CN212712030U

CN212712030U - Cutting device for cleaning consumables

Info

Publication number: CN212712030U
Application number: CN202021330781.8U
Authority: CN
Inventors: 周昌义
Original assignee: Changhe Jingyan Beijing Technology Co ltd
Current assignee: Changhe Jingyan Beijing Technology Co ltd
Priority date: 2020-07-08
Filing date: 2020-07-08
Publication date: 2021-03-16
Anticipated expiration: 2030-07-08

Abstract

The utility model discloses a cutting device for cleaning consumables, which comprises a shell, a fixed knife and a movable knife component are respectively arranged in a containing cavity and positioned at two sides of a paper outlet, the movable knife component comprises a blade, a guiding protection piece and a limiting elastic sheet, a movable knife rest is fixed in the containing cavity, the limiting elastic sheet is pressed against the blade, the blade is provided with a driving hole, the guiding protection piece is made of wear-resistant rubber and comprises a protection substrate, a guiding convex part, a protection sleeve and an isolation part, a blade clamp is arranged between the protection substrate and the isolation part, the protection sleeve is inserted in the driving hole and connected with the protection substrate and the isolation part, the movable knife rest is provided with a guiding hole, the guiding convex part is inserted with the guiding hole, the containing cavity is provided with a motor, the output shaft end of the motor is provided with a scroll bar, the movable knife rest is rotatably provided with a turbine, the drive shaft is inserted in the protective sleeve. The utility model discloses a clean consumptive material cutting device simple structure, it is with low costs, long service life.

Description

Cutting device for cleaning consumables

Technical Field

The utility model relates to a clean consumptive material processing apparatus technical field especially relates to a clean consumptive material cutting device.

Background

At present, most public toilets and other areas are provided with tissue boxes, the tissue boxes are filled with roll paper, when the tissues are taken, a user needs to pull out the tissues with hands and tear the tissues, and the public toilets and other areas are troublesome to use and are unsanitary. In order to solve the problems, an electric tissue box capable of automatically distributing tissues is provided, wherein a cutter component capable of cutting off the tissues is arranged in the box body and comprises a fixed cutter and a movable cutter, the tissues are positioned between the fixed cutter and the movable cutter, the movable cutter is in transmission connection with a forward and reverse rotating motor, the motor rotates forward to drive the movable cutter to move towards the fixed cutter to cut and separate the tissues, and the motor rotates reversely to drive the movable cutter to be far away from the fixed cutter. The existing design has the following defects: 1. the cost of the forward and reverse rotation motor is high, and the circuit design of a circuit board for driving the forward and reverse rotation motor is complex, so that the cost of the whole electric tissue box is high; 2. the moving knife is in rigid contact with the transmission assembly, and the moving knife is easy to generate larger friction with the transmission assembly in the moving process of the moving knife, so that the transmission assembly and other structures are easy to damage.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides an aim at: the utility model provides a clean consumptive material cutting device which simple structure, with low costs, long service life.

To achieve the purpose, the embodiment of the present invention adopts the following technical solutions:

the utility model provides a cutting device for cleaning consumables, which comprises a shell, wherein a containing cavity is arranged in the shell, a paper outlet communicated with the containing cavity is arranged on the shell, a fixed knife and a movable knife component are respectively arranged in the containing cavity and positioned at two sides of the paper outlet, the movable knife component comprises a blade, a guide protection piece and a limit elastic sheet, a movable knife rest is fixed in the containing cavity, one end of the limit elastic sheet is connected with the movable knife rest, the other end of the limit elastic sheet is pressed against a side surface of the blade far away from the movable knife rest, the blade is provided with a driving hole, the guide protection piece is made of wear-resistant rubber and comprises a protection substrate, a guide convex part, a protection sleeve and an isolation part, the protection substrate is attached to one side of the blade close to the movable knife rest, the isolation part is arranged between the blade and the limit elastic sheet, the protective sleeve is inserted in the driving hole and connected with the protective substrate and the isolating part, the upper edge of the movable cutter rest is provided with a guide hole along the moving direction of the blade, the guide convex part is fixed on the protective substrate and is inserted in the guide hole, a motor is arranged in the accommodating cavity, the output shaft end of the motor is provided with a worm rod, the movable cutter rest is rotatably provided with a turbine, the turbine is provided with a driving shaft, the driving shaft and the rotating center of the turbine are arranged at intervals, and the driving shaft is inserted in the protective sleeve.

