A plug-in float device for a shaver head

Abstract

The present application relates to the technical field of electric shavers, in particular to an induction shaver head plug-in floating device, which comprises a head, a plug-in head, a connecting shaft inside the plug-in head; a body, a plug-in seat, a transmission shaft inside the plug-in seat; when the plug-in head is connected with the plug-in seat, the connecting shaft is placed in the transmission shaft; a line conduction structure, which is placed inside the head, is connected with the head at the upper end and connected with the body at the lower end, and the connection of the line conduction structure with the head and the body controls the conduction of the circuit of the body and the head. The plug-in head of the present application is detachably connected with the plug-in seat, and the plug-in head on the plug-in seat can be replaced by other hair trimming induction plug-in heads for trimming nose hair, trimming sideburns and the like, so that the application range is wider and the operation is more convenient.

Description

Technical Field

[0001] The invention relates to the technical field of electric shavers, in particular to an insertion and extraction floating device for an induction shaver head. Background Art

[0002] On the market, most shavers have an integrated fixed structure for the head and body, and there are a few with heads that can be plugged in and fixed to the body, such as the invention patent for a shaver with pluggable heads, with application number 2023105355377. The battery pack, drive mechanism and circuit board are respectively arranged in the inner cavity of the body, and the button group is installed on the outer wall of the body. The various limiting mechanisms can be used to elastically clamp the plug to achieve a stable assembly between the body and the head; another example is the invention patent for a shaver, with application number 2016112402565, which is titled "A base and a head. The base includes The first shell and the driving mechanism arranged therein have a driving shaft, the head has a second shell and a razor mechanism, the razor mechanism has a linkage shaft, the driving shaft and the linkage shaft are linked and connected in a detachable manner, the first shell is provided with a positioning structure corresponding to the driving shaft, and the second shell is provided with a protruding structure corresponding to the linkage shaft for fixed connection with the positioning structure; the first shell is provided with a convex edge at one end facing the head, and the second shell is provided with a clamping step corresponding to the convex edge, the clamping step is connected to the convex edge in an enclosing manner, and an elastic snap mechanism is connected between the two to realize the assembly of the base and the head.

[0003] The detachable heads in the above patents are all fixedly connected to the body. The heads cannot float to fit the skin, and the type of the heads is fixed, with a single usage scenario, which can only meet a single shaving requirement; it is impossible to perform further grooming work on the hair in other parts of the body, such as nose hair and sideburns.

[0004] Therefore, in order to add functions such as trimming nose hair and trimming sideburns to the induction shaver, it is planned to design an induction shaver head plug-in floating device whose head can be replaced with accessories such as an induction nose hair trimmer and an induction sideburns trimmer. Summary of the Invention

[0005] The present invention aims to overcome the defects in the above-mentioned prior art and provides an induction shaver head plug-in floating device, the head of which can float to fit the skin, and the head is pluggable and can be used to replace accessories such as an induction nose hair trimmer and an induction sideburn trimmer.

[0006] In order to achieve the above purpose, the technical solution adopted by the present invention is: an induction shaver head plug-in floating device,

[0007] It includes a machine head, a plurality of knife nets are installed on the top of the machine head, a plug-in head is installed inside the machine head, and a connecting shaft is built into the plug-in head;

[0008] The invention comprises a body, a plug socket is installed inside the body, and a transmission shaft is built into the plug socket; a plug head is detachably connected inside the plug socket; when the plug head is connected to the plug socket, the connection shaft is placed inside the transmission shaft;

[0009] It includes a circuit conduction structure, which is placed inside the head. The upper end of the circuit conduction structure is connected to the head, and the lower end of the circuit conduction structure is connected to the body. The connection between the circuit conduction structure, the head and the body controls the conduction of the circuit between the body and the head.

[0010] As a preferred solution of the present invention, the spring in the line conduction structure is located inside the plug head.

[0011] As a preferred solution of the present invention, the circuit conduction structure includes a spring placed inside the plug head and connected to the outer ring of the shaft. The spring extends a conductive wire toward one side of the plug socket, and the conductive wire is connected to the power-carrying components in the fuselage through the plug socket.

