CN216577975U - Guiding and positioning structure of electric shaver trimmer - Google Patents

Abstract

The utility model provides a guiding and positioning structure of an electric shaver trimmer, which utilizes a guide rail of a base, a guiding bulge of a shell, positioning bulges arranged on two side walls of the guide rail at intervals and concave parts on two sides of the guiding bulge, and the positioning bulges on the guide rail can be clamped into the concave parts of the guiding bulges when the trimmer moves; the structure can give a user a click-through feeling, so that the user can conveniently identify whether the trimmer reaches the position for opening the shaver body or the trimmer and can conveniently operate the trimmer to accurately reach the corresponding position; in addition, the guide rail has elasticity, and in the guide rail moving process, the guide rail can be tightly attached to two sides of the guide protrusion, and the positioning protrusion can be clamped into the concave part and can be separated from the concave part after being pushed by a certain amount of force, so that the trimmer is prevented from being moved easily to cause misoperation, and can be opened and closed elastically without affecting the movement of the trimmer.

Description

Guiding and positioning structure of electric shaver trimmer

Technical Field

The utility model relates to the technical field of shavers, in particular to a guiding and positioning structure of an electric shaver trimmer.

Background

An electric shaver is used for shaving hair by driving a blade through electric power, and belongs to daily necessities commonly used by men in daily life.

Because hairs grow out of the temples of the male, some shavers are additionally provided with a trimmer for repairing the temples for the convenience of cleaning and styling the hair, and the trimmer is usually linked with the shavers so as to cut the hairs by driving the trimmer with the shavers.

For example, chinese patent document CN110039577B discloses an electric shaver, which has a hair trimmer movably disposed outside a housing and having a first position separated from a swing lever and a second position connected to the swing lever, and it can be known from the attached drawings that a switch button of the electric shaver is disposed outside the housing, and the shaver and the hair trimmer are started by pressing the switch button first; the switch key in the electric shaver is arranged on the outer side of the shell, so that the overall attractiveness is influenced, the switch key is easy to start in the collision or extrusion process, and the safety is low.

Therefore, the utility model discloses the people has designed an electric shaver, utilizes the clipping machine to move on electric shaver and realizes opening and closing of electric shaver and clipping machine, and it can be relative to need to realize the clipping machine at the removal in-process electric shaver location guarantees can be accurate open and close electric shaver and clipping machine.

SUMMERY OF THE UTILITY MODEL

Accordingly, the present invention is directed to overcoming the drawbacks of the prior art, and to provide a guide positioning structure of an electric razor trimmer capable of guiding a positioning movement of the trimmer on the electric razor and ensuring accurate opening and closing of the electric razor and the trimmer.

The utility model provides a direction location structure of electric razor clipping machine, sets up between clipping machine and the razor body of electric razor in order to fix a position the clipping machine is relative two at least positions that the razor body set up, including setting up the guide rail of the base of clipping machine, set up in the casing of razor body is relative the position department of guide rail, the guide rail can slide along it makes the clipping machine be in the direction arch of change between two at least positions, the both sides wall interval of guide rail is provided with two at least pairs of location archs that correspond the setting, correspond with at least one position, the protruding both sides shaping of direction has to be suitable for two pairs of location archs that correspond the setting are blocked and are made the clipping machine is fixed a position the concave part in at least one position.

Further, the base is provided with a mounting groove, two guide pieces which are arranged in parallel are fixed at one end of the mounting groove and extend to the other end of the mounting groove longitudinally, the two guide pieces are respectively bent towards two side walls and connected to the two side walls to form the guide rail, and the guide rail is close to the other end of the mounting groove and can be elastically opened and closed.

Further, the trimmer has a first position closing the shaver body and the trimmer relative to the housing, a second position actuating the shaver body and the trimmer, and a third position actuating the shaver body and closing the trimmer, the third position being intermediate the first and second positions.

Furthermore, two pairs of first positioning bulges and second positioning bulges which are correspondingly arranged in pairs are arranged on two side walls of the guide rail at intervals, the first positioning bulges are matched with the concave parts to position a third position, and the second positioning bulges are matched with the concave parts to position a second position.

