CN110064477B

CN110064477B - Easy-to-maintain paper shredder

Info

Publication number: CN110064477B
Application number: CN201910356756.2A
Authority: CN
Inventors: 金涛; 江浩
Original assignee: Hangzhou Magicfirm Network Technology Co ltd
Current assignee: Jiangmen Yuanfeng Office Supplies Co.,Ltd.
Priority date: 2019-04-29
Filing date: 2019-04-29
Publication date: 2021-04-06
Anticipated expiration: 2039-04-29
Also published as: CN110064477A

Abstract

The invention discloses a paper shredder convenient to maintain, which comprises a box body, two groups of crushing rollers arranged in the box body and a cover plate arranged at the top of the box body, wherein the two groups of crushing rollers are symmetrically arranged on the inner wall of the box body; when the driving motor needs to be maintained, the driving motor can be conveniently taken out of the installation box, and the maintenance cost of the driving motor is reduced.

Description

Easy-to-maintain paper shredder

Technical Field

The invention belongs to the technical field of office supplies, and particularly relates to a paper shredder convenient to maintain.

Background

Every enterprise has many confidential documents, so the paper shredder is a necessary office supply for the enterprise, and the paper shredder can shred the documents needing confidentiality. The paper shredder is composed of a group of rotating blades, a paper comb and a driving motor. The paper is fed from the middle of the mutually meshed blades and is divided into a plurality of small paper sheets so as to achieve the purpose of confidentiality. The driving motor is used as a power component to drive the cutting edge to rotate so as to achieve the purpose of shredding, the driving motor is easy to break down after long-term work, the motor of a common shredder is installed in the shredder and is inconvenient to detach, the motor maintenance needs high cost, and the shredder is embarrassed in maintenance.

Disclosure of Invention

The invention provides a paper shredder which is convenient to maintain in order to overcome the defects of the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme: a shredder convenient to maintain comprises a box body, two groups of shredding rolls arranged in the box body and a cover plate arranged at the top of the box body, wherein the two groups of shredding rolls are symmetrically arranged on the inner wall of the box body, a feed inlet is arranged on the cover plate, the cover plate is detachably connected to the box body, a waste paper box is arranged in the box body in a penetrating manner, the waste paper box is arranged below the shredding rolls, a third connecting shaft is arranged on the side wall of each shredding roll, a third movable groove matched with the third connecting shaft is arranged on the inner wall of the box body, an installation box is arranged on the side wall of the box body, a driving motor is detachably connected in the installation box, a transmission cavity is arranged on the inner wall of the box body, and an output shaft of; the driving motor provides power for the crushing roller and plays a role in crushing the paper placed in the box body; when the driving motor needs to be maintained, the driving motor can be conveniently taken out of the installation box, and the maintenance cost of the driving motor is reduced; set up driving motor in the install bin alone, avoid the wastepaper to be caused the influence to driving motor's work on being walked into driving motor's output shaft, ensure driving motor job stabilization nature.

A first driving wheel and a second driving wheel are arranged in the transmission cavity, a transmission groove is formed in the first driving wheel, an output shaft of the driving motor penetrates through the transmission groove, and a first arc-shaped elastic sheet is arranged on the inner wall of the installation box; under the mutual matching of the transmission groove and the output shaft of the driving motor, the driving motor can also form matching with the first transmission wheel after being disassembled and assembled so as to provide rotary power for the crushing roller; first arc shell fragment plays fixed action to driving motor, fixes driving motor at the install bin middle part position, increases the cooperation effect of driving motor and first drive wheel, avoids driving motor to take place the shake at the during operation.

A sixth movable groove is formed in the driving motor, a bump penetrates through the sixth movable groove, a second connecting spring matched with the bump is arranged in the sixth movable groove, and a second groove matched with the bump is formed in the top of the mounting box; when installing driving motor into the install bin, make the lug aim at the second recess, make second connecting spring be in compression state under the effect of second recess, ensure the contact effect of lug and second recess, under the contact of lug and second recess, for driving motor provides the power and connects, make driving motor can normally work after the install bin of packing into.

A second limiting plate is arranged at the bottom of the lug, and a second arc-shaped elastic sheet matched with the lug is arranged at the bottom of the sixth movable groove; after the driving motor is arranged in the mounting box, the lug enters the sixth movable groove under the action of the second groove, and the lug is contacted with the second arc-shaped elastic sheet, so that a power supply is connected with the driving motor to supply power to the driving motor; under the effect of second limiting plate, play limiting displacement to the lug, prevent that the lug from deviating from the sixth activity inslot, promote the contact effect of lug and second arc shell fragment.