[0012] As a preferred solution of the present invention, the energizing element is a fuselage spring piece or a fuselage spring pin, and the tail of the fuselage spring piece or fuselage spring pin is connected to an energizing wire.

[0013] As a preferred solution of the present invention, the circuit conduction structure includes a plug head pressure plate, the upper end of the plug head pressure plate is provided with a head spring piece, and the top of the spring is embedded between the plug head pressure plate and the head spring piece.

[0014] As a preferred solution of the present invention, the upper end of the machine head shrapnel is connected to the knife net through a spring pin, and the lower end of the machine head shrapnel is fixed to the lower end of the machine head through a screw.

[0015] As a preferred solution of the present invention, the circuit conduction structure is located outside the plug head, and the circuit conduction structure includes a pressure plate. The spring sheet on the upper end of the pressure plate is fixed to the conductive column by a screw. The side of the spring sheet away from the conductive column is connected to the knife net through a spring pin, and the pressure plate is fixed to the lower end of the machine head by a screw.

[0016] As a preferred solution of the present invention, it includes a first spring pin, which is located directly below the conductive column, the first spring pin is located inside the fuselage, the head of the first spring pin protrudes outside the fuselage, the tail of the first spring pin is connected to a wire, and the first spring pin abuts against the conductive column to control the conduction of the fuselage and the head circuit.

[0017] As a preferred solution of the present invention, the circuit conduction structure includes a spring fixed pressure plate, a spring and a spring piece located between the spring fixed pressure plate and the spring. The spring fixed pressure plate is fixed to the lower end of the machine head by screws, and the upper end of the spring piece is connected to the knife net through a spring needle.

[0018] As a preferred solution of the present invention, an elastic buckle of the plug seat is formed on the inner bottom of the plug seat toward the plug head, and a plug head buckle position is formed on the outer bottom of the plug head to be locked with the elastic buckle of the plug seat. Several protrusions are also formed along the outer side of the plug head in the vertical direction, and the protrusions abut the inner side of the plug seat.

[0019] The beneficial effects of the present invention are:

[0020] 1. The plug-in head of the present invention is detachably connected to the plug-in seat, and the plug-in head on the plug-in seat can be replaced with other plug-in heads for trimming nose hair, trimming sideburns, etc., which has a wider range of applications and is more convenient to operate.

[0021] 2. The buckle position of the plug head of the present invention is engaged with the elastic buckle of the plug seat, and the protrusion abuts the inner side of the plug seat to achieve a stable mechanical connection between the plug head and the plug seat.

[0022] 3. The upper end of the line conduction structure of the present invention is connected to the head, and the lower end of the line conduction structure is connected to the body. The line conduction structure realizes signal transmission between the body and the head.

[0023] 4. After the plug-in head of the present invention is connected to the plug-in socket, the circuit conduction structure can stably transmit signals to the head and the body, so that the head and the body are powered, the blade group operates normally, and the blade net fits the skin for 360-degree shaving.

[0024] 5. Different embodiments of the present invention realize a detachable connection between the plug head and the plug socket, so that the transmission signal is transmitted step by step until it reaches the circuit board. After the circuit board is turned on, it can control the start of the motor and thus realize the normal operation of the knife group; at the same time, the connection between the plug head and the plug socket can make the machine head perform tilted floating movement on the horizontal plane. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural diagram of embodiment 1 of the present invention;

[0026] Figure 2 This is a schematic diagram of the plug socket structure according to an embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the plug structure of the first embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of the connection between the plug head and the plug socket according to the first embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of the upper structure of the line conduction structure according to an embodiment of the present invention;

[0030] Figure 6 This is a schematic diagram of the fuselage structure of Embodiment 1 of the present invention;

[0031] Figure 7 is a structural diagram of embodiment 2 of the present invention;

[0032] Figure 8 This is a schematic diagram of the upper structure of the line conduction structure of the second embodiment of the present invention;

