A curved saw blade clamping structure of a single-hand clamping saw blade

Abstract

The utility model relates to clamping structure technical field discloses a single hand clamps curve saw blade clamping structure of saw blade of curve saw, including handle, the handle right -end surface sleeve joint has the sleeve, through the saw blade press into the assembly groove, utilize torsion spring drive assembly seat and the sleeve ring rotate, and make assembly seat rotate friction through arc block and fixed block, and make slide bar slip into the sleeve, extrude spring simultaneously, then assembly seat makes extrusion extrusion ball in assembly seat while rotating, to make two sets of clamping block clamp saw blade to reach the purpose of saw blade clamping, simultaneously again through the push sleeve ring, make sleeve ring synchronous drive assembly seat rotate on the sleeve, and make arc block and fixed block rotate, and make assembly seat drive extrusion ball rotate to with extrusion groove alignment, at this time again through spring push slide bar reset sliding in the sleeve, and make assembly groove push saw blade and eject from assembly seat, to be convenient for staff single hand to saw blade clamping.

Description

Technical Field

[0001] This utility model relates to the field of clamping structure technology, specifically to a jigsaw blade clamping structure for single-handed clamping of saw blades. Background Technology

[0002] As a power tool widely used for cutting materials such as wood, metal, and plastics, the jigsaw plays an important role in furniture manufacturing, decoration, and machinery maintenance due to its flexible curved cutting capabilities. The saw blade, as the core component of the jigsaw, directly affects work efficiency and safety through the ease and stability of its clamping.

[0003] Currently, most jigsaws on the market use traditional double wrenches or bolt-nut fastening methods for their saw blade clamping structures. This method requires the operator to use tools and both hands to loosen the fixing bolts, insert the saw blade, and then tighten the bolts, a cumbersome and time-consuming process. Especially in confined spaces or high-altitude operations, this two-handed operation is not only inconvenient but also poses significant safety hazards. Furthermore, frequent loosening and tightening operations can easily lead to wear on the bolts and nuts, reducing the stability of the clamping structure and affecting the cutting accuracy and lifespan of the saw blade. Therefore, this art provides a jigsaw saw blade clamping structure that allows for single-handed clamping to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide a jigsaw blade clamping structure for single-handed clamping of the saw blade, thereby solving the problems in the prior art.

[0005] This utility model provides the following technical solution: a jigsaw blade clamping structure for single-handed clamping of a saw blade, including a handle, a sleeve sleeved on the right end surface of the handle, a spring fixedly connected to the right end surface of the handle in the sleeve, a sliding rod fixedly connected to the other end of the spring, and the sliding rod slidably connected to the sleeve, two sets of clamping blocks symmetrically fixedly connected to the right end surface of the sliding rod, an assembly groove is opened at the middle position of the right end surface of the two sets of clamping blocks, a saw blade is slidably connected in the assembly groove, an assembly seat is slidably connected to the right end surface of the sleeve, a collar is slidably connected to the surface of the assembly seat, and a limit groove is opened on the outer wall of the assembly seat corresponding to the inner wall of the collar.

[0006] As a preferred embodiment of the above technical solution, two sets of guide grooves are symmetrically provided on the outer walls of the sleeves corresponding to the outer end surfaces of the two sets of guide blocks, and two sets of extrusion grooves are symmetrically provided on the inner wall of the mounting base on the left side of the arc block. Extrusion balls are rolled in both sets of extrusion grooves, and through holes are provided on the inner walls of the sleeves corresponding to the outer end surfaces of the two sets of extrusion balls. An auxiliary groove is provided on the rear end surface of the mounting base, and a limit post is fixedly connected to the outer wall of the slide rod in the auxiliary groove.

[0007] As a preferred embodiment of the above technical solution, the limiting block and the guide block are rectangular in shape, and the guide groove and the limiting groove are both rectangular grooves adapted to the limiting block and the guide block.

[0008] As a preferred embodiment of the above technical solution, both sets of extrusion grooves are designed as trapezoidal grooves, and the outer walls of both sets of extrusion balls are in contact with the inner walls of the two sets of extrusion grooves.

