A new shaver head

Abstract

The utility model discloses a novel shaver head belongs to personal care appliance technical field, and this head includes backplate, illumination module, connecting plate, blade mounting structure, sealing washer and second sealing washer, and the backplate inner wall is equipped with the clamping slot, and the connecting plate outer wall is fixed with second sealing washer, and the sealing washer sets up in the clamping slot, when the connecting plate is connected into the backplate, the sealing washer and second sealing washer extrude each other, and the common constitution is a composite sealing structure for sealing illumination module, and the first sealing groove of the section being triangle and the second sealing groove of the section being square are seted up on second sealing washer, and cooperate with sealing washer and form multiple sealing path. The utility model discloses through this accurate composite sealing structure, effectively blocks the water gas and immerses, has promoted the waterproof performance of head and the protection ability to internal electronic component, has strengthened the durability of product and the reliability under the dry and wet dual -purpose environment.

Description

Technical Field

[0001] This utility model relates to the field of human care products, and in particular to a novel shaving head. Background Technology

[0002] As a widely used personal care product, the core function of an electric shaver is to quickly cut hair by keeping the sharp blade close to the skin surface, so as to achieve a clean shaving effect.

[0003] To achieve the desired shaving effect, razor blades are usually designed to be extremely sharp and need to be slid in close contact with the skin surface during use. This direct contact between the sharp blade and the soft skin inevitably brings safety hazards, especially when dealing with areas with large body curves or sensitive skin. Users are prone to experiencing scratches, stinging, and other discomfort due to improper operation or slight skin undulations.

[0004] Although some existing shaving tools have protective structures in front of the blade, these structures are often quite simple in design, such as only one or a few protective ribs. They have limited effect on controlling the contact pressure and contact area between the blade and the skin, and are difficult to effectively prevent the skin from being excessively deformed under pressure and coming into contact with the sharp blade. While ensuring shaving efficiency, they fail to solve the risk of scratching the skin, resulting in poor comfort and safety during the shaving process.

[0005] Therefore, this utility model proposes a new type of shaving blade to overcome the shortcomings of the prior art. Utility Model Content

[0006] In view of the fact that the existing shaving heads have simple protective structure designs, it is difficult to effectively avoid the sharp blades from scratching the skin while ensuring shaving efficiency, resulting in insufficient comfort and safety. The present invention aims to provide a new type of shaving head with an improved structure that can effectively solve the above problems.

[0007] This utility model provides a novel shaving blade head, including a blade head back plate, an illumination module disposed on the inner side of the blade head back plate, a connecting plate, and a blade mounting structure composed of a first assembly shell and a second assembly shell, wherein the first assembly shell and the second assembly shell are snapped onto the inner wall of the connecting plate, and the blade is clamped and fixed between the first assembly shell and the second assembly shell; and a composite sealing structure for sealing the illumination module, wherein the composite sealing structure includes a groove formed in the inner wall of the blade head back plate, a sealing ring disposed in the groove, and a second sealing gasket fixedly connected to the outer wall of the connecting plate.

[0008] The composite sealing structure achieves its sealing function through a sophisticated structural fit.

[0009] Furthermore, when the connecting plate is assembled onto the inner wall of the blade back plate by snap-fit, the structure of the connecting plate exerts a compressive force on the sealing ring and the second sealing gasket, causing the sealing ring and the second sealing gasket to compress each other and undergo elastic deformation, thereby forming a composite sealing structure for sealing the lighting module between the mating interface of the connecting plate and the blade back plate.

[0010] Preferably, the second sealing gasket has a first sealing groove and a second sealing groove on its surface facing the sealing ring. The first sealing groove has a triangular cross-section, and the second sealing groove has a square cross-section. This fit between the sealing ring and the grooves of different geometric shapes can generate a complex stress distribution and multiple sealing lines during compression, which greatly enhances the reliability of the seal.

[0011] Preferably, the novel razor head further includes a first sealing gasket, which is fixedly connected to the outer wall of the second assembly shell and is squeezed when the first assembly shell and the second assembly shell are snapped together, in order to seal the interior of the blade mounting structure and prevent moisture or shaving foam from seeping into the interior of the mounting structure from the blade area.

[0012] Preferably, the blade is clamped and fixed between the first assembly shell and the second assembly shell by a magnetic structure. This magnetic structure makes the blade removal and installation process without the need for additional tools, making the operation more intuitive and convenient, and improving the user's experience in replacing the blade.

[0013] Preferably, the blade has a cutting edge at its front end, and a safety mesh is installed in front of the cutting edge. The safety mesh has multiple small mesh holes, which effectively isolate the sharp blade from the skin, while combing and guiding the hair into the cutting area, ensuring both shaving efficiency and safety.

