Shell sealing structure and shaver

Abstract

The utility model relates to a shell sealing structure and a shaver. The shell sealing structure comprises a shell which comprises a containing cavity, and a mounting opening is formed in the first end of the shell; the first sealing element is detachably connected with the shell and is used for sealing the mounting opening; the first sealing piece comprises a main body and a sealing part, the main body is fixedly connected with the sealing part, and the sealing part is elastic and is in interference fit with the mounting opening. According to the shell sealing structure and the shaver, the assembling complexity can be reduced, and the good sealing effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to life electric appliance technical field, especially a kind of shell sealing structure and shaver. BACKGROUND

[0002] Shell sealing structure refers to the structure for making the equipment shell have the structure of preventing outside material (such as water, dust, gas, etc.) from entering inside or preventing internal medium from leaking at joint. Shell sealing structure has wide application in the field of electronic equipment, automobile and transportation tool, industrial equipment and medical equipment. The existing shell sealing structure is usually provided with sealing groove on the joint surface of shell, and sealing ring is installed in the sealing groove, and pressure is applied to the contact surface to realize sealing effect. After the sealing ring is installed in the sealing groove, it deforms under the action of pressure and fills the gap between the joint surfaces, thereby realizing sealing.

[0003] Sealing by sealing ring has wide applicability, but the installation precision of sealing ring is high during assembly. On the one hand, the installation of sealing ring needs to strictly match the size of sealing groove. If the installation is not accurate, the sealing ring may be deformed or damaged, thereby affecting the sealing performance. On the other hand, sealing ring is often used in combined sealing structure of multiple components. Each component needs to be accurately aligned, and special tools are needed to assist assembly. Therefore, the sealing assembly by sealing ring structure has high complexity, which affects the assembly efficiency. SUMMARY

[0004] Therefore, it is necessary to provide a shell sealing structure and shaver capable of improving assembly efficiency in view of the problem of high assembly complexity of the existing shell sealing structure.

[0005] A shell sealing structure, comprising:

[0006] A shell comprising a receiving cavity, the first end of the shell is provided with a mounting opening; and

[0007] A first sealing member, which is detachably connected with the shell and used for closing the mounting opening; the first sealing member comprises a main body and a sealing part, the main body is fixedly connected with the sealing part, and the sealing part has elasticity and is in interference fit with the mounting opening.

[0008] In one of the embodiments, the sealing part comprises a connecting part and a protruding part, the protruding part is located at the edge of the connecting part close to the mounting opening, and the radial dimension of the protruding part is greater than that of the connecting part.

[0009] In one of the embodiments, a flange is provided on the main body, and the radial dimension of the flange is greater than that of the protruding part.

[0010] In one of the embodiments, the sealing part is integrally formed with the main body, wherein the sealing part is made of elastic material.

[0011] In one of the embodiments, the first sealing part is detachably connected with the shell through a first fastener.

[0012] In one of the embodiments, the first fastener comprises a first bolt, and first bolt holes for the first bolt are formed on the first sealing part and the shell.

[0013] A first annular groove is arranged on the sealing surface of the first sealing part along the circumference of the first bolt hole, and a first annular protrusion is arranged on the sealing surface of the shell around the first bolt hole, the first annular protrusion is interference-fitted with the first annular groove, or a second annular protrusion is arranged on the sealing surface of the first sealing part along the circumference of the first bolt hole, and a second annular groove is arranged on the sealing surface of the shell around the first bolt hole, the second annular protrusion is interference-fitted with the second annular groove.

[0014] In one of the embodiments, the elastic material is nitrile rubber, fluororubber, silicone rubber, ethylene-propylene rubber, hydrogenated nitrile rubber, thermoplastic polyurethane elastomer, polytetrafluoroethylene, ternary ethylene-propylene rubber, or polyurethane rubber.

[0015] In one of the embodiments, a fixing part is arranged in the accommodating cavity of the shell sealing structure, and the fixing part is used for fixing the internal components accommodated in the shell; the fixing part is detachably connected with the shell through a second fastener.

[0016] In one of the embodiments, the second fastener comprises a second bolt, and second bolt holes for the second bolt are formed on the shell and the fixing part.

