CN214688773U - Safety locking mechanism of electric pencil sharpener - Google Patents

Abstract

The utility model discloses a safety locking mechanism of electric pencil sharpener, set up on the inner core of electric pencil sharpener, including the locking mechanism, this locking mechanism includes slip locking piece, spacing locking piece and the locking piece that resets, accomplishes the locking and unblock that supply the pencil to import and export to the electric pencil sharpener inner core through three of them, makes the utility model discloses lock when not using to further protect the safety of user in the use, also protect pencil sharpener itself simultaneously, prevent that the foreign matter from getting into its inside and processing thereby lead to the pencil sharpener to suffer damage; still be provided with the regulating block that is used for adjusting safety locking mechanism and carries out locking or unblock on the slip locking piece, make the utility model discloses the accessible regulating block carries out regulating state, makes the utility model discloses a locking and unblock state are steerable.

Description

Safety locking mechanism of electric pencil sharpener

Technical Field

The utility model relates to a manufacturing and designing field of stationery, more specifically the saying so, it relates to a safety locking mechanism of electronic pencil sharpener.

Background

The pencil sharpener is a pencil sharpening tool and can be divided into a common pencil sharpener and an electric pencil sharpener; the electric pencil sharpener is widely used by means of a quick and efficient working mode, but because the electric pencil sharpener is controlled by an electronic instrument, fingers or other objects which are not pencils can enter the inner core of the pencil sharpener when the inner core of the pencil sharpener is replaced or careless, and then people can be injured or the electric pencil sharpener can be damaged, so that the safety locking mechanism for the electric pencil sharpener is very necessary to research for the use safety and the use durability of the electric pencil sharpener.

Disclosure of Invention

The utility model overcomes prior art's is not enough, provides a simple structure, reasonable in design, safe in utilization, use cost low safety locking mechanism of electronic pencil sharpener.

In order to solve the technical problem, the technical scheme of the utility model as follows:

a safety locking mechanism of an electric pencil sharpener is arranged on an inner core of the electric pencil sharpener and comprises a locking mechanism, wherein the locking mechanism comprises a sliding locking block, a limiting locking block and a resetting locking block, and the locking and unlocking of a pencil inlet and a pencil outlet of the inner core of the electric pencil sharpener are completed through the sliding locking block, the limiting locking block and the resetting locking block; the sliding locking block is also provided with an adjusting block for adjusting the safety locking mechanism to lock or unlock.

The sealing device further comprises a first sealing cover and a second sealing cover, wherein the first sealing cover is provided with a first sealing cover through hole, and the second sealing cover is provided with a second sealing cover through hole corresponding to the first sealing cover through hole; an assembly ring is arranged on one surface, close to the second sealing cover, of the first sealing cover, and the connection position of the first sealing cover and the second sealing cover is determined through the assembly ring; and the first cover and the second cover form a locking space; the sliding locking block, the limiting locking block and the resetting locking block are all arranged in the locking space.

Furthermore, the sliding locking block is Z-shaped and comprises a first sliding straight plate, a second sliding straight plate and a third sliding straight plate, the first sliding straight plate and the second sliding straight plate are parallel to each other, and the third sliding straight plate is connected with one end of the first sliding straight plate and one end of the second sliding straight plate respectively; one end of the first sliding straight plate, which is far away from the second sliding straight plate, is provided with a locking block which is in contact with the limiting locking block; the lower surface of the sliding locking block is provided with a sliding limiting block, and the adjusting block is arranged on the upper surface of the sliding locking block.

Furthermore, a sliding groove is formed in the first sealing cover, one end of the sliding groove is in contact with the assembling ring, and the sliding locking block is installed on the sliding groove; a sliding limiting groove is further formed in the sliding groove, and the sliding limiting block is arranged in the sliding limiting groove; the first cover is also provided with a sliding lock block limiting part used for limiting the position of the sliding lock block, and the sliding lock block limiting part comprises a first limiting part and a second limiting part, wherein the first limiting part is contacted with the first sliding straight plate, and the second limiting part is contacted with the second sliding straight plate.

Furthermore, a spring mounting column is further arranged at one end, away from the locking block, of the first sliding straight plate, and the spring mounting column moves in the sliding groove.

Further, a movable hollow is arranged on the first sealing cover, the movable hollow is communicated with the first sealing cover through hole, and the limiting locking block is arranged in the movable hollow; and a locking groove is also formed in one side, close to the sliding locking block, of the upper surface of the limiting locking block.

