Art knife with blade replacement and recovery functions

Abstract

The utility model relates to the technical field of art knives, in particular to an art knife with a blade replacing and recycling function, which comprises a casing for placing a blade, a pushing seat for pushing the blade is arranged on the upper portion of the casing, and a track groove for blade displacement is arranged inside the casing. A track groove is formed in the shell, a blade bin used for storing blades is arranged at the tail end of the track groove, an adjusting base used for adjusting the position of the blade bin is arranged at the bottom of the shell, and a locking structure used in cooperation with the adjusting base is arranged on the side wall of the shell. The position, corresponding to the pushing base, of the blade bin is changed through the adjusting base, then the blade is rapidly replaced, direct contact with the blade is not needed in the replacing process, and the replacing process is safer and rapider.

Description

Technical Field

[0001] The utility model relates to the technical field of utility knives, in particular to a utility knife with a blade replacement and recycling function. Background Art

[0002] Currently, some utility knives on the market have replaceable blades: for example, the blade is pushed out, and when worn, a button is pressed to remove the blade. Then, the button is pushed back to reset it, and a new blade is pushed out again. However, a disadvantage of this type of utility knife is that workers don't know how to dispose of the removed blade, which can easily remain in the work area, causing secondary injuries or even accidents.

[0003] For example, Chinese patent (application number: 202321481934.2) discloses a tool knife with a continuous blade discharge function, comprising a handle portion and a blade head portion, the handle portion comprising a front shell, a rear shell and a connecting shaft connecting the front shell and the rear shell, the front shell and the rear shell forming a storage chamber, the front shell and the rear shell being openably connected as a whole, the blade head portion comprising a fixed blade holder fixedly connected to the rear shell and a movable blade holder slidably arranged between the rear shell and the fixed blade holder, the movable blade holder and the fixed blade holder forming a blade storage chamber for storing multiple blades, the blade storage chamber comprising a blade chamber a arranged on the movable blade holder and capable of storing only a single blade, the front shell being provided with an elastic pressing member for pressing the blade stored in the blade storage chamber toward one side of the movable blade holder, the handle portion being provided with a push button assembly a linked to the movable blade holder, the push button assembly a being used to push the movable blade holder and the single blade arranged in the blade chamber a toward the blade discharge port, thereby solving the problem of needing to open the shell to replenish the blade each time the blade is replaced. The problem of low efficiency in blade replacement is solved by storing multiple blades, but it does not have a very good processing effect on the recycling and reuse of waste blades. It cannot solve the recycling problem after blade replacement, nor can it improve the safety of waste blades during the replacement process. Utility Model Content

[0004] In order to solve the above problems, an embodiment of the present utility model provides a utility knife with a blade replacement and recycling function, which achieves the purpose of solving the safety problem of recycling waste blades raised in the background technology. It has the advantages of simple structure and easy operation. It can recycle waste blades while safely replacing blades, reduce the waste of blades during operation, and save production costs.

[0005] In order to achieve the above-mentioned purpose, the embodiment of the present utility model specifically adopts the following technical solutions: a utility knife with a blade replacement and recycling function, comprising a shell for placing a blade, a pushing seat for pushing the blade is provided on the upper part of the shell, a track groove for blade displacement is provided inside the shell, a blade magazine for storing the blade is provided at the end of the track groove, an adjustment seat for adjusting the position of the blade magazine is provided at the bottom of the shell, and a locking structure for use with the adjustment seat is provided on the side wall of the shell.

[0006] As a further improvement of the above technical solution:

[0007] A partition is provided in the middle of the blade bin, which divides the blade bin into a storage bin and a recovery bin. The inner side walls of the storage bin and the recovery bin are both provided with arc-shaped spring pieces for tightening the blades.

[0008] The adjustment seat includes a base plate, a toggle block extending to the outside of the shell is provided at the lower part of the base plate, a pressure spring connected to the shell is provided on one side wall of the toggle block, and baffles that fit with the side walls of the blade magazine are provided on both sides of the base plate, wherein a limiting protrusion used in conjunction with the locking structure is provided on the outer side wall of the baffle away from the pressure spring.

[0009] The upper surface of the base plate is provided with a plug-in board connected to the blade magazine, and the bottom of the blade magazine is provided with a plug-in slot corresponding to the position of the plug-in board.

[0010] There are two plug-in boards, which are respectively located in front of and behind the partition. The two plug-in boards are coaxially distributed with the partition.

[0011] A through hole corresponding to the position of the limiting protrusion is provided on the side wall of the shell.

