Handheld cutting device for PU film
By designing a handheld cutting device for PU film, which uses a rotatable protective block to wrap the cutter and combines it with a laser pointer, the problem of hand cuts when cutting PU film with utility knives and scissors is solved, achieving a safe and efficient cutting effect.
Patent Information
- Application Number
- CN202422608423.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-28
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-10-28
AI Technical Summary
Existing utility knives and scissors can easily cut hands when cutting PU film, affecting work efficiency and convenience.
A handheld cutting device for PU film was designed, comprising a grip handle, a cutter, and a protective assembly. The protective assembly consists of first and second protective blocks and a laser pointer. The protective blocks are rotatable and can be locked by an adjustment assembly. The cutter is enclosed by the protective blocks, and the laser pointer is used for precise cutting.
It effectively protects hands, reduces the risk of cuts, and improves cutting accuracy and efficiency.
Smart Images

Figure CN223532512U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of PU film cutting devices, and in particular to a handheld cutting device for PU film. Background Technology
[0002] PU is an abbreviation for Polyurethane, also known as polyurethane film. PU is a non-toxic, harmless, and environmentally friendly material that is safe for human skin and widely used in clothing fabrics, medical and hygiene products, and leather. It is highly elastic and lightweight. Despite its extremely thin thickness (0.012-0.035mm), it exhibits unparalleled waterproof properties (withstanding water pressure exceeding 10,000 mm water column). Utilizing advanced technology to incorporate hydrophilic agents, the film not only possesses high waterproof performance but also excellent breathability (human sweat can freely penetrate the film).
[0003] The existing handheld cutting tools for PU film on the market are commonly used utility knives and scissors. However, when using utility knives and scissors, the sharp blades are exposed, which can easily cause hand injuries. This not only injures the workers' hands but also affects their work efficiency and daily life. Therefore, in order to solve the above problems, this utility model proposes a handheld cutting device for PU film. Utility Model Content
[0004] The purpose of this utility model is achieved through the following means: a handheld cutting device for PU film, including a grip handle, a cutter, and a protective component. The protective component is connected to the grip handle. The cutter is disposed on one side of the grip handle. The protective component is disposed on the side of the grip handle near the cutter. The protective component includes a first protective block, a second protective block, and a laser indicator. The first protective block is disposed above the cutter, and the second protective block is disposed below the cutter. Both the first and second protective blocks have through grooves near the cutter. The through grooves on the first protective block extend through the top surface of the first protective block. On both sides of the top surface of the first protective block, near the through grooves, are correspondingly provided closed covers that match the through grooves. One end of the closed cover is rotatably connected to the first protective block. The closed covers are magnetically connected to each other. The laser indicator is installed on the side of the first protective block away from the grip handle.
[0005] In the above description, as a further embodiment, the upper and lower ends of the grip handle near the first protective block are provided with connecting positions, and the ends of the first and second protective blocks near the connecting block are provided with rotating positions that match the connecting positions. The rotating positions are rotatably connected to the connecting positions. The connecting positions and rotating positions are used to provide the swinging effect of the first and second protective blocks.
[0006] In the above description, as a further embodiment, the first and second protective blocks are provided with an adjustment component near the rotation position. The adjustment component includes a torsion member and a locking block. The torsion member is located on the side of the rotation position away from the connection position, and the locking block is located on the side of the connection position away from the rotation position. The torsion member and the locking block are used to provide the effect of locking the first and second protective blocks after swinging.
[0007] In the above description, as a further embodiment, the locking block is provided with a locking stud on the side near the rotating position. The locking stud extends through the rotating position and the connecting position toward the torsion member. The torsion member is provided with an anti-slip pad on the side near the locking stud. The position of the torsion member near the locking stud is provided with a threaded hole that matches the locking stud. The side of the torsion member away from the locking stud is provided with a torsion plate.
