KR102594739B1 - Combined structure and shaving device - Google Patents

Abstract

Pertaining to a coupling structure and a shaving device, the coupling structure includes a first coupling member (10) and a second coupling member (20), a connecting shaft (11) is installed on the first coupling member (10), and a second coupling member (10) is provided. 2 A connection cavity 21 whose shape matches the connection shaft 11 is installed on the coupling member 20; At least two protruding fasteners 30 are installed on the connecting shaft 11, the positions of each protruding fastener 30 correspond to the connecting cavity 21, and the tip moves along the radial direction while sliding in the connecting cavity 21. ) A locking fastener 40 that can protrude and extend inward is installed, and for each locking fastener 40, an elastic member 50 is provided to forcibly slide the locking fastener 40 toward the connection cavity 21. ) is disposed, so that when the connecting shaft 11 is inserted into the connecting cavity 21, the protruding fastener 30 forces the corresponding locking fastener 40 to slide in the radial direction, thereby forming the locking fastener ( 40) is concluded. The elastic member 50 can maintain the appropriate amount of elastic force, thereby ensuring that the first coupling member 10 and the second coupling member 20 can maintain a stable connection throughout.

Description

Combined structure and shaving device

The present invention belongs to the field of personal hygiene product technology, and particularly relates to combination structures and shaving devices.

Personal hygiene products, such as shaving devices, generally include a cutter head and a handle, and a separable connection between the cutter head and the handle is mostly achieved through fastening between a fastening plate and a fastening plate base sheet. However, among the above-mentioned conventional fastening methods, if the shaving device is used for a long time, a situation may occur where the fastening plate loses its elasticity due to fatigue of use, and furthermore, it is not possible to maintain a stable fastening between the fastening plate and the base sheet. This may cause the service life of the shaving device to be shortened. Therefore, there is a need to provide a new coupling structure that can maintain a stable connection even when personal hygiene products such as shaving devices are frequently removed and used.

The purpose of the embodiments of the present application is to provide a coupling structure to solve the technical problem that personal hygiene products such as shaving devices in the prior art cannot maintain a stable connection due to frequent attachment and detachment.

On the other hand, a shaving device is provided to solve the technical problem of personal hygiene products such as shaving devices in the prior art not maintaining a stable connection due to frequent attachment and detachment.

In order to solve the above technical problems, the technical solutions adopted by the embodiments of this application are as follows:

It provides a coupling structure including a first coupling member and a second coupling member, wherein a connecting shaft is installed on at least one of the first coupling member and the second coupling member, and the first coupling member and the second coupling member are provided. A connecting cavity is installed in the other one of the two, and the shape of the connecting shaft matches the shape of the connecting cavity to enable interconnection or separation; At least two protruding fasteners that protrude and extend along a radial direction are installed on the connecting shaft, and each protruding fastener corresponds to a position in the connecting cavity and is capable of sliding along the radial direction and has a tip inside the connecting cavity. A locking fastener capable of protruding and extending is installed, and for each locking fastener, an elastic member capable of forcibly sliding the locking fastener toward the connecting cavity is disposed to move the connecting shaft into the connecting cavity. When inserted, the protruding fastener slides the corresponding locking fastener in the radial direction and is engaged with the locking fastener.

A shaving device is provided including a cutter head assembly and a handle assembly, wherein the cutter head assembly includes at least one of the first coupling member or the second coupling member of the coupling structure, and the handle assembly is one of the coupling structures. It includes another first coupling member or the second coupling member, and the cutterhead assembly and the handle assembly implement connection or separation through connection or separation between the first coupling member and the second coupling member.

Compared with the prior art, the beneficial effects of the present application are as follows: The interconnection or separation between the first coupling member and the second coupling member, which is the coupling structure of the present application, is the interconnection or separation between the coupling shaft and the coupling cavity. It is implemented through, and the interconnection or separation between the connecting shaft and the connecting cavity is implemented through fastening between the locking fastener and the protruding fastener. Among them, in the connection between the protruding fastener and the locking fastener, when the connecting shaft is inserted into the connecting cavity, the protruding fastener forces the locking fastener to slide in the radial direction, and the depth at which the connecting shaft is inserted into the connecting cavity increases. As a result, the protruding fastener releases the pressure on the locking fastener, and at the same time, under the action of the elastic force of the elastic member disposed on the locking fastener, the locking fastener slides from this area toward the connection cavity to secure the protruding fastener. By limiting, fastening between the protruding fastener and the locking fastener is achieved. When connecting or separating the protruding fastener and the locking fastener, it is implemented by pressing the locking fastener to move in the radial direction, and the elastic member used to press the locking fastener to move in the radial direction is independent. As a member with elastic force, it is not implemented through deformation of the locking fastener itself, so even if the first coupling member and the second coupling member are frequently detached, the elastic member can maintain the appropriate elasticity, and further, the first coupling member When the and the second coupling member are in a connected state, it can be ensured that a stable connection state is maintained throughout. In addition, the connection method of this combination structure is easy to implement, and during the installation process, simply apply a certain pressure when inserting the connection shaft into the connection cavity to force the locking fastener to slide along the radial direction through the protruding fastener. A connection can be implemented immediately; In the separation process, when an acting force is mainly applied to the connecting shaft and pulled along the axial direction, the locking fastener is forced to slide along the radial direction through the protruding fastener, thereby enabling immediate separation.

