CN112024080A

CN112024080A - Waste paper breaker for environmental protection

Info

Publication number: CN112024080A
Application number: CN202010893451.8A
Authority: CN
Inventors: 颜海艇
Original assignee: Suzhou Hebiersi Electronic Technology Co ltd
Current assignee: Suzhou Hebiersi Electronic Technology Co ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2020-12-04

Abstract

The invention discloses an environment-friendly waste paper crushing device which comprises a box body, wherein a feed inlet is formed in the upper portion of the box body, a crushing box is arranged in the upper portion of the inner portion of the box body and is communicated with the inner portion of the feed inlet, the lower portion of the crushing box is funnel-shaped, a chopping box is arranged below the crushing box, a fixed bottom plate is arranged below the chopping box, a collecting box is arranged below the fixed bottom plate and is fixedly connected with the box body, a first fixing plate is arranged on the right side of the lower portion of the inner portion of the box body, and a rotating motor is arranged on the right side of the first. When the device is operated, the waste paper is poured from the feeding hole, the waste paper entering the crushing box is crushed, and after the waste paper is crushed, the waste paper enters the shredding box under the action of gravity, is not completely crushed and then enters the collecting box, and is fully crushed through a plurality of processes, so that the problem of incomplete waste paper treatment in a single process is avoided, the practicability of the device is improved, and the device is suitable for being popularized in a large scale.

Description

Waste paper breaker for environmental protection

Technical Field

The invention relates to the technical field of environmental protection, in particular to an environment-friendly waste paper crushing device.

Background

Environmental protection, which is called environmental protection in its entirety, refers to the collective name of various actions that human beings take to solve real or potential environmental problems, coordinate the relationship between human beings and the environment, and guarantee the sustainable development of the economic society. Environmental protection is a general term for all human activities that utilize the theory and method of environmental science to coordinate the relationship between human beings and the environment, solve various problems, and protect and improve the environment. The method comprises the steps of taking various measures of administration, law, economy and science and technology, reasonably utilizing natural resources, preventing the pollution and the damage of the environment, maintaining and developing ecological balance, expanding the reproduction of useful natural resources and ensuring the development of human society. The environmental protection is wide in range and strong in comprehensiveness, and relates to a plurality of fields of natural science and social science and unique research objects thereof.

Waste paper refers to recyclable and renewable resources which are discarded after being used in production and life, and comprises various high-grade paper, yellow board paper, waste paper boxes, edge cutting paper, packing paper, paper for enterprises and units, paper for engineering, books and periodicals, and the like. Internationally, waste paper is generally classified into European waste, American waste and daily waste. In China, the recycling degree of the waste paper is lower compared with that of the developed countries in the west.

The recycling of waste paper can save resources and protect the environment, the environmental awareness of the modern society is strong, and everyone needs to have strong environmental awareness to protect the environment on which the people live.

The existing waste paper crushing device for environmental protection has the defects of incomplete crushing, low environmental protection degree and weak practicability, so that the waste paper crushing device for environmental protection is required to be fully crushed and avoid incomplete waste paper treatment.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides an environment-friendly used paper crushing device.

In order to achieve the purpose, the invention adopts the following technical scheme:

an environment-friendly waste paper crushing device comprises a box body, wherein a feed inlet is arranged above the box body, a crushing box is arranged above the interior of the box body, the crushing box is communicated with the interior of the feed inlet, the lower part of the crushing box is funnel-shaped, a chopping box is arranged below the crushing box, a fixing bottom plate is arranged below the chopping box, a collecting box is arranged below the fixing bottom plate and fixedly connected with the box body, a first fixing plate is arranged on the right side below the interior of the box body, a rotating motor is arranged on the right side of the first fixing plate, a rotating shaft is arranged at the output end of the rotating motor, a driving helical gear is arranged at one end of the rotating shaft, which is far away from the rotating motor, a driven helical gear is arranged on the left side of the driving helical gear, a crushing shaft is arranged at the center of the, the crushing shaft is provided with a plurality of crushing blades.