Furthermore, an opening is formed in the position, close to the limiting locking block, of the locking groove, so that the locking groove is in contact with the locking block; the corner of the opening of the locking groove, which is close to the through hole of the first sealing cover, adopts inclined surface transition, and the inclined surface is in arc surface transition with the inner wall of the locking groove and the corner of the outer surface of the limiting locking block; the corner of the side, which is contacted with the locking groove, of the locking block is also in transition of a cambered surface.

Furthermore, the reset locking block is in a block shape, a fixed mounting hole for fixing is formed in the reset locking block, a mounting column corresponding to the fixed mounting hole is arranged on the first sealing cover, a reset locking block limiting part for limiting the position of the reset locking block is further arranged around the mounting column, and the reset locking block limiting part is perpendicular to the first sealing cover; the reset locking block further comprises a reset sheet, and the reset sheet is close to one surface of the limit locking block and is in contact with the limit locking block.

Furthermore, the reset sheet penetrates through the limit locking block, the included angle between the reset sheet and the reset locking block is smaller than 90 degrees, and a reset sheet limiting block used for limiting the contraction position of the reset sheet is arranged on the reset locking block.

Further, the first sealing cover and the second sealing cover are connected through threads, and the first sealing cover is also connected with the inner core of the electric pencil sharpener through threads; the first sealing cover is provided with at least two first fixing screw holes for being in threaded connection with an inner core of the electric pencil sharpener; the first sealing cover is also provided with at least two first fixing columns which are in threaded connection with the second sealing cover, and the second sealing cover is provided with second fixing screw holes corresponding to the first fixing columns; the first fixing column is in a hollow column shape, and the inner wall of the first fixing column is provided with a thread for fastening; and an adjusting hollow part is arranged in the area of the second sealing cover corresponding to the moving range of the adjusting block.

The utility model has the advantages that:

1. the sliding locking block, the limiting locking block and the reset locking block of the utility model complete the locking and unlocking of the pencil inlet and outlet of the inner core of the electric pencil sharpener; the utility model can be locked when not in use, thereby further protecting the safety of users in use; meanwhile, the pencil sharpener is protected, foreign matters are prevented from entering the interior of the pencil sharpener and the pencil sharpener is damaged due to processing.

2. The utility model discloses on still be provided with the regulating block that is used for adjusting safety locking mechanism and carries out locking or unblock, make the utility model discloses the accessible regulating block carries out the regulation state, makes the utility model discloses a locking and unblock state are steerable.

3. The slip stopper that the lower surface of slip locking piece set up, and the slip stopper sets up in the spacing inslot that slides for the slip locking piece can obtain the spacing effect of certain degree, prevents that it from taking place the skew in the course of the work.

4. The slide lock block limiting part and the reset lock block limiting part further limit the positions of the slide lock block limiting part and the reset lock block limiting part, so that the slide lock block limiting part and the reset lock block limiting part are prevented from shifting in the working process.

5. First closing cap and second closing cap pass through threaded connection, make the utility model discloses subsequent maintenance or the cost reduction of maintenance only need unpack it apart directly right the utility model discloses maintain or trade impaired piece.

Drawings

Fig. 1 is an overall structure view of the pencil sharpener.

Fig. 2 is a front cover structure view.

Fig. 3 is a structural view of the inner core body.

Fig. 4 is a cross-sectional view of the inner core body.

FIG. 5 is a view showing a construction of a joint portion.

FIG. 6 is a view showing the structure of an engagement groove.

Fig. 7 is a structural view of the core body when the pencil sharpener, the transmission unit, and the lock mechanism are not assembled.

Fig. 8 is a structural view of one end of the docking space when the pencil sharpener unit, the transfer unit, and the lock mechanism are not assembled to the core body.

Fig. 9 is a structure view of the second partition plate.

Fig. 10 is a structural view of a pencil sharpener.

FIG. 11 is a view showing a second connection portion of the pencil sharpener.

Fig. 12 is a diagram showing a transmission unit structure.

Fig. 13 is a front view of the transfer tray.

Fig. 14 is a view showing a reverse side structure of the transfer plate.

Fig. 15 is a transmission shaft structure view.

FIG. 16 is an assembly view of the first cover and the locking mechanism.

Fig. 17 is a structural view of the lock mechanism.

Fig. 18 is a view showing the structure of the first cap.

Fig. 19 is a view showing the structure of the second cap.

Fig. 20 is a front structural view of a first cover structure in embodiment 1.

Fig. 21 is a top structural view of the slide lock in embodiment 1.

Fig. 22 is a structural view of a stopper in embodiment 1.

FIG. 23 is a structural view of a lock groove in embodiment 1.

Fig. 24 is a structural view of a reset lock in embodiment 1.