Since the shaving device of the embodiment of the present application uses the above coupling structure, even if the cutter head assembly and the handle assembly are frequently detached, when the first coupling member and the second coupling member are connected through the elastic member in the coupling structure, The cutter head assembly and handle assembly can be maintained in a stable connection throughout, and the overall attachment and detachment operation is very convenient and practical.

In order to more clearly explain the technical solutions in the embodiments of this application, we would like to briefly introduce the drawings necessary for describing the following embodiments or the prior art. The drawings depicted below are only some examples of the present application, and it is obvious to a person skilled in the art that other drawings may be obtained based on these drawings, provided that no creative labor is performed.
1 is a structural diagram of a coupling structure provided by an embodiment of the present application.
Figure 2 is a cross-sectional view taken along line AA in Figure 1.
Figure 3 is an exploded view 1 of the coupling structure provided by the embodiment of the present application.
Figure 4 is an exploded view 2 of the coupling structure provided by the embodiment of the present application.
Figure 5 is an exploded view 3 of the coupling structure provided by the embodiment of the present application.
Figure 6 is a structural diagram of the first coupling member of the coupling structure provided by the embodiment of the present application.
Figure 7 is a structural diagram of the second coupling member of the coupling structure provided by the embodiment of the present application.
Figure 8 is a cross-sectional view of a shaving device provided by an embodiment of the present application.
Figure 9 is a structural exploded view of a shaving device provided by an embodiment of the present application.

Hereinafter, embodiments of the present application will be described in detail, and examples of the embodiments are shown in the drawings, wherein identical or similar elements or elements with identical or similar functions are indicated by identical or similar symbols. The embodiments depicted through FIGS. 1 to 9 below are illustrative and are intended to interpret the present application and should not be construed as limiting the present application.

In the descriptions of this application, "length", "width", "top", "bottom", "front", "back", "left", "right", "vertical", "horizontal", "top" )", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are for convenience and simplification of the description of the present application. , it does not indicate or imply that the indicated device or element must necessarily have a specific orientation or be configured and operated in a specific orientation, and therefore should not be understood as limiting the present application.

In addition, terms such as "first", "second", etc. are merely for purposes of explanation and should not be understood as indicating or implying the relative importance or implicitly designating the quantity of the technical feature indicated. Accordingly, features defined as “first” and “second” may explicitly or implicitly include one or more of the above features. In the description of this application, the meaning of “multiple” means two or two or more, unless otherwise clearly and specifically limited.

In this application, unless otherwise clearly defined and limited, terms such as “mounted”, “connected”, “coupled”, “fixed”, etc. should be understood in a broad sense, for example, fixedly connected or detachably connected. It may be one, or it may form an integrated form; It may be a mechanical connection or an electrical connection; It may be directly connected, or indirectly connected through an intermediary, and may be internally communicated between two elements, or may be an interactive relationship between two elements. A person skilled in the art will be able to understand the specific meaning of the above terms in this application according to specific circumstances.

As shown in FIGS. 1 to 3, the coupling structure provided by the embodiment of the present application can be applied to personal care products such as shaving devices, and personal care products include trimmers and beauty products. It may be a device, etc. The coupling structure includes a first coupling member 10 and a second coupling member 20, and the first coupling member 10 and the second coupling member 20 are the cutterhead assembly 100 and the handle assembly 200. Can be disposed on the cutterhead assembly 100 and the handle assembly 200 of the personal hygiene product, respectively, to implement connection or separation (see FIGS. 8 and 9). The first coupling member 10 and the second coupling member 20 may be one of the cutter head assembly 100 or the handle assembly 200 in personal hygiene products, and the cutter assembly 100 and the handle assembly 200 ) may be added separately as an additional member that can connect or separate between.

Among them, as shown in FIG. 2, through-holes are provided in the first coupling member 10 and the second coupling member 20 so that their positions correspond to each other and communicate with each other, and the cutterhead assembly 100 is connected through the through hole. and other members of the handle assembly 200 can be mounted or installed through. For example, members such as the rotating shaft, connecting shaft 11, and cutter sheet can be arranged and installed through the through hole, and different structural designs are selected according to the specific method of personal hygiene products.

In addition, a connecting shaft 11 is installed on at least one of the first coupling member 10 and the second coupling member 20, and is connected to the other one of the first coupling member 10 and the second coupling member 20. Cavity 21 is installed. That is, the connecting shaft 11 is installed on the first connecting member 10, and the connecting cavity 21 is installed on the second connecting member 20; Alternatively, the connecting cavity 21 is installed in the first coupling member 10, and the connecting shaft 11 is installed in the second coupling member 20. In this embodiment, the connection shaft 11 is installed on the first coupling member 10 and the connection cavity 21 is installed on the second coupling member 20.

As shown in FIGS. 1 to 3, the shape of the connecting shaft 11 matches the shape of the connecting cavity 21 and can be connected or separated from each other. The connecting shaft 11 can be aligned with the connecting cavity 21, so that it can be ensured that no shaking or rotation that affects the use of the product occurs after the connecting shaft 11 is connected to the connecting cavity 21. , After the connection is completed, the connection shaft 11 and the connection cavity 21 can be separated by the action of an external force.

