Reciprocating type shaver with tool bit convenient to disassemble

Abstract

The reciprocating shaver comprises a shaver frame, a shaver net which is installed on the shaver frame and allows beards to penetrate backwards, the shaver head is arranged behind the shaver net, a driving motor is arranged behind the shaver frame and connected with an eccentric shaft in a driving mode, the shaver head is provided with a driving hole, and the eccentric shaft extends forwards into the driving hole. The driving motor drives the eccentric shaft to rotate and laterally push and extrude the hole wall of the driving hole in a reciprocating mode, the tool bit is driven by the eccentric shaft to laterally reciprocate so that the tool bit and the tool net jointly cut off beards stretching into the rear side of the tool net, a guide cage is defined by the tool net and the tool rest, no lateral guide rod is arranged in the guide cage, and the guide cage surrounds the peripheral side of the tool bit to laterally guide the tool bit. And the eccentric shaft specifically drives the tool bit to do lateral reciprocating motion along the inner wall of the guide cage. According to the shaver, an additional lateral guide rod is omitted, the guide cage composed of the shaver net and the shaver rest is used for guiding the shaver head, when a user disassembles the shaver head, the shaver net is disassembled firstly, then the shaver head can be disassembled from the shaver rest, and operation is easy and convenient.

Description

Technical Field

[0001] This utility model relates to reciprocating shavers, specifically to reciprocating shavers with easily detachable heads. Background Technology

[0002] The applicant's previously filed utility model patent ZL202322366322.5 discloses a reciprocating shaver, which includes a shaver holder, on which a front foil and a rear side guide rod are mounted. The side guide rod acts as a guide, guiding the shaver head to ensure that the shaver head can only perform lateral reciprocating motion along a predetermined path for shaving. A shaver head is fitted onto the side guide rod, and a drive motor is located behind the shaver head. The drive motor drives an eccentric shaft mounted on the shaver head. The eccentric shaft extends forward into the drive hole of the shaver head. The drive motor drives the eccentric shaft to rotate, thereby laterally reciprocating and pushing against the wall of the drive hole of the shaver head. Driven by this, the shaver head performs lateral reciprocating motion along the side guide rod, thus cutting the beard hairs that have extended into the rear of the foil together with the foil. When designing this shaver, the inventor, due to the industry's common mindset that "a guide must be specially designed to guide the shaver head," specially designed a side guide rod to guide the shaver head. However, this design made the shaver head disassembly complicated: when disassembling the shaver head (for example, when taking the shaver head out for cleaning or when replacing the shaver head), the user not only needs to remove the foil, but also needs to remove the side guide rod from the shaver holder, and finally remove the shaver head from the side guide rod. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a reciprocating shaver with a convenient detachable blade head.

[0004] The inventors discovered that even without designing additional side guide rods, the blade foil and blade holder alone can effectively constrain the movement path of the razor head, guide the movement of the razor head, and ensure that the razor head performs reciprocating shaving motions. Eliminating the side guide rods allows users to more easily disassemble the razor head. Based on this, the inventors designed the reciprocating razor of this utility model.

[0005] To solve the above-mentioned technical problems, the present invention provides a reciprocating shaver with a conveniently detachable shaver head, comprising a shaver holder, a foil for the beard to pass through, a shaver head located behind the foil, and a drive motor connected to the shaver holder. The shaver head has a drive hole, and the eccentric shaft extends forward into the drive hole. The drive motor drives the eccentric shaft to rotate and laterally reciprocate, pushing against the wall of the drive hole. The shaver head, driven by this, performs a lateral reciprocating motion, thereby cutting the beard that has extended into the back of the foil together with the foil. The foil and the shaver holder form a guide cage, which has no lateral guide rods. The guide cage surrounds the shaver head and provides lateral guidance. The eccentric shaft specifically drives the shaver head to perform a lateral reciprocating motion along the inner wall of the guide cage.

[0006] Furthermore, a cover is placed in front of the blade mesh, and the cover has a ventilation opening that connects to the outside.

[0007] Furthermore, the vents are specifically located on the front and / or side walls of the cover.

[0008] Furthermore, the fidget spinner shaver consists of a shaver body composed of a shaver holder, a shaver foil, a shaver head, an eccentric shaft, and a drive motor. A grip is rotatably mounted on the shaver body for the user to hold the shaver, and the shaver body can rotate relative to the grip.