Fig. 25 is a view showing the structure of the lower part of the slide lock in embodiment 1.

Reference numbers in the figures:

1. an inner core body; 2. a housing; 3. a front cover; 11. a joining section; 12. a pencil rolling part; 13. a transmission section; 14. a locking mechanism; 15. a first partition plate; 16. a second partition plate; 17. a transfer space; 18. an installation space; 19. a docking space; 20. a locking space; 21. a joining groove; 22. an upper connecting groove; 23. a lower connecting groove; 24. a limiting groove; 31. a front cover through hole; 32. an adjusting plate; 33. a first adjusting straight plate; 34. a second adjusting straight plate; 35. a third adjusting straight plate; 111. connecting the bottom plates; 112. connecting the reinforcing plates; 113. a first reinforcing straight plate; 114. a second reinforcing straight plate; 115. a limiting block; 121. rolling a cutter; 122. a blade rolling frame; 123. a first connection portion; 124. a second connecting portion; 125. a first through hole; 126. a second through hole; 127. a limiting connecting block; 129. a tooth socket; 131. a transmission shaft; 132. a transfer plate; 133. a transfer plate through hole; 134. a boss portion; 135. a third connecting portion; 136. a third through hole; 137. a transfer shaft body; 138. a transfer wheel; 139. a gear; 140. opening the gap; 141. a sliding lock block; 142. a limiting lock block; 143. resetting the locking block; 144. mounting a column; 145. a reset sheet; 146. movably hollowing out; 147. a locking groove; 148. a sliding groove; 149. a locking block; 150. an adjusting block; 151. a first through hole; 162. a second through hole; 163. mounting blocks; 164. mounting hollowing out; 165. an auxiliary mounting block; 201. a first cover; 202. a first capping through-hole; 203. assembling a ring; 204. a second cover; 205. a second capping via; 206. the adjusting hollow-out part 301 is a first sliding straight plate; 302. a second sliding straight plate; 303. a third sliding straight plate; 304. a sliding limiting block; 305. a sliding limit groove; 306. a sliding lock block defining part; 307. a first defining section; 308. a second defining portion; 309. a barb; 310. a spring mounting post; 311. recessing; 312. a protrusion; 313. a bevel; 314. a cambered surface; 315. fixing the mounting hole; 316. sinking; 317. a limit contact; 318. a reset plate limiting block; 319. a first fixing screw hole; 320. a first fixed column; 321. a second fixing screw hole; 322. and resetting the lock block limiting part.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments are only specific illustrations of the present invention, and the purpose thereof is to make the technical solution of the present invention better understood by those skilled in the art, and should not be considered as limitations of the present invention.

Example 1:

as shown in fig. 16, a safety locking mechanism 14 of an electric pencil sharpener is arranged on an inner core of the electric pencil sharpener, including a locking mechanism 14, the locking mechanism 14 includes a sliding locking block 141, a limiting locking block 142 and a reset locking block 143, and the locking and unlocking of the pencil inlet and outlet for the inner core of the electric pencil sharpener are completed through the three locking blocks, so that the utility model discloses lock when not in use, thereby further protecting the safety of a user in the use process, simultaneously also protecting the pencil sharpener, preventing foreign matters from entering the interior of the sharpener and processing the damage of the pencil sharpener; still be provided with the regulating block 150 that is used for adjusting safety locking mechanism 14 and carries out locking or unblock on slip locking block 141, make the utility model discloses accessible regulating block 150 carries out the adjusting state, makes the utility model discloses a locking and unblock state are steerable.

As shown in fig. 21 and 25, in the present embodiment, a first cover 201 and a second cover 204 are included, a first cover through hole 202 is provided on the first cover 201, and a second cover through hole 205 corresponding to the first cover through hole 202 is provided on the second cover 204; an assembling ring 203 is arranged on one surface of the first sealing cover 201 close to the second sealing cover 204, and the connecting position of the first sealing cover 201 and the second sealing cover 204 is determined through the assembling ring 203, so that the installation of the utility model is more stable and firm; and the first cover 201 and the second cover 204 form a locking space 20; the sliding lock block 141, the limit lock block 142 and the reset lock block 143 are disposed in the locking space 20.

