Shaving knife with pressure sensing device

Abstract

A razor with a pressure sensing device comprises a razor head mounting base, a plurality of razor head assemblies are arranged on the razor head mounting base, the razor head assemblies are arranged on the razor head mounting base in a floatable mode, each razor head assembly is provided with a trigger piece, and the razor head mounting base is provided with a sensing piece corresponding to the trigger piece on each razor head assembly. In the process that the tool bit assemblies are stressed to descend, the triggering pieces are connected with the sensing pieces so as to prompt pressure, and the triggering pieces are arranged on the tool bit assemblies to trigger the corresponding sensing pieces on the tool bit mounting bases; therefore, under the condition that each tool bit assembly is stressed, signals can be transmitted to the control system through the independent induction piece, and the control system judges the pressure condition borne by each tool bit assembly according to the received signals.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hair trimming device, in particular to a shaving razor with pressure sensing device. BACKGROUND

[0002] In the prior art, a pressure sensor is arranged on a shaving razor to sense the force of a user when shaving. However, multiple cutter heads on a conventional shaving razor usually adopt one pressure sensing structure to realize pressure sensing, which results in that the force conditions of the cutter heads cannot be accurately determined, and the user may experience uneven force when shaving, thereby affecting the shaving effect and user experience. SUMMARY

[0003] Therefore, the present application provides a shaving razor with pressure sensing device.

[0004] To achieve the above object, the present application provides the following technical scheme. A shaving razor with pressure sensing device, comprising a cutter head mounting seat, a plurality of cutter head assemblies are arranged on the cutter head mounting seat, the cutter head assemblies are arranged on the cutter head mounting seat in a floating manner, a trigger is arranged on each cutter head assembly, and a sensing piece is arranged on the cutter head mounting seat corresponding to the trigger on each cutter head assembly, the trigger and the sensing piece are in contact during the process of the cutter head assembly descending under force, and the pressure is sensed.

[0005] Preferably, the cutter head assembly comprises at least one long hair cutter assembly and one short hair cutter assembly, the trigger comprises a long hair cutter trigger arranged on the long hair cutter assembly and a short hair cutter trigger arranged on the short hair cutter assembly, and the sensing piece on the cutter head mounting seat comprises a long hair cutter sensing piece corresponding to the long hair cutter trigger and a short hair cutter sensing piece corresponding to the short hair cutter trigger.

[0006] Preferably, the long hair cutter assembly is provided with a long hair cutter trigger positioning structure, the long hair cutter trigger is provided with a positioning portion and a trigger portion, the positioning portion is connected with the long hair cutter trigger positioning structure, the trigger portion is arranged on one side of the positioning portion close to the long hair cutter sensing piece, the central axis of the long hair cutter sensing piece intersects with the trigger portion, and the trigger portion is in contact with the positioning portion or the long hair cutter trigger positioning structure.

[0007] Preferably, the long hair cutter assembly comprises a long hair static cutter group, a long hair dynamic cutter group and a trigger positioning seat, the long hair static cutter group is provided with a long hair dynamic cutter movable slot, the long hair dynamic cutter group and the trigger positioning seat are arranged in the long hair dynamic cutter movable slot, the long hair cutter trigger positioning structure is a positioning shaft protruding from the trigger positioning seat, a positioning hole is arranged on the positioning portion, and the positioning shaft extends into the positioning hole to be connected with the positioning portion.

[0008] Preferably, the long-hair cutter trigger piece is in an integrated structure, the trigger part is protruded on the side end face of the positioning part close to the long-hair cutter sensing part and extends to the middle axis of the long-hair cutter sensing part, and intersects with the middle axis of the long-hair cutter sensing part. In the process of the long-hair cutter assembly descending under force, the trigger part of the long-hair cutter trigger piece is driven to descend synchronously by the long-hair cutter trigger piece positioning structure and contacts with the long-hair cutter sensing part.

