Cleaning scraper knife

Abstract

The utility model discloses a cleaning scraper knife which comprises a knife handle and a wide blade arranged at the head of the knife handle, a containing groove with an opening is formed in the tail end of the knife handle, a narrow blade is arranged in the containing groove, and the narrow blade can extend out of the containing groove from the opening or be hidden in the containing groove. When the narrow blade is in the hidden state, the whole narrow blade is located inside the knife handle, and when the narrow blade is in the extending state, the cutting edge of the narrow blade is located outside the knife handle. The narrow blade is additionally arranged at the tail end of the scraper knife handle of an original wide-blade scraper knife, the narrow blade can be hidden in the scraper knife handle when not used, the shape of the narrow blade is basically consistent with that of the original wide-blade scraper knife, the using effect of the original wide blade is not affected, and when the narrow blade needs to be used, the narrow blade extends out of the scraper knife handle to be suitable for small-area finer cleaning work. The multifunctional kitchen knife has the advantages of being multifunctional, reducing the number of carried tools, saving consumables and cost, improving user experience, and being practical, convenient to use and the like.

Description

Technical Field

[0001] The utility model relates to a cleaning scraper, in particular to a cleaning scraper. Background Art

[0002] A cleaning scraper is a commonly used cleaning tool, comprising a handle and a blade located at the head of the handle. The blade can be divided into wide blades and narrow blades according to the model. The wide blade is used for large-area cleaning work, and the narrow blade is used for small-area cleaning work. In actual use, workers need to purchase and use scrapers with two different blades alternately, which results in inconvenient user experience, high cost, and many and cumbersome tools. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a cleaning scraper which is easy to use, highly practical, low in cost and can have both a wide blade and a narrow blade.

[0004] In order to solve the above technical problems, the technical solution of the present utility model is: a cleaning scraper, comprising a handle and a wide blade arranged at the head of the handle, the tail end of the handle is provided with a receiving groove with an opening, and a narrow blade is provided in the receiving groove, and the narrow blade can extend out of the receiving groove through the opening or be hidden in the receiving groove; when the narrow blade is in a hidden state, the narrow blade is located as a whole inside the handle, and when the narrow blade is in an extended state, the cutting edge of the narrow blade is located outside the handle.

[0005] As a preferred technical solution, the narrow blade is slidably arranged in the accommodating groove through a blade pusher, and the opening is arranged at the tail end of the knife handle. The blade pusher can drive the narrow blade to slide along the opening to extend out of the accommodating groove or slide back into the accommodating groove.

[0006] As a preferred technical solution, the blade pusher includes a sliding knife seat and an operating push rod. The sliding knife seat is slidably installed in the accommodating groove, the narrow blade is installed at one end of the sliding knife seat, and the operating push rod is connected to the other end of the sliding knife seat. The upper part of the operating push rod is also slidably installed on the knife handle, and the lower part cooperates with the sliding knife seat to achieve locking or unlocking.

[0007] As an optimal technical solution, a button slide groove is provided on the side of the knife handle, and the top end of the operating push rod extends out of the button slide groove and is provided with a knife-discharging push button. The side of the operating push rod is provided with a push rod limit block that rests against the inner wall of the knife handle, and the bottom end of the operating push rod passes through the sliding knife seat. The outer sleeve of the operating push rod is provided with a clamping spring 1, one end of the clamping spring 1 rests on the sliding knife seat, and the other end of the clamping spring 1 rests on the limiting surface of the operating push rod.

[0008] As a preferred technical solution, the tail end of the handle is provided with a flattened bevel, and the flattened bevel gradually tilts and becomes thinner toward the side surface of the narrow blade.

[0009] As an optimal technical solution, the sliding knife seat is provided with a deformable mounting claw, the mounting claw is provided with a mounting protrusion for clamping the narrow blade, the mounting claw is also provided with a tool changing protrusion, and the knife handle is provided with a tool changing button, and the tool changing button corresponds to the position of the tool changing protrusion.

[0010] As an optimal technical solution, the narrow blade is installed in the accommodating groove by horizontal rotation through a blade rotating member, and the opening is provided at the tail end and one side of the tail end of the handle. The blade rotating member can drive the narrow blade to rotate along the opening and extend out of the accommodating groove or rotate and fold in the accommodating groove.

[0011] As a preferred technical solution, the blade rotating member includes a rotating blade seat and an unlocking button, one end of the rotating blade seat is rotatably installed in the accommodating groove, the narrow blade is installed on the other end of the rotating blade seat, and the unlocking button is installed on the knife handle and cooperates with the rotating blade seat to lock or unlock.

[0012] As a preferred technical solution, the unlocking button includes a button body vertically slidably installed on the knife handle, the top and bottom ends of the button body are respectively provided with an upper pressure plate and a lower limit plate, a compression spring 2 is provided between the upper pressure plate and the knife handle, the lower surface of the rotating knife seat is provided with a locking groove, and the upper surface of the lower limit plate is provided with a locking column that passes through the knife handle and is plugged into the locking groove.

[0013] As a preferred technical solution, a paddle is further provided on the outer surface of the rotating blade seat. When the rotating blade seat is folded in the accommodating groove, the paddle extends out of the opening.

[0014] Due to the adoption of the above technical scheme, the beneficial effects of the present invention are as follows: the present scheme adds a narrow blade at the tail end of the handle of the original wide-blade scraper. When the narrow blade is not in use, it can be hidden inside the handle. Its appearance is basically the same as the original wide-blade scraper, and does not affect the use effect of the original wide blade. When the narrow blade is needed, the narrow blade is extended out of the handle, which can be used for more detailed cleaning work of a small area, or cleaning work of narrow gaps and local areas, or cleaning work that requires greater cleaning force (the force of the narrow blade is more concentrated); the wide blade and the narrow blade of the present invention are arranged at both ends of the handle, and the two do not affect each other, and can meet the needs of large-area cleaning and small-area cleaning work at the same time, realizing multiple uses of one knife, reducing the number of tools carried, saving consumables and costs, improving user experience, and having the advantages of practicality and ease of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The following drawings are only intended to illustrate and explain the present invention, and are not intended to limit the scope of the present invention.

[0016] Figure 1 This is a schematic structural diagram of the first embodiment of the present invention;

[0017] Figure 2 This is a partial structural diagram of the first embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the utility model in which the narrow blade is extended in the first embodiment;

[0019] Figure 4 This is a schematic diagram of the utility model in which the narrow blade is retracted.

[0020] Figure 5 This is a structural diagram of a blade pusher according to a first embodiment of the present invention;

[0021] Figure 6 This is a schematic structural diagram of a manipulation push rod according to a first embodiment of the present invention;

[0022] Figure 7 This is a structural diagram of a sliding knife seat according to a first embodiment of the present invention;

[0023] Figure 8 This is a schematic structural diagram of the second embodiment of the present utility model;

[0024] Figure 9 This is a schematic diagram of the second embodiment of the present invention showing the narrow blade in an extended state;

[0025] Figure 10 This is a schematic diagram of the unlocking principle of a narrow blade in the second embodiment of the present utility model;

[0026] Figure 11 This is a schematic diagram of the folded narrow blade of the second embodiment of the present invention;

[0027] Figure 12 This is a structural diagram of a blade rotating member according to a second embodiment of the present invention;

[0028] In the figure: 100 - tool handle; 101 - button slide; 102 - limit groove; 103 - flattened bevel; 200 - wide blade; 300 - narrow blade; 400 - receiving groove; 500 - blade pusher; 510 - sliding tool holder; 511 - seat plate; 512 - lower limit surface; 513 - upper limit surface; 514 - stopper; 515 - mounting claw; 516 - mounting protrusion; 517 - tool change protrusion Start; 518- tool change button; 520- operating push rod; 521- tool release push button; 522- push rod limit block; 523- compression spring 1; 600- rotating part level; 610- rotating tool holder; 611- locking hole; 612- paddle; 620- unlock button; 621- button body; 622- upper pressure plate; 623- lower limit plate; 624- compression spring 2; 625- locking column. DETAILED DESCRIPTION

[0029] The present invention is further described below with reference to the accompanying drawings and examples. In the detailed description that follows, certain exemplary embodiments of the present invention are described by way of illustration only. It goes without saying that those skilled in the art will recognize that the described embodiments may be modified in various ways without departing from the spirit and scope of the present invention. Therefore, the drawings and description are illustrative in nature and are not intended to limit the scope of the claims.

[0030] Example 1:

[0031] The cleaning scraper includes a handle 100 and a wide blade 200 provided at the head of the handle 100. The wide blade 200 can be installed at the head of the handle 100 in a fixed or detachable manner. The cleaning scraper at this time is basically the same as the structure of the wide blade 200 cleaning scraper commonly used in the prior art. At this time, the scraper can be suitable for preliminary cleaning work of a large area, but it cannot complete more detailed cleaning work of a small area. In order to solve this problem, the present application makes structural improvements on the basis of the wide blade 200 cleaning scraper of the prior art, and provides a cleaning scraper with both a wide blade 200 and a narrow blade 300.

[0032] The blade width of the wide blade 200 is greater than that of the narrow blade 300. The wide blade 200 is used for preliminary cleaning of large areas, while the narrow blade 300 is used for more detailed cleaning of small areas. Preferably, the blade width of the narrow blade 300 is 1 / 3 to 1 / 4 of the blade width of the wide blade 200.

[0033] See also Figures 1 to 7A cleaning scraper includes a handle 100, a wide blade 200 is provided at the head of the handle 100, a receiving groove 400 with an opening is provided at the tail end of the handle 100, a narrow blade 300 is provided in the receiving groove 400, and the narrow blade 300 can extend out of the receiving groove 400 through the opening or be hidden in the receiving groove 400; when the narrow blade 300 is in a hidden state, the narrow blade 300 is located entirely inside the handle 100, and when the narrow blade 300 is in an extended state, the cutting edge of the narrow blade 300 is located outside the handle 100.

[0034] This solution adds a narrow blade 300 to the end of the handle 100 of the original wide blade 200 scraper. When not in use, the narrow blade 300 can be hidden inside the handle 100. Its appearance is basically the same as the original wide blade 200 scraper, and does not affect the use effect of the original wide blade 200. When the narrow blade 300 is needed, the narrow blade 300 is extended out of the handle 100, which can be used for small and more detailed cleaning work, or cleaning work in narrow gaps and local areas, or cleaning work that requires greater cleaning force (the force of the narrow blade 300 is more concentrated). The wide blade 200 and the narrow blade 300 of the present invention are arranged at both ends of the handle 100, and the two do not affect each other. They can simultaneously meet the needs of large and small area cleaning work, realize multiple uses of one blade, reduce the number of tools carried, save consumables and costs, improve user experience, and have the advantages of practicality and ease of use.

[0035] See also Figures 2 to 7 The narrow blade 300 is slidably disposed within the accommodating groove 400 via a blade pusher 500. The opening is provided at the rear end of the knife handle 100. The shape of the opening is the same as the cross-sectional shape of the narrow blade 300, allowing the narrow blade 300 to pass through. The blade pusher 500 can drive the narrow blade 300 to slide along the opening to extend out of the accommodating groove 400 or to slide back into the accommodating groove 400. In this embodiment, the blade pusher 500 is used to control the narrow blade 300 to slide out and retract along the length direction of the knife handle 100. After the narrow blade 300 is fully retracted into the accommodating groove 400, it is also fully retracted into the knife handle 100.

[0036] See also Figures 3 to 5The blade pusher 500 includes a sliding knife seat 510 and an operating push rod 520. The sliding knife seat 510 is slidably installed in the accommodating groove 400. The narrow blade 300 is limitedly installed at one end of the sliding knife seat 510. The operating push rod 520 is connected to the other end of the sliding knife seat 510. The upper part of the operating push rod 520 is also slidably installed on the knife handle 100, and the lower part cooperates with the sliding knife seat 510 to achieve locking or unlocking. The sliding knife seat 510 serves as an installation base for installing the narrow blade 300. The narrow blade 300 is extended and retracted as the sliding knife seat 510 moves. The operating push rod 520 serves as a key structure for controlling the sliding knife seat 510. When the operating push rod 520 is locked, the position of the sliding knife seat 510 and the narrow blade 300 thereon is fixed. When the operating push rod is unlocked, the sliding knife seat 510 can drive the narrow blade 300 to slide, extend and retract along the accommodating groove 400.

[0037] See also Figures 3 to 7The side of the knife handle 100 is provided with a button slide 101, and the button slide 101 is arranged along the length direction of the knife handle 100. The operating push rod 520 slides along the button slide 101. The top end of the operating push rod 520 extends out of the button slide 101 and is provided with a knife push button 521. The outside of the knife handle 100 is provided with a downwardly concave groove. The knife push button 521 is located in the groove and slides along the groove to prevent the knife push button 521 from protruding from the outer surface of the knife handle 100 and affecting the operation. Operation feel: A push rod limit block 522 is provided on the side of the operating push rod 520, and the upper surface of the push rod limit block 522 rests on the inner wall of the knife handle 100. The bottom end of the operating push rod 520 passes through the sliding knife seat 510. The outer sleeve of the operating push rod 520 is provided with a clamping spring 523, and the bottom end of the clamping spring 523 rests on the sliding knife seat 510. The top end of the clamping spring 523 passes through the sliding knife seat 510 and rests on the limiting surface of the operating push rod 520. When the knife-out push button 521 is not pressed, the compression spring 1 523 presses the limiting surface of the operating push rod 520 upward, pushing the operating push rod 520 upward so that the push rod limiting block 522 is tightly against the inner wall of the knife handle 100, thereby locking the operating push rod 520. At this time, the position of the sliding knife seat 510 and the narrow blade 300 are fixed, and the cleaning work can be carried out; when the knife-out push button 521 is pressed downward, the compression spring 1 523 is compressed, and the push rod limiting block 522 is no longer pressed downward with the knife handle 100. The inner wall of the knife handle 100 is contacted to unlock the knife, and the knife-out push button 521 is pushed at this time. The sliding knife seat 510 and the narrow blade 300 are driven to slide by the operating push rod 520 to achieve the retraction, extension and extension length adjustment of the narrow blade 300. When the knife-out push button 521 slides to the left end of the button slide 101, the narrow blade 300 is completely retracted into the interior of the knife handle 100 for hiding, which does not affect the use effect of the original wide blade 200, nor does it affect the appearance of the original wide blade 200.

[0038] See also Figure 3 and Figure 4 In order to ensure the stability of the fully retracted position and the fully extended position, two limit grooves 102 corresponding to the push rod limit block 522 are provided on the inner wall surface of the knife handle 100. The positions of the two limit grooves 102 correspond to the fully retracted and fully extended states, respectively. When the push rod limit block 522 is engaged in the limit groove 102, the positions of the operating push rod 520 and the sliding knife seat 510 are completely locked. It can be ensured that the knife will not be retracted at will during the cleaning work and the knife will not be extended at will in the retracted state, which is safer to use. Only after pressing the knife-out push button 521 downward so that the push rod limit block 522 is completely separated from the limit groove 102 can it be unlocked and sliding adjustment can be performed.

[0039] In order to facilitate the removal of the narrow blade 300, a flattened bevel 103 is provided at the tail end of the handle 100. The flattened bevel 103 gradually tilts and becomes thinner toward the side surface of the narrow blade 300, which can prevent the tail end of the handle 100 from being too thick and affecting the work of the narrow blade 300. The structure of the flattened bevel 103 is shown in FIG. Figure 2 .

[0040] See also Figure 7 The sliding knife seat 510 includes a seat plate 511, a lower limit surface 512 is provided at the bottom end of the seat plate 511, upper limit surfaces 513 and stoppers 514 parallel to the seat plate 511 are provided on the left and right sides of the top of the seat plate 511, and the seat plate 511, the stoppers 514, the lower limit surface 512 and the upper limit surface 513 cooperate to form a rectangular space with a width corresponding to the thickness of the narrow blade 300, and the narrow blade 300 is placed in the rectangular space. In order to fix the position of the narrow blade 300, a mounting claw 515 that can be deformed in the direction away from the blade is provided on the upper middle side of the seat plate 511 of the sliding knife seat 510, and the mounting claw 515 is provided with a mounting protrusion 516 for clamping the narrow blade 300. The mounting claw 515 is also provided with a tool changing protrusion 517, and the tool handle 100 is provided with a tool changing button 518, and the tool changing button 518 corresponds to the position of the tool changing protrusion 517. When it is necessary to remove the knife, the knife-changing button 518 is pressed, and the knife-changing protrusion 517 is pushed downward to deform the mounting claw 515 downward, so that the mounting protrusion 516 moves away from the narrow blade 300, and the mounting protrusion 516 is separated from the slot on the narrow blade 300. At this time, the narrow blade 300 is pulled outward to complete the knife removal; when it is necessary to reinstall the blade, the knife-changing button 518 is pressed, and the knife-changing protrusion 517 is pushed downward to deform the mounting claw 515 downward, and then the narrow blade 300 is inserted from the outside into the rectangular space, and the slot of the narrow blade 300 corresponds to the mounting protrusion 516. At this time, the knife-changing button 518 is released, the mounting claw 515 is deformed again, and the mounting protrusion 516 is just stuck in the slot of the narrow blade 300, and the narrow blade 300 is limited and fixed, that is, the knife-changing installation of the narrow blade 300 is completed. The sliding knife seat 510 can be a metal plate seat or a plastic plate seat with a certain elastic deformation, ensuring that the mounting claw 515 can be pressed and deformed.

[0041] The inner and outer ends of the narrow blade 300 may be provided with cutting edges. When the cutting edge at one end is damaged, the narrow blade 300 is taken out, and then the positions of the cutting edges are exchanged, and the cutting edge at the other end is used to continue working.

[0042] The middle portion of the knife handle 100 is also provided with a blade storage compartment for storing wide blades 200 and narrow blades 300 .

[0043] The knife handle 100 can be formed by buckling an upper shell and a lower shell.

[0044] Example 2:

[0045] The structure of this embodiment is different from that of the first embodiment. In the first embodiment, the narrow blade 300 is extended and retracted by sliding, while the narrow blade 300 of this embodiment is extended and folded by rotating.

[0046] See also Figures 8 to 12 The narrow blade 300 is rotatably mounted in the receiving groove 400 via a blade rotating member 600. The opening is provided at the rear end and one side of the rear end of the knife handle 100. The opening is L-shaped. The blade rotating member can drive the narrow blade 300 to rotate along the opening to extend out of the receiving groove 400 or to rotate and fold into the receiving groove 400. In this embodiment, the blade rotating member controls the narrow blade 300 to rotate and extend horizontally along the opening or to rotate and fold. After the narrow blade 300 is completely folded into the receiving groove 400, it is completely hidden in the knife handle 100.

[0047] See also Figures 9 to 11 The blade rotating member includes a rotating blade seat 610 and an unlocking button 620. One end of the rotating blade seat 610 is rotatably mounted in the accommodating groove 400, and the narrow blade 300 is mounted on the other end of the rotating blade seat 610. The unlocking button 620 is mounted on the knife handle 100 and cooperates with the rotating blade seat 610 to lock or unlock. The rotating blade seat 610 serves as a mounting base for the narrow blade 300. It can be fixedly or detachably mounted on the rotating blade seat 610. The narrow blade 300 is extended and folded as the rotating blade seat 610 rotates. The unlocking button 620 serves as a key structure for controlling the rotating blade seat 610. When the unlocking button 620 is locked, the positions of the rotating blade seat 610 and the narrow blade 300 thereon are fixed. When the unlocking button 620 is unlocked, the rotating blade seat 610 can drive the narrow blade 300 to rotate.

[0048] See also Figures 9 to 11The unlocking button 620 includes a button body 621 vertically slidably mounted on the knife handle 100, and the top and bottom ends of the button body 621 are respectively provided with an upper pressure plate 622 and a lower limit plate 623. A compression spring 624 is provided between the upper pressure plate 622 and the knife handle 100. The lower surface of the rotating knife seat 610 is provided with a locking hole 611, and the upper surface of the lower limit plate 623 is provided with a locking member that passes through the knife handle 100 and is plugged into the locking hole 611. The column 625 and the second compression spring 624 push the upper pressure plate 622 upward, so that the lower limit plate 623 abuts against the lower surface of the knife handle 100, so that the locking column 625 passes through the knife handle 100 and is inserted into the locking hole 611. At the same time, the button body 621 can limit the rotation of the button body 621 through the sliding fit between the locking column 625 and the knife handle 100, so that the button body 621 can only slide and press vertically. In this embodiment, the rotation axis of the rotating knife seat 610 coincides with the axis of the button body 621, that is, the rotating knife seat 610 can rotate around the axis of the button body 621. There are two locking holes 611 and two locking columns 625, located on the left and right sides of the button body 621, which can achieve 0° or 180° position locking. When the narrow blade 300 is not in use, the narrow blade 300 is rotated and folded in the accommodating groove 400 and can be hidden in the knife handle 100; when the narrow blade 300 needs to be used, the button body 621 is pressed downward, and the locking column 625 withdraws from the corresponding locking hole 611. At this time, the narrow blade 300 is unscrewed, dialed out or pulled out, and the rotating blade seat 610 rotates 180° around the axis of the button body 621, driving the narrow blade 300 to fully extend, and then the button body 621 is released. Under the action of the compression spring 2 624, the locking column 625 is inserted into the corresponding locking hole 611 for locking. At this time, the positions of the rotating blade seat 610 and the narrow blade 300 are fixed, and the locking of the narrow blade 300 is completed.

[0049] See also Figure 12 The outer surface of the rotating knife seat 610 is also provided with a paddle 612. When the rotating knife seat 610 is folded in the accommodating groove 400, the paddle 612 extends out of the opening. When the button body 621 is pressed, the rotating knife seat 610 can be rotated by the paddle 612, which is convenient for operation.

[0050] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A cleaning scraper, comprising a handle and a wide blade provided at the head of the handle, characterized in that: The tail end of the knife handle is provided with a receiving groove with an opening, and a narrow blade is provided in the receiving groove. The narrow blade can extend out of the receiving groove through the opening or be hidden in the receiving groove; when the narrow blade is in a hidden state, the narrow blade is located as a whole inside the knife handle, and when the narrow blade is in an extended state, the cutting edge of the narrow blade is located outside the knife handle.

2. A cleaning blade according to claim 1, characterized in that: The narrow blade is slidably arranged in the accommodating groove through a blade pusher. The opening is arranged at the tail end of the knife handle. The blade pusher can drive the narrow blade to slide along the opening to extend out of the accommodating groove or slide back into the accommodating groove.

3. A cleaning blade according to claim 2, characterized in that: The blade pusher includes a sliding knife seat and an operating push rod. The sliding knife seat is slidably installed in the accommodating groove, the narrow blade is installed at one end of the sliding knife seat, and the operating push rod is connected to the other end of the sliding knife seat. The upper part of the operating push rod is also slidably installed on the knife handle, and the lower part cooperates with the sliding knife seat to achieve locking or unlocking.

4. A cleaning blade according to claim 3, characterized in that: The side of the knife handle is provided with a button slide groove, the top end of the operating push rod extends out of the button slide groove and is provided with a knife-discharging push button, the side of the operating push rod is provided with a push rod limit block that rests against the inner wall of the knife handle, the bottom end of the operating push rod passes through the sliding knife seat, and the outer sleeve of the operating push rod is provided with a clamping spring 1, one end of the clamping spring 1 rests on the sliding knife seat, and the other end of the clamping spring 1 rests on the limiting surface of the operating push rod.

5. The cleaning blade according to claim 3, wherein: The tail end of the knife handle is provided with a flattened bevel, and the flattened bevel gradually tilts and becomes thinner toward the side surface of the narrow blade.

6. The cleaning blade according to claim 3, characterized in that: The sliding knife seat is provided with a deformable mounting claw, the mounting claw is provided with a mounting protrusion for clamping the narrow blade, the mounting claw is also provided with a tool changing protrusion, and the knife handle is provided with a tool changing button, and the tool changing button corresponds to the position of the tool changing protrusion.

7. The cleaning blade according to claim 1, wherein: The narrow blade is installed in the accommodating groove by horizontal rotation through a blade rotating member, and the opening is provided at the tail end and one side of the tail end of the handle. The blade rotating member can drive the narrow blade to rotate along the opening and extend out of the accommodating groove or rotate and fold in the accommodating groove.

8. The cleaning blade according to claim 7, wherein: The blade rotating member includes a rotating blade seat and an unlocking button. One end of the rotating blade seat is rotatably installed in the accommodating groove, and the narrow blade is installed on the other end of the rotating blade seat. The unlocking button is installed on the knife handle and cooperates with the rotating blade seat to lock or unlock.

9. The cleaning blade according to claim 8, characterized in that: The unlocking button includes a button body vertically slidably mounted on the knife handle, the top and bottom ends of the button body are respectively provided with an upper pressure plate and a lower limit plate, a compression spring 2 is provided between the upper pressure plate and the knife handle, the lower surface of the rotating knife seat is provided with a locking groove, and the upper surface of the lower limit plate is provided with a locking column that passes through the knife handle and is plugged into the locking groove.

10. The cleaning blade according to claim 8, characterized in that: The outer surface of the rotating blade seat is further provided with a paddle. When the rotating blade seat is folded in the accommodating groove, the paddle extends out of the opening.

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