Face trimming knife with blade convenient to replace

Abstract

The utility model relates to the technical field of face trimming knives, in particular to a face trimming knife convenient for replacing a blade, which comprises a storage rack, a rotating knife rest, a knife cover, a blade, a rotating shaft mechanism and the like, the storage rack is rotationally connected with a rotating knife rest; the rotating knife rest is rotationally connected with the knife cover through a rotating shaft mechanism; the rotating knife rest is provided with a blade, and the knife cover is buckled with the rotating knife rest to clamp and fix the blade. According to the device, through the arrangement of the groove, the blade can be rapidly taken down, and the problem that in the prior art, the hand of a user is prone to being scratched when the blade is taken down is solved; through the arrangement of a torsional spring shaft, the cutter cover can be automatically and rotationally opened, so that the cutter cover can be quickly opened, and a user can conveniently replace a blade of the device; and due to the arrangement of the torsion spring shaft, the knife cover cannot collide with the rotating knife rest, so that the device is more attractive in daily use, and the brand image of a manufacturer is indirectly improved.

Description

Technical Field

[0001] This utility model relates to the field of shaving blade technology, and in particular to a shaving blade that is easy to replace. Background Technology

[0002] A shaving razor is a tool used to trim facial hair. It comes in various types and sizes to suit different shaving needs.

[0003] Existing razors are mainly divided into manual razors and electric razors. Compared to electric razors, manual razors have a relatively smaller contact area with the skin, and the blades cut more gently, better protecting the skin and avoiding discomfort such as scratches, irritation, and redness during shaving.

[0004] Furthermore, manual shaving razors allow for a cleaner shave by shaving against the direction of hair growth, typically requiring only once a day. They are also less likely to cause skin allergies or infections.

[0005] Manual razors require frequent blade replacements to maintain their sharpness. However, current technology requires users to manipulate the blade's edge to quickly remove it, and this edge is extremely sharp, posing a significant risk of hand injury.

[0006] This seriously affects the user's actual shaving experience, and if the shaving razor is used in public places such as barbershops, the risk of wound infection after the user is cut is extremely high. Utility Model Content

[0007] In order to overcome the drawback of existing technology that makes it very easy to cut hands when changing shaving blades, this utility model provides a shaving razor that is easy to replace blades.

[0008] Technical solution: A shaving blade that is easy to replace, comprising a storage frame, a rotating blade holder, a blade cover, a blade, and a rotating shaft mechanism; the storage frame is rotatably connected to the rotating blade holder; the rotating blade holder is rotatably connected to the blade cover via the rotating shaft mechanism; the rotating blade holder is provided with a blade, and the blade cover is engaged with the rotating blade holder to clamp and fix the blade; it also includes a groove; the rotating blade holder is provided with a groove; the rotating shaft mechanism is a torsion spring shaft, and the torsion spring shaft has elastic torque.

[0009] To further explain, the rotating tool holder includes a mounting part and a connecting part; the connecting part is rotatably connected to the storage rack; and the mounting part is fixedly connected to one end of the connecting part.

[0010] To further explain, the storage rack is equipped with locking posts.

[0011] To further explain, it also includes a curved section; the other end of the connecting part is provided with a curved section.

[0012] Further explanation: It also includes limit blocks, limit strips, and mounting slots; the mounting section has a mounting slot; the mounting slot is fixedly connected to the limit strip; the mounting slot is fixedly connected to at least two limit blocks arranged on the left and right, the limit blocks are used to assist the blade installation and positioning in the mounting slot, and all limit blocks are located on the same side of the limit strip.

[0013] To further explain, it also includes a magnetic component; a magnetic component is provided at the bottom of the mounting slot.

[0014] Further explanation: It also includes a snap-fit ​​block, a setting groove, an elastic snap-fit ​​block, and a pushing protrusion; the blade cover is provided with a snap-fit ​​block; the connecting part has a setting groove, and the setting groove extends through the connecting part; the setting groove is connected to an elastic snap-fit ​​block by an elastic element, and the elastic snap-fit ​​block is provided with a pushing protrusion.

[0015] To further explain, the connecting part is provided with a toothed part.

