Protective cover and skin preparation knife comprising same

Abstract

The utility model discloses a protective cover and a skin preparation knife comprising the same, and the protective cover comprises a top plate which is an arc-shaped plate with the left side and the right side bent downwards; the front baffle is vertically fixed below the front end of the top plate; the rear baffle is vertically fixed below the rear end of the top plate; the two front limiting plates are vertically fixed to the left lower end and the right lower end of the front baffle correspondingly; the two rear limiting plates are vertically fixed to the left lower end and the right lower end of the rear baffle correspondingly; the left limiting plate is vertically fixed below the left end of the top plate; the right limiting plate is vertically fixed below the right end of the top plate; the two lower limiting plates are transversely fixed to the lower end of the left limiting plate and the lower end of the right limiting plate correspondingly. According to the skin preparation knife, after the protective cover is installed, limiting can be formed all around, and it can be effectively guaranteed that the protective cover for transporting the skin preparation knife does not fall off; the safety degree is high, mounting and dismounting are convenient, operation is easy, time and labor are saved, the structure is simple, and cost is low.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a protective cover and a skin preparation knife containing the cover. Background Technology

[0002] Currently, existing protective covers for scalpels, such as Figure 1 As shown, most protective caps are directly attached to the leather trimmer. Due to variations in molding process and temperature, the size of the protective cap has some error, resulting in inconsistent tightness when the cap and trimmer are fastened. Loose caps may detach or open during transport due to strong bumps, exposing the internal blade. Operators may easily cut their fingers if they don't notice the cap is loose when handling the trimmer. Therefore, a protective cap and a trimmer containing it were designed to solve these problems.

[0003] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of this utility model and facilitating understanding by those skilled in the art. It should not be assumed that these technical solutions are known to those skilled in the art simply because they have been described in the background section of this utility model. Utility Model Content

[0004] To overcome the shortcomings of the prior art, the purpose of this utility model is to provide a protective cover and a leather preparation knife containing it.

[0005] To achieve the above and other related objectives, the technical solution provided by this utility model is: a protective cover, comprising:

[0006] The top plate is an arc-shaped plate that curves downwards on both the left and right sides;

[0007] A front baffle, which is vertically fixed below the front end of the top plate;

[0008] A rear baffle, which is vertically fixed below the rear end of the top plate;

[0009] Two front limiting plates are provided and are respectively vertically fixed to the lower left and lower right ends of the front baffle;

[0010] Two rear limiting plates are provided and are respectively vertically fixed to the lower left and lower right ends of the rear baffle.

[0011] A left limiting plate, which is vertically fixed below the left end of the top plate;

[0012] A right limiting plate, which is vertically fixed below the right end of the top plate;

[0013] The lower limit plate has two parts, which are respectively horizontally fixed to the lower ends of the left limit plate and the right limit plate.

[0014] Furthermore, both the front baffle and the rear baffle are arc-shaped, and their width gradually increases from the middle to both ends. In this design, the front baffle and the rear baffle reinforce the overall structure, and their design, which is narrow in the middle and wide on the sides, facilitates plastic deformation during the assembly and disassembly of the top plate.

[0015] Furthermore, the top plate, front baffle, rear baffle, front limiting plate, rear limiting plate, left limiting plate, right limiting plate, and lower limiting plate are all integrally formed. In this design, the integrated structural design can improve the overall strength and stability of the structure.

[0016] Furthermore, the top plate is made of plastic. In this design, the top plate is made of plastic, which has good plasticity and is easy to restore to its original shape, reducing deformation of the body caused by disassembly and assembly.

[0017] Furthermore, the thickness of the top plate is 0.3mm to 1mm. In this design, the top plate is made of a thin plate, which allows for better assembly and disassembly deformation.

[0018] This utility model also provides a leather preparation knife, including the protective cover described in any of the above technical solutions; the leather preparation knife also includes a knife holder, a blade, and an inner cover plate, the blade is detachably disposed above the knife holder, the inner cover plate is detachably disposed above the blade, and the protective cover is sleeved on top of the inner cover plate. In this solution, the leather preparation knife is further sleeved with a protective cover outside the inner cover plate, which can provide better protection for the leather preparation knife.

[0019] Furthermore, the upper end of the tool holder is provided with a mounting post, the middle of the mounting post is provided with an insertion hole, the blade is sleeved on the mounting post, and the lower end of the inner cover plate is provided with a pin corresponding to the insertion hole, the pin being detachably disposed within the insertion hole. In this design, the tool holder, blade, and inner cover plate are detachably connected by the mounting post and the pin, facilitating the installation and replacement of the blade.

[0020] Furthermore, both the left and right sides of the tool holder are provided with protruding edges, which are engaged with the lower limit plate. In this design, the protruding edges are engaged with the lower limit plate and are also restrained by the front limit plate, rear limit plate, left limit plate, and right limit plate, thus maintaining structural stability and preventing the protective cover from loosening.

[0021] Furthermore, the upper center of the inner cover plate is provided with a concave surface, and both sides of the concave surface are provided with downward inclined surfaces. In this design, the concave surface at the upper end of the inner cover plate can match the shape of the protective cover when pressed down, thus serving to bear the pressure.