As a still further scheme of the invention: the middle part of axis of rotation is provided with the driving gear, the left side of driving gear is provided with driven gear, driven gear's top is provided with the rotation post, the one end that driven gear was kept away from to the rotation post is provided with the head rod, the one end that the rotation post was kept away from to the head rod is provided with the dwang, the one end that the head rod was kept away from to the dwang is provided with the fixed station, fixed station and box fixed connection, the one end that the fixed station was kept away from to the dwang is provided with the second connecting rod, the one end that the dwang was kept away from to the second connecting rod is provided with the catch bar, the left side of catch bar is provided with the chopping board, the left side of chopping board is provided with a plurality of chopping blade, the left side of chopping blade is.

As a still further scheme of the invention: the crushing device comprises a box body, a rotating shaft, a first bearing seat, a crushing shaft, a second bearing seat and a crushing shaft, wherein the rotating shaft is rotatably connected with the box body through the first bearing seat, the first bearing seat is fixedly connected with the box body, the crushing shaft is rotatably connected with the box body through the second bearing seat, and the second bearing seat is fixedly connected with the box body.

As a still further scheme of the invention: driven gear's below is provided with the second fixed plate, the second fixed plate is the L type, driven gear's one end and box fixed connection are kept away from to the second fixed plate, be provided with the third fixed plate on the catch bar, the catch bar runs through the third fixed plate, the third fixed plate is the L type, the one end and the box fixed connection of catch bar are kept away from to the third fixed plate, the inside left side of shredding box is provided with a plurality of sword groove.

As a still further scheme of the invention: the novel multifunctional refrigerator is characterized in that a drawing plate is arranged inside the fixing base plate, a connecting plate is arranged on the left side of the drawing plate, a sliding table is arranged on one side, away from the drawing plate, of the connecting plate, a lead screw is arranged inside the sliding table, a fourth fixing plate is arranged on the right side of the lead screw, the fourth fixing plate is fixedly connected with the refrigerator body, the lead screw penetrates through the left side of the refrigerator body, and a handle is arranged at one end, away from the fourth fixing plate, of the lead screw.

As a still further scheme of the invention: a cover plate is arranged above the feeding hole, and a vibrator is arranged on the right side of the outside of the collecting box.

As a still further scheme of the invention: and a traveling mechanism is arranged below the box body.

As a still further scheme of the invention: the walking mechanism comprises rolling wheels and a braking plate, the rolling wheels are arranged at four corners below the box body, and the braking plate is arranged on the rolling wheels.

The invention has the beneficial effects that:

1. through arranging the crushing box, the chopping box, the rotating motor, the rotating shaft, the driving bevel gear, the driven bevel gear, the crushing shaft and the crushing blade, when the device runs, waste paper is poured from the feed inlet, the rotating motor is started, the driving bevel gear is driven to rotate by the rotating shaft, so that the driving bevel gear drives the driven bevel gear to rotate, the crushing shaft drives the crushing blade to rotate, the waste paper entering the crushing box is crushed, after the waste paper is crushed, the waste paper enters the chopping box by utilizing the action of gravity, the waste paper which is not completely crushed is crushed and then enters the collecting box, and the waste paper is fully crushed through a plurality of processes, so that the problem that the waste paper is not completely treated in a single process is solved, the practicability of the waste paper is increased, and the device is suitable for mass;

2. by arranging the driving gear, the driven gear, the rotating column, the first connecting rod, the rotating rod, the second connecting rod, the pushing rod, the shredding plate, the shredding blade and the shredding cutter head, when the rotating motor is started, the rotating shaft drives the driving gear to rotate, so that the driven gear drives the rotating column to rotate, the first connecting rod drives the rotating rod to do swinging motion, the second connecting rod does left-right reciprocating motion, the pushing rod drives the shredding plate to do left-right motion, the shredding blade is used for shredding waste paper, multiple treatment of the waste paper is completed, only a single power source of the rotating motor is used, energy is saved, and the waste paper shredding machine is suitable for being popularized in a large scale;

3. by arranging the first bearing seat and the second bearing seat and utilizing the first bearing seat and the second bearing seat, the device is more stable in the operation process, the practical service life of the device is prolonged, and the applicability of the device is improved;

