Quick replacement structure for blade assembly of pencil sharpener

Abstract

The utility model relates to the technical field of stationery, in particular to a pencil sharpener blade assembly quick replacement structure which comprises a pencil sharpener protective shell and a pencil sharpener blade, the pencil sharpener blade is arranged in the pencil sharpener protective shell, clamping and locking blocks are rotationally arranged at the two ends of the pencil sharpener blade, clamping and locking teeth are arranged on the two sides of each clamping and locking block, and two sets of installation mechanisms are arranged. The mounting mechanisms are arranged on the two sides of the interior of the pencil sharpener protective shell and used for mounting the pencil sharpener blade, and the clamping and locking blocks at the two ends of the pencil sharpener blade can be locked or released through the mounting mechanisms, so that the pencil sharpener blade is more rapid and convenient to disassemble and assemble, the replacement efficiency of the pencil sharpener blade is improved, and the practicability is high. And the whole pencil sharpener cannot be scrapped due to the damage of the pencil sharpener blade, so that the resource consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of stationery, in particular to a quick replacement structure for a pencil sharpener blade assembly. Background Technique

[0002] A pencil sharpener is a stationery tool used to automatically sharpen pencils or other types of pens (such as colored pencils, technical pens, etc.).

[0003] In the prior art, the blade is generally fixed on the blade holder of the pencil sharpener by screws, resulting in cumbersome disassembly and assembly of the blade. If the blade is worn and cannot be replaced, the pencil sharpener will be scrapped, causing waste of resources. Content of the Utility Model

[0004] The purpose of the utility model is to provide a quick replacement structure for a pencil sharpener blade assembly to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: including a pencil sharpener housing,

[0006] A pencil sharpening blade, the pencil sharpening blade is arranged inside the pencil sharpener housing;

[0007] Locking blocks are rotatably arranged at both ends of the pencil sharpening blade, and locking teeth are arranged on both sides of the locking blocks;

[0008] An installation mechanism, two groups of the installation mechanism are arranged, the installation mechanism is arranged on both sides inside the pencil sharpener housing, and the installation mechanism is used for installing the pencil sharpening blade;

[0009] The installation mechanism includes a fixed side frame, a biasing spring is symmetrically fixed on the inner side of the fixed side frame, the other end of the biasing spring is fixed with a plug lock plate, a plug lock tooth is arranged on the side of the plug lock plate close to each other, and the plug lock tooth can be inserted into the inner side of the locking tooth.

[0010] As a further scheme of the utility model: a connecting rotating rod is fixedly arranged at one end of the pencil sharpening blade, the connecting rotating rod penetrates and is rotatably arranged on one side of the locking block, a driven gear is fixedly arranged at the other end of the connecting rotating rod, a tooth ring is meshed on the outer side of the driven gear, fixed ring brackets are symmetrically fixed on the outer side of the tooth ring, the fixed ring brackets are detachably arranged on both sides inside the pencil sharpener housing, a connecting frame is fixedly arranged at the top of the locking block, and a contact bump is fixedly arranged at the top of the connecting frame.

[0011] As a further solution of the present utility model: on one side of the fixed side frame, chute openings are symmetrically provided. A movable connecting rod is slidably arranged inside the chute openings. On one side of the movable connecting rod, a first handle frame and a second handle frame are respectively fixedly arranged. On the other side of the first handle frame and the second handle frame, pinch plates are arranged. The movable connecting rod is fixedly arranged on one side of the plug lock plate. On the symmetrically opposite sides of the plug lock plate, first connecting rods are rotatably arranged. At the other end of the first connecting rod, a second connecting rod is rotatably arranged. The second connecting rod is rotatably arranged inside the fixed side frame.

[0012] As a further solution of the present utility model: at the bottom end of the fixed side frame, a first side plate and a second side plate are respectively fixedly arranged. A knife rest is fixedly arranged between the first side plate and the second side plate. On one side of the second side plate, a pen inlet is provided. On one side of the first side plate, a crank is fixedly arranged. The crank is rotatably arranged on one side of the pencil sharpener housing. The second side plate is rotatably arranged on the inner side of the pencil sharpener housing.