As a preferred scheme of the cutting device for the cleaning consumables, at least two guide convex parts are arranged on the protective substrate at intervals along the moving direction of the blade, and guide holes matched with the guide convex parts in number are formed in the movable blade holder.

As a clean consumptive material cutting device's a preferred scheme, the protection base plate, protection sleeve with isolation part integrated into one piece, protection sleeve's one end with the non-border position of protection base plate is connected, the port orientation of protection sleeve's the other end is kept away from one side at protection sleeve's center extends spacing portion, isolation part with spacing portion is connected, the protection base plate with form between the spacing portion and encircle the inserting groove of protection sleeve periphery, the part of blade peg graft in the inserting groove, just the pore wall butt of drive hole in the tank bottom of inserting groove.

As an optimal scheme of the cutting device for the cleaning consumables, two ends of the blade in the moving direction are respectively provided with a knife edge and an installation notch, and the part of the protection substrate penetrates through the installation notch to extend to one side face, far away from the movable knife rest, of the blade to form an auxiliary installation part.

As an optimal selection scheme of the cleaning consumable cutting device, the blade comprises a blade edge, the blade edge comprises two blade edge end faces which are arranged at included angles, and the joint of the blade edge end faces is provided with an avoidance notch.

As a preferable mode of the cleaning consumable cutting device, a length of the blade extends in a moving direction of the blade, a width direction of the blade is perpendicular to the length direction of the blade, a width direction of the guide guard coincides with the width direction of the blade, and the guide guard is symmetrically disposed in the width direction thereof.

As an optimal scheme of the cutting device for the cleaning consumables, the limiting elastic sheet comprises a pressing portion, connecting portions are arranged at two ends of the pressing portion in the length direction, one end, far away from the pressing portion, of each connecting portion is connected with the movable knife rest through a screw, each connecting portion comprises a first portion, a second portion and a third portion which are vertically connected in sequence, each first portion is connected with the movable knife rest, each third portion is connected with the pressing portion, the height of each second portion is larger than the thickness of the corresponding blade, and the pressing portion presses against one side face, far away from the movable knife rest, of the corresponding blade.

As a preferable mode of the cutting device for the cleaning consumables, the blade has an outer side edge which is matched with the second part, the outer side edge is obliquely arranged, and the inner side surface of the second part is parallel to the outer side edge.

As a preferred scheme of the cutting device for the cleaning consumables, heat dissipation holes are formed in the shell corresponding to the motor.

As a preferred scheme of the cutting device for the cleaning consumables, the fixed knife is fixed in the shell through a fixed knife bracket, the fixed knife bracket comprises a supporting surface for supporting the fixed knife, an ejection convex part is convexly arranged on the supporting surface, two ends of the fixed knife are fixed on the supporting surface through screws, the ejection convex part is positioned at the center of the fixed knife in the width direction and is abutted against the fixed knife, so that the fixed knife is bent towards one side far away from the supporting surface, and the width direction of the fixed knife is consistent with the width direction of the blade and is perpendicular to the moving direction of the movable knife assembly; the limiting elastic sheet is pressed against the center of the blade in the width direction, the blade is bent towards one side close to the movable blade holder under the action of the limiting elastic sheet, and the bending direction of the blade is opposite to that of the fixed blade.

The utility model has the advantages that: by arranging the guide protection piece, the cutter blade is not in rigid contact with the driving shaft when the driving shaft drives the cutter blade to move, so that the abrasion is reduced, the service life is prolonged, the surface of the wear-resistant rubber is smooth, the friction is less, the driving shaft and the protection sleeve are more smoothly matched in the driving process, and the heat is not easy to be generated and transferred to the motor; the guide convex part is arranged, the guide convex part is matched with the movable cutter rest to limit the blade to move close to or far away from the fixed cutter only along a straight line, and the limiting elastic sheet can prevent the blade from shifting along the thickness direction in the moving process; the structure through will driving the sword subassembly sets up to motor, scroll bar, turbine and eccentric settings's drive shaft complex structure for the motor only need realize that the rotation of single direction just can satisfy the blade and realize the cut paper along straight reciprocating motion, and the motor consumption is little, long service life, and with low costs.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Fig. 1 is the utility model discloses cleaning consumables cutting device's local structure sketch map.

Fig. 2 is an exploded view of fig. 1.