In addition, as shown in Figures 1 and 2, if the direction in which the connection shaft 11 and the connection cavity 21 are connected or separated is defined as the axial direction, the center line in the axial direction is the center axis line P, The central axis P mentioned above or below is all referenced to this, and the direction perpendicular to the axial direction is defined as the radial direction. Among them, at least two protruding fasteners 30 that protrude along the radial direction are installed on the connecting shaft 11, and are installed in the connecting cavity 21 along the radial direction corresponding to the position of each protruding fastener 30. A locking fastener 40 that can slide and extend so that the tip protrudes into the connection cavity 21 is installed, and the locking fastener 40 is installed toward the connecting cavity 21 for each locking fastener 40. An elastic member 50 that presses for sliding movement is disposed. The elastic member 50 disposed on the locking fastener 40 can apply an elastic force to the locking fastener 40 after installation is completed through its own elastic force, and the mounting direction of the elastic member 50 is along the central axis. It is perpendicular to the direction of (P), that is, it remains consistent with the radial direction, and the elastic member 50 may form a direct or indirect connection with the locking fastener 40, and may form an intermediate member. It can also be connected using . In this way, the elastic force applied by the elastic member 50 causes the locking fastener 40 to have a force trend that moves along the radial direction throughout. Along the axial direction, when inserting the connecting shaft 11 into the connecting cavity 21, the corresponding locking fastener 40 is forced to radially rotate until the protruding fastener 30 is fastened with the locking fastener 40. direction, and the locking fastener 40 and the protruding fastener 30 after being fastened to each other also allow the first coupling member 10 and the second coupling member 20 to rotate about the central axis P. You can limit what you do. In this way, the stability of the fastening between the locking fastener 40 and the protruding fastener 30 can be maintained indirectly, making the design creative and practical.

The state after the protruding fastener 30 has been fastened with the corresponding locking fastener 40 implements an abutment joint up and down in the direction of the central axis P. In this way, the external force When no action is taken, relative positional movement of the protruding fastener 30 and the locking fastener 40 in the direction of the central axis P can be avoided.

As shown in Figures 1 to 3, the specific implementation process of connection and separation of the coupling structure is as follows. Interconnection or separation between the first coupling member 10 and the second coupling member 20 is implemented through interconnection or separation between the connection shaft 11 and the connection cavity 21, and the connection shaft 11 and Interconnection or separation between the connection cavities 21 is implemented through fastening between the locking fastener 40 and the protruding fastener 30. Among them, the connection between the protruding fastener 30 and the locking fastener 40 is such that when the connecting shaft 11 is inserted into the connecting cavity 21, the protruding fastener 30 is connected to the locking fastener 40. By pressing to slide in the radial direction, as the depth at which the connecting shaft 11 is inserted into the connecting cavity 21 increases, the pressure on the locking fastener 40 of the protruding fastener 30 is released, and at the same time, By the action of the elastic force of the elastic member 50 disposed on the locking fastener 40, the locking fastener 40 slides from here toward the connection cavity 21 to limit the protruding fastener 30, Fastening between the protruding fastener 30 and the locking fastener 40 is implemented. The connection or disconnection between the protruding fastener 30 and the locking fastener 40 is all implemented by pressing the locking fastener 40 to move along the radial direction, and moving the locking fastener 40 in the radial direction. The elastic member 50 used to press to move is a member with independent elastic force, and since it is not implemented through deformation of the locking fastener 40 itself, the first coupling member 10 and the second coupling member Frequent attachment and detachment of (20) can be effectively ensured, and the elastic member (50) can maintain the appropriate elastic force, so that when the first coupling member (10) and the second coupling member (20) are in a connected state, It allows you to maintain a stable connection at all times.

In other words, the use of attachment and detachment between the first coupling member 10 and the second coupling member 20 in the coupling structure of this embodiment does not cause fatigue in the local structure, thereby affecting its performance. For example, the elastic member 50 can still ensure its own elastic force even during long-term use, and thus can apply an elastic force that ensures that the locking fastener 40 is stably fastened to the protruding fastener 30. You can. Preferably, the elastic member 50 may be a tube-shaped spring. The locking fastener 40 and the protruding fastener 30 do not undergo deformation during specific use, and therefore, as the usage time increases, performance deterioration occurs in the locking fastener 40 or the protruding fastener 30. Therefore, there is no need to worry about affecting the stable coupling of the first coupling member 10 and the second coupling member 20.

Of course, in other embodiments, the elastic member 50 may be a plastic elastic member, and it just needs to have sufficient elastic force to press the locking fastener 50 to maintain the force directed toward the connecting cavity 21 throughout. In addition, after the plastic elastic member is compressed by the locking fastener, once the force compressing the plastic elastic member is removed, it can quickly recover and press again so that the locking fastener 50 protrudes into the connection cavity 21 and extends. there is.