[0014] Preferably, the novel shaving head further includes a housing and a shaving head cover. The shaving head back plate is fixedly connected to the upper surface of the housing, serving as the basic frame of the entire shaving head and the connection interface with the shaving head body. The shaving head cover is fitted over the outside of the shaving head back plate to protect the internal blade assembly and limit the shaving range, together forming the complete shape of the product.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model, by covering and installing a safety mesh in front of the blade, the safety mesh is composed of multiple spaced mesh units, which can divide the originally continuous linear cutting area of ​​the blade into multiple independent small scraping channels, so that the contact area between the blade and the skin is actively limited, avoiding instantaneous concentrated pressure and significantly reducing the risk of skin scratches. At the same time, the safety mesh performs preliminary combing and guidance of the hairs before scraping, so that the hairs can smoothly enter each mesh channel when the user pushes the blade head to move, improving scraping efficiency and uniformity.

[0017] 2. This utility model solves the problem of insufficient waterproof sealing performance of the existing shaving head, which leads to easy intrusion of water vapor and damage to internal electronic components, by setting a composite sealing structure formed by the mutual compression and cooperation of a sealing ring and a second sealing gasket between the back plate of the shaving head and the connecting plate that carries the blade. This achieves the technical effect of improving the overall waterproof and dustproof performance of the shaving head, effectively protecting the internal electronic components, and extending the service life of the product.

[0018] 3. This utility model solves the problem of insufficient sealing reliability of a single sealing surface in complex use environments by opening a first sealing groove and a second sealing groove with different cross-sectional shapes on the second sealing gasket and making them cooperate with the sealing ring. It achieves the technical effect of forming multiple and complex sealing paths, combining the dual advantages of high pressure isolation and stable sealing, making the sealing effect more reliable and durable. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a novel shaving head proposed in this utility model;

[0020] Figure 2 This is a schematic diagram of the back plate portion of a novel shaving blade head proposed in this utility model.

[0021] Figure 3 This is a schematic diagram of the blade portion of a novel shaving head proposed in this utility model.

[0022] Figure 4 This is a schematic diagram of the sealing ring structure of a novel shaving head proposed in this utility model;

[0023] Figure 5 This is a schematic diagram of the second sealing gasket part of a novel shaving head proposed in this utility model.

[0024] Legend:

[0025] 1. Housing; 2. Blade cover; 3. Lighting module; 4. Blade back plate; 5. First assembly housing; 6. Second assembly housing; 7. Blade; 8. Safety mesh; 9. Blade edge; 10. First sealing gasket; 11. Connecting plate; 12. Slot; 13. Sealing ring; 14. Second sealing gasket; 15. First sealing groove; 16. Second sealing groove. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please refer to Figures 1 to 5 This utility model provides a novel shaving head, which aims to solve the problem of insufficient waterproof sealing performance of existing shaving heads, which leads to easy water vapor intrusion and damage to internal electronic components.

[0028] The novel shaving head includes a back plate 4, with an illumination module 3 disposed inside the back plate 4 for supplemental lighting of the shaving area during use. The head also includes a connecting plate 11 and a blade 7 mounting structure composed of a first mounting shell 5 and a second mounting shell 6. The first and second mounting shells 5 and 6 are jointly engaged with the inner wall of the connecting plate 11, and the blade 7 is clamped and fixed between the first and second mounting shells 5 and 6. To achieve a reliable seal for the illumination module 3, a slot 12 for accommodating a sealing element is provided on the inner wall of the back plate 4. The connecting plate 11 is connected via a slot... The connection plate 11 is mounted on the inner wall of the cutter head back plate 4. An annular sealing ring 13 is provided inside the slot 12. At the same time, a second sealing gasket 14 is fixedly connected to the outer wall of the connecting plate 11. When the connecting plate 11 and the cutter head back plate 4 are snapped together, the structure of the connecting plate 11 will exert a compressive force on the sealing ring 13 and the second sealing gasket 14, so that the two together form a composite sealing structure for sealing the lighting module 3. This composite sealing structure can effectively prevent water vapor or small impurities from entering the interior of the cutter head back plate 4, ensuring the long-term stable operation of the lighting module 3 and its internal circuitry.

[0029] For further clarification of the aforementioned composite sealing structure, please refer to... Figure 4 and Figure 5The second sealing gasket 14 has a first sealing groove 15 and a second sealing groove 16 on its surface facing the sealing ring 13. In this embodiment, the first sealing groove 15 has a triangular cross-section, while the second sealing groove 16 has a square cross-section. When the sealing ring 13 is squeezed, a portion of it will be embedded into the triangular first sealing groove 15 and the square second sealing groove 16, respectively. This multi-level protection system, which is composed of sealing grooves of different geometric shapes and the sealing ring 13 working together, can form multiple and complex sealing paths, thereby improving the ability to block moisture intrusion.

[0030] Based on the above embodiments, the present invention may further include the following preferred technical solutions:

[0031] As a preferred embodiment, to further enhance the waterproof performance inside the blade 7 assembly, please refer to... Figure 3 A first sealing gasket 10 is also fixedly connected to the outer wall of the second assembly shell 6. When the first assembly shell 5 and the second assembly shell 6 are snapped together, the first sealing gasket 10 is squeezed between the two mating interfaces to form an independent internal seal, preventing moisture from seeping in from the blade 7 area.

