Multifunctional cutter

Abstract

The multifunctional cutter comprises a cutter head, a cutter handle, a clamping assembly and a limiting sleeve, the cutter head is a blade type cutter head or a screwdriver type cutter head, the cutter handle comprises a rod body and a connecting part which are integrally formed, the clamping assembly is detachably connected to the cutter handle and used for clamping the cutter head, and the limiting sleeve is detachably connected to the connecting part and used for clamping the cutter head. The limiting device is used for limiting the position of the clamping assembly relative to the rod body, the clamping assembly comprises a first clamping piece and a second clamping piece which are arranged in a split mode, the first clamping piece is movably connected with the second clamping piece, when the first clamping piece is buckled to the second clamping piece, two clamping parts are formed, the two clamping parts are defined to be the first clamping part and the second clamping part respectively, and the first clamping part and the second clamping part are arranged oppositely. One of the first clamping part and the second clamping part is used for clamping a blade type tool bit, and the other one of the first clamping part and the second clamping part is used for clamping a screwdriver type tool bit; by means of the arrangement, the application range of the knife handle is enlarged, a plurality of corresponding knife handles do not need to be purchased according to different types of knife heads, the purchase cost of a user is reduced, the structure is simple, assembly and disassembly are convenient, and batch production of factories is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of carving tools, and in particular relates to a multifunctional tool. Background Art

[0002] A carving knife refers to a variety of cutting-edge steel carving tools with a handle at the back for easy gripping. The tip and width of the carving knife's blade are determined by the depth and width of the line to be carved. There are many types of carving knives available today, and they can be divided into blade type and screwdriver type according to the shape of the blade.

[0003] The blade of a carving knife is usually fixed to the handle. However, due to the inevitable force of carving, the blade will be damaged after long-term use, which will reduce the carving accuracy and even make carving impossible. The user has to purchase a new carving knife, which is costly. To address this problem, some existing carving knives have a detachable connection between the blade head and the handle. After the blade head is damaged, the blade head can be replaced and the handle can be used continuously, which greatly reduces the user's cost. However, the existing handle is usually corresponding to the type of blade head. Blade-type blade heads and screwdriver-type blade heads correspond to different handles, and the scope of application is relatively small. In addition, due to the inevitable production precision errors during the production process, the existing detachable blade head may be unstable when connected to the handle. When carving, the blade head is subjected to force, and there will be partial offset between the blade head and the handle, which seriously affects the user experience and even affects the carving effect. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a multifunctional tool that can be adapted to both blade-type tool heads and screwdriver-type tool heads.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] The utility model provides a multifunctional tool, comprising:

[0007] A cutter head, wherein the cutter head is a blade-type cutter head or a screwdriver-type cutter head;

[0008] A knife handle, the knife handle comprising an integrally formed rod body and a connecting portion;

[0009] A clamping assembly, the clamping assembly being detachably connected to the tool handle and used for clamping the tool head;

[0010] a limiting sleeve, which is detachably connected to the connecting portion and is used to limit the position of the clamping assembly relative to the rod body;

[0011] The clamping assembly includes a first clamping member and a second clamping member that are separately provided. The first clamping member is movably connected to the second clamping member. When the first clamping member is buckled with the second clamping member, two clamping parts are formed. The two clamping parts are defined as the first clamping part and the second clamping part respectively.

[0012] One of the first clamping portion and the second clamping portion is used to clamp the blade-type bit, and the other is used to clamp the screwdriver-type bit.

[0013] As a preferred embodiment, one of the first clamping portion and the second clamping portion for clamping the screwdriver bit is provided with a plurality of mutually connected clamping surfaces in the circumferential direction, and the other is provided on one of the clamping surfaces.

[0014] As a preferred embodiment, the cross-sectional shape of the clamping portion for clamping the blade-type cutter head along the direction from the first clamping member to the second clamping member is configured to be rectangular.

[0015] As a preferred embodiment, the cross-sectional shape of the clamping portion for clamping the screwdriver bit along the direction from the first clamping piece to the second clamping piece is configured as a circle or a regular polygon.

[0016] As a preferred embodiment, one of the limiting sleeve and the connecting portion is provided with an internal thread, and the other is provided with a matching external thread, and the two are threadedly connected.

[0017] As a preferred embodiment, the clamping assembly further includes a magnet, and the magnet is clamped between the first clamping member and the second clamping member.

[0018] As a preferred embodiment, one of the first clamping member and the second clamping member is provided with a limiting block, and the other is provided with a limiting groove, and the limiting block is movably inserted into the limiting groove.