[0013] As a further solution of the present utility model: a chip collecting box is slidably arranged at the bottom end of the pencil sharpener housing. A chip sliding table is fixedly arranged inside the chip collecting box. A reciprocating sliding column penetrates and is slidably arranged at the top end of the chip sliding table. At both ends of the reciprocating sliding column, a pressing block and a striking shock block are respectively fixedly arranged. At the bottom end of the pressing block, a return spring is fixedly arranged. The return spring is fixedly arranged at the top end of the chip sliding table.

[0014] As a further solution of the present utility model: both sides of the chip sliding table are arranged in an inclined plane. The striking shock block is arranged inside the chip sliding table.

[0015] As a further solution of the present utility model: a pen inlet is provided on one side of the pencil sharpener housing. A side shell door is rotatably arranged on one side of the pencil sharpener housing. A magnet is arranged on the other side of the side shell door.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows: through the setting of the installation mechanism, the locking blocks at both ends of the pencil sharpening blade can be locked or released, so that the disassembly and installation of the pencil sharpening blade are more rapid and convenient, the replacement efficiency of the pencil sharpening blade is improved, and the overall scrapping of the pencil sharpener will not be caused due to the damage of the pencil sharpening blade, saving resource consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structure diagram of a quick replacement structure of a pencil sharpener blade assembly;

[0018] Figure 2 It is a three-dimensional structure diagram inside the pencil sharpener housing in a quick replacement structure of a pencil sharpener blade assembly;

[0019] Figure 3Schematic diagram of the disassembly of some pencil sharpening blades and driven gears and their combination structure with the installation mechanism and locking block in a quick replacement structure of a pencil sharpener blade assembly;

[0020] Figure 4 Schematic diagram of the disassembly structure of the locking block and the plug lock plate in a quick replacement structure of a pencil sharpener blade assembly.

[0021] Figure 5 Schematic diagram of the disassembly structure of the chip collection box, chip sliding table, reciprocating sliding column, pressing block, striking shock block and reciprocating sliding column in a quick replacement structure of a pencil sharpener blade assembly.

[0022] In the figure: 1. Pencil sharpener housing; 101. Pen inlet; 102. Side shell door; 2. Pencil sharpening blade; 201. Locking block; 2011. Locking teeth; 202. Connecting frame; 203. Contact bump; 204. Connecting rotating rod; 205. Driven gear; 206. Tooth ring; 207. Fixed ring bracket; 3. Installation mechanism; 301. Fixed side frame; 302. Chute opening; 303. Moving connecting rod; 304. First handle frame; 305. Pinch plate; 306. Second handle frame; 307. Force spring; 308. First connecting rod; 309. Second connecting rod; 310. Plug lock plate; 3101. Plug lock teeth; 4. Knife rest; 401. First side plate; 402. Second side plate; 403. Crank; 5. Chip collection box; 501. Chip sliding table; 502. Reciprocating sliding column; 503. Pressing block; 504. Striking shock block; 505. Return spring. Detailed implementation mode

[0023] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4, in the embodiment of the present utility model, a quick replacement structure for a pencil sharpener blade assembly includes a pencil sharpener housing 1, a pencil sharpening blade 2, the pencil sharpening blade 2 is arranged inside the pencil sharpener housing 1, locking blocks 201 are rotatably arranged at both ends of the pencil sharpening blade 2, locking teeth 2011 are arranged on both sides of the locking blocks 201, an installation mechanism 3, there are two groups of installation mechanisms 3, the installation mechanisms 3 are arranged on both sides inside the pencil sharpener housing 1, the installation mechanism 3 is used for installing the pencil sharpening blade 2, the installation mechanism 3 includes a fixed side frame 301, a biasing spring 307 is symmetrically and fixedly arranged inside the fixed side frame 301, the other end of the biasing spring 307 is fixedly provided with an insertion lock plate 310, an insertion lock tooth 3101 is arranged on the side of the insertion lock plate 310 close to each other, the insertion lock tooth 3101 can be inserted into the inside of the locking tooth 2011, a sliding groove opening 302 is symmetrically formed on one side of the fixed side frame 301, a moving connecting rod 303 is slidably arranged inside the sliding groove opening 302, a first handle frame 304 and a second handle frame 306 are respectively and fixedly arranged on one side of the moving connecting rod 303, pinch plates 305 are arranged on the other side of the first handle frame 304 and the second handle frame 306, the moving connecting rod 303 is fixedly arranged on one side of the insertion lock plate 310, a first connecting rod 308 is symmetrically and rotatably arranged on the side of the insertion lock plate 310 away from each other, the other end of the first connecting rod 308 is rotatably provided with a second connecting rod 309, the second connecting rod 309 is rotatably arranged inside the fixed side frame 301, a pen inlet 101 is formed on one side of the pencil sharpener housing 1, a side shell door 102 is rotatably arranged on one side of the pencil sharpener housing 1, and a magnet is arranged on the other side of the side shell door 102.

