Shaving razor and shaving razor handle

Abstract

The present disclosure relates to a shaver and a shaver handle, the shaver comprising a handle, the handle comprising: a housing having an inner cavity; a mounting frame, a reset member, and a floating seat movably mounted above the mounting frame are arranged in the inner cavity; the floating seat is capable of moving towards the mounting frame under external force, and moving away from the mounting frame under the action of the reset member after the external force is removed; a fixing frame and / or an upper cover are arranged above the floating seat; a guide portion is arranged on the mounting frame; a matching portion corresponding to the guide portion is arranged on the floating seat, and the matching portion is configured to be movably connected to the guide portion; the floating seat is configured to have a degree of freedom in the extension direction of the guide portion; wherein a detection unit is arranged on one of the mounting frame and the floating seat, and a positioning unit is arranged on the other; the detection unit is configured to correspond to the positioning unit, and is configured to detect the displacement of the positioning unit relative to the detection unit.

Description

Technical Field

[0001] This disclosure relates to the field of shaving equipment technology, specifically to a razor and a razor handle. Background Technology

[0002] In the personal care field, razors are commonly used tools, and their handle design is crucial to shaving results and user experience. To improve the shave's fit, most existing razors employ a floating head structure, allowing the head to adapt to changes in facial contours. Some razors on the market also feature pressure sensors that detect shaving pressure and provide immediate feedback. This prevents excessive pressure from causing skin irritation, while also avoiding insufficient pressure that results in excessive shaving residue.

[0003] However, the accuracy of pressure detection in existing technologies is generally insufficient, making it difficult to accurately reflect actual shaving pressure. The root cause of this inaccurate pressure detection is that when the shaving head is subjected to external pressure, it is prone to rotation and tilting during its floating process, leading to a shift in the shaving angle. This causes the sensor's force direction to deviate from the preset detection dimension, or the sensor may only capture localized, non-uniform pressure, failing to accurately collect the uniform pressure value between the shaving head and the skin, thus distorting the detection data. Utility Model Content

[0004] This disclosure provides a razor and a razor handle to address the problems existing in the prior art.

[0005] According to a first aspect of this disclosure, a razor is provided, including a handle, the handle comprising: A housing having an inner cavity; a mounting bracket, a reset member, and a floating seat movably mounted above the mounting bracket are disposed in the inner cavity; the floating seat is configured to move toward the mounting bracket under the action of an external force, and to move away from the mounting bracket under the action of the reset member after the external force is removed; a fixed bracket and / or a top cover are disposed above the floating seat; A guide portion is disposed on the mounting bracket; a mating portion corresponding to the guide portion is disposed on the floating seat, the mating portion being configured to be movably connected to the guide portion; the floating seat is configured to have a degree of freedom of movement in the extension direction of the guide portion; A detection unit is provided on one of the mounting bracket and the floating seat, and a positioning unit is provided on the other. The detection unit is configured to correspond to the positioning unit and is configured to detect the displacement of the positioning unit relative to the detection unit.

[0006] In one embodiment of this disclosure, the detection unit is a Hall sensor disposed on the mounting bracket, and the positioning unit is a magnet disposed on the floating base.

[0007] In one embodiment of this disclosure, a control motherboard is further provided in the inner cavity, and the Hall sensor is configured to communicate with the control motherboard via a flexible circuit board; the control motherboard is configured to determine the displacement of the positioning unit relative to the detection unit based on the electrical signal output by the Hall sensor; when the displacement is greater than a threshold, the control motherboard is configured to issue a prompt signal.

[0008] In one embodiment of this disclosure, the circumferential sidewall of the mounting bracket is configured to seal against the inner wall of the housing to form a waterproof space beneath the mounting bracket; the control motherboard, flexible circuit board, and Hall sensor are located within the waterproof space.

[0009] In one embodiment of this disclosure, the mounting bracket is configured to be integrally injection molded with the housing, and a waterproof space is formed below the mounting bracket, in which the control motherboard, flexible circuit board and Hall sensor are located.

[0010] In one embodiment of this disclosure, a first mounting groove for accommodating the Hall sensor is provided on the bottom surface of the mounting bracket; a second mounting groove for accommodating the magnet is provided on the bottom surface of the floating seat; and a groove is provided on the top surface of the mounting bracket, the groove being configured to correspond to the first mounting groove and the second mounting groove in the extending direction of the guide portion.

[0011] In one embodiment of this disclosure, the guide portion is a guide column disposed on the mounting bracket, and the mating portion is a guide groove disposed on the floating seat; during the movement of the floating seat, the guide column always extends into the guide groove.

[0012] In one embodiment of this disclosure, the mounting bracket is provided with an assembly blind hole for fixing the guide post; the lower end of the guide post is configured to extend into the assembly blind hole and to abut against the bottom wall of the assembly blind hole.