4. by arranging the second fixing plate, the third fixing plate and the cutter groove, the rotation process of the driven gear is more stable by using the second fixing plate, the left and right movement of the push rod is more stable by using the third fixing plate, the cutter groove is used for protecting the cutter head, the cutter head and the cutter box are prevented from colliding and being damaged, and the practicability of the cutter head is improved;

5. through the arrangement of the handle, the screw rod, the sliding block, the connecting plate and the pulling plate, after the waste paper is treated, the handle is rotated, so that the screw rod drives the sliding block to move leftwards, the connecting plate drives the pulling plate to move leftwards, and the cut waste paper enters the collecting box through the fixed bottom plate, so that the waste paper is crushed and collected, and the practicability of the waste paper is improved;

6. the cover plate and the vibrator are arranged, the cover plate is used for sealing the device, the device is not influenced by the outside in the operation process or the storage process, the vibrator is used for vibrating the collecting box, waste paper is prevented from being adsorbed on the inner wall of the collecting box, and the applicability of the device is improved;

7. through setting up running gear, utilize the wheel that rolls to make the device can freely remove, make things convenient for returning the storehouse and using of device, utilize the braking board to make the device keep stable when removing the assigned position, make it can not remove when moving, guarantee its purifying effect, increase its suitability.

Drawings

FIG. 1 is a front view schematically showing the construction of a used paper shredder for environmental protection proposed in embodiment 1;

FIG. 2 is a schematic rear view of a first connecting rod of the used paper shredder for environmental protection in accordance with embodiment 1;

FIG. 3 is a front view schematically showing the structure of a cover plate of the used paper shredder for environmental protection in accordance with embodiment 1;

FIG. 4 is a schematic view showing a screw of the used paper shredder for environmental protection in accordance with embodiment 1;

fig. 5 is a front view schematically showing the construction of a used paper shredder for environmental protection proposed in embodiment 2.

In the figure: 1-feeding hole, 2-box body, 3-first fixed plate, 4-rotating motor, 5-rotating shaft, 6-second fixed plate, 7-driving gear, 8-driven gear, 9-rotating column, 10-first connecting rod, 11-third fixed plate, 12-driving helical gear, 13-bearing seat, 14-driven helical gear, 15-crushing shaft, 16-crushing box, 17-crushing blade, 18-fixed platform, 19-rotating rod, 20-second connecting rod, 21-pushing rod, 22-crushing plate, 23-crushing blade, 24-crushing blade head, 25-crushing box, 26-knife slot, 27-fixed bottom plate, 28-pulling plate, 29-connecting plate, 30-sliding platform, 31-screw rod, 32-handle, 33-fourth fixing plate, 34-collecting box, 35-vibrator, 36-rolling wheel, 37-braking plate, 38-second bearing seat and 39-cover plate.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Example 1

Referring to fig. 1 to 4, an environment-friendly waste paper crushing device comprises a box body 2, a feed inlet 1 is bolted on the upper portion of the box body 2, a crushing box 16 is bolted on the upper portion inside the box body 2, the crushing box 16 is communicated with the feed inlet 1, the lower portion of the crushing box 16 is funnel-shaped, a chopping box 25 is bolted on the lower portion of the crushing box 16, a fixing bottom plate 27 is bolted on the lower portion of the chopping box 25, a collecting box 34 is bolted on the lower portion of the fixing bottom plate 27, the collecting box 34 is bolted with the box body 2, a first fixing plate 3 is bolted on the lower right side inside the box body 2, a rotating motor 4 is bolted on the right side of the first fixing plate 3, a rotating shaft 5 is connected with an output end shaft of the rotating motor 4, a driving helical gear 12 is fixed on an end shaft of the rotating shaft 5 far away from the rotating, the center pin of driven helical gear 14 is fixed with crushing axle 15, crushing axle 15 runs through crushing case 16, bolted connection has a plurality of crushing blade 17 on crushing axle 15, when the device moves, pour into waste paper from feed inlet 1, start rotating motor 4, utilize axis of rotation 5 to drive initiative helical gear 12 and rotate, thereby make initiative helical gear 12 drive driven helical gear 14 and rotate, make crushing axle 15 drive crushing blade 17 and rotate, carry out shredding to the waste paper that gets into crushing case 16, after carrying out shredding to waste paper, utilize the action of gravity, make waste paper get into shredding case 25, carry out shredding to the waste paper that does not completely smash, reentrant collecting box 24, through multichannel process, carry out the abundant crushing to waste paper, avoided single process to waste paper treatment incomplete problem, increase its practicality, and is suitable for a large amount of popularization.