In this embodiment, the sliding lock block 141 is "Z" shaped, and includes a first sliding straight plate 301, a second sliding straight plate 302 and a third sliding straight plate 303, where the first sliding straight plate 301 and the second sliding straight plate 302 are parallel to each other, and the third sliding straight plate 303 is connected to one end of the first sliding straight plate 301 and one end of the second sliding straight plate 302 respectively; a locking block 149 which is contacted with the limit locking block 142 is arranged at one end of the first sliding straight plate 301, which is far away from the second sliding straight plate 302; a sliding limiting block 304 is arranged on the lower surface of the sliding locking block 141, and the adjusting block 150 is arranged on the upper surface of the sliding locking block 141; a sliding groove 148 is provided on the first cover 201, and one end of the sliding groove 148 is in contact with the fitting ring 203, the sliding lock piece 141 is mounted on the sliding groove 148; a sliding limiting groove 305 is further arranged in the sliding groove 148, and the sliding limiting block 304 is arranged in the sliding limiting groove 305, so that the sliding locking block 141 can obtain a limiting effect to a certain extent, and is prevented from deviating in the working process; the first cover 201 is also provided with a sliding lock block defining part 306 for defining the position of the sliding lock block 141, the sliding lock block defining part 306 comprises a first defining part 307 and a second defining part 308, wherein the first defining part 307 is in contact with the first sliding straight plate 301, and the second defining part 308 is in contact with the second sliding straight plate 302, so that the anti-sliding lock block is defined in the working position to prevent the anti-sliding lock block from being separated from the working position.

In some preferred manners, the sliding limiting block 304 is disposed on the lower surface of the first sliding straight plate 301, and the adjusting block 150 is disposed on the upper surface of the second sliding straight plate 302.

In some preferred modes, the third sliding straight plate 303 is perpendicular to the first sliding straight plate 301 and the second sliding straight plate 302, so that the sliding lock block 141 is firmer and more stable as a whole and is more suitable for the sliding working state.

In some preferred manners, a barb 309 is further disposed at an end of the second limiting portion 308 away from the first cover 201, and an included angle between the barb 309 and the second limiting portion 308 is in contact with the second sliding straight plate 302, so that the installation of the sliding lock block 141 is firmer.

In some preferred manners, a spring mounting column 310 is further disposed at an end of the first sliding straight plate 301 away from the locking block 149, and the spring mounting column 310 moves in the sliding groove 148.

In some preferred modes, still can be provided with the spring on spring erection column 310, the one end and the first straight board 301 contact of sliding of this spring, the other end and the contact of fitting ring 203 make the utility model discloses an accessible spring controls the switching of unblock and lock-out state, and then makes the utility model discloses can be applied to more extensive field.

As shown in fig. 22 and 23, in the present embodiment, the first cover 201 is provided with a movable hollow 146, the movable hollow 146 is communicated with the first cover through hole 202, and the limiting lock block 142 is disposed in the movable hollow 146; a locking groove 147 is further formed on the upper surface of the limit lock block 142 on the side close to the slide lock block 141.

In some preferred modes, both sides of the limiting lock block 142 are provided with the recess 311, and the position corresponding to the recess 311 in the movable hollow 146 is provided with the protrusion 312, so that the limiting lock block 142 is further limited in the movable range, and the position change of the limiting lock block in the movable hollow 146 is prevented from causing the failure of the utility model.

In some preferred forms, the locking slot 147 is provided with an opening near the limit lock block 142 to allow it to contact the lock block 149; the corner of the opening of the locking groove 147 close to the first cover through hole 202 is excessive by adopting an inclined surface 313, and the corners of the inclined surface 313, the inner wall of the locking groove 147 and the outer side surface of the limiting locking block 142 are excessive by adopting an arc surface 314; the corner of the locking block 149 on the side contacting the locking groove 147 is also excessive by adopting the cambered surface 314; make the utility model discloses after the cambered surface 314 of locking piece 149 and the inclined plane 313 contact of locking groove 147 in the reset process, guide locking piece 149 to get into locking groove 147 and then both accomplish the locking.

As shown in fig. 24, in this embodiment, the reset locking block 143 is rectangular, a fixing mounting hole 315 is disposed on the reset locking block 143 for fixing, a mounting post 144 corresponding to the fixing mounting hole 315 is disposed on the first cover 201, a reset locking block limiting portion 322 for limiting the position of the reset locking block 143 is further disposed around the mounting post 144, and the reset locking block limiting portion 322 is perpendicular to the first cover 201; the reset locking piece 143 further includes a reset piece 145, and the reset piece 145 contacts the limit locking piece 142 on a surface of the reset locking piece 143 near the limit locking piece 142.

In some preferred manners, a recess 316 is provided at a position of the first cover 201 for installing the reset locking piece 143, and the reset locking piece 143 is provided in the recess 316, so that the space in the locking space 20 is more sufficient, and the parts will not conflict when working.

In some preferred manners, three cylindrical limit contacts 317 are further disposed on a side of the reset lock block 143 away from the reset plate 145, and after the first cover 201 and the second cover 204 are assembled, the limit contacts 317 contact with the second cover 204, so as to further limit the position of the reset lock block 143.