[0013] In one embodiment of this disclosure, at least two guide posts are provided, and the at least two guide posts are spaced apart in the circumferential direction of the mounting frame; the number of guide grooves is equal to the number of guide posts, and at least two guide grooves are configured to be spaced apart along the circumferential direction of the floating seat.

[0014] In one embodiment of this disclosure, four guide columns are provided, and the four guide columns are evenly distributed along the circumferential direction of the mounting frame; four guide grooves are provided, and the four guide grooves are evenly distributed along the circumferential direction of the floating seat.

[0015] In one embodiment of this disclosure, the handle further includes a drive assembly disposed in the inner cavity, the drive assembly including a motor body and an output shaft connected to the motor body; the reset member includes a spring sleeved on the output shaft, and / or the reset member includes a spring sleeved on the guide column; the upper and lower ends of the spring are respectively configured to abut against the floating seat and the mounting bracket.

[0016] In one embodiment of this disclosure, the handle further includes a drive assembly disposed in the inner cavity, the drive assembly including a motor body and an output shaft connected to the motor body; the motor body is disposed below the mounting bracket, and the output shaft is configured to extend upward through the mounting bracket and the floating seat along the extension direction of the guide portion.

[0017] In one embodiment of this disclosure, the mounting bracket has a first through hole at its center, and at least two guide portions are spaced apart around the first through hole in the circumferential direction of the mounting bracket; the floating seat has a second through hole at its center, and at least two mating portions are spaced apart around the second through hole in the circumferential direction of the floating seat; wherein the inner diameters of the first through hole and the second through hole are configured to be larger than the outer diameter of the output shaft.

[0018] In one embodiment of this disclosure, a cutter head holder assembly and a cutter head assembly are further included. The cutter head holder assembly is detachably connected to the floating seat and configured to be drively connected to the output shaft. The cutter head assembly is disposed on the cutter head holder assembly. Under the action of an external force, the cutter head assembly is configured to drive the floating seat to move toward the mounting bracket via the cutter head holder assembly.

[0019] In one embodiment of this disclosure, the floating seat is provided with an annular mounting groove, and the center of the annular mounting groove is provided with a second through hole for the output shaft to pass through; the cutter head assembly includes a docking portion located at the bottom end, the docking portion being configured to extend into the annular mounting groove so that the cutter head assembly is drively connected to the output shaft.

[0020] According to a second aspect of this disclosure, a razor handle is also provided, comprising: A housing having an inner cavity; a drive assembly is disposed in the inner cavity, the drive assembly including a motor body and an output shaft connected to the motor body; A mounting bracket is fixedly disposed in the inner cavity; the mounting bracket is provided with at least two guide portions extending along an axis parallel to the output shaft, and the at least two guide portions are spaced apart in the circumferential direction of the mounting bracket; A floating seat is located above the mounting bracket; the floating seat is provided with at least two mating parts corresponding to the guide part, the mating parts being configured to be movably connected to the guide part; under the action of the guide part, the floating seat has a degree of freedom to move in the axial direction of the output shaft; a fixed bracket and / or a top cover are provided above the floating seat; A reset element is disposed between the floating seat and the mounting bracket; the floating seat is configured to move closer to the mounting bracket along the axial direction of the output shaft under the action of an external force, and to move away from the mounting bracket along the axial direction of the output shaft under the action of the reset element after the external force is removed.

[0021] One beneficial effect of this disclosure is that by setting a guide section and utilizing the corresponding connection between the guide section and the mating section, the floating seat is limited to moving essentially only along the extension direction of the guide section, making the floating seat's movement trajectory stable and controllable. Simultaneously, by setting corresponding detection and positioning units, the displacement changes of the floating seat can be accurately captured. Since the floating seat's movement direction is fixed, its relative displacement with the mounting bracket can directly and accurately reflect the magnitude of the pressure on the cutter head, avoiding problems such as sensor force direction deviation or the acquisition of localized pressure, thereby improving the accuracy of pressure detection data.

[0022] Other features and advantages of this disclosure will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0023] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments of the present disclosure and, together with their description, serve to explain the principles of the present disclosure.

[0024] Figure 1 This is an exploded view of a razor provided in one embodiment of this disclosure; Figure 2 This is a cross-sectional view of a razor provided in an embodiment of this disclosure; Figure 3 yes Figure 2 A close-up view of the mounting bracket location; Figure 4 This is a schematic diagram of the structure of a razor handle portion according to an embodiment of the present disclosure; Figure 5 This is a schematic diagram of the mounting bracket, floating seat, resetting member, and guide portion provided in an embodiment of this disclosure; Figure 6 This is a cross-sectional view of a mounting bracket, floating seat, resetting member, guide portion, and magnet provided in an embodiment of this disclosure; Figure 7 This is an exploded view of a mounting bracket, floating seat, resetting member, guide part, and magnet provided in an embodiment of this disclosure; Figure 8 This is a schematic diagram of the bottom angle structure of a floating seat according to an embodiment of the present disclosure.