[0016] The beneficial effects of this utility model are as follows: the device, through the setting of the groove, allows the blade to be removed quickly, thus avoiding the problem of users' hands being easily cut when removing the blade in the prior art;

[0017] The torsion spring shaft allows the blade cover to rotate and open automatically, enabling quick opening of the blade cover and making it easier for users to replace the blades.

[0018] Furthermore, the torsion spring shaft design prevents the cutter cover from colliding with the rotating cutter holder, making the device more aesthetically pleasing during daily use and indirectly enhancing the manufacturer's brand image.

[0019] The magnetic component ensures that the blade fits snugly against the mounting slot, preventing it from easily detaching under external force. This also avoids the problem of bacteria growing over time when hair gets stuck in a narrow gap. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the shaving knife of this utility model that facilitates blade replacement;

[0021] Figure 2 This is a folded view of the shaving knife of this utility model that facilitates blade replacement;

[0022] Figure 3 This is a partial structural diagram of the first disclosed embodiment of the shaving knife with easy blade replacement according to this utility model.

[0023] Figure 4 This is a partial exploded view of the shaving blade of the present invention, which facilitates blade replacement.

[0024] Figure 5This is a partial structural diagram of the shaving knife of the present invention, which facilitates blade replacement.

[0025] Figure 6 This is a partial structural diagram of the second disclosed embodiment of the shaving knife with easily replaceable blades.

[0026] Figure 7 This is a schematic diagram of the third partial structure of the shaving knife of this utility model that facilitates blade replacement.

[0027] Figure 8 This is a partial structural cross-sectional view of the shaving knife of this utility model, which facilitates blade replacement.

[0028] In the attached diagram: 1-Storage rack, 2-Rotating blade holder, 3-Blade cover, 4-Blade, 5-Torsion spring shaft, 11-Clamping post, 21-Mounting part, 22-Connecting part, 23-Bent arc part, 211-Limiting block, 212-Groove, 213-Limiting strip, 214-Magnetic part, 215-Mounting groove, 221-Geared part, 222-Setting groove, 223-Elastic locking block, 2231-Pushing protrusion, 31-Clamping block. Detailed Implementation

[0029] The present invention will now be described more fully below with reference to the accompanying drawings, in which presently preferred embodiments of the invention are shown. However, the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness and to fully convey the scope of the invention to those skilled in the art.

[0030] Example

[0031] A shaving knife with easily replaceable blade 4, such as Figure 1-8 As shown, it includes a storage rack 1, a rotating blade holder 2, a blade cover 3, a blade 4, and a rotating shaft mechanism; the storage rack 1 is rotatably connected to the rotating blade holder 2; the rotating blade holder 2 is rotatably connected to the blade cover 3 through the rotating shaft mechanism; the rotating blade holder 2 is provided with a blade 4, and the blade cover 3 is fastened to the rotating blade holder 2 to clamp and fix the blade 4;

[0032] It also includes a groove 212; the rotating tool holder 2 is provided with a groove 212; the rotating shaft mechanism is a torsion spring shaft 5, and the torsion spring shaft 5 has elastic torque.

[0033] Preferably, the rotating tool holder 2 includes a mounting part 21 and a connecting part 22; the connecting part 22 is rotatably connected to the storage rack 1; and the mounting part 21 is fixedly connected to one end of the connecting part 22.

[0034] Preferably, the storage rack 1 is provided with a locking post 11, which ensures that the rotating knife holder 2 will not come off the storage rack 1 during daily storage.

[0035] Preferably, it also includes a curved portion 23; the other end of the connecting portion 22 is provided with a curved portion 23, and the curved portion 23 makes it easier to open the rotating tool holder 2.

[0036] Preferably, it also includes a limiting block 211, a limiting strip 213, and a mounting groove 215; the mounting part 21 has a mounting groove 215; the mounting groove 215 is fixedly connected to the limiting strip 213; the mounting groove 215 is fixedly connected to at least two limiting blocks 211 arranged on the left and right, the limiting blocks 211 are used to assist the blade 4 in being installed and positioned in the mounting groove 215, and all the limiting blocks 211 are located on the same side of the limiting strip 213.