Furthermore, a static groove which is suitable for the guide bulge to be placed in and used for positioning the first position is arranged above the first positioning bulge on the guide rail.

Further, the distance between adjacent positioning protrusions is smaller than the length dimension of the guide protrusion.

Furthermore, the guide bulge also comprises a convex part which is arranged at the two ends of the concave part and can pass through a channel formed by the positioning bulges arranged correspondingly in pairs,

furthermore, the guide bulge is in an 8 shape.

Further, the casing is provided with a groove, the trimmer moves in the groove, and a limiting structure used for limiting the movement of the trimmer is arranged between the groove and the trimmer.

Furthermore, the limiting structure comprises limiting grooves arranged on the groove walls on two sides of the groove, and limiting bulges which are arranged at the positions of the trimmer corresponding to the limiting grooves and can slide in the limiting grooves.

The technical scheme of the utility model has the following advantages:

1. the utility model provides a guiding and positioning structure of an electric shaver trimmer, which utilizes a guide rail of a base, a guiding bulge of a shell, positioning bulges arranged on two side walls of the guide rail at intervals and concave parts on two sides of the guiding bulge, and the positioning bulge on the guide rail can be clamped into the concave part of the guiding bulge when the trimmer moves; the structure can provide the user with the click-through degree, so that the user can conveniently identify whether the trimmer reaches the position for opening the shaver body or the trimmer, and the user can conveniently operate the trimmer to accurately reach the corresponding position; in addition, the guide rail has elasticity, and in the guide rail moving process, the guide rail can be tightly attached to two sides of the guide protrusion, and the positioning protrusion can be clamped into the concave part and can be separated from the concave part after being pushed by a certain amount of force, so that the trimmer is prevented from being moved easily to cause misoperation, and can be opened and closed elastically without affecting the movement of the trimmer.

2. The guiding and positioning structure of the electric shaver trimmer provided by the utility model is characterized in that the trimmer is also provided with a third position arranged between the first position and the second position, the third position is arranged between the first position and the second position, a state that the shaver body is opened but the trimmer is not started is added, and the shaver body is started and the trimmer is started separately, so that the shaver body can be started independently without starting the trimmer when only the shaver body is needed to be used and the trimmer is not needed, and the electric shaver trimmer is more convenient to use.

3. According to the guiding and positioning structure of the electric shaver trimmer, the distance between adjacent positioning protrusions is smaller than the length dimension of the guiding protrusions; the structure can avoid the situation that the guide bulge is trapped between the first positioning bulge and the second positioning bulge to cause positioning error, and the trimmer is not moved to a corresponding position, so that the trimmer cannot be normally started to cause poor use experience.

4. According to the guiding and positioning structure of the electric shaver trimmer, the limiting structure is arranged between the groove of the shell and the trimmer; the limiting structure comprises limiting grooves arranged on the groove walls on the two sides of the groove, and limiting bulges which are arranged at the positions of the trimmer corresponding to the limiting grooves and can slide in the limiting grooves; the moving distance of the trimmer is limited by the matching of the limiting protrusion, the limiting groove and the groove, the trimmer can be fixed on the shell, and the trimmer is prevented from being easily separated.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural view of an electric shaver provided in the present invention;

FIG. 2 is an exploded view of the trimmer shown in FIG. 1;

FIG. 3 is a schematic view of the connection between the housing and the transmission member shown in FIG. 1;

FIG. 4 is a schematic structural view of the housing shown in FIG. 3;

fig. 5 is a schematic structural view of the internal structure of the electric shaver shown in fig. 1;

FIG. 6 is a schematic structural view of the switch mechanism shown in FIG. 5;

FIG. 7 is a schematic structural view of the base shown in FIG. 2;

FIG. 8 is a schematic view of the trimmer in a first position;

FIG. 9 is a schematic view of the trimmer in a third position;