Among them, the connection method of the coupling structure in this embodiment is easy to implement, and during the installation process, when the connection shaft 11 is inserted into the connection cavity 21, a certain pressure is applied to connect the connection shaft 11 through the protruding fastener 30. Immediate connection can be achieved simply by forcibly sliding the locking fastener 40 along the radial direction; In the separation process, an acting force is mainly applied to the connecting shaft 11 to pull it along the axial direction, and the locking fastener 40 is forced to slide along the radial direction through the protruding fastener 30 to achieve immediate separation. It has the advantage of being convenient to operate, and the process of use is effortless, easy and free.

Preferably, as shown in FIGS. 2 and 4 to 5, two protruding fasteners 30 are installed on the connecting shaft 11, and the two protruding fasteners 30 are symmetrical along the radial direction. Correspondingly, two locking fasteners 40 are installed in the connecting cavity 21, and the two locking fasteners 40 are installed symmetrically along the radial direction. In this way, on the one hand, it is possible to prevent relative rotation from occurring in the first coupling member 10 and the second coupling member 20 through the locking fastener 40 and the protruding fastener 30 that are fastened to each other. There is; On the other hand, the stability after the first coupling member 10 and the second coupling member 20 are connected can be clearly ensured, so there is no fear of the local position becoming loose, and at the same time, the locking fastener 40 and Since the minimum number of protruding fasteners 30 can be installed, the complexity of the coupling structure is reduced, and the structure is reduced, making production and manufacturing easier.

Of course, in other embodiments, three or more than three protruding fasteners 30 may be installed on the connecting shaft 11, and may be disposed at equal intervals along the circumferential direction around the connecting shaft 11, Correspondingly, locking fasteners 40 whose quantity and position correspond to each protruding fastener 30 may be installed in the connecting cavity 21, and even if designed in this way, the first coupling member 10 and the second coupling member 10 may be installed in the connecting cavity 21. 2 Even if the coupling member 20 is frequently detached and used, it can be clearly guaranteed that stability after connection is not affected.

In this embodiment, as shown in FIGS. 1 to 3, at least one trimming plane 12 is installed on the connecting shaft 11, is aligned with each trimming plane 12 on the connecting cavity 21, and is connected to the connecting shaft 11. A position limiting plane (22) is installed to limit rotation of (11) about the central axis (P) within the connecting cavity (21). The coupling structure in the connected state has at least one trimming plane 12 and one position limiting plane 22 arranged to face each other. When there is an external force that presses the first coupling member 10 and the second coupling member 20 to rotate relative to the central axis P, the position limiting plane 22 and the trimming plane 12 By limiting each other, it is possible to prevent the first coupling member 10 and the second coupling member 20 from rotating relative to each other, and thus the relative rotation of the first coupling member 10 and the second coupling member 20 can be prevented. The occurrence of rotation may affect the stability of the connection between them or prevent local parts on the first coupling member 10 and the second coupling member 20 from being damaged.

Preferably, as shown in Figure 2, the shape of the connecting shaft 11 and the connecting cavity 21 is a circular structure, and the trimming plane 12 may be formed on the outer wall of the connecting shaft 11, and the location The limiting plane 22 may be formed on the inner wall of the connecting cavity 21.

More preferably, as shown in FIGS. 6 and 7, the number of trimming planes 12 is two, and the two trimming planes 12 are installed symmetrically in the radial direction. In the same way, the position limiting plane 22 ) is also two in number, and the two position limit planes 22 are installed symmetrically in the radial direction. In this way, the circular connecting shaft 11 and the connecting cavity 21 have a round rectangular shape similar to a stadium (gymnastics center) in which two trimming planes 12 and two position limiting planes 22 are installed, respectively. form

In this embodiment, as shown in FIG. 3, at least one protruding fastener 30 is installed on one trimming plane 12, preferably, a protruding fastener (30) on each trimming plane 12. 30) is installed, a locking fastener 40 is installed on each position limiting plane 22, and the trimming plane 12 is installed in a spatial area at the location of the trimming plane 12 on the outer wall of the connecting shaft 11. can be enlarged, and an installation space where the protruding fastener 30 can be more easily placed is provided for installation of the protruding fastener 30. In the same way, at least one locking fastener 40 is installed on one position limitation plane 22, and the installation of the position limitation plane 22 is performed at the position of the position limitation plane 22 on the inner wall of the connection cavity 21. The space area can be increased, providing an installation space where the locking fastener 40 can be more easily placed for installation of the locking fastener 40. In addition, the installed trimming plane 12 corresponds to the position limiting plane 22, and when the connecting shaft 11 needs to be inserted into the connecting cavity 21, the trimming plane 12 and the position limiting plane 22 are connected to each other. By implementing positioning in advance, alignment between the protruding fastener 30 and the locking fastener 40 can be immediately realized by simply aligning the trimming plane 12 with the position limiting plane 22. If the connecting shaft 11 is inserted into the connecting cavity 21 without the need to individually correspond to the protruding fastener 30 and the locking fastener 40, the protruding fastener 30 and the locking fastener 40 Finally, the conclusion can be implemented.

