Cutter with replaceable blade
The combined structure of the upper blade sheath, blade handle, lower blade sheath, and bottom grip solves the problem of inconvenient blade replacement, enabling quick assembly and disassembly and stable connection, thus improving the flexibility and safety of use.
Patent Information
- Application Number
- CN202520011920.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-01-03
AI Technical Summary
The existing knives are cumbersome to replace blades, difficult to disassemble and assemble quickly, have unstable connections, pose safety hazards, and are difficult to retrieve quickly when stored, resulting in low flexibility of use.
It adopts a combination structure of upper blade sleeve, blade handle, lower blade sleeve and bottom grip, and achieves quick disassembly and stable connection through the cooperation of positioning bolts and pins. The L-shaped grip design ensures that the equipment is not placed parallel to the placement surface, improving the flexibility of use.
It enables quick disassembly and assembly of cutting tools and stable connection, reduces the labor intensity of manual maintenance, reduces safety hazards, and improves the flexibility of use.
Smart Images

Figure CN223734928U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a tool equipment technical field especially relates to a tool with replaceable blade. BACKGROUND
[0002] Tool is more common daily necessities, and common tool generally all blade edge is exposed, or the folding, push and pull and the way of sheath sword sheath protect the blade edge, and the blade edge is exposed has certain security risk, and the folding, push and pull mode, the process is relatively complex, and most need different equipment to cooperate production.
[0003] In actual work, the tool in the prior art is more troublesome when replacing the blade, and it is difficult to quickly disassemble and assemble the tool itself and the blade, the positioning effect of the tool and the blade is poor after replacement, which causes security risks during use, and most of the time, the horizontal placement causes the difficulty in quick taking, the use flexibility of the overall equipment is low, and it cannot meet the needs of normal use.
[0004] Therefore, the utility model provides a tool with replaceable blade. UTILITY MODEL CONTENTS
[0005] The utility model aims at solving the shortcomings in the prior art, and provides a tool with replaceable blade.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a tool with replaceable blade, including upper sword sheath,
[0007] The bottom of the upper sword sheath is provided with a sword handle, and one side of the sword handle is provided with an upper blade.
[0008] The bottom of the sword handle is provided with a lower sword sheath, and the bottom of the lower sword sheath is provided with a bottom holding part.
[0009] The bottom of the bottom holding part is provided with an adjusting block, and the bottom of the adjusting block is provided with a mounting seat.
[0010] Two second mounting holes are formed in the inside of the upper sword sheath, two third mounting holes are formed in the inside of the lower sword sheath, the inside of the two second mounting holes is provided with a first positioning bolt extending to the inside of the corresponding third mounting hole, the outside of one end of the first positioning bolt extending to the inside of the lower sword sheath is provided with a limiting nut, and the upper sword sheath, the sword handle and the lower sword sheath are positioned and installed through the second mounting hole and the first positioning bolt.
[0011] In a preferred embodiment, the upper blade sleeve has two first mounting holes inside and between the two second mounting holes. Each of the two first mounting holes has a mounting pin extending into the blade handle. The upper blade sleeve and the blade handle are positioned and installed by the cooperation of the first mounting holes and the mounting pins. The top of the lower blade sleeve has two slots for mounting the mounting pins, which limit the bottom of the mounting pins.
[0012] The technical effect of adopting the above-mentioned further solution is that the upper tool sleeve and tool handle are positioned and installed by the cooperation of the first mounting hole and the mounting pin, and the bottom of the mounting pin is limited by the slot.
[0013] In a preferred embodiment, a bottom limiting plate is installed on the bottom of the bottom grip and on one side of the mounting base. The bottom of the bottom limiting plate is threadedly connected to a second positioning bolt extending into the lower blade sleeve. The bottom grip and the lower blade sleeve are positioned and installed by the cooperation of the bottom limiting plate and the second positioning bolt, which facilitates quick assembly and disassembly. The bottom grip has an L-shaped structure, which makes it easy to grip during use and facilitates normal placement, reducing the difficulty of picking it up when placed directly parallel to the placement surface. An anti-slip seat is installed on one side of the bottom grip. The bottom of the mounting base is threadedly connected to a third positioning bolt extending into the bottom grip. One end of the third positioning bolt passes through an adjustment block. The third positioning bolt is used to position and install the mounting base and the bottom grip.
[0014] The technical effect of adopting the above-mentioned further solution is that one end of the third positioning bolt passes through the adjusting block, and the third positioning bolt is used to position and install the mounting base and the bottom grip.
[0015] In a preferred embodiment, a bonding plate is installed inside the handle, which improves the stability of the device. A lower blade is installed at the bottom of the upper blade, and the upper and lower blades work together.
[0016] The technical effect of adopting the above-mentioned further solution is that it is used in conjunction with the upper and lower blades.