The mounting box is movably connected with a box cover, and a lock catch matched with the mounting box is arranged on the box cover; a through hole is formed in the side wall of the installation box; after the driving motor is arranged in the installation box, the rotating box cover has a sealing effect on the installation box under the effect of the box cover, so that the driving motor is supported, and the driving motor is prevented from falling out of the installation box; the box cover is fixed on the installation box through the lock catch, so that the connection effect of the box cover and the installation box is ensured, and a reliable supporting effect is provided for the driving motor; make the air can circulate in the install bin through the through-hole, the driving motor's of being convenient for heat dissipation prevents that driving motor from generating heat after lasting work and influencing motor life.

The crushing roller is provided with a mounting groove, a plurality of first connecting blocks are arranged in the mounting groove, blades are arranged on the first connecting blocks, and the first connecting blocks can rotate to the mounting groove around connecting points of the first connecting blocks and the mounting groove; the staple in the vertical direction directly slides down from the mounting groove, the staple bound transversely is contacted with the blade, when the staple in the paper is contacted with the blade on the crushing roller, the blade cannot cut off the staple, and the blade generates thrust to the first connecting block after being blocked by the staple, so that the first connecting block is pushed to turn over towards the mounting groove, the blade enters the mounting groove, the distance between the two groups of crushing rollers is increased, the staple falls from the crushing rollers, and the damage of the blade caused by the fact that the staple clamps the crushing rollers is avoided; the paper can be directly placed into the paper shredder for shredding through the rotation of the blade, staples in the paper do not need to be taken out in advance, the operation of shredding the paper is simplified, and the shredding efficiency of the paper is improved.

A first movable groove is formed in the inner wall of the mounting groove, a second movable groove is formed in the bottom of the first movable groove, a first connecting shaft matched with the first movable groove is arranged on the first connecting block, and a fixing assembly matched with the first connecting shaft is arranged in the second movable groove; the detachable connection of the first connecting block and the mounting groove is realized under the mutual matching of the movable groove and the first connecting shaft, so that the blade can be conveniently detached from the crushing roller to maintain the blade; when packing into the mounting groove with first linkage block in, insert first connecting axle in the first activity inslot, make first connecting axle move to second activity tank bottom along second activity groove, to first connecting axle fixed action under fixed subassembly's effect, fix first connecting axle at second activity inslot to fix first linkage block in the mounting groove, be convenient for play crushing effect to the paper through the blade.

The invention has the following advantages: when the driving motor needs to be maintained, the driving motor can be conveniently taken out of the installation box, and the maintenance cost of the driving motor is reduced; set up driving motor in the install bin alone, avoid the wastepaper to be caused the influence to driving motor's work on being walked into driving motor's output shaft, ensure driving motor job stabilization nature.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a first cross-sectional view of the present invention.

Fig. 3 is an enlarged view of fig. 2 at F.

FIG. 4 is a second cross-sectional view of the present invention.

Fig. 5 is a third schematic cross-sectional view of the present invention.

Fig. 6 is an enlarged view of a portion a in fig. 5.

Fig. 7 is an enlarged view of fig. 5 at H.

Fig. 8 is a fourth schematic cross-sectional view of the present invention.

Fig. 9 is a cross-sectional view of the fifth embodiment of the present invention.

Fig. 10 is an enlarged view at G in fig. 9.

FIG. 11 is a schematic view of the construction of the crushing roller of the present invention.

FIG. 12 is a first schematic cross-sectional view of a crushing roller of the present invention.

Fig. 13 is an enlarged view of fig. 12 at B.

FIG. 14 is a second schematic sectional view of a crushing roller according to the present invention.

Fig. 15 is an enlarged view of fig. 14 at C.

Fig. 16 is a schematic structural view of the waste paper box of the present invention.

Fig. 17 is a first sectional view of the waste paper box of the present invention.

Fig. 18 is a schematic sectional view of the waste paper box of the present invention.

Fig. 19 is an enlarged view of fig. 18 at D.

Fig. 20 is a third sectional view of the waste paper box of the present invention.