FIG. 10 is a schematic view of the trimmer in a second position;

description of reference numerals: 1. a shaver body; 2. a trimmer; 21. a base; 211. a track; 2111. A first track; 2112. a second track; 2113. a third track; 212. a guide rail; 213. a swing hole; 214. mounting grooves; 215. a guide; 216. a first positioning projection; 217. a second positioning projection; 218. a static groove; 22. a gland; 221. a push groove; 222. a friction projection; 223. a push hole; 224. a limiting bulge; 23. a trimming assembly; 24. a swing rod; 241. a rod body; 25. a pushing block; 251. pushing the protrusion; 3. a housing; 31. a groove; 32. a guide projection; 321. a recessed portion; 322. A projection; 33. a limiting groove; 34. a drive bore; 4. a transmission member; 41. moving the projection; 42. a moving part; 43. a first transmission unit; 44. a second transmission part; 5. a first conductive connector; 51. a first connection portion; 52. a second connecting portion; 53. a third connecting portion; 6. a second conductive connection; 61. an elastic leg; 62. a fourth connecting portion; 63. a fifth connecting part; 64. a sixth connecting portion; 65. fixing grooves; 7. a power source; 8. a motor; 9. a fixed mount; 91. a baffle plate; 10. an eccentric member; 11. an oscillating member.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

As shown in fig. 1, 2 and 5, the electric shaver comprises a shaver body 1, the shaver body 1 includes a housing 3, a razor unit installed above the housing 3 and capable of cutting beard in a reciprocating motion, a trimmer 2 movably installed at an outer side portion of the shaver body 1, a recess 31 is provided at an outer side portion of the housing 3, the trimmer 2 is partially disposed in the recess 31, a power source 7 for supplying power is provided in the housing 3, a motor 8 capable of being connected to the power source 7 to form an electric circuit to operate the shaver body 1, an eccentric member 10 connected to the motor 8 to reciprocate the razor unit, a swinging member 11 reciprocating under the driving of the eccentric member 10, a swinging rod 24 extending toward the swinging member 11 is fixed to the trimmer 2, and the swinging rod 24 moves up and down along with the trimmer 2, when the swing link 24 is moved to be connected to the swing member 11, the trimmer 2 reciprocates with the swing member 11; a fixing frame 9 is further arranged in the shell 3, and the power supply 7 and the motor 8 are installed on the fixing frame 9.

A switch mechanism which can be linked with the trimmer 2 is arranged between the shaver body 1 and the trimmer 2 and can enable the power supply 7 to be communicated with the motor 8 so as to switch on or off the shaver body 1; as shown in fig. 2 and 3, the switching mechanism includes a transmission member 4 hinged below the housing 3 with respect to the trimmer 2 and rotating with a change in position of the trimmer 2, and a connecting structure provided in the housing 3 and electrically connected to the power source 7 and the motor 8 by the transmission member 4 when the transmission member 4 rotates; a transmission hole 34 is formed in the groove 31 of the housing 3, the transmission member 4 is inserted into the transmission hole 34 and rotates with the transmission hole 34 as an original point, the transmission member 4 is located outside the housing 3 and connected to the trimmer 2, the transmission member 4 is located inside the housing 3 and connected to the connecting structure, the connecting structure is located inside the housing 3 and connected to the transmission member 4 located inside the housing 3, and the connecting structure controls the connection and disconnection of the circuit of the shaver body 1.

In the electric shaver in the prior art, a switch button is arranged on a shell 3 of the electric shaver except a trimmer 2, the start and the stop of the electric shaver are controlled by the switch button, the movement of the trimmer 2 arranged on the shell 3 is to realize the start and the stop of the trimmer 2, namely the trimmer 2 in the prior art cannot control the opening and the closing of the electric shaver; the switch mechanism capable of controlling the opening and closing of the shaver body 1 is arranged between the shaver body 1 and the trimmer 2 and is linked with the trimmer 2, the switch mechanism is changed when the trimmer 2 moves, the connecting structure is acted by the transmission part 4, the circuit of the electric shaver is connected or disconnected, the trimmer 2 is combined with the switch button by an inventor, the switch mechanism is utilized to realize the connection between the switch of the shaver body 1 and the trimmer 2, the trimmer 2 can be simultaneously controlled by sliding the trimmer 2, the operation is convenient, the switch button protruding out of the shell in the prior art is removed, the overall appearance of the electric shaver is simpler, and the appearance appreciation is improved; the transmission part 4 is arranged on the shell 3, and the connecting structure connected with the transmission part 4 is arranged in the shell 3 to realize the switch of the electric shaver, so that the electric shaver has ingenious conception and can be accurately linked with the trimmer 2.