Wherein, the middle shaft of the rotating shaft 5 is fixed with a driving gear 7, the left side of the driving gear 7 is engaged with a driven gear 8, the upper part of the driven gear 8 is bolted with a rotating column 9, one end of the rotating column 9 far from the driven gear 8 is rotationally connected with a first connecting rod 10, one end of the first connecting rod 10 far from the rotating column 9 is rotationally connected with a rotating rod 19, one end of the rotating rod 19 far from the first connecting rod 10 is rotationally connected with a fixed platform 18, the fixed platform 18 is bolted with the box body 2, one end of the rotating rod 19 far from the fixed platform 18 is rotationally connected with a second connecting rod 20, one end of the second connecting rod 20 far from the rotating rod 19 is rotationally connected with a push rod 21, the left side of the push rod 21 is bolted with a chopping board 22, the left side of the chopping board 22 is bolted with a plurality of chopping blades 23, the left side of the chopping blades 23 is bolted, when the rotating motor 4 is started, the rotating shaft 5 drives the driving gear 7 to rotate, so that the driven gear 8 drives the rotating column 9 to rotate, the first connecting rod 10 drives the rotating rod 19 to perform swinging motion, the second connecting rod 20 performs left-right reciprocating motion, the pushing rod 21 drives the shredding plate 22 to perform left-right motion, the shredding of waste paper by the shredding blade 23 is realized, multiple treatment of the waste paper is completed, only a single power source of the rotating motor 4 is utilized, the energy is saved, and the rotating motor is suitable for large-scale popularization.

Wherein, axis of rotation 5 and box 2 rotate through first bearing frame 13 and connect, and first bearing frame 13 and box 2 fixed connection smash axle 15 and box 2 and rotate through second bearing frame 38 and connect, and second bearing frame 38 and box 2 fixed connection utilize first bearing frame 13 and second bearing frame 38, make the device operation in-process, and is more stable, the practical life of extension device increases its suitability.

Wherein, driven gear 8's below bolted connection has second fixed plate 6, second fixed plate 6 is the L type, driven gear 8's one end and 2 bolted connection of box are kept away from to second fixed plate 6, sliding connection has third fixed plate 11 on catch bar 21, catch bar 21 runs through third fixed plate 11, third fixed plate 11 is the L type, catch bar 21's one end and 2 bolted connection of box are kept away from to third fixed plate 11, a plurality of sword groove 26 has been seted up on the inside left side of shredding box 25, it is more stable to utilize second fixed plate 6 to make driven gear 8 rotation process, it is more stable when utilizing third fixed plate 11 to make catch bar 21 do the side-to-side motion, utilize sword groove 26 to carry out the guard action to shredding head 24, prevent shredding head 24 and shredding box 25 from colliding, cause the damage, increase its practicality.

Wherein, PMKD 27's inside sliding connection has pull board 28, pull board 28's left side bolted connection has connecting plate 29, one side bolted connection that pull board 28 was kept away from to connecting plate 29 has sliding stand 30, sliding stand 30's inside threaded connection has lead screw 31, lead screw 31's right side bearing is connected with fourth fixed plate 33, fourth fixed plate 33 and box 2 bolted connection, lead screw 31 runs through the left side of box 2, the one end bolted connection that fourth fixed plate 33 was kept away from to lead screw 31 has handle 32, when handling the completion back to waste paper, rotate handle 32, make lead screw 31 drive sliding block 30 move left, thereby make connecting plate 29 drive pull board 28 move left, make the waste paper after cutting up pass through PMKD 27 and get into collecting box 34, thereby accomplish the breakage and the collection to waste paper, increase its practicality.