In some preferred modes, the limiting lock block 142 is penetrated by the reset sheet 145, and an included angle between the reset sheet 145 and the reset lock block 143 is smaller than 90 degrees, and generally 30 degrees is adopted; the reset plate 145 has elasticity and continues to contract toward the reset locking piece 143, and a reset plate limiting piece 318 for limiting the contraction position of the reset plate 145 is disposed on the reset locking piece 143, so as to prevent the reset plate 145 from contracting excessively and limit the angle between the reset plate 145 and the reset locking piece 143 when the reset plate 145 is reset.

As shown in fig. 20, in some preferred modes, the first cover 201 and the second cover 204 are connected by screw threads, and the first cover 201 is also connected with the inner core of the electric pencil sharpener by screw threads; the first sealing cover 201 is provided with two first fixing screw holes 319 which are used for being in threaded connection with an inner core of the electric pencil sharpener; two first fixing posts 320 for screw connection with the second cover 204 are further arranged on the first cover 201, and a second fixing screw hole 320 is arranged at a position of the second cover 204 corresponding to the first fixing posts 320; the first fixing column 320 is in a hollow column shape, and a thread for fastening is arranged on the inner wall of the first fixing column; the first sealing cover 201 and the second sealing cover 204 are connected through threads, so that the cost of subsequent maintenance or repair of the utility model is reduced, and the utility model can be directly maintained or damaged parts can be replaced only by disassembling the sealing cover; the area corresponding to the range of motion of the adjusting block 150 on the second cover 204 is provided with an adjusting hollow 206, and the adjusting block 150 extends out of the adjusting hollow 206, so that the adjusting block 150 can be conveniently operated.

It should be noted that other features of the present invention are the conventional and conventional connection modes, and therefore, the details are not repeated.

Example 2:

as shown in fig. 3 and 4, the safety locking mechanism of the electric pencil sharpener is arranged on the pencil sharpener and comprises an inner core body 1, wherein the inner core body 1 is provided with a connecting part 11 for connecting with the pencil sharpener; the inner core body 1 further comprises a pencil rolling part 12 for rolling a pencil, a transmission part 13 for feeding the pencil and a locking mechanism 14 for protecting fingers of people or preventing foreign matters from entering the inner core, and the pencil rolling part 12, the transmission part 13 and the locking mechanism 14 can be detached and assembled; the utility model is connected with the corresponding part through the connecting part 11; and the pencil coiling part 12, the transmission part 13 and the locking mechanism 14 can be disassembled and assembled, so that the later maintenance and repair cost is low, the maintenance or repair can be carried out on the components, and the time cost of the maintenance or repair is greatly reduced.

As shown in fig. 5, in some preferred modes, the inner core body 1 is generally cylindrical, and two engaging portions 11 are arranged on the surface of the outer side of the inner core body 1, and the two engaging portions 11 are in the same plane, so that the connection of the inner core body 1 is firmer and more stable; the joining part 11 comprises a joining bottom plate 111 and a joining reinforcing plate 112, wherein the side surface of the joining bottom plate 111 is connected with the surface of the outer side of the core body 1, the joining reinforcing plate 112 is arranged on the upper surface of the joining bottom plate 111 and is connected with the surface of the outer side of the core body 1, and the joining reinforcing plate 112 is perpendicular to the joining bottom plate 111; the joining and reinforcing plate 112 comprises a first reinforcing straight plate 113 and five second reinforcing straight plates 114, and two ends of each second reinforcing straight plate 114 are respectively connected with the surface of the outer side of the inner core body 1 and the first reinforcing straight plate 113; a limiting block 115 for limiting the position of the inner core body 1 is further arranged on the surface of the first reinforcing straight plate 113 away from the second reinforcing straight plate 114, for further limiting the installation position of the inner core body 1.

In some preferred manners, the length of the second reinforcing straight plate 114 closest to the butt space 19 is smaller than the length of the other second reinforcing straight plates 114, so that the first reinforcing straight plate 113 is connected with the second reinforcing straight plate to form a slope, and the slope can also play a role in limiting the installation position of the core body 1.