[0033] Figure 9 is a structural diagram of embodiment 3 of the present invention;

[0034] Figure 10 This is a schematic diagram of the circuit conduction structure of embodiment 3 of the present invention;

[0035] Figure 11 This is a diagram of the present invention's nose in a downward-pressed state;

[0036] Figure 12 This is the normal use state of the handpiece of the present invention;

[0037] Figure 13 This is a diagram of the present invention in the state of use with the nose raised;

[0038] The accompanying drawings are as follows: machine head 1, plug head 2, plug seat 3, circuit conduction structure 4, knife net 5, machine body 6, connecting shaft 21, plug head buckle position 22, protrusion 23, transmission shaft 31, plug seat elastic buckle 32, spring 41, plug head pressure plate 42, machine head spring piece 43, spring needle 44, spring fixing pressure plate 45, spring piece part 46, pressure plate 47, spring piece 48, conductive column 49, machine body spring piece 61, machine body spring needle 62, first spring needle 63, partition 64, conductive wire 411. DETAILED DESCRIPTION

[0039] The following is an explanation and description of the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention. However, the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the implementation manner, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0040] In the following description, terms such as "inside", "outside", "up", "down", "left", "right", etc. that indicate directions or positional relationships are only used to facilitate the description of the embodiments and simplify the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0041] Example 1:

[0042] like Figures 1-6As shown, an induction shaver head plug-in floating device includes a head 1, a plurality of blade nets 5 are installed on the top of the head 1, a plug-in head 2 is installed inside the head 1, and a connecting shaft 21 is built in the plug-in head 2; it includes a body 6, a plug-in seat 3 is installed inside the body 6, and a transmission shaft 31 is built in the plug-in seat 3; the plug-in head 2 is detachably connected in the plug-in seat 3, and when the plug-in head 2 is connected to the plug-in seat 3, the connecting shaft 21 is placed in the transmission shaft 31. At this time, the blade group works normally. At the same time, the head 1 can make an inclined floating movement on the horizontal plane. When the plug-in head 2 is separated from the plug-in seat 3, the plug-in head 2 on the plug-in seat 3 can be replaced with other plug-in heads for trimming nose hair, trimming sideburns, etc.

[0043] A soft rubber for protecting the head 1 can be installed at the bottom of the head 1, and a cover for protecting the body 6 can also be installed on the top of the body 6.

[0044] like Figure 2-Figure 4 As shown, a plug seat elastic buckle 32 is formed on the inner bottom of the plug seat 3 facing the plug head 2, and a plug head buckle position 22 is formed on the outer bottom of the plug head 2 to be locked with the plug seat elastic buckle 32. Several protrusions 23 are also formed along the outer side of the plug head 2 in the vertical direction, and the protrusions 23 abut the inner side of the plug seat 3.

[0045] In the present invention, the detachable connection between the plug head 2 and the plug socket 3 is as follows: the plug head buckle 22 is placed below the plug socket elastic buckle 32, and the protrusion 23 abuts the inner side of the plug socket 3. More specifically, the plug socket elastic buckle 32 located on the plug socket 3 is connected to the plug socket 3 only at its upper end. This facilitates the plug head buckle 22 to enter the plug socket 3. The plug socket elastic buckle 32 moves away from the plug head 2 to accommodate the insertion of the plug head buckle 22 and engages with the plug head buckle 22. The bottom of the plug socket elastic buckle 32 forms an elastic buckle protrusion facing the plug head 2. The front end of the elastic buckle protrusion forms an upper and lower slope, which facilitates the insertion and removal of the plug head buckle 22. The upper end of the plug socket elastic buckle 32 forms a protrusion 23 facing the plug head 2. There is a gap between the protrusion 23 and the plug socket 3. The arrangement of the protrusion 23 prevents the plug head 2 from shaking in the plug socket 3.

[0046] The plug head 2 is placed in the plug seat 3 and forms a stable integrated structure with the plug seat 3, or the plug head 2 is removed from the plug seat 3, and the plug head 2 can be replaced with other plug heads suitable for grooming various parts of the body.