Fig. 21 is an enlarged view of fig. 20 at E.

Fig. 22 is a fourth schematic sectional view of the waste paper box of the present invention.

Detailed Description

As shown in fig. 1-22, a shredder convenient for maintenance comprises a box body 1, two sets of crushing rollers 2 arranged in the box body 1 and a cover plate 3 arranged at the top of the box body 1, wherein the two sets of crushing rollers 2 are symmetrically arranged on the inner wall of the box body 1, the cover plate 3 is provided with a feed inlet 31 for placing paper, and the feed inlet is arranged at an upper position between the two sets of crushing rollers; the cover plate 3 is detachably connected to the box body 1, a waste paper box 4 penetrates through the box body 1, the waste paper box 4 is arranged below the crushing roller 2, and paper scraps crushed by the crushing roller fall into the waste paper box, so that the paper scraps are conveniently collected; a plurality of mounting grooves 21 are formed in the crushing roller 2, a plurality of first connecting blocks 22 are arranged in the mounting grooves 21, blades 221 are arranged on the first connecting blocks 22, and the first connecting blocks 22 can rotate to the mounting grooves 21 around connecting points with the mounting grooves 21; when the paper is crushed, the paper is put in from the feed inlet, and the paper is crushed by the crushing roller; the staple in the vertical direction directly slides down from the mounting groove, the staple bound transversely is contacted with the blade, when the staple in the paper is contacted with the blade on the crushing roller, the blade cannot cut off the staple, and the blade generates thrust to the first connecting block after being blocked by the staple, so that the first connecting block is pushed to turn over towards the mounting groove, the blade enters the mounting groove, the distance between the two groups of crushing rollers is increased, the staple falls from the crushing rollers, and the damage of the blade caused by the fact that the staple clamps the crushing rollers is avoided; the paper can be directly placed into the paper shredder for shredding through the rotation of the blade, staples in the paper do not need to be taken out in advance, the operation of shredding the paper is simplified, and the shredding efficiency of the paper is improved.

A first movable groove 23 is formed in the inner wall of the mounting groove 21, a second movable groove is formed in the bottom of the first movable groove 23, the diameters of the first movable groove and the second movable groove are the same, first movable grooves are formed in the inner walls of the two sides of the mounting groove, a first connecting shaft 222 matched with the first movable groove 23 is arranged on the first connecting block 22, and a fixing component matched with the first connecting shaft 222 is arranged in the second movable groove; the detachable connection of the first connecting block and the mounting groove is realized under the mutual matching of the movable groove and the first connecting shaft, so that the blade can be conveniently detached from the crushing roller to maintain the blade; when packing into the mounting groove with first linkage block in, insert first connecting axle in the first activity inslot, make first connecting axle move to second activity tank bottom along second activity groove, to first connecting axle fixed action under fixed subassembly's effect, fix first connecting axle at second activity inslot to fix first linkage block in the mounting groove, be convenient for play crushing effect to the paper through the blade.

The fixing component comprises a fixing spring 241 arranged on the inner wall of the second movable groove and fixing blocks 24 arranged on the fixing spring 241, and the adjacent fixing blocks 24 are connected through a first connecting rod 242; before the first connecting shaft is arranged in the movable groove, the fixed block is pushed along the second movable groove under the action of the first connecting rod, so that the fixed block moves to one end of the second movable groove, and the first connecting shaft is conveniently arranged in the second movable groove; under fixed spring's effect, promote first connecting axle and move to second activity groove both ends, play the fixed action to first connecting axle, prevent that first connecting axle from deviating from the second activity inslot, promote the linkage effect of first connecting block and mounting groove, avoid the blade to make the connecting block fall out from the mounting groove when contacting with the paper, promote the cutting effect of blade to the paper.

A first connecting plate 251 is detachably connected to the first connecting block 22, a first movable plate 25 is movably connected to the first connecting plate 251, a second movable plate 26 is movably connected to one end of the first movable plate 25, a supporting spring 261 matched with the first connecting block 22 is arranged on the second movable plate 26, and the second movable plate 26 is movably connected to the inner wall of the mounting groove 21 through a second connecting shaft; under the mutual cooperation of the first movable plate and the second movable plate, the first connecting block is supported, and the first connecting block is prevented from being turned over when the blade is in contact with the paper sheets; when the blade is in contact with the staple, the blade cannot cut off the staple, the blade is pushed to drive the first connecting block to turn over under the action of the staple, the first connecting block pushes the first movable plate and the second movable plate to rotate around the connecting point, the distance between the crushing rollers is increased after the blade is rotated into the mounting groove, the staple falls from the crushing rollers, and the damage of the staple to the blade is avoided; under the effect of supporting spring, play the supporting role to first connecting block, promote the supporting effect of first movable plate and second movable plate, the emergence upset that can not be easy when making the blade lie in the paper contact.