As shown in fig. 1 and 6, in the present embodiment, the pencil sharpener further includes an outer casing 2, the inner core body 1 is disposed in the outer casing 2, and an opening is disposed on the outer casing 2 for the inner core body 1 to be detached and moved in and out; a coupling groove 21 corresponding to the coupling portion 11 is formed on the surface of the inner side of the housing 2; the joining groove 21 comprises an upper joining groove 22 and a lower joining groove 23, the upper joining groove 22 is arranged above the lower joining groove 23, and the distance between the upper joining groove 22 and the lower joining groove 23 is larger than the thickness of the joining bottom plate 111; still be provided with the spacing groove 24 that corresponds stopper 115 on last linking groove 22, spacing groove 24 and stopper 115 cooperation make the utility model discloses the connection after accomplishing the assembly is more firm and stable.

As shown in fig. 7 and 8, in some preferred modes, the inner core body 1 is a hollow cylinder, and a first partition plate 15 and a second partition plate 16 are arranged inside the hollow space of the inner core body 1 to partition the hollow space of the inner core body 1 into three spaces, namely a transfer space 17, an installation space 18 and a butt joint space 19; the transmission space 17 and the installation space 18 are provided at both ends of the first partition plate 15, and the installation space 18 and the docking space 19 are provided at both ends of the second partition plate 16, wherein the transmission space 17 and the docking space 19 are provided at both ends of the core body 1; the first partition plate 15 is provided with a first through hole 151, and the second partition plate 16 is provided with a second through hole 162; the utility model discloses a butt joint space 19 is connected fixedly with the pencil sharpener to be connected with the drive mechanism of pencil sharpener, make the utility model discloses an assembly has possessed sufficient space.

As shown in fig. 9, in some preferred modes, the second partition plate 16 is detachable, and the second partition plate 16 is provided with four mounting blocks 163 extending outwards, and a mounting hollow 164 is provided at a position of the inner core body 1 corresponding to the mounting blocks 163; the mounting block 163 is also provided with an auxiliary mounting block 165 which facilitates the mounting block 163 to enter the mounting hollow 164 and limit the mounting hollow 164; the auxiliary mounting block 165 has a right-angled trapezoidal column shape with its hypotenuse facing the first partition plate 15.

As shown in fig. 10 and 11, in the present embodiment, the pencil sharpener 12 is disposed in the installation space 18 and includes a sharpener 121 and a sharpener holder 122, the sharpener 121 is disposed on the sharpener holder 122, and a first connecting portion 123 and a second connecting portion 124 are disposed at two ends of the sharpener holder 122, wherein the first connecting portion 123 is disposed in the first through hole 151, and the second connecting portion 124 is disposed in the second through hole 162, so that the pencil sharpener 12 is fixed in the installation space 18; a first through hole 125 through which the first connection portion 123 is inserted is provided, and a second through hole 126 through which the second connection portion 124 is inserted is provided; the second connecting part 124 is hollow, the end face of the second connecting part, which is far away from the first connecting part 123, is missing, and the inner wall of the second connecting part 124 is provided with a limiting connecting block 127 for connecting and fixing with a transmission mechanism of a pencil sharpener, so that the transmission effect of the pencil sharpener is better; a tooth groove 129 for engaging with the winding blade 121 is further provided in the installation space 18, and the winding blade 121 of the present invention can stably operate through the tooth groove 129.

As shown in fig. 12, 13, 14, and 15, in the present embodiment, the transmitting portion 13 is disposed in the transmitting space 17, the transmitting portion 13 includes a transmitting shaft 131 and a transmitting disc 132, wherein the transmitting disc 132 is in contact with the transmitting shaft 131 and the pen winding portion 12, and the pen winding portion 12 drives the transmitting disc 132 to move; the transmission disc 132 is provided with a transmission disc through hole 133; a projection 134 contacting the transmission shaft 131 is provided on one surface of the transmission disc 132, and the projection 134 is circumferentially provided in accordance with the transmission disc through hole 133; a third connecting part 135 is arranged on the other surface of the transmission disc 132, a third through hole 136 is arranged on the third connecting part 135 and penetrates through the third connecting part, and the third through hole 136 is communicated with the transmission disc through hole 133; the third connection part 135 is disposed in the first passing hole 151, and the first connection part 123 is disposed in the third through hole 136 to be connected to the third connection part 135; the transmission shaft 131 comprises a transmission shaft body 137 and a transmission wheel 138, wherein the transmission wheel 138 is arranged on the transmission shaft body 137 at the middle position, and the inner diameter of the transmission wheel 138 at the middle position is smaller than that at the two end positions; a gear 139 is further arranged on the transmission shaft body 137, the gear 139 is arranged at one end of the transmission shaft body 137 and is in contact with the transmission wheel 138, and the gear 139 and the transmission wheel 138 are in worm transmission; two groups of gaps 140 for installing the transmission shafts 131 are further arranged at one end of the inner core body 1 provided with the transmission space 17, and the gaps 140 enable the transmission shafts 131 to be balanced with each other.