[0047] Furthermore, in the above-mentioned detachable connection, the inventor's other utility model patent with application number 201920861431.5 is adopted, and the ball hinge seat connected to the head 1 shell cooperates with the hinge ball head on the body connection part to realize the tilting floating movement of the head 1 shell relative to the shaver body, and reasonably arranges the positions of the driving gear, driven gear, ball hinge seat, hinge ball head and other components, and arranges the hinge ball head and the ball hinge seat in the space between the driving gear and the bottom of the shell. The driving gear and the driven gear can be installed as close to the fixed plate as possible, so that the angle between the shell and the shaver body can be adjusted, and the cutter head can better fit the facial contour to ensure the shaving experience; accordingly, the existing technology of using the ball hinge seat connected to the head 1 shell to cooperate with the hinge ball head on the body connection part makes the head 1 perform tilting floating movement when the plug-in head 2 is connected to the plug-in seat 3, and the tilting floating movement can achieve Figure 11-13 The three extreme positions, namely the downward limit position of the head, the free state position of the head and the upward limit position of the head, realize the multi-angle floating fit of the head 1 to the skin. The above structure has been disclosed, so it will not be explained in detail in this patent.

[0048] On the other hand, Figure 1 、 Figure 5-Figure 6 As shown, the conduction of the circuit between the plug head 2 and the plug socket 3 mainly depends on the circuit conduction structure 4, and the circuit conduction structure 4 includes a spring 41 placed inside the plug head 2 and connected to the outer ring of the connecting shaft 21. The spring 41 extends a conductive wire 411 toward the side of the plug socket 3. The conductive wire 411 is connected to the body spring 61 in the fuselage 6 through the plug socket 3. The body spring 61 is fixed to the partition 64 in the fuselage 6 by hot melt welding. The partition 64 is used to support internal parts or separate internal parts that need to be blocked. The tail of the body spring 61 is connected to a power-carrying wire, and the power-carrying wire is connected to the circuit board. After the circuit board is turned on, it can control the start of the motor and thus control the movement of the head 1.

[0049] More specifically, a certain amount of pre-compression is reserved between the body spring clip 61 and the conductive wire 411 to ensure that the conductive wire 411 can always contact the body spring clip 61, thereby achieving uninterrupted signal transmission and conduction, that is, when the head plug head 2 is inserted into the body plug seat 3 and rotated, the conductive wire 411 at the bottom of the spring 41 can always contact the side of the body spring clip 61 facing the plug head 2.

[0050] The circuit conduction structure 4 includes a plug head pressure plate 42, and a machine head spring piece 43 is arranged at the upper end of the plug head pressure plate 42. The inner side of the machine head spring piece 43 forms an inward bending portion, and the bending portion and the inner side of the plug head pressure plate 42 form a notch. The top of the spring 41 is embedded between the notch of the plug head pressure plate 42 and the machine head spring piece 43, and the lower end of the plug head pressure plate 42 is fixed to the lower end of the machine head 1.

[0051] More specifically, a certain amount of preload is reserved between the circular ring at the top of the spring 41 and the machine head spring piece 43 to ensure that the circular ring at the top of the spring 41 can always stick to the plane of the machine head spring piece 43 to achieve uninterrupted signal transmission and conduction, that is, when the machine head plug head 2 is inserted into the fuselage plug seat 3 and rotated, the circular ring at the top of the spring 41 always contacts the side of the machine head spring piece 43 facing the plug seat 3.

[0052] The preload mentioned above refers to the compression that the spring should be subjected to after installation. This preload is generally 10%-20% of the spring length. Preload = compression ratio x spring length. The preload between the body spring 61 and the conductive wire is approximately 0.5mm, preferably 0.5mm. The preload between the ring at the top of the spring 41 and the nose spring 43 is approximately 2mm, preferably 2mm.

[0053] The upper end of the machine head spring piece 43 is connected to the knife net 5 through the spring pin 44, and the lower end of the machine head spring piece 43 is fixed to the lower end of the machine head 1 through a screw.