Fig. 3 is a perspective view of the moving blade assembly according to the embodiment of the present invention.

Fig. 4 is a perspective view of another view of the movable blade assembly according to the embodiment of the present invention.

Fig. 5 is a perspective view of a blade according to an embodiment of the present invention.

Fig. 6 is a perspective view of a guide protection member according to an embodiment of the present invention.

Fig. 7 is a perspective view of another perspective view of the guide protection member according to the embodiment of the present invention.

In the figure:

1. a housing; 11. heat dissipation holes; 2. fixing a cutter; 3. a movable knife component; 31. a blade; 311. a knife edge end face; 312. avoiding the notch; 313. a drive aperture; 314. installing a notch; 32. a guide protector; 321. a protective substrate; 322. a guide projection; 323. a protective sleeve; 324. an isolation section; 325. a limiting part; 326. inserting grooves; 327. an auxiliary mounting portion; 33. a limiting elastic sheet; 331. a pressing part; 332. a connecting portion; 3321. a first part; 3322. a second section; 3323. a third section; 4. a movable knife rest; 41. a guide hole; 5. a motor; 6. a turbine; 7. a drive shaft; 8. a fixed cutter support; 81. a support surface; 82. and ejecting the convex part.

Detailed Description

In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1 to 4, the cutting device for consumable cleaning materials of the embodiment of the present invention comprises a housing 1, a containing cavity is provided in the housing 1, a paper outlet communicated with the containing cavity is provided on the housing 1, a stationary knife 2 and a movable knife assembly 3 are respectively provided in the containing cavity and located at two sides of the paper outlet, the movable knife assembly 3 includes a blade 31, a guiding protection member 32 and a limiting elastic sheet 33, the movable knife holder 4 is fixed in the containing cavity, one end of the limiting elastic sheet 33 is connected with the movable knife holder 4, the other end is pressed against a side surface of the blade 31 far away from the movable knife holder 4, the blade 31 is provided with a driving hole 313, the guiding protection member 32 is made of wear-resistant rubber, the guiding protection member 32 includes a protection substrate 321, a guiding convex portion 322, a protection sleeve 323 and an isolation portion 324, the protection substrate 321 is attached to one side of the blade 31 close to the movable knife holder 4, the isolating part 324 is arranged between the blade 31 and the limiting elastic sheet 33, the protective sleeve 323 is inserted in the driving hole 313 and connected with the protective base plate 321 and the isolating part 324, the movable blade holder 4 is provided with a guide hole 41 along the moving direction of the blade 31, the guide convex part 322 is fixed on the protective base plate 321 and is inserted in the guide hole 41, the accommodating cavity is internally provided with a motor 5, the output shaft end of the motor 5 is provided with a worm rod, the movable blade holder 4 is rotatably provided with a turbine 6, the turbine 6 is provided with a driving shaft 7, the driving shaft 7 and the rotating center of the turbine 6 are arranged at intervals, and the driving shaft 7 is inserted in the protective sleeve 323. By arranging the guide protection piece 32, the blade 31 is not in rigid contact with the driving shaft 7 when the driving shaft 7 drives the blade 31 to move, so that the abrasion is reduced, the service life is prolonged, the surface of the wear-resistant rubber is smooth, the friction is less, the driving shaft 7 and the protective sleeve 323 are more smoothly matched in the driving process, and the heat is not easy to generate and is transferred to the motor 5; by arranging the guide convex part 322, the cooperation of the guide convex part 322 and the movable knife rest 4 limits the blade 31 to move close to or far away from the fixed knife 2 only along a straight line, and the arrangement of the limiting elastic sheet 33 can prevent the blade 31 from shifting along the thickness direction thereof in the moving process; move the structure of sword subassembly 3 through will driving and set up to motor 5, scroll bar, turbine 6 and eccentric settings's drive shaft 7 complex structure for motor 5 only needs to realize that the rotation of single direction just can satisfy blade 31 and realize the cut paper along straight reciprocating motion, and motor 5 consumption is little, long service life, and is with low costs.

The cleaning consumable specifically refers to articles such as paper towels, wet paper towels, towels or face washing towels that can clean the body of a person, and in this embodiment, the cleaning consumable is in a roll shape before being cut off.