[0017] A third annular groove is arranged on the surface of the fixing part opposite to the inner wall of the shell around the second bolt hole, and a third annular protrusion is arranged on the inner wall of the shell around the second bolt hole, the third annular protrusion is interference-fitted with the third annular groove, or a fourth annular protrusion 142 is arranged on the surface of the fixing part opposite to the inner wall of the shell around the second bolt hole, and a fourth annular groove is arranged on the inner wall of the shell around the second bolt hole, the fourth annular protrusion 142 is interference-fitted with the fourth annular groove.

[0018] In a second aspect, a shaver is provided, which comprises the shell sealing structure as described in the first aspect or any one of the embodiments of the first aspect; the shell sealing structure is used for sealing the internal components of the shaver.

[0019] The sealing part of the first sealing member is made of elastic material and is sealed with the mounting opening of the shell through interference fit, so that the sealing part is in close contact with the surface of the shell, effectively preventing leakage of gas or liquid medium, and the fixed connection of the sealing part with the main body ensures the positioning stability of the sealing part, avoiding deviation or separation in long-term use, further improving the reliability of the seal, and the interference fit of the sealing member does not require complex installation tools or additional fasteners (such as bolts, adhesives, etc.), and does not require the installation of a sealing ring through special tools, reducing the assembly difficulty and process complexity, while improving the assembly efficiency and ensuring good sealing effect. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0021] Figure 1 A cross-sectional structure schematic diagram of a razor provided by an embodiment of the present application is shown in FIG. 1.

[0022] Figure 2 A cross-sectional structure schematic diagram of a razor provided by an embodiment of the present application is shown in FIG. 1. Figure 1 A partial enlarged view of position A in FIG. 1.

[0023] Figure 3 A cross-sectional structure schematic diagram of a razor provided by an embodiment of the present application is shown in FIG. 1.

[0024] Figure 4 A cross-sectional structure schematic diagram of a razor provided by an embodiment of the present application is shown in FIG. 1. Figure 3 A partial enlarged view of position B in FIG. 1.

[0025] Figure 5 A structure schematic diagram of a first sealing member of a shell sealing structure provided by an embodiment of the present application is shown in FIG. 4.

[0026] In order to make the above and other purposes, features, advantages and embodiments of the present application more obvious and easy to understand, the following is a description of the symbols:

[0027] 100, shell sealing structure; 110, shell; 111, accommodating cavity; 112, first annular protrusion; 114, first bolt hole; 120, first sealing member; 121, main body; 1211, flange; 122, sealing part; 1221, connecting part; 1222, protruding part; 130, first bolt; 140, fixing member; 141, second bolt hole; 142, fourth annular protrusion 142; 150, second bolt; 200, razor. DETAILED DESCRIPTION

[0028] In order to make the above objectives, characteristics and advantages of the present application more apparent, concrete embodiments of the present application will be described in detail below with reference to the drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of ways other than those specifically described herein, and the present application is not limited to the embodiments described herein as long as they do not depart from the spirit of the present application. Therefore, the present application is not limited by the following disclosed embodiments.

[0029] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0030] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0031] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0033] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only embodiment.

[0034] Figure 1 The cross-sectional structure schematic diagram of the razor provided by an embodiment of the present application is shown in the figure. Figure 2 The local enlarged view of the cross-sectional structure of the razor provided by an embodiment of the present application is shown in the figure. Figure 3 The cross-sectional structure schematic diagram of the razor provided by an embodiment of the present application is shown in the figure. Figure 4 The local enlarged view of the cross-sectional structure of the razor provided by an embodiment of the present application is shown in the figure. Figure 5 The structure schematic diagram of the first sealing element of the shell sealing structure provided by an embodiment of the present application is shown in the figure. Figures 1 to 5 The shell sealing structure 100 provided by an embodiment of the present application comprises:

[0035] The shell 110 comprises a containing cavity 111, and a mounting opening is arranged at the first end of the shell 110; and

[0036] The first sealing element 120 is detachably connected with the shell 110 and is used for closing the mounting opening; the first sealing element 120 comprises a main body 121 and a sealing part 122, the main body 121 is fixedly connected with the sealing part 122, and the sealing part 122 has elasticity and is in interference fit with the mounting opening.

