CN109500844B - Self-locking mechanism of shaver and shaver with self-locking mechanism - Google Patents

Abstract

The invention provides a self-locking mechanism of a shaver and the shaver with the self-locking mechanism. The self-locking mechanism of the shaver provided by the invention comprises a back knife, a locking plate, a locking piece component and a connecting arm connected with a shaver main shaft of the shaver, wherein the back knife can drive the locking piece component to move between an initial position and a locking position along the locking plate, the locking piece component is not contacted with the connecting arm in the initial position and the shaver can swing freely under the action of external force, and the locking piece component is in limit connection with the connecting arm in the locking position and the shaver cannot swing under the action of external force. The self-locking mechanism can control the lock component to switch between a locking position and an initial position under the drive of the back knife, so that the effect of shaving is prevented from being influenced due to swinging type floating of the razor when shaving beards, and the self-locking mechanism is safe to use.

Description

Self-locking mechanism of shaver and shaver with self-locking mechanism

Technical Field

The invention relates to the technical field of shavers, in particular to a shaver with a self-locking mechanism.

Background

The shaver is almost a shaving tool which is required by every adult man every day, and can be classified into a manual shaver and an electric shaver according to the principle of shaving work. The manual shaver has a very simple structure, mainly comprises a cutter head and a cutter handle, and realizes shaving by manual operation; the electric shaver adopts the principle of shaving by a cutter head rotating at a high speed, is more convenient and faster than manual operation, and has good effect. Currently, the main electric shavers in the market are roughly classified into two types: one is a rotary cutter head, and the other is a reciprocating cutter head; people purchase according to their own preferences. The general reciprocating type tool bit shaves comparatively cleanly, but noise and vibrations are great, and comfortable type is not good. The rotary cutter head has high shaving speed and good comfort, but the shaving effect is not thorough enough. For men who shave in the morning, the rotary shaver is certainly more convenient to use. However, the two electric razor heads are very thick for the beard, and the beard is hard for men, and cannot fully meet the requirements; the existing solution is to shave by manual temple knives, but the temple knives are generally all independent and are inconvenient to carry independently. However, when the electric shaver compatible with the temple-knife structure is used for shaving, as the main shaft of the shaver head is supported on the cutter frame, the shaver swings along with the concave-convex change of the face, uncomfortable feeling is easily brought to a user when shaving the beards, the shaving time is correspondingly increased, and the skin is easily scratched if the strength is not well controlled. Therefore, in order to solve the existing problem, a self-locking structure capable of timely opening or closing the floating function of the electric shaver according to the use requirement is needed, so that the shaver can be freely selected among different requirement groups.

Disclosure of Invention

In order to solve the technical problems, the invention provides a self-locking mechanism of a shaver and the shaver with the self-locking mechanism.

The self-locking mechanism of the shaver comprises a back cutter, a locking plate, a locking piece component and a connecting arm connected with a shaver main shaft of the shaver, wherein the back cutter can drive the locking piece component to move between an initial position and a locking position along the locking plate, the locking piece component is not contacted with the connecting arm in the initial position and the shaver can swing freely under the action of external force, the locking piece component is in limit connection with the connecting arm in the locking position and the shaver cannot swing under the action of external force, the locking piece component comprises a locking piece body and a locking piece which is connected with the locking piece body and can be in limit connection with the connecting arm, the flexible limit foot is arranged on the locking piece body and provided with a connecting end connected with the locking piece body, a free end of the flexible limit foot is convexly provided with a locking block, a locking groove is formed in the locking piece, and the locking block and the locking groove are mutually buckled in the locking piece in the locking position.

Furthermore, the back cutter is provided with at least one linkage push rod, and the lock body is provided with a sliding groove and a locking adjusting groove which are mutually parallel and mutually communicated, so that the lock body is provided with the flexible limit foot, and the sliding groove is used for the linkage push rod to slide.

Further, the locking block protrudes towards the locking adjusting groove, the flexible limiting foot is provided with a linkage block protruding towards the sliding groove, the linkage push rod is driven to move when sliding to a position where the linkage block is in butt limit, and the linkage push rod is pressed by the flexible limiting foot to push the locking block into the locking groove when sliding to a position opposite to the locking block.