[0009] Preferably, the long-hair cutter trigger piece is in a split structure, the long-hair cutter trigger piece comprises a cutter head connecting piece and a spring, the cutter head connecting piece is the positioning part, and the spring is the trigger part. The spring is sleeved on the long-hair cutter trigger piece positioning structure, and the two ends of the spring abut against the cutter head connecting piece and the long-hair cutter assembly respectively. In the process of the long-hair cutter assembly descending under force, the spring is driven to descend synchronously by the long-hair cutter trigger piece positioning structure and contacts with the long-hair cutter sensing part.

[0010] Preferably, the short-hair cutter assembly is provided with a short-hair cutter trigger piece positioning structure, the short-hair cutter trigger piece positioning structure comprises a buckle unit and a plug-in limiting unit, the short-hair cutter trigger piece is limited to contact with the buckle unit and the plug-in limiting unit respectively, and the short-hair cutter assembly drives the short-hair cutter trigger piece to move and contact with the short-hair cutter sensing part in the process of descending.

[0011] Preferably, the buckle unit is a buckle end protruded on the two sides of the short-hair cutter assembly, the short-hair cutter trigger piece has a short-hair cutter trigger part and a buckle part, the buckle part is formed by bending the two sides of the short-hair cutter trigger part towards the buckle end, a buckle groove is formed on the buckle part, and the buckle end extends into the buckle groove and is buckled with the buckle part.

[0012] Preferably, the plug-in limiting unit is a positioning groove formed in the bottom of the short-hair cutter assembly, the short-hair cutter trigger piece has a limiting part corresponding to the positioning groove, the limiting part is formed by bending the short-hair cutter trigger part towards the positioning groove, and the limiting part extends into the positioning groove and is connected with the short-hair cutter assembly.

[0013] Preferably, at least one of the corresponding sensing part and trigger part has elasticity.

[0014] The present application has the beneficial effect that the trigger part is arranged on each cutter head assembly to trigger the corresponding sensing part on the cutter head mounting seat, so that each cutter head assembly can transmit signals to the control system through the independent sensing part under force, and the control system can judge the pressure condition of each cutter head assembly according to the received signals. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to make the technical solutions in the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only aim to some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort.

[0016] Figure 1 is a perspective view of the present design; Figure 1 Figure 2 is a top view of the present design; Figure 3 is a structure schematic view of the present design; Figure 2 Figure 4 is a sectional view of the present design; Figure 5 is another sectional view of the present design; Figure 3 Figure 6 is a sectional view of the present design at A-A; Figure 1 Figure 7 is a sectional view of the present design at B-B; Figure 8 is a sectional view of the present design at C-C; Figure 4 Figure 9 is another sectional view of the present design; Figure 10 is a sectional view of the present design at D-D; Figure 5 Figure 11 is a sectional view of the present design at E-E; Figure 1 Figure 12 is a sectional view of the present design at F-F; Figure 13 is a sectional view of the present design at G-G; Figure 6 Figure 14 is a sectional view of the present design at H-H; Figure 1 Figure 15 is a sectional view of the present design at I-I; Figure 16 is a sectional view of the present design at J-J; Figure 7 Figure 17 is a sectional view of the present design at K-K; Figure 6 Figure 18 is a sectional view of the present design at L-L; DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without any creative effort belong to the scope of protection of the present application.

[0018] The present application will be further described below with reference to the accompanying drawings of the present application.

[0019] The present application provides the following technical solutions: Figure 1 is a perspective view of the present design; Figures 1-7The present application discloses a shaving razor with a pressure sensing device, which includes a head mounting seat 1, a plurality of head assemblies 2 arranged on the head mounting seat 1, and a trigger piece 3 arranged on each head assembly 2. An inductor 4 corresponding to the trigger piece 3 is arranged on the head mounting seat 1. The trigger piece 3 contacts the inductor 4 during the process of the head assembly 2 descending under stress, thereby prompting pressure. Specifically, in the present design, the trigger piece 3 arranged on each head assembly 2 is used to trigger the inductor 4 on the head mounting seat 1, thereby enabling each head assembly 2 to transmit signals to a control system (not shown in the figure) through an independent inductor 4 under stress. The control system determines the pressure condition of each head assembly 2 according to the received signals.