[0032] As another preferred embodiment, in order to facilitate the replacement of the blade 7, the blade 7 is clamped and fixed between the first assembly shell 5 and the second assembly shell 6 by a magnetic structure. This fixing method does not require complicated tools and is easy to operate.

[0033] As another preferred embodiment, to ensure the safety and efficiency of the scraping process, please refer to... Figure 3 and Figure 5 The blade 7 has a cutting edge 9 for cutting hair at the front end, and a safety mesh 8 is installed in front of the cutting edge 9 to isolate the sharp cutting edge 9 from the skin and prevent scratches.

[0034] In another preferred embodiment, in order to form a complete product shape, the shaving head also includes a housing 1 and a blade cover 2. The blade back plate 4 is fixedly connected to the upper surface of the housing 1, forming the connection base between the grip part and the blade part of the product. The blade cover 2 is sleeved on the outside of the blade back plate 4 to protect the internal blade 7 assembly.

[0035] The working principle of this novel shaving blade head is as follows:

[0036] During assembly, the blade 7 is first placed between the first assembly shell 5 and the second assembly shell 6, and held firmly by magnetic attraction. At the same time, the first sealing gasket 10 is compressed during the snap-fit ​​process of the first assembly shell 5 and the second assembly shell 6, forming an internal seal for the blade 7 assembly. Then, the assembled blade 7 assembly is snapped and fixed to the connecting plate 11. Next, the sealing ring 13 is placed in the slot 12 of the cutter head back plate 4, and the second sealing gasket 14 is fixed to the outer wall of the connecting plate 11. Finally, the connecting plate 11 with the blade 7 assembly is snapped into the inner wall of the cutter head back plate 4. During this process, the structure of the connecting plate 11 applies pressure to the sealing ring 13 and the second sealing gasket 14 simultaneously. The sealing ring 13 is pressed into the first sealing groove 15 and the second sealing groove 16 on the second sealing gasket 14. Since the triangular and square grooves produce different deformations and stress distributions when under pressure, a multi-layered and reliable composite sealing interface is formed between the connecting plate 11 and the cutter head back plate 4.

[0037] During use, the blade 9, protected by the safety mesh 8, adheres to the skin for shaving. Even if external moisture or foam comes into contact with the blade head, it will be effectively blocked by the composite sealing structure consisting of the sealing ring 13 and the second sealing gasket 14, preventing it from penetrating into the back plate 4 of the blade head. This protects the internal lighting module 3 from the influence of a humid environment. Through this precise composite sealing structure, this invention solves the problem of easy damage to internal electronic components caused by poor sealing in existing shaving blade heads, significantly improving the product's durability and reliability in both dry and wet environments.

Claims

1. A novel shaving blade head, comprising: The back plate of the cutter head (4) is provided with a lighting module (3) on its inner side. Connecting plate (11); The first assembly shell (5) and the second assembly shell (6) are engaged together with the inner wall of the connecting plate (11). Blade (7), which is magnetically fixed between the first assembly shell (5) and the second assembly shell (6); The feature is that the inner wall of the blade back plate (4) is provided with a slot (12), the connecting plate (11) is snapped into the inner wall of the blade back plate (4), the front end of the blade (7) is machined with a cutting edge (9), and the shaving blade head also includes a safety mesh (8), the safety mesh (8) is covered and installed in front of the cutting edge (9); The shaving head also includes a sealing ring (13) disposed inside the slot (12) and a second sealing gasket (14) fixedly connected to the outer wall of the connecting plate (11).

2. The novel shaving head according to claim 1, characterized in that, When the connecting plate (11) engages with the blade back plate (4), the sealing ring (13) and the second sealing gasket (14) are compressed to form a composite sealing structure for sealing the lighting module (3) between the connecting plate (11) and the blade back plate (4).

3. The novel shaving head according to claim 2, characterized in that, The second sealing gasket (14) has a first sealing groove (15) and a second sealing groove (16) on its surface facing the sealing ring (13).

4. The novel shaving head according to claim 1, characterized in that, The shaving head also includes a first sealing gasket (10), which is fixedly connected to the outer wall of the second assembly shell (6) and forms a seal when the second assembly shell (6) and the first assembly shell (5) are in contact.

5. A novel shaving head according to claim 1, characterized in that, The blade (7) is held and fixed between the first assembly shell (5) and the second assembly shell (6) by a magnetic structure.

6. A novel shaving head according to claim 3, characterized in that, The first sealing groove (15) has a triangular cross-section.

7. A novel shaving head according to claim 3, characterized in that, The cross-section of the second sealing groove (16) is square.

8. A novel shaving head according to claim 1, characterized in that, The shaving head also includes a housing (1) and a head cover (2). The head back plate (4) is fixedly connected to the upper surface of the housing (1), and the head cover (2) is sleeved on the outside of the head back plate (4).

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