Further, the lock piece comprises a guide sleeve and two clamping arms connected with the guide sleeve, a guide rod which can extend into the guide sleeve is arranged on the connecting arm in a protruding mode towards the lock piece, and the two clamping arms can clamp the connecting arm.

Further, the connecting arm is provided with a through hole in a penetrating manner along the moving direction of the back knife, and the two clamping arms respectively extend into the corresponding through holes.

Further, the lock piece is provided with a lock rod with a non-circular cross section, the connecting arm is provided with a lock hole with a non-circular cross section, and the lock rod can extend into the lock hole under the pushing of the back knife.

Further, a guide rail for sliding the locking component is arranged on the locking piece, and a guide groove matched with the guide rail is arranged on the locking component.

Further, the shaver according to the present invention comprises an outer housing and a cutter head assembly mounted on the outer housing, and further comprises a self-locking mechanism as described above.

Further, the outer shell is provided with a mounting groove, a mounting cavity is formed in the outer shell, the locking plate and the locking piece component are located in the mounting cavity, the back knife can be slidably arranged on the mounting groove, the knife head component comprises a shaver main shaft rotatably arranged on the outer shell and a shaver arranged on the shaver main shaft, and the connecting arm can be linked with the shaver main shaft.

The invention has the beneficial effects that: the self-locking mechanism of the shaver can control the lock component to switch between a locking position and an initial position under the drive of the back knife, so that the effect of shaving is prevented from being influenced due to swinging type floating of the shaver when the shaver is used for shaving beards, the shaver is safe to use, the skin is not scratched due to uneven operation force, the shaver is safer to use, and the shaver is convenient to operate; the flexible limiting feet are arranged on the lock piece body and matched with the locking grooves of the locking piece, so that the back knife can drive the lock piece assembly to be more smooth when being converted between the initial position and the locking position, and each part can be accurately returned when the locking position is switched to the initial position; the sliding groove and the locking adjusting groove which are parallel to each other and communicated with each other are formed in the lock body so as to form the flexible limiting foot, other auxiliary components are not required to be additionally arranged, the flexible limiting foot is integrally formed on the lock body, and the lock is convenient to install and form, and is stable and firm in structure.

Drawings

Fig. 1 is an exploded perspective view of a shaver according to the present invention.

Fig. 2 is an exploded perspective view of another angle of the shaver according to the present invention.

Fig. 3 is a schematic perspective view of the lock assembly in the initial position.

Fig. 4 is a schematic front view of the lock assembly in the initial position.

Fig. 5 is a schematic perspective view of the lock assembly in the locked position.

Fig. 6 is a partial enlarged view at a in fig. 4.

