A razor with automatic head return
The design of the protective components solves the problem of the shaver being exposed after the cap is lost, thus achieving automatic protection of the shaver head, preventing damage and maintaining cleanliness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU LIYU RAZOR CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-06-05
AI Technical Summary
Existing shavers with automatic retractable heads leave the heads exposed when the cap is lost, which can easily lead to damage or affect cleaning performance.
A protective component is designed, including a groove, a slide, a slider, a slot, a block, a connecting rod, a protective shell, a connecting shaft, a gear, and a bidirectional rack. Through the coordinated movement of these components, the protective shell can be automatically fitted onto the outside of the cutter head to provide protection.
It effectively prevents the blade from being damaged when not in use, maintains cleanliness, and avoids damage and loss of cleanliness due to exposure.
Smart Images

Figure CN224323150U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shaver technology, specifically to a shaver with an automatically retractable blade head. Background Technology
[0002] A razor, also known as a beard razor, is a tool for shaving. It is a self-service tool and is mostly used by adult men. Razors can be classified into three categories according to their structure: safety razors, electric razors, and mechanical razors.
[0003] Because manual razors offer advantages such as a cleaner shave, portability without charging, and less risk of skin damage, many people still choose to use them. Existing razors with automatic retractable heads can automatically retract their heads after rotation, maintaining a suitable angle during the initial shave. However, after use, the head needs to be covered with a cap. Since the cap and the razor body are two separate structures without a connection, if the cap is lost, the head will be exposed, which can easily lead to damage or affect its cleanliness. Utility Model Content
[0004] The purpose of this invention is to provide a shaver with an automatically retractable blade head, in order to solve the problem mentioned in the background art that when the cap of an existing shaver with an automatically retractable blade head is lost, the blade head will be exposed to the outside, which is prone to damage or affects its cleanliness.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a shaver with an automatically retractable blade head, comprising a handle, wherein a retractable blade head is provided on the top of the handle, and a protective component is provided on the outer side of the handle;
[0006] The protective components include grooves, slides, sliders, slots, blocks, connecting rods, protective shells, connecting shafts, gears, and bidirectional racks;
[0007] The groove is formed inside the handle, the slide is formed on the surface of the handle, the slider is slidably connected to the inside of the slide, the slot is formed on the surface of the handle and located on one side of the slide, the locking block is provided on the protrusion of the slider, the connecting shaft is rotatably connected to the inside of the groove, the connecting rod is fixedly connected to the outer wall of the connecting shaft, the protective shell is fixedly connected to the end of the connecting rod, the gear is fixedly assembled to the end of the connecting shaft, and the bidirectional rack is fixedly assembled to the end of the slider.
[0008] Preferably, the slide groove is connected to the groove, and the inner wall of the slide groove matches the outer wall of the slider.
[0009] Preferably, the slot in the aligned state engages with the block, and the engaged state of the slot and the block is used to lock the movement of the slider.
[0010] Preferably, the two gears mesh with the tooth grooves on both sides of the bidirectional rack, and the meshing bidirectional rack and the two gears are used to drive the two connecting shafts to rotate synchronously.
[0011] Preferably, the two connecting shafts in the rotating state are used to drive the two connecting rods to move, and the two connecting rods in the moving state drive the two protective shells to move.
[0012] Preferably, the two protective shells, which are close together and in a mating state, are fitted onto the outside of the spring-loaded cutter head.
[0013] Compared with the prior art, the beneficial effects of this utility model are: the protective component allows two protective shells in a close and mating state to be fitted onto the outside of the resilient cutter head, while the two protective shells in a moving and distancing state release their protection of the resilient cutter head, allowing the resilient cutter head to be used normally. Thus, the above structure enables the two protective shells in a close and mating state to achieve the effect of protecting the resilient cutter head, and avoids the resilient cutter head from being easily damaged or having its cleanliness affected. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the main structure of the present utility model;
[0015] Figure 2 This is a schematic diagram of the protective component structure of this utility model;
[0016] Figure 3 This is a cross-sectional view of the handle of this utility model;
[0017] Figure 4 This utility model Figure 3 A schematic diagram of structure A in the diagram.
