Split pedicure knife
The split-type handle and retaining spring structure allow for detachable installation of the handle and blade, solving the problem of rapid blade wear in traditional pedicure knives. This enables multiple blade replacements and flexible use, improving the lifespan and safety of the pedicure knife.
Patent Information
- Application Number
- CN202422471213.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-10-12
AI Technical Summary
Traditional one-piece pedicure blades wear out quickly and have a short lifespan. The need to use multiple blades leads to resource waste and a poor consumer experience.
The detachable pedicure knife is designed with a handle, retaining spring, and detachable blade structure, allowing for separate installation of the handle and blade. This supports multiple blade replacements, extends service life, and adapts to different needs.
It extends the lifespan of the pedicure knife, reduces resource waste, improves the flexibility and safety of use, reduces the risk of hand cuts, and is simple and convenient to operate.
Smart Images

Figure CN223541980U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pedicure knife technology, and in particular to a split-type pedicure knife. Background Technology
[0002] Pedicure knives are common tools used to remove dead skin and calluses from the feet. Traditional pedicure knives typically have a single, integrated handle and blade. These knives are simple, inexpensive, and meet basic pedicure needs. However, in practice, the blade, being a crucial component for scraping and trimming calluses, is a consumable. After repeated use, the blade wears down and becomes dull, eventually requiring disposal, resulting in a short lifespan and wasted resources. Furthermore, multiple pedicure knives are often needed for various pedicure needs, leading to a poor consumer experience. Utility Model Content
[0003] To address the shortcomings of existing manufacturing technologies, the applicant provides a detachable pedicure knife. By incorporating a handle, retaining spring, and blade, the handle and blade can be detachably installed, allowing for the replacement of various blades, thereby extending the knife's lifespan, avoiding resource waste, and achieving multiple uses from a single knife.
[0004] The technical solution adopted in this utility model is as follows:
[0005] A split-type pedicure knife includes a handle. The handle has the following structure: a handle body, a first groove on the head end wall of the handle body, and a second groove on one side wall of the handle body. The first groove and the second groove are adjacent and connected, thereby forming a step between the first groove and the second groove. A retaining spring is installed in both the first groove and the second groove. The handle body is detachably mounted to the blade via the retaining spring.
[0006] Insert the blade into the first slot and clamp it with a snap ring to install the blade;
[0007] The blade is pulled out of the first slot to disassemble it, and the retaining spring is limited by the step when the blade is pulled out.
[0008] As a further improvement to the above technical solution:
[0009] The tail end of the handle body is rounded.
[0010] The outer wall surface of the handle body is provided with anti-slip blocks.
[0011] The first slot adopts a trapezoidal slot, thereby forming a first inclined surface arranged opposite to each other on the inner wall of the first slot. The first inclined surface is used to guide the blade.
[0012] The second slot is a square slot.
[0013] The structure of the retaining spring is as follows: it includes two oppositely arranged clamping parts, the tail ends of the two clamping parts are connected by a connecting part, the head ends of the two clamping parts form an opening, and the middle part of the two clamping parts is provided with an arc-shaped waist, which is used to clamp the blade.
[0014] The connecting part is arc-shaped.
[0015] The blade has the following structure: it includes a blade body, a cutting edge is provided at the head end of the blade body, a connecting piece is provided at the tail end of the blade body, and a second inclined surface is provided on both opposite side walls of the blade body.
[0016] The blade is either a flat blade or a beveled blade.
[0017] The connecting piece has a V-shaped groove.
[0018] The beneficial effects of this utility model are as follows:
[0019] This utility model has a compact and reasonable structure and is easy to operate. By setting up a handle, a retaining spring, and a blade, the handle and blade can be detachably installed, allowing the blade to be replaced, thus extending the service life of the pedicure knife and avoiding resource waste. At the same time, different types of blades can be replaced to match different usage needs, realizing multiple uses for one knife.
[0020] This utility model also has the following advantages:
[0021] (1) By setting a step, the arc-shaped connecting part can be limited, thereby preventing the retaining ring from being pulled out when the blade is pulled out.
[0022] (2) In this utility model, by setting a rounded corner at the end of the handle body, a smooth transition is formed, which eliminates the sharp edges and corners on the handle body and reduces the risk of hand injuries caused by collision or accidental touch during use.
[0023] (3) By setting anti-slip blocks on the outer wall of the handle body, the friction between the operator's hand and the handle body can be increased, ensuring that even if the hands are sweaty or encounter a humid environment during operation, the pedicure knife can be effectively prevented from slipping out of the hand, thus ensuring the safety and stability of the operation.
[0024] (4) By setting the first inclined surface and the second inclined surface in this utility model, the blade can stop moving after entering the first groove a certain distance, ensuring that the length of the blade left outside the first groove is suitable for the length required when trimming feet; at the same time, the first inclined surface has a guiding effect on the movement of the blade in the first groove.