[0024] When installing the pencil sharpening blade 2, forcefully open the side shell door 102. The side shell door 102 is fixed to one side of the pencil sharpener housing 1 by a magnet, making it easy to open and close the side shell door 102. Place the pencil sharpening blade 2 into the interior of the pencil sharpener housing 1 from one side of the pencil sharpener housing 1, and the locking block 201 will come into contact with the latch plate 310 in the installation mechanism 3. As the locking block 201 is pressed down, the latch plates 310 will move away from each other. At the same time, the biasing spring 307 will be compressed, and the angle between the first link 308 and the second link 309 will become smaller and smaller until the latch teeth 3101 are inserted into the locking teeth 2011. At this time, the biasing spring 307 is still in a compressed state and will provide a certain squeezing force to the latch plate 310, making the locking block 201 and the latch plate 310 fit more closely, thus completing the installation of the pencil sharpening blade 2. When it is necessary to disassemble the pencil sharpening blade 2, pinch the two pinch plates 305 at the same time, making the first handle holder 304 and the second handle holder 306 move away from each other, while the pinch plates 305 will move closer to each other. The moving link 303 will move away from each other under the drive of the first handle holder 304 and the second handle holder 306, and at the same time drive the latch plates 310 to move away from each other, so that the locking block 201 can be removed, facilitating the replacement of the pencil sharpening blade 2. This makes the disassembly and installation of the pencil sharpening blade 2 faster and more convenient, improves the replacement efficiency of the pencil sharpening blade 2, and does not cause the entire pencil sharpener to be scrapped due to the damage of the pencil sharpening blade 2, saving resource consumption.

[0025] Refer to Figure 1 、 Figure 2 and Figure 5, one end of the pencil sharpening blade 2 is fixedly provided with a connecting rotating rod 204. The connecting rotating rod 204 penetrates and is rotatably arranged on one side of the locking block 201. The other end of the connecting rotating rod 204 is fixedly provided with a driven gear 205. An outer side of the driven gear 205 is meshed with a toothed ring 206. Symmetrically fixed on the outer side of the toothed ring 206 are fixed ring brackets 207. The fixed ring brackets 207 are detachably arranged on both inner sides of the pencil sharpener housing 1. The top end of the locking block 201 is fixedly provided with a connecting frame 202. The top end of the connecting frame 202 is fixedly provided with a contact bump 203. The bottom ends of the fixed side frames 301 are respectively fixedly provided with a first side plate 401 and a second side plate 402. A knife rest 4 is fixedly arranged between the first side plate 401 and the second side plate 402. A pen inlet 101 is formed on one side of the second side plate 402. A crank 403 is fixedly arranged on one side of the first side plate 401. The crank 403 is rotatably arranged on one side of the pencil sharpener housing 1. The second side plate 402 is rotatably arranged on one inner side of the pencil sharpener housing 1. A chip collecting box 5 is slidably arranged at the bottom end of the pencil sharpener housing 1. A chip sliding table 501 is fixedly arranged inside the chip collecting box 5. The top end of the chip sliding table 501 penetrates and is slidably arranged with a reciprocating sliding column 502. Both ends of the reciprocating sliding column 502 are respectively fixedly provided with a pressing block 503 and a striking shock block 504. The bottom end of the pressing block 503 is fixedly provided with a return spring 505. The return spring 505 is fixedly arranged at the top end of the chip sliding table 501. Both sides of the chip sliding table 501 are arranged in an inclined plane. The striking shock block 504 is arranged inside the chip sliding table 5.

