Folding art knife

Abstract

The utility model discloses a folding art knife, and particularly relates to the technical field of art knives, the folding art knife comprises a knife handle, one end of the inner side of the knife handle is rotatably connected with a connecting arm through a rotating shaft, and one end, opposite to the knife handle, of the connecting arm is provided with a telescopic blade; and a storage mechanism. The elastic piece, the supporting plate, the rack, the gear, the fixing assembly and other structures are arranged in the connecting arm, fixing of the gear can be quickly relieved by pulling the pull block on the fixing assembly, so that the fixing strip is pulled to enable the sliding plate to drive the blade to enter the first cavity groove, and then the connecting arm is rotated to be embedded into the cutter handle; the gear can be fixed again through the fixing assembly, so that the blade can be fastened in the limiting groove, the connecting arm cannot be randomly pulled out of the connecting arm, the safety and stability of the art knife after the art knife is folded and stored can be effectively guaranteed, and the art knife is convenient to unfold, simple and rapid to operate and high in practicability. And the use effect of the device is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of art knives, in particular to a folding art knife. Background Art

[0002] An art knife, also commonly known as a carving knife or wallpaper knife, is a knife used in art and handicrafts, mainly used to cut relatively soft materials, and is mostly composed of a plastic handle and a blade. When in use, usually only the tip part is used. The blade is mostly beveled and has structures such as a draw type and a folding type.

[0003] At present, when the existing folding art knife is in use, the handle and the blade head are usually movably connected, and the blade head can be rotated and retracted into the handle. When in use, the blade head can be pulled out again. However, in actual use, simple rotational folding is difficult to effectively ensure the stability after storage. The blade head can be pulled out randomly, which is likely to cause accidental scratches or self - damage, and greatly affects safety. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a folding art knife. By setting structures such as an elastic member, a support plate, a rack, a gear and a fixing component in the connecting arm, by pulling the pull block on the fixing component, the fixing of the gear can be quickly released, so as to pull the fixing bar to drive the slide plate to drive the blade into the first cavity. Then, rotate the connecting arm and embed it into the handle, and make the blade quickly reset and inserted into the limiting groove. The gear can be fixed again through the fixing component, so that the blade can be fastened in the limiting groove, making the connecting arm unable to be pulled out randomly, thereby effectively ensuring the safety and stability of the art knife after folding and storage, and being convenient to unfold, with simple and fast operation, greatly improving the use effect of the device, so as to solve the above - mentioned deficiencies in the technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solution: A folding art knife, comprising:

[0006] A handle, one end of the inner side of the handle is rotatably connected to a connecting arm through a rotating shaft, and a telescopic blade is arranged at one end of the connecting arm relative to the handle;

[0007] A storage mechanism, the storage mechanism includes a first cavity and a second cavity opened in the connecting arm, the first cavity is located between the blade and the second cavity, and the bottoms of the first cavity and the second cavity are communicated;

[0008] One end of the blade extends into the first cavity and is connected to an elastic member. A support plate is penetrated between the bottom ends of the first cavity and the second cavity. One end of the support plate is connected to the blade, and a rack is arranged on the top side of the other end of the support plate. A pulling member is arranged on one side of the support plate. A gear is rotatably connected to the inside of the second cavity through a rotating shaft. The gear meshes with the rack, and a fixing component is arranged above the gear;

[0009] A limiting groove matching the blade is formed inside the handle relative to one end of the connecting arm.

[0010] Preferably, the pulling member includes a fixing strip disposed on one side of the connecting arm. A slider is fixed in the middle of the side wall of the support plate. A chute facing the fixing strip is formed in the side wall of the connecting arm. One end of the slider passes through the chute and is fixedly connected to the fixing strip.

[0011] Preferably, the elastic member includes a sliding plate slidably connected to one end inside the first cavity. One end of the blade is fixedly connected to the sliding plate. A first spring is fixed inside the first cavity relative to one end of the blade. One end of the first spring is fixedly connected to the sliding plate.

[0012] Preferably, a groove is formed in the middle of one side of the handle close to the fixing strip.

[0013] Preferably, the fixing assembly includes two second springs symmetrically fixed to the top side inside the second cavity. The bottom end of the second spring is connected to a toothed plate, and a connecting rod is disposed inside the second spring. The toothed plate is engaged with a gear. The bottom end of the connecting rod is fixedly connected to the toothed plate, and the top end of the connecting rod extends outside the connecting arm and is fixedly connected to a pulling block.

[0014] Preferably, the pulling block is U-shaped, and anti-slip ridges are provided on both sides of the pulling block.