[0009] As a preferred embodiment of the above technical solution, a groove is provided on the rear end surface of the slide rod, and a slider is fixedly connected to the inner wall of the sleeve corresponding to the inner wall of the groove. The groove and the slider are slidably connected. A torsion spring is fixedly connected to the sleeve surface on the left side of the collar, and the other end of the torsion spring is in contact with the inner wall of the mounting base.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This invention involves pressing the saw blade into the assembly groove, using a torsion spring to rotate the assembly seat and collar, causing the assembly seat to rotate and rub against the fixed block via an arc block, while the sliding rod slides into the sleeve, simultaneously compressing the spring. Then, as the assembly seat rotates, a compression ball is squeezed within it, causing the compression ball to compress two sets of clamping blocks, thus clamping the saw blade. Simultaneously, by pushing the collar, the assembly seat rotates synchronously on the sleeve, causing the arc block and fixed block to rotate, and the assembly seat rotates the compression ball until it aligns with the compression groove. At this point, the spring pushes the sliding rod to return to its original position within the sleeve, and the assembly groove pushes the saw blade out of the assembly seat, allowing the operator to easily clamp the saw blade with one hand. Attached Figure Description

[0012] Figure 1 A three-dimensional structural diagram of a jigsaw blade clamping structure for single-handed clamping of saw blades;

[0013] Figure 2 This is a schematic diagram of a three-dimensional partial cross-sectional structure of a jigsaw blade clamping structure for single-handed clamping of saw blades;

[0014] Figure 3 A schematic diagram of the disassembled structure of the handle and sleeve in a jigsaw blade clamping structure for single-handed clamping of the saw blade;

[0015] Figure 4 A schematic diagram of the assembly seat and collar in a jigsaw blade clamping structure for single-handed clamping of saw blades;

[0016] Figure 5 This is a schematic diagram of the overall disassembled structure in a jigsaw blade clamping structure for single-handed clamping of the saw blade.

[0017] In the diagram: 1. Handle; 2. Sleeve; 3. Spring; 4. Slide rod; 5. Clamping block; 6. Assembly slot; 7. Saw blade; 8. Assembly base; 9. Collar; 10. Limiting slot; 11. Rubber ring; 12. Limiting block; 13. Arc block; 14. Fixing block; 15. Guide block; 16. Guide slot; 17. Extrusion slot; 18. Extrusion ball; 19. Through hole; 20. Auxiliary slot; 21. Limiting post; 22. Slide groove; 23. Slider; 24. Torsion spring. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] Please see Figures 1-5 As shown, this utility model provides a technical solution: a jigsaw blade clamping structure for single-handed clamping of saw blades, including a handle 1, a sleeve 2 sleeved on the right end surface of the handle 1, a spring 3 fixedly connected to the right end surface of the handle 1 in the sleeve 2, and a sliding rod 4 fixedly connected to the other end of each spring 3, with the sliding rod 4 slidably connected to the sleeve 2. Two sets of clamping blocks 5 are symmetrically fixedly connected to the right end surface of the sliding rod 4, and an assembly groove 6 is provided at the middle position of the right end surface of the two sets of clamping blocks 5. A saw blade 7 is slidably connected in the assembly groove 6. An assembly seat 8 is slidably connected to the right end surface of the sleeve 2, and a collar 9 is slidably connected to the surface of the assembly seat 8. A limiting groove 10 is provided on the outer wall of the assembly seat 8 corresponding to the inner wall of the collar 9. A rubber ring 11 is sleeved on the surface of the limiting groove 10. Two sets of limiting blocks 12 are fixedly connected to the inner wall of the collar 9 on the side facing the limiting groove 10. Two sets of arc blocks 13 are symmetrically fixedly connected to the inner wall of the assembly seat 8. The saw blade is located on the left side of the arc block 13. Two sets of fixing blocks 14 are symmetrically fixedly connected to the outer wall of the saw blade 7. Two sets of guide blocks 15 are symmetrically fixedly connected to the inner wall of the mounting base 8 corresponding to the front and rear outer walls of the saw blade 7. Two sets of guide grooves 16 are symmetrically opened on the outer wall of the sleeve 2 corresponding to the outer end surface of the two sets of guide blocks 15. Two sets of extrusion grooves 17 are symmetrically opened on the inner wall of the mounting base 8 on the left side of the arc block 13. Extrusion balls 18 are rolled in both sets of extrusion grooves 17. Through holes 19 are opened on the inner wall of the sleeve 2 corresponding to the outer end surface of the two sets of extrusion balls 18. An auxiliary groove 20 is opened on the rear end surface of the mounting base 8. A limit post 21 is fixedly connected to the outer wall of the slide rod 4 in the auxiliary groove 20. A slide groove 22 is opened on the rear end surface of the slide rod 4. A slider 23 is fixedly connected to the inner wall of the sleeve 2 corresponding to the inner wall of the slide groove 22. The slide groove 22 and the slider 23 are slidably connected. A torsion spring 24 is fixedly connected to the surface of the sleeve 2 on the left side of the collar 9. The other end of the torsion spring 24 is in contact with the inner wall of the mounting base 8.