In this embodiment, as shown in FIG. 2, the locking fastener 40 is provided with a protruding fastener 30 between the tip that protrudes and extends into the connecting cavity 21 and the bottom of the connecting cavity 21. A lower limit area 41 for storage is formed. The lower limit area 41 is mainly intended to limit the positional movement of the protruding fastener 30 along the axial direction. The position limit height of the lower limit area 41 is the distance between the bottom surface of the locking fastener 40 and the bottom wall of the connection cavity 21. When the connecting shaft 11 is completely inserted into the connecting cavity 21, the protruding fastener 30 is accommodated within the lower limit area 41, and the position limit height of the lower limit area 41 is the upper end of the protruding fastener 30. Slightly larger than the thickness between the face and the bottom face. In this way, the lower limit area 41 is just suitable for receiving the protruding fastener 30, and the lower surface of the locking fastener 40 is intended to limit the upper surface of the protruding fastener 30, and the connection cavity The bottom wall of (21) is for limiting the bottom surface of the protruding fastener (30). In this way, positional movement in the axial direction (towards the bottom surface of the locking fastener 40 or the bottom wall of the connection cavity 21) occurs in a state in which the protruding fastener 30 is not affected by external force. It can be prevented.

In addition, as shown in FIG. 2, the upper limit for accommodating the tip protruding and extending into the connection cavity 21 of the locking fastener 40 while located above the protruding fastener 30 on the connecting shaft 11 Area 31 is installed. The upper limit area 31 is mainly intended to limit positional movement of the locking fastener 40 along the axial direction. The position limit height of the upper limit area 31 is the distance between the upper surface of the protruding fastener 30 and the step surface located above the protruding fastener 30 formed after the trimming plane 12 is installed on the connecting shaft 11. When the connecting shaft 11 is completely inserted into the connecting cavity 21, the locking fastener 40 is accommodated within the upper limit area 31, and the position limit height of the upper limit area 31 is the upper end of the locking fastener 40. Slightly larger than the thickness between the face and the bottom face. In this way, the upper limit area 31 is just suitable for receiving the locking fastener 40, and the upper surface of the protruding fastener 30 is intended to limit the lower surface of the locking fastener 40 and connect. The stepped surface located above the protruding fastener 30, which is formed after the trimming plane 12 is installed on the shaft 11, is intended to limit the upper surface of the locking fastener 40. In this way, the locking fastener 40 is not affected by an external force, and the protruding fastener is formed after installing the trimming plane 12 in the axial direction (on the upper surface of the protruding fastener 30 or on the connecting shaft 11). It is possible to prevent positional movement toward the staircase located above the sphere (30).

As shown in FIG. 2, through the installation of the upper limit area 31 and the lower limit area 41, the locking fastener 40 and the protruding fastener 30 are fastened to each other and then form an engaged state. This is similar to the engagement between the female and male teeth of a zipper, so the stability of the connection is very excellent. In the absence of an external force in the axial direction, will the locking fastener 40 and the protruding fastener 30 be separated? There is no need to worry, and furthermore, stability after the connection between the first coupling member 10 and the second coupling member 20 is completed can be effectively guaranteed.

At the same time, the installation of the upper limit area 31 and the lower limit area 41 also has a function of indicating whether the connecting shaft 11 and the connecting cavity 21 are connected in place. When inserting the connecting shaft 11 into the connecting cavity 21, depending on the depth at which the connecting shaft 11 is continuously inserted into the connecting cavity 21, the protruding fastener 30 is moved to the lower limit area through the feeling of the hand. It is possible to determine whether the lower limit position of (41) (i.e., the bottom wall of the connection cavity 21) is contacted, and at the same time, when an axial force is applied to the connection shaft 11 in the opposite direction, it protrudes by feeling with the hand. It can be determined whether the fastener 30 has reached the upper limit position of the lower limit area 41 (i.e., the lower surface of the locking fastener 40), thereby ensuring that the connecting shaft 11 and the connecting cavity 21 are in place. You can determine whether it is properly connected.

Of course, in the above operation process, it is also determined by the feeling of the hand whether the locking fastener 40 has reached the lower limit position of the upper limit area 31 (the upper surface of the protruding fastener 30) and at the same time, When an axial force is applied to the connecting shaft 11, the locking fastener 40 is moved to the upper limit position of the upper limit area 31 (i.e., after installing the trimming plane 12 on the connecting shaft 11). It is possible to determine whether the formed protruding fastener 30 is in contact with the step surface located above, and thus it is possible to determine whether the connector 11 and the connection cavity 21 are accurately connected in place.

In addition, the installation of the upper limit area 31 and the lower limit area 41 can be implemented using the position limiting plane 22 and the trimming plane 12, respectively, so there is no need for separate design and the structure is prevented from becoming complicated. The advantages of the conventional structure can be effectively utilized, and the upper limit area 31 and the lower limit area 41 can be formed with a further optimized design.

Preferably, as shown in FIGS. 4 and 5, each protruding fastener 30 and each locking fastener 40 are wedge-shaped, that is, the tip of the protruding fastener 30 has a constant conical tip and locks. The tip of the fastener 40 also has a certain conical tip. After the protruding fastener 30 having a wedge-shaped structure and the locking fastener 40 having a wedge-shaped structure are fastened to each other, when an acting force is applied in the axial direction, the protruding fastener 30 is separated from the locking fastener 40. This allows the connection between the locking fastener 40 and the protruding fastener 30 to be released.