[0025] Figures 1 to 8 The one-to-one correspondence between the component names and the reference numerals in the figures is as follows: 100. Handle; 1. Housing; 11. Inner cavity; 12. Battery; 2. Mounting bracket; 21. Hall sensor; 22. Flexible circuit board; 230. Waterproof space; 231. First waterproof component; 232. Second waterproof component; 24. First mounting groove; 25. Groove; 26. Assembly blind hole; 27. First through hole; 3. Floating seat; 31. Mating part; 32. Magnet; 33. Second mounting groove; 34. Second through hole; 35. Annular assembly groove; 4. Reset component; 5. Guide part; 6. Drive assembly; 61. Motor body; 62. Output shaft; 71. Top cover; 72. Fixing bracket; 73. Screw; 200. Cutter head assembly; 201. Connecting part; 300. Cutter head assembly. Detailed Implementation

[0026] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present disclosure.

[0027] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this disclosure or its application or use.

[0028] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0030] In this article, terms such as "up," "down," "front," "back," "left," and "right" are used only to indicate the relative positional relationship between related parts, rather than to define the absolute position of these related parts.

[0031] In this article, "first," "second," etc., are used only to distinguish one another, and not to indicate degree of importance, order, or prerequisite for each other.

[0032] In this document, terms such as “equal” and “same” are not strict mathematical and / or geometric limitations, but also include errors that are understandable to those skilled in the art and permissible in manufacturing or use.

[0033] This disclosure provides a razor and a razor handle, wherein the razor handle is part of the razor. The razor handle will be described in conjunction with the description of the specific structure and working principle of the razor below.

[0034] refer to Figure 1 and Figure 2 The shaver disclosed herein includes a handle 100, a head assembly 200, and a head assembly 300, wherein the head assembly 200 is mounted on the handle 100, and the head assembly 300 is mounted on the head assembly 200. The handle 100 can be configured in a shape suitable for gripping, allowing the user to perform a shaving operation by gripping the handle 100 and bringing the head assembly 300 into contact with the skin.

[0035] The handle 100 includes the housing 1. It should be noted that... Figure 1 The image shows only the inner shell of the handle 100. For better user feel and aesthetics, the housing 1 may also include an outer shell fitted over the inner shell. The housing 1 has an inner cavity 11, in which a battery 12 and a drive assembly 6 may be housed. The battery 12 supplies power to the drive assembly 6, enabling the drive assembly 6 to provide driving power to the blade assembly 300. The blades in the blade assembly 300 rotate at high speed, thereby performing the cutting action.

[0036] refer to Figures 3 to 5 The inner cavity 11 contains a mounting bracket 2, a resetting member 4, and a floating seat 3 movably mounted above the mounting bracket 2. The floating seat 3 is configured to move towards the mounting bracket 2 under the action of an external force, and to move away from the mounting bracket 2 under the action of the resetting member 4 after the external force is removed. Specifically, the mounting bracket 2 is fixedly disposed in the inner cavity 11, or it can be integrally formed in the inner cavity 11. The floating seat 3 is movably assembled above the mounting bracket 2 through the resetting member 4. The two ends of the resetting member 4 abut against the floating seat 3 and the mounting bracket 2 respectively, so that the floating seat 3 can move towards the mounting bracket 2 under the action of an external force, and can be reset under the elastic force of the resetting member 4 after the external force is removed.

[0037] In one embodiment of this disclosure, reference is made to Figure 1 and Figure 2The handle 100 also includes a fixing frame 72 located above the floating seat 3. The fixing frame 72 is annular or a plate-like structure adapted to the cross-section of the inner cavity 11. The fixing frame 72 can be fixedly installed in the inner cavity 11 by screws 73. There is a predetermined distance between the lower surface of the fixing frame 72 and the upper surface of the mounting frame 2. This distance is adapted to the maximum floating stroke of the floating seat 3, thereby reserving sufficient space for the floating seat 3 to move downward toward the mounting frame 2 and upward away from the mounting frame 2, ensuring that the floating seat 3 can float freely between the fixing frame 72 and the mounting frame 2 without structural interference. At the same time, the fixing frame 72 provides a clear movement boundary for the floating seat 3, which can prevent the floating seat 3 from floating excessively upward and detaching under the elastic force of the reset member 4, and plays a limiting role in the movement of the floating seat 3.

[0038] Furthermore, a top cover 71 is provided above the mounting bracket 72. Specifically, the top cover 71 can be assembled to the top of the housing 1 by means of a snap-fit ​​connection or a threaded engagement. The edge of the top cover 71 fits tightly against the top opening of the inner cavity 11 of the housing 1, thereby sealing the inner cavity 11 and isolating it from the external environment and the internal space of the inner cavity 11. The sealing design of the top cover 71 can effectively prevent foam, beard debris, dust, etc. during the shaving process from entering the inner cavity 11, avoiding the corrosion of internal electronic components by contaminants, thereby improving the overall waterproof and dustproof performance and service life of the handle 100.

