A craft tool with detachable blades

Abstract

This utility model relates to the field of hand tools, specifically a crafting tool with a detachable blade. It includes a blade, a connecting kit, and a fastening assembly. The connecting kit includes a stud and an outer cylinder fitted around the stud's outer periphery, the outer cylinder having a mounting hole for the blade tip to pass through. The fastening assembly includes a connecting sleeve threaded to the stud and an inner cylinder fitted between the stud and the outer cylinder. When the connecting sleeve is screwed in, it pushes the inner cylinder forward, using the inner cylinder to press the blade against the mounting hole. This utility model allows for the replacement of different blades as needed, offering good flexibility, and allows for replacement of damaged blade components at a low cost.

Description

Technical Field

[0001] This utility model relates to the field of hand tools, and in particular to a craft tool with a detachable blade. Background Technology

[0002] In gardening and outdoor activities, tools are commonly used. Some of these tools contain cutting blades. Most tools are one-piece fixed structures, folding structures, or telescopic structures. Their size is generally no longer than the length of a palm. The blades cannot be disassembled, so when a blade is damaged, the entire tool must be purchased again, which is wasteful. Furthermore, different blades cannot be replaced according to usage needs, resulting in poor flexibility. Utility Model Content

[0003] The purpose of this invention is to address the problems existing in the background technology by proposing a crafting tool with detachable blades. This tool allows for the replacement of different blades as needed, offering good flexibility and enabling the replacement of damaged blade parts at a low cost.

[0004] The present invention provides a crafting tool with a detachable blade, comprising a blade, a connecting kit, and a fastening assembly. The connecting kit includes a stud and an outer cylinder fitted around the outer periphery of the stud, the outer cylinder having a mounting hole for the blade tip to pass through. The fastening assembly includes a connecting cylinder threaded to the stud and an inner cylinder fitted between the stud and the outer cylinder. When the connecting cylinder is screwed in, it pushes the inner cylinder forward and uses the inner cylinder to press the blade against the mounting hole.

[0005] Preferably, both the inner and outer cylinders are rectangular cylindrical structures.

[0006] Preferably, the mounting hole has grooves at both ends.

[0007] Preferably, both the inner and outer cylinders are cylindrical structures.

[0008] Preferably, the mounting hole is a "T" shaped notch, and the rear end of the mounting hole has a positioning groove.

[0009] Preferably, the inner cylinder has a strip-shaped hole and a clamping groove at the front end.

[0010] Preferably, the stud has a through hole extending radially, the outer cylinder has a through hole, and bolts are inserted through the through hole, the strip hole and the through hole, with a nut threaded onto the end of the bolt.

[0011] Preferably, the stud is fitted with a washer, a rubber ring, and a washer arranged in sequence around its outer periphery.

[0012] Preferably, the cutting tool is a blade, and both sides of the blade end have protruding bosses, and the blade is installed along the length of the outer cylinder.

[0013] Preferably, the cutting tool is a hoe, which is installed perpendicular to the outer cylinder.

[0014] Compared with existing technologies, this utility model has the following beneficial technical effects: It allows for the replacement of different cutting tools according to usage needs, offering good flexibility, and allows for replacement of damaged tool parts at a lower cost. When installing the tool, the connecting sleeve is screwed into the stud, and the connecting sleeve pushes the inner cylinder forward, which in turn pushes the tool forward, securing the tool to the mounting hole of the outer cylinder. When removing the tool, simply rotate the connecting sleeve in the opposite direction to release the inner cylinder's fastening, allowing for easy removal of the tool. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention when the blade is clamped in Embodiment 1;

[0016] Figure 2 for Figure 1 Exploded view of the structure;

[0017] Figure 3 This is a schematic diagram of the structure of the first embodiment of the present invention when the hoe is clamped;

[0018] Figure 4 This is a schematic diagram of the structure of the blade clamping in Embodiment 2 of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the second embodiment of the present invention when the hoe is clamped;

[0020] Figure 6 This is a structural schematic diagram of inner cylinder two and outer cylinder two.

[0021] Reference numerals: 1. Connecting cylinder; 2. Stud; 201. Through hole one; 3. Gasket one; 4. Rubber ring; 5. Gasket two; 6. Inner cylinder one; 601. Strip hole one; 602. Tightening groove one; 7. Outer cylinder one; 701. Through hole two; 702. Mounting hole one; 703. Groove; 8. Bolt; 9. Blade; 91. Boss; 10. Hoe; 11. Inner cylinder two; 111. Strip hole two; 112. Tightening groove two; 12. Outer cylinder two; 121. Through hole three; 122. Mounting hole two; 123. Positioning groove. Detailed Implementation

[0022] Example 1

[0023] like Figures 1-3 As shown in the figure, this embodiment presents a crafting tool with a detachable blade, including a cutting tool, a connecting kit, and a fastening assembly.

