Stainless steel dinner knife with anti-scald handle

CN224601721UActive Publication Date: 2026-08-07GUANGDONG LIQIANG ECONOMIC & TRADE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG LIQIANG ECONOMIC & TRADE CO LTD
Filing Date
2025-09-17
Publication Date
2026-08-07

AI Technical Summary

Technical Problem

传统的不锈钢餐刀在使用过程中,尤其是在切割热食(如烤肉、热面包等)时,刀身会迅速导热至手柄部分,导致手柄温度升高,用户握持时容易烫伤

Benefits of technology

[0012]1、本实用新型中,通过在手柄顶部设置感温变色盘,使用户能够直观、快速地感知手柄温度变化,有效避免烫伤,提升使用安全性;

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a stainless steel dinner knife of anti scald handle, including knife body and handle, wherein the knife body includes the body and inner core body of integral structure, the handle is made of heat insulating material to and is covered in the outer wall surface of inner core body, the handle one end top of to body is inlayed with temperature sensing disc, the temperature sensing disc is made of temperature sensing disc material, when the temperature on temperature sensing disc exceeds temperature sensing disc's discoloration threshold value, then temperature sensing disc corresponds and has color change, the discoloration threshold value of temperature sensing disc is 55~60 DEG C. The utility model discloses the design scheme of the proposal, through setting temperature sensing disc at the top of handle, make user can intuitively, fastly perceive handle temperature change, effectively avoid scald, improve use safety.
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Description

Technical Field

[0001] This utility model belongs to the field of tableware technology, specifically a stainless steel knife with a heat-resistant handle. Background Technology

[0002] Stainless steel knives are widely used in homes and restaurants due to their sturdiness, hygiene, ease of cleaning, and aesthetic appeal. However, traditional stainless steel knives, especially when cutting hot food (such as roast meat or hot bread), cause the blade to quickly conduct heat to the handle, leading to burns. While some existing heat-resistant knives use heat-insulating materials to cover the handle, users still cannot visually determine if the handle is overheating, posing inconvenience and safety hazards. Utility Model Content

[0003] The purpose of this utility model is to provide a stainless steel knife with a heat-resistant handle in order to solve the problems mentioned above.

[0004] The technical solution adopted by this utility model is as follows: A stainless steel dinner knife with a heat-resistant handle includes a blade body and a handle. The blade body includes a blade body and an inner core, which are integrally structured. The handle is made of heat-insulating material and covers the outer wall of the inner core. A thermochromic disc is embedded at the top of the end of the handle facing the blade body. The thermochromic disc is made of thermochromic material. When the temperature on the thermochromic disc exceeds the color-changing threshold of the thermochromic disc, the thermochromic disc changes color accordingly.

[0005] In a preferred embodiment, the color-changing threshold of the thermochromic disc is 55°C to 60°C.

[0006] In a preferred embodiment, when the color-changing threshold of the thermochromic disc is exceeded, the thermochromic disc changes from yellow to red.

[0007] In a preferred embodiment, the bottom of the handle extends downward toward the end facing the blade to form a retaining edge, and the end of the retaining edge facing away from the blade is provided with an arc-shaped transition surface.

[0008] In a preferred embodiment, the inner core has a cross-shaped cross section and is integrally formed with the handle in a mold as an insert.

[0009] In a preferred embodiment, the outer surface of the inner core is provided with a plurality of reinforcing protrusions at intervals.

[0010] In a preferred embodiment, the handle's tail end face is provided with a hook.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0012] 1. In this utility model, by setting a temperature-sensitive color-changing disc on the top of the handle, users can intuitively and quickly perceive changes in the handle temperature, effectively avoiding burns and improving safety during use;

[0013] 2. In this utility model, a baffle is provided at the bottom of the handle. The baffle can limit the position of the user when holding the handle, and prevent the user from holding the handle too close to the blade, which can further prevent burns.

[0014] 3. In this utility model, the handle is covered with heat-insulating material to cover the cross-shaped cross-section inner core, which not only has good heat insulation performance, but also significantly improves the connection strength and durability between the handle and the blade body through structural design. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the entire utility model;

[0016] Figure 2 This is a simplified cross-sectional planar structural diagram of the present invention.

[0017] Figure 3 This is a simplified schematic diagram of the cross-sectional planar structure of the inner core in this utility model.

[0018] Marked in the image:

[0019] 100 - Blade;

[0020] 200 - Handle, 210 - Edge guard, 220 - Hanging ear;

[0021] 300-Thermochromic color-changing disc;

[0022] 400 - Inner core, 410 - Reinforcing bumps. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0024] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and 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 utility model.