The trimmer 2 is moved on the housing 3 to have a first position (shown in fig. 8) and a second position (shown in fig. 10) relative to the housing 3, the trimmer 2 being separated from the swinging member 11 in the first position, the shaver body 1 and the trimmer 2 being in a closed state and not in operation; in the second position, the swing rod 24 is connected with the swing piece 11, and the shaver body 1 and the trimmer 2 are in an open state and work normally; the trimmer 2 further has a third position (shown in fig. 9) with respect to the housing 3, which is intermediate between the first position and the second position, in which the shaver body 1 is open and the trimmer 2 is closed, i.e. the swing link 24 is not connected to the swinging member 11.

The electric shaver is switched on by the trimmer 2 moving from the first position to the third position and then to the second position; when the trimmer 2 moves to the third position, the switch mechanism is connected to the circuit, the shaver body 1 is started, when the trimmer 2 continues to move to the second position, the switch mechanism is still in a connected state, the shaver body 1 still works, and the swing rod 24 of the trimmer 2 is connected to the swing piece 11 and started.

The third position is arranged between the first position and the second position, the state that the shaver body 1 is opened and the trimmer 2 is not started is added, the starting of the shaver body 1 is separated from the starting of the trimmer 2, so that the shaver body 1 can be independently started without starting the trimmer 2 when only the shaver body 1 is required to be used and the trimmer 2 is not required, and the use is more convenient.

As shown in fig. 6, the transmission member 4 includes a first transmission portion 43 connected to the transmission hole 34, a moving portion 42 transversely disposed above the first transmission portion 43, a moving protrusion 41 fixed to an end of the moving portion 42 away from one end of the first transmission portion 43 and cooperating with the trimmer 2, and a second transmission portion 44 disposed below the first transmission portion 43 and pressing the connection structure with the rotation of the moving protrusion 41 to electrically connect the power source 7 and the motor 8, wherein the second transmission portion 44 has a semi-cylindrical shape; the first transmission part 43 can rotate in the transmission hole 34; when the trimmer 2 is in the first position, the vertical plane of the second transmission part 44 is in contact with the connecting structure, and when the trimmer 2 is in the third position and the second position, the arc surface of the second transmission part 44 is in contact with the connecting structure; the moving part 42 is in a drop shape, wherein the large end is connected with the first transmission part 43, and the small end is connected with the moving protrusion 41, such a structure can ensure that the moving part 42 and the first transmission part 43 have a larger fixed area, and in other embodiments, the moving part 42 in other shapes, such as an oval shape, can be selected according to actual conditions and needs.

The transmission piece 4 is located at the outer part of the housing 3 and is a moving protrusion 41 and a moving part 42, and the transmission piece 4 is located at the inner part of the housing 3 and is a first transmission part 43 and a second transmission part 44.

The transmission part 4 transmits the position change of the trimmer 2 to the moving part 42 through the moving protrusion 41 connected with the trimmer 2, the moving part 42 rotates around the transmission hole 34, so that the first transmission part 43 and the second transmission part 44 rotate along with the first transmission part, and the second transmission part 44 enables the connecting structure to be communicated with the circuit of the shaver body 1, the structure is firm and reliable, and the linkage of the trimmer 2 and the switch mechanism can be effectively realized.

A sealing ring is arranged between the transmission piece 4 and the transmission hole 34 and is positioned between the first transmission part 43 and the transmission hole 34; preventing water from entering the shaver.