[0037] Preferably, it also includes a magnetic part 214; the bottom of the mounting groove 215 is provided with a magnetic part 214, so that the blade 4 can be tightly attached to the mounting groove 215.

[0038] Preferably, it further includes a snap-fit ​​block 31, a setting groove 222, an elastic snap-fit ​​block 223, and a pushing protrusion 2231; the blade cover 3 is provided with a snap-fit ​​block 31; the connecting part 22 has a setting groove 222, and the setting groove 222 passes through the connecting part 22; the setting groove 222 is connected to the elastic snap-fit ​​block 223 by an elastic element, and the elastic snap-fit ​​block 223 is provided with a pushing protrusion 2231.

[0039] Preferably, the connecting part 22 is provided with a toothed part 221, which increases the friction between the rotating tool holder 2 and the user's hand.

[0040] Because current technology requires users to manipulate the blades of the shaving blade to quickly remove them, and these blades are very sharp, users are very likely to cut their hands upon contact. This seriously affects the user's actual shaving experience. Furthermore, if the razor is used in public places such as barbershops, the risk of infection from cuts is extremely high.

[0041] Therefore, this device is equipped with a groove 212. When the user needs to remove the blade 4 for replacement, the user pulls on the blade cover 3, causing the blade cover 3 to rotate around the rotating shaft mechanism and open, as shown in the image. Figure 3 In this state, the user then places their finger into the groove 212 and applies force to pry the blade 4, so that the blade 4 can be quickly removed. This avoids the problem of users' hands being easily cut when removing the blade 4 in the existing technology.

[0042] Furthermore, the knife cover 3 is not opened and is in the position of... Figure 2 In its normal state, it is fixed by the engagement of the snap-fit ​​block 31 and the elastic snap-fit ​​block 223. When the user needs to open the knife cover 3, such as Figure 8As shown, press and hold the push protrusion 2231 with your finger, then apply force to the right on the push protrusion 2231. The push protrusion 2231 causes the elastic locking block 223 to move to the right, and the elastic element connected to the elastic locking block 223 generates a restoring force. At this time, the elastic locking block 223 releases its engagement with the locking block 31, and the knife cover 3 is thus disengaged from the locking and fixed position.

[0043] Furthermore, the rotating shaft mechanism is set as a torsion spring shaft 5. When the blade cover 3 is disengaged from the locking block 31, the torsion spring shaft 5 releases elastic torque, causing the blade cover 3 to rotate and open automatically. This achieves quick opening of the blade cover 3, making it more convenient for users to replace the blade 4.

[0044] And the user pulls the knife cover 3 to open it, such as Figure 5 As shown, when the blade cover 3 rotates around the torsion spring shaft 5, the rotation of the blade cover 3 is restricted by the torsion spring shaft 5 because of the torsion spring installed in the torsion spring shaft 5. The blade cover 3 can only rotate to a certain limit. Figure 5 In this state, the blade cover 3 will not collide with the rotating blade holder 2, causing the rotating blade holder 2 to be scratched, making the device more aesthetically pleasing during daily use, thereby indirectly enhancing the manufacturer's brand image.

[0045] Furthermore, this device, during routine storage, presents... Figure 2 The folded state shown is designed to allow the rotating tool holder 2 to be opened more easily. Figure 1 In the unfolded state shown, the rotating tool holder 2 is provided with a curved part 23. When the device needs to be used, the user can push the curved part 23, thereby driving the entire rotating tool holder 2 and its connected parts to rotate and open, which facilitates the actual use of the device. Furthermore, the user's little finger rests on the curved part 23, which makes the user's fingers more balanced during actual use, further facilitating the daily use of the device.

[0046] Furthermore, in actual work, users hold the connecting part 22 of the rotating blade holder 2 with their hands to operate the device for shaving. In order to ensure that the device can be better held by the user, the connecting part 22 is provided with a toothed part 221. The toothed part 221 makes the friction between the rotating blade holder 2 and the user's hand greater, and plays an anti-slip role in daily use.

[0047] Furthermore, since blade 4 is actually a very thin and lightweight blade, and in actual use of the shaving razor, the cover 3 is often opened to rinse blade 4 with water to clean the hair off it. However, after the cover 3 is opened, blade 4 is simply inserted into the limiting strip 213.