[0009] Furthermore, the razor body is a flat body, and the grip is specifically mounted on the longitudinal wide surface of the flat body, with its rotation axis being the transverse axis.

[0010] Furthermore, a spring is provided to push the cutter head forward, causing it to press against the cutter mesh.

[0011] Furthermore, the shaving unit consists of the foil, the shaving head, and the shaving holder, while the drive motor and the eccentric shaft form the drive unit. The shaving unit is mounted on the drive unit and can be removed from the drive unit. After removal, the drive hole wall of the shaving unit's shaving head disengages from the eccentric shaft.

[0012] Furthermore, the shaving unit is specifically detachably mounted on the drive unit in the form of a magnetic drive unit.

[0013] This shaver eliminates the need for additional side guide rods, instead using a guide cage composed of a foil and a shaver holder to guide the shaver head. When removing the shaver head, the user first removes the foil, and then the shaver head can be detached from the shaver holder, making the operation simple and convenient. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a reciprocating razor.

[0015] Figure 2 This is a diagram showing the reciprocating shaver with the cap open.

[0016] Figure 3 This is a schematic diagram of the shaving unit of a reciprocating shaver after it has been removed.

[0017] Figure 4 This is an exploded view of the shaving unit.

[0018] Figure 5 It is a three-dimensional cross-sectional view of the shaving unit.

[0019] Figure 6 It is a schematic diagram of the drive unit and the shaving unit, and the diagram also shows a running light.

[0020] Figure 7 This is a cross-sectional view of the locking mechanism locking the cover.

[0021] Figure 8 This is a schematic diagram showing the grip mounted on the longitudinal width of the razor body. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to specific embodiments.

[0023] Reciprocating razors Figure 1 and Figure 3 The device includes a protective casing 1, a drive unit 2 housed inside the casing 1, and a shaving unit 3 located on the front side of the drive unit 2. The drive unit 2 has a first magnet 201, and the shaving unit 3 has a second magnet 301. The second magnet 301 magnetically attracts the first magnet 201, and the shaving unit 3 is thus magnetically attached to the drive unit 2. After installation, it is as follows: Figure 2 As shown. See Figure 1 and Figure 2 The protective shell 1 has a cover 4 hinged to its left end, which covers the shaving unit 3 in front of it. A locking mechanism 5 is located on the right end of the protective shell 1 to lock the cover 4, preventing it from being rotated open under normal conditions. The locking mechanism 5 has an unlocking part 51 exposed to the right, and the drive unit 2 has a control switch 21 exposed to the right. In use, the user presses the unlocking part 51 of the locking mechanism 5 to release the lock on the cover 4, then rotates the cover 4 to open it, places the shaving unit 3 on the skin, and presses the control switch 21 of the drive unit 2 to activate the drive unit 2 to drive the shaving unit 3 to remove hair from the skin.

[0024] See Figure 2 The shaving unit 3 includes a mounting bracket 31 on which two parallel razors 32 are mounted. The two razors 32 have identical structures and are mounted on the mounting bracket 31 in the same manner. This embodiment describes one of the razors 32 as an example. See [link to documentation]. Figure 4 and Figure 5The mounting bracket 31 includes two interconnected front and rear frames 311 and 312. The razor 32 includes a blade holder 33, which is positioned between the front frame 311 and the rear frame 312. A mounting post 313 extends forward from the rear frame 312. The blade holder 33 has a mounting hole 331, into which the mounting post 313 is inserted, thus mounting the blade holder 33 onto the rear frame 312. A first spring 314 is fitted onto the mounting post 313. The first spring 314 pushes the blade holder 33 forward, and the front part 3110 of the front frame 311 blocks the front side of the edge 330 of the blade holder 33, limiting the movement of the blade holder 33. The tool holder 33 has a left-right oriented blade mesh 34 on its front side. A fastening block 332 protrudes from the tool holder 33, and a fastening hole 342 is formed on the blade mesh 34. The fastening block 332 fastens into the fastening hole 342, thus securing the blade mesh 34 to the tool holder 33. The tool holder 33 and the blade mesh 34 together form a left-right oriented guide cage 35. A left-right oriented blade head 36 is installed within the guide cage 35, located behind the blade mesh 34. A first protrusion 363 protrudes rearward from the blade head 36, and a second protrusion 333 protrudes forward from the tool holder 33. The second protrusion 333 aligns with the first protrusion 363. A second spring 334 is installed between the first and second protrusions 363 and 333. The rear end of the second spring 334 is fitted onto the second protrusion 333, and the front end is fitted onto the first protrusion 363, pushing the blade head 36 forward to press it tightly against the blade mesh 34. With the left-right direction as the lateral direction, there is no lateral guide rod inside the guide cage 35. The guide cage 35 surrounds the razor head 36 and provides lateral guidance for the razor head 36. The rear end of the razor head 36 extends rearward to the rear of the razor holder 33 and has a drive hole 365. Since the two razors 32 have the same structure, the other razor 32 will not be described in detail in this embodiment.