[0039] refer to Figure 2 The drive assembly 6 includes a motor body 61 and an output shaft 62 connected to the motor body 61. The motor body 61 can output rotational power through the output shaft 62. The motor body 61 is located below the mounting bracket 2, and the output shaft 62 is configured to extend upward through the mounting bracket 2 and the floating seat 3, thereby connecting to the cutter head assembly 200 located above the floating seat 3. Figure 2 As shown, the cutter head assembly 200 is detachably connected to the floating seat 3 and is configured to be driven by the output shaft 62. The cutter head assembly 300 is disposed on the cutter head assembly 200. The cutter head assembly 200 has a transmission structure inside, and the output shaft 62 can drive the cutter head assembly 300 to rotate through the cutter head assembly 200. Under the action of external force, the cutter head assembly 300 is configured to drive the floating seat 3 to move towards the mounting bracket 2 through the cutter head assembly 200.

[0040] Specifically, when the shaving head assembly 300 is subjected to external force (such as when pressed against the user's skin), the shaving head assembly 300 can directly transmit the pressure to the floating seat 3 through the shaving head seat assembly 200, causing the floating seat 3 to move towards the mounting bracket 2. This structural design allows the shaving head assembly 300 to float flexibly, thus closely conforming to the skin contours of different users and improving the shaving effect. During the above process, the movement of the floating seat 3 causes the reset member 4 to accumulate elasticity. When the external force on the shaving head assembly 300 is removed, the reset member 4 releases the elasticity, causing the floating seat 3, the shaving head seat assembly 200, and the shaving head assembly 300 to move away from the mounting bracket 2, thereby achieving reset.

[0041] refer to Figures 5 to 7 A guide portion 5 is provided on the mounting bracket 2. This guide portion 5 is configured to extend along the axial direction of the output shaft 62, that is, the extension direction of the guide portion 5 is parallel to the axial direction of the output shaft 62. A mating portion 31 is provided on the floating seat 3, corresponding to the guide portion 5. The mating portion 31 is configured to be movably connected to the guide portion 5, and the floating seat 3 is configured to have a degree of freedom of movement in the extension direction of the guide portion 5. By providing the guide portion 5 and utilizing the corresponding connection between the guide portion 5 and the mating portion 31, this disclosure limits the movement of the floating seat 3 to basically only along the extension direction of the guide portion 5, making the movement trajectory of the floating seat 3 stable and controllable. Furthermore, the extension direction of the guide portion 5 is consistent with the axial direction of the output shaft 62, thereby ensuring that the power transmission path is consistent with the movement direction of the floating seat 3, avoiding movement interference between the output shaft 62 and the floating seat 3, and improving the coordination and rationality of the overall structure.

[0042] A detection unit is installed on one of the mounting bracket 2 and the floating seat 3, while a positioning unit is installed on the other. The detection unit is configured to correspond to the positioning unit and is used to detect the displacement of the positioning unit relative to the detection unit. By setting corresponding detection and positioning units, the displacement changes of the floating seat 3 can be accurately captured. Since the movement direction of the floating seat 3 is fixed, its relative displacement with the mounting bracket 2 can directly and accurately reflect the pressure on the cutter head assembly 300, avoiding the problem of sensor force direction deviation or local pressure acquisition, thereby improving the accuracy of pressure detection data.

[0043] In one embodiment of this disclosure, reference is made to Figure 1 and Figure 3The detection unit is a Hall sensor 21 mounted on the mounting bracket 2, and the positioning unit is a magnet 32 ​​mounted on the floating seat 3. Specifically, the Hall sensor 21 and the magnet 32 ​​can be distributed facing each other along the extension direction of the guide portion 5, thereby ensuring that the relative positional changes of the magnet 32 ​​and the Hall sensor 21 can be accurately captured when the floating seat 3 moves. When the floating seat 3 moves relative to the mounting bracket 2, it can directly drive the magnet 32 ​​fixed on it to move together. When the floating seat 3 approaches the mounting bracket 2, the magnet 32 ​​simultaneously approaches the Hall sensor 21; when the floating seat 3 moves away from the mounting bracket 2, the magnet 32 ​​simultaneously moves away from the Hall sensor 21. The Hall sensor 21 has a fast response speed and high detection accuracy, and can convert the displacement change of the magnet 32 ​​into an electrical signal in a timely manner, providing accurate raw data for pressure judgment.

