Carving knife with carving knife head convenient to replace

By using a motor-driven connection structure and damper-assisted design, the problem of inconvenient replacement of existing engraving heads has been solved, enabling quick replacement and stable engraving, thus improving engraving efficiency and convenience.

CN224224812UActive Publication Date: 2026-05-12SHENZHEN HONG YUDA SEMICON CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN HONG YUDA SEMICON CO LTD
Filing Date
2025-04-12
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

The existing engraving cutter head is inconvenient to replace, resulting in low engraving efficiency and laborious work, and it is impossible to quickly change to a suitable cutter head according to the material and engraving details.

Method used

The connection structure is driven by a motor. The motor drives the connecting shaft and connecting ring to rotate, enabling quick replacement of the cutter head and stable engraving. The damper and spring assist in quick disassembly, and the power indicator light improves the ease of operation.

Benefits of technology

It enables quick tool change and stable engraving, improves engraving efficiency, reduces manpower consumption, and adapts to the needs of different materials and engraving details.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of gravers, and particularly relates to a graver with a graver head convenient to replace, which comprises a graver body, a battery jar is arranged inside the graver body, a motor is fixedly connected inside the battery jar, the output end of the motor is fixedly connected with a connecting shaft, and the other end of the connecting shaft is fixedly connected with a connecting ring. A mounting ring is arranged on the outer surface of the connecting ring, a tool bit body is fixedly connected to the other end of the mounting ring, a fixing rod is fixedly connected to the interior of the connecting ring, a mounting rod is fixedly connected to the bottom end of the fixing rod, a sliding groove is formed in the mounting ring, an inner groove is formed in the sliding groove, and a damper is fixedly connected to the interior of the inner groove. The motor in the battery groove can drive the connecting shaft and the tool bit body to rotate, the tool bit body rotates in materials such as wood needing to be carved, needed patterns can be carved on the materials rapidly, and therefore rapid carving can be carried out conveniently in a labor-saving mode.
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Description

Technical Field

[0001] This utility model relates to the field of carving knife technology, specifically a carving knife with an easy-to-replace carving knife head. Background Technology

[0002] A carving knife is a tool specifically designed for carving, cutting, and fine engraving, widely used in woodworking, stone carving, bone carving, sculpture, and other fields. Carving knives are typically made of hard metal, with sharp blades and various shapes to suit different carving requirements. They are suitable not only for traditional hand carving but also for modern CNC engraving and laser engraving techniques. When using them, it is essential to keep the blade sharp to ensure clear and precise carving results. The blade tip is a tool used for carving, cutting, and fine processing of various materials such as wood, stone, plastic, and metal. Different carving knife tips offer different engraving shapes.

[0003] The existing technology has the following defects or problems: The existing technology disclosed in CN208411241U is a hand carving knife, the structure of which includes a carving knife body, a sealing screw, a carving knife head and a blade. The carving knife body has a hollow structure inside. The sealing screw is connected to one end of the carving knife body through an internal thread. The carving knife head is connected to the other end of the carving knife body through an internal thread. The blade is fixedly connected to the top of the carving knife head.

[0004] The above-mentioned device features a hollow internal structure for the carving knife body, allowing different types of carving knife heads to be placed inside, saving space. The sealing screw at one end of the carving knife body effectively prevents the knife heads from falling out and being lost. The design is reasonable, the structure is simple, and it is easy to implement.

[0005] The carving knives mentioned above are generally one-piece designs, which do not have the ability to carve quickly. They require manual carving, which is quite laborious. Furthermore, during carving, it is necessary to select the appropriate blade head according to the different materials and the needs of carving details to ensure work efficiency and carving quality. Therefore, in order to address the above shortcomings, a carving knife with an easy-to-change carving blade head is proposed.

[0006] It should be noted that the above content falls within the inventor's technical knowledge and does not necessarily constitute prior art. Utility Model Content

[0007] In view of the shortcomings of the existing technology, this utility model provides a carving knife with an easy-to-replace carving head, which solves the existing problems.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a carving knife with an easy-to-replace carving head, comprising a blade body, a battery slot provided inside the blade body, a motor fixedly connected inside the battery slot, a connecting shaft fixedly connected to the output end of the motor, a connecting ring fixedly connected to the other end of the connecting shaft, a mounting ring provided on the outer surface of the connecting ring, and a blade head body fixedly connected to the other end of the mounting ring.