As shown in fig. 6, the connecting structure includes a first conductive connecting part 5 connected to the power supply 7 and longitudinally fixed along a fixing frame 9 on which the power supply 7 is mounted, a second conductive connecting part 6 connected to the motor 8 and arranged at the bottom of the fixing frame 9 at an interval with the first conductive connecting part 5, the second conductive connecting part 6 has an elastic leg 61 extending to the transmission member 4 and connected to the first conductive connecting part 5 in an overlapping manner under the action of the transmission member 4, the elastic leg 61 is connected to the first transmission part 43 of the transmission member 4, and includes an extension part bent multiple times and cut to be connected to the first transmission part 43, and a connecting part connected to the extension part and close to the first conductive connecting part 5; the first conductive connecting piece 5 and the second conductive connecting piece 6 can effectively realize the connection and disconnection between the power supply 7 and the motor 8, the structure is simple, the assembly is convenient, in addition, an elastic supporting leg 61 which can realize the connection between the first conductive connecting piece 5 and the second metal piece is arranged between the first conductive connecting piece 5 and the second metal piece, the elastic supporting leg 61 is connected with the second transmission part 44, the elastic supporting leg 61 can be acted by the second transmission part 44 when the transmission piece 4 rotates, so the connecting structure is linked with the transmission piece 4, and the connection and disconnection of the circuit can be realized by the cooperation of the transmission piece 4 and the elastic supporting leg 61; when the trimmer 2 moves upward, the driving member 4 is driven by the trimmer 2 to rotate, so that the elastic support legs 61 are pressed to the left by the first driving portion 43, the connecting structure is communicated, the shaver body 1 is started, when the trimmer 2 moves downward, the first driving portion 43 rotates to the right, the pressing on the elastic support legs 61 is cancelled, the elastic support legs 61 return to the initial position under the self elastic action, the connecting structure is disconnected, and the shaver body 1 is closed.

In this embodiment, the first conductive connecting part 5 and the second conductive connecting part 6 are copper parts, but other conductive metal parts can be selected.

A baffle plate 91 is arranged on the fixed frame 9, and the elastic supporting leg 61 is contacted with the baffle plate and then continuously extends to the first transmission part 43; this configuration can prevent the resilient legs 61 from being over-repositioned.

The first conductive connecting piece 5 comprises a first connecting part 51 connected with the end of the power supply 7, a second connecting part 52 stabilizing the first connecting part 51 and a third connecting part 53 fixed on the fixing frame 9, wherein a buckle is formed on the second connecting part 52, the third connecting part 53 is opposite to the second transmission part 44, and two first fixing holes are formed on the third connecting part 53.

The second conductive connecting piece 6 comprises a fourth connecting portion 62 connected with the motor 8, a fifth connecting portion 63 connected with the fourth connecting portion 62, and a sixth connecting portion 64 fixed on the fixing frame 9, wherein the fifth connecting portion 63 enables the fourth connecting portion 62 to extend towards the motor 8, the fifth connecting portion 63 is close to one end of the sixth connecting portion 64, a second fixing hole for fixing the fifth connecting portion 63 is formed in the forming mode, two third fixing holes are formed in the sixth connecting portion 64, and the edge of the fixing hole is further provided with a fixing groove 65 suitable for being formed in the clamping hook connection of the fixing frame 9.

The trimmer 2 comprises a base 21, a gland 22 and a trimming component 23 fixed at the top ends of the base 21 and the gland 22, wherein the trimming component 23 can reciprocate under the driving of the swing rod 24, and the swing rod 24 is pressed and fixed by the base 21 and the gland 22; a pushing groove 221 for placing a thumb is formed in the lower surface of the pressing cover 22, a plurality of friction protrusions 222 for enhancing friction are arranged on the pushing groove 221, two pushing holes 223 arranged oppositely are formed in the pushing groove 221, two pushing protrusions 251 arranged on a pushing block 25 in the pressing cover 22 protrude from the pushing holes 223, the friction protrusions 222 are used for increasing friction between a human hand and the pressing cover 22, and the pushing protrusions 251 can enable a human hand to have an action point when the pressing cover 22 is moved, so that the hand is prevented from slipping.

The base 21 is further provided with a swing hole 213 for the rod 241 of the swing rod 24 to extend to the swing member 11.

As shown in fig. 7, a track 211 adapted to slide the moving protrusion 41 therein is disposed at a position of the base 21 relative to the transmission member 4, when the trimmer 2 changes its position, the track 211 moves along with the moving protrusion, and the sliding protrusion is driven by the track 211 to slide along the track 211, that is, the base 21 drives the transmission member 4 to rotate relative to the housing 3.