[0044] In one embodiment of this disclosure, a control motherboard is also provided in the inner cavity 11. The Hall sensor 21 is configured to communicate with the control motherboard via a flexible circuit board 22. The flexible circuit board 22 has excellent bending adaptability, can conform to the complex spatial layout of the inner cavity 11, and maintain connection stability during the movement of the floating seat 3 and the vibration of the shaver during use, avoiding the problems of easy breakage and poor contact of rigid wires. The control motherboard is configured to determine the displacement of the positioning unit relative to the detection unit based on the electrical signal output by the Hall sensor 21. When the displacement is greater than a threshold, the control motherboard is configured to issue a prompt signal. For example, when the displacement is greater than the threshold, it means that the current shaving pressure is too high, and there is a risk of scratching the skin. The control motherboard can issue prompt signals by controlling the light, voice prompts, and vibration of the handle 100, reminding the user to adjust the shaving intensity in time, thereby improving the user experience.

[0045] In one embodiment of this disclosure, reference is made to Figure 3 , Figures 6 to 8 The bottom surface of the mounting bracket 2 has a first mounting groove 24 for accommodating the Hall sensor 21. The Hall sensor 21 is mounted below the mounting bracket 2 and at least partially extends into the first mounting groove 24, which provides clearance for the Hall sensor 21. Figure 8 As shown, a second mounting groove 33 for accommodating a magnet 32 ​​is provided on the bottom surface of the floating seat 3. The magnet 32 ​​can be fixed in the second mounting groove 33 by means of snap-fit, bonding, interference fit, etc.

[0046] Furthermore, a groove 25 is provided on the top surface of the mounting bracket 2. The groove 25 is configured to correspond to the first mounting groove 24 and the second mounting groove 33 in the extending direction of the guide portion 5. The groove 25 can provide clearance for the downward movement of the magnet 32. For example, when the bottom surface of the magnet 32 ​​protrudes from the bottom surface of the floating seat 3, when the floating seat 3 moves to a position close to the limit of the mounting bracket 2, the bottom of the magnet 32 ​​may come into contact with the mounting bracket 2, causing structural interference. To avoid the above problem, this disclosure provides a groove 25 on the top surface of the mounting bracket 2 to avoid the magnet 32 ​​and prevent rigid collision.

[0047] Furthermore, by setting the groove 25, the area of ​​the mounting bracket 2 corresponding to the first mounting groove 24 forms a thin-walled structure. The thickness of the insulating material between the Hall sensor 21 and the magnet 32 ​​is reduced, and the magnetic field penetration efficiency is improved. This allows the Hall sensor 21 to more sensitively capture changes in magnetic field strength caused by the displacement of the magnet 32, reducing attenuation during weak magnetic signal transmission and improving the sensitivity and response speed of displacement detection. At the same time, the coaxial design of the first mounting groove 24, the second mounting groove 33, and the groove 25 forms a precise alignment system of "Hall sensor 21-groove 25-magnet 32," avoiding magnetic circuit offset caused by assembly deviations, ensuring the consistency of detection data, and reducing detection errors caused by positional deviations.

[0048] In one embodiment of this disclosure, reference is made to Figure 6 and Figure 7 The guide section 5 is a guide post mounted on the mounting bracket 2, and the mating section 31 is a guide groove mounted on the floating seat 3. During the movement of the floating seat 3, the guide post 5 always extends into the guide groove. The outer diameter of the guide post matches the inner diameter of the guide groove. As the floating seat 3 moves along the guide post, the guide post remains within the guide groove, forming a radial constraint. This disclosure restricts the radial rotation and tilt of the floating seat 3 through the fit between the post and the groove, ensuring that it moves essentially only along the extension direction of the guide section 5. This results in high structural stability and provides reliable guidance for precise displacement detection. Furthermore, this structure is simple to manufacture, low in cost, and suitable for mass production of shavers.

[0049] In one embodiment of this disclosure, such as Figure 7As shown, the mounting bracket 2 is provided with a blind mounting hole 26 for fixing the guide column. The lower end of the guide column is configured to extend into the blind mounting hole 26 and abut against the bottom wall of the blind mounting hole 26. Specifically, the lower end of the guide column can be fixedly connected to the blind mounting hole 26 by means of insertion, snap-fit, bonding, interference fit, etc. This fixing structure makes the fixation between the guide column and the mounting bracket 2 more secure, avoiding the loosening and displacement of the guide part 5 due to vibration and force during long-term use, thereby ensuring stable guiding accuracy, preventing the floating seat 3 from tilting due to the shaking of the guide column, and improving the reliability of the structure. Optionally, the guide column can also be integrally injection molded with the mounting bracket 2.

[0050] In one embodiment of this disclosure, at least two guide posts are provided, spaced apart in the circumferential direction of the mounting bracket 2. The number of guide grooves (i.e., mating parts 31) is equal to the number of guide posts (i.e., guide parts 5), and the at least two guide grooves are configured to be spaced apart along the circumferential direction of the floating seat 3. Multiple sets of guide structures can form a balanced radial constraint, which can more comprehensively offset the lateral force on the floating seat 3 compared to a single guide structure. This can avoid the floating seat 3 from shifting or getting stuck due to unilateral force, making the floating seat 3 move more smoothly and ensuring a linear correspondence between displacement change and the pressure on the cutter head assembly 300, thereby improving the accuracy and stability of pressure detection.