[0025] (5) The blade of this utility model is a flat blade or a beveled blade to meet different user needs and improve the flexibility of use.
[0026] (6) This utility model has a simple structure, simple manufacturing process and low manufacturing cost; at the same time, the disassembly and assembly process between the handle and the blade does not require the use of external tools, and the operation is simple and convenient. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the structure of this utility model.
[0028] Figure 2 for Figure 1 A sectional view of section AA in the middle.
[0029] Figure 3 for Figure 1 Top view.
[0030] Figure 4 This is a schematic diagram of the tool holder in this utility model.
[0031] Figure 5 This is a full sectional view of the tool holder in this utility model.
[0032] Figure 6 This is a schematic diagram of the snap ring in this utility model.
[0033] Figure 7 This is a schematic diagram of the structure of the blade in this utility model when it adopts a flat-edged blade.
[0034] Figure 8 This is a schematic diagram of the structure of the blade in this utility model when it adopts a beveled cutting edge.
[0035] The components include: 1. handle; 2. retaining ring; 3. blade;
[0036] 101. Handle body; 102. Rounded corner; 103. First groove; 104. Second groove; 105. First bevel; 106. Step;
[0037] 201. Clamping part; 202. Connecting part; 203. Opening; 204. Curved waist;
[0038] 301. Blade body; 302. Connecting piece; 303. Blade edge; 304. V-groove; 305. Second bevel. Detailed Implementation
[0039] The specific embodiments of this utility model are described below with reference to the accompanying drawings.
[0040] The structure and function of this utility model are as follows:
[0041] like Figures 1-8As shown, a split-type pedicure knife includes a handle 1. The handle 1 has the following structure: a handle body 101, a first groove 103 on the head end wall of the handle body 101, and a second groove 104 on one side wall of the handle body 101. The first groove 103 and the second groove 104 are adjacent and connected, thereby forming a step 106 between the first groove 103 and the second groove 104. A retaining spring 2 is installed in both the first groove 103 and the second groove 104. The handle body 101 is detachably mounted to the blade 3 via the retaining spring 2. The blade 3 is inserted into the first groove 103 and clamped by the retaining spring 2, thereby installing the blade 3. The blade 3 is pulled out of the first groove 103, thereby disassembling the blade 3. When the blade 3 is pulled out, the retaining spring 2 is limited by the step 106. By setting up the handle 1, retaining spring 2, and blade 3, the handle 1 and blade 3 can be detachably installed, allowing the pedicure knife to replace the blade 3, thereby extending the service life of the pedicure knife and avoiding resource waste; at the same time, different types of blades 3 can be replaced to match different usage needs, realizing one knife for multiple uses.
[0042] This utility model discloses a split-type pedicure knife, comprising a handle 1, a retaining spring 2, and a blade 3. The blade 3 is detachably mounted on the head end of the handle 1 via the retaining spring 2. The handle 1, retaining spring 2, and blade 3 can be made of metal or plastic.
[0043] like Figures 4-5 As shown, the structure of the handle 1 is as follows: it includes a handle body 101, which is elongated.
[0044] A first groove 103 is formed on the head end wall of the handle body 101, and a second groove 104 is formed on one side wall of the handle body 101. The first groove 103 and the second groove 104 are adjacent and connected, thereby forming a step 106 between the first groove 103 and the second groove 104. The first groove 103 and the second groove 104 are T-shaped as a whole. The first groove 103 and the second groove 104 are used to install the retaining spring 2. The step 106 can limit the arc-shaped connecting part 202 of the retaining spring 2, thereby preventing the retaining spring 2 from being pulled out when the blade 3 is pulled out.
[0045] The end of the handle body 101 is provided with a rounded corner 102 to form a smooth transition, eliminating sharp edges and corners on the handle body 101 and reducing the risk of hand injuries caused by collisions or accidental touches during use.
[0046] The outer wall of the handle body 101 is provided with anti-slip blocks, which can increase the friction between the operator's hand and the handle body 101, ensuring that even if the hands are sweaty or the environment is humid during operation, the pedicure knife can be effectively prevented from slipping out of the hand, thus ensuring the safety and stability of operation.
[0047] The first groove 103 adopts a trapezoidal groove, thereby forming a first inclined surface 105 arranged opposite to each other on the inner side wall of the first groove 103. The first inclined surface 105 is used to guide the blade 3. In addition, the first inclined surface 105 corresponds to the second inclined surface 305 on the blade 3. The first inclined surface 105 and the second inclined surface 305 cooperate so that the blade 3 stops moving after entering the first groove 103 for a certain distance, ensuring that the length of the blade 3 left outside the first groove 103 is suitable for the length required for foot trimming.
[0048] The second slot 104 is a square slot. The second slot 104 is used to accommodate the connecting part 202 of the retaining ring 2. At the same time, it cooperates with the first slot 103 to form a step 106 to limit the retaining ring 2.