[0054] More specifically, the spring 41 contacts the machine head spring piece 43, and the machine head spring piece 43 contacts the knife net 5 through the spring needle 44; the conductive wire 411 under the spring 41 contacts the fuselage spring piece 61, and the fuselage spring piece 61 is connected to the energized wire, and the energized wire is connected to the circuit board. The circuit board is connected, and accordingly, after the circuit board is turned on, the controllable motor can be turned on or off. After the motor is energized, it can control the transmission of the transmission shaft 31 and the connecting shaft 21, and then control the normal operation of the knife group. The machine head 1 can also make tilted floating movements on the horizontal plane.

[0055] The signal of the present invention is transmitted from the knife net 5, spring needle 44, head spring 43, spring 41, body spring 61, and power-carrying wire to the circuit board. After the circuit board is turned on, it can control the start of the motor and thus control the normal operation of the knife group in the head 1. At the same time, the tilting floating movement of the head 1 on the horizontal plane is realized.

[0056] In the present invention, the buckle position of the plug-in head is engaged with the elastic buckle of the plug-in seat, and the protrusion abuts the inner side of the plug-in seat to achieve a stable mechanical connection between the plug-in head and the plug-in seat. The detachable plug-in head on the plug-in seat can be replaced with other induction plug-in heads for trimming nose hair, trimming sideburns, etc., meeting the multi-functional grooming needs.

[0057] In the present invention, the upper end of the circuit conducting structure is connected to the head, and the lower end of the circuit conducting structure is connected to the body. The circuit conducting structure realizes the connection between the body and the head circuit, so that the head can operate stably.

[0058] The structures of the plug socket 3 , the plug socket elastic buckle 32 on the plug head 2 , the plug head buckle position 22 and the protrusion 23 in the second and third embodiments are the same as those in the first embodiment.

[0059] In the second and third embodiments, a soft rubber for protecting the head 1 can be installed at the bottom of the head 1 , and a cover for protecting the body 6 can also be installed at the top of the body 6 .

[0060] In the second and third embodiments, the plug head 2 is placed in the plug socket 3 and forms a stable integrated structure with the plug socket 3 , or the plug head 2 is removed from the plug socket 3 , and the plug head 2 and the plug socket 3 can each be a single component.

[0061] In the second and third embodiments, when the plug head 2 is connected to the plug seat 3, the head 1 can make an inclined floating motion on the horizontal plane to achieve Figure 11-13 The three extreme positions, namely the nose downward limit position, the nose free state position and the nose upward limit position, are what the inventor has described in the patent application number 201920861431.5 as the nose 1 being able to float at multiple angles, which will not be explained in detail in this patent.

[0062] Example 2:

[0063] like Figure 7-Figure 8 As shown, an induction shaver head plug-in floating device includes a head 1, a plurality of blade nets 5 are installed on the top of the head 1, a plug-in head 2 is installed inside the head 1, and a connecting shaft 21 is built in the plug-in head 2; it includes a body 6, a plug-in seat 3 is installed inside the body 6, and a transmission shaft 31 is built in the plug-in seat 3; the plug-in head 2 is detachably connected in the plug-in seat 3, and when the plug-in head 2 is connected to the plug-in seat 3, the connecting shaft 21 is placed on the transmission shaft 31. At this time, the blade group works normally, and the head 1 can make an inclined floating movement on the horizontal plane. When the plug-in head 2 is separated from the plug-in seat 3, the plug-in head 2 on the plug-in seat 3 can be replaced with other induction plug-in heads for trimming nose hair, trimming sideburns, etc.

[0064] The conduction of the circuit between the plug head 2 and the plug socket 3 mainly depends on the circuit conduction structure 4, which is located outside the plug head 2, the upper end of the circuit conduction structure 4 is connected to the head 1, and the lower end of the circuit conduction structure 4 is connected to the body 6.

