A manual razor with a double-edged blade head structure

Abstract

This invention belongs to the field of manual razor technology, and specifically relates to a double-blade head structure for manual razors. It aims to solve the problems of existing manual razors requiring the use of separate lubricating materials applied by hand, which is unhygienic and prone to causing finger cuts, and the easily lost separate blade protector. This invention includes a main frame, blades, and a handle. Two collapsible clamps are located in the middle of the main frame. The handle contains a cavity and a piston head. The forward push of the pressure block synchronously drives the piston head to extrude shaving gel and the linkage mechanism to move upwards, opening the cover. The backward pull, via the linkage mechanism, trigger rod, connecting rod, and connecting frame, synchronously drives the clamps to close, smoothing the gel and resetting the piston head. A one-way valve prevents the extruded gel from flowing back. This invention integrates the functions of extrusion lubrication, clamp smoothing, and cover opening / closing into a single operating stroke within a single push-pull cycle, eliminating the need for finger contact with lubricating materials, making it convenient and safe to use.

Description

Technical Field

[0001] This invention relates to the field of manual razor technology, specifically to a double-edged head structure for a manual razor. Background Technology

[0002] As a personal care tool, a manual razor typically consists of a razor head and a handle. The razor head holds one or more double-edged blades, and the handle is for the user to hold and operate. When shaving manually, the user usually squeezes shaving foam or gel from a separate container or tube and applies it to the facial beard area with their fingers. This softens the beard and reduces friction between the blades and skin. The user then holds the razor and shaves along the contours of the face, using the blades to cut the beard. After use, some razors come with a separate plastic snap-on protective cover that must be manually fastened over the razor head to cover the exposed blades and prevent them from getting damp, dusty, or accidentally cutting the user during storage.

[0003] Existing technologies have the following shortcomings: First, before shaving, it is necessary to carry and handle a separate package of lubricating material, and after squeezing it out, one must use their fingers to spread it evenly on the face, making the process cumbersome and unhygienic. Second, the shaving head cover is usually a separate component, which is easily lost due to frequent use. If it is lost and the blade is left exposed for a long time, it will affect the lifespan of the blade and increase the safety hazards when taking it out. Users lack an integrated solution that can simultaneously supply and apply lubricating material in a single operation and conveniently protect the blade after use. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a double-blade head structure for manual razors, solving the problems of current manual razors requiring users to apply lubricant to their face with their fingers, which is unhygienic, and the head protector being a separate component that is easily lost, resulting in a lack of reliable protection for the blades during storage.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a manual razor double-edged head structure, comprising a main frame and a blade installed in the main frame, as well as a handle for easy gripping;

[0006] Two clamping plates are provided in the middle of the main frame. The two clamping plates are located on both sides above the middle of the blade. Each clamping plate is rotatably connected to a connecting frame at its bottom. The connecting frame is connected to a connecting rod. When the connecting rod is pulled down by force, it drives the two clamping plates to sink and close in the middle through the connecting frame, thereby realizing the clamping action.

[0007] It also includes a trigger rod, the upper end of which is connected to a connecting rod, and the lower end of which is connected to a linkage frame. The linkage frame is slidably inserted into the handle, and a pressure block is fixedly connected to the end of the linkage frame.

[0008] The forward stroke of the pressure block simultaneously drives the shaving gel to be extruded and the cover plate to open. The backward stroke of the pressure block simultaneously drives the clamp plate to close, smoothing the gel and resetting the piston head. During the backward stroke, a one-way valve prevents the extruded gel from flowing back.

[0009] In some embodiments, the inner side of the main frame is provided with a cover plate for shielding the blade, and the outer edge of the main frame is provided with a hinge for flipping the cover plate; adsorption plates are provided on both sides of the main frame, and magnetic heads are provided on the inner side of the cover plate, so that the cover plate is adsorbed and fixed to the adsorption plates by the magnetic heads when closed.

[0010] In some embodiments, a lifting bar is interspersed inside the main frame. The lifting bar is used to lift the adsorption plate so that it is detached from the adsorption state of the cover plate. A support plate is connected to the side end of the lifting bar. The support plate is distributed laterally above the linkage frame. When the pressure block is pushed forward, the linkage frame moves upward. The support plate drives the lifting bar to lift the adsorption plate, so that the cover plate is opened synchronously during the forward push.