[0015] Preferably, a sponge pad is provided on the inner wall of the limiting groove.

[0016] In the above technical solution, the technical effects and advantages provided by the present utility model are as follows:

[0017] By providing structures such as an elastic member, a support plate, a rack, a gear, and a fixing assembly inside the connecting arm, by pulling the pulling block on the fixing assembly, the fixing of the gear can be quickly released, so as to pull the fixing strip to drive the sliding plate to drive the blade into the first cavity. Then, rotate the connecting arm and embed it into the handle, and make the blade quickly reset and inserted into the limiting groove. The gear can be fixed again through the fixing assembly, so that the blade can be fastened in the limiting groove, making the connecting arm unable to be pulled out of the connecting arm randomly, thereby effectively ensuring the safety and stability after the utility knife is folded and stored, and being convenient to unfold, with simple and fast operation, greatly improving the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0019] Figure 1 One of the overall structural schematic diagrams of the present utility model;

[0020] Figure 2 Another overall structural schematic diagram of the present utility model;

[0021] Figure 3 Internal structural schematic diagram of the handle of the present utility model;

[0022] Figure 4 Structural schematic diagram of the connecting arm and the blade of the present utility model after folding;

[0023] Figure 5 Internal structural schematic diagram of the connecting arm of the present utility model.

[0024] Explanation of reference numerals in the drawings:

[0025] 1. Handle; 2. Connecting arm; 3. Blade; 4. Groove; 5. Fixed strip; 6. Slide groove; 7. Slide block; 8. First cavity; 9. Second cavity; 10. Slide plate; 11. First spring; 12. Support plate; 13. Rack; 14. Gear; 15. Tooth plate; 16. Second spring; 17. Connecting rod; 18. Pulling block; 19. Limit groove; 20. Sponge pad. Detailed implementation manner

[0026] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the present utility model will be further introduced in detail below with reference to the accompanying drawings.

[0027] The present utility model provides a folding utility knife as shown in Figures 1-5 and includes:

[0028] A handle 1, one end of the inner side of the handle 1 is rotatably connected to a connecting arm 2 through a rotating shaft, and a telescopic blade 3 is provided at one end of the connecting arm 2 relative to the handle 1;

[0029] A storage mechanism, the storage mechanism includes a first cavity 8 and a second cavity 9 opened in the connecting arm 2, the first cavity 8 is located between the blade 3 and the second cavity 9, and the bottoms of the first cavity 8 and the second cavity 9 are communicated;

[0030] One end of the blade 3 extends into the first cavity 8 and is connected with an elastic member. A support plate 12 is penetrated between the bottom ends of the first cavity 8 and the second cavity 9. One end of the support plate 12 is connected to the blade 3, and a rack 13 is provided on the top side of the other end of the support plate 12. A pulling member is provided on one side of the support plate 12. A gear 14 is rotatably connected to the inside of the second cavity 9 through a rotating shaft. The gear 14 meshes with the rack 13, and a fixing assembly is provided above the gear 14;

[0031] A limiting groove 19 matching the blade 3 is formed inside the handle 1 at one end opposite to the connecting arm 2 .

[0032] The inner wall of the limiting groove 19 is provided with a sponge pad 20. By providing the sponge pad 20, the water stain on the blade 3 can be wiped.

[0033] The pulling member includes a fixing bar 5 arranged on one side of the connecting arm 2, a slider 7 is fixed to the middle end of the side wall of the supporting plate 12, a sliding groove 6 facing the fixing bar 5 is opened on the side wall of the connecting arm 2, and one end of the slider 7 passes through the sliding groove 6 and is fixedly connected to the fixing bar 5.

[0034] The elastic member includes a slide plate 10 slidably connected to one end of the first cavity 8, one end of the blade 3 is fixedly connected to the slide plate 10, a first spring 11 is fixed inside the first cavity 8 relative to one end of the blade 3, and one end of the first spring 11 is fixedly connected to the slide plate 10.

[0035] A groove 4 is provided in the middle of one side of the knife handle 1 close to the fixing bar 5. The fixing bar 5 and the pull block 18 are conveniently moved by the provided groove 4.

[0036] The fixing assembly includes two second springs 16 symmetrically fixed on the top side of the second cavity 9, the bottom end of the second spring 16 is connected to a toothed plate 15, and a connecting rod 17 is passed through the inside of the second spring 16, the toothed plate 15 is meshed with the gear 14, the bottom end of the connecting rod 17 is fixedly connected to the toothed plate 15, and the top end of the connecting rod 17 extends to the outside of the connecting arm 2 and is fixed with a pull block 18.

