Safe shaver capable of being spirally disassembled

Abstract

The utility model relates to a safe shaver capable of being spirally disassembled. The safe shaver comprises an upper cover, the lower side of the upper cover is connected with the lower cover; a knife handle is arranged at the bottom of the lower cover, and an insertion through hole is formed in the lower cover relative to the knife handle; a rotary groove is formed in the lower cover; the cutter handle penetrates through the insertion through hole, and the upper part of the cutter handle is positioned in the rotary groove; the outer side of the upper portion of the cutter handle is sleeved with a clamping spring. And the upper end of the knife handle is connected with the upper cover through a screwing mechanism. The cover and the knife handle are connected through a screwing mechanism, in the process of disassembly and replacement, the knife handle can rotate relative to the upper cover and the lower cover only by holding the lower cover with a hand and then rotating the knife handle part, and therefore the upper cover ascends and descends, separation or fastening is achieved, and replacement of the blade is achieved. And the lower cover is held by a hand away from the blade, so that the safety is greatly improved, and scratches are prevented.

Description

Technical Field

[0001] The utility model relates to a razor, in particular to a spirally detachable safety razor, belonging to the technical field of safety razors. Background Art

[0002] Manual razors can be divided into two categories. One is called a box razor, which is the most common type of razor today. Usually, a 3-layer or 5-layer razor is fixed in a plastic "small box" to form today's disposable razors. The other is called a safety razor. The safety razor is a very great invention. Although it is not as safe as the "box razors" with 5 / 6 layers of blades used today, it is a very groundbreaking invention compared to straight razors. To this day, it is still an irreplaceable product for many users with thick beards.

[0003] However, the use of safety razors still requires a certain level of proficiency. Common safety razors are divided into an upper cover, a lower cover and a handle. The upper cover and the handle are threaded and fastened, sandwiching the lower cover in the middle. When installing and removing the blade, you need to grasp the upper and lower covers and rotate them together. This is very likely to cause the blade to scratch your fingers due to operational errors, and when installing the blade, the upper cover, blade and lower cover are easily misaligned. This also increases the difficulty of operation. In order to solve the above problems, someone invented the butterfly safety razor, but the butterfly safety razor has high precision requirements and a slightly complex structure, resulting in high costs.

[0004] Therefore, a safety razor is yet to be designed, which can reduce the risk of hands contacting the blades when replacing the blades and improve safety. Utility Model Content

[0005] The purpose of the utility model is to solve the above-mentioned shortcomings and provide a spirally detachable safety razor, which reduces the probability of contact between fingers and blades, improves safety during disassembly and assembly, transfers the connection structure to the inside, has a simple appearance, and reduces the use of plastic parts.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A spirally detachable safety razor comprises an upper cover; the lower side of the upper cover is connected to the lower cover; a handle is arranged at the bottom of the lower cover, and is characterized in that: the lower cover is provided with an insertion hole relative to the handle; a rotary groove is arranged in the lower cover; the handle passes through the insertion hole, and the upper part of the handle is located in the rotary groove; a retaining spring is sleeved on the outer side of the upper part of the handle; the upper end of the handle is connected to the upper cover through a rotary connection mechanism.

[0008] Furthermore, the screw connection mechanism comprises a screw hole formed at the upper end of the knife handle; an internal thread is provided in the screw hole; and the screw hole is coaxially formed inside the knife handle.

[0009] Furthermore, the screw connection mechanism also includes a screw rod arranged at the bottom of the upper cover; an external thread is arranged on the outer side of the screw rod; and the screw rod is screwed into the screw hole.

[0010] Furthermore, a cover is provided at the upper notch of the rotary groove; a through hole is provided on the cover relative to the screw hole; limit blocks are provided on both sides of the cover; and the limit blocks are fixed on the surface of the lower cover.

[0011] Furthermore, a limiting hole is provided on the limiting block; and a limiting column is provided at the bottom of the upper cover.

[0012] Furthermore, the limiting posts are symmetrically arranged on both sides of the screw rod; the limiting posts correspond to the limiting holes one by one; and the limiting posts are inserted into the limiting holes.

[0013] The utility model has the following beneficial effects: the upper cover and the knife handle are connected by a screw connection mechanism, and during the process of disassembly and replacement, only the lower cover needs to be held by hand, and then the knife handle part can be rotated relative to the upper cover and the lower cover, so that the upper cover can be lifted and lowered to achieve separation or tightening, thereby achieving blade replacement. Holding the lower cover by hand, away from the blade position, greatly improves safety and prevents scratches. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the assembly structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the structure of the lower cover.

[0016] Figure 3 It is a structural schematic diagram of the lower cover and the retaining spring.

[0017] Figure 4 It is a schematic diagram of the structure of the lower cover and the sealing cover.

[0018] Figure 5 It is a schematic diagram of the structure of the handle part.

[0019] Figure 6 It is a schematic diagram of the structure of the upper cover.