[0025] See drive unit 2 Figure 6 The drive unit 2 includes a drive motor 22 and a battery 23 that powers the drive motor 22. A control switch 21 controls the connection of the battery 23. The drive unit 2 also includes two parallel eccentric shafts 24 and a gear pair 25. The drive motor 22 drives the two eccentric shafts 24 through the gear pair 25. The two eccentric shafts 24 extend forward and are respectively inserted into the drive holes 365 of the blades 36 of the two razors 32. The drive motor 22 drives the blades 36 of the two razors 32 to move left and right for shaving via the two eccentric shafts 24. The following example uses one of the eccentric shafts 24 and the razor 32 driven by that eccentric shaft 24:

[0026] When using, see Figure 5 and Figure 6The razor 32 of the shaving module 3 has its foil 34 attached to the skin. Beard hairs on the skin pass through the foil 34 and extend to its rear side. The user presses the control switch 21 to power the drive motor 22 via the battery 23. The drive motor 22 drives the eccentric shaft 24 to rotate and reciprocate laterally, pushing against the drive hole 365 of the razor head 36. Driven by this, the razor head 36 reciprocates laterally along the inner wall of the guide cage 35, thus cutting the beard hairs that have extended into the back of the foil 34 together with the razor foil 34. During shaving, the foil 34 moves along the skin. When the foil 34 reaches a protruding part of the skin, it is pushed backward by the protruding part, causing the foil 34 to retract and compress the first spring 314, thus preventing the razor from easily shaving the protruding part of the skin. When the foil 34 reaches a concave part of the skin, the first spring 314 pushes the razor head 33 forward, causing the foil 34 to move forward and closer to the skin to ensure a good shaving effect. After shaving, the user presses the control switch 21 again to stop the battery 23 from supplying power to the drive motor 22.

[0027] See Figure 3 and Figure 4 Since the shaving unit 3 is magnetically mounted on the drive unit 2, when cleaning or replacing the shaving unit 3, the user can directly remove the shaving unit 3 from the drive unit 2. After removal, the drive hole 365 of the shaving head 36 of the shaving unit 3 disengages from the eccentric shaft 24. Because this shaver eliminates the additional side guide rod and instead uses a guide cage 35 composed of a foil 34 and a shaving holder 33 to guide the shaving head 36, when the user removes the shaving head 36 to clean it, they first release the fasteners of the front and rear frames 311 and 312, then remove the foil 34, and then the shaving head 36 can be removed from the shaving holder 33. The operation is simple and convenient.

[0028] See Figure 2 and Figure 3 After cleaning the shaving unit 3, the user reattaches it magnetically to the drive unit 2 and then closes the cover 4. The front wall 41 and side wall 42 of the cover 4 have ventilation holes 40 that connect to the outside. The cover 4 covers the front of the foil 34 of the shaving unit 3. The foil 34 is connected to the outside through the ventilation holes 40, which allows moisture to evaporate quickly and makes it less likely for bacteria to grow.

[0029] See Figure 2 and Figure 7The locking mechanism 5 includes a first latch 53 and a third spring 54 that pushes the first latch 53 to the right. A second latch 43 is located at the right end of the cover 4. During the closing process of the cover 4, the second latch 43 pushes the first latch 53 to the left, causing the first latch 53 to retract to the left and compress the third spring 54. When the cover 4 is closed, the first latch 53, pushed by the third spring 54, returns to its original position to the right and latches the second latch 43. The locking mechanism 5 thus locks the cover 4. A torsion spring (not shown in the figure) is located at the hinge shaft 45 of the cover 4. The torsion spring applies a torque to the cover 4 to rotate and open it. However, because the locking mechanism 5 locks the cover 4, the cover 4 will not automatically open under the torque of the torsion spring. An exposed pressing block 55 is installed at the right end of the first latch 53, which serves as the unlocking part 51 of the locking mechanism 5. When the user presses the pressing block 55 to the left, it causes the first latch 53 to move to the left, compressing the third spring 54 until the first latch 53 is released from its engagement with the second latch 43. In this state, the cover 4 automatically rotates and opens under the torque of the torsion spring.