[0037] The pull block 18 is U-shaped, and anti-skid convex patterns are provided on both sides of the pull block 18. The anti-skid convex patterns facilitate the movement of the pull block 18.

[0038] When in use, the pull block 18 can be pulled upwards, so that the pull block 18 drives the connecting rod 17 to move, and then the connecting rod 17 drives the tooth plate 15 to rise and squeeze the second spring 16, so that the tooth plate 15 can be separated from the gear 14, and the fixation of the gear 14 can be released;

[0039] Afterwards, the fixed bar 5 on one side can be pulled, so that the fixed bar 5 drives the slider 7 to slide in the chute 6. Then, the slider 7 drives the support plate 12 to move, so that the support plate 12 drives the slide plate 10 to slide in the first cavity 8. Then, the slide plate 10 drives the blade 3 into the first cavity 8 and compresses the first spring 11. At the same time, the other end of the support plate 12 drives the rack 13 to move, so that the rack 13 drives the gear 14 to rotate. The connecting arm 2 is rotated and inserted into the knife handle 1. Then, the fixed bar 5 is released. Under the elastic action of the elastic member, the blade 3 can quickly extend out of the connecting arm 2 and be inserted into the limit groove 19. And when the pulling block 18 is released, the gear 14 can be fixed again. Thus, the blade 3 can be fastened in the limit groove 19, so that the connecting arm 2 cannot be pulled out of the connecting arm 2 randomly. Furthermore, the safety and stability after the utility model art knife is folded and stored can be effectively guaranteed;

[0040] On the contrary, through the fixing component, the connecting arm 2 can be unlocked and pulled out, and then locked again through the fixing component, so that the extended blade 3 can be kept stable. The operation is simple and fast, greatly improving the use effect of the device.

[0041] Only some exemplary embodiments of the present invention are described in the above by way of illustration. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present invention.

Claims

1. A folding utility knife, characterized in that, Including: A tool handle (1), one inner end of the tool handle (1) is rotatably connected to a connecting arm (2) through a rotating shaft, and a telescopic blade (3) is arranged at one end of the connecting arm (2) relative to the tool handle (1); A storage mechanism, the storage mechanism includes a first cavity (8) and a second cavity (9) opened in the connecting arm (2), the first cavity (8) is located between the blade (3) and the second cavity (9), and the bottoms of the first cavity (8) and the second cavity (9) are communicated; One end of the blade (3) extends into the first cavity (8) and is connected with an elastic member. A support plate (12) is arranged through the bottom ends of the first cavity (8) and the second cavity (9). One end of the support plate (12) is connected with the blade (3), and a rack (13) is arranged on the top side of the other end of the support plate (12). A pulling member is arranged on one side of the support plate (12). A gear (14) is rotatably connected to the inside of the second cavity (9) through a rotating shaft. The gear (14) is engaged with the rack (13), and a fixing component is arranged above the gear (14); A limiting groove (19) matching the blade (3) is opened at one end of the tool handle (1) relative to the connecting arm (2).

2. The folding utility knife according to claim 1, wherein: The pulling member includes a fixing strip (5) arranged on one side of the connecting arm (2). A slider (7) is fixed in the middle of the side wall of the support plate (12). A sliding groove (6) facing the fixing strip (5) is opened on the side wall of the connecting arm (2). One end of the slider (7) passes through the sliding groove (6) and is fixed to the fixing strip (5).

3. The folding utility knife according to claim 1, characterized in that: The elastic member includes a sliding plate (10) slidably connected to one end inside the first cavity (8). One end of the blade (3) is fixed to the sliding plate (10). A first spring (11) is fixed to one end of the first cavity (8) relative to the blade (3). One end of the first spring (11) is fixed to the sliding plate (10).

4. The folding utility knife according to claim 2, wherein: A groove (4) is opened in the middle of one side of the tool handle (1) close to the fixing strip (5).

5. A folding utility knife according to claim 1, wherein: The fixing component includes two second springs (16) symmetrically fixed to the top side inside the second cavity (9). The bottom end of the second spring (16) is connected with a toothed plate (15). A connecting rod (17) is arranged inside the second spring (16). The toothed plate (15) is engaged with the gear (14). The bottom end of the connecting rod (17) is fixed to the toothed plate (15), and the top end of the connecting rod (17) extends outside the connecting arm (2) and is fixed with a pulling block (18).

6. The folding utility knife according to claim 5, wherein: The pulling block (18) is U-shaped, and anti-slip convex lines are arranged on both sides of the pulling block (18).

7. A folding utility knife according to claim 1, characterized in that: A sponge pad (20) is arranged on the inner wall of the limiting groove (19).

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