[0020] Specifically, by pressing the saw blade 7 into the assembly groove 6, the torsion spring 24 drives the assembly seat 8 and the collar 9 to rotate, and the assembly seat 8 rotates and rubs against the fixed block 14 through the arc block 13, causing the slide rod 4 to slide into the sleeve 2, while simultaneously compressing the spring 3. Then, as the assembly seat 8 rotates, the compression ball 18 is compressed inside the assembly seat 8, causing the compression ball 18 to compress the two sets of clamping blocks 5, thereby clamping the saw blade 7, thus achieving the purpose of clamping the saw blade 7. At the same time, by pushing the collar 9, the collar 9 synchronously drives the assembly seat 8 to rotate on the sleeve 2, and causes the arc block 13 and the fixed block 14 to rotate, and the assembly seat 8 drives the compression ball 18 to rotate until it is aligned with the compression groove 17. At this time, the spring 3 pushes the slide rod 4 to return to its original position and slide within the sleeve 2, and the assembly groove 6 pushes the saw blade 7 out of the assembly seat 8, thus making it convenient for the operator to clamp the saw blade 7 with one hand.

[0021] As one implementation method in this embodiment, please refer to Figures 1-4 As shown, the limiting block 12 and the guide block 15 are rectangular in shape, and the guide groove 16 and the limiting groove 10 are both rectangular grooves adapted to the limiting block 12 and the guide block 15.

[0022] Specifically, the guide block 15 can be slidably connected to the sleeve 2, and the limiting block 12 can be slidably connected to the limiting groove 10, so that the collar 9, the mounting base 8, and the spring 3 are more stable when they are connected to each other, preventing the mounting base 8 and the collar 9 from becoming loose when used on the sleeve 2, which would affect the stability of the saw blade 7.

[0023] As one implementation method in this embodiment, please refer to Figures 1-5 As shown, both sets of extrusion grooves 17 are trapezoidal grooves, and the outer walls of both sets of extrusion balls 18 are in contact with the inner walls of both sets of extrusion grooves 17.

[0024] Specifically, when the mounting base 8 drives the arc block 13 and the saw blade 7 to rotate, the fixing block 14 on the saw blade 7, driven by the arc block 13, drives the extrusion ball 18 to move in the extrusion groove 17 and slide out of the extrusion groove 17, and rotate to fit with the mounting base 8. At the same time, the other end of the mounting base 8 slides in the through hole 19 and extrudes the clamping block 5, so that the clamping block 5 clamps the saw blade 7, thereby achieving the purpose of clamping the saw blade 7 with one hand.

