Electric hair cutter and thermochromic cutter head thereof

Abstract

The utility model discloses an electric hair cutter and a heat discoloration