[0020] Further, the head assembly 2 includes at least one long hair cutter assembly 5 and one short hair cutter assembly 6. The trigger piece 3 includes a long hair cutter trigger piece 7 arranged on the long hair cutter assembly 5 and a short hair cutter trigger piece 8 arranged on the short hair cutter assembly 6. The inductor 4 on the head mounting seat 1 includes a long hair cutter inductor 9 corresponding to the long hair cutter trigger piece 7 and a short hair cutter inductor 10 corresponding to the short hair cutter trigger piece 8. Specifically, in the present embodiment, the long hair cutter assembly 5 and the short hair cutter assembly 6 are designed for different hair lengths. The long hair cutter assembly is suitable for shaving long hair, while the short hair cutter assembly is suitable for shaving short hair or performing fine trimming. By arranging independent long hair cutter trigger pieces 7 and short hair cutter trigger pieces 8, the pressure of the two kinds of head assemblies can be accurately monitored. When the user applies excessive pressure during shaving, the corresponding trigger piece will contact the inductor, triggering the signal transmission to the control system. After receiving the signal, the control system can immediately respond, such as through vibration reminder, sound prompt, or adjusting the motor speed, to inform the user that the current applied pressure may be too large, thereby avoiding unnecessary irritation or harm to the skin. This design not only improves the safety and comfort of the shaving razor, but also enables the user to flexibly adjust the pressure during shaving according to personal preferences and skin sensitivity, thereby obtaining a better shaving experience.

[0021] Further, the long hair cutter assembly 5 has a long hair cutter trigger positioning structure 11, the long hair cutter trigger 7 has a positioning part 12 and a trigger part 13, the positioning part 12 is connected with the long hair cutter trigger positioning structure 11, the trigger part 13 is arranged on the side of the positioning part 12 close to the long hair cutter sensor 9, the central axis of the long hair cutter sensor 9 intersects with the trigger part 13, and the trigger part 13 is connected with the positioning part 12 or the long hair cutter trigger positioning structure 11. Specifically, in the embodiment, the positioning part 12 ensures the stability of the trigger during installation and prevents unnecessary displacement of the trigger during shaving. The trigger part 13 is responsible for contacting the long hair cutter sensor 9 when the cutter head assembly is forced to descend, thereby triggering signal transmission. By arranging the trigger part 13 on the side of the positioning part 12 close to the long hair cutter sensor 9 and ensuring that the central axis of the long hair cutter sensor 9 intersects with the trigger part 13, the design ensures the accuracy and reliability of the trigger action. Even when the user applies pressure in different directions and sizes, the trigger can accurately contact the sensor and transmit accurate pressure signals.

[0022] Further, the long hair cutter assembly 5 includes a long hair static cutter group 14, a long hair dynamic cutter group 15, and a trigger positioning seat 16, the long hair static cutter group 14 is provided with a long hair dynamic cutter movable slot 17, the long hair dynamic cutter group 15 and the trigger positioning seat 16 are arranged in the long hair dynamic cutter movable slot 17, the long hair cutter trigger positioning structure 11 is a positioning shaft protruding from the trigger positioning seat 16, the positioning part 12 is provided with a positioning hole 18, and the positioning shaft extends into the positioning hole 18 and is connected with the positioning part 12. Specifically, in the embodiment, the long hair dynamic cutter group 15 can move flexibly in the long hair dynamic cutter movable slot 17 to adapt to different directions and sizes of hair removal needs. The trigger positioning seat 16 not only provides a stable installation basis for the trigger 7, but also tightly cooperates with the positioning hole 18 on the positioning part 12 through the positioning shaft on the trigger positioning seat 16, thereby ensuring the accuracy and stability of the trigger 7 during installation and use. This design not only improves the overall performance of the shaver, but also provides users with a safer, more comfortable and efficient shaving experience.