[0051] Specifically, in this embodiment, four guide columns (i.e., guide parts 5) are provided, evenly distributed along the circumferential direction of the mounting frame 2. Correspondingly, four guide grooves (i.e., mating parts 31) are provided, evenly distributed along the circumferential direction of the floating seat 3. The four sets of guide structures evenly distributed in the circumferential direction form an approximately centrally symmetrical guide system, which can comprehensively balance the forces on the floating seat 3 in all directions, further eliminating the risk of the floating seat 3 tilting, providing a better guide structure for pressure detection, and ensuring the accuracy of pressure sensing data.

[0052] In one embodiment of this disclosure, the reset element 4 includes a spring sleeved on the output shaft 62, and / or, the reset element 4 includes a spring sleeved on the guide column; the upper and lower ends of the spring are respectively configured to abut against the floating seat 3 and the mounting bracket 2. Specifically, the reset element 4 adopts a spring structure, which can be a large-sized spring sleeved on the output shaft 62 (based on the output shaft 62 itself having a large diameter), or multiple small-sized springs sleeved on the guide column (based on the guide column itself having a small diameter and multiple springs being provided), or both types of springs can be provided simultaneously. Regardless of the form adopted, the spring is in a pre-compressed state, and its upper and lower ends always maintain surface contact with the floating seat 3 and the mounting bracket 2. When the floating seat 3 moves closer to the mounting bracket 2 under the action of external force, the spring is further compressed to accumulate elastic potential energy. After the external force is removed, the elastic potential energy is released, pushing the floating seat 3 to reset.

[0053] This disclosure provides precise radial positioning for the reset component 4 through the sleeved cooperation of the spring and the guide post, preventing the reset component 4 from shifting, twisting, or tilting during extension and retraction, and ensuring that the reset force is always applied along the movement direction of the floating seat 3. Preferably, the spring sleeved on the guide post can be a helical spring, with an inner diameter larger than and close to the diameter of the guide post. This allows the helical spring to be sleeved on and close to the guide post, providing precise radial positioning for the spring and preventing it from shifting, twisting, or tilting during extension and retraction, ensuring that the reset force is always applied along the movement direction of the floating seat 3. In addition, the spring is located in the central area (sleeved on the output shaft 62) and / or evenly distributed in the circumferential area (sleeved on each guide post), thereby ensuring that the floating seat 3 is uniformly supported by elastic force, preventing the floating seat 3 from tilting or jamming during reset, and ensuring the smoothness of the reset movement of the floating seat 3.

[0054] In one embodiment of this disclosure, reference is made to Figure 3 , Figure 6 and Figure 7 The mounting bracket 2 has a first through hole 27 at its center, and the floating seat 3 has a second through hole 34 at its center. The inner diameters of the first through hole 27 and the second through hole 34 are configured to be larger than the outer diameter of the output shaft 62. The motor body 61 is fixedly mounted below the mounting bracket 2. The upwardly extending output shaft 62 can pass through the first through hole 27 and the second through hole 34 in sequence, and the output shaft 62 will not contact the first through hole 27 and the second through hole 34, thus avoiding frictional resistance and ensuring that the output shaft 62 can rotate freely without interference. At the same time, when the floating seat 3 floats under the action of external force, the floating seat 3 sleeved on the output shaft 62 will not interfere with the output shaft 62, thereby ensuring that the floating seat 3 can move smoothly.

[0055] Furthermore, at least two guide portions 5 are spaced apart around the first through hole 27 in the circumferential direction of the mounting bracket 2, and at least two mating portions 31 are spaced apart around the second through hole 34 in the circumferential direction of the floating seat 3. This disclosure uses the through hole (i.e., the first through hole 27 and the second through hole 34) through the output shaft 62 as the central reference, ensuring that the distribution of the guide portions 5 and mating portions 31 forms a centered positioning, guaranteeing that the axis of motion of the floating seat 3 coincides with the axis of the output shaft 62. The multiple sets of guide portions 5 and mating portions 31 distributed around the first through hole 27 and the second through hole 34 form an annular constraint ring. When the cutter head assembly 300 is subjected to lateral force or non-uniform pressure, each set of guide structures can synchronously share the force, avoiding the unilateral offset problem that easily occurs with a single guide structure, ensuring that the floating seat 3 always moves linearly along the guide direction, thereby guaranteeing the linear correspondence between displacement and pressure required for pressure detection.