[0019] As a preferred embodiment, at least one of the first clamping member and the second clamping member is provided with a plug, a through slot is provided inside the knife handle, and the plug is inserted into the through slot.

[0020] As a preferred embodiment, the outer surface of the limiting sleeve is provided with anti-slip lines.

[0021] As a preferred embodiment, a locking portion is provided on the limiting sleeve, and a circumferential dimension of the locking portion is smaller than or equal to a circumferential dimension of the first clamping portion and the second clamping portion.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] When the first clamping piece of the utility model is buckled into the second clamping piece, two clamping parts can be formed at the same time, namely the first clamping part and the second clamping part. One of the first clamping part and the second clamping part is used to clamp the blade type tool head, and the other is used to clamp the screwdriver type tool head. The user can choose the blade type tool head or the screwdriver type tool head to install on the corresponding clamping part according to actual use needs, and then install the clamping assembly into the tool handle, and limit the clamping assembly by the limit sleeve, which increases the application range of the tool handle in the utility model. There is no need to purchase multiple corresponding tool handles according to different types of tool heads, which reduces the user's purchase cost. The structure is simple and easy to assemble and disassemble, which is conducive to mass production in the factory. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 This is a three-dimensional structural diagram of the connection state between the limiting sleeve and the tool handle of the tool in the embodiment of the present utility model;

[0026] Figure 2 This is an exploded three-dimensional structural diagram of the handle of a tool in an embodiment of the present utility model;

[0027] Figure 3 This is a three-dimensional structural diagram of the clamping assembly in an embodiment of the present utility model;

[0028] Figure 4 This is an exploded perspective structural diagram of the clamping assembly in an embodiment of the present utility model;

[0029] Figure 5 This is a planar structural diagram of the clamping assembly in an embodiment of the present utility model;

[0030] Figure 6 To distinguish Figure 5 Planar structure diagram of the clamping assembly from a different perspective;

[0031] Figure 7 for Figure 1 Half-section structure diagram of the tool along a certain direction;

[0032] Figure 8 is perpendicular to Figure 7 Half-section structure diagram of the tool in the mid-section direction;

[0033] Figure 9 This is a three-dimensional structural diagram of a blade-type cutter head installed on the handle of a tool in an embodiment of the present utility model;

[0034] Figure 10 This is a three-dimensional structural diagram of a screwdriver-type tool head installed on the handle of a tool in an embodiment of the present utility model.

[0035] in:

[0036] 1-handle; 11-rod body; 12-connecting part; 2-limiting sleeve; 21-locking part; 3-clamping assembly; 31-first clamping member; 311-plug; 312-base; 313-limiting block; 314-first chuck; 32-second clamping member; 321-limiting groove; 322-second chuck; 33-magnet; 34-first clamping part; 35-second clamping part; 4-blade-type tool head; 5-screwdriver-type tool head. DETAILED DESCRIPTION

[0037] In order to more clearly understand the above-mentioned purposes, features and advantages of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of this application and the features in the embodiments can be combined with each other. In the following description, many specific details are set forth in order to fully understand the present invention. The embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0039] The embodiment of the utility model discloses a multifunctional tool, comprising a tool head, a tool handle 1, a clamping assembly 3 and a limiting sleeve 2. Figure 1 As shown, Figure 1 The schematic diagram of the connection state between the handle 1 and the limiting sleeve 2 of the tool in this embodiment is shown. The clamping assembly 3 is limited in the handle 1 by the limiting sleeve 2. The tool head can be a blade-type tool head 4 or a screwdriver-type tool head 5. Figure 9 and Figure 10 As shown, Figure 9 This is a schematic diagram of the connection between the handle 1 and the blade-type cutting head 4. Figure 10 Schematic diagram of the tool handle 1 connected to the screwdriver-type tool head 5.

