block, and the top of the resistance block is inclined.
[0010] Preferably, the abutment block and the pressing plate are respectively arranged on both sides of the partition plate, a fixed shaft is fixedly connected between the abutment block and the pressing plate, and the fixed shaft and the partition plate are slidably connected.
[0011] Preferably, a positioning groove is provided on the outer surface of the circular saw blade body, and a positioning block used in conjunction with the positioning groove is fixedly connected to the inner circumference of the annular fixing ring.
[0012] Preferably, a through hole is provided on the assembly pressure ring, an anti-slip groove is provided on the outer side of the assembly pressure ring, and an anti-slip protrusion is fixedly connected to the top of the assembly pressure ring.
[0013] Preferably, a limiting guide rail is fixedly connected to the main body of the circular saw blade, a limiting pressure plate is slidably connected to the limiting guide rail, the limiting pressure plate is used to press the outer surface of the assembly pressure ring, a fixing block is fixedly connected to the main body of the circular saw blade, a return spring is fixedly connected to the fixing block, and one end of the return spring is fixedly connected to the limiting pressure plate.
[0014] Beneficial effects of the utility model:
[0015] The utility model completes the combination of the annular fixing ring and the circular saw blade body by sleeve-arranging the annular fixing ring onto the circular saw blade body and then threading the assembly pressure ring onto the fixing ring so that the clamping plate positions the top of the annular fixing ring and the shielding plate positions the bottom of the annular fixing ring. This facilitates the replacement of the saw teeth and the annular fixing ring separately when the saw teeth are worn, without having to replace the circular saw blade as a whole, thereby reducing the use cost of the circular saw blade. At the same time, the combination and separation operations of the saw teeth and the annular fixing ring are simple and convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the prior art description are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2 This utility model Figure 1 A schematic diagram of the structure of the main body of a medium circular saw blade;
[0019] Figure 3 This utility model Figure 2 A schematic diagram of the structure of the bottom of the main body of a medium circular saw blade;
[0020] Figure 4 This utility model Figure 2 Cross-sectional view of the fixing sleeve.
[0021] The reference numerals in the figures are as follows:
[0022] 1. Circular saw blade body, 2. Annular fixing ring, 3. Saw teeth, 4. Limiting groove, 5. Shielding piece, 6. Fixed sleeve, 7. Clamping plate, 8. Fixed ring, 9. Assembly pressure ring, 10. Partition plate, 11. Adjustment spring, 12. Resistance pressure block, 13. Fixed shaft, 14. Positioning groove, 15. Positioning block, 16. Through hole, 17. Anti-slip protrusion, 18. Limiting guide rail, 19. Limiting pressure plate, 20. Fixed block, 21. Reset spring. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] A combined circular saw blade comprises a circular saw blade body 1, an annular fixing ring 2 is sleeved on the outside of the circular saw blade body 1, saw teeth 3 are fixedly connected to the outer circumference of the annular fixing ring 2, limiting grooves 4 in an annular array are opened on the bottom of the annular fixing ring 2, and a shielding piece 5 used in conjunction with the limiting grooves 4 is fixedly connected to the circular saw blade body 1.
[0025] The top of the circular saw blade body 1 is fixedly connected with a positioning component in a ring array, the positioning component includes a fixing sleeve 6, a retractable clamping plate 7 is arranged on the fixing sleeve 6, and a fixing ring 8 is fixedly connected to the top of the circular saw blade body 1. The outer surface of the fixing ring 8 is provided with an external thread, and an assembly pressure ring 9 is arranged on the fixing ring 8. The inner surface of the assembly pressure ring 9 is provided with an internal thread to realize the threaded connection between the assembly pressure ring 9 and the fixing ring 8.
[0026] like Figure 1 , Figure 2 and Figure 4 The circular saw blade body 1 is made of hard alloy, and the annular fixing ring 2 outside the circular saw blade body 1 is detachable. The interior of the fixing sleeve 6 has a cavity, so that one end of the clamping plate 7 is located inside the fixing sleeve 6.