[0056] In one embodiment of this disclosure, reference is made to Figures 4 to 6 The floating seat 3 is provided with an annular mounting groove 35, and a second through hole 34 for the output shaft 62 to pass through is provided at the center of the annular mounting groove 35. (Reference) Figure 1 and Figure 2 The cutter head assembly 200 includes a docking portion 201 located at its bottom end. The docking portion 201 is configured to extend into an annular mounting groove 35 to enable a drive connection between the cutter head assembly 200 and the output shaft 62. Specifically, the dimensions of the docking portion 201 are adapted to the annular mounting groove 35. The docking portion 201 can be fixedly mounted on the floating seat 3 via the annular mounting groove 35, or it can abut against the bottom surface of the annular mounting groove 35, thereby enabling the cutter head assembly 300 to push the floating seat 3 to move when subjected to external force. Preferably, the cutter head assembly 200 and the floating seat 3 are detachably connected. One of the docking portion 201 and the floating seat 3 is provided with a buckle or a locking wire, and the other is correspondingly provided with a locking groove or a locking plane that mates with the buckle or locking wire, enabling the cutter head assembly 200 and the floating seat 3 to be detachably connected. The force on the cutter head assembly 300 can be transmitted to the floating seat 3 with almost no loss, thereby ensuring that the displacement change of the floating seat 3 is synchronized with the actual force on the cutter head assembly 300, avoiding detection deviations caused by pressure transmission delay or loss.

[0057] Furthermore, the second through hole 34 and the annular assembly groove 35 are coaxially arranged, with their central axes coinciding. This ensures that the transmission center of the cutter head assembly 200 and the output shaft 62 is consistent with the center of the floating seat 3, avoiding torque loss caused by transmission eccentricity, reducing wear on the mating part 201 between the output shaft 62 and the cutter head assembly 200, and improving power transmission efficiency and structural lifespan. Simultaneously, the coaxial structure provides a precise positioning reference for the cutter head assembly 200, simplifying the assembly process. The cutter head assembly 200 and the output shaft 62 can be quickly mated, reducing assembly errors. In addition, the force on the cutter head assembly 300 can be evenly transmitted to the floating seat 3 along the axial direction, avoiding lateral force-induced tilting of the floating seat 3 and ensuring a linear correspondence between the displacement of the floating seat 3 and the pressure of the cutter head.

[0058] In one embodiment of this disclosure, reference is made to Figure 3 and Figure 5The circumferential sidewall of the mounting bracket 2 is configured to seal against the inner wall of the housing 1, forming a waterproof space 230 below the mounting bracket 2. The control motherboard, flexible circuit board 22, and Hall sensor 21 are located within the waterproof space 230. In this embodiment, a first waterproof component 231 can be provided on the outer periphery of the mounting bracket 2, and a second waterproof component 232 sleeved on the output shaft 62 can be provided on the inner periphery of the first through hole 27, thereby forming a sealed waterproof space 230 below the mounting bracket 2. Moisture generated during shaving may seep into the inner cavity 11 through the gaps in the top cover 71. The first waterproof component 231 and the second waterproof component 232 can effectively block liquid, preventing liquid from entering the waterproof space 230 below the mounting bracket 2. This protects electronic components such as the control motherboard, flexible circuit board 22, and Hall sensor 21 from water corrosion and short circuit failure, improving the waterproof performance and reliability of the shaver.

[0059] In another embodiment of this disclosure, the mounting bracket 2 is integrally injection molded with the housing 1, and a waterproof space 230 is formed below the mounting bracket 2. The control motherboard, flexible circuit board 22, and Hall sensor 21 are located in the waterproof space 230. In this embodiment, the mounting bracket 2 and the housing 1 are processed using an integral injection molding process, so that the two form a seamless integral structure, naturally enclosing the waterproof space 230 below the mounting bracket 2. In this way, a separate sealing assembly process can be eliminated, reducing the number of parts and assembly errors, lowering production costs, and completely eliminating the problem of waterproof failure caused by assembly gaps.

[0060] The various embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, and are not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein. The scope of this disclosure is defined by the appended claims.

Claims

1. A razor, comprising a handle, characterized in that, The handle includes: A housing having an inner cavity; a mounting bracket, a reset member, and a floating seat movably mounted above the mounting bracket are disposed in the inner cavity; the floating seat is configured to move toward the mounting bracket under the action of an external force, and to move away from the mounting bracket under the action of the reset member after the external force is removed; a fixed bracket and / or a top cover are disposed above the floating seat; A guide portion is disposed on the mounting bracket; a mating portion corresponding to the guide portion is disposed on the floating seat, the mating portion being configured to be movably connected to the guide portion; the floating seat is configured to have a degree of freedom of movement in the extension direction of the guide portion; A detection unit is provided on one of the mounting bracket and the floating seat, and a positioning unit is provided on the other. The detection unit is configured to correspond to the positioning unit and is configured to detect the displacement of the positioning unit relative to the detection unit.

2. The razor according to claim 1, characterized in that, The detection unit is a Hall sensor mounted on the mounting bracket, and the positioning unit is a magnet mounted on the floating base.