Wherein, the top hinged joint of feed inlet 1 has apron 39, and the outside right side bolted connection of collecting box 34 has electromagnetic shaker 35, utilizes apron 39 to seal the device, does not receive external influence at the operation in-process or deposit the in-process, utilizes electromagnetic shaker 35 to vibrate collecting box 34, prevents that waste paper from adsorbing on collecting box 34 inner wall, increases its suitability.

The working principle is as follows: when the device is operated, waste paper is poured from the feeding hole 1, the rotating motor 4 is started, the rotating shaft 5 is utilized to drive the driving bevel gear 12 to rotate, so that the driving bevel gear 12 drives the driven bevel gear 14 to rotate, the crushing shaft 15 drives the crushing blade 17 to rotate, the waste paper entering the crushing box 16 is crushed, after the waste paper is crushed, the waste paper enters the chopping box 25 under the action of gravity, the incompletely crushed waste paper is chopped, and then enters the collecting box 24, and the waste paper is fully crushed through a plurality of processes, so that the problem that the waste paper is not completely treated through a single process is solved, the practicability of the waste paper is improved, and the waste paper crushing device is suitable for large-scale popularization; when the rotating motor 4 is started, the rotating shaft 5 drives the driving gear 7 to rotate, so that the driven gear 8 drives the rotating column 9 to rotate, the first connecting rod 10 drives the rotating rod 19 to perform swinging motion, the second connecting rod 20 performs left-right reciprocating motion, and the pushing rod 21 drives the shredding plate 22 to perform left-right motion, so that the waste paper is shredded by the shredding blade 23, multiple treatment of the waste paper is completed, and only a single power source of the rotating motor 4 is utilized, so that the energy is saved, and the waste paper shredding device is suitable for large-scale popularization; the first bearing seat 13 and the second bearing seat 38 are utilized, so that the device is more stable in the operation process, the practical service life of the device is prolonged, and the applicability of the device is improved; the rotation process of the driven gear 8 is more stable by using the second fixing plate 6, the left and right movement of the push rod 21 is more stable by using the third fixing plate 11, the cutter groove 26 is used for protecting the cutter head 24, the cutter head 24 and the cutter box 25 are prevented from colliding to cause damage, and the practicability of the cutter head is improved; after the waste paper is processed, the handle 32 is rotated, the screw rod 31 drives the sliding block 30 to move leftwards, so that the connecting plate 29 drives the pull plate 28 to move leftwards, the shredded waste paper enters the collecting box 34 through the fixed bottom plate 27, the waste paper is crushed and collected, and the practicability of the waste paper is improved; utilize apron 39 to seal the device, do not receive external influence in operation process or the process of depositing, utilize electromagnetic shaker 35 to shake collecting box 34, prevent that waste paper from adsorbing on collecting box 34 inner wall, increase its suitability.

Example 2

Referring to fig. 5, compared with embodiment 1, in this embodiment, a traveling mechanism is arranged below a box body 2, the traveling mechanism includes rolling wheels 36 and braking plates 37, the rolling wheels 36 are bolted to four corners of the lower portion of the box body 2, the braking plates 37 are bolted to the rolling wheels 36, the device can move freely by using the rolling wheels 36, the device is convenient to return to a warehouse and move, the device can be kept stable when moving a designated position by using the braking plates 37, the device cannot move when moving, the purification effect of the device is ensured, and the applicability of the device is improved.