[0023] Furthermore, the razor trigger 7 is an integrated structure. The trigger portion 13 protrudes from the end surface of the positioning portion 12 near the razor sensor 9 and extends toward the central axis of the razor sensor 9, intersecting the central axis of the razor sensor 9. As the razor assembly 5 is forced downward, the trigger portion 13 of the razor trigger 7 is driven downward by the razor trigger positioning structure 11, thereby connecting with the razor sensor 9. Specifically, in this embodiment, the integrated design of the razor trigger 7 not only simplifies its manufacturing process but also enhances its structural strength and stability. The protrusion of the trigger portion 13 and its extension toward the central axis of the razor sensor 9 ensures sensitive and accurate triggering. When the razor assembly 5 is forced downward, the trigger positioning structure 11 effectively drives the entire razor trigger 7 downward synchronously, allowing the trigger portion 13 to precisely connect with the razor sensor 9, thereby triggering signal transmission in a timely manner. This design not only improves the pressure sensing accuracy of the shaver, but also allows users to experience a smoother and more stable shaving experience during use.

[0024] Furthermore, the razor trigger 7 is a split-body structure, comprising a blade connector 19 and a spring 20. The blade connector 19 serves as the positioning portion 12, and the spring 20 serves as the trigger portion 13. The spring 20 is mounted on the razor trigger positioning structure 11, with its two ends respectively abutting the blade connector 19 and the razor assembly 5. As the razor assembly 5 is forced downward, the razor trigger positioning structure 11 drives the spring member to synchronously descend and connect with the razor sensor 9. Specifically, in this embodiment, the blade connector 19 serves as the positioning portion 12, ensuring a stable connection between the trigger member and the blade assembly 5 and providing the basis for the triggering action. The spring 20, serving as the trigger portion 13, not only exhibits excellent elasticity, enabling it to sensitively respond to changes in the force applied to the blade assembly 5, but also absorbs and buffers some of the pressure through its elastic deformation, thereby enhancing the comfort and safety of the razor. Spring 20 is mounted on the razor trigger positioning structure 11, with its ends respectively abutting the blade connector 19 and the razor assembly 5. This design ensures that the trigger can stably and synchronously connect with the razor sensor 9 when the force is reduced. When the razor assembly 5 is forced downward, the razor trigger positioning structure 11 drives the spring 20 downward synchronously. During the compression process, the spring 20 contacts the razor sensor 9, triggering the signal transmission.

[0025] Furthermore, the shaving razor assembly 6 is provided with a shaving razor trigger positioning structure 2, such as Figures 5-7As shown, the short-hair cutter trigger piece positioning structure 21 includes a buckle unit and a plug-in limiting unit, and the short-hair cutter trigger piece 8 is limited to connect with the buckle unit and the plug-in limiting unit respectively. The short-hair cutter assembly 6 drives the short-hair cutter trigger piece 8 to move and connect with the short-hair cutter sensing piece 10 during the process of descending. Specifically, in this embodiment, the design of the short-hair cutter trigger piece positioning structure 21 ensures the stability and accuracy of the short-hair cutter trigger piece 8 during installation and use. The buckle unit firmly fixes the short-hair cutter trigger piece 8 on the short-hair cutter assembly 6 through buckle connection, preventing it from falling off or moving during shaving. The plug-in limiting unit provides additional limiting effect, ensuring that the short-hair cutter trigger piece 8 can move stably along the predetermined path when descending under stress, and accurately connect with the short-hair cutter sensing piece 10.