[0024] The connecting assembly includes a stud 2 and an outer cylinder 7 fitted around the outer periphery of the stud 2. The stud 2 has a radially penetrating through hole 201. The outer cylinder 7 has a mounting hole 702 for the tool tip to pass through. Two mounting holes 702 are distributed opposite each other on the outer cylinder 7, and both ends of the mounting holes 702 have grooves 703. The outer cylinder 7 also has a second through hole 701.

[0025] The fastening assembly includes a connecting sleeve 1 threadedly connected to the stud 2 and an inner sleeve 6 sleeved between the stud 2 and the outer sleeve 7. When the connecting sleeve 1 is screwed in, it pushes the inner sleeve 6 forward and uses the inner sleeve 6 to press the tool against the mounting hole 702. The inner sleeve 6 has a slotted hole 601 and a clamping groove 602 at the front end. The inner sleeve 6 can press the end of the tool against the groove 703 and the clamping groove 602, resulting in better anti-dislodgement effect.

[0026] like Figure 2 As shown, both the inner cylinder 6 and the outer cylinder 7 are rectangular cylindrical structures, meaning that the cross-sectional edge outline is rectangular.

[0027] like Figure 1 and Figure 2 As shown, bolts 8 are inserted through through hole 201, through hole 2, and through hole 701, with nuts threaded onto the ends of bolts 8. After bolts 8 are passed through outer cylinder 7, inner cylinder 6, and stud 2, nuts are tightened on the other side to connect the three components. However, because inner cylinder 6 has a through hole, it has a certain range of motion and can move inside outer cylinder 7 to hold the tool in place or release it from the tool.

[0028] like Figure 1 and Figure 2 As shown, the cutting tool is a blade 9 with a sharpened edge and a pointed tip. Both ends of the blade 9 have protruding bosses 91. The blade 9 is installed along the length of the outer cylinder 7. The maximum width of the blade 9 (the distance between the outermost ends of the two bosses 91) is less than the diagonal length of the rectangular outline inside the outer cylinder 7, allowing the blade 9 to be inserted into the inner side of the outer cylinder 7. However, the maximum width of the blade 9 is greater than the distance between the two mounting holes 702 on the outer cylinder 7. After inserting the blade 9 into the inner side of the outer cylinder 7, the blade 9 is rotated, causing the two bosses 91 to rotate to the inside of the two mounting holes 702, aligning the bosses 91 with the grooves 703. Then rotate the connecting cylinder 1, and the connecting cylinder 1 screws into the stud 2. The connecting cylinder 1 pushes the inner cylinder 6 forward, and the inner cylinder 6 presses the blade 9 against the groove 703. At the same time, it can lock the boss 91 into the inner side of the clamping groove 602. The boss 91 is located between the front groove 703 and the clamping groove 602, and is not easy to loosen.

[0029] like Figure 3As shown, the cutting tool can also be a hoe 10. The hoe 10 has a sharpened front end and is installed perpendicular to the outer cylinder 7. One end of the hoe 10 is narrower than the other end, and the shorter end is inserted into the two mounting holes 702 of the outer cylinder 7 until it cannot move due to its own structural limitations. At this time, the connecting cylinder 1 is rotated, and the connecting cylinder 1 screws into the stud 2. The connecting cylinder 1 pushes the inner cylinder 6 forward, and the inner cylinder 6 presses the hoe 10 against the mounting holes 702. When using the hoe 10 to hoe the ground or perform other operations, the wider end of the hoe 10 blocks both ends of the mounting holes 702 along their length, making it less likely to fall off and ensuring stable use.

[0030] Alternatively, washers 3, 4, and 5 can be sequentially fitted around the outer periphery of stud 2. When connecting cylinder 1 is screwed forward, it pushes washers 3, 4, and 5 forward, while washer 5 pushes inner cylinder 6 forward, using inner cylinder 6 to secure the tool. By adding washers 3, 4, and 5, the stability and anti-loosening properties during tightening can be improved.

[0031] The outer circumference of the connecting cylinder 1 has anti-slip texture to increase friction when the user holds it, improve grip reliability, and facilitate related operations. In addition, the rear end of the connecting cylinder 1 is provided with an internal thread, which can be connected to a connecting rod with an external thread, thereby extending the overall length of the tool and expanding the user's operating space and work range.

[0032] This embodiment allows for the replacement of different cutting tools as needed, offering good flexibility. When a tool is damaged, a new tool component can be replaced at a low cost. To install the tool, screw the connecting sleeve 1 onto the stud 2. Push the inner cylinder 6 forward using the connecting sleeve 1, which in turn pushes the tool forward, securing it to the mounting hole 702 of the outer cylinder 7. To remove the tool, rotate the connecting sleeve 1 in the opposite direction. This disengages the connecting sleeve 1 from the inner cylinder 6, releasing the inner cylinder 6 from the tool's fastening. The tool can then be removed and replaced with a new one. When not in use, all components can be disassembled for easy storage.