[0037] The shell 110 can be an external packaging structure of an electronic product. By packaging internal components such as motors, batteries, and controllers in the shell 110, the internal components can be protected from physical damage from the outside world, and the effects of dust and moisture can be reduced, thereby improving the service life. The shell 110 can be a metal shell 110, a plastic shell 110, or a composite material shell 110, etc. The mounting opening is a passage for providing installation, connection, maintenance, or functional expansion for internal components or modules of the product. The size and shape of the mounting opening can be determined according to the size and shape of the internal components, and factors such as ease of maintenance. The first seal 120 is used to close the mounting opening after the internal components are installed or maintained, so as to prevent dust or moisture from the outside world from entering. The detachable connection can be achieved by screw connection, buckle connection, pin connection, magnetic connection, or connection through interlocking structure, etc. The first seal 120 can be a sealing cover, and the main body 121 and the sealing part 122 can be made of different materials and can also have different sizes. The main body 121 can be made of a material with high structural strength to provide structural strength for the first seal 120, and the sealing part 122 can be made of an elastic material. When the first seal 120 is connected with the shell 110, the sealing part 122 is compressed to achieve sealing, so that the processing and installation steps of the sealing ring can be omitted, the assembly complexity is reduced, and the assembly efficiency is improved.

[0038] The shell sealing structure 100 and the razor described above, the sealing part 122 of the first seal 120 is made of an elastic material and is sealed with the mounting opening of the shell 110 through interference fit, so that the sealing part 122 forms a close contact with the surface of the shell 110, which can effectively prevent the leakage of gas or liquid medium. The fixed connection of the sealing part 122 with the main body 121 can ensure the positioning stability of the sealing part 122, avoid deviation or disengagement in long-term use, and further improve the reliability of the seal. By interference fit, the sealing part does not need complex installation tools or additional fasteners (such as bolts, adhesives, etc.), and does not need to install a sealing ring through a special tool, thereby reducing the assembly difficulty and process complexity, improving the assembly efficiency, and ensuring good sealing effect.

[0039] In an exemplary embodiment, the sealing part 122 includes a connecting part 1221 and a protruding part 1222. The protruding part 1222 is located at the edge of the connecting part 1221 close to the mounting opening, and the radial dimension of the protruding part 1222 is greater than that of the connecting part 1221. The larger radial dimension of the protruding part 1222 makes it more closely contact with the sealing surface during installation, which can increase the contact pressure and form a more reliable seal. Due to the larger radial dimension, the protruding part 1222 has stronger structural rigidity and can better resist compression deformation, thereby avoiding seal failure caused by excessive compression.

[0040] In an exemplary embodiment, the main body 121 is provided with a flange 1211, and the radial dimension of the flange 1211 is greater than the radial dimension of the protrusion 1222. The area of the flange 1211 part of the main body 121 can be greater than or equal to the cross-sectional area of the shell 110. When the first seal 120 is installed on the shell 110, the flange 1211 can completely cover the installation opening, providing a support surface and a force application space for the installation of the first seal 120 and the shell 110, facilitating installation. The flange 1211 can disperse the concentrated stress during installation and operation by covering a larger surface area, and can also provide additional physical protection to protect the sealing part 122 and the internal components of the shell 110 from direct mechanical impact or vibration during device operation, thereby improving the impact resistance of the shell sealing structure 100 and the packaged electronic device.

[0041] In an exemplary embodiment, the sealing part 122 and the main body 121 are integrally formed, and the sealing part 122 is made of an elastic material. Integrally forming means that multiple functional components of a product are integrally formed during the manufacturing process through specific process means, rather than being combined through subsequent assembly or connection. This can reduce the splicing, welding or bonding process between separate components, thereby improving the integrity, strength and performance of the structure. The main body 121 can be machined first, and then the sealing part 122 can be formed on the main body 121 through processes such as injection molding. The sealing part 122 is made of an elastic material and can deform and fill gaps to achieve sealing when compressed. The main body 121 is a rigid structure or a structure that is not easily deformed, which can provide sufficient structural strength for the first seal 120, and also facilitate the assembly of the first seal 120 and the shell 110.

[0042] In an exemplary embodiment, the first seal 120 is detachably connected to the shell 110 by a first fastener. The first fastener can be a bolt or a buckle structure. The first seal 120 and the shell 110 are detachably connected by the first fastener, which not only ensures the connection strength between the two, but also allows the structure or position of the first fastener to be adjusted to apply pressure to the sealing part 122 to improve the sealing effect.