[0065] The circuit conduction structure 4 includes a pressure plate 47, and the spring piece 48 at the upper end of the pressure plate 47 is fixed to the conductive column 49 by screws. The bottom of the conductive column 49 is flat. The side of the spring piece 48 away from the conductive column 49 is connected to the knife net 5 through the spring pin 44. The pressure plate 47 is fixed to the lower end of the machine head 1 by screws. Correspondingly, the spring piece 48 at its upper end is also fixed to the lower end of the machine head 1 by the same nut.

[0066] There is a first spring pin 63 on the body 6. The first spring pin 63 is located directly below the conductive column 49. The first spring pin 63 is located inside the body 6. The head of the first spring pin 63 protrudes from the body 6. The first spring pin 63 is retractable and has a spherical top. The tail of the first spring pin 63 is connected to a wire. The powered wire is connected to a circuit board. After power is supplied, the circuit board can control the movement of the head 1. The first spring pin 63 contacts the conductive column 49 to control the transmission of signals between the body 6 and the head 1.

[0067] More specifically, the conductive column 49 is embedded in the lower end of the machine head by hot pressing or in-mold injection molding. This connection method is stable and reliable. The spring clip 48 at the upper end of the conductive column 49 is fixed to it by screws. One end of the spring pin 44 is also installed on the spring clip 48, and the other end of the spring pin 44 is connected to the knife net 5; the first spring pin 63 is fixed to the fuselage 6 by pressing the fuselage cover, and the bottom of the first spring pin 63 is connected to the circuit board with a wire or spring clip. When the top of the first spring pin 63 abuts against the bottom of the conductive column 49, uninterrupted signal transmission and conduction are achieved, that is, when the head plug head 2 is inserted into the fuselage plug seat 3 and rotated, the top of the first spring pin 63 can always contact one side of the bottom of the conductive column 49.

[0068] Among them, the telescopic stroke of the first spring needle 63 needs to be greater than the up and down movement stroke of the conductive column between the machine head being pressed down or raised, so that when the machine head 1 is raised or pressed down, the spherical surface on the top of the first spring needle 63 will always slide against the plane of the bottom surface of the conductive column 49 to ensure the stability of signal transmission.

[0069] The upper end of the conductive column 49 of the present invention is connected to the knife net 5 through the spring clip 48 and the spring pin 44, and the lower end of the conductive column 49 is connected to the power wire through the first spring pin 63, thereby realizing the conduction of signals between the fuselage 6 and the head 1.

[0070] The signal of the present invention is transmitted from the knife net 5, spring needle 44, spring piece 48, conductive column 49, first spring needle 63, and power-carrying wire step by step to the circuit board. The power-carrying wire is connected to the circuit board. After the circuit board is turned on, it can control the start of the motor and then control the movement of the head 1, thereby realizing circuit conduction between the fuselage 6 and the head 1.

[0071] When the handpiece of the present invention is connected to the body, the conductive post and the first spring pin can be connected to ensure circuit conduction. On the other hand, when the handpiece tilts and floats, the spring pin can still be connected to the conductive post by stretching and retracting to ensure circuit conduction.

[0072] Example 3:

[0073] like Figure 9-10As shown, an induction shaver head plug-in floating device includes a head 1, a plurality of blade nets 5 are installed on the top of the head 1, a plug-in head 2 is installed inside the head 1, and a connecting shaft 21 is built in the plug-in head 2; it includes a body 6, a plug-in seat 3 is installed inside the body 6, and a transmission shaft 31 is built in the plug-in seat 3; the plug-in head 2 is detachably connected in the plug-in seat 3, and when the plug-in head 2 is connected to the plug-in seat 3, the connecting shaft 21 is placed in the transmission shaft 31. At this time, the blade group works normally. At the same time, the head 1 can make an inclined floating movement on the horizontal plane. When the plug-in head 2 is separated from the plug-in seat 3, the plug-in head 2 on the plug-in seat 3 can be replaced with other plug-in heads for trimming nose hair, trimming sideburns, etc.