A torsion spring is arranged on the second connecting shaft, and a limiting rod 27 matched with the second movable plate 26 is arranged in the mounting groove 21; a first limiting block 252 is arranged on the first connecting plate 25, and a limiting sliding groove matched with the first limiting block 252 is arranged on the first connecting block 22; under the action of the torsion spring, the second movable plate can automatically reset after driving the second connecting shaft to rotate, so that the blade extends out of the mounting groove after the staple falls, and the cutting effect on paper is facilitated; the second movable plate is limited under the action of the limiting rod, so that the second movable plate can only rotate towards one direction, the first connecting block can only rotate towards one direction, the blade is perpendicular to the bottom of the mounting groove in a normal state, and the cutting effect on paper is improved; when the first connecting block is installed in the installation groove, the first movable plate and the second movable plate are pulled to enable the first movable plate and the second movable plate to be in a linear state, the first limiting block is pushed into the limiting sliding groove to enable the first movable plate and the first connecting block to form connecting fit, and then the first connecting shaft is installed in the second movable groove to complete installation of the first connecting block; the first connecting block can be conveniently detached to maintain or replace the blade on the first connecting block, and the maintenance difficulty of the paper shredder is reduced.

A third connecting shaft 28 is arranged at two ends of the crushing roller 2, a third movable groove matched with the third connecting shaft 28 is arranged on the inner wall of the box body 1, a transmission cavity 16 is arranged at one side of the third movable groove, and a driving motor 121 for driving the crushing roller 2 to rotate is arranged in the transmission cavity 16 in a penetrating manner; after the crushing rollers are arranged in the box body, the third connecting shaft is arranged in the third movable groove, and under the action of the driving motor, the third connecting shaft provides rotary power for the crushing rollers, so that the two groups of crushing rollers rotate relatively to crush the paper; under the mutual cooperation of the third movable groove and the third connecting shaft, the crushing roller can be conveniently taken out of the third movable groove, so that the blades on the crushing roller can be conveniently maintained, and the maintenance cost of the paper shredder is reduced.

A handle 32 is movably connected to the cover plate 3, and a supporting block 11 matched with the handle 32 is arranged on the side wall of the box body 1; the bottom of the cover plate 3 is provided with a fixed rod 34 matched with the third movable groove; after the third connecting shaft is arranged in the third movable groove, the cover plate is covered on the box body, the fixed rod is inserted into the third movable groove, the third connecting shaft is fixed at the bottom of the third movable groove under the action of the fixed rod, the third connecting shaft is prevented from moving in the third movable groove, the stable rotation of the crushing roller is ensured, and the crushing effect of the crushing roller on paper is improved; the paper shredder can be conveniently lifted under the action of the lifting handle, the paper shredder is transported, the paper shredder is conveniently transported to a required office table to work, and the use convenience of the paper shredder is improved.

A second connecting block 33 is arranged on the cover plate 3, a first groove is arranged on the second connecting block 33, a third connecting block 13 is arranged on the side wall of the box body 1, and a ring buckle 15 matched with the first groove is movably connected to the third connecting block 13; after the apron lid was on the box, the latch closure was rotated, made the latch closure rotate to cooperate with first recess, under the mutually supporting of latch closure and first recess, played the fixed action to the apron, fixed the apron on the box to play the supporting role to the dead lever, make the third connecting axle fixed in the third activity inslot under the effect of dead lever, promote the connection effect of crushing roller and box.