[0011] In some embodiments, a magnetic ring is provided between the grip and the main frame, and the cover plate is adsorbed onto the magnetic ring after being flipped outward around the hinge.

[0012] In some embodiments, the handle has an internal cavity for storing shaving gel, a piston head is disposed within the cavity, a rod is connected to the side of the piston head, and the end of the rod is connected to the pressure block; a guide tube is disposed between the internal cavity of the handle and the main frame, and the outlet of the guide tube is located between the two clamping plates; when the pressure block is pushed forward, the piston head is driven by the rod to squeeze the shaving gel in the cavity and squeeze it out through the guide tube to the space between the clamping plates, thus achieving synchronous extrusion of gel during the forward stroke.

[0013] In some embodiments, a one-way valve is provided in the internal cavity of the grip, and the one-way valve is located at the inlet end of the guide tube; when the pressure block is pulled back, the piston head resets, and the one-way valve prevents the extruded gel from flowing back, so as to realize synchronous reset of the pull-back stroke and not recycle the gel.

[0014] In some embodiments, the bottom of the clamp is provided with a magnetic head, and a metal panel is correspondingly provided on the main frame. When not in use, the clamp is attached to the metal panel by the magnetic head to maintain stability.

[0015] In some embodiments, the trigger lever is irregularly shaped and extends to both sides to fit the internal space of the grip and simultaneously drive the connecting rods on both sides.

[0016] In some embodiments, the grip sidewall is provided with a sealing plug for sealing the pores of replenishing shaving gel; and the bottom of the grip is provided with a cover for shielding the pressure block.

[0017] Compared with the prior art, the present invention provides a double-blade head structure for a manual razor, which has the following beneficial effects:

[0018] 1. By pushing and pulling the pressure block forward and backward in a single cycle, the three functions of extrusion lubrication, clamping plate smoothing, and cover opening and closing are integrated into the same operating stroke: During the forward stroke, the pressure block drives the piston head forward through the insertion rod, extruding the shaving gel in the handle cavity through the one-way valve and the guide tube between the two clamping plates. On the other hand, the linkage frame fixed to the pressure block moves upward, driving the support plate and the lifting bar to push the adsorption plate away from the cover plate, thus achieving the dual effect of gel extrusion and cover opening simultaneously during the forward stroke.

[0019] During the pull-back stroke, the linkage frame moves downward with the pressure block, sequentially pulling the trigger rod, connecting rod, and connecting frame. This drives the two clamping plates to sink and close towards the center, squeezing the gel accumulated in the center evenly and spreading it onto the surface of the clamping plates. Simultaneously, the piston head returns to its original position with the pressure block, and the one-way valve prevents the extruded gel from flowing back. This achieves the dual effect of smoothing the clamping plates and preventing backflow during the pull-back stroke. In this structure, both the extrusion and smoothing actions are driven by a unified transmission chain composed of the pressure block's push-pull stroke, the linkage frame, the trigger rod, the connecting rod, and the connecting frame. Users can complete the entire process from dispensing gel to spreading it evenly without touching the lubricating material with their fingers. This avoids the unhygienic problem of fingers getting gel on them and eliminates the risk of cuts when fingers are close to the blade.

[0020] 2. By integrating a flip-up cover plate into the main frame, the lifting mechanism moves upward during the forward stroke, automatically opening the cover plate. After use, simply invert the blade head and push it; the cover plate will flip back under gravity and re-adhere to the suction plate, reliably protecting the blade. The opening and closing of the cover plate is also integrated into the forward stroke of the pressure block, eliminating the need for manual fastening and separate storage of independent protective covers. This avoids the drawback of traditional independent protective covers being easily lost, ensuring that the blade is always effectively protected when not in use, extending blade life and preventing accidental cuts. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the connection structure of the cover and handle after disassembly according to the present invention;

[0023] Figure 3 This is a schematic diagram of the cross-section of the grip portion and the internal piston head structure of the present invention;

[0024] Figure 4 This is a schematic diagram showing the installation position of the support plate of the present invention;

[0025] Figure 5 This is a schematic diagram of the cross-sectional structure of the main frame and bushing of the present invention, as well as the blade mounting position.

[0026] Figure 6 This is a schematic diagram showing the positional relationship between the cover plate and the blade after the present invention is applied.