[0027] The fixing sleeve 6 is fixed to the top of the circular saw blade body 1, and a partition plate 10 is fixedly connected inside the fixing sleeve 6, an adjusting spring 11 is fixedly connected to one side of the partition plate 10, and a resistance pressure block 12 is fixedly connected to one end of the adjusting spring 11, and the top of the resistance pressure block 12 is inclined.
[0028] like Figure 2 and Figure 4 One end of the abutting pressing block 12 and the pressing plate 7 both extend out of the fixing sleeve 6 , and one end of the abutting pressing block 12 abuts against the outer surface of the fixing ring 8 .
[0029] The abutting pressing block 12 and the pressing plate 7 are respectively arranged on both sides of the partition plate 10 , and a fixed shaft 13 is fixedly connected between the abutting pressing block 12 and the pressing plate 7 , and the fixed shaft 13 and the partition plate 10 are slidably connected.
[0030] like Figure 2 and Figure 4 There is an opening on the partition plate 10, so that the fixed shaft 13 can pass through the partition plate 10, thereby realizing a sliding connection between the partition plate 10 and the fixed shaft 13.
[0031] The outer surface of the circular saw blade body 1 is provided with a positioning groove 14 , and the inner circumference of the annular fixing ring 2 is fixedly connected with a positioning block 15 used in conjunction with the positioning groove 14 .
[0032] like Figure 2 and Figure 4 When the annular fixing ring 2 is located outside the circular saw blade body 1 , the positioning block 15 is inserted into the positioning groove 14 , thereby preventing the circular saw blade body 1 and the annular fixing ring 2 from rotating relative to each other.
[0033] The assembly pressing ring 9 is provided with a through hole 16 , the outer side of the assembly pressing ring 9 is provided with anti-skid grooves, and the top of the assembly pressing ring 9 is fixedly connected with an anti-skid protrusion 17 .
[0034] like Figure 1 By providing the anti-skid grooves and the anti-skid protrusions 17 on the assembly pressure ring 9, the assembly pressure ring 9 can be conveniently rotated manually.
[0035] A limiting guide rail 18 is fixedly connected to the circular saw blade body 1, and a limiting pressure plate 19 is slidably connected to the limiting guide rail 18. The limiting pressure plate 19 is used to press the outer surface of the assembly pressure ring 9. A fixing block 20 is fixedly connected to the circular saw blade body 1, and a reset spring 21 is fixedly connected to the fixing block 20. One end of the reset spring 21 is fixedly connected to the limiting pressure plate 19.
[0036] like Figure 1 and Figure 2 The limiting guide rail 18 can limit the movement of the limiting pressure plate 19. At the same time, there is a cavity at the bottom of the limiting pressure plate 19, and the height of the top of the cavity is above the height of the top of the fixing ring 8.
[0037] The working principle of a combined circular saw blade provided by the utility model is as follows:
[0038] When the circular saw blade needs to be assembled, the annular fixing ring 2 is sleeved onto the circular saw blade body 1, and the shielding sheet 5 is inserted into the limiting groove 4, the bottom of the annular fixing ring 2 is positioned, and then the limiting pressing plate 19 is pressed away from the fixing ring 8, and the assembly pressing ring 9 is rotated to be threadedly connected to the fixing ring 8;
[0039] The assembly pressure ring 9 will squeeze the inclined surface of the resistance pressure block 12, and press the resistance pressure block 12 into the interior of the fixed sleeve 6. The resistance pressure block 12 drives the clamping plate 7 to move through the fixed shaft 13. The clamping plate 7 moves to the outside of the annular fixing ring 2, and positions the top of the annular fixing ring 2, so that the annular fixing ring 2 cannot be separated from the circular saw blade body 1, and the assembly of the circular saw blade is completed. At the same time, the reset spring 21 pushes the limiting pressure plate 19, so that the limiting pressure plate 19 fits on the assembly pressure ring 9 to prevent the assembly pressure ring 9 from loosening.