[0049] like Figure 6 As shown, the snap ring 2 has the following structure: it includes two opposing locking parts 201, the tail ends of which are connected by a connecting part 202, and the head ends of the two locking parts 201 form an opening 203. Each locking part 201 has an arc-shaped waist 204 in its middle section, which is used to clamp the blade 3. The blade 3 is pushed in through the opening 203, and the arc-shaped waist 204 expands as the blade 3 is pushed in. After the blade 3 is fully inserted, the arc-shaped waist 204 clamps the blade 3, preventing it from loosening during use while also preventing it from jamming and becoming impossible to remove.
[0050] The connecting part 202 is arc-shaped and can cooperate with the step 106 to prevent the retaining spring 2 from coming out of the slot.
[0051] like Figures 7-8 As shown, the blade 3 has the following structure: it includes a blade body 301, a cutting edge 303 at the head end of the blade body 301, and a connecting piece 302 at the tail end of the blade body 301. The blade body 301 has two opposite side walls with second inclined surfaces 305. A V-groove 304 is formed on the connecting piece 302. The width of the connecting piece 302 is smaller than the width of the blade body 301. The connecting piece 302 is used to cooperate with the retaining spring 2. The arc-shaped waists 204 of the two clamping parts 201 clamp the connecting piece 302, thereby holding the blade 3 in place.
[0052] like Figure 7 As shown, the cutting edge 303 adopts a flat cutting edge, or, as... Figure 8 As shown, the blade 303 adopts a beveled edge to meet different user needs and improve usage flexibility.
[0053] The disassembly and assembly process of this utility model is as follows:
[0054] First, push the retaining ring 2 into the inside of the tool holder body 101 from the first slot 103 until the connecting part 202 is engaged in the second slot 104. At this time, the step 106 limits the retaining ring 2.
[0055] When the blade 3 is installed on the handle 1, the blade 3 is inserted into the handle body 101 through the first slot 103. In addition, the connecting piece 302 is inserted between the two clamping parts 201 through the opening 203 and is clamped by the arc-shaped waist 204 of the two clamping parts 201. At the same time, the blade body 301 is inserted into the first slot 103 until the second inclined surface 305 is tightly fitted with the first inclined surface 105, and the blade 3 is installed.
[0056] When removing the blade 3 from the handle 1, the blade 3 is pulled out from the first slot 103, and the connecting piece 302 is disengaged from the clamping part 201, thereby completing the disassembly of the blade 3.
[0057] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.
Claims
1. A detachable pedicure knife, characterized in that: The tool includes a handle (1), the structure of which is as follows: it includes a handle body (101), a first groove (103) is opened on the head end wall of the handle body (101), a second groove (104) is opened on one side wall of the handle body (101), the first groove (103) and the second groove (104) are connected adjacently, thereby forming a step (106) between the first groove (103) and the second groove (104), and a retaining ring (2) is installed in both the first groove (103) and the second groove (104). The handle body (101) is detachably mounted to the blade (3) through the retaining ring (2). Insert the blade (3) into the first slot (103) and clamp the blade (3) with the snap ring (2) to install the blade (3); The blade (3) is pulled out of the first slot (103) to disassemble the blade (3). When the blade (3) is pulled out, the retaining ring (2) is limited by the step (106).
2. The split-type pedicure knife as described in claim 1, characterized in that: The tail end of the handle body (101) is provided with a rounded corner (102).
3. A split-type pedicure knife as described in claim 1, characterized in that: The outer wall surface of the handle body (101) is provided with anti-slip blocks.
4. A split-type pedicure knife as described in claim 1, characterized in that: The first slot (103) adopts a trapezoidal slot, thereby forming a first inclined surface (105) arranged opposite to each other on the inner wall of the first slot (103), the first inclined surface (105) is used to guide the blade (3).
5. A split-type pedicure knife as described in claim 1, characterized in that: The second slot (104) is a square slot.
6. A split-type pedicure knife as described in claim 1, characterized in that: The structure of the retaining ring (2) is as follows: it includes two oppositely arranged clamping parts (201), the tail ends of the two clamping parts (201) are connected by a connecting part (202), the head ends of the two clamping parts (201) form an opening (203), and the middle part of the two clamping parts (201) is provided with an arc-shaped waist (204), which is used to clamp the blade (3).
7. A split-type pedicure knife as described in claim 6, characterized in that: The connecting part (202) is arc-shaped.
8. A split-type pedicure knife as described in claim 1, characterized in that: The blade (3) has the following structure: it includes a blade body (301), the blade body (301) has a cutting edge (303) at the head end, a connecting piece (302) at the tail end, and a second inclined surface (305) on each of the opposite side walls of the blade body (301).
9. A split-type pedicure knife as described in claim 8, characterized in that: The blade (303) is a flat blade or a beveled blade.
10. A split-type pedicure knife as described in claim 8, characterized in that: The connecting piece (302) has a V-shaped groove (304).