3. The razor according to claim 2, characterized in that, The inner cavity is also equipped with a control motherboard, and the Hall sensor is configured to communicate with the control motherboard via a flexible circuit board; the control motherboard is configured to determine the displacement of the positioning unit relative to the detection unit based on the electrical signal output by the Hall sensor. When the displacement exceeds a threshold, the control board is configured to issue a warning signal.

4. The razor according to claim 3, characterized in that, The circumferential sidewall of the mounting bracket is configured to seal against the inner wall of the housing to form a waterproof space below the mounting bracket; The control motherboard, flexible circuit board, and Hall sensor are located in the waterproof space.

5. The razor according to claim 3, characterized in that, The mounting bracket is constructed to be integrally injection molded with the housing, and a waterproof space is formed below the mounting bracket, in which the control motherboard, flexible circuit board and Hall sensor are located.

6. The razor according to claim 2, characterized in that, The bottom surface of the mounting bracket is provided with a first mounting groove for accommodating the Hall sensor; the bottom surface of the floating seat is provided with a second mounting groove for accommodating the magnet; the top surface of the mounting bracket is provided with a groove, which is configured to correspond to the first mounting groove and the second mounting groove in the extension direction of the guide portion.

7. The razor according to claim 1, characterized in that, The guide part is a guide column provided on the mounting frame, and the mating part is a guide groove provided on the floating seat; during the movement of the floating seat, the guide column always extends into the guide groove.

8. The razor according to claim 7, characterized in that, The mounting bracket is provided with an assembly blind hole for fixing the guide column; the lower end of the guide column is configured to extend into the assembly blind hole and to abut against the bottom wall of the assembly blind hole.

9. The razor according to claim 7, characterized in that, At least two guide columns are provided, and the at least two guide columns are spaced apart in the circumferential direction of the mounting frame; the number of guide grooves is equal to the number of guide columns, and at least two guide grooves are configured to be spaced apart along the circumferential direction of the floating seat.

10. The razor according to claim 9, characterized in that, Four guide columns are provided, and the four guide columns are evenly distributed along the circumferential direction of the mounting frame; four guide grooves are provided, and the four guide grooves are evenly distributed along the circumferential direction of the floating seat.

11. The razor according to claim 7, characterized in that, The handle also includes a drive assembly disposed in the inner cavity, the drive assembly including a motor body and an output shaft connected to the motor body; the reset member includes a spring sleeved on the output shaft, and / or the reset member includes a spring sleeved on the guide column; the upper and lower ends of the spring are respectively configured to abut against the floating seat and the mounting bracket.

12. The razor according to claim 1, characterized in that, The handle also includes a drive assembly disposed in the inner cavity, the drive assembly including a motor body and an output shaft connected to the motor body; the motor body is disposed below the mounting bracket, and the output shaft is configured to extend upward through the mounting bracket and the floating seat along the extension direction of the guide portion.

13. The razor according to claim 12, characterized in that, The mounting bracket has a first through hole at its center, and at least two guide parts are spaced apart around the first through hole in the circumferential direction of the mounting bracket; the floating seat has a second through hole at its center, and at least two mating parts are spaced apart around the second through hole in the circumferential direction of the floating seat; wherein the inner diameters of the first through hole and the second through hole are configured to be larger than the outer diameter of the output shaft.

14. The razor according to claim 12, characterized in that, It also includes a cutter head holder assembly and a cutter head assembly, the cutter head holder assembly being detachably connected to the floating seat and configured to be drively connected to the output shaft, the cutter head assembly being disposed on the cutter head holder assembly; under the action of an external force, the cutter head assembly is configured to drive the floating seat to move toward the mounting bracket via the cutter head holder assembly.

15. The razor according to claim 14, characterized in that, The floating seat is provided with an annular assembly groove, and the center of the annular assembly groove is provided with a second through hole for the output shaft to pass through; the cutter head assembly includes a docking part located at the bottom end, and the docking part is configured to extend into the annular assembly groove so that the cutter head assembly is connected to the output shaft for transmission.

16. A razor handle, characterized in that, include: A housing having an inner cavity; a drive assembly is disposed in the inner cavity, the drive assembly including a motor body and an output shaft connected to the motor body; A mounting bracket is fixedly disposed in the inner cavity; the mounting bracket is provided with at least two guide portions extending along an axis parallel to the output shaft, and the at least two guide portions are spaced apart in the circumferential direction of the mounting bracket. A floating seat is located above the mounting bracket; the floating seat is provided with at least two mating parts corresponding to the guide part, the mating parts being configured to be movably connected to the guide part; under the action of the guide part, the floating seat has a degree of freedom to move in the axial direction of the output shaft; a fixed bracket and / or a top cover are provided above the floating seat; A reset element is disposed between the floating seat and the mounting bracket; the floating seat is configured to move closer to the mounting bracket along the axial direction of the output shaft under the action of an external force, and to move away from the mounting bracket along the axial direction of the output shaft under the action of the reset element after the external force is removed.

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