[0043] In an exemplary embodiment, the first fastener comprises a first bolt 130, and the first sealing member 120 and the housing 110 are each provided with a first bolt hole 114 for the first bolt 130 to pass through; the sealing surface of the first sealing member 120 is provided with a first annular groove along the circumference of the first bolt hole 114, and the sealing surface of the housing 110 is provided with a first annular protrusion 112 around the first bolt hole 114, the first annular protrusion 112 is in interference fit with the first annular groove, or the sealing surface of the first sealing member 120 is provided with a second annular protrusion along the circumference of the first bolt hole 114, and the sealing surface of the housing 110 is provided with a second annular groove around the first bolt hole 114, the second annular protrusion is in interference fit with the second annular groove. The annular protrusion structure and the annular groove structure are arranged around the first bolt hole 114 on the sealing surface of the first sealing member 120 and the sealing surface of the housing 110, and the interference fit of the annular protrusion structure and the annular groove structure can realize sealing at the bolt hole, and the application of compression force to the fixed member 140 and the housing 110 by the first bolt 130 can apply pressure to the annular protrusion structure and the annular groove structure, so that they are more closely matched, thereby further improving the sealing effect. Sealing through this structure can reduce the use of sealing rings, or no sealing rings are used, thereby reducing the complexity of assembly and improving assembly and production efficiency.

[0044] In an exemplary embodiment, the elastic material is nitrile rubber (NBR), fluororubber (FKM), silicone rubber, ethylene-propylene rubber, hydrogenated nitrile rubber (HNBR), thermoplastic polyurethane elastomer (TPU), polytetrafluoroethylene (PTFE), ethylene-propylene-diene rubber (EPDM), or polyurethane rubber (PU). Each of the above materials has good sealing performance, wear resistance, chemical corrosion resistance, and flexibility, and can be integrally formed with the housing 110. Among them, nitrile rubber and ethylene-propylene-diene rubber have lower production cost and are suitable for mass production, silicone rubber and fluororubber have relatively high cost but can improve durability, and in actual application, specific needs can be selected, which is not limited in the present application.

[0045] In an exemplary embodiment, the housing sealing structure 100 is provided with a fixing member 140 in the accommodating cavity 111, the fixing member 140 is used to fix the internal components accommodated in the housing 110; the fixing member 140 is detachably connected with the housing 110 through the second fastener. The fixing member 140 can be a support frame, a motor fixing member 140, a transmission mechanism fixing member 140, a battery and power module fixing member 140, or a control panel fixing member 140, etc. A plurality of internal components can be fixed by one fixing member 140, or can be fixed by a plurality of fixing members 140 in combination. The shape of the fixing member 140 can be determined according to the internal components to be fixed. The material of the fixing member 140 can be metal, plastic or organic material, etc. The fixing mode of the internal components can include one or more of bolt connection, clamping or gluing, etc.

[0046] In an exemplary embodiment, the second fastener includes a second bolt 150, and the housing 110 and the fixing member 140 are both provided with a second bolt hole 141 for passing the second bolt 150; a third annular groove is arranged around the second bolt hole 141 on the surface of the fixing member 140 opposite to the inner wall of the housing 110, and a third annular protrusion is arranged around the second bolt hole 141 on the inner wall of the housing 110, the third annular protrusion is interference-fitted with the third annular groove, or a fourth annular protrusion 142 is arranged around the second bolt hole 141 on the surface of the fixing member 140 opposite to the inner wall of the housing 110, and a fourth annular groove is arranged around the second bolt hole 141 on the inner wall of the housing 110, the fourth annular protrusion 142 is interference-fitted with the fourth annular groove. The second bolt 150 is used to fixedly connect the fixing member 140 with the housing 110. Considering the stability of installation, a plurality of second bolts 150 can be provided, which can be symmetrically or uniformly distributed at different positions of the fixing member 140, so as to avoid stress concentration and improve the firmness. The profile of the surface of the fixing member 140 opposite to the inner wall of the housing 110 can be fitted with the profile of the inner wall of the housing 110, so as to reduce the shaking. The annular protrusion structure and the annular groove structure are arranged around the bolt hole on the inner wall of the housing 110 and the fixing member 140, and the interference fit of the annular protrusion structure and the annular groove structure can realize the sealing of the bolt hole. The second bolt 150 can apply a pressing force to the fixing member 140 and the housing 110, so as to apply a pressure to the annular protrusion structure and the annular groove structure, so that they are more closely fitted, thereby further improving the sealing effect. The use of the structure for sealing can reduce the use of sealing rings, or no sealing rings are used, thereby reducing the complexity of assembly and improving the assembly and production efficiency.