[0026] Rotate the crank 403, so that the knife rest 4, the first side plate 401 and the second side plate 402 drive the installation mechanism 3 and the pencil sharpening blade 2 to rotate. While the pencil sharpening blade 2 makes a circumferential movement, it will drive the connecting frame 202 and the driven gear 205. And through the setting of the toothed ring 206, the driven gear 205 can drive the pencil sharpening blade 2 to move and rotate, so that the pencil sharpening blade 2 can perform the pencil sharpening work on the pen. When the connecting frame 202 reaches above the chip collecting box 5, the contact bump 203 will contact the pressing block 503, so that the reciprocating sliding column 502 descends, and the return spring 505 will be compressed. The striking shock block 504 will strike the chip collecting box 5 once, causing vibration inside the chip collecting box 5, which can make the distribution of the pen chips inside the chip collecting box 5 uniform, prevent the pen chips from piling up too high and affecting the pencil sharpening quality, and the pressing block 503 returns to its original position through the resilience of the return spring 505, waiting for the next work.

[0027] The working principle of the present utility model is as follows: When it is necessary to install the pencil-sharpening blade 2, the side shell door 102 is forcefully opened. The side shell door 102 is fixed to one side of the pencil-sharpening machine housing 1 by a magnet, so that the side shell door 102 is convenient to open and close. The pencil-sharpening blade 2 is placed into the interior of the pencil-sharpening machine housing 1 from one side of the pencil-sharpening machine housing 1, and the locking block 201 will contact the plug lock plate 310 in the installation mechanism 3. As the locking block 201 is pressed down, the plug lock plates 310 will move away from each other. At the same time, the force-applying spring 307 will be compressed, and the angle between the first connecting rod 308 and the second connecting rod 309 will become smaller and smaller until the plug lock teeth 3101 are inserted into the locking teeth 2011. At this time, the force-applying spring 307 is still in a compressed state and will provide a certain squeezing force to the plug lock plate 310, so that the locking block 201 and the plug lock plate 310 can fit more closely, thus completing the installation of the pencil-sharpening blade 2. When it is necessary to disassemble the pencil-sharpening blade 2, both pinch plates 305 are pinched simultaneously, so that the first handle frame 304 and the second handle frame 306 move away from each other, while the pinch plates 305 will move closer to each other. The moving connecting rod 303 will move away from each other under the drive of the first handle frame 304 and the second handle frame 306, and at the same time drive the plug lock plates 310 to move away from each other, so that the locking block 201 can be taken out, which is convenient for replacing the pencil-sharpening blade 2. Thus, the installation and disassembly of the pencil-sharpening blade 2 are more rapid and convenient, the replacement efficiency of the pencil-sharpening blade 2 is improved, and the whole pencil-sharpening machine will not be scrapped due to the damage of the pencil-sharpening blade 2, saving resource consumption;

[0028] When performing the pencil-sharpening work, the crank 403 is rotated, so that the tool holder 4, the first side plate 401 and the second side plate 402 drive the installation mechanism 3 and the pencil-sharpening blade 2 to rotate. While the pencil-sharpening blade 2 is moving in a circular motion, it will drive the connecting frame 202 and the driven gear 205. And through the setting of the toothed ring 206, the driven gear 205 can drive the pencil-sharpening blade 2 to move and rotate, so that the pencil-sharpening blade 2 performs the pencil-sharpening work on the pen. When the connecting frame 202 is above the chip collecting box 5, the contact convex block 203 will contact the pressing block 503, so that the reciprocating sliding column 502 descends, and the return spring 505 will be compressed. The striking block 504 will strike the chip collecting box 5 once, so that the interior of the chip collecting box 5 generates vibration, which can promote the even distribution of the pen chips in the chip collecting box 5, prevent the pen chips from piling up too high and affecting the pencil-sharpening quality, and the pressing block 503 returns to its original position by the resilience of the return spring 505, waiting for the next work.