The rails 211 include a first rail 2111 disposed parallel to the lateral direction of the base 21 for having the moving protrusion 41 disposed therein when the trimmer 2 is in the first position, a second rail 2112 connected at an angle to the first rail 2111 for having the moving protrusion 41 enter therein from the first rail 2111 when the trimmer 2 enters the third position, and a third rail 2113 disposed parallel to the longitudinal direction of the base 21 for having the moving protrusion 41 slide therein from the second rail 2112 when the trimmer 2 enters the second position; when the trimmer 2 moves from the second position to the first position, the rail 211 moves downward with the trimmer 2, and the moving protrusion 41 reaches the first rail 2111 from the third rail 2113 via the second rail 2112.

When the base 21 moves upwards along with the trimmer 2, the track 211 enables the transmission member 4 to rotate anticlockwise around the transmission hole 34, at the moment, the vertical plane of the second transmission part 44 faces downwards, the cambered surface is connected with the second transmission part 44, and the elastic support legs 61 are close to and contacted with the first conductive connecting member 5; when the base 21 moves downward with the trimmer 2, the track 211 enables the driving member 4 to rotate clockwise, the arc surface rotates in a direction away from the elastic leg 61, the pressing on the elastic leg 61 is released, and the elastic leg 61 returns in a direction away from the first conductive connecting member 5.

The first rail 2111, the second rail 2112 and the third rail 2113 correspond to the first position, the third position and the second position respectively, and the rail 211 can guide the transmission member 4 to rotate, so that the transmission member 4 rotates to the corresponding position to complete the starting of the electric shaver, and the simple structure is adopted to realize complex operation.

The track 211 is arranged to drive the transmission member 4 to rotate when the trimmer 2 moves, so as to realize connection and disconnection of the connection structure; the first 2111, second 2112 and third 2113 track of the track 211 enable the transmission member 4 to reach the target rotation state of the transmission member 4 in the first, second and third positions of the trimmer 2, i.e. the cambered surface of the second transmission part 44 of the transmission member 4 in the third and second positions is connected with the resilient leg 61 and pressed against the first conductive connecting member 5.

The rear surface of the base 21 is further provided with a rotation groove adapted to the movement portion 42 to rotate therein.

A guiding and positioning structure capable of guiding the trimmer 2 to be positioned at the first position, the second position and the third position is further arranged between the trimmer 2 and the shaver body 1, the structure can provide a user with a click-and-click feeling, so that the user can conveniently identify whether the trimmer 2 reaches a position for opening the shaver body 1 or the trimmer 2 or not, and can conveniently operate the trimmer 2 to accurately reach the corresponding position; the guiding and positioning structure comprises a guide rail 212 longitudinally arranged on the base 21 and a guiding protrusion 32 arranged at the position of the shell 3 corresponding to the guide rail 212, the guide rail 212 can slide along the guiding protrusion 32 under the driving of the trimmer 2, two pairs of positioning protrusions (216,217) which are arranged in a pairwise corresponding manner and respectively correspond to the third position and the second position are arranged on two side walls of the guide rail 212 at intervals, and concave parts 321 suitable for the positioning protrusions (216,217) which are arranged in a pairwise corresponding manner to be clamped are formed on two sides of the guiding protrusion 32; the guide projection 32 is integrally formed with the housing 3.

Two pairs of first positioning protrusions 216 and two pairs of second positioning protrusions 217 which are correspondingly arranged on two side walls of the guide rail 212 at intervals, the first positioning protrusions 216 are matched with the concave portions 321 to position a third position, and the second positioning protrusions 217 are matched with the concave portions 321 to position a second position.

When the trimmer 2 moves, the guide rail 212 is driven to move upwards or downwards, the guide protrusion 32 is fixed on the housing 3, the guide rail 212 moves up and down along the guide protrusion 32, and the positioning protrusions (216,217) are clamped into the concave part 321 for positioning. The positioning protrusions (216,217) on the guide rail 212 are matched with the concave parts 321 on two sides of the guide protrusion 32, so that the trimmer 2 can be accurately positioned to the first position, the third position and the second position, and has obvious click feeling, and the user is helped to clearly position the corresponding position, and operation errors are avoided.

