Modularized shell locking device of pencil sharpener

Abstract

The utility model discloses a pencil sharpener modularized shell locking device which comprises a pencil sharpener shell, an inserting hole is formed in the middle of the pencil sharpener shell, a plurality of limiting grooves which are annularly arranged are formed in the corners of the front face of the pencil sharpener shell, a cavity is formed in the middle of the inserting hole, and a limiting mechanism is arranged in the cavity. A locking assembly used for locking the limiting mechanism is arranged in the cavity and comprises a rotating rod, the rotating rod is rotationally connected to the front face of the pencil sharpener shell, and the rotating rod is used for driving the limiting mechanism; the inserting rod is inserted and connected to the front surface of the rotating rod; the fixed plate is fixedly arranged on the front surface of the insertion rod; the two limiting rods are fixedly arranged on the two sides of the fixing plate, the limiting rods are connected with the limiting grooves in a penetrating and inserting mode, the limiting rods of elastic bands of springs are inserted into the limiting grooves, so that the angles of the gears and the annular disc can be locked at different positions, pencils of different sizes are locked when limited, the pencils are prevented from shaking due to external force, and the service life of the pencils is prolonged. And the pencil sharpening effect is influenced.

Description

Technical Field

[0001] The present application relates to the field of pencil sharpeners, and in particular to a modular housing locking device for pencil sharpeners. Background Art

[0002] A pencil sharpener is a common stationery product used to sharpen pencils in daily life. The various functional parts of a modular pencil sharpener can be divided into independent modules, such as a pencil sharpener module, a pencil clamp module, a chip box module, etc. Each module has its own specific function and is connected to other modules, aiming to improve the flexibility and maintainability of the product, while also increasing the functionality and user experience of the product.

[0003] However, in the process of implementing the relevant technical solutions, it was found that there are at least the following technical problems: pencil sharpeners generally use the movement of a clamping block to drive a limit block to limit the pencil in the socket, and pencils vary in model and size. When limiting the pencil, the limit block may move due to external force, making it impossible to stably fix the pencil during cutting, affecting the efficiency of pencil sharpening. Utility Model Content

[0004] The present application solves the problem in the prior art that pencils of different sizes cannot be stably fixed by providing a modular housing locking device for a pencil sharpener, thereby achieving the effect of locking pencils of different sizes.

[0005] The present application provides a modular housing locking device for a pencil sharpener, comprising a pencil sharpener housing, a socket being provided in the middle of the pencil sharpener housing, a plurality of annular limiting grooves being provided at the corners of the front face of the pencil sharpener housing, a cavity being provided in the middle of the socket, a limiting mechanism being provided inside the cavity, a locking assembly for locking the limiting mechanism being provided inside the cavity, the locking assembly comprising: a rotating rod, rotatably connected to the front face of the pencil sharpener housing, and the rotating rod being used to drive the limiting mechanism; an insertion rod, inserted and connected to the front face of the rotating rod; a fixing plate, fixedly arranged on the front face of the insertion rod; two limiting rods, fixedly arranged on both sides of the fixing plate, and the limiting rods being inserted and connected to the limiting grooves.

[0006] Furthermore, the limiting mechanism includes: an annular disk, rotatably connected to the inside of the cavity; a plurality of limiting blocks, rotatably connected to the back of the annular disk, one end of each of the limiting blocks extending into the inside of the jack, and one end of each of the limiting blocks contacting and connecting with the pencil.

[0007] Furthermore, the limiting mechanism also includes: a plurality of through slots, which are opened on the front side of the annular disk, and the plurality of through slots are equidistantly arranged in a ring; a first rotating shaft, which is slidably connected to the inside of the through slots, the first rotating shaft is fixedly arranged inside the cavity, and the limiting block is sleeved and rotatably connected to the outside of the first rotating shaft; a second rotating shaft, which is fixedly arranged on the outside of the annular disk, and one end of the limiting block is sleeved and rotatably connected to the outside of the second rotating shaft.