[0026] Further, the buckle unit is a buckle end 22 protruding on both sides of the short-hair cutter assembly 6. The short-hair cutter trigger piece 8 has a short-hair cutter trigger part 24 and a buckle part 23. The buckle part 23 is formed by bending the two sides of the short-hair cutter trigger part 24 towards the buckle end 22. A buckle slot 26 is opened on the buckle part 23, and the buckle end 22 extends into the buckle slot 26 to buckle connect with the buckle part 23. Specifically, in this embodiment, the buckle connection between the buckle end 22 and the buckle part 23 not only simplifies the installation steps, but also ensures that the trigger piece 8 will not fall off or move during shaving due to stress.

[0027] Further, the plug-in limiting unit is a positioning slot 27 opened at the bottom of the short-hair cutter assembly. The short-hair cutter trigger piece 8 has a limiting part 25 corresponding to the positioning slot 27. The limiting part is formed by bending the short-hair cutter trigger part 24 towards the positioning slot 27. The limiting part 25 extends into the positioning slot 27 to connect with the short-hair cutter assembly 6. Specifically, in this embodiment, the design of the limiting part 25 extending into the positioning slot 27 to connect with the short-hair cutter assembly 6 further enhances the connection strength between the trigger piece 8 and the cutter head assembly 6, making the trigger action more reliable. When the short-hair cutter assembly 6 descends under stress, the trigger piece 8 can stably move with the cutter head assembly 6 and eventually connect with the short-hair cutter sensing piece 10, thereby triggering signal transmission.

[0028] Further, at least one of the sensing piece 4 and the trigger piece 3 is elastic. Specifically, in this design, by making the sensing piece 4 and / or the trigger piece 3 elastic, the sensitivity and accuracy of pressure sensing can be further improved. When the cutter head assembly descends under stress, even if the direction or size of the applied pressure changes, the elastically designed sensing piece 4 and / or trigger piece 3 can better adapt to such changes, ensuring the accuracy and stability of the trigger action. In addition, the elastic design can also absorb and buffer part of the pressure, improving the use comfort and safety of the shaving cutter. The elasticity can be the elasticity of the material itself, the stroke of the switch, or the elastic pin, etc.

[0029] In particular, the short-blade inductor or the long-blade inductor can also be a connecting conductor, in which case the short-blade trigger or the long-blade trigger must be electrically conductive. The short-blade trigger or the long-blade trigger is in contact with the static blade. The static blade senses the fine current and thus triggers the pressure indication.

[0030] The above description of disclosed embodiments allows those skilled in the art to make or use the application. Numerous modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Therefore, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A shaver with a pressure sensing device, comprising a cutter head mounting seat (1), a plurality of cutter head assemblies (2) being arranged on the cutter head mounting seat (1), the cutter head assemblies (2) being arranged on the cutter head mounting seat (1) in a floating manner, characterized in that: A triggering member (3) is provided on each of the cutter head assemblies (2), and a sensing member (4) is provided on the cutter head mounting seat (1) corresponding to the triggering member (3) on each cutter head assembly (2). When the cutter head assembly (2) is subjected to downward force, the triggering member (3) is connected to the sensing member (4) to sense pressure.

2. The shaver with a pressure sensing device according to claim 1, wherein: The blade head assembly (2) comprises at least a long-beard blade assembly (5) and a short-beard blade assembly (6); the triggering member (3) comprises a long-beard blade triggering member (7) arranged on the long-beard blade assembly (5) and a short-beard blade triggering member (8) arranged on the short-beard blade assembly (6); and the sensing member (4) on the blade head mounting seat (1) comprises a long-beard blade sensing member (9) corresponding to the long-beard blade triggering member (7) and a short-beard blade sensing member (10) corresponding to the short-beard blade triggering member (8).