In one embodiment, as shown in fig. 1 to 7, at least two guiding protrusions 322 are disposed on the protective substrate 321 at intervals along the moving direction of the blade 31, and the movable blade holder 4 is provided with guiding holes 41 whose number matches the number of the guiding protrusions 322. Through setting up two direction convex parts 322, can prevent that blade 31 from rotating on the plane of moving knife rest 4 installation blade 31, guarantee that blade 31 takes place the position skew at the removal in-process, guarantee blade 31 according to with the angle of setting for with the clean consumptive material of stationary knife 2 cooperation cutting.

The guide hole 41 is an elongated hole, and the length of the guide hole 41 extends along the moving direction of the blade 31. Preferably, two guide holes 41 are provided at intervals along the length direction of the blade 31. The two guide holes 41 arranged at intervals can avoid the situation that a larger hole is formed in the movable knife rest 4, so that the strength of the movable knife rest 4 is ensured to a certain extent, and the deformation of the movable knife rest 4 is reduced.

The guide protrusion 322 has a rectangular cross section. The two opposite side surfaces of the guide convex part 322 with the rectangular structure can be parallel to the two hole walls in the width direction of the guide hole 41, and in the moving process of the blade 31, the wider area of the guide convex part 322 is matched with the hole walls of the guide hole 41, so that the stability of the blade 31 in the moving process can be improved, and the blade 31 is prevented from deviating on a horizontal plane. In other embodiments, the cross section of the guiding protrusion 322 may be circular, and the circular guiding protrusion 322 may reduce friction with the guiding hole 41, so that the moving process of the blade 31 is smoother and less prone to jamming.

In an embodiment, the protection substrate 321, the protection sleeve 323 and the isolation portion 324 are integrally formed, one end of the protection sleeve 323 is connected to a non-edge position of the protection substrate 321, a port at the other end of the protection sleeve 323 extends to a limit portion 325 towards one side away from the center of the protection sleeve 323, the isolation portion 324 is connected to the limit portion 325, an insertion groove 326 surrounding the periphery of the protection sleeve 323 is formed between the protection substrate 321 and the limit portion 325, a part of the blade 31 is inserted into the insertion groove 326, and a hole wall of the driving hole 313 abuts against a groove bottom of the insertion groove 326. By integrally forming the protection substrate 321, the protection sleeve 323 and the isolation part 324, the manufacturing difficulty of the guide protection part 32 can be reduced, assembly is not needed, and the service life of the guide protection part 32 is prolonged; by providing the insertion groove 326, the protection sleeve 323 can be fitted in the driving hole 313 of the blade 31, and the protection base 321, the isolation portion 324, and the stopper portion 325 can be fitted on the side of the blade 31.

The isolation portion 324 is partially abutted against the limiting elastic sheet 33 all the time in the moving process of the blade 31. The design can ensure that the blade 31 can not be in rigid contact with the limiting elastic sheet 33 all the time, and reduces the abrasion of the blade 31 and the limiting elastic sheet 33.

Further, the guide protection member 32 includes two isolation portions 324, the two isolation portions 324 are strip-shaped, one end of the isolation portion 324 in the length direction is connected to the limiting portion 325, and the two isolation portions 324 are symmetrically disposed along the center line of the guide protection member 32 in the width direction.

In this embodiment, the blade 31 is provided with a blade edge and a mounting notch 314 at two ends along the moving direction thereof, and a portion of the protection substrate 321 extends through the mounting notch 314 to a side surface of the blade 31 away from the movable blade holder 4 to form an auxiliary mounting portion 327. By arranging the auxiliary mounting portion 327, the auxiliary mounting portion 327 is combined with the protective sleeve 323, the protective base plate 321 and the limiting portion 325, so that the whole guide protection member 32 can be fixed on the blade 31, and the guide protection member 32 is not easily separated from the blade 31 in the moving process of the blade 31.

In other embodiments, the guide protection member 32 may be adhered to the blade 31 by glue, so as to improve the stability of the connection between the guide protection member 32 and the blade 31, and if the glue adhesion is increased, the auxiliary mounting portion 327 may or may not be provided.

In an embodiment, the knife edge of the blade 31 includes two knife edge end surfaces 311 arranged at an included angle, and an avoidance notch 312 is arranged at a junction of the two knife edge end surfaces 311. Through setting up the edge of a knife terminal surface 311 that is the contained angle for blade 31 can accomplish the cutting of clean consumptive material smoothly with the cooperation of stationary knife 2, reduces the cutting degree of difficulty, and sets up in the handing-over department of the edge of a knife terminal surface 311 that two contained angles set up and dodge breach 312, can guarantee that there is the part to connect after the cutting of clean consumptive material, is unlikely to all to cut off and drops, promotes the sanitary effect that clean consumptive material used.