[0018] In the diagram: 1. Handle; 2. Rebound cutter head; 3. Protective component; 301. Groove; 302. Slide groove; 303. Slider; 304. Slot; 305. Block; 306. Connecting rod; 307. Protective shell; 308. Connecting shaft; 309. Gear; 3010. Double rack. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Please see Figure 1-4 This utility model provides a shaver with an automatically retractable blade head: a shaver with an automatically retractable blade head includes a handle 1, a retractable blade head 2 is provided on the top of the handle 1, and a protective component 3 is provided on the outside of the handle 1;
[0021] The protective component 3 includes a groove 301, a slide 302, a slider 303, a slot 304, a block 305, a connecting rod 306, a protective shell 307, a connecting shaft 308, a gear 309, and a bidirectional rack 3010;
[0022] A groove 301 is formed inside the handle 1, a slide groove 302 is formed on the surface of the handle 1, a slider 303 is slidably connected to the inside of the slide groove 302, a slot 304 is formed on the surface of the handle 1 and located on one side of the slide groove 302, a locking block 305 is provided on the protrusion of the slider 303, a connecting shaft 308 is rotatably connected to the inside of the groove 301, a connecting rod 306 is fixedly connected to the outer wall of the connecting shaft 308, a protective shell 307 is fixedly connected to the end of the connecting rod 306, a gear 309 is fixedly assembled to the end of the connecting shaft 308, and a bidirectional rack 3010 is fixedly assembled to the end of the slider 303.
[0023] Please refer to this carefully. Figure 2 The slide groove 302 is connected to the groove 301, and the inner wall of the slide groove 302 matches the outer wall of the slider 303.
[0024] In this embodiment: by pressing the protrusion of the slider 303 with a hand, the slider 303 moves downward along the inner wall trajectory of the groove 302, driving the bidirectional rack 3010 to move downward.
[0025] Please refer to this carefully. Figure 2 The slot 304 and the block 305 are engaged in the aligned state, and the engaged state of the slot 304 and the block 305 is used to lock the movement of the slider 303.
[0026] In this embodiment: the card block 305 is inserted into a card slot 304, so that the card slot 304 and the card block 305 in the engaged state lock the movement of the slider 303, thereby locking and limiting the position of the two protective shells 307.
[0027] Please refer to this carefully. Figure 4The two gears 309 mesh with the tooth grooves on both sides of the double-sided rack 3010, and the double-sided rack 3010 and the two gears 309 in the meshing state are used to drive the two connecting shafts 308 to rotate synchronously.
[0028] In this embodiment: Since the two gears 309 mesh with the tooth grooves on both sides of the double-sided rack 3010 respectively, the two double-sided racks 3010 in the descending state drive the two gears 309 to rotate synchronously. The two gears 309 in the rotating state drive the two connecting shafts 308 to rotate synchronously. The two connecting shafts 308 in the rotating state drive the two connecting rods 306 to move synchronously.
[0029] Please refer to this carefully. Figure 3 The two connecting shafts 308 in the rotating state are used to drive the two connecting rods 306 to move, and the two connecting rods 306 in the moving state drive the two protective shells 307 to move.
[0030] In this embodiment: the two connecting shafts 308 in the rotating state drive the two connecting rods 306 to move synchronously, and the two connecting rods 306 in the synchronous movement state drive the two protective shells 307 to move closer to each other, and then the two protective shells 307 in the close and docking state are sleeved on the outside of the spring-loaded cutter head 2.
[0031] Please refer to this carefully. Figure 3 Two protective shells 307, which are close together and in a docking state, are fitted onto the outside of the spring-loaded cutter head 2.