In this embodiment, as shown in FIGS. 2 and 4 to 5, the tip protruding and extending into the connection cavity 21 of each locking fastener 40 has the upper and lower surfaces along the central axis P. A chamfered arcuate surface 42 is installed on all surfaces. Specifically, the installation of the chamfered arcuate surface 42 on the locking fastener 40 is mainly intended to reduce contact with the protruding fastener 30 and generate friction when moving in the axial direction. When the connecting shaft 11 is inserted into the connecting cavity 21, the protruding fastener 30 comes into contact with the upper surface of the locking fastener 40, and when an application force is continuously applied, the protruding fastener 30 By pressing the upper surface of the locking fastener 40, the locking fastener 40 is forced to slide in the radial direction, and by the action of the chamfered arc surface 42, the protruding fastener 30 and the chamfered circle are Mutual sliding movement between the arc surfaces 42 can be more easily implemented, and furthermore, the locking fastener 40 is elastic until the connecting shaft 11 is inserted into the connecting cavity 21 and is properly connected to the connecting cavity 21. By compressing the member 50, radial position movement can be more easily implemented. When it is necessary to disconnect the connection between the connection shaft 11 and the connection cavity 21, apply force toward the outside and pull out the connection shaft 11. Likewise, at this time, the protruding fastener 30 on the connection shaft 11 ) is in contact with the bottom surface of the locking fastener 40, forcing the locking fastener 40 to slide in the radial direction. In this case, the protruding fastener is still formed by the action of the chamfered arcuate surface 42. Mutual sliding movement can be more easily implemented between the sphere 30 and the chamfered circular surface 42, and furthermore, the locking fastener 40 is elastic until the connecting shaft 11 is completely pulled out from the connecting cavity 21. By compressing the member 50 to realize a radial positional movement, the connecting shaft 11 is separated from the connecting cavity 21.

In other words, if the chamfered arc surface 42 is installed on the upper and lower surfaces of the tip that protrudes and extends inside the connecting cavity 21 of the locking fastener 40, the connecting shaft 11 and the connecting cavity 21 ) It is advantageous for connection and separation operations, increases convenience of use, and has strong practicality.

In other embodiments, among the protruding fasteners 30 and the locking fasteners 40 that correspond to each other, at least one outer end of the protruding fasteners 30 and the locking fasteners 40 has a rectangular structure, and the protruding fasteners 30 and 40 have a rectangular structure. The outer end of the other one of (30) and the locking fastener (40) has a circular head structure, and in this way, mutual fastening of the corresponding protruding fastener (30) and the locking fastener (40) can be implemented. .

In this embodiment, the material of the locking fastener 40 and the protruding fastener 30 can be freely selected according to needs and different products, and may be, for example, a plastic member or a metal member.

In this embodiment, preferably, as shown in FIG. 6, each protruding fastener 30 may be molded integrally on the connecting shaft 11. When manufacturing and molding the connecting shaft 11, the protruding fastener 30 can be manufactured and molded in batches, that is, the protruding fastener 30 and the connecting shaft 11 have an integrated structure, and this structural design uses a protruding fastener ( 30) can effectively improve the stability. Even if the volume of the connecting shaft 11 is relatively small, the structural stability of the protruding fastener 30 can be guaranteed, and this structural design also allows the protruding fastener (30) to be installed even if installed in the axial direction of the connecting shaft 11. 30) It can be ensured that the use and performance of the device are not affected.

Specifically, when the connecting shaft 11 is injection molded from a plastic material, the protruding fastener 30 is also manufactured by injection molding as an integrated piece.

Among them, as shown in FIGS. 2, 5 and 7, a mounting cavity 23 is further installed on the first coupling member 10 or the second coupling member 20 on which the connecting cavity 21 is installed, In this embodiment, the connection cavity 21 and the mounting cavity 23 are installed simultaneously on the second coupling member 20 as an example. The mounting cavity 23 is located on the side of the connecting cavity 21 and communicates with the connecting cavity 21 through a passage hole 24, and the passage hole 24 is located inside the second coupling member 20. It is installed, and the passage hole 24 is located between the mounting cavity 23 and the connecting cavity 21. At the same time, the extension direction of the passage hole 24 is radial, the locking fastener 40 slides and is connected to the passage hole 24, and the locking fastener 40 is located at least within the passage hole 24. Based on the fact that it has a member structure and allows the locking fastener 40 to slide along the radial direction within the passage hole 24, the size of the outer ring shape of the locking fastener 40 is the passage hole ( 24), the elastic member 50 abuts between the rear end of the locking fastener 40 and the inner wall of the mounting cavity 23. That is, one end of the elastic member 50 is in contact with the inner wall of the radial far end of the mounting cavity 23, and the other end of the elastic member 50 is connected to the rear end of the locking fastener 40 (connected to the locking fastener 40). It protrudes into the cavity (21) and touches the extending end (opposite to the tip). In this way, the elastic member 50 can apply an elastic force to the locking fastener 40 to press the locking fastener 40 so that it has a sliding force toward the connecting cavity 21, In a state where the locking fastener 40 is not pressured by the protruding fastener 30, it can extend into the connection cavity 21 using some structure (for example, the tip of the locking fastener 40), In this way, when the connecting shaft 11 is completely inserted into the connecting cavity 21, the locking fastener 40 can be properly accommodated in the upper limit area 31.