Fig. 7 is a schematic structural view of the lock assembly.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Fig. 1 to 7 are views showing a preferred embodiment of a shaver provided with a self-locking mechanism according to the present invention, in which the shaver includes a housing 1, a cutter head assembly 2 mounted at one end of the housing 1, and a self-locking mechanism 3, and the housing 1 is provided with a mounting groove 4. The outer housing 1 comprises an upper shell 11 and a lower shell 12, in this embodiment the mounting groove 4 is provided in the upper shell 11 of the outer housing 1. The shaving head assembly 2 comprises a shaving head cover 22, a shaving razor main shaft rotatably mounted on the outer housing 1, a shaving razor 23 mounted on the shaving razor main shaft, and a motor 24 for driving the shaving razor 23 to operate. The razor spindle is shielded by the bit housing 22 in fig. 1 and 2 and is therefore not shown in the drawings. Both ends of the razor spindle are rotatably mounted on the inner housing of the bit housing 22. Since the connection and mounting between the razor 23 and the motor 24 are not different from those in the prior art, the description thereof will be omitted. In particular, the self-locking mechanism 3 of the shaver comprises a back-rest blade 31, a locking tab 32, a locking member assembly and a connecting arm 33 connected to the main shaft of the shaver. A mounting cavity is formed in the outer housing 1, and the locking tab 32 and the locking member assembly are located in the mounting cavity. The back knife 31 is slidably provided in the mounting groove 4, and the connecting arm 33 is interlocked with the razor main shaft. The connecting arm 33 is provided with a through hole 14, and the razor spindle is tightly matched to extend into the through hole 14 and synchronously swings along with the connecting arm 33. Specifically, the connecting arm 33 is swingably mounted on a motor base of the motor 24, and the motor 24 is mounted on the motor base. The user pushes the back knife 31 along the mounting groove 4, and the back knife 31 can drive the lock assembly to reciprocate between an initial position and a locking position along the lock piece 32. In the initial position, the back knife 31 is far away from the knife head assembly 2, the lock component is not contacted with the connecting arm 33, at the moment, the razor main shaft can rotate along with the swinging of the connecting arm 33, and when shaving, the razor can swing freely under the action of external force formed by the concave-convex change of the face of a person; in the locked position, the back blade 31 approaches the cutter head assembly 2, and the lock member assembly is brought into a limit connection with the link arm 33, and at this time, since the swing of the link arm 33 is limited by the lock member assembly, the razor main shaft mounted on the link arm 33 cannot be rotated (swung) because the swing of the link arm 33 is limited. The locking tab 32 may be integrally formed with the lower housing 12, or as shown in this embodiment, the locking tab 32 and the lower housing 12 may be two separate pieces. In this embodiment, the locking piece 32 is detachably connected to the lower shell 12, and the upper shell 11 and the lower shell 12 and the locking piece 32 and the lower shell 12 are both in snap connection, which can be further fixed by screws. The back knife 31 is provided with a flexible insert 13, and in the initial position, the insert 13 is inserted into a small slot in communication with the mounting slot 4. The operator pushes the back knife 31, and after the pushing force overcomes the acting force between the inserting piece 13 and the small inserting groove, the back knife 31 can be pushed to move. Of course, the back knife 31 may be positioned at the initial position by a snap-fit or tension spring connection. The "the lock component is in limit connection with the connecting arm 33 when in the locking position" means that the connecting arm 33 is limited by the lock component and cannot swing when in the locking position, so that the razor main shaft installed on the connecting arm 33 is also in a limited state, that is, the razor 23 connected with the razor main shaft is also in a relatively fixed state, and the razor 23 cannot float (or swing by taking the razor main shaft as the center) even if the razor is subjected to the external force of uneven face when shaving the beard, so that the skin can be effectively prevented from being scratched; and because the razor 23 is in a stable connection state, the force for shaving beards is more uniform, and the razor is more comfortable to use, so that the force for shaving beards can be conveniently controlled as in the traditional manual razor, and the overall effect of shaving Hu Tixu can be improved.