In one embodiment, the length of the blade 31 extends along the moving direction of the blade 31, the width direction of the blade 31 is perpendicular to the length direction of the blade 31, the width direction of the guide and protection member 32 is consistent with the width direction of the blade 31, and the guide and protection member 32 is symmetrically arranged along the width direction thereof. The symmetrically arranged guide protection pieces 32 can reduce the material usage amount of the guide protection pieces 32 and can also ensure the protection effect of the guide protection pieces 32 on the blade 31.

Preferably, the structure of the blade 31 is symmetrically arranged in the width direction thereof, and the width-direction center line of the blade 31 coincides with the width-direction center line of the guide guard 32.

In one embodiment, the limiting elastic sheet 33 includes a pressing portion 331, two ends of the pressing portion 331 in the length direction are provided with a connecting portion 332, one end of the connecting portion 332, which is far away from the pressing portion 331, is connected with the movable knife holder 4 through a screw, the connecting portion 332 includes a first portion 3321, a second portion 3322 and a third portion 3323, which are vertically connected in sequence, the first portion 3321 is connected with the movable knife holder 4, the third portion 3323 is connected with the pressing portion 331, the height of the second portion 3322 is greater than the thickness of the blade 31, and the pressing portion 331 presses against a side surface of the blade 31, which is far away from the movable knife holder 4. The limiting elastic sheet 33 is designed to abut against the blade 31, so that the blade 31 is prevented from moving in the thickness direction, and the position of the blade 31 in the width direction can be limited in an auxiliary manner.

In this embodiment, the blade 31 has an outer side edge which is matched with the second portion 3322, the outer side edge is obliquely arranged, and the inner side surface of the second portion 3322 is parallel to the outer side edge. The second portion 3322 of this design also provides positional guidance for the movement of the blade 31.

The shell 1 is provided with heat dissipation holes 11 corresponding to the motor 5. Through setting up louvre 11, can dispel the heat fast to the great motor 5 of calorific capacity. In the present embodiment, the housing 1 is integrally injection molded from plastic.

In other embodiments, the heat dissipation hole 11 may not be formed, and a heat conducting metal plate with a good heat dissipation effect is disposed at a position of the housing 1 corresponding to the motor 5, or the entire housing 1 is made of metal.

As shown in fig. 1 and 2, the fixed knife 2 is fixed in the housing 1 through the fixed knife holder 8, the fixed knife holder 8 includes a supporting surface 81 for supporting the fixed knife 2, an ejecting protrusion 82 is convexly provided on the supporting surface 81, two ends of the fixed knife 2 are fixed on the supporting surface 81 through screws, the ejecting protrusion 82 is located at the center of the fixed knife 2 in the width direction and abuts against the fixed knife 2, so that the fixed knife 2 is bent toward a side away from the supporting surface 81, and the width direction of the fixed knife 2 is consistent with the width direction of the blade 31 of the movable knife assembly 3 and is perpendicular to the moving direction of the movable knife assembly 3; the pressing part 331 of the limiting elastic sheet 33 is located in the center of the width direction of the blade 31 of the movable blade assembly 3, the blade 31 is bent towards the side close to the movable blade holder 4 under the action of the pressing part 331, the bending direction of the blade 31 is opposite to that of the fixed blade 2, and the cleaning consumables can be completely cut off except the position avoiding the notch 312.

Further, the ejection protrusion 82 has a hemispherical structure. The ejection convex part 82 with the structure can reduce the angular contact with the fixed cutter 2, and ensure that the surface of the fixed cutter 2 is not scratched or abraded.

In the description herein, it is to be understood that the terms "upper" and the like are used in a descriptive sense and based on the orientation or positional relationship shown in the drawings for convenience in description and simplicity of operation, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, configuration and operation in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description herein, references to the description of "an embodiment" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.

The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.

Claims

1. A cutting device for cleaning consumables comprises a shell, wherein a containing cavity is arranged in the shell, a paper outlet communicated with the containing cavity is formed in the shell, a stationary knife and a movable knife assembly are arranged in the containing cavity and positioned on two sides of the paper outlet respectively, the movable knife assembly comprises a blade, a guide protection piece and a limiting elastic sheet, a movable knife rest is fixed in the containing cavity, one end of the limiting elastic sheet is connected with the movable knife rest, the other end of the limiting elastic sheet is pressed against a side face, away from the movable knife rest, of the blade, a driving hole is formed in the blade, the guide protection piece is made of wear-resistant rubber and comprises a protection substrate, a guide convex part, a protection sleeve and an isolation part, the protection substrate is attached to one side, close to the movable knife rest, of the blade, and the isolation part is arranged between the blade and the limiting elastic sheet, the protective sleeve is inserted in the driving hole and connected with the protective substrate and the isolating part, the upper edge of the movable cutter rest is provided with a guide hole along the moving direction of the blade, the guide convex part is fixed on the protective substrate and is inserted in the guide hole, a motor is arranged in the accommodating cavity, the output shaft end of the motor is provided with a worm rod, the movable cutter rest is rotatably provided with a turbine, the turbine is provided with a driving shaft, the driving shaft and the rotating center of the turbine are arranged at intervals, and the driving shaft is inserted in the protective sleeve.

2. The cutting device for the cleaning consumables according to claim 1, wherein the protective substrate is provided with at least two guide protrusions at intervals along the moving direction of the blade, and the movable blade holder is provided with guide holes matched with the guide protrusions in number.

3. The cutting device for the cleaning consumables according to claim 1, wherein the protective substrate, the protective sleeve and the isolation portion are integrally formed, one end of the protective sleeve is connected with a non-edge position of the protective substrate, a port at the other end of the protective sleeve extends to one side away from the center of the protective sleeve to form a limiting portion, the isolation portion is connected with the limiting portion, an insertion groove surrounding the periphery of the protective sleeve is formed between the protective substrate and the limiting portion, a part of the blade is inserted into the insertion groove, and a hole wall of the driving hole abuts against a groove bottom of the insertion groove.

4. The cutting device for the cleaning consumables according to claim 3, wherein the blade is provided with a blade edge and a mounting notch at two ends along the moving direction of the blade, and the part of the protective substrate passes through the mounting notch and extends to one side surface of the blade far away from the movable blade holder to form an auxiliary mounting part.

5. The cutting device for the cleaning consumables according to claim 1, wherein the blade comprises a blade edge, the blade edge comprises two blade edge end faces arranged at an included angle, and an avoidance notch is arranged at the joint of the two blade edge end faces.

6. The cleaning consumable cutting apparatus according to claim 1, wherein a length of the blade extends in a moving direction of the blade, a width direction of the blade is perpendicular to the length direction of the blade, a width direction of the guide protector coincides with the width direction of the blade, and the guide protectors are symmetrically disposed in the width direction thereof.

7. The cutting device for the cleaning consumables according to any one of claims 1 to 6, wherein the limiting elastic sheet comprises a pressing part, connecting parts are arranged at two ends of the pressing part in the length direction, one end, away from the pressing part, of each connecting part is connected with the movable knife rest through a screw, each connecting part comprises a first part, a second part and a third part which are sequentially and vertically connected, each first part is connected with the movable knife rest, each third part is connected with the pressing part, the height of each second part is larger than the thickness of each blade, and each pressing part presses one side face, away from the movable knife rest, of each blade.

8. The cutting device for cleaning consumables according to claim 7, wherein the blade has an outer side edge engaged with the second portion, the outer side edge being disposed obliquely, and an inner side surface of the second portion being parallel to the outer side edge.

9. The cutting device for cleaning consumables according to any one of claims 1 to 6, wherein heat dissipation holes are provided in the casing corresponding to the motor.

10. The cutting device for the cleaning consumables according to any one of claims 1 to 6, wherein the fixed knife is fixed in the housing by a fixed knife holder, the fixed knife holder includes a support surface for supporting the fixed knife, an ejection protrusion is convexly provided on the support surface, two ends of the fixed knife are fixed on the support surface by screws, the ejection protrusion is located at the center of the fixed knife in the width direction and abuts against the fixed knife so that the fixed knife is bent towards the side away from the support surface, and the width direction of the fixed knife is consistent with the width direction of the blade and is perpendicular to the moving direction of the movable knife assembly; the limiting elastic sheet is pressed against the center of the blade in the width direction, the blade is bent towards one side close to the movable blade holder under the action of the limiting elastic sheet, and the bending direction of the blade is opposite to that of the fixed blade.