When the length of the locking fastener 40 is relatively long, the length of the locking fastener 40 prevents the locking fastener 40 from completely sliding into the connection cavity 21 from the passage hole 24. It can be limited. For example, if the length of the locking fastener 40 is longer than the longest length of the relative position of the inner wall of the connecting cavity 21, the locking fastener 40 cannot completely slide into the connecting cavity 21. The locking fastener 40 may also restrict the locking fastener 40 from sliding into the connecting cavity 21 from the connecting passage through a localized irregular structural shape.

When the length of the locking fastener 40 is relatively short, the rear end side of the locking fastener 40 is perpendicular to the central axis P and comes into contact with the inner wall of the mounting cavity 23, thereby forming the locking fastener 40. A protruding block 43 is installed to limit complete sliding from the temporary passage hole 24 into the connection cavity 21. Specifically, when the elastic member 50 applies sufficient force to press the locking fastener 40 to slide toward the connection cavity 21, the protruding fastener 30 installed at the rear end of the locking fastener 40 Since it can come into contact with the inner wall of the area where the mounting cavity 23 and the passage engage, the inner wall of the mounting cavity 23 restricts the locking fastener 40 from sliding further into the connecting cavity 21. do. In this way, it can be ensured that the connection cavity 21 does not slip into the connection cavity 21.

In this way, when designing, it is possible to ensure that the locking fastener 40 does not fall off after being installed, so that it does not fall off even if the locking fastener 40 frequently slides within the passage hole 24 due to frequent use. The structural design is creative and practical.

Preferably, as shown in FIGS. 4 and 5, there are two protruding blocks 43, and the two protruding blocks 43 are installed opposite to each other (the extending direction of the two protruding blocks 43 is are opposite to each other and extend on the same straight line). In this way, it is possible to completely prevent sliding into the connection cavity 21 by implementing position restrictions for the locking fastener 40 in two positions.

Preferably, the locking fastener 40 is injection molded as a single piece using a plastic material, and the protruding block 43 and the locking fastener 40 are injection molded as a single piece.

In addition, as shown in Figures 2 and 4 to 5, a position limiting pillar 44 is further installed at the rear end of the locking fastener 40, so that the elastic member 50 is outside the position limiting pillar 44. It is installed. The position limiting pillar 44 is designed to install the elastic member 50. The elastic member 50 is preferably a tubular spring, and the spring is covered with the position limiting pillar 44, and the position limiting pillar 44 ) Through the position limitation of the spring, during the deformation process of compressing or recovering the elastic force, deformation occurs along the axial direction of the position limiting pillar 44, so on the one hand, when the spring is compressed, installation due to deformation On the other hand, when the spring recovers its elastic force after compression, the elastic force acting on the locking fastener 40 moves the locking fastener 40 in a radial direction from the passage hole 24. By sliding along, the tip of the locking fastener 40 is made to protrude and extend into the connecting cavity 21, thereby fastening the locking fastener 40 with the protruding fastener 30 on the connecting shaft 11. It can be implemented.

Preferably, the position limiting pillar 44 is also injection molded integrally with the locking fastener 40. The position limiting pillar 44 is arranged to extend along the longitudinal direction of the locking fastener 40.

In this embodiment, as shown in Figures 2 and 4-5, the mounting cavity 23 is an open cavity, and the open cavity has an opening. That is, an opening is formed in the mounting cavity 23, and installation of the opening facilitates assembly of the locking fastener 40 and the elastic member 50. Specifically, during assembly, the elastic member 50 covered outside the position limiting pillar 44 of the locking fastener 40 can be installed in the mounting cavity 23 through the opening, and the tip of the locking fastener 40 It can be made to protrude and extend from the passage hole 24 into the connecting cavity 21, making it easy to install and arrange the locking fastener 40 and the elastic member 50.

In addition, as shown in Figures 2 and 4 to 5, the opening area is closed with a sealing block 61, and the sealing block 61 is tightly coupled (forced fit) with the opening, forming the mounting cavity 23. By sealing, it is possible to form a closed cavity structure within the mounting cavity 23 and ensure that the elastic member 50 and the locking fastener 40 do not escape from the opening.

In addition, as shown in FIGS. 2, 4-5, and 7, when there are two and two or more mounting cavities 23, after installing one sealing fixing plate 60, If the sealing block 61 whose position corresponds to the position of each mounting cavity 23 is installed, the openings of the plurality of mounting cavities 23 can be completely sealed with one sealing fixing plate 60.

Preferably, as shown in FIG. 2, the opening of the mounting cavity 23 is installed at the bottom of the mounting cavity 23, and preferably the connecting shaft 11 is installed above the connecting cavity 21. That is, since the first coupling member 10 is located above the second coupling member 20, through this design, the opening of the mounting cavity 23 is such that the sealing block 61 is positioned above the second coupling member 10. You can avoid being interfered with by

An embodiment of the present application further provides a shaving device. Combining Figures 8 and 9, the shaving device includes a cutterhead assembly 100 and a handle assembly 200. The cutterhead assembly 100 is a member that implements work, and the handle assembly 200 is for a grip. It is a member provided on which an electric or power member is mounted. In addition, the cutterhead assembly 100 includes at least one first coupling member 10 or a second coupling member 20 of the coupling structure, and the handle assembly 200 includes another first coupling member of the coupling structure. (10) or includes a second coupling member (20). The cutterhead assembly 100 and the handle assembly 200 implement connection or separation through coupling or separation between the first coupling member 10 and the second coupling member 20.