Specifically, the lock assembly includes a lock body 34 and a lock 35 connected to the lock body 34 and capable of limiting connection with the connecting arm 33. The lock body 34 and the lock 35 may be detachably connected or integrally injection molded. The lock body 34 is provided with a flexible limiting pin 341, and the flexible limiting pin 341 is provided with a connecting end 342 connected with the lock body 34 and a free end 343 which is not connected with the lock body 34 and can move under the pushing of external force. The free end 343 of the flexible limiting leg 341 is provided with a locking block 345 in a protruding manner, a locking groove 321 is formed on the locking piece 32, and the locking block 345 and the locking groove 321 are mutually buckled when the locking piece 32 is at the locking position. The flexible limiting feet 341 are arranged on the lock piece body 34 and matched with the locking grooves 321 of the locking piece 32, so that the back knife 31 drives the lock piece assembly to be smoother when being converted between the initial position and the locking position, and each part can be accurately returned when the locking position is switched to the initial position. The back knife 31 is provided with two linkage push rods 311, and the linkage push rods 311 can be integrally formed with the back knife 31 or can be detachably arranged on the back knife 31. Further, corresponding to the arrangement of the linkage push rod 311, the lock body 34 is provided with two sets of parallel and mutually communicated sliding grooves 346 and locking adjustment grooves 347, so that the flexible limiting pin 341 is formed on the lock body 34. The linkage push rod 311 of the back knife 31 extends into the chute 346, and the linkage push rod 311 slides along the chute 346 under the linkage of the back knife 21. Specifically, the sliding groove 346 and the locking adjusting groove 347 are communicated with each other to form an L-shaped groove. The locking block 345 protrudes towards the locking adjustment groove 347, the flexible limiting foot 341 has a linkage block 348 protruding towards the sliding groove 346, when the linkage push rod 311 slides to a position where the linkage block 348 abuts against and is limited, the linkage push rod 311 can drive the locking component to move under the driving of the back knife 31, and when the linkage push rod 311 slides to a position opposite to the locking block 345, the flexible limiting foot 341 is pressed to push the locking block 345 into the locking groove 321. The lock body 34 is provided with the sliding groove 346 and the locking adjusting groove 347 which are parallel to each other and communicated with each other to form the flexible limiting pin 341, other auxiliary components are not required to be additionally arranged, and the flexible limiting pin 341 is integrally formed on the lock body 34, so that the lock is convenient to install and form, and the structure is stable and firm. When the back knife 31 slides from the locking position to the initial position, the linkage push rod 311 cancels the pressing of the free end 343 of the flexible limiting pin 341, the free end 343 of the flexible limiting pin 341 returns, and the locking block 345 is disengaged from the locking groove 321. At this time, the swing limit of the cutter head assembly 2 is released, and the cutter head assembly can swing freely in a floating manner under the action of external force. In this embodiment, two linkage push rods 311 are provided and two flexible limiting pins 341 are correspondingly provided, however, in practical implementation, only one linkage push rod 311 and only one flexible limiting pin 341 are correspondingly provided, so that the effect of limiting and fixing in the locking position can be achieved.

Specifically, the relative positional relationship and the connection relationship between the respective members of the shaver from the initial position to the lock position will be further described: when the interlocking push rod 311 of the back knife 31 is positioned in the sliding groove 346 and far away from the free end 343 of the flexible limiting foot 341 in the initial position, the interlocking push rod 311 of the back knife 31 slides along the mounting groove 4 and gradually approaches the free end 343 of the flexible limiting foot 341 in the sliding groove 346, when the interlocking push rod 311 moves to a position mutually pressed by the interlocking block 348, at the moment, due to the interlocking limiting action of the interlocking block 348, the lock body 34 moves together under the pushing of the back knife 31 until the lock body 35 is in limiting connection with the connecting arm 33, at the moment, the back knife 31 is pushed continuously, the back knife 31 bypasses the interlocking block 348 after overcoming the clamping force of the interlocking block 348, and the locking block 345 is pushed into the locking groove 321 until the interlocking push rod 311 moves to a position opposite to the free end 343 of the flexible limiting foot 341, at the moment, all components are positioned at the locking position, and the razor main shaft cannot rotate due to the limiting of the connecting arm 33.

In order to improve the braking accuracy of the locking component in the process of limiting the connecting arm 33, the locking component 35 is provided with a guide sleeve 351 and two clamping arms 352 connected with the guide sleeve 351, the connecting arm 33 protrudes towards the locking component 35 to be provided with a guide rod 331 which can extend into the guide sleeve 351, and the two clamping arms 352 can clamp the connecting arm 33. After such setting, guarantee that lock 35 forms certain guide effect when removing, two arm lock 352 can be accurate centre gripping linking arm 33 to the swing of spacing linking arm 33, the structure sets up simply, easy dismounting and maintenance. Further, small through holes 332 may be formed in the connecting arm 33 along the moving direction of the back knife 31, and the two clamping arms 352 respectively extend into the corresponding small through holes 332.