[0012] The locking structure includes a locking strip slidably arranged on the inner wall of the shell, a limiting plate located between the through hole and the limiting protrusion is arranged at the lower part of the locking strip, and a linkage seat used in conjunction with the pushing seat is arranged on the inner side of the front end of the locking strip.

[0013] The linkage seat includes an adapter plate connected to the locking strip, a follower block is provided on the upper portion of the adapter plate, and a card interface used in conjunction with the follower block is provided on the pushing seat.

[0014] A sliding groove for sliding the locking bar is provided on the inner side wall of the shell, a groove for cooperating with the limit plate is provided at the lower part of the sliding groove, and a return spring for pushing the locking bar to the original position is provided in the sliding groove.

[0015] The width of the groove is greater than the width of the through hole, and the right edge of the groove coincides with the right edge of the through hole.

[0016] The beneficial effects of the embodiments of the utility model are as follows: the utility knife with the blade replacement and recycling function comprises a housing for placing the blade, a pushing seat for pushing the blade is provided on the upper part of the housing, a track groove for blade displacement is provided inside the housing, a blade compartment for storing the blade is provided at the end of the track groove, an adjustment seat for adjusting the position of the blade compartment is provided at the bottom of the housing, a locking structure for use with the adjustment seat is provided on the side wall of the housing, the blade compartment is used for blade storage, and when the blade needs to be replaced, the adjustment seat is used to change the corresponding position of the blade compartment and the pushing seat, thereby realizing rapid replacement of the blade, and during the replacement process, there is no need to directly contact the blade, and the replacement process is safer and faster;

[0017] The adjustment seat and the blade magazine are detachably connected. The blade can be reversed as a whole by reversing the blade magazine and then replaced at the other end, thereby improving the utilization rate of the blade. After both ends of the blade are worn, the blade magazine can be replaced as a whole with a new one or the blades in the blade magazine can be replaced in batches and then continued to be used. Compared with the conventional method of replacing blades individually, the blade magazine can store and collect waste blades, and finally collect and process them in a unified manner to avoid the discarded blades being placed at random. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the installation structure of the blade magazine in the present invention (protective cover omitted);

[0020] Figure 3 This is a top view of the utility model (protective cover omitted);

[0021] Figure 4 It is a cross-sectional view of the utility model;

[0022] Figure 5 It is a bottom view of the utility model;

[0023] Figure 6 This is a schematic diagram of the installation of the locking structure of the present invention;

[0024] Figure 7 This is a schematic structural diagram of the base in the present utility model;

[0025] Figure 8 This is a schematic structural diagram of the blade magazine in the present invention;

[0026] Figure 9 This is a schematic structural diagram of the push seat in the utility model;

[0027] Figure 10This is a structural diagram of the linkage seat in the utility model;

[0028] Figure 11 It is a structural schematic diagram of the protective cover in the utility model.

[0029] In the figure: 1. Shell; 2. Push seat; 3. Track groove; 4. Blade compartment; 5. Adjustment seat; 6. Partition; 7. Storage compartment; 8. Recovery compartment; 9. Arc-shaped spring; 10. Base plate; 11. Toggle block; 12. Press spring; 13. Baffle; 14. Limiting protrusion; 15. Plug plate; 16. Plug slot; 17. Through hole; 18. Locking strip; 19. Limiting plate; 20. Slide slot; 21. Groove; 22. Reset spring; 23. Adapter plate; 24. Follow-up block; 25. Card interface; 26. Linkage seat; 27. Base; 28. Protective cover; 29. ​​Plug; 30. Limiting groove; 31. Protruding ridge; 32. Channel; 33. Push plate. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0031] like Figure 1-11 As shown, the utility knife with blade replacement and recycling function of this embodiment includes a shell 1 for placing the blade, a pushing seat 2 for pushing the blade is provided on the upper part of the shell 1, a track groove 3 for blade displacement is provided inside the shell 1, and a blade magazine 4 for storing the blade is provided at the end of the track groove 3. The bottom of the shell 1 is provided with an adjustment seat 5 for adjusting the position of the blade magazine 4. The adjustment seat 5 can drive the blade magazine 4 to move along the width direction of the shell 1. While the old blade is being recycled, the new blade can also be pushed out, and the unfinished blade can be quickly replaced without the need to disassemble the blade, which is also safer. A locking structure used in conjunction with the adjustment seat 5 is provided on the side wall of the shell 1. The locking structure can limit the position of the blade magazine when in use to prevent the blade magazine 4 from deflecting and moving during use, which affects the recycling of the old blade.