[0008] Furthermore, a transmission assembly is provided at the top of the limiting mechanism, and the transmission assembly includes: a gear ring sleeve, fixedly provided on the top of the annular disk; a rack, meshingly connected to the top of the gear ring sleeve; a gear, meshingly connected to the bottom of the other end of the rack, and the gear is fixedly connected to the rotating rod.

[0009] Furthermore, a movable groove is provided on the front of the rotating rod, the insertion rod is slidably connected to the inside of the movable groove, a spring is provided inside the movable groove, and both ends of the spring are fixedly connected to the inner wall of the movable groove and the insertion rod respectively.

[0010] The technical solution provided by this application has at least the following technical effects or advantages:

[0011] The rotation of the annular disk drives the limiting blocks to rotate around the first rotating shaft, so that the multiple limiting blocks clamp pencils of different sizes in the insertion holes. The limiting rod of the elastic band of the spring is inserted into the limiting groove, so that the angles of the gear and the annular disk can be locked at different positions, thereby locking when limiting pencils of different sizes, thereby preventing the pencils from shaking due to external forces and affecting the pencil sharpening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of the locking device in an embodiment of the present application;

[0013] Figure 2 This is a schematic structural diagram of the limiting mechanism in an embodiment of the present application;

[0014] Figure 3 This is a schematic cross-sectional view of the locking assembly in an embodiment of the present application;

[0015] In the figure: 10, pencil sharpener housing; 20, insertion hole; 30, limiting mechanism; 40, locking assembly; 50, limiting groove; 31, annular disk; 32, through groove; 33, limiting block; 34, first rotating shaft; 35, second rotating shaft; 36, transmission assembly; 361, gear ring sleeve; 362, rack; 363, gear; 41, rotating rod; 42, movable groove; 43, insertion rod; 44, fixing plate; 45, spring; 46, limiting rod. DETAILED DESCRIPTION

[0016] The embodiment of the present application discloses a modular housing locking device for a pencil sharpener. By inserting a limiting rod 46 between multiple different limiting grooves 50, multiple limiting blocks 33 can be locked at different positions, thereby stably limiting pencils of different sizes.

[0017] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0018] Please refer to Figure 1 and Figure 2 The present embodiment provides a modular housing locking device for a pencil sharpener, comprising a pencil sharpener housing 10, a socket 20 being provided in the middle of the pencil sharpener housing 10, a cavity being provided in the middle of the socket 20, a limiting mechanism 30 being provided inside the cavity, and a locking assembly 40 for locking the limiting mechanism 30 being provided inside the cavity, the limiting mechanism 30 comprising an annular disk 31, a through slot 32, a limiting block 33, a first rotating shaft 34, a second rotating shaft 35, and a transmission assembly 36, the annular disk 31 being rotatably connected to the interior of the cavity, a plurality of through slots 32 being provided on the front face of the annular disk 31, and the plurality of through slots 32 being equidistantly arranged in an annular arrangement, a plurality of limiting blocks 33 being rotatably connected to the back face of the annular disk 31, one end of the plurality of limiting blocks 33 extending into the interior of the socket 20, and one end of the plurality of limiting blocks 33 being in contact with the pencil, one end of the limiting block 33 being serrated, and the first rotating shaft 34 being slidably connected to the through slot 3 The second end of the second shaft 35 is fixedly arranged on the outside of the annular disk 31, and one end of the limit block 33 is sleeved and rotatably connected to the outside of the second shaft 35. The top of the limit block 33 is a telescopic structure, so that the two ends of the limit block 33 are respectively sleeved and rotatably connected to the first shaft 34 and the second shaft 35. The transmission assembly 36 is arranged inside the cavity. The transmission assembly 36 is used to drive the annular disk 31 to rotate. The rotation of the annular disk 31 causes the position of the second shaft 35 on the annular disk 31 to change, thereby driving the limit block 33 to rotate around the first shaft 34, so that the serrated end of the limit block 33 rotates toward the middle of the insertion hole 20, so that the multiple limit blocks 33 clamp the pencils inserted in the insertion hole 20, thereby improving the applicability of the pencil sharpener.