[0017] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0018] By configuring an upper blade sleeve, blade handle, lower blade sleeve, and bottom grip, the lower blade sleeve has two slots on its top for mounting pins during use. These slots limit the bottom of the mounting pins. A third positioning bolt is used to position the mounting base and bottom grip. A bonding plate installed inside the blade handle improves equipment stability. The lower blade is mounted at the bottom of the upper blade. The entire assembly is completed in the following order: upper blade sleeve, blade handle, bonding plate, lower blade sleeve, and bottom grip. The first positioning bolt passes through the second mounting hole. The upper tool holder and tool handle are installed once, and then the upper tool holder, tool handle, and lower tool holder are installed a second time by inserting the mounting pin through the first mounting hole. Finally, the bottom grip and lower tool holder are installed a third time by using the bottom limiting plate and the second positioning bolt. This improves the stability of the overall equipment connection, facilitates quick disassembly and assembly, and reduces the labor intensity of manual maintenance. The L-shaped structure design of the bottom grip ensures that the overall equipment is not on the same horizontal plane as the placement surface, making it easy to pick up during use, reducing the risk of accidental injury, and improving the flexibility of equipment use. Attached Figure Description
[0019] Figure 1 A front view of the overall structure of a replaceable blade cutting tool provided by this utility model;
[0020] Figure 2 A first-view exploded view of the overall structure of a replaceable blade cutting tool provided by this utility model;
[0021] Figure 3 A second-view exploded view of the overall structure of a replaceable blade cutting tool provided by this utility model;
[0022] Figure 4 This utility model provides a tool with replaceable blades. Figure 2 Enlarged schematic diagram of the structure at plate A.
[0023] Legend:
[0024] 1. Upper tool holder; 11. First mounting hole; 12. Second mounting hole; 13. Mounting pin; 14. First positioning bolt;
[0025] 2. Knife handle; 21. Upper blade; 22. Adhesive plate; 23. Lower blade; 24. Limiting nut;
[0026] 3. Lower tool sleeve; 31. Third mounting hole;
[0027] 4. Bottom grip; 41. Anti-slip seat; 42. Bottom limiting plate; 43. Second positioning bolt; 44. Adjusting block; 45. Mounting base; 46. Third positioning bolt. Detailed Implementation
[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0029] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0030] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the present invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.
[0031] like Figures 1-4As shown, this embodiment provides a technical solution: a replaceable blade knife, including an upper blade sleeve 1, a handle 2 mounted on the bottom of the upper blade sleeve 1, and an upper blade 21 mounted on one side of the handle 2; a lower blade sleeve 3 mounted on the bottom of the handle 2, and a bottom grip 4 mounted on the bottom of the lower blade sleeve 3; an adjusting block 44 mounted on the bottom of the bottom grip 4, and a mounting base 45 mounted on the bottom of the adjusting block 44; two second mounting holes 12 are provided inside the upper blade sleeve 1, and two third mounting holes 31 are provided inside the lower blade sleeve 3. A first positioning bolt 14 extending into the corresponding third mounting hole 31 is installed inside each of the two second mounting holes 12. A limit nut 24 is fitted on the outer side of the end of the first positioning bolt 14 extending into the lower blade sleeve 3. The upper blade sleeve 1, handle 2, and lower blade sleeve 3 are positioned by the second mounting holes 12 and the first positioning bolts 14. During installation and use, the entire assembly is performed in the following order: upper blade sleeve 1, blade handle 2, bonding plate 22, lower blade sleeve 3, and bottom grip 4. The upper blade sleeve 1 and blade handle 2 are installed once by passing the first positioning bolt 14 through the second mounting hole 12. The upper blade sleeve 1, blade handle 2, and lower blade sleeve 3 are installed a second time by passing the mounting pin 13 through the first mounting hole 11. The bottom grip 4 and lower blade sleeve 3 are installed a third time by using the bottom limiting plate 42 and the second positioning bolt 43. This improves the stability of the overall equipment connection, facilitates quick assembly and disassembly, and reduces the labor intensity of manual maintenance. The L-shaped structure design of the bottom grip 4 ensures that the overall equipment is not on the same horizontal plane as the placement surface, making it easy to pick up during use, reducing the risk of accidental injury, and improving the flexibility of equipment use.
[0032] Going a step further, such as Figures 1-3 As shown: Inside the upper blade sleeve 1, between the two second mounting holes 12, there are two first mounting holes 11. The two first mounting holes 11 are each fitted with a mounting pin 13 that extends into the blade handle 2. The upper blade sleeve 1 and the blade handle 2 are positioned and installed by the cooperation of the first mounting holes 11 and the mounting pin 13. The top of the lower blade sleeve 3 has two slots for mounting the mounting pin 13. The bottom of the mounting pin 13 is limited by the slots.