In some preferred modes, the transmission shaft body 137 mounted on the notch 140 is oppositely arranged, so that the end of the transmission shaft body 137, on which the gear 139 is arranged, is oppositely oriented, and the gear 139 can be driven by the protrusion 134 when the protrusion 134 of the transmission wheel 138 is contacted, so that a pencil to be processed is pulled in or pushed out through the transmission wheel 138.

As shown in fig. 16, 17 and 18, in this embodiment, the core body 1 further includes a first cover 201 for closing the transmission space 17, and the first cover 201 is connected to the core body 1 by a screw thread, so that the maintenance and replacement of the transmission part 13 in the following process of the present invention are more convenient and the overall cost is reduced; a first cover through hole 202 is formed in the first cover 201; a mounting ring 203 is arranged on one side of the first cover 201 far away from the transmission space 17; the inner core body 1 further comprises a second cover 204, the second cover 204 closes one side of the first cover 201 away from the transmission space 17 through cooperation with the assembling ring 203, the first cover 201 and the second cover 204 form a locking space 20, and a second cover through hole 205 corresponding to the first cover through hole 202 is further arranged on the second cover 204; the first cover 201 and the second cover 204 are connected by screw threads, so that the following maintenance and replacement for the locking mechanism 14 of the present invention are more convenient and reduce the overall cost.

As shown in fig. 19, in the present embodiment, the locking mechanism 14 is disposed in the locking space 20, and includes a sliding lock block 141, a limit lock block 142, and a reset lock block 143; the first cover 201 is provided with a mounting column 144 on one side far away from the transfer space 17, and the reset locking block 143 is assembled through the mounting column 144; the reset locking block 143 includes a reset plate 145, and the reset plate 145 is connected to the limit locking block 142; the first sealing cover 201 is provided with a movable hollow 146, the movable hollow 146 is communicated with the first sealing cover through hole 202, and the limiting lock block 142 is arranged in the movable hollow 146; a locking groove 147 is formed in the limit locking piece 142 and used for contacting the sliding locking piece 141 and completing unlocking or locking; the first cover 201 is provided with a sliding groove 148, and a sliding locking block 141 is arranged on the sliding groove 148; the slide lock block 141 is provided with a lock block 149 which is in contact with the lock groove 147, and the slide lock block 141 is provided with an adjusting block 150; an adjusting hollow 206 is arranged in the area of the second cover 204 corresponding to the moving range of the adjusting block 150.

As shown in fig. 2, in some preferred embodiments, the pencil sharpener further includes a front cover 3 for closing the opening of the housing 2, the front cover 3 is provided with a front cover through hole 31 corresponding to the first cover through hole 202, the second cover through hole 205, the first through hole 125, the third through hole 136 and the transmission disc through hole 133, and a pencil to be machined enters the pencil sharpener 12 through the front cover through hole 31, the first cover through hole 202, the second cover through hole 205, the first through hole 125, the third through hole 136 and the transmission disc through hole 133 for machining; an adjusting plate 32 contacted with the adjusting block 150 is arranged on one surface of the front cover 3 contacted with the shell 2; the adjusting plate 32 comprises a first adjusting straight plate 33 and a second adjusting straight plate 34, the first adjusting straight plate 33 and the second adjusting straight plate 34 are respectively arranged at positions corresponding to the moving range of the adjusting block 150, the distance length between the first adjusting straight plate 33 and the second adjusting straight plate 34 is the length of the moving range of the adjusting block 150, and the first adjusting straight plate 33 and the second adjusting straight plate 34 are connected through a third adjusting straight plate 35; the third adjusting straight plate 35 is in contact with the adjusting block 150; the position where the third adjusting straight plate 35 contacts with the first adjusting straight plate 33 contacts with the adjusting block 150 when the sliding locking block 141 contacts with the limiting locking block 142; the contact position of the third adjusting straight plate 35 and the second adjusting straight plate 34 is in contact with the adjusting block 150 when the sliding locking block 141 and the limiting locking block 142 are not in contact; drive regulating block 150 through the third straight plate and slide after the installation of protecgulum 3, drive slip locking piece 141 through regulating block 150 and keep away from spacing locking piece 142 for locking mechanism 14 unblock and then the pencil can get into the utility model discloses process.

It should be noted that other features of the present invention are the conventional and conventional connection modes, and therefore, the details are not repeated.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the concept of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. A safety locking mechanism of an electric pencil sharpener is arranged on an inner core of the electric pencil sharpener and is characterized by comprising a locking mechanism, wherein the locking mechanism comprises a sliding locking block, a limiting locking block and a resetting locking block, and the locking and unlocking of a pencil inlet and a pencil outlet of the inner core of the electric pencil sharpener are completed through the sliding locking block, the limiting locking block and the resetting locking block; the sliding locking block is also provided with an adjusting block for adjusting the safety locking mechanism to lock or unlock.