[0025] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0026] Reference Figure 1-3 A stainless steel cutlery with a heat-resistant handle includes a blade and a handle 200. The blade comprises a one-piece blade body 100 and an inner core 400. The handle 200 is made of heat-insulating material and covers the outer wall of the inner core 400. A thermochromic disc 300 is embedded in the top of the end of the handle 200 facing the blade body 100. The thermochromic disc 300 is made of thermochromic material. When the temperature on the thermochromic disc 300 exceeds its color-changing threshold, the thermochromic disc 300 changes color accordingly. By setting the thermochromic disc 300 on the top of the handle 200, users can intuitively and quickly perceive the temperature change of the handle 200, effectively avoiding burns and improving safety during use.

[0027] Among them, thermochromic materials are already a known and implemented technology, and their specific components will not be described here.

[0028] In this embodiment, the color-changing threshold of the temperature-sensitive color-changing disc 300 is 55℃~60℃. When the temperature exceeds the color-changing threshold of the temperature-sensitive color-changing disc 300, the temperature-sensitive color-changing disc 300 changes from yellow to red. This temperature range is close to the critical point where the human body feels hot to the touch, which has a good warning effect. When the temperature exceeds the threshold, the temperature-sensitive color-changing disc can change from yellow to red. The color contrast is bright and easy for users to identify.

[0029] Of course, it is understood that in other embodiments, other colors may be changed to other colors, or from colored to colorless, or from colorless to colored; this is not limited here.

[0030] In this embodiment, please refer to Figure 1 As shown, the bottom of the handle 200 extends downwards towards the blade 100 to form a retaining edge 210. The end of the retaining edge 210 facing away from the blade 100 is provided with an arc-shaped transition surface. The retaining edge 210 at the bottom of the handle 200 can limit the position of the user when holding the handle, preventing the user from holding the handle too close to the blade, which can further prevent burns. Moreover, the arc-shaped transition surface design can also enhance the comfort when the hand contacts the retaining edge 210.

[0031] In this embodiment, please refer to Figure 2 and Figure 3As shown, the inner core 400 has a cross-shaped cross section. The inner core 400 is integrally formed with the handle 200 in the mold as an insert. The handle 200 is covered with heat-insulating material to cover the cross-shaped cross section of the inner core, which not only has good heat insulation performance, but also significantly improves the connection strength and durability between the handle and the blade through structural design.

[0032] The handle 200 is preferably made of polypropylene.

[0033] In this embodiment, please refer to Figure 2 and Figure 3 As shown, the outer surface of the inner core 400 is provided with a plurality of reinforcing protrusions 410 at intervals. The reinforcing protrusions 410 further enhance the bonding force between the inner core 400 and the handle 200, preventing loosening after long-term use.

[0034] In this embodiment, a hanging ear 220 is provided on the end face of the handle 200. The hanging ear 220 is designed to facilitate the storage and retrieval of the knife, which is in line with the user's actual usage habits.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A stainless steel dinner knife with a heat-resistant handle, characterized in that, The device includes a blade and a handle. The blade consists of a single-piece blade body and an inner core. The handle is made of heat-insulating material and covers the outer wall of the inner core. A thermochromic disc is embedded at the top of the end of the handle facing the blade body. The thermochromic disc is made of thermochromic material. When the temperature on the thermochromic disc exceeds its color-changing threshold, the thermochromic disc changes color accordingly.

2. The stainless steel dinner knife with a heat-resistant handle as described in claim 1, characterized in that: The color-changing threshold of the temperature-sensitive color-changing disc is 55℃~60℃.

3. The stainless steel dinner knife with a heat-resistant handle as described in claim 1, characterized in that: When the color-changing threshold of the thermochromic color-changing disc is exceeded, the thermochromic color-changing disc changes from yellow to red.

4. A stainless steel dinner knife with a heat-resistant handle as described in claim 1, characterized in that: The bottom of the handle extends downwards towards the blade to form a retaining edge, and the end of the retaining edge facing away from the blade has an arc-shaped transition surface.

5. A stainless steel dinner knife with a heat-resistant handle as described in claim 1, characterized in that: The inner core has a cross-shaped cross section and is integrally formed with the handle in the mold as an insert.

6. A stainless steel dinner knife with a heat-resistant handle as described in claim 1, characterized in that: The outer surface of the inner core is provided with multiple reinforcing protrusions at intervals.

7. A stainless steel dinner knife with a heat-resistant handle as described in claim 1, characterized in that: The handle has a hanging ear on its tail end face.