Since the shaving device of the embodiment of the present application uses the above coupling structure, even if the cutterhead assembly 100 and the handle assembly 200 are frequently detached, the first coupling member 10 is connected through the elastic member 50 in the coupling structure. ) and the second coupling member 20 are in a connected state, the cutterhead assembly 100 and the handle assembly 200 can be maintained in a stable connection throughout, and the overall attachment and detachment operation is very convenient and practical. strong.

In other embodiments, for example, personal hygiene products such as trimmers and beauty devices also include the coupling structure, so that even if the cutter head assembly 100 and the handle assembly 200 of the personal hygiene product are frequently detached and used, the cutter It can be ensured that the stability of the connection between the head assembly 100 and the handle assembly 200 is not affected.

The above description is only a preferred embodiment of the present application, and is in no way intended to limit the present application, and any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application are all within the protection scope of the present application. Must be included.

10: First coupling member
11: connecting shaft
12: Trimming plane
20: Second coupling member
21: Connection cavity
22: Position limitation plane
23: Mounting cavity
24: Passage ball
30: Protruding fastener
31: upper limit area
40: locking fastener
41: lower limit area
42: Lake Chamford
43: Protruding block
44: Position limitation pillar
50: Elastic member
60: Sealing fixing plate
61: Sealing block
100: Cutterhead assembly
200: Handle assembly

Claims (13)

In a coupling structure including a first coupling member and a second coupling member,
A connection shaft is installed on at least one of the first coupling member and the second coupling member, and a connection cavity is installed on the other one of the first coupling member and the second coupling member, and the shape of the connection shaft is the connection cavity. Can be interconnected or separated by matching the shape of; At least two protruding fasteners that protrude and extend along a radial direction are installed on the connecting shaft, and each protruding fastener corresponds to a position in the connecting cavity and is capable of sliding along the radial direction and has a tip inside the connecting cavity. A locking fastener capable of protruding and extending is installed, and for each locking fastener, an elastic member capable of forcibly sliding the locking fastener toward the connecting cavity is disposed to move the connecting shaft into the connecting cavity. A coupling structure, wherein upon insertion, the protruding fastener slides and moves the corresponding locking fastener in the radial direction, thereby engaging the locking fastener.
According to paragraph 1,
At least one trimming plane is installed on the connecting shaft, and a position limiting plane is installed in the connecting cavity to be coupled to each of the trimming planes to limit rotation of the connecting shaft about the central axis within the connecting cavity. A bonding structure characterized by being
According to paragraph 2,
A coupling structure, wherein at least one protruding fastener is installed on the trimming plane, and at least one locking fastener is installed on the position limiting plane.
According to paragraph 1,
A coupling structure characterized in that a lower limit area for accommodating the protruding fastener is formed between a tip of the locking fastener that protrudes and extends into the connecting cavity and a bottom of the connecting cavity.
According to paragraph 1,
A coupling structure, characterized in that an upper limit area is installed on the connecting shaft, located above the protruding fastener, to accommodate a tip of the locking fastener that protrudes and extends into the connecting cavity.
According to paragraph 1,
A coupling structure wherein each of the protruding fasteners and each of the locking fasteners are wedge-shaped.
According to paragraph 1,
A coupling structure characterized in that each of the locking fasteners has a chamfered arcuate surface installed on both the upper and lower surfaces along the central axis of the tip protruding and extending into the connection cavity.
According to paragraph 1,
A coupling structure characterized in that each of the protruding fasteners is manufactured by being integrally molded on the connecting shaft.
According to paragraph 1,
A mounting cavity is further installed in the first coupling member or the second coupling member in which the connecting cavity is installed, and the mounting cavity is located on a side of the connecting cavity and communicates with the connecting cavity through a passage hole, The locking fastener is slidingly connected to the passage hole, and the elastic member is in contact between the rear end of the locking fastener and the inner wall of the mounting cavity.
According to clause 9,
A coupling structure characterized in that a protruding block is installed at the rear end of the locking fastener to restrict the locking fastener from completely sliding into the connection cavity from the passage hole by contacting the inner wall of the mounting cavity.
According to clause 9,
A coupling structure characterized in that a position limiting pillar is further installed at the rear end of the locking fastener, and the elastic member is covered on the outside of the position limiting pillar.
According to clause 9,
The coupling structure is characterized in that the mounting cavity is an open cavity, and the opening portion of the opening cavity is sealed with a sealing block.
In a shaving device including a cutter head assembly and a handle assembly,
The cutterhead assembly includes at least one of the first coupling member or the second coupling member of the coupling structure according to any one of claims 1 to 12, and the handle assembly includes the first coupling member or the second coupling member according to any one of claims 1 to 12. It includes the first coupling member or the second coupling member in the coupling structure according to any one of the above, and the cutterhead assembly and the handle assembly connect or separate the first coupling member and the second coupling member. A shaving device characterized in that connection or separation is implemented through.