[0020] In the figure: 1 is an upper cover, 1.1 is a limiting column, 2 is a lower cover, 2.1 is a rotary groove, 3 is a tool handle, 3.1 is a screw hole, 4 is a plug-in through hole, 5 is a retaining spring, 6 is a screw rod, 7 is a sealing cover, 8 is a limiting block, and 8.1 is a limiting hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The terms used herein, including technical and scientific terms, have the same meaning as those generally understood by those skilled in the art, unless the terms are defined differently. It should be understood that the terms defined in commonly used dictionaries have the same meaning as those in the prior art.

[0023] See also Figure 1-Figure 6

[0024] A spirally detachable safety razor comprises an upper cover 1; the lower side of the upper cover 1 is connected to a lower cover 2; a handle 3 is arranged at the bottom of the lower cover 2, and a plug-in through hole 4 is opened in the lower cover 2 relative to the handle 3; a rotary groove 2.1 is arranged in the lower cover 2; the handle 3 passes through the plug-in through hole 4, and the upper part of the handle 3 is located in the rotary groove 2.1; a retaining spring 5 is sleeved on the outer side of the upper part of the handle 3; the upper end of the handle 3 is connected to the upper cover through a screw connection mechanism.

[0025] Furthermore, the screw connection mechanism comprises a screw hole 3.1 formed at the upper end of the knife handle 3; an internal thread is provided in the screw hole 3.1; and the screw hole 3.1 is coaxially formed inside the knife handle 3.

[0026] Furthermore, the screw connection mechanism further comprises a screw rod 6 arranged at the bottom of the upper cover 1; an external thread is arranged on the outer side of the screw rod 6; and the screw rod 6 is screwed into the screw hole 3.1.

[0027] Specifically, in this embodiment, the upper part of the knife handle 3 passes through the plug-in hole 4, and its upper end is in the rotating groove 2.1. Since a retaining spring 5 is provided on the outer side of the upper end of the knife handle 3, in combination with the sealing cover 7, it can ensure that the knife handle 3 is circumferentially fixed in the plug-in hole 4 of the lower cover 2, and at the same time can rotate in the plug-in hole 4.

[0028] Furthermore, a cover 7 is provided at the upper notch of the rotary groove 2.1; a through hole is opened on the cover 7 relative to the screw hole; limit blocks 8 are provided on both sides of the cover 7; and the limit blocks 8 are fixed on the surface of the lower cover 2.

[0029] Furthermore, a limiting hole 8.1 is provided on the limiting block 8; and a limiting column 1.1 is provided at the bottom of the upper cover 1.

[0030] Furthermore, the limiting columns 1.1 are symmetrically arranged on both sides of the screw rod 6; the limiting columns 1.1 correspond to the limiting holes 8.1 one by one; and the limiting columns 1.1 are inserted into the limiting holes 8.1.

[0031] When the limiting column 1.1 of the upper cover 1 is inserted into the limiting hole 8.1 of the limiting block 8, the upper cover 1 cannot rotate. Therefore, when the tool handle 3 is rotated, the upper cover 1 will not be driven to rotate. The rotary motion between the threads can be converted into a linear movement of the upper cover 1, so that the upper cover 1 rises or falls relative to the lower cover 2, thereby realizing disassembly.

[0032] Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the utility model rather than limiting it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A spirally detachable safety razor, comprising an upper cover; the lower side of the upper cover is connected to the lower cover; the bottom of the lower cover is provided with a handle, characterized in that: The lower cover is provided with a plug-in hole relative to the knife handle; a rotating groove is arranged inside the lower cover; the knife handle passes through the plug-in hole, and its upper part is located in the rotating groove; a retaining spring is sleeved on the outer side of the upper part of the knife handle; the upper end of the knife handle is connected to the upper cover through a rotating mechanism.

2. A spirally detachable safety razor according to claim 1, characterized in that: The screw connection mechanism comprises a screw hole arranged at the upper end of the knife handle; an internal thread is arranged in the screw hole; and the screw hole is coaxially arranged inside the knife handle.

3. A spirally detachable safety razor according to claim 2, characterized in that: The screw connection mechanism also includes a screw rod arranged at the bottom of the upper cover; an external thread is arranged on the outer side of the screw rod; and the screw rod is screwed into the screw hole.

4. A spirally detachable safety razor according to claim 3, characterized in that: A sealing cover is arranged at the upper notch of the rotary groove; a through hole is opened on the sealing cover relative to the screw hole; limiting blocks are arranged on both sides of the sealing cover; and the limiting blocks are fixed on the surface of the lower cover.

5. A spirally detachable safety razor according to claim 4, characterized in that: The limit block is provided with a limit hole; and the bottom of the upper cover is provided with a limit column.

6. A spirally detachable safety razor according to claim 5, characterized in that: The limiting posts are symmetrically arranged on both sides of the screw rod; the limiting posts correspond to the limiting holes one by one; and the limiting posts are inserted into the limiting holes.

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