3. The shaver with a pressure sensing device according to claim 2, characterized in that: The long-beard knife assembly (5) is provided with a long-beard knife triggering member positioning structure (11), and the long-beard knife triggering member (7) is provided with a positioning portion (12) and a triggering portion (13), wherein the positioning portion (12) is connected to the long-beard knife triggering member positioning structure (11), and the triggering portion (13) is arranged on a side of the positioning portion (12) close to the long-beard knife sensing member (9), wherein the central axis of the long-beard knife sensing member (9) intersects with the triggering portion (13), and the triggering portion (13) is connected to the positioning portion (12) or the long-beard knife triggering member positioning structure (11).

4. The shaver with a pressure sensing device according to claim 3, characterized in that: The long beard knife assembly (5) comprises a long beard static knife group (14), a long beard movable knife group (15) and a trigger member positioning seat (16); a long beard movable knife movable groove (17) is provided on the long beard static knife group (14); the long beard movable knife group (15) and the trigger member positioning seat (16) are both arranged in the long beard movable knife movable groove (17); the long beard knife trigger member positioning structure (11) is a positioning shaft protruding from the trigger member positioning seat (16); a positioning hole (18) is provided on the positioning portion (12); the positioning shaft extends into the positioning hole (18) and is connected to the positioning portion (12).

5. The shaver with a pressure sensing device according to claim 3-4, characterized in that: The long beard knife trigger member (7) is provided in an integrated structure. The trigger portion (13) is formed protrudingly on the end surface of the positioning portion (12) close to the long beard knife sensor (9) and extends in the direction of the central axis of the long beard knife sensor (9) and intersects with the central axis of the long beard knife sensor (9). In the process of the long beard knife assembly (5) being forced to descend, the trigger portion (13) of the long beard knife trigger member (7) is driven to descend synchronously through the long beard knife trigger member positioning structure (11) and connect with the long beard knife sensor (9).

6. The shaver with a pressure sensing device according to claim 3-4, characterized in that: The long beard knife trigger (7) is provided in a split structure. The long beard knife trigger (7) comprises a blade head connecting member (19) and a spring (20). The blade head connecting member (19) is a positioning portion (12), and the spring (20) is a trigger portion (13). The spring (20) is sleeved on the long beard knife trigger positioning structure (11). The two ends of the spring (20) respectively abut against the blade head connecting member (19) and the long beard knife assembly (5). When the long beard knife assembly (5) is subjected to a downward force, the elastic member is driven to synchronously descend through the long beard knife trigger positioning structure (11) and is connected to the long beard knife sensing member (9).

7. The shaver with a pressure sensing device according to claim 2, wherein: A scissor blade triggering member positioning structure (21) is provided on the scissor blade assembly (6), and the scissor blade triggering member positioning structure (21) comprises a buckle unit and a plug-in limit unit. The scissor blade triggering member (8) is respectively connected to the buckle unit and the plug-in limit unit. When the scissor blade assembly (6) descends, the scissor blade triggering member (8) is driven to move and connect with the scissor blade sensing member (10).

8. The shaver with a pressure sensing device according to claim 7, characterized in that: The buckle unit is a buckle end (22) protruding from both sides of the short razor assembly (6); the short razor trigger member (8) comprises a short razor trigger portion (24) and a buckle portion (23); the buckle portion (23) is formed by bending both sides of the short razor trigger portion (24) toward the buckle end (22); a buckle groove (26) is provided on the buckle portion (23); the buckle end (22) extends into the buckle groove (26) and is buckled with the buckle portion (23).

9. The shaver with a pressure sensing device according to claim 7, wherein: The plug-in limiting unit is a positioning groove (27) provided at the bottom of the short razor assembly (6); the short razor trigger member (8) has a limiting portion (25) provided corresponding to the positioning groove (27); the limiting portion (25) is formed by bending the short razor trigger portion (24) toward the positioning groove (27); the limiting portion (25) extends into the positioning groove (27) and is connected to the short razor assembly (6).

10. The shaver with a pressure sensing device according to claim 1, wherein: At least one of the corresponding sensing element (4) and triggering element (3) has elasticity.

Images