[0032] In this embodiment: two protective shells 307 that are close together and in a docking state are sleeved on the outside of the spring-loaded cutter head 2. When the two connecting rods 306 in a synchronous motion state drive the two protective shells 307 to move away from each other, the two protective shells 307 in the moving away state release the protection of the spring-loaded cutter head 2.
[0033] Working principle: When the resilient cutter head 2 is not in use, the protrusion of the slider 303 is pressed by hand, and the slider 303 moves along the inner wall of the groove 302, causing the bidirectional rack 3010 to descend. Since the two gears 309 mesh with the tooth grooves on both sides of the bidirectional rack 3010, the two bidirectional racks 3010 in the descending state drive the two gears 309 to rotate synchronously (it should be noted that both gears 309 and the bidirectional rack 3010 are made of plastic, which saves costs). The two gears 309 in the rotating state drive the two connecting shafts 308 to rotate synchronously. The two connecting shafts 308 in the rotating state drive the two connecting rods 306 to move synchronously. Then, the two connecting rods 306 in the synchronous movement state drive the two protective shells 307. Two protective shells 307, which move closer together and are then aligned, are fitted onto the outside of the resilient cutter head 2. As described above, when the two connecting rods 306, which move synchronously, drive the two protective shells 307 to move further apart, the protective shells 307 in the further apart state release their protection of the resilient cutter head 2, allowing the resilient cutter head 2 to be used normally. Finally, the locking block 305 is inserted into a slot 304, so that the slot 304 and the locking block 305 lock the movement of the slider 303, thus locking and limiting the position of the two protective shells 307. In this way, the two protective shells 307 in the closer together and aligned state achieve the effect of protecting the resilient cutter head 2, and prevent the resilient cutter head 2 from being easily damaged or having its cleanliness affected.
[0034] 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 to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A shaver with an automatically retractable shaving head, comprising a handle (1), wherein a retractable shaving head (2) is provided on the top of the handle (1), characterized in that: The handle (1) is provided with a protective component (3) on its outer side; The protective component (3) includes a groove (301), a slide (302), a slider (303), a slot (304), a block (305), a connecting rod (306), a protective shell (307), a connecting shaft (308), a gear (309), and a bidirectional rack (3010); The groove (301) is formed inside the handle (1), the slide groove (302) is formed on the surface of the handle (1), the slider (303) is slidably connected to the inside of the slide groove (302), the slot (304) is formed on the surface of the handle (1) and located on one side of the slide groove (302), the block (305) is provided on the protrusion of the slider (303), the connecting shaft (308) is rotatably connected to the inside of the groove (301), the connecting rod (306) is fixedly connected to the outer wall of the connecting shaft (308), the protective shell (307) is fixedly connected to the end of the connecting rod (306), the gear (309) is fixedly assembled to the end of the connecting shaft (308), and the bidirectional rack (3010) is fixedly assembled to the end of the slider (303).
2. The razor with automatic blade retraction according to claim 1, characterized in that: The groove (302) is connected to the groove (301), and the inner wall of the groove (302) matches the outer wall of the slider (303).
3. A razor with an automatically retractable blade head according to claim 1, characterized in that: The slot (304) in the aligned state engages with the block (305), and the slot (304) and the block (305) in the engaged state are used to lock the movement of the slider (303).
4. A razor with an automatically retractable blade head according to claim 1, characterized in that: The two gears (309) mesh with the tooth grooves on both sides of the bidirectional rack (3010), and the bidirectional rack (3010) and the two gears (309) in the meshing state are used to drive the two connecting shafts (308) to rotate synchronously.
5. A razor with an automatically retractable blade head according to claim 1, characterized in that: The two connecting shafts (308) in the rotating state are used to drive the two connecting rods (306) to move, and the two connecting rods (306) in the moving state drive the two protective shells (307) to move.
6. A razor with an automatically retractable blade head according to claim 1, characterized in that: The two protective shells (307) that are close to each other and in a docking state are fitted onto the outside of the spring-loaded cutter head (2).