[0022] Furthermore, both the outer surface of the convex edge and the inclined surface are outwardly convex curved surfaces. In this design, the curved surface has a guiding function, facilitating its engagement with the top plate of the protective cover and providing guidance during assembly and disassembly.

[0023] Due to the application of the above technical solution, the beneficial effects of this utility model compared with the prior art are as follows:

[0024] The protective cover and the spare knife containing it designed by this utility model have a limit function in all directions after the protective cover is installed, which can effectively ensure that the protective cover of the spare knife will not fall off during transportation; it has a high degree of safety, is easy to install and remove, is simple to operate, saves time and effort, has a simple structure, and is low in cost. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a traditional protective cover structure;

[0026] Figure 2 This is a schematic diagram of the protective cover structure of this utility model. Figure 1 (Forward view);

[0027] Figure 3 This is a schematic diagram of the protective cover structure of this utility model. Figure 2 (Rear view);

[0028] Figure 4 This is a schematic diagram of the overall structure of the skin preparation knife of this utility model;

[0029] Figure 5 This is a schematic diagram of the inner cover plate structure of this utility model;

[0030] Figure 6 This is a schematic diagram of the protective cover and knife holder before installation of this utility model;

[0031] Figure 7 This is a schematic diagram of the structure of the protective cover and the knife holder before they are removed from this utility model.

[0032] In the attached diagrams above, 1 is the top plate; 2 is the front baffle; 3 is the rear baffle; 4 is the front limiting plate; 5 is the rear limiting plate; 6 is the left limiting plate; 7 is the right limiting plate; 8 is the lower limiting plate; 9 is the knife holder; 10 is the blade; 11 is the inner cover plate; 12 is the mounting post; 13 is the insertion hole; 14 is the pin; 15 is the protruding edge; 16 is the concave surface; and 17 is the inclined surface. Detailed Implementation

[0033] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0034] It should be noted that in the description of this utility model, 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, or the orientation or positional relationship commonly used when the utility model product is in use. These terms are used only for the convenience of describing this utility model and for 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. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. The terms "horizontal," "vertical," and "suspended," etc., do not indicate that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0035] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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.

[0036] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0037] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0038] Example 1:

[0039] See appendix Figure 2 and attached Figure 3 As shown, this embodiment provides a protective cover, including:

[0040] Top plate 1 is an arc-shaped plate that curves downwards on both the left and right sides; top plate 1 is made of plastic. The plastic material of top plate 1 provides good plasticity, making it easy to return to its original shape and reducing deformation caused by disassembly and assembly. The thickness of top plate 1 is 0.3mm~1mm. Top plate 1 has thicknesses of 0.3mm, 0.5mm, 0.8mm, and 1mm. The use of a thin plate in top plate 1 allows for better handling of deformation during disassembly and assembly.

[0041] In some other embodiments, the material of the top plate 1 is not limited to plastic; any material that allows for plastic deformation during the installation and removal of the protective cover, such as shape memory alloys, can be used.

[0042] The front baffle 2 is vertically fixed below the front end of the top plate 1; the rear baffle 3 is vertically fixed below the rear end of the top plate 1. Both the front baffle 2 and the rear baffle 3 are arc-shaped, and their width gradually increases from the middle to both ends. The front baffle and the rear baffle 3 reinforce the overall structure, and both adopt a design that is narrow in the middle and wide on the sides, which facilitates plastic deformation during the assembly and disassembly of the top plate 1.

[0043] Two front limiting plates 4 are provided and vertically fixed to the lower left and lower right ends of the front baffle 2, respectively; two rear limiting plates 5 are provided and vertically fixed to the lower left and lower right ends of the rear baffle 3, respectively; a left limiting plate 6 is vertically fixed below the left end of the top plate 1; a right limiting plate 7 is vertically fixed below the right end of the top plate 1; and two lower limiting plates 8 are provided and horizontally fixed to the lower ends of the left limiting plate 6 and the right limiting plate 7, respectively. In some embodiments, the top plate 1, front baffle 2, rear baffle 3, front limiting plate 4, rear limiting plate 5, left limiting plate 6, right limiting plate 7, and lower limiting plate 8 are all integrally formed. This integrated structural design can improve the strength and stability of the overall structure.

[0044] Example 2:

[0045] See appendix Figure 4 As shown, this embodiment provides a skin preparation knife, including the protective cover as in Embodiment 1, and also includes a knife holder 9, a blade 10, and an inner cover plate 11. The blade 10 is detachably disposed above the knife holder 9, and the inner cover plate 11 is detachably disposed above the blade 10. The protective cover is fitted over the inner cover plate 11. The protective cover is also fitted over the inner cover plate 11 of the skin preparation knife, which can provide better protection for the skin preparation knife.