[0033] Example 2

[0034] like Figures 4-6 As shown, this embodiment proposes a detachable blade crafting tool. The difference between this embodiment and the first embodiment is that the inner cylinder 6 is replaced with the inner cylinder 11 and the outer cylinder 7 is replaced with the outer cylinder 12. Both the inner cylinder 11 and the outer cylinder 12 are cylindrical structures.

[0035] like Figure 6 As shown, the inner cylinder 2 11 has a strip-shaped hole 2 111 and a clamping groove 2 112 at the front end, which is used to engage and clamp the boss 91 of the blade 9.

[0036] like Figure 4 and Figure 6 As shown, the outer cylinder 12 has two mounting holes 122 evenly distributed around its central axis. The mounting holes 122 are T-shaped notches. A positioning groove 123 is located on one side of the rear end of each mounting hole 122. The positioning groove 123 has a guide slope to facilitate the insertion of the protrusion 91 of the blade 9 into the positioning groove 123. The outer cylinder 12 also has a through hole 121 and a strip-shaped hole 111 for the bolt 8 to pass through.

[0037] like Figure 4 and Figure 6 As shown, when installing the blade 9 onto the outer cylinder 12, the blade 9 is passed through the mounting hole 122 in the form of a "T" shaped notch. Then, the blade 9 is rotated to align the boss 91 with the positioning groove 123 and move it into the positioning groove 123. Next, the connecting cylinder 1 is rotated, and the connecting cylinder 1 is screwed into the stud 2. The connecting cylinder 1 pushes the inner cylinder 11 forward, and the inner cylinder 11 presses the blade 9 against the mounting hole 122. At the same time, it can lock the boss 91 into the inner side of the clamping groove 112. The boss 91 is located between the front side of the inner wall of the mounting hole 122 and the clamping groove 112, making it difficult to loosen.

[0038] like Figure 5 and Figure 6 As shown, when installing the hoe 10 onto the outer cylinder 2 12, the hoe 10 is passed through the two mounting holes 2 122 from the side. Then, the connecting cylinder 1 is rotated and screwed into the stud 2. The connecting cylinder 1 pushes the inner cylinder 2 11 forward, and the inner cylinder 2 11 presses the hoe 10 against the inner wall of the mounting hole 2 122. The hoe 10 is stuck at both ends of the mounting hole 2 122 and is not easy to fall off.

[0039] In this embodiment, the rectangular tube in Embodiment 1 is replaced with a cylindrical tube, achieving the fastening and unfastening of the blade in a different structural form. Users can choose to use the appropriate inner and outer tubes according to their own needs. The cylindrical inner tube 11 and outer tube 12 can also achieve a clamping fastening of the blade 9 or hoe 10, and the blade 9 or hoe 10 can be easily removed during disassembly.

[0040] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A crafting tool with a detachable blade, characterized in that, include: Knives; The connecting kit includes a stud (2) and an outer cylinder fitted on the outer periphery of the stud (2), the outer cylinder having a mounting hole for the tip of a tool to pass through; The fastening assembly includes a connecting sleeve (1) threaded to the stud (2) and an inner sleeve fitted between the stud (2) and the outer sleeve. When the connecting sleeve (1) is screwed in, it pushes the inner sleeve forward and uses the inner sleeve to press the tool against the mounting hole.

2. A crafting tool with a detachable blade according to claim 1, characterized in that, Both the inner and outer cylinders are rectangular cylindrical structures.

3. A crafting tool with a detachable blade according to claim 2, characterized in that, The mounting hole has grooves (703) at both ends.

4. A crafting tool with a detachable blade according to claim 1, characterized in that, Both the inner and outer cylinders are cylindrical structures.

5. A crafting tool with a detachable blade according to claim 4, characterized in that, The mounting hole is a "T" shaped notch, and there is a positioning groove (123) on one side of the rear end of the mounting hole.

6. A crafting tool with a detachable blade according to claim 2 or 4, characterized in that, The inner cylinder has a strip-shaped hole and a clamping groove at the front end.

7. A crafting tool with a detachable blade according to claim 6, characterized in that, The stud (2) has a through hole (201) that runs radially through it. The outer cylinder has a through hole. Bolts (8) are inserted through the through hole (201), the strip hole and the through hole. A nut is threaded onto the end of the bolt (8).

8. A crafting tool with a detachable blade according to claim 1, characterized in that, The stud (2) is fitted with a washer (3), a rubber ring (4) and a washer (5) arranged in sequence on its outer periphery.

9. A crafting tool with a detachable blade according to claim 1, characterized in that, The cutting tool is a blade (9), and the blade (9) has protruding bosses (91) on both sides of its end. The blade (9) is installed along the length of the outer cylinder.

10. A crafting tool with a detachable blade according to claim 1, characterized in that, The cutting tool is a hoe (10), which is installed in a direction perpendicular to the outer cylinder.

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