[0029] The above is only the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. A quick replacement structure for a pencil sharpener blade assembly, characterized in that, Comprising: A pencil sharpener housing (1), A pencil sharpening blade (2), and the pencil sharpening blade (2) is arranged inside the pencil sharpener housing (1); At both ends of the pencil sharpening blade (2), locking blocks (201) are rotatably arranged, and locking teeth (2011) are arranged on both sides of the locking blocks (201); An installation mechanism (3), and there are two groups of the installation mechanisms (3). The installation mechanisms (3) are arranged on both sides inside the pencil sharpener housing (1), and the installation mechanism (3) is used for installing the pencil sharpening blade (2); The installation mechanism (3) includes a fixed side frame (301). On the inner side of the fixed side frame (301), biasing springs (307) are symmetrically fixed. The other end of the biasing spring (307) is fixedly provided with an insertion lock plate (310). On the side where the insertion lock plates (310) face each other, insertion lock teeth (3101) are arranged, and the insertion lock teeth (3101) can be inserted inside the locking teeth (2011).

2. The quick replacement structure of a pencil sharpener blade assembly according to claim 1, characterized in that, One end of the pencil sharpening blade (2) is fixedly provided with a connecting rotating rod (204). The connecting rotating rod (204) penetrates and is rotatably arranged on one side of the locking block (201). The other end of the connecting rotating rod (204) is fixedly provided with a driven gear (205). A toothed ring (206) is meshed on the outer side of the driven gear (205). On the outer side of the toothed ring (206), fixed ring brackets (207) are symmetrically fixed. The fixed ring brackets (207) are detachably arranged on both sides inside the pencil sharpener housing (1). The top end of the locking block (201) is fixedly provided with a connecting frame (202), and the top end of the connecting frame (202) is fixedly provided with a contact bump (203).

3. The quick replacement structure of a pencil sharpener blade assembly according to claim 1, characterized in that, On one side of the fixed side frame (301), chute openings (302) are symmetrically formed. Inside the chute openings (302), moving connecting rods (303) are slidably arranged. On one side of the moving connecting rods (303), a first handle frame (304) and a second handle frame (306) are respectively fixedly provided. On the other side of the first handle frame (304) and the second handle frame (306), pinch plates (305) are arranged. The moving connecting rods (303) are fixedly arranged on one side of the insertion lock plate (310). On the side where the insertion lock plates (310) are away from each other, first connecting rods (308) are symmetrically rotatably arranged. The other end of the first connecting rod (308) is rotatably provided with a second connecting rod (309), and the second connecting rod (309) is rotatably arranged inside the fixed side frame (301).

4. The quick replacement structure of a pencil sharpener blade assembly according to claim 1, wherein At the bottom end of the fixed side frame (301), a first side plate (401) and a second side plate (402) are respectively fixedly provided. A knife rest (4) is fixedly arranged between the first side plate (401) and the second side plate (402). A pen inlet (101) is formed on one side of the second side plate (402). A crank (403) is fixedly arranged on one side of the first side plate (401). The crank (403) is rotatably arranged on one side of the pencil sharpener housing (1), and the second side plate (402) is rotatably arranged on one side inside the pencil sharpener housing (1).

5. The quick replacement structure of a pencil sharpener blade assembly according to claim 1, wherein, A chip collecting box (5) is slidably arranged at the bottom end of the pencil sharpener housing (1). A chip sliding table (501) is fixedly arranged inside the chip collecting box (5). A reciprocating sliding column (502) penetrates through and is slidably arranged at the top end of the chip sliding table (501). Pressing blocks (503) and striking vibration blocks (504) are respectively fixedly arranged at both ends of the reciprocating sliding column (502). A return spring (505) is fixedly arranged at the bottom end of the pressing block (503), and the return spring (505) is fixedly arranged at the top end of the chip sliding table (501).

6. The quick replacement structure of a pencil sharpener blade assembly according to claim 5, characterized in that, Both sides of the chip sliding table (501) are arranged as inclined planes, and the striking vibration block (504) is arranged inside the chip sliding table (501).

7. The quick replacement structure of a pencil sharpener blade assembly according to claim 1, characterized in that, A pen inlet (101) is formed on one side of the pencil sharpener housing (1). A side shell door (102) is rotatably arranged on one side of the pencil sharpener housing (1), and a magnet is arranged on the other side of the side shell door (102).

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