[0032] The housing 1 includes a base 27 located at the bottom, and a detachable protective cover 28 is installed above the base 27. The front end of the protective cover 28 is rotatably connected to the base 27 through a pipe pin, and a plug 29 is provided at the end to seal the base 27 and the protective cover 28. The push seat 2 is installed on the protective cover 28, and the inner side walls of the front and rear ends of the protective cover 28 are provided with limiting grooves 30. The upper part of the push seat 2 is provided with a ridge 31 used in conjunction with the limiting groove 30, and the lower part is provided with a push plate 33 corresponding to the top groove position of the blade. The detachable connection between the base 27 and the protective cover 28 can facilitate the disassembly and assembly of the blade magazine 4. Both ends of the blade magazine 4 are provided with a blade for entering The channel 32 is out. When all the blades in the storage bin 7 are transferred to the recovery bin 8, the protective cover 28 is opened to take out the blade bin and then flip it 180° before installing it. At this time, the positions of the original recovery bin 8 and the storage bin 7 are interchanged. At this time, the worn end of the blade is facing the rear end of the shell 1, and the unused end is facing the front end of the shell 1. The blades are pushed forward one by one by the pushing seat 2 for secondary use. Through this design, both ends of the blade can be used synchronously and the adjustable design 3 of the blade bin can be used to carry out batch installation and recycling processing, thereby improving the efficiency of blade replacement and improving the safety of the replacement operation.

[0033] A partition 6 is provided in the middle of the blade bin 4, which divides the blade bin 4 into a storage bin 7 and a recovery bin 8. The inner walls of the storage bin 7 and the recovery bin 8 are provided with arc-shaped spring pieces 9 for tightening the blades. The function of the arc-shaped spring pieces is to apply thrust to the blades, ensuring that the new blades are always in contact with the partition 6 when replacing the blades, making it convenient for the push seat 2 to push the new blades along the track groove 3 to the working position.

[0034] The adjustment seat 5 includes a base plate 10, and the lower part of the base plate 10 is provided with a toggle block 11 extending to the outside of the shell 1. A pressing spring 12 connected to the shell 1 is provided on one side wall of the toggle block 11. The toggle block 11 can drive the adjustment base 5 to move horizontally, and then drive the blade bin 4 to move, so as to change the position of the storage bin 7 and the recycling bin 8. When the blade needs to be replaced, the push seat 2 is first toggled back to the initial position from the working position. At this time, the old blade enters the recycling bin 8 under the drive of the push seat 2. At this time, the toggle block 11 is slid to the right, and after driving the blade bin to move to the right, the storage bin 7 slides to the right to the bottom of the push seat 2. At this time, pressing the push seat 2 makes it move forward, driving the new blade to enter the working position after passing through the track groove 3. Baffles 13 are provided on both sides of the base plate 10, which are in contact with the side walls of the blade magazine 4. The outer wall of the baffle 13 away from the pressing spring 12 is provided with a limiting protrusion 14 used in conjunction with the locking structure. The position of the adjustment seat 5 can be locked through the limiting protrusion 14, so that it forms a linkage relationship with the push seat 2, so that the two are locked with each other in the working state (that is, the state where the blade extends out of the shell 1), maintaining the stability of the working state. At the same time, the locking structure can ensure that the blade can accurately enter the recovery bin 8 when it retracts.

[0035] The upper surface of the base plate 10 is provided with a plug-in board 15 connected to the blade magazine 4, and the bottom of the blade magazine 4 is provided with a plug-in slot 16 corresponding to the position of the plug-in board 15. The design of the plug-in board 15 and the plug-in slot 16 can play a guiding role when installing the blade magazine 4.

[0036] There are two plug-in boards 15, which are respectively located in front of and behind the partition 6. The two plug-in boards 15 are coaxially distributed with the partition 6. The two plug-in boards 15 are extensions of the partition 6. While playing a guiding role, they can also prevent the blade from deflecting during movement.

[0037] A through hole 17 corresponding to the position of the limiting protrusion 14 is provided on the side wall of the shell 1. When the blade is pushed out, the entire utility knife is in the working state. At this time, the locking structure cancels the left side limit of the adjustment seat 5, so that the pressing spring 12 can push the adjustment seat 5 to the left. At this time, the limiting protrusion 14 is clamped in the through hole 17, and the rear side of the limiting plate 19 is in contact with the front end surface of the limiting protrusion 14. The limiting protrusion 14 reversely limits the limiting plate 19 to prevent the locking bar 18 from sliding backward and causing the blade to retract, and cooperates with the position limit of the limiting groove 30 and the ridge 31 to ensure the stability of the blade extended in the working state through two limits.