[0040] Specifically, such as Figure 2As shown, the knife handle 1 includes an integrally formed rod body 11 and a connecting portion 12, the clamping assembly 3 is detachably connected to the knife handle 1 for clamping the cutter head, the limiting sleeve 2 is detachably connected to the connecting portion 12 for limiting the position of the clamping assembly 3 relative to the rod body 11, one of the limiting sleeve 2 and the connecting portion 12 is provided with an internal thread, and the other is provided with a matching external thread, and the two are threadedly connected. In this embodiment, the external thread is provided on the outer wall of the connecting portion 12, and the internal thread is provided on the inner wall of the limiting sleeve 2; Figure 3 and Figure 4 As shown, the clamping assembly 3 includes a first clamping member 31 and a second clamping member 32 that are separately provided. The first clamping member 31 and the second clamping member 32 are movably connected. When the first clamping member 31 is buckled into the second clamping member 32, two clamping portions are formed. The two clamping portions are defined as a first clamping portion 34 and a second clamping portion 35. One of the first clamping portion 34 and the second clamping portion 35 is used to clamp the blade-type bit 4, and the other is used to clamp the screwdriver-type bit 5; please refer to Figure 5 , one of the first clamping portion 34 and the second clamping portion 35 for clamping the screwdriver-type bit 5 is provided with multiple mutually connected clamping surfaces on the circumference, and the other is provided on one of the clamping surfaces. In this embodiment, the first clamping portion 34 is used to clamp the blade-type bit 4, and the second clamping portion 35 is used to clamp the screwdriver-type bit 5, and the cross-sectional shape of the second clamping portion 35 along the direction from the first clamping member 31 to the second clamping member 32 is configured as a regular hexagon, and the above-mentioned clamping surfaces are the surfaces corresponding to the sides of the regular hexagon, and the cross-sectional shape of the first clamping portion 34 along the direction from the first clamping member 31 to the second clamping member 32 is configured as a rectangle, and the rectangle is arranged in the regular hexagon On one pair of opposite sides, that is, the first clamping portion 34 is arranged on a clamping surface of the second clamping portion 35. Furthermore, the length of the longer side of the two adjacent sides of the rectangle is greater than the diameter length of the circumscribed circle of the regular hexagon. Correspondingly, the cross-section of the connecting end of the blade-type bit 4 is rectangular, so as to facilitate insertion into the first clamping portion 34, and the cross-section of the connecting end of the screwdriver-type bit 5 is a regular hexagon, so as to facilitate insertion into the second clamping portion 35. It can be understood that the cross-sectional shape of the second clamping portion 35 can also be configured as other regular polygons other than a regular hexagon, such as a regular pentagon, a regular octagon, etc., and can also be configured as a circle. Such transformation methods all fall within the protection scope of the present utility model.

[0041] For further information, please also refer to Figures 3 to 8At least one of the first clamping member 31 and the second clamping member 32 is provided with a plug 311. A through slot is provided inside the knife handle 1, and the plug 311 is inserted into the through slot. In this embodiment, the plug 311 is provided on the first clamping member 31. In addition to the plug 311, the first clamping member 31 is also provided with a base 312 and a first clamping head 314. The plug 311, the base 312 and the first clamping head 314 are configured as an integral molding. When the second clamping member 32 is buckled into the first clamping member 31, it is in contact with the base 312. 12 abut against each other, a second clamping head 322 is provided on the second clamping member 32, and the first clamping head 314 and the second clamping head 322 form a first clamping portion 34 and a second clamping portion 35; on the other hand, one of the first clamping member 31 and the second clamping member 32 is provided with a limiting block 313, and the other is provided with a limiting groove 321, and the limiting block 313 is movably inserted into the limiting groove 321. In this embodiment, the limiting block 313 is provided on the first clamping member 31, and the limiting groove 321 is provided on the second clamping member 32. Figure 3 and Figure 6 As shown, the size of the limit block 313 is slightly smaller than the size of the limit slot 321, so that the first clamping member 31 and the second clamping member 32 have a certain degree of freedom, and the two can move relatively to each other in a small range; the clamping assembly 3 also includes a magnet 33, which is clamped between the first clamping member 31 and the second clamping member 32, and plays the effect of magnetically attracting the blade-type tool head 4 or the screwdriver-type tool head 5, thereby enhancing the limiting effect of the clamping assembly on the tool head, as shown in FIG. Figure 4 As shown, the magnet 33 is configured as a cylinder, and corresponding positions on the first clamping member 31 and the second clamping member 32 are provided with corresponding cylindrical grooves for accommodating the magnet 33. The diameter of the magnet 33 is set to be larger than the diameter of the cylindrical groove. In this way, when the first clamping member 31 and the second clamping member 32 clamp the magnet 33, under the action of the magnet 33, the first clamping member 31 and the second clamping member 32 are not completely in contact with each other, as shown in FIG. Figure 6 As shown, if opposite pressure is applied to both sides of the first clamp 314 and the second clamp 322, the second clamp 32 can rotate slightly around the magnet 33 in the direction of arrow A in the figure to clamp the tool head more tightly; Figure 7 and Figure 8 As shown, when the clamping assembly 3 is installed in the tool handle 1, the limiting sleeve 2 is threadedly connected to the tool handle 1, and a locking portion 21 is provided on the limiting sleeve 2. The circumferential size of the locking portion 21 is less than or equal to the circumferential size of the first clamp 314 and the second clamp 322. With this arrangement, the locking portion 21 plays a role in applying force to the circumference of the first clamp 314 and the second clamp 322, thereby increasing the clamping strength. Even if there are unavoidable production precision errors in the production process of the blade-type tool head 4 and the screwdriver-type tool head 5, a tight clamping effect can be maintained under the action of the limiting sleeve 2 and the clamping assembly 3.