[0030] See Figure 1 and Figure 8 The shaver body 100 consists of a protective shell 1, a drive unit 2, a shaving unit 3, a cover 4, and a locking mechanism 5. The shaver body 100 is a flat body. Two grips 103 are rotatably mounted on the two vertical wide surfaces 101 and 102 of the shaver body 100. The rotation axes L of the two grips 103 coincide, forming a horizontal axis perpendicular to the vertical wide surfaces 101 and 102. Taking the vertical direction as the longitudinal direction, the vertical wide surfaces 101 and 102 of the shaver body 100 are also longitudinal wide surfaces. This reciprocating shaver is a fidget spinner shaver and can be used as a fidget spinner. The user holds the shaver by pinching the two grips 103 with two fingers, and then uses another finger to spin the shaver body 100, causing it to rotate relative to the grips 103 around the rotation axis L, providing a certain entertainment effect. Because the razor body 100 is flat and the two grips 103 are mounted on the two vertical wide surfaces 101 and 102 of the flat body, the user only needs to slightly spread two fingers to hold the razor, which is consistent with the usage habits of a fidget spinner. See Figure 1 and Figure 6 The protective casing 1 has an exposed running light 15, which is powered by the battery 23. When the user presses the control switch 21 to power the drive motor 22 with the battery 23, the battery 23 will simultaneously power the running light 15, causing the running light 15 to light up. When the shaver body 100 rotates relative to the grip 103 around the rotation axis L, the running light 15 can produce a dazzling light and shadow effect.

[0031] The above description is merely an embodiment of the present invention and does not limit the scope of patent protection. Any non-substantial changes or substitutions made by those skilled in the art based on the present invention will still fall within the scope of patent protection.

Claims

1. A reciprocating shaver with a detachable head, comprising a shaver holder, a foil for the beard to pass through, a shaver head located behind the foil, a drive motor located behind the shaver holder, the drive motor driving an eccentric shaft, the shaver head having a drive hole, the eccentric shaft extending forward into the drive hole, the drive motor driving the eccentric shaft to rotate and laterally reciprocate against the wall of the drive hole, the shaver head being driven to perform lateral reciprocating motion thereby cutting the beard hairs that have extended into the back of the foil together with the foil, characterized in that: The cutter head and the cutter holder form a guide cage. There are no lateral guide rods inside the guide cage. The guide cage surrounds the cutter head and provides lateral guidance to the cutter head. The eccentric shaft drives the cutter head to make lateral reciprocating motion along the inner wall of the guide cage.

2. The reciprocating razor according to claim 1, characterized in that: A cover is placed in front of the blade mesh, and the cover has a ventilation opening that connects to the outside.

3. The reciprocating razor according to claim 2, characterized in that: The ventilation openings are specifically located on the front and / or side walls of the cover.

4. The reciprocating razor according to claim 1, characterized in that: This is a fidget spinner shaver. The shaver body consists of a shaver holder, a shaver foil, a shaver head, an eccentric shaft, and a drive motor. A grip is rotatably mounted on the shaver body for the user to hold the shaver, and the shaver body can rotate relative to the grip.

5. The reciprocating razor according to claim 4, characterized in that: The razor body is flat, and the grip is specifically mounted on the longitudinal wide surface of the flat body, with its rotation axis being the transverse axis.

6. The reciprocating razor according to claim 1, characterized in that: A spring is provided to push the cutter head forward, causing it to press against the cutter mesh.

7. The reciprocating razor according to claim 1, characterized in that: The shaving unit consists of a foil, a shaving head, and a shaving holder. The drive unit consists of a drive motor and an eccentric shaft. The shaving unit is mounted on the drive unit and can be removed from the drive unit. After removal, the drive hole wall of the shaving unit's shaving head disengages from the eccentric shaft.

8. The reciprocating razor according to claim 7, characterized in that: The shaving unit is specifically detachably mounted on the drive unit in the form of a magnetic drive unit.

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