[0046] The upper end of the tool holder 9 is provided with a mounting post 12, and the middle part of the mounting post 12 is provided with a socket 13. The blade 10 is sleeved on the mounting post 12. The lower end of the inner cover plate 11 is provided with a pin 14 corresponding to the socket 13. The pin 14 is detachably installed in the socket 13. The tool holder 9, the blade 10 and the inner cover plate 11 are detachably connected by the mounting post 12 and the pin 14, which facilitates the installation and replacement of the blade 10. The left and right sides of the tool holder 9 are provided with protruding edges 15, which are engaged with the lower limit plate 8. The protruding edges 15 are engaged with the lower limit plate 8, and are also restrained by the front limit plate 4, the rear limit plate 5, the left limit plate 6 and the right limit plate 7, which can maintain the stability of the structure and prevent the protective cover from loosening.

[0047] See appendix Figure 5 As shown, the upper end of the inner cover plate 11 has a concave surface 16 in the middle, and downward inclined surfaces 17 are provided on both sides of the concave surface 16, forming two edges between the inclined surfaces 17 and the concave surface 16. The concave surface 16 at the upper end of the inner cover plate 11 can match the shape of the protective cover when pressed down, thus bearing the pressure. The outer surface of the convex edge 15 and the inclined surfaces 17 are both outwardly convex curved surfaces. The curved surfaces have a guiding function, facilitating the fit with the top plate 1 of the protective cover and providing guidance during assembly and disassembly.

[0048] How to use the protective cover:

[0049] During installation, press down on the protective cover of the leather trimmer. Because the middle of the protective cover is relatively thin, it will have some plasticity when pressed. The two sides of the protective cover will open to both sides along the inclined surface 17 of the inner cover plate 11 of the leather trimmer until the protective cover latches onto the protruding edge 15 of the trimmer's blade holder 9. The protruding edge 15 and the protective cover form a snap-fit ​​structure. Figure 6 As shown.

[0050] When removing the protective cover, press the center of the cover. The cover will bend and deform under the action of the two edges on the inner cover plate 11 of the leather trimmer. The two side clips (protective cover) will disengage from the protruding edge 15 of the trimmer's blade holder 9. At this point, the protective cover can be removed. Figure 7 As shown.

[0051] The protective cover and the spare knife containing it designed by this utility model have a limit function in all directions after the protective cover is installed, which can effectively ensure that the protective cover of the spare knife will not fall off during transportation; it has a high degree of safety, is easy to install and remove, is simple to operate, saves time and effort, has a simple structure, and is low in cost.

[0052] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A protective cover, characterized in that, include: Top plate (1), the top plate (1) is an arc-shaped plate that bends downward on both the left and right sides; Front baffle (2), the front baffle (2) is vertically fixed below the front end of the top plate (1); The rear baffle (3) is vertically fixed below the rear end of the top plate (1); Two front limiting plates (4) are provided and are respectively vertically fixed to the lower left and lower right ends of the front baffle (2); Rear limiting plate (5), there are two rear limiting plates (5) and they are respectively vertically fixed to the lower left and lower right ends of the rear baffle (3); Left limiting plate (6), the left limiting plate (6) is vertically fixed below the left end of the top plate (1); Right limiting plate (7), the right limiting plate (7) is vertically fixed below the right end of the top plate (1); The lower limit plate (8) is provided in two parts and is respectively horizontally fixed to the lower end of the left limit plate (6) and the lower end of the right limit plate (7).

2. The protective cover according to claim 1, characterized in that: Both the front baffle (2) and the rear baffle (3) are arc-shaped, and the width of both gradually increases from the middle to both ends.

3. A protective cover according to claim 1, characterized in that: The top plate (1), front baffle (2), rear baffle (3), front limiting plate (4), rear limiting plate (5), left limiting plate (6), right limiting plate (7) and lower limiting plate (8) are all integrally formed.

4. A protective cover according to claim 1, characterized in that: The top plate (1) is made of plastic.

5. A protective cover according to claim 1, characterized in that: The thickness of the top plate (1) is 0.3mm~1mm.

6. A skin preparation knife, characterized in that: The protective cover is included as described in any one of claims 1 to 5; the leather preparation knife also includes a knife holder (9), a blade (10) and an inner cover plate (11), wherein the blade (10) is detachably disposed above the knife holder (9), the inner cover plate (11) is detachably disposed above the blade (10), and the protective cover is sleeved on the inner cover plate (11).

7. A skin preparation knife according to claim 6, characterized in that: The upper end of the blade holder (9) is provided with a mounting post (12), and the middle part of the mounting post (12) is provided with a socket (13). The blade (10) is sleeved on the mounting post (12). The lower end of the inner cover plate (11) is provided with a pin (14) corresponding to the socket (13). The pin (14) is detachably disposed in the socket (13).

8. A skin preparation knife according to claim 6, characterized in that: The tool holder (9) is provided with protruding edges (15) on both the left and right sides, and the protruding edges (15) are engaged on the lower limit plate (8).

9. A skin preparation knife according to claim 8, characterized in that: The inner cover plate (11) has a concave surface (16) at the middle of its upper end, and the concave surface (16) has downward inclined surfaces (17) on both the left and right sides.

10. A skin preparation knife according to claim 9, characterized in that: The outer surface of the convex edge (15) and the inclined surface (17) are both outwardly convex curved surfaces.

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