[0025] Working principle: First, by pressing the saw blade 7 into the assembly groove 6, the torsion spring 24 drives the assembly seat 8 and the collar 9 to rotate. The assembly seat 8 rotates and rubs against the fixed block 14 through the arc block 13, causing the slide rod 4 to slide into the sleeve 2. At the same time, the spring 3 is compressed. Then, while the assembly seat 8 rotates, the compression ball 18 is compressed inside the assembly seat 8, causing the compression ball 18 to compress the two sets of clamping blocks 5, thereby clamping the saw blade 7. This achieves the purpose of clamping the saw blade 7. At the same time, by pushing the collar 9, the collar 9 synchronously drives the assembly seat 8 to rotate on the sleeve 2, and the arc block 13 and the fixed block 14 to rotate. The assembly seat 8 drives the compression ball 18 to rotate until it is aligned with the compression groove 17. At this time, the spring 3 pushes the slide rod 4 to return to its original position and slide within the sleeve 2, and the assembly groove 6 pushes the saw blade 7 out of the assembly seat 8, making it easy for the operator to clamp the saw blade 7 with one hand.

[0026] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A jigsaw blade clamping structure for single-handed clamping of saw blades, comprising a handle (1), characterized in that: A sleeve (2) is fitted onto the right end surface of the handle (1). A spring (3) is fixedly connected to the right end surface of the handle (1) in the sleeve (2). A sliding rod (4) is fixedly connected to the other end of the spring (3). The sliding rod (4) is slidably connected to the sleeve (2). Two sets of clamping blocks (5) are symmetrically fixedly connected to the right end surface of the sliding rod (4). An assembly groove (6) is provided at the middle position on the right end surface of the two sets of clamping blocks (5). A saw blade (7) is slidably connected in the assembly groove (6). An assembly seat (8) is slidably connected to the right end surface of the sleeve (2). A collar (9) is slidably connected to the surface of the assembly seat (8). A limit groove (10) is provided on the outer wall of the assembly seat (8) corresponding to the inner wall of the collar (9).

2. The jigsaw blade clamping structure for single-handed clamping of saw blades according to claim 1, characterized in that: The surface of the limiting groove (10) is fitted with a rubber ring (11). Two sets of limiting blocks (12) are fixedly connected to the inner wall of the collar (9) facing the limiting groove (10). Two sets of arc blocks (13) are symmetrically fixedly connected to the inner wall of the mounting base (8). Two sets of fixing blocks (14) are symmetrically fixedly connected to the outer wall of the saw blade (7) on the left side of the arc block (13). Two sets of guide blocks (15) are symmetrically fixedly connected to the inner wall of the mounting base (8) corresponding to the outer walls of the front and rear ends of the saw blade (7).

3. The jigsaw blade clamping structure for single-handed clamping of saw blades according to claim 2, characterized in that: Two sets of guide grooves (16) are symmetrically opened on the outer wall of the sleeve (2) corresponding to the outer end surface of the two sets of guide blocks (15). Two sets of extrusion grooves (17) are symmetrically opened on the inner wall of the mounting base (8) on the left side of the arc block (13). Extrusion balls (18) are rolled in both sets of extrusion grooves (17). Through holes (19) are opened on the inner wall of the sleeve (2) corresponding to the outer end surface of the two sets of extrusion balls (18). An auxiliary groove (20) is opened on the rear end surface of the mounting base (8). A limit post (21) is fixedly connected to the outer wall of the slide rod (4) in the auxiliary groove (20).

4. A jigsaw blade clamping structure for single-handed clamping of saw blades according to claim 3, characterized in that: The limiting block (12) and the guide block (15) are rectangular in shape, and the guide groove (16) and the limiting groove (10) are both rectangular grooves adapted to the limiting block (12) and the guide block (15).

5. A jigsaw blade clamping structure for single-handed clamping of saw blades according to claim 4, characterized in that: Both sets of extrusion grooves (17) are designed in a trapezoidal shape, and the outer walls of both sets of extrusion balls (18) are in contact with the inner walls of the two sets of extrusion grooves (17).

6. A jigsaw blade clamping structure for single-handed clamping of saw blades according to claim 3, characterized in that: The sliding rod (4) has a groove (22) on its rear end surface. A slider (23) is fixedly connected to the inner wall of the sleeve (2) corresponding to the inner wall of the groove (22). The groove (22) and the slider (23) are slidably connected. A torsion spring (24) is fixedly connected to the surface of the sleeve (2) on the left side of the collar (9). The other end of the torsion spring (24) is in contact with the inner wall of the mounting base (8).

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