[0047] In a second aspect, a shaver 200 is provided, which includes the housing sealing structure 100 as described in the above embodiments; the housing sealing structure 100 is used to seal the internal components of the shaver 200.

[0048] The shaver 200 can be an electric shaver, a rotary shaver, a reciprocating shaver, a linear shaver, a multi-functional shaver, or the like. The shaver can include a blade, a motor, a transmission mechanism, a battery, a charging system, a control system, and other internal components, which are sealed by the housing sealing structure described in the above embodiments and are installed and fixed in the housing by the fixing member. The shaver is usually small in size and difficult to control the installation precision, and therefore, when the housing sealing structure 100 is applied to the shaver 200, the assembly difficulty of the shaver can be effectively reduced, the assembly efficiency is improved, and the waterproof requirement of the shaver is well met.

[0049] The technical features of the above embodiments can be combined in any manner. To make the description concise, all possible combinations of the technical features in the above embodiments are not described, but as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the present application.

[0050] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be pointed out that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A housing seal structure, characterized by, The shell sealing structure comprises: a shell comprising a containing cavity, a first end of the shell being provided with a mounting opening; and a first sealing member detachably connected with the shell for closing the mounting opening; the first sealing member comprises a main body and a sealing part, the main body being fixedly connected with the sealing part, the sealing part being elastic and being in interference fit with the mounting opening; the sealing part and the main body are integrally formed, wherein the sealing part is made of elastic material.

2. The housing seal structure of claim 1, wherein, The sealing part comprises a connecting part and a protruding part, the protruding part being located at an edge of the connecting part close to the mounting opening, a radial dimension of the protruding part being greater than a radial dimension of the connecting part.

3. The housing seal structure of claim 2, wherein, A flange is arranged on the main body, a radial dimension of the flange being greater than the radial dimension of the protruding part.

4. The housing seal structure of claim 1, wherein, The first sealing member is detachably connected with the shell through a first fastener.

5. The housing seal structure of claim 4, wherein, The first fastener comprises a first bolt, first bolt holes for penetrating the first bolt being arranged on the first sealing member and the shell; a first annular groove is arranged on a sealing surface of the first sealing member along a circumference of the first bolt hole, a first annular protrusion is arranged on a sealing surface of the shell around the first bolt hole, the first annular protrusion being in interference fit with the first annular groove, or a second annular protrusion is arranged on the sealing surface of the first sealing member along the circumference of the first bolt hole, a second annular groove is arranged on the sealing surface of the shell around the first bolt hole, the second annular protrusion being in interference fit with the second annular groove.

6. The housing seal structure of claim 1, wherein, The elastic material is nitrile rubber, fluororubber, silicone rubber, ethylene-propylene rubber, hydrogenated nitrile rubber, thermoplastic polyurethane elastomer, polytetrafluoroethylene, ternary ethylene-propylene rubber or polyurethane rubber.

7. The housing seal structure of claim 1, wherein, A fixing member is arranged in the containing cavity of the shell sealing structure, the fixing member being used for fixing internal components contained in the shell; the fixing member is detachably connected with the shell through a second fastener.

8. The housing seal structure of claim 7, wherein, The second fastener comprises a second bolt, second bolt holes for penetrating the second bolt being arranged on the shell and the fixing member; a third annular groove is arranged on a surface of the fixing member opposite to an inner wall of the shell around the second bolt hole, a third annular protrusion is arranged on the inner wall of the shell around the second bolt hole, the third annular protrusion being in interference fit with the third annular groove, or a fourth annular protrusion is arranged on the surface of the fixing member opposite to the inner wall of the shell around the second bolt hole, a fourth annular groove is arranged on the inner wall of the shell around the second bolt hole, the fourth annular protrusion being in interference fit with the fourth annular groove.

9. A shaver characterized by The shell sealing structure is used for sealing internal components of the shaver.

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