[0038] The locking structure includes a locking strip 18 slidingly arranged on the inner wall of the shell 1, and the lower part of the locking strip 18 is provided with a limiting plate 19 located between the through hole 17 and the limiting protrusion 14. The inner side of the front end of the locking strip 18 is provided with a linkage seat 26 used in conjunction with the pushing seat 2. When the pushing seat 2 chef's suit moves solidly to the working state, it will come into contact with the linkage seat 26. At this time, as the pushing seat 2 continues to move forward, the locking strip 18 will move forward synchronously in the slide groove 20, thereby driving the limiting plate 19 to move forward synchronously. After the limiting plate 19 moves forward, it cancels the obstruction of the limiting protrusion 14 (that is, the leftmost limit of the adjustment seat 5). At this time, under the thrust of the pressing spring 12, the limiting protrusion 14 enters the through hole 17, thereby completing the left movement of the recovery bin 8. At this time, the limiting plate 19 and the limiting protrusion 14 are engaged.

[0039] The linkage seat 26 includes an adapter plate 23 connected to the locking strip 18, a follower block 24 is provided on the upper part of the adapter plate 23, and a card interface 25 is provided on the pushing seat 2 for use with the follower block 24. When the pushing seat 2 moves to the working position, the card interface 25 will engage with the follower block 24, thereby driving the linkage seat 26 to move forward.

[0040] A slide groove 20 for the sliding of the locking bar 18 is provided on the inner side wall of the shell 1, and a groove 21 is provided at the lower part of the slide groove 20 for cooperating with the limit plate 19. A return spring 22 is provided in the slide groove 20 for pushing the locking bar 18 to the original position. The return spring 22 is located at the front end of the slide groove 20, and the end of the locking bar 18 is provided with a blind hole for plugging the return spring 22. When the toggle block 11 is pressed, the limit protrusion 14 cancels the limit on the limit plate 19. Under the thrust of the return spring 22, the locking bar 18 slides backward. At this time, the limit plate 19 moves to between the limit protrusion 14 and the through hole 17 to block it, preventing the adjustment seat 5 from moving to the left. At this time, the storage bin 7 is located below the pushing seat 2. When the pushing seat 2 moves forward, it can drive the new blade to the working position through the track groove 3.

[0041] The width of the groove 21 is greater than the width of the through hole 17, and the right edge of the groove 21 coincides with the right edge of the through hole 17. The groove 21 forms a limit for the limit plate 17, and can jointly limit the travel distance of the locking strip 18 with the slide groove 20. The through hole 17 is located in the groove 21, close to one end of the plug. When the limit plate 19 is in the initial position, the limit plate 19 can cover the through hole 17 to prevent the adjustment seat 5 from moving to the left.

[0042] Working principle: when the utility knife needs to be used, all the blades are in the storage bin 7 and the recycling bin 8 is in an empty state. Pressing the pushing seat 2 to move forward will push a blade forward to pass through the track groove 3 and enter the working position. In the process of pushing the pushing seat 2 forward, it will drive the linkage seat 26 to move forward, and then drive the limit plate 19 to slide forward. At this time, there is no obstruction between the limit protrusion 14 and the through hole 17. The adjusting seat 5 will push the adjusting seat 5 to the left under the action of the pressing spring 12, so that the limit protrusion 14 is inserted into the through hole 17. At this time, the recycling bin 8 coincides with the track groove 3, and the limit plate 19 and the limit protrusion 14 can form a secondary limit and cooperate with the limit groove 30 and the ridge 31 to limit the extended state of the blade. If the blade needs to be retracted at this time, it is only necessary to press the pushing seat 2 and slide it backward to move it to the initialization position, thereby driving the blade into the recycling bin 8. When there is no need to replace the blade, just repeat the operation.

[0043] When the blade needs to be replaced, the extension steps are as described above. When recycling, the pushing seat 2 is first slid backward to the initial position. At this time, the blade that needs to be replaced is moved to the recycling bin 8. At this time, the toggle block 11 is pressed to the right, and the adjusting seat 5 is used to drive the blade bin 4 to move to the right. At this time, the limiting protrusion 14 cancels the limitation of the limiting plate 19. Under the push of the reset spring 22, the locking strip 18 slides backward, and the limiting plate 19 moves to between the limiting protrusion 14 and the through hole 17, blocking the adjusting seat 5 from moving to the right, and fixing the adjusting seat 5 to ensure that the storage bin 7 is located below the pushing seat 2 at this time. At this time, when the pushing seat 2 slides forward, it will move a new blade to the working position to complete a blade replacement operation.