[0040] On the contrary, when the limiting pressure plate 19 is pressed down and the assembly pressure ring 9 is rotated to be removed, the adjusting spring 11 pushes the resistance pressure block 12 and separates the clamping plate 7 and one side of the annular fixing ring 2. At this time, the annular fixing ring 2 can be removed from the circular saw blade body 1.
[0041] Compared with the related art, the combined circular saw blade provided by the utility model has the following beneficial effects:
[0042] The utility model completes the combination of the annular fixing ring 2 and the circular saw blade body 1 by sleeve-mounting the annular fixing ring 2 onto the circular saw blade body 1 and then threading the assembly pressure ring 9 onto the fixing ring 8, so that the clamping plate 7 positions the top of the annular fixing ring 2 and the shielding plate 5 positions the bottom of the annular fixing ring 2, thereby completing the combination of the annular fixing ring 2 and the circular saw blade body 1. When the saw teeth 3 are worn, it is convenient to replace the saw teeth 3 and the annular fixing ring 2 separately without replacing the circular saw blade as a whole, thereby reducing the use cost of the circular saw blade. At the same time, the combination and separation operations of the saw teeth and the annular fixing ring 2 are simple and convenient to use.
[0043] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.
Claims
1. A combined circular saw blade, comprising a circular saw blade body (1), characterized in that: The outer part of the circular saw blade body (1) is provided with an annular fixing ring (2), the outer circumference of the annular fixing ring (2) is fixedly connected with saw teeth (3), the bottom of the annular fixing ring (2) is provided with limiting grooves (4) in an annular array, and a shielding piece (5) used in conjunction with the limiting grooves (4) is fixedly connected to the circular saw blade body (1); The top of the circular saw blade body (1) is fixedly connected to a positioning assembly in a ring array, the positioning assembly comprises a fixing sleeve (6), a retractable clamping plate (7) is arranged on the fixing sleeve (6), a fixing ring (8) is fixedly connected to the top of the circular saw blade body (1), the outer surface of the fixing ring (8) is provided with an external thread, an assembly pressure ring (9) is arranged on the fixing ring (8), and the inner surface of the assembly pressure ring (9) is provided with an internal thread, so as to realize a threaded connection between the assembly pressure ring (9) and the fixing ring (8).
2. A combined circular saw blade according to claim 1, characterized in that: The fixing sleeve (6) is fixed to the top of the circular saw blade body (1), a partition plate (10) is fixedly connected inside the fixing sleeve (6), an adjusting spring (11) is fixedly connected to one side of the partition plate (10), one end of the adjusting spring (11) is fixedly connected to a resisting pressure block (12), and the top of the resisting pressure block (12) is arranged tilted.
3. A combined circular saw blade according to claim 2, characterized in that: The abutting pressure block (12) and the pressing plate (7) are respectively arranged on both sides of the partition plate (10); a fixed shaft (13) is fixedly connected between the abutting pressure block (12) and the pressing plate (7); and the fixed shaft (13) and the partition plate (10) are slidably connected.
4. A combined circular saw blade according to claim 1, characterized in that: The outer surface of the circular saw blade body (1) is provided with a positioning groove (14), and the inner circumference of the annular fixing ring (2) is fixedly connected with a positioning block (15) used in conjunction with the positioning groove (14).
5. The combined circular saw blade according to claim 1, characterized in that: The assembly pressure ring (9) is provided with a through hole (16), the outer side of the assembly pressure ring (9) is provided with anti-skid grooves, and the top of the assembly pressure ring (9) is fixedly connected with an anti-skid protrusion (17).
6. A combined circular saw blade according to claim 5, characterized in that: The circular saw blade body (1) is fixedly connected to a limiting guide rail (18), the limiting guide rail (18) is slidably connected to a limiting pressure plate (19), the limiting pressure plate (19) is used to press the outer surface of the assembly pressure ring (9), the circular saw blade body (1) is fixedly connected to a fixing block (20), the fixing block (20) is fixedly connected to a return spring (21), and one end of the return spring (21) is fixedly connected to the limiting pressure plate (19).