[0027] Figure 7 This is a schematic diagram of the connection structure of the clamping plate, bottom connecting rod, and connecting frame of the present invention;

[0028] Figure 8 This is a schematic diagram of the overall structure of the main frame of the cover plate of the present invention in its unfolded state.

[0029] In the diagram: 1. Main frame; 2. Blade; 3. Bushing; 4. Handle; 5. Insert rod; 6. Piston head; 7. Pressure block; 8. Guide tube; 9. Linkage frame; 10. Cover; 11. Sealing plug; 12. Clamping plate; 13. Connecting frame; 14. Connecting rod; 15. Magnetic head; 16. Trigger rod; 17. Support plate; 18. Lifting bar; 19. Cover plate; 20. Hinge; 21. One-way valve; 22. Adsorption plate; 23. Magnetic ring. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] Please see Figure 1-8 In this embodiment: a manual razor double-blade head structure includes a main frame 1, a blade 2, a bushing 3 for fixing the position of the blade 2, and a grip 4 for easy holding. A cavity for storing shaving gel is formed inside the grip 4, and a piston head 6 for pushing the shaving gel is provided inside the cavity. A rod 5 is provided on the side end of the piston head 6 to control the movement of the piston head 6, and a pressure block 7 is provided at the end of the rod 5 to increase the pressing area and achieve a labor-saving effect. A guide tube 8 (e.g., ...) is provided between the cavity inside the grip 4 and the main frame 1. Figure 3 (As shown in the image), the guide tube 8 is used to deliver shaving gel to the shaving head (above the middle of the blade 2). Two clamping plates 12 are set in the middle of the main frame 1, and the clamping plates 12 are located on both sides of the end of the guide tube 8 (as shown in the image). Figure 8 As shown), and a connecting frame 13 and a connecting rod 14 for transmission are rotatably arranged on one side of the bottom of the clamping plate 12. Figure 7 As shown), when the connecting rod 14 is pulled from below, the two clamps 12 will sink and close towards the center (similar to the action of a book closing). At this time, the clamps 12 can spread the shaving gel squeezed out from the center evenly to the surface of the clamps 12 by clamping the two sides, so that the user can quickly apply it to the beard.

[0034] To ensure that the connecting rod 14 and the connecting frame 13 can stably control the settlement clamping stroke of the clamping plate 12, a trigger rod 16 for transmission is provided at the bottom of the connecting rod 14. The trigger rod 16 has an irregular shape and extends to both sides (e.g., Figure 5 As shown), a linkage frame 9 for directly controlling the trigger rod 16 is provided at the end of the trigger rod 16, and a pressure block 7 is fixedly connected to the end of the linkage frame 9 (as shown). Figure 3 As shown), through the transmission of the linkage frame 9, trigger rod 16, connecting frame 13 and connecting rod 14, the stroke of clamping plate 12 is also controlled by pressure block 7.

[0035] The linkage 9 is inserted into the handle 4 and maintains a sliding connection (such as...). Figure 3 (as shown)

[0036] Based on the above setup, the pushing and pulling of the pressure block 7 respectively control the piston head 6 and the clamping plate 12, and the specific transmission steps are as follows:

[0037] When the pressure block 7 is pushed forward (meaning pushed towards the blade 2), the pressure block 7 pushes the piston head 6 to move in the cavity inside the handle 4 through the insert rod 5, and squeezes the shaving gel in the cavity to the guide tube 8, where it is squeezed out and piled up at the end under the delivery of the guide tube 8.

[0038] When the pressure block 7 is pulled back, the linkage frame 9 is pulled, the linkage frame 9 pulls the trigger rod 16, and the trigger rod 16 pulls the connecting rod 14 and the connecting frame 13. Through the rotation connection of the connecting frame 13, the clamping plate 12 tilts to one side until the clamping is completed. After clamping, the squeezed shaving gel is spread evenly.

[0039] Since the insert rod 5 and piston head 6 are also pulled when the pressure block 7 is pulled back, a one-way valve 21 is installed in the internal cavity of the handle 4 to prevent the shaving gel from being drawn back due to negative pressure in the internal cavity of the handle 4 caused by the pull of the piston head 6. Figure 3 As shown in the figure, the shaving gel that has been squeezed out is not affected when the piston head 6 draws in.