A first movable cavity 131 is arranged in the third connecting block 13, a fourth connecting block 14 is arranged in the first movable cavity 131, and the fourth connecting block 14 can move along the inner wall of the first movable cavity 131; a fourth connecting shaft 151 is arranged at the bottom of the ring buckle 15, the fourth connecting shaft 151 penetrates through the fourth connecting block 14, and a limiting spring 141 is arranged at the top of the fourth connecting block 14; when the ring buckle is rotated to enable the ring buckle to be matched with the first groove, the ring buckle is pulled to move upwards, the fourth connecting block is moved to the top of the first movable cavity, the ring buckle is higher than the second connecting block, and the ring buckle is convenient to be matched with the first groove; after the latch closure rotates to first recess top, the fourth connecting block down moved under spacing spring's effect, makes the latch closure imbed in the first recess to make latch closure and first recess form the cooperation each other, play the fixed action to the apron, avoid the crushing roller directly to expose and cause accident outward, promote the fixed effect to the crushing roller.

The side wall of the box body 1 is provided with an installation box 12, the driving motor 121 is detachably arranged in the installation box 12, an output shaft of the driving motor 121 penetrates through the transmission cavity 16, a first transmission wheel 161 is arranged on the output shaft of the driving motor 121, and a second transmission wheel 162 matched with the first transmission wheel 161 is arranged in the transmission cavity 16; the third connecting shaft is matched with the second driving wheel after being arranged in the third movable groove, and the driving motor drives the first driving wheel to rotate to drive the second driving wheel to rotate, so that the crushing roller is driven to rotate under the action of the first driving wheel and the second driving wheel, the rotation power is provided for the crushing roller, and the paper shredder can conveniently shred paper.

A baffle plate 41 is arranged at the top in the waste paper box 4, a third movable plate 42 is movably connected to the baffle plate 41, a fifth connecting shaft is arranged on the side wall of the third movable plate, the third movable plate is connected to the baffle plate through the fifth connecting shaft, a second movable cavity 43 is arranged on the waste paper box 4, a movable block 44 is arranged in the second movable cavity 43, and the third movable plate 42 can be pushed to rotate around the connecting point when the movable block 44 moves downwards; when the paper needs to be taken out from the box body to be cleaned after the paper is broken, the movable block is pushed along the inner wall of the second movable cavity, the movable block is moved to the bottom of the second movable cavity, the third movable plate rotates around the connecting point along with the movement of the movable block, the paper in the paper waste box is extruded under the action of the third movable plate, paper scraps are prevented from falling from the paper waste box when the paper waste box is taken out, and the paper scraps are convenient to clean; the baffle is mutually supported with the third fly leaf, plays the effect of blockking to the wastepaper bits at waste paper box top, prevents that the third fly leaf from making the wastepaper bits fall out from the waste paper box when extrudeing the wastepaper bits.

A fifth connecting block 47 is arranged on the inner wall of the waste paper box 4, a third movable cavity 471 is arranged in the fifth connecting block 47 and is obliquely arranged, a push rod 48 matched with the third movable plate 42 penetrates through the third movable cavity 471, a hydraulic cavity 45 is arranged on the side wall of the waste paper box 4, hydraulic oil is filled in the hydraulic cavity, and the hydraulic cavity 45 is communicated with the third movable cavity 471 through a liquid conveying cavity 46; when the movable block down moved along the second activity intracavity wall, change the pressure in the hydraulic pressure intracavity under the effect of movable block, make the hydraulic oil in the hydraulic pressure intracavity enter into the third activity intracavity through the transfusion chamber, push the push rod and move along the third activity intracavity wall under the effect of hydraulic oil, thereby make the push rod stretch out from the third activity intracavity, make the push rod contact with the third fly leaf, be convenient for promote the third fly leaf to rotate under the effect of push rod, make the third fly leaf rotate and play the squeezing action to horizontal position to the wastepaper, prevent that the wastepaper from falling in the wastepaper box.

The bottom of the push rod 48 is provided with a first limit plate 481 matched with the third movable cavity 471, the bottom of the first limit plate 481 is provided with a buffer spring 482, and the infusion cavity 46 is communicated with the bottom of the third movable cavity 471; the first limiting plate is matched with the third movable cavity, so that the push rod is prevented from falling out of the third movable cavity, and the matching effect of the push rod and the third movable cavity is improved; under the action of the buffer spring, a certain gap exists between the push rod and the bottom of the third movable cavity, so that the third movable cavity is prevented from being blocked by the push rod, and hydraulic oil cannot enter the third movable cavity; when the movable block moves to the top of the second movable cavity, the push rod is slowly descended along the third movable cavity under the action of the buffer spring and the hydraulic oil, so that the collision between the push rod and the bottom of the third movable cavity is avoided, and the third movable cavity and the push rod are protected; the transfusion cavity is communicated with the bottom of the third movable cavity, so that hydraulic oil can be directly input to the bottom of the push rod, the push rod moves along the inner wall of the third movable cavity under the action of the hydraulic oil, and the third movable plate is pushed to extrude scraps of paper.