[0074] The conduction of the circuit between the plug head 2 and the plug socket 3 mainly depends on the circuit conduction structure 4, which is placed inside the head 1. The upper end of the circuit conduction structure 4 is connected to the head 1, and the lower end of the circuit conduction structure 4 is connected to the body 6.

[0075] The circuit conduction structure 4 includes a spring fixed pressure plate 45, a spring 41 and a spring piece 46 located between the spring fixed pressure plate 45 and the spring 41. The spring fixed pressure plate 45 is fixed to the lower end of the machine head 1 by screws, and the upper end of the spring piece 46 is connected to the knife net 5 through a spring needle 44.

[0076] More specifically, the spring fixed pressure plate 45 fixes the elastic piece 46 at its lower end to the lower end of the machine head 1 through screws, and the elastic piece 46 at the lower end of the spring fixed pressure plate 45 directly contacts the top of the spring 41. A certain amount of preload is reserved between the circular ring at the top of the spring 41 and the elastic piece 46 to ensure that the circular ring at the top of the spring 41 can always stick to the plane of the elastic piece 46 to achieve uninterrupted signal transmission and conduction, that is, when the machine head plug head 2 is inserted into the fuselage plug seat 3 and rotated, the circular ring at the top of the spring 41 always contacts the side of the elastic piece 46 facing the plug seat 3.

[0077] The circuit conduction structure 4 includes a spring 41 placed inside the plug head 2 and ringed around the outer ring of the connecting shaft 21. The spring 41 extends a conductive wire 411 toward the side of the plug socket 3. The conductive wire 400 is connected to the power-carrying element in the fuselage 6 through the plug socket 3. The power-carrying element is the fuselage spring pin 62, and the tail of the fuselage spring pin 62 is connected to the power-carrying wire.

[0078] More specifically, a certain amount of pre-load is reserved between the body spring pin 62 and the conductive wire 411 to ensure that the conductive wire 411 can always contact the body spring pin 62, thereby achieving uninterrupted signal transmission and conduction. That is, when the head plug head 2 is inserted into the body plug seat 3 and rotated, the conductive wire 411 at the bottom of the spring 41 can always contact the side of the body spring pin 62 facing the plug head 2.

[0079] The spring 41 of the present invention contacts the elastic piece 46, and the elastic piece 46 contacts the knife net 5 through the spring pin 44; the conductive wire 411 under the spring 41 contacts the body spring pin 62, and the body spring pin 62 is connected to the energized wire.

[0080] The signal of the present invention is transmitted from the knife net 5, spring needle 44, spring piece 46, spring 41, fuselage spring needle 62, and power wire to the circuit board. The power wire is connected to the circuit board. After the circuit board is turned on, it can control the start of the motor and thus control the normal operation of the knife group. At the same time, the head 1 can perform tilted floating movement on the horizontal plane.

[0081] After the plug-in head is connected to the plug-in socket in Examples 1 to 3, the induction signal can be transmitted step by step to the circuit board. After the circuit board is turned on, it can control the start of the motor and thus control the normal operation of the knife group in the head. At the same time, the head shell outside the plug-in head can perform tilted floating movement relative to the shaver body.

[0082] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein, but is to be embodied in the widest possible manner consistent with the principles and novel features disclosed herein.

[0083] Although this article uses the figure marks in the figures more frequently: head 1, plug head 2, plug seat 3, circuit conduction structure 4, knife net 5, body 6, connecting shaft 21, plug head buckle 22, protrusion 23, transmission shaft 31, plug seat elastic buckle 32, spring 41, plug head pressure plate 42, head spring piece 43, spring needle 44, spring fixing pressure plate 45, spring piece part 46, pressure plate 47, spring piece 48, conductive column 49, body spring piece 61, body spring needle 62, first spring needle 63, partition 64, conductive wire 411 and other terms, the possibility of using other terms is not excluded; these terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitations is contrary to the spirit of the present invention.