[0040] Since the clamping plate 12 is rotatably connected to the connecting frame 13 on one side, in order to ensure that the clamping plate 12 is in a non-use state (such as... Figure 8 To ensure the stability of the clamping plate 12 (as shown), a magnetic suction head 15 is provided at the bottom of the clamping plate 12 (e.g., ...). Figure 7 (As shown in the figure), the stability of the clamp 12 can be ensured by attaching it to the metal panel connected to the main frame 1 below using the magnetic head 15.

[0041] A cover plate 19 for shielding the blade 2 is provided on the inner side of the main frame 1 (e.g., Figure 1 As shown), a hinge 20 is provided on the outer edge of the main frame 1 for the cover plate 19 to flip. In this way, the cover plate 19 can be flipped freely, thereby controlling whether it covers the blade 2, thus flexibly protecting the blade 2 (preventing wear) and the user (preventing the blade 2 from accidentally contacting the skin when applying shaving gel to the beard).

[0042] Adsorption plates 22 are provided on both sides of the main frame 1. The adsorption plates 22 are used to adsorb the cover plate 19 in the closed state.

[0043] It should be noted that the inner side of the cover plate 19 is also equipped with a magnetic head 15 (such as...). Figure 8 (Unlabeled as shown), and the cover plate 19 is made of a metal material that can be magnetically attracted.

[0044] A magnetic ring 23 is placed between the grip 4 and the main frame 1 (e.g., ...). Figure 4 (as shown in the image) The magnetic ring 23 is used to attract the cover plate 19 after it has been turned outward, preventing the cover plate 19 from shaking randomly when the blade 2 is in use.

[0045] Since the cover plate 19 remains tightly connected after being adsorbed by the adsorption plate 22, a lifting strip 18 is interspersed inside the main frame 1 to lift the adsorption plate 22 and release it from the adsorption state. A support plate 17 is provided on the side of the lifting strip 18 for integration and connection. The support plate 17 is distributed laterally above the linkage frame 9. That is to say, when the linkage frame 9 moves upward, the support plate 17 controls the lifting strip 18 to lift the cover plate 19. The upward movement of the linkage frame 9 is precisely controlled by the pressure block 7. When the pressure block 7 is pushed forward, the shaving gel can be squeezed out, and the cover plate 19 can also be released from adsorption. After the shaving gel is applied, the entire structure can be inverted to flip the cover plate 19.

[0046] A sealing plug 11 is provided on the side wall of the grip 4 to seal the holes for replenishing shaving gel.

[0047] A cover 10 is inserted into the bottom of the handle 4. The cover 10 can be removed at will. The cover 10 is used to cover the pressure block 7 to prevent accidental contact that could cause the shaving gel to be squeezed out.

[0048] In this embodiment, before use, the operator removes the cover 10 at the bottom of the handle 4, pushes the pressure block 7 forward, and the pressure block 7 drives the piston head 6 to move forward in the cavity of the handle 4 through the insertion rod 5, squeezing the shaving gel through the one-way valve 21 and the guide tube 8 between the two clamping plates 12 in the middle of the shaving head; at the same time, the linkage frame 9 fixed to the pressure block 7 moves upward, driving the support plate 17 and the lifting bar 18 to push the adsorption plate 22 away from the cover plate 19. After the cover plate 19 is disengaged, it can be flipped outward around the hinge 20 and adsorbed onto the magnetic ring 23, exposing the blade 2. Then, the pressure block 7 is pulled back, the linkage frame 9 moves down and pulls the trigger rod 16, the connecting rod 14 and the connecting frame 13 in sequence, driving the two clamping plates 12 to sink and close in the middle, squeezing the gel accumulated in the middle and evenly spreading it on the surface of the clamping plates 12, completing the smoothing of the gel. At this point, the operator can choose to apply the gel on the surface of the clamp 12 to the beard area first, and then start shaving, or start shaving directly and apply the gel as needed during the process. After applying or shaving, invert the razor head, manually move the cover 19, and it will flip and fall back under the action of gravity. The magnetic head 15 on its inner side will re-attach and close with the adsorption plate 22, covering and protecting the blade 2. Finally, insert the cover 10 back into the bottom of the handle 4 to complete the storage. If it is necessary to clean the gel residue, it can be rinsed or wiped with a dry cloth. A single push-pull cycle completes the coordinated operation of the three functions of extrusion lubrication, clamp smoothing, and cover protection.