A fourth movable groove 431 is formed in the side wall of the second movable cavity 43, a push block 441 is arranged on the movable block 44, the push block 441 is arranged in the fourth movable groove 431 in a penetrating manner, the hydraulic cavity 45 is arranged below the second movable cavity 43, a second connecting rod 442 is arranged at the bottom of the movable block 44, the second connecting rod 442 is arranged in the hydraulic cavity 45 in a penetrating manner, a push plate 444 is arranged at the bottom of the second connecting rod 442, the push plate corresponds to the hydraulic cavity, a return spring 443 is sleeved on the second connecting rod, and the movable block can be quickly reset after being pressed down under the action of the return spring; the push block is arranged to facilitate the push of the movable block to move along the second movable cavity, and after the push of the movable block moves, the waste paper box can be conveniently pulled out of the box body under the action of the push block, so that paper scraps in the waste paper box can be conveniently cleaned; after the movable block moved to second activity chamber bottom, the movable block promoted the second connecting rod and down moved, made the hydraulic oil of push pedal extrusion hydraulic pressure intracavity, extruded hydraulic oil to the infusion intracavity under the effect of push pedal, made hydraulic oil enter into the third activity intracavity and promote the third fly leaf and rotate, with the wastepaper bits compaction in the wastepaper box, prevented that the wastepaper box from dropping from the wastepaper box when taking out.

A second limiting block 411 matched with the third movable plate 42 is arranged on the inner wall of the baffle plate 41; a fifth movable groove 413 is formed in the baffle 41, a first connecting spring 414 is arranged in the fifth movable groove 413, a third limiting block 412 is arranged at the top of the first connecting spring 414, and the top of the third limiting block 412 is of an arc-shaped structure; under the action of the second limiting block and the third limiting block, the third movable plate is limited, and when the waste paper box is arranged in the box body, the third movable plate is in an inclined state, so that paper scraps can conveniently fall into the waste paper box and can be collected; when the push rod pushes the third movable plate to rotate, the third movable plate and the third limiting block are extruded under the action of the push rod, and the third movable plate pushes the third limiting block into the fifth movable groove under the action of the arc structure at the top of the third limiting block, so that the third movable plate is continuously turned over, paper scraps in the waste paper box are compacted, and the paper scraps in the waste paper box are prevented from falling out; the third movable plate is fixed at the designated position under the matching of the second limiting block and the third limiting block, so that the influence of the third movable plate on the collection work of the waste paper box is avoided.

A transmission groove is formed in the first transmission wheel 161, an output shaft of the driving motor 121 penetrates through the transmission groove, and a first arc-shaped elastic sheet 124 is arranged on the inner wall of the installation box 12 and made of a metal plate-shaped material; under the mutual matching of the transmission groove and the output shaft of the driving motor, the driving motor can also form matching with the first transmission wheel after being disassembled and assembled so as to provide rotary power for the crushing roller; first arc shell fragment plays fixed action to driving motor, fixes driving motor at the install bin middle part position, increases the cooperation effect of driving motor and first drive wheel, avoids driving motor to take place the shake at the during operation.

The driving motor 121 is provided with sixth movable slots 1211, two groups of the sixth movable slots are symmetrically arranged on the driving motor, a bump 1212 penetrates through the sixth movable slot 1211, a second connecting spring 1214 matched with the bump 1212 is arranged in the sixth movable slot 1211, and a second groove 123 matched with the bump 1212 is arranged at the top of the installation box 12; the bottom of the second groove is provided with a metal guide sheet for conducting current in the paper shredder; when installing driving motor into the install bin, make the lug aim at the second recess, make second connecting spring be in compression state under the effect of second recess, ensure the contact effect of lug and second recess, under the contact of lug and second recess, for driving motor provides the power and connects, make driving motor can normally work after the install bin of packing into.