The two side walls of the guide rail 212 have certain elasticity, and the guide rail 212 can expand outwards when the positioning protrusions (216,217) move along the two sides of the guide protrusion 32; the base 21 is provided with a mounting groove 214, two guide members 215 arranged in parallel are fixed at one end of the mounting groove 214 and extend to the other end along the longitudinal direction of the mounting groove 214 to form the guide rail 212, the two guide members 215 are respectively bent towards two side walls at the other end of the mounting groove 214 and connected with the two side walls, and the guide rail 212 can be elastically opened and closed at the other end close to the mounting groove 214.

In the above structure, the guide rail 212 has elasticity, and in the moving process of the guide rail 212, the guide rail 212 can be tightly attached to two sides of the guide protrusion 32, and the positioning protrusions (216,217) can be ensured to be clamped into the concave part 321, and can be separated from the concave part 321 after being subjected to a certain pushing force, so that the trimmer 2 is prevented from being easily moved to cause misoperation, and can be elastically opened and closed without affecting the movement of the trimmer 2.

The guide rail 212 is provided with a stationary groove 218 above the first positioning protrusion 216, and the stationary groove is suitable for the guide protrusion 32 to be placed in for positioning the first position; when the guide projection 32 is within the rest slot 218, the trimmer 2 is in the first position.

The spacing between adjacent positioning protrusions (216,217) is smaller than the length dimension of the guide protrusion 32; this structure can prevent the guide protrusion 32 from being trapped between the first positioning protrusion 216 and the second positioning protrusion 217, which may cause a positioning error, and the trimmer 2 is not moved to the corresponding position, so that the trimmer 2 cannot be normally started, which may result in a poor use experience.

The guide projection 32 also comprises a convex part 322 which is arranged at two ends of the concave part 321 and can pass through a channel formed by the positioning projections (216,217) which are correspondingly arranged in pairs; the guide projection 32 is shaped like an '8'; the surface of the guide protrusion 32 is smooth, so that the guide protrusion 32 can move in the guide rail 212 conveniently,

the housing 3 is provided with a groove 31, the trimmer 2 moves in the groove 31, and a limiting structure for limiting the movement of the trimmer 2 is arranged between the groove 31 and the trimmer 2; the limiting structure comprises limiting grooves 33 arranged on the groove walls at two sides of the groove 31, and limiting bulges 224 which are arranged at the positions of the trimmer 2 corresponding to the limiting grooves 33 and can slide in the limiting grooves 33; the length of the limiting groove 33 is not less than the distance that the trimmer 2 can move relative to the housing 3, when the trimmer 2 is located at the first position, the limiting bulge 224 is located at or near the bottom end of the limiting groove 33, and the trimmer 2 abuts against the bottom of the groove 31; when the trimmer 2 is located at the second position, the limiting protrusion 224 is connected with the top end of the limiting groove 33.

As shown in fig. 4, the groove 31 is "U" shaped.

The engagement of the stopper projection 224 with the stopper groove 33 and the recess 31 restricts the moving distance of the trimmer 2 and fixes the trimmer 2 to the housing 3, thereby preventing the trimmer 2 from being easily removed.

Example 2

The trimmer 2 moves on the housing 3 and has two positions relative to the housing 3, including a first position in which the trimmer 2 is separated from the swinging member 11 and the shaver body 1 and the trimmer 2 are in a closed state and are not in operation; in the second position, the swing link 24 is connected to the swing member 11, and the shaver body 1 and the trimmer 2 are in the opened state and operate normally.

The rails 211 include a first rail 2111 disposed parallel to the lateral direction of the base 21 for allowing the moving protrusion 41 to be placed therein when the trimmer 2 is in the first position, a second rail 2112 connected at an angle to the first rail 2111 for allowing the moving protrusion 41 to enter therein from the first rail 2111 when the trimmer 2 is brought into the second position; in the first position, the moving protrusion 41 is in the first track, and in the second position, the moving protrusion is in the second track 2112.