[0042] Preferably, the outer surface of the limit sleeve 2 is provided with anti-slip grooves to prevent the user from slipping when using the tool of this embodiment; similarly, the rod body 11 of the handle 1 is configured as a cylinder, and its circumferential array is provided with an arc surface, which is also to facilitate the user's grip and prevent slipping.

[0043] In summary, the multifunctional tool provided by the embodiment of the present invention has at least the following technical effects:

[0044] When the first clamping member 31 of the present invention is buckled into the second clamping member 32, two clamping parts can be formed at the same time, namely the first clamping part 34 and the second clamping part 35. One of the first clamping part 34 and the second clamping part 35 is used to clamp the blade-type cutter head 4, and the other is used to clamp the screwdriver-type cutter head 5. The user can choose the blade-type cutter head 4 or the screwdriver-type cutter head 5 to be installed on the corresponding clamping part according to actual use needs, and then install the clamping assembly 3 into the tool handle 1, and limit the clamping assembly 3 by the limiting sleeve 2, which increases the application scope of the tool handle 1 in the present invention. There is no need to purchase multiple corresponding tool handles 1 according to different types of cutter heads, which reduces the user's purchase cost. It has a simple structure and is easy to assemble and disassemble, which is conducive to mass production in factories.

[0045] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Therefore, any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A multifunctional tool, characterized in that: include: A cutter head, wherein the cutter head is a blade-type cutter head (4) or a screwdriver-type cutter head (5); A knife handle (1), the knife handle (1) comprising an integrally formed rod body (11) and a connecting portion (12); A clamping assembly (3), the clamping assembly (3) being detachably connected to the knife handle (1) and being used for clamping the knife head; a limiting sleeve (2), the limiting sleeve (2) being detachably connected to the connecting portion (12) and being used for limiting the position of the clamping assembly (3) relative to the rod body (11); The clamping assembly (3) comprises a first clamping member (31) and a second clamping member (32) which are separately arranged. The first clamping member (31) and the second clamping member (32) are movably connected. When the first clamping member (31) is buckled with the second clamping member (32), two clamping portions are formed. The two clamping portions are defined as a first clamping portion (34) and a second clamping portion (35). One of the first clamping portion (34) and the second clamping portion (35) is used to clamp the blade-type tool head (4), and the other is used to clamp the screwdriver-type tool head (5).

2. The tool according to claim 1, characterized in that One of the first clamping portion (34) and the second clamping portion (35) for clamping the screwdriver bit (5) is provided with a plurality of mutually connected clamping surfaces on its circumference, and the other is provided on one of the clamping surfaces.

3. The tool according to claim 1, characterized in that The cross-sectional shape of the clamping portion for clamping the blade-type cutter head (4) along the direction from the first clamping piece (31) to the second clamping piece (32) is configured to be rectangular.

4. The tool according to claim 1, characterized in that The cross-sectional shape of the clamping portion for clamping the screwdriver bit (5) along the direction from the first clamping piece (31) to the second clamping piece (32) is configured as a circle or a regular polygon.

5. The cutting tool according to claim 1, wherein One of the limiting sleeve (2) and the connecting portion (12) is provided with an internal thread, and the other is provided with a matching external thread, and the two are threadedly connected.

6. The cutting tool according to claim 1, characterized in that The clamping assembly (3) further comprises a magnet (33), wherein the magnet (33) is clamped between the first clamping member (31) and the second clamping member (32).

7. The cutting tool according to claim 1, characterized in that One of the first clamping member (31) and the second clamping member (32) is provided with a limiting block (313), and the other is provided with a limiting groove (321), wherein the limiting block (313) is movably plugged into the limiting groove (321).

8. The cutting tool according to claim 1, wherein: At least one of the first clamping member (31) and the second clamping member (32) is provided with a plug (311); a through slot is provided inside the knife handle (1); and the plug (311) is inserted into the through slot.

9. The cutting tool according to claim 1, wherein: The outer surface of the limiting sleeve (2) is provided with anti-slip patterns.

10. The cutting tool according to claim 1, wherein The limiting sleeve (2) is provided with a locking portion (21), and the circumferential dimension of the locking portion (21) is smaller than or equal to the circumferential dimension of the first clamping portion (34) and the second clamping portion (35).

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