[0009] As a preferred embodiment of this utility model, a fixing rod is fixedly connected inside the connecting ring, and an installation rod is fixedly connected to the bottom end of the fixing rod.

[0010] As a preferred embodiment of this utility model, the mounting ring has a sliding groove inside, the sliding groove has an inner groove inside, and a damper is fixedly connected inside the inner groove.

[0011] As a preferred embodiment of this utility model, the outer surface of the mounting rod is slidably connected to the inside of the groove, and the bottom end of the mounting rod is engaged with the output end of the damper.

[0012] As a preferred embodiment of this utility model, a spring is fixedly connected to the outer surface of the damper, and the other end of the spring is fixedly connected to the inside of the inner groove.

[0013] As a preferred embodiment of this utility model, a limiting groove is provided at the other end of the blade, and multiple power indicator lights are provided on the outer surface of the blade.

[0014] As a preferred embodiment of this utility model, a limiting ring is fixedly connected to the outer surface of the connecting ring, and the outer surface of the limiting ring is rotatably connected to the inside of the limiting groove.

[0015] Compared with the prior art, this utility model provides a carving tool with an easy-to-replace carving head, which has the following advantages:

[0016] 1. This is a carving knife with an easy-to-change carving head. The motor inside the battery compartment can drive the connecting shaft and the cutting head body to rotate. By rotating the cutting head body, the desired pattern can be quickly carved into the wood or other materials to be carved, thus realizing quick carving with easy and labor-saving operation.

[0017] Second, this carving cutter, which facilitates the replacement of carving cutter heads, allows for quick connection and disassembly of the connecting ring and mounting ring, enabling the replacement of the cutter head body for easy use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the battery compartment of this utility model;

[0020] Figure 3 This is a schematic diagram of the cutter head mounting structure of this utility model;

[0021] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle.

[0022] In the diagram: 1. Blade body; 2. Battery slot; 3. Motor; 4. Connecting shaft; 5. Connecting ring; 6. Mounting ring; 7. Blade head body; 8. Fixing rod; 9. Mounting rod; 10. Slide groove; 11. Inner groove; 12. Damper; 13. Limiting groove; 14. Power indicator light; 15. Limiting ring; 16. Spring. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0025] like Figures 1-4 As shown, this utility model provides a technical solution: a carving knife that is easy to replace the carving head, including a blade 1, a battery slot 2 is provided inside the blade 1, a motor 3 is fixedly connected inside the battery slot 2, a connecting shaft 4 is fixedly connected to the output end of the motor 3, a connecting ring 5 is fixedly connected to the other end of the connecting shaft 4, an installation ring 6 is provided on the outer surface of the connecting ring 5, and a blade head body 7 is fixedly connected to the other end of the installation ring 6.

[0026] A limiting groove 13 is provided at the other end of the blade 1. Multiple power indicator lights 14 are provided on the outer surface of the blade 1. A limiting ring 15 is fixedly connected to the outer surface of the connecting ring 5. The outer surface of the limiting ring 15 is rotatably connected to the inside of the limiting groove 13.

[0027] In this embodiment, the battery compartment 2 supplies power to the internal motor 3. When the motor 3 is started, the output end of the motor 3 drives the connecting shaft 4 to rotate. The connecting shaft 4 drives the connecting ring 5 and the mounting ring 6 to rotate together. Thus, the mounting ring 6 drives the cutter head body 7 to rotate rapidly. The cutter head body 7 can then be used to quickly carve objects. When the cutter head body 7 rotates, the connecting ring 5 drives the limiting ring 15 to rotate inside the limiting groove 13 to prevent the rotation of the cutter head body 7 from being unstable. The cutter body 1 is easy for the operator to handle. The power indicator light 14 can indicate to the user how much power the device has remaining. Example

[0028] like Figures 1-4 As shown, a fixing rod 8 is fixedly connected inside the connecting ring 5, and a mounting rod 9 is fixedly connected to the bottom end of the fixing rod 8. A sliding groove 10 is opened inside the mounting ring 6, and an inner groove 11 is opened inside the sliding groove 10. A damper 12 is fixedly connected inside the inner groove 11. The outer surface of the mounting rod 9 is slidably connected inside the sliding groove 10. The bottom end of the mounting rod 9 is engaged with the output end of the damper 12. A spring 16 is fixedly connected to the outer surface of the damper 12, and the other end of the spring 16 is fixedly connected to the inside of the inner groove 11.