[0008] In the above description, as a further solution, the first and second protective blocks are provided with indicator blocks near the connection position, and the connection position near the indicator blocks is provided with scales; the scales can facilitate the staff to adjust the tilt angle of the first and second protective blocks.
[0009] In a further embodiment of the above description, the middle part of the cutter is connected to the middle part of the handle near the cutter via a connecting rod. The cutter and the connecting rod are rotatably connected. The cutter has a circular structure and is used to cut the PU film.
[0010] Compared with the prior art, the beneficial effects of this utility model are: by designing a rotatable first protective block and a second protective block, the first protective block and the second protective block are respectively set above and below the cutter, which can provide a wrapping effect on the upper and lower ends of the cutter, leaving only the middle part used for cutting the film, preventing the cutter from being exposed, reducing the possibility of hand cuts, and effectively protecting the user's hands. Attached Figure Description
[0011] Figure 1 This is a three-dimensional structural diagram of a handheld cutting device for PU film according to the present invention;
[0012] Figure 2 This is a three-dimensional structural schematic diagram of a handheld cutting device for PU film according to this utility model from another perspective;
[0013] Figure 3 This is an exploded view of the structure of a handheld cutting device for PU film according to this utility model;
[0014] Figure 4 This is an exploded view of the structure of a handheld cutting device for PU film according to this utility model from another perspective;
[0015] In the diagram: 1-Holding handle, 2-Cutter, 3-First protective block, 4-Second protective block;
[0016] 5-Laser indicator, 6-Conducting groove, 7-Closed cover, 8-Connecting position, 9-Rotating position, 10-Torquering component;
[0017] 11-Locking block, 12-Locking stud, 13-Anti-slip pad, 14-Threaded hole, 15-Torsion plate;
[0018] 16-Indicator block, 17-Scale, 18-Connecting rod. Detailed Implementation
[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0020] For this embodiment, please refer to Figures 1-4 The specific implementation includes a grip handle 1, a cutter 2, and a protective component. The protective component is connected to the grip handle 1. The cutter 2 is located on one side of the grip handle 1, and the protective component is located on the side of the grip handle 1 near the cutter 2. The protective component includes a first protective block 3, a second protective block 4, and a laser pointer 5. The first protective block 3 is located above the cutter 2, and the second protective block 4 is located below the cutter 2. Both the first and second protective blocks 3 and 4 have a guide groove 6 near the cutter 2. The guide groove 6 on the first protective block 3 extends through the top surface of the first protective block 3. On both sides of the top surface of the first protective block 3, near the guide groove 6, there are corresponding closing covers 7 that match the guide groove 6. One end of the closing cover 7 is rotatably connected to the first protective block 3, and the closing covers 7 are magnetically connected to each other. The laser pointer 5 is installed on the side of the first protective block 3 away from the grip handle 1. The laser pointer model is VP300, which is a commonly used technical means in the prior art. This means is used in conjunction with this embodiment to complete the initial operation of this process.
[0021] The grip handle 1 has a connecting position 8 at both the upper and lower ends near the first protective block 3. The first protective block 3 and the second protective block 4 each have a rotating position 9 that matches the connecting position 8 at the end near the connecting block. The rotating position 9 is rotatably connected to the connecting position 8.
[0022] The first protective block 3 and the second protective block 4 are provided with an adjustment component near the rotation position 9. The adjustment component includes a torsion member 10 and a locking block 11. The torsion member 10 is located on the side of the rotation position 9 away from the connection position 8, and the locking block 11 is located on the side of the connection position 8 away from the rotation position 9.
[0023] The locking block 11 is provided with a locking stud 12 on the side near the rotating position 9. The locking stud 12 extends through the rotating position 9 and the connecting position 8 toward the torsion member 10. The torsion member 10 is provided with an anti-slip pad 13 on the side near the locking stud 12. The torsion member 10 is provided with a threaded hole 14 that matches the locking stud 12 at the position near the locking stud 12. The torsion plate 15 is provided on the side of the torsion member 10 away from the locking stud 12.