A guiding and positioning structure capable of guiding the trimmer 2 to be positioned to a first position and a second position is further arranged between the trimmer 2 and the shaver body 1; the guiding and positioning structure comprises a guide rail 212 longitudinally arranged on the base 21 and a guiding protrusion 32 arranged at the position of the housing 3 corresponding to the guide rail 212, the guide rail 212 can slide along the guiding protrusion 32 under the driving of the trimmer 2, a pair of positioning protrusions 216 correspondingly arranged and corresponding to the second position are arranged on two side walls of the guide rail 212 at intervals, and concave portions 321 suitable for the positioning protrusions 216 to be clamped in are formed on two sides of the guiding protrusion 32.

When the trimmer 2 is moved from the first position to the second position, the guide rail 212 slides up along the guide projection 32, the concave portion 321 of the guide projection 32 slides out of the stationary groove 218 to be engaged with the positioning projection 216, and the trimmer 2 is positioned to the second position.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the utility model.

Claims (10)

1. A guiding and positioning structure of an electric shaver trimmer is characterized in that the guiding and positioning structure is arranged between a trimmer (2) and a shaver body (1) of the electric shaver to position at least two positions of the trimmer (2) relative to the shaver body (1), and comprises a guide rail (213) arranged on a base (21) of the trimmer (2), a guiding protrusion (32) which is arranged at a position of a shell (3) of the shaver body (1) relative to the guide rail (213) and can slide along the guide rail (213) to enable the trimmer (2) to change between the at least two positions, at least one pair of positioning protrusions which correspond to each other and correspond to at least one position are arranged at intervals on two side walls of the guide rail (213), and two sides of the guiding protrusion (32) are provided with a concave part suitable for the positioning protrusions which correspond to each other to be clamped into the trimmer (2) to be positioned at the at least one position (321).

2. The structure of claim 1, wherein the base (21) is provided with a mounting groove (214), two guide members (215) arranged in parallel are fixed to one end of the mounting groove (214) and are respectively bent toward and connected to two side walls to form the guide rail (213) extending along the longitudinal direction of the mounting groove (214) to the other end, and the guide rail (213) is elastically openable and closable near the other end of the mounting groove (214).

3. The guide positioning structure of an electric razor trimmer according to claim 1, wherein the trimmer (2) has a first position closing the razor body (1) and the trimmer (2) with respect to the housing (3), a second position actuating the razor body (1) and the trimmer (2), and a third position actuating the razor body (1) and closing the trimmer (2), the third position being intermediate the first and second positions.

4. A guide positioning structure of an electric shaver trimmer according to claim 3, wherein two pairs of first positioning protrusions (216) and second positioning protrusions (217) are spaced from both side walls of the guide rail (213) and are arranged correspondingly, the first positioning protrusions (216) are engaged with the recesses (321) to position the third position, and the second positioning protrusions (217) are engaged with the recesses (321) to position the second position.

5. The guiding and positioning structure of an electric shaver trimmer as set forth in claim 4, wherein the guide rail (213) above the first positioning projection (216) is provided with a stationary groove (218) adapted for the guide projection (32) to be placed in for positioning the first position.

6. The guide positioning structure of an electric razor trimmer according to claim 4, wherein the spacing between adjacent positioning projections is smaller than the length dimension of the guide projection (32).

7. The structure of claim 1, wherein said guide projections (32) further comprise protruding portions (322) provided at both ends of said recessed portion (321) and capable of forming a passage by said positioning projections provided in correspondence with each other.

8. The guide positioning structure of an electric razor trimmer according to claim 7, wherein the guide projection (32) has an 8-shape.

9. The guiding and positioning structure of an electric shaver trimmer according to claim 1, wherein the housing (3) is provided with a groove (31), the trimmer (2) moves in the groove (31), and a limiting structure for limiting the movement of the trimmer (2) is provided between the groove (31) and the trimmer (2).

10. The guiding and positioning structure of an electric shaver trimmer as set forth in claim 9, wherein said stopper structure comprises stopper grooves (33) provided on both side groove walls of said recess (31), and stopper projections (224) provided at positions of said trimmer (2) opposite to said stopper grooves (33) and slidable in said stopper grooves (33).

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