The working principle is as follows: the device can move freely by using the rolling wheels 36, so that the device is convenient to return to a warehouse and move, and the device can be kept stable when moving a designated position by using the braking plate 37, so that the device cannot move during operation, the purification effect of the device is ensured, and the applicability of the device is improved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The environment-friendly waste paper crushing device comprises a box body (2) and is characterized in that a feed inlet (1) is arranged above the box body (2), a crushing box (16) is arranged above the inside of the box body (2), the crushing box (16) is communicated with the inside of the feed inlet (1), the lower part of the crushing box (16) is funnel-shaped, a chopping box (25) is arranged below the crushing box (16), a fixing bottom plate (27) is arranged below the chopping box (25), a collecting box (34) is arranged below the fixing bottom plate (27), the collecting box (34) is fixedly connected with the box body (2), a first fixing plate (3) is arranged on the right side of the inside below of the box body (2), a rotating motor (4) is arranged on the right side of the first fixing plate (3), and a rotating shaft (5) is arranged at the output end of the rotating motor (4), one end of the rotating shaft (5) far away from the rotating motor (4) is provided with a driving bevel gear (12), the left side of the driving bevel gear (12) is provided with a driven bevel gear (14), the center of the driven bevel gear (14) is provided with a crushing shaft (15), the crushing shaft (15) penetrates through a crushing box (16), and a plurality of crushing blades (17) are arranged on the crushing shaft (15).

2. The environment-friendly waste paper crushing device as claimed in claim 1, wherein a driving gear (7) is arranged in the middle of the rotating shaft (5), a driven gear (8) is arranged on the left side of the driving gear (7), a rotating column (9) is arranged above the driven gear (8), a first connecting rod (10) is arranged at one end, away from the driven gear (8), of the rotating column (9), a rotating rod (19) is arranged at one end, away from the rotating column (9), of the first connecting rod (10), a fixed table (18) is arranged at one end, away from the first connecting rod (10), of the rotating rod (19), the fixed table (18) is fixedly connected with the box body (2), a second connecting rod (20) is arranged at one end, away from the fixed table (18), of the second connecting rod (20) is provided with a pushing rod (21), the left side of catch bar (21) is provided with chopping board (22), the left side of chopping board (22) is provided with a plurality of shredding blade (23), the left side of shredding blade (23) is provided with shredding cutter head (24), shredding blade (23) run through the right side conch wall of shredding case (25).

3. An environmentally friendly waste paper shredder according to claim 2, wherein the rotating shaft (5) is rotatably connected to the case (2) via a first bearing housing (13), the first bearing housing (13) is fixedly connected to the case (2), the shredding shaft (15) is rotatably connected to the case (2) via a second bearing housing (38), and the second bearing housing (38) is fixedly connected to the case (2).

4. An environmentally friendly waste paper shredder according to claim 3, wherein a second fixing plate (6) is disposed below the driven gear (8), the second fixing plate (6) is L-shaped, one end of the second fixing plate (6) far away from the driven gear (8) is fixedly connected with the box body (2), a third fixing plate (11) is disposed on the push rod (21), the push rod (21) penetrates through the third fixing plate (11), the third fixing plate (11) is L-shaped, one end of the third fixing plate (11) far away from the push rod (21) is fixedly connected with the box body (2), and a plurality of knife grooves (26) are disposed on the left side of the inside of the shredding box (25).

5. The environment-friendly waste paper crushing device as claimed in claim 4, wherein a drawing plate (28) is arranged inside the fixed bottom plate (27), a connecting plate (29) is arranged on the left side of the drawing plate (28), a sliding table (30) is arranged on one side, away from the drawing plate (28), of the connecting plate (29), a lead screw (31) is arranged inside the sliding table (30), a fourth fixed plate (33) is arranged on the right side of the lead screw (31), the fourth fixed plate (33) is fixedly connected with the box body (2), the lead screw (31) penetrates through the left side of the box body (2), and a handle (32) is arranged at one end, away from the fourth fixed plate (33), of the lead screw (31).

6. An environmentally friendly used paper shredder according to claim 5, wherein a cover plate (39) is provided above the feed inlet (1), and a vibrator (35) is provided on the outside right side of the collecting box (34).

7. An environmentally friendly used paper shredder according to claim 6, wherein a traveling mechanism is provided below the case body (2).

8. An environmentally friendly used paper shredder according to claim 7, wherein the traveling mechanism comprises rolling wheels (36) and a braking plate (37), the rolling wheels (36) are arranged at four lower corners of the box body (2), and the braking plate (37) is arranged on the rolling wheels (36).