2. The safety locking mechanism of the electric pencil sharpener of claim 1, comprising a first cover and a second cover, wherein the first cover is provided with a first cover through hole, and the second cover is provided with a second cover through hole corresponding to the first cover through hole; an assembly ring is arranged on one surface, close to the second sealing cover, of the first sealing cover, and the connection position of the first sealing cover and the second sealing cover is determined through the assembly ring; and the first cover and the second cover form a locking space; the sliding locking block, the limiting locking block and the resetting locking block are all arranged in the locking space.

3. The safety locking mechanism of the electric pencil sharpener of claim 2, wherein the sliding locking block is in a "Z" shape and comprises a first sliding straight plate, a second sliding straight plate and a third sliding straight plate, the first sliding straight plate and the second sliding straight plate are parallel to each other, and the third sliding straight plate is connected with one end of the first sliding straight plate and one end of the second sliding straight plate respectively; one end of the first sliding straight plate, which is far away from the second sliding straight plate, is provided with a locking block which is in contact with the limiting locking block; the lower surface of the sliding locking block is provided with a sliding limiting block, and the adjusting block is arranged on the upper surface of the sliding locking block.

4. The safety locking mechanism of the electric pencil sharpener of claim 2 or 3, wherein a sliding groove is provided on the first cover, and one end of the sliding groove is in contact with the mounting ring, and the sliding lock block is mounted on the sliding groove; a sliding limiting groove is also arranged in the sliding groove, and a sliding limiting block is arranged in the sliding limiting groove; the first cover is also provided with a sliding lock block limiting part used for limiting the position of the sliding lock block, and the sliding lock block limiting part comprises a first limiting part and a second limiting part, wherein the first limiting part is contacted with the first sliding straight plate, and the second limiting part is contacted with the second sliding straight plate.

5. The safety locking mechanism of the electric pencil sharpener of claim 4, wherein a spring mounting post is further arranged at one end of the first sliding straight plate far away from the locking block, and the spring mounting post moves in the sliding groove.

6. The safety locking mechanism of the electric pencil sharpener according to claim 2, wherein the first cover is provided with a movable hollow, the movable hollow is communicated with the first cover through hole, and the limit locking block is arranged in the movable hollow; and a locking groove is also formed in one side, close to the sliding locking block, of the upper surface of the limiting locking block.

7. The safety locking mechanism of the electric pencil sharpener of claim 3 or 6, wherein the locking groove is provided with an opening near the position of the limit locking block so as to be in contact with the locking block; the corner of the opening of the locking groove, which is close to the through hole of the first sealing cover, adopts inclined surface transition, and the inclined surface is in arc surface transition with the inner wall of the locking groove and the corner of the outer surface of the limiting locking block; the corner of the side, which is contacted with the locking groove, of the locking block is also in transition of a cambered surface.

8. The safety locking mechanism of the electric pencil sharpener of claim 2, wherein the reset locking block is block-shaped, a fixing mounting hole for fixing is arranged on the reset locking block, a mounting column corresponding to the fixing mounting hole is arranged on the first sealing cover, a reset locking block limiting part for limiting the position of the reset locking block is further arranged around the mounting column, and the reset locking block limiting part is perpendicular to the first sealing cover; the reset locking block further comprises a reset sheet, and the reset sheet is close to one surface of the limit locking block and is in contact with the limit locking block.

9. The safety locking mechanism of the electric pencil sharpener of claim 8, wherein the reset plate penetrates the limit lock block, an included angle between the reset plate and the reset lock block is less than 90 °, and a reset plate limit block for limiting the contraction position of the reset plate is arranged on the reset lock block.

10. The safety locking mechanism of the electric pencil sharpener of claim 2, wherein the first cover and the second cover are connected by screw threads, and the first cover and the inner core of the electric pencil sharpener are also connected by screw threads; the first sealing cover is provided with at least two first fixing screw holes for being in threaded connection with an inner core of the electric pencil sharpener; the first sealing cover is also provided with at least two first fixing columns which are in threaded connection with the second sealing cover, and the second sealing cover is provided with second fixing screw holes corresponding to the first fixing columns; the first fixing column is in a hollow column shape, and the inner wall of the first fixing column is provided with a thread for fastening; and an adjusting hollow part is arranged in the area of the second sealing cover corresponding to the moving range of the adjusting block.

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