A second limiting plate 1213 is arranged at the bottom of the bump 1212, a second arc-shaped elastic piece 1215 matched with the bump 1212 is arranged at the bottom of the sixth movable groove 1211, the second arc-shaped elastic piece is made of a metal plate-shaped material, and the two groups of second arc-shaped elastic pieces are respectively connected with the input end and the output end of the driving motor; after the driving motor is arranged in the mounting box, the lug enters the sixth movable groove under the action of the second groove, and the lug is contacted with the second arc-shaped elastic sheet, so that a power supply is connected with the driving motor to supply power to the driving motor; under the effect of second limiting plate, play limiting displacement to the lug, prevent that the lug from deviating from the sixth activity inslot, promote the contact effect of lug and second arc shell fragment.

A box cover 122 is movably connected to the installation box 12, and a lock catch matched with the installation box 12 is arranged on the box cover 122; a through hole is formed in the side wall of the installation box 12; after the driving motor is arranged in the installation box, the rotating box cover has a sealing effect on the installation box under the effect of the box cover, so that the driving motor is supported, and the driving motor is prevented from falling out of the installation box; the box cover is fixed on the installation box through the lock catch, so that the connection effect of the box cover and the installation box is ensured, and a reliable supporting effect is provided for the driving motor; make the air can circulate in the install bin through the through-hole, the driving motor's of being convenient for heat dissipation prevents that driving motor from generating heat after lasting work and influencing motor life.

After the waste paper box is taken out of the box body, the third movable plate is pushed to rotate, the third movable plate is pushed to the position of the second limiting block, and the push rod is pushed into the first and third movable cavities under the rotation of the second movable plate, so that the hydraulic oil in the third movable cavity reenters the hydraulic cavity through the infusion cavity; the third movable plate is in an inclined state under the action of the second limiting block and the third limiting block, so that paper scraps in the waste paper box can be poured out conveniently.

Claims

1. The utility model provides a kneader convenient to maintain, includes box (1), locates crushing roller (2) in box (1) and locating apron (3) at box (1) top, crushing roller (2) are two sets of, are the symmetry and locate on box (1) inner wall, be equipped with feed inlet (31) on apron (3), apron (3) can dismantle connect in on box (1), wear to be equipped with waste paper box (4) in box (1), waste paper box (4) are located crushing roller (2) below, its characterized in that: a third connecting shaft (28) is arranged on the side wall of the crushing roller (2), a third movable groove matched with the third connecting shaft (28) is arranged on the inner wall of the box body (1), an installation box (12) is arranged on the side wall of the box body (1), a driving motor (121) is detachably connected in the installation box (12), a transmission cavity (16) is arranged on the inner wall of the box body (1), and an output shaft of the driving motor (121) penetrates through the transmission cavity (16); a sixth movable groove (1211) is formed in the driving motor (121), a bump (1212) penetrates through the sixth movable groove (1211), a second connecting spring (1214) matched with the bump (1212) is arranged in the sixth movable groove (1211), and a second groove (123) matched with the bump (1212) is formed in the top of the installation box (12); a second limiting plate (1213) is arranged at the bottom of the bump (1212), and a second arc-shaped elastic sheet (1215) matched with the bump (1212) is arranged at the bottom of the sixth movable groove (1211); the crushing roller (2) is provided with a mounting groove (21), a plurality of first connecting blocks (22) are arranged in the mounting groove (21), blades (221) are arranged on the first connecting blocks (22), and the first connecting blocks (22) can rotate to the inside of the mounting groove (21) around the connecting points with the mounting groove (21); be equipped with first activity groove (23) on mounting groove (21) both sides inner wall, first activity groove (23) bottom is equipped with the second activity groove, be equipped with on first connecting block (22) and follow first activity groove (23) move first connecting axle (222) to second activity tank bottom portion, the second activity inslot be equipped with first connecting axle (222) are fixed at the fixed subassembly of second activity inslot.

2. A paper shredder convenient for maintenance according to claim 1, characterized in that: the transmission mechanism is characterized in that a first transmission wheel (161) and a second transmission wheel (162) are arranged in the transmission cavity (16), a transmission groove is formed in the first transmission wheel (161), an output shaft of the driving motor (121) penetrates through the transmission groove, and a first arc-shaped elastic sheet (124) is arranged on the inner wall of the installation box (12).

3. A paper shredder convenient for maintenance according to claim 1, characterized in that: a box cover (122) is movably connected to the installation box (12), and a lock catch matched with the installation box (12) is arranged on the box cover (122); the side wall of the installation box (12) is provided with a through hole.