Of course, in the embodiment, the connection between the lock member 35 and the connecting arm 33 is not limited to the connection disclosed in the embodiment, and the lock member 35 and the connecting arm 33 may be connected by plugging, fastening, or the like, and the rotation of the razor main shaft may be limited by limiting the swing of the connecting arm 33. For example, specifically, a lock rod having a non-circular cross section may be provided on the lock member 35, and the connecting arm 33 may be provided with a lock hole having a non-circular cross section, so that the lock rod may be inserted into the lock hole under the pushing of the back blade 31. Because the lock rod and the lock hole are both non-circular, when the lock rod is inserted into the lock hole, the space rotation of the connecting arm 33 relative to the lock piece 35 is limited, and the connecting arm 33 can be prevented from swinging, so that the aim of limiting the connecting arm 33 can be fulfilled. In particular, in order to facilitate the guiding movement of the locking assembly, the locking piece 32 is provided with a guide rail 322 for sliding the locking assembly, and the locking assembly is provided with a guide groove (not shown due to the view angle in the drawing) matched with the guide rail 322. Of course, the guide rail 322 may be provided in the lock unit, and a guide groove may be provided in the lock piece 32 to be engaged therewith.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. A self-locking mechanism of a shaver, characterized in that: the razor comprises a back cutter, a locking plate, a locking piece component and a connecting arm connected with a razor main shaft of the razor, wherein the back cutter can drive the locking piece component to move between an initial position and a locking position along the locking plate, the locking piece component is not contacted with the connecting arm and the razor can swing freely under the action of external force when in the initial position, the locking piece component is in limit connection with the connecting arm and the razor cannot swing under the action of external force when in the locking position, the locking piece component comprises a locking piece body and a locking piece which is connected with the locking piece body and can be in limit connection with the connecting arm, the locking piece body is provided with a flexible limit foot, the flexible limit foot is provided with a connecting end connected with the locking piece body and a free end not connected with the locking piece body, the free end of the flexible limit foot is provided with a locking piece in a protruding mode, a locking groove is formed in the locking piece, and the locking piece and the locking groove are mutually buckled when in the locking position.

2. The self-locking mechanism of a shaver as set forth in claim 1, wherein: the back cutter is provided with at least one linkage push rod, and the lock body is provided with a sliding groove and a locking adjusting groove which are mutually parallel and mutually communicated, so that the lock body is provided with the flexible limit foot, and the sliding groove is used for the linkage push rod to slide.

3. The self-locking mechanism of a shaver as set forth in claim 2, wherein: the locking block protrudes towards the locking adjusting groove, the flexible limiting foot is provided with a linkage block protruding towards the sliding groove, the linkage push rod drives the locking piece assembly to move when sliding to a position where the linkage block is in butt joint with the limiting position, and the flexible limiting foot is pressed to push the locking block into the locking groove when the sliding push rod slides to a position opposite to the locking block.

4. The self-locking mechanism of a shaver as set forth in claim 1, wherein: the lock piece comprises a guide sleeve and two clamping arms connected with the guide sleeve, a guide rod capable of extending into the guide sleeve is arranged on the connecting arm in a protruding mode towards the lock piece, and the two clamping arms can clamp the connecting arm.

5. The self-locking mechanism of a shaver as set forth in claim 4, wherein: the connecting arms penetrate through the through holes along the moving direction of the back knife, and the two clamping arms extend into the corresponding through holes respectively.

6. The self-locking mechanism of a shaver as set forth in claim 1, wherein: the lock piece is provided with a lock rod with a non-circular section, the connecting arm is provided with a lock hole with a non-circular section, and the lock rod can extend into the lock hole under the pushing of the back knife.

7. Self-locking mechanism of a shaver according to claim 1 or 2, wherein: the locking plate is provided with a guide rail for sliding of the locking assembly, and the locking assembly is provided with a guide groove matched with the guide rail.

8. A razor, includes shell and installs the tool bit subassembly on this shell, its characterized in that: the shaver further comprising a self-locking mechanism according to any one of claims 1 to 7.

9. The razor according to claim 8, wherein: the outer shell is provided with a mounting groove, a mounting cavity is formed in the outer shell, the locking plate and the locking piece component are located in the mounting cavity, the back knife can slide and is arranged on the mounting groove, the knife head component comprises a shaver main shaft which can be rotatably arranged on the outer shell and a shaver arranged on the shaver main shaft, and the connecting arm can be linked with the shaver main shaft.

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