[0049] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A manual razor with a double-edged blade head structure, comprising a main frame (1) and a blade (2) installed within the main frame (1), and a grip (4) for easy handling, characterized in that: The main frame (1) has two clamping plates (12) in the middle. The two clamping plates (12) are located on both sides above the middle of the blade (2). Each clamping plate (12) is rotatably connected to a connecting frame (13) at its bottom. The connecting frame (13) is connected to a connecting rod (14). When the connecting rod (14) is pulled down by force, it drives the two clamping plates (12) to sink and close in the middle through the connecting frame (13), thus realizing the clamping action. It also includes a trigger rod (16), the upper end of which is connected to the connecting rod (14), and the lower end of which is connected to the linkage frame (9). The linkage frame (9) is slidably inserted into the handle (4), and a pressure block (7) is fixedly connected to the end of the linkage frame (9). The forward stroke of the pressure block (7) simultaneously drives the shaving gel to be extruded and the cover plate (19) to open. The backward stroke of the pressure block (7) simultaneously drives the clamp plate (12) to close and smooth the gel and the piston head (6) to reset. During the backward stroke, the one-way valve (21) prevents the extruded gel from flowing back.

2. The manual razor double-blade head structure according to claim 1, characterized in that: The main frame (1) has a cover plate (19) for shielding the blade (2) on the inner side of the frame, and a hinge (20) for flipping the cover plate (19) is provided on the outer edge of the main frame (1); an adsorption plate (22) is provided on both sides of the main frame (1), and a magnetic head (15) is provided on the inner side of the cover plate (19). When the cover plate (19) is closed, it is adsorbed and fixed to the adsorption plate (22) by the magnetic head (15).

3. The manual razor double-blade head structure according to claim 2, characterized in that: A lifting bar (18) is interspersed inside the main frame (1). The lifting bar (18) is used to lift the adsorption plate (22) so that it is detached from the adsorption state of the cover plate (19). A support plate (17) is connected to the side end of the lifting bar (18). The support plate (17) is distributed horizontally above the linkage frame (9). When the pressure block (7) is pushed forward, the linkage frame (9) moves upward. The support plate (17) drives the lifting bar (18) to lift the adsorption plate (22) and realizes the simultaneous opening of the cover plate (19) during the forward push stroke.

4. The double-edged head structure of a manual razor according to claim 2, characterized in that: A magnetic ring (23) is provided between the grip (4) and the main frame (1). The cover plate (19) is flipped outward around the hinge (20) and then adsorbed onto the magnetic ring (23).

5. The manual razor double-blade head structure according to claim 1, characterized in that: The handle (4) has a cavity for storing shaving gel inside. A piston head (6) is provided in the cavity. A rod (5) is connected to the side of the piston head (6). The end of the rod (5) is connected to the pressure block (7). A guide tube (8) is provided between the cavity inside the handle (4) and the main frame (1). The outlet of the guide tube (8) is located between the two clamping plates (12). When the pressure block (7) is pushed forward, the piston head (6) is driven by the rod (5) to squeeze the shaving gel in the cavity and squeeze it out through the guide tube (8) to the clamping plates (12), so as to realize the synchronous extrusion of gel during the forward stroke.

6. The double-edged blade structure of a manual razor according to claim 5, characterized in that: A one-way valve (21) is provided in the internal cavity of the grip (4). The one-way valve (21) is located at the inlet end of the guide tube (8). When the pressure block (7) is pulled back, the piston head (6) is reset, and the one-way valve (21) prevents the extruded gel from flowing back, so as to realize synchronous reset of the pull stroke and not recycle the gel.

7. The manual razor double-blade head structure according to claim 1, characterized in that: The clamp (12) is provided with a magnetic head (15) at the bottom, and a metal panel is provided on the main frame (1). When not in use, the clamp (12) is attached to the metal panel by the magnetic head (15) to maintain stability.

8. The double-edged head structure of a manual razor according to claim 1, characterized in that: The trigger rod (16) has an irregular shape and extends to both sides to fit the internal space of the grip (4) and simultaneously drive the connecting rods (14) on both sides.

9. The double-edged blade head structure of a manual razor according to claim 1, characterized in that: The grip (4) has a sealing plug (11) on its side wall for sealing the holes of the shaving gel; the bottom of the grip (4) has a cover (10) for covering the pressure block (7).

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