[0048] When rinsing the blade 4 with water, if the user uses too much hot water, the water flow will impact the side of the blade 4, creating a gap between the blade 4 and the mounting groove 215. Hair washed down by the water will then flow into this narrow gap, becoming stuck. Since the hair contains sebum secreted by the body, over time, a large number of bacteria will grow in this narrow gap, significantly reducing the hygiene and safety of the device.

[0049] Furthermore, when the water flow is too strong, the blade 4 may be dislodged from the mounting slot 215 and fall into the sink. The user then needs to retrieve the blade 4 by hand, which greatly increases the risk of hand injuries.

[0050] Furthermore, when replacing blade 4, because blade 4 is thin and lightweight, if the user applies too much force while turning it, blade 4 may also fly off.

[0051] Therefore, this device is equipped with a magnetic part 214. When the blade 4 is installed in the mounting slot 215, the blade 4 will come into contact with the magnetic part 214. Under the magnetic attraction of the magnetic part 214, the blade 4 can be tightly attached to the mounting slot 215. In this way, the blade 4 will not easily detach from the mounting slot 215 under the action of external force, and it also avoids the problem that when hair gets stuck in a narrow gap, a large number of bacteria will grow over time.

[0052] The above embodiments are provided for those skilled in the art to implement or use the present invention. Those skilled in the art can make various modifications or changes to the above embodiments without departing from the inventive concept of the present invention. Therefore, the protection scope of the present invention is not limited to the above embodiments, but should be the maximum scope that conforms to the innovative features mentioned in the claims.

Claims

1. A shaving razor with easy-to-change blades, comprising a storage rack (1), a rotating blade holder (2), a blade cover (3), a blade (4), and a rotating shaft mechanism; the storage rack (1) is rotatably connected to the rotating blade holder (2); the rotating blade holder (2) is rotatably connected to the blade cover (3) via the rotating shaft mechanism; the rotating blade holder (2) is provided with a blade (4), and the blade cover (3) is fastened to the rotating blade holder (2) to clamp and fix the blade (4); characterized in that: It also includes a groove (212); the rotating tool holder (2) is provided with a groove (212); the rotating shaft mechanism is a torsion spring shaft (5), and the torsion spring shaft (5) has elastic torque.

2. A shaving blade that is easy to replace according to claim 1, characterized in that: The rotating tool holder (2) includes a mounting part (21) and a connecting part (22); the connecting part is rotatably connected to the storage rack (1); the mounting part (21) is fixedly connected to one end of the connecting part.

3. A shaving blade that is easy to replace according to claim 1, characterized in that: The storage rack (1) is equipped with a locking post (11).

4. A shaving blade that is easy to replace according to claim 2, characterized in that: It also includes a curved part (23); the other end of the connecting part (22) is provided with a curved part (23).

5. A shaving blade that is easy to replace according to claim 2, characterized in that: It also includes a limiting block (211), a limiting strip (213), and a mounting groove (215); the mounting part (21) has a mounting groove (215); the mounting groove (215) is fixedly connected to the limiting strip (213); the mounting groove (215) is fixedly connected to at least two limiting blocks (211) arranged on the left and right, the limiting blocks (211) are used to assist the blade (4) in being installed and positioned in the mounting groove (215), and all the limiting blocks (211) are located on the same side of the limiting strip (213).

6. A shaving blade that is easy to replace according to claim 5, characterized in that: It also includes a magnetic part (214); the bottom of the mounting groove (215) is provided with a magnetic part (214).

7. A shaving blade that is easy to replace according to claim 6, characterized in that: It also includes a snap-fit ​​block (31), a setting groove (222), an elastic snap-fit ​​block (223), and a pusher protrusion (2231); the blade cover (3) is provided with a snap-fit ​​block (31); the connecting part (22) has a setting groove (222), and the setting groove (222) passes through the connecting part (22); the setting groove (222) is connected to the elastic snap-fit ​​block (223) by an elastic element, and the elastic snap-fit ​​block (223) is provided with a pusher protrusion (2231).

8. A shaving blade that is easy to replace according to claim 7, characterized in that: The connecting part (22) is provided with a toothed part (221).

Images