[0029] In this embodiment, when the cutter head body 7 needs to be replaced, simply rotate the mounting ring 6 and the cutter head body 7 to drive the fixing rod 8 and the mounting rod 9 to rotate in the slide groove 10. When the mounting rod 9 slides, the output end of the damper 12 inside it will slide out from the inside, thus separating the connecting ring 5 from the mounting ring 6. The damper 12 and the spring 16 are fixed by the inner groove 11, and the spring 16 assists in the reset operation of the damper 12.

[0030] The working principle of this embodiment is as follows: The battery compartment 2 supplies power to the internal motor 3. When the motor 3 is started, the output end of the motor 3 drives the connecting shaft 4 to rotate. The connecting shaft 4 drives the connecting ring 5 and the mounting ring 6 to rotate together. Thus, the mounting ring 6 drives the cutter head body 7 to rotate rapidly. The cutter head body 7 can then quickly carve objects. When the cutter head body 7 rotates, the connecting ring 5 drives the limiting ring 15 to rotate inside the limiting groove 13 to prevent the rotation of the cutter head body 7 from being unstable. The overall shape of the cutter body 1 makes it easy for the operator to handle. Secondly, when the cutter head body 7 needs to be replaced, simply rotate the mounting ring 6 and the cutter head body 7 to drive the fixing rod 8 and the mounting rod 9 to rotate in the slide groove 10. When the mounting rod 9 slides, the output end of the damper 12 inside it will slide out from the inside, thus separating the connecting ring 5 and the mounting ring 6. The damper 12 and the spring 16 are fixed by the inner groove 11. The spring 16 assists in the reset operation of the damper 12. The power indicator light 14 can indicate to the user how much power the device has remaining.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An engraving tool facilitating replacement of an engraving tool bit, the tool comprising: Includes a blade (1), the inside of which is provided a battery slot (2), a motor (3) is fixedly connected inside the battery slot (2), a connecting shaft (4) is fixedly connected to the output end of the motor (3), a connecting ring (5) is fixedly connected to the other end of the connecting shaft (4), an mounting ring (6) is provided on the outer surface of the connecting ring (5), and a blade head body (7) is fixedly connected to the other end of the mounting ring (6).

2. The engraving tool of claim 1, wherein: The connecting ring (5) is fixedly connected to a fixing rod (8), and the bottom end of the fixing rod (8) is fixedly connected to an installation rod (9).

3. The carving tool with an easily replaceable carving head according to claim 1, characterized in that: The mounting ring (6) has a sliding groove (10) inside, and an inner groove (11) is provided inside the sliding groove (10). A damper (12) is fixedly connected inside the inner groove (11).

4. A carving tool with an easily replaceable carving tip according to claim 2, characterized in that: The outer surface of the mounting rod (9) is slidably connected to the inside of the groove (10), and the bottom end of the mounting rod (9) is engaged with the output end of the damper (12).

5. A carving tool with an easily replaceable carving head according to claim 3, characterized in that: A spring (16) is fixedly connected to the outer surface of the damper (12), and the other end of the spring (16) is fixedly connected to the inside of the inner groove (11).

6. A carving tool with an easily replaceable carving tip according to claim 1, characterized in that: A limiting groove (13) is provided at the other end of the blade (1), and multiple power indicator lights (14) are provided on the outer surface of the blade (1).

7. A carving tool with an easily replaceable carving tip according to claim 1, characterized in that: The outer surface of the connecting ring (5) is fixedly connected to the limiting ring (15), and the outer surface of the limiting ring (15) is rotatably connected to the inside of the limiting groove (13).