Claims

1. An induction shaver head plug-in floating device, characterized in that: It comprises a machine head (1), a plurality of knife nets (5) are installed on the top of the machine head (1), a plug-in head (2) is installed inside the machine head (1), and a connecting shaft (21) is built into the plug-in head (2); The invention comprises a body (6), a plug seat (3) is installed inside the body (6), and a transmission shaft (31) is built into the plug seat (3); a plug head (2) is detachably connected inside the plug seat (3); when the plug head (2) is connected to the plug seat (3), the connection shaft (21) is placed inside the transmission shaft (31); and the machine head (1) can perform tilting floating motion on a horizontal plane; The invention comprises a circuit conducting structure (4), wherein the circuit conducting structure (4) is placed inside the machine head (1), the upper end of the circuit conducting structure (4) is connected to the machine head (1), and the lower end of the circuit conducting structure (4) is connected to the machine body (6), and the connection between the circuit conducting structure (4), the machine head (1), and the machine body (6) controls the conduction of the circuit between the machine body (6) and the machine head (1); the circuit conducting structure (4) is located outside the plug head (2), and the circuit conducting structure (4) comprises a pressing plate (47), and the spring piece (48) at the upper end of the pressing plate (47) is fixed to the conductive column (49) by screws, and the circuit conducting structure (4) is connected to the conductive column (49) by screws. The side of the spring sheet (48) away from the conductive column (49) is connected to the knife net (5) through the spring pin (44), and the pressure plate (47) is fixed to the lower end of the machine head (1) by a screw; it includes a first spring pin (63), the first spring pin (63) is located directly below the conductive column (49), the first spring pin (63) is located inside the machine body (6), the head of the first spring pin (63) protrudes outside the machine body (6), the tail of the first spring pin (63) is connected to a wire, and the first spring pin (63) abuts against the conductive column (49) to control the conduction of the circuit between the machine body (6) and the machine head (1).

2. The induction shaver head plug-in and pull-out floating device according to claim 1, characterized in that: The spring (41) in the line conduction structure (4) is located inside the plug head (2).

3. The induction shaver head plug-in and pull-out floating device according to claim 2, characterized in that: The line conduction structure (4) comprises a spring (41) placed inside the plug head (2) and connected to the outer ring of the connecting shaft (21); the spring (41) extends a conductive wire (411) toward one side of the plug socket (3); the conductive wire (411) is connected to the energized element in the body (6) through the plug socket (3).

4. The induction shaver head plug-in and pull-out floating device according to claim 3, characterized in that: The energizing element is a fuselage shrapnel (61) or a fuselage spring pin (62), and the tail of the fuselage shrapnel (61) or the fuselage spring pin (62) is connected to an energizing wire.

5. The induction shaver head plug-in and pull-out floating device according to claim 4, characterized in that: The line conduction structure (4) comprises a plug head pressing plate (42), a machine head shrapnel (43) is arranged on the upper end of the plug head pressing plate (42), and the top of the spring (41) is embedded between the plug head pressing plate (42) and the machine head shrapnel (43).

6. The induction shaver head plug-in and pull-out floating device according to claim 5, characterized in that: The upper end of the machine head shrapnel (43) is connected to the knife net (5) via a spring pin (44), and the lower end of the machine head shrapnel (43) is fixed to the lower end of the machine head (1) via a screw.

7. The induction shaver head plug-in and pull-out floating device according to claim 4, characterized in that: The circuit conduction structure (4) comprises a spring fixed pressure plate (45), a spring (41), and a spring piece (46) located between the spring fixed pressure plate (45) and the spring (41); the spring fixed pressure plate (45) is fixed to the lower end of the machine head (1) by screws, and the upper end of the spring piece (46) is connected to the knife net (5) via a spring pin (44).

8. The induction shaver head plug-in and pull-out floating device according to claim 1, characterized in that: The plug seat (3) is formed with a plug seat elastic buckle (32) on the inner bottom of the plug head (2), and a plug head buckle position (22) is formed on the outer bottom of the plug head (2) to be locked with the plug seat elastic buckle (32). A plurality of protrusions (23) are also formed along the outer side of the plug head (2) in the vertical direction, and the protrusions (23) abut against the inner side of the plug seat (3).

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