[0033] Going a step further, such as Figures 1-4As shown: In this solution, a bottom limiting plate 42 is installed at the bottom of the bottom grip 4 and on one side of the mounting base 45. The bottom of the bottom limiting plate 42 is threaded with a second positioning bolt 43 extending into the lower blade sleeve 3. The bottom grip 4 and the lower blade sleeve 3 are positioned and installed by the cooperation of the bottom limiting plate 42 and the second positioning bolt 43, which facilitates quick assembly and disassembly. The bottom grip 4 has an L-shaped structure, which makes it easy to grip during use and easy to place normally, reducing the difficulty of picking it up when placed directly parallel to the placement surface. An anti-slip seat 41 is installed on one side of the bottom grip 4. The bottom of the mounting base 45 is threaded with a third positioning bolt 46 extending into the bottom grip 4. One end of the third positioning bolt 46 passes through the adjusting block 44. The third positioning bolt 46 is used to position and install the mounting base 45 and the bottom grip 4.
[0034] Going a step further, such as Figures 1-3 As shown, in this solution, a bonding plate 22 is installed inside the handle 2. The stability of the equipment is improved by installing the bonding plate 22 inside the handle 2. A lower blade 23 is installed at the bottom of the upper blade 21. The upper blade 21 and the lower blade 23 are used together.
[0035] Working principle:
[0036] like Figures 1-4 As shown:
[0037] By setting up an upper blade sleeve 1, a blade handle 2, a lower blade sleeve 3, and a bottom grip 4, when in use, the top of the lower blade sleeve 3 has two slots for mounting the mounting pin 13, which limit the bottom of the mounting pin 13.
[0038] The third positioning bolt 46 is used to position and install the mounting base 45 and the bottom grip 4.
[0039] The stability of the device is improved by installing a bonding plate 22 inside the handle 2.
[0040] The bottom of the upper blade 21 is equipped with a lower blade 23, and the upper blade 21 and the lower blade 23 are used together.
[0041] The entire assembly is performed in the following order: upper blade sleeve 1, blade handle 2, bonding plate 22, lower blade sleeve 3, and bottom grip 4. The upper blade sleeve 1 and blade handle 2 are installed once by passing the first positioning bolt 14 through the second mounting hole 12. The upper blade sleeve 1, blade handle 2, and lower blade sleeve 3 are installed a second time by passing the mounting pin 13 through the first mounting hole 11. The bottom grip 4 and lower blade sleeve 3 are installed a third time by using the bottom limiting plate 42 and the second positioning bolt 43. This improves the stability of the overall equipment connection, facilitates quick assembly and disassembly, and reduces the labor intensity of manual maintenance. The L-shaped structure design of the bottom grip 4 ensures that the overall equipment is not on the same horizontal plane as the placement surface, making it easy to pick up during use, reducing the risk of accidental injury, and improving the flexibility of equipment use.
[0042] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A replaceable blade cutter, comprising an upper cutter sleeve (1), characterized in that, a handle (2) is mounted at the bottom of the upper cutter sleeve (1), and an upper blade (21) is mounted on one side of the handle (2); a lower cutter sleeve (3) is mounted at the bottom of the handle (2), and a bottom grip (4) is mounted at the bottom of the lower cutter sleeve (3); an adjusting block (44) is mounted at the bottom of the bottom grip (4), and a mounting seat (45) is mounted at the bottom of the adjusting block (44); two second mounting holes (12) are formed in the inside of the upper cutter sleeve (1), two third mounting holes (31) are formed in the inside of the lower cutter sleeve (3), a first positioning bolt (14) extending into the inside of the corresponding third mounting hole (31) is mounted in each of the second mounting holes (12), and a limiting nut (24) is sleeved on the outside of the end of the first positioning bolt (14) extending into the inside of the lower cutter sleeve (3).
2. The replaceable blade tool of claim 1, wherein: two first mounting holes (11) are formed in the inside of the upper cutter sleeve (1) between the two second mounting holes (12), and a mounting bolt (13) extending into the inside of the handle (2) is mounted in each of the first mounting holes (11).
3. The replaceable blade tool of claim 2, wherein: Two clamping grooves for mounting and using the mounting bolts (13) are formed in the top of the lower cutter sleeve (3).
4. The replaceable blade tool of claim 1, wherein: A bottom limiting plate (42) is mounted at the bottom of the bottom grip (4) on one side of the mounting seat (45), and a second positioning bolt (43) extending into the inside of the lower cutter sleeve (3) is threadedly connected to the bottom of the bottom limiting plate (42).
5. The replaceable blade tool of claim 4, wherein: The bottom grip (4) is of L-shaped structure, an anti-skid seat (41) is mounted on one side of the bottom grip (4), and a third positioning bolt (46) extending into the inside of the bottom grip (4) is threadedly connected to the bottom of the mounting seat (45).
6. The replaceable blade tool of claim 1, wherein: A clamping plate (22) is mounted in the inside of the handle (2).
7. The replaceable blade tool of claim 6, wherein: A lower blade (23) is mounted at the bottom of the upper blade (21).