[0024] The first protective block 3 and the second protective block 4 are provided with an indicator block 16 near the connection position 8, and the connection position 8 is provided with a scale 17 near the indicator block 16.
[0025] The middle part of the cutter 2 is connected to the middle part of the handle 1 near the cutter 2 via a connecting rod 18. The cutter 2 is rotatably connected to the connecting rod 18 and has a circular structure.
[0026] The method of using this utility model is as follows: When it is necessary to cut the film, if it is only an irregular shape cut, the cutter 2 exposed between the first protective block 3 and the second protective block 4 can be used to pull the PU film toward the cutter 2 between the first protective block 3 and the second protective block 4 to achieve the effect of cutting the PU film.
[0027] If it is necessary to cut the PU film according to the specified dividing lines, the closing cover 7 on the first protective block 3 can be opened, the twisting member 10 can be loosened, the first protective block 3 and the second protective block 4 can be unlocked, and the first protective block 3 can be rotated toward the cutter 2. When the upper edge of the cutter 2 passes through the guide groove 6 and the upper edge of the cutter 2 is slightly higher than the top surface of the first protective block 3, the top surface of the first protective block 3 is attached to the PU film, and the PU film is cut by the cutter 2 which extends beyond the top surface of the first protective film. During this process, the laser indicator 5 can be turned on to observe whether the laser emitted by the laser indicator 5 is aligned with the specified dividing lines on the PU film. If they are aligned, the cutting can begin.
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0029] Furthermore, in the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0030] Finally, it should be noted that the above embodiments are merely specific implementations of this utility model, used to illustrate the technical solution of this utility model, and not to limit it. The protection scope of this utility model is not limited thereto. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this utility model. These modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A handheld cutting device for PU film, comprising a grip handle, a cutter, and a protective assembly, wherein the protective assembly is connected to the grip handle, characterized in that: The cutter is located on one side of the handle, and the protective component is located on the side of the handle near the cutter. The protective component includes a first protective block, a second protective block, and a laser indicator. The first protective block is located above the cutter, and the second protective block is located below the cutter. Both the first and second protective blocks have through grooves near the cutter. The through groove on the first protective block extends through the top surface of the first protective block. On both sides of the top surface of the first protective block, near the through grooves, there are matching closing covers. One end of the closing cover is rotatably connected to the first protective block, and the closing covers are magnetically connected. The laser indicator is installed on the side of the first protective block away from the handle.
2. The handheld cutting device for PU film according to claim 1, characterized in that: The upper and lower ends of the grip handle near the first protective block are provided with connecting positions. The ends of the first and second protective blocks near the connecting blocks are provided with rotating positions that match the connecting positions. The rotating positions are rotatably connected to the connecting positions.
3. The handheld cutting device for PU film according to claim 2, characterized in that: The first and second protective blocks are provided with an adjustment component near the rotation position. The adjustment component includes a torsion member and a locking block. The torsion member is located on the side of the rotation position away from the connection position, and the locking block is located on the side of the connection position away from the rotation position.
4. The handheld cutting device for PU film according to claim 3, characterized in that: The locking block has a locking stud on the side near the rotating position. The locking stud extends through the rotating position and the connecting position toward the torsion member. The torsion member has an anti-slip pad on the side near the locking stud. The torsion member has a threaded hole that matches the locking stud at the position near the locking stud. The torsion member has a torsion plate on the side away from the locking stud.
5. A handheld cutting device for PU film according to claim 2, characterized in that: The first and second protection blocks are provided with indicator blocks near the connection positions, and the connection positions are provided with scales near the indicator blocks.
6. The handheld cutting device for PU film according to claim 1, characterized in that: The middle part of the cutter is connected to the middle part of the handle near the cutter via a connecting rod. The cutter is rotatably connected to the connecting rod and has a circular structure.