[0019] Please refer to Figure 1 and Figure 2The transmission assembly 36 includes a gear ring sleeve 361, a rack 362, and a gear 363. The gear ring sleeve 361 is fixedly arranged on the top of the annular disk 31, the rack 362 is meshedly connected to the top of the gear ring sleeve 361, and the gear 363 is meshedly connected to the bottom of the other end of the rack 362. The gear 363 is fixedly connected to the rotating rod 41, and the locking assembly 40 drives the gear 363 to rotate. Through the meshing of the gear 363 and the rack 362 and the meshing of the rack 362 and the gear ring sleeve 361, when the locking assembly 40 drives the gear 363 to rotate at the corner, it can drive the annular disk 31 to rotate, thereby driving multiple limit blocks 33 to clamp the pencil.

[0020] Please refer to Figure 1-Figure 3 , a plurality of annular limit grooves 50 are provided at the corners of the front side of the pencil sharpener housing 10, and the locking assembly 40 includes a rotating rod 41, a movable groove 42, an insertion rod 43, a fixed plate 44, a spring 45, and a limit rod 46. The rotating rod 41 is rotatably connected to the front side of the pencil sharpener housing 10, and the rotating rod 41 is used to drive the limit mechanism 30. The movable groove 42 is provided on the front side of the rotating rod 41, and the insertion rod 43 is slidably connected to the inside of the movable groove 42. Fixed blocks are provided on both sides of the insertion rod 43, and fixed grooves are provided on both sides of the movable groove 42. By sliding the fixed blocks in the fixed grooves, the insertion rod 43 can drive the rotating rod 41 to rotate, and the fixed plate 44 is fixedly provided on the front side of the insertion rod 43. The spring 45 is provided inside the rotating rod 41, and the two ends of the spring 45 are fixedly connected to the inner wall of the movable groove 42 and the insertion rod 43 respectively. The limiting rods 46 are fixedly arranged on both sides of the fixing plate 44, and the limiting rods 46 are connected with the limiting grooves 50 through an interlaced manner. The pencil models are different and the sizes are also different. A plurality of limiting grooves 50 are opened at the positions of the limiting rods 46 corresponding to the different types of pencils, so that when limiting the different types of pencils, the limiting rods 46 can be inserted into the limiting grooves 50, and the rotation of the rotating rod 41 is driven by the insertion rod 43 to rotate the gear 363, thereby driving the plurality of limiting blocks 33 to clamp the pencils. The elastic force of the spring 45 drives the insertion rod 43 to move toward the pencil sharpener housing 10, so that the two limiting rods 46 can be inserted into the plurality of limiting grooves 50, so that the two limiting rods 46 can limit the rotation of the insertion rod 43, thereby locking the plurality of limiting blocks 33 to prevent the limiting blocks 33 from shaking due to external force, thereby affecting the stability of pencil sharpening.

[0021] This application can explain its functional principles through the following operation methods:

[0022] When in use, a pencil is inserted into the insertion hole 20 on the pencil sharpener housing 10, and the fixing plate 44 inside the rotating rod 41 is pulled open, so that the fixing plate 44 and the insertion rod 43 move outward, and the two limiting rods 46 on one side of the fixing plate 44 are taken out from the limiting groove 50, so that the angle limit of the insertion rod 43 is released, and the fixing plate 44 is rotated, so that the insertion rod 43 drives the rotating rod 41 and the gear 363 to rotate, thereby driving the rack 362 engaged with the gear 363 to move accordingly, so that the gear ring sleeve 361 on the top of the annular disk 31 rotates accordingly, thereby driving the multiple second The position of the rotating shaft 35 changes, and the rotation of the second rotating shaft 35 causes the limiting block 33 to expand and contract and rotate around the first rotating shaft 34, so that the serrated end of the limiting block 33 moves toward the middle of the insertion hole 20, so that the multiple limiting blocks 33 can clamp pencils of different shapes in the middle. After the clamping is stable, the fixing plate 44 is released, and the two limiting rods 46 on the fixing plate 44 are reinserted into the limiting groove 50, limiting the angle of the fixing plate 44, so that the angles of the multiple limiting blocks 33 are locked, preventing the limiting blocks 33 from shaking arbitrarily due to external forces, which would affect the pencil sharpening effect.

[0023] Obviously, those skilled in the art may make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

[0024] The above is only a preferred specific implementation method of the embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and concept of the present application within the technical scope disclosed in the present application, and they should be covered by the scope of protection of the present application.

Claims

1. A modular housing locking device for a pencil sharpener, comprising a pencil sharpener housing (10), wherein a socket (20) is provided in the middle of the pencil sharpener housing (10), characterized in that: A plurality of annular limiting grooves (50) are provided at the corners of the front face of the pencil sharpener housing (10); a cavity is provided in the middle of the insertion hole (20); a limiting mechanism (30) is provided inside the cavity; a locking assembly (40) for locking the limiting mechanism (30) is provided inside the cavity; the locking assembly (40) comprises: A rotating rod (41) is rotatably connected to the front surface of the pencil sharpener housing (10), and the rotating rod (41) is used to drive the limiting mechanism (30); An insertion rod (43) is inserted and connected to the front side of the rotating rod (41); A fixing plate (44) is fixedly arranged on the front side of the insertion rod (43); Two limiting rods (46) are fixedly arranged on both sides of the fixing plate (44), and the limiting rods (46) are interpenetratingly connected with the limiting grooves (50).

2. A modular housing locking device for a pencil sharpener according to claim 1, characterized in that: The limiting mechanism (30) comprises: an annular disk (31) rotatably connected to the interior of the cavity; A plurality of limit blocks (33) are rotatably connected to the back of the annular disk (31), one end of each of the limit blocks (33) extends into the interior of the jack (20), and one end of each of the limit blocks (33) is in contact with and connected to a pencil.

3. A modular housing locking device for a pencil sharpener as claimed in claim 2, characterized in that: The limiting mechanism (30) further includes: A plurality of through slots (32) are provided on the front surface of the annular disk (31), and the plurality of through slots (32) are arranged in an equidistant annular pattern; A first rotating shaft (34) is slidably connected to the interior of the through slot (32), the first rotating shaft (34) is fixedly arranged inside the cavity, and the limiting block (33) is sleeved and rotatably connected to the outside of the first rotating shaft (34); The second rotating shaft (35) is fixedly arranged on the outer side of the annular disk (31), and one end of the limiting block (33) is sleeved and rotatably connected to the outer side of the second rotating shaft (35).

4. A modular housing locking device for a pencil sharpener as claimed in claim 2, characterized in that: A transmission assembly (36) is provided on the top of the limiting mechanism (30), and the transmission assembly (36) includes: A gear ring sleeve (361) is fixedly arranged on the top of the annular disk (31); a rack (362) meshingly connected to the top of the gear ring sleeve (361); The gear (363) is meshedly connected to the bottom of the other end of the rack (362), and the gear (363) is fixedly connected to the rotating rod (41).

5. The modular housing locking device for a pencil sharpener according to claim 1, wherein: A movable groove (42) is provided on the front of the rotating rod (41), and the insertion rod (43) is slidably connected to the inside of the movable groove (42). A spring (45) is provided inside the movable groove (42), and the two ends of the spring (45) are fixedly connected to the inner wall of the movable groove (42) and the insertion rod (43) respectively.

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