[0044] In the initial state, several new blades will be placed in the storage bin 7, while there will be no blades in the recovery bin 8. After one replacement, the blades in the storage bin 7 will enter the recovery bin 8. After all the blades in the storage bin 7 are transferred to the recovery bin 8, the protective cover 28 is opened, the blade bin 4 is taken out, turned 180 degrees and placed on the adjustment seat 5 again, with the used end facing the working position. The above two steps are repeated until both ends of the blades in the blade bin 4 are worn or damaged. After the blade bin 4 is removed, the blades are replaced in batches.

[0045] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is merely for ease of description and does not indicate or imply that the device or element described must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0046] Furthermore, it should be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0047] The term "comprise" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, article, or apparatus / device.

[0048] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A utility knife with a blade replacement and recycling function, comprising a housing (1) for placing a blade, a push seat (2) for pushing the blade being provided on the upper portion of the housing (1), characterized in that: A track groove (3) for blade displacement is provided inside the housing (1), and a blade compartment (4) for storing blades is provided at the end of the track groove (3); An adjustment seat (5) for adjusting the position of the blade magazine (4) is provided at the bottom of the housing (1), and a locking structure for use with the adjustment seat (5) is provided on the side wall of the housing (1).

2. The utility knife with blade replacement and recycling function according to claim 1, characterized in that: A partition (6) is provided in the middle of the blade bin (4), and the partition (6) divides the blade bin (4) into a storage bin (7) and a recovery bin (8). The inner side walls of the storage bin (7) and the recovery bin (8) are both provided with arc-shaped spring pieces (9) for tightening the blades.

3. The utility knife with blade replacement and recycling function according to claim 1, characterized in that: The adjustment seat (5) includes a base plate (10), a lower portion of the base plate (10) is provided with a toggle block (11) extending to the outside of the shell (1), a side wall of the toggle block (11) is provided with a pressing spring (12) connected to the shell (1), and baffles (13) are provided on both sides of the base plate (10) and are in contact with the side walls of the blade magazine (4), wherein a limiting protrusion (14) used in conjunction with a locking structure is provided on the outer side wall of the baffle (13) away from the pressing spring (12).

4. The utility knife with blade replacement and recycling function according to claim 3, characterized in that: The upper surface of the base plate (10) is provided with a plug-in board (15) connected to the blade magazine (4), and the bottom of the blade magazine (4) is provided with a plug-in slot (16) corresponding to the position of the plug-in board (15).

5. The utility knife with blade replacement and recycling function according to claim 4, characterized in that: There are two plug-in boards (15) and they are respectively located in front of and behind the partition (6). The two plug-in boards (15) are coaxially distributed with the partition (6).

6. The utility knife with blade replacement and recycling function according to claim 3, characterized in that: A through hole (17) corresponding to the position of the limiting protrusion (14) is provided on the side wall of the housing (1).

7. The utility knife with blade replacement and recycling function according to claim 6, characterized in that: The locking structure comprises a locking strip (18) slidably arranged on the inner wall of the housing (1); a limiting plate (19) located between the through hole (17) and the limiting protrusion (14) is arranged at the lower part of the locking strip (18); and a linkage seat (26) used in conjunction with the pushing seat (2) is arranged on the inner side of the front end of the locking strip (18).

8. The utility knife with blade replacement and recycling function according to claim 7, characterized in that: The linkage seat (26) includes an adapter plate (23) connected to the locking strip (18), a follower block (24) is provided on the upper portion of the adapter plate (23), and a card interface (25) used in conjunction with the follower block (24) is provided on the pushing seat (2).

9. The utility knife with blade replacement and recycling function according to claim 7, characterized in that: A sliding groove (20) for the locking strip (18) to slide is provided on the inner side wall of the housing (1), a groove (21) for cooperating with the limiting plate (19) is provided at the lower part of the sliding groove (20), and a return spring (22) for pushing the locking strip (18) to the original position is provided in the sliding groove (20).

10. The utility knife with blade replacement and recycling function according to claim 9, characterized in that: The width of the groove (21) is greater than the width of the through hole (17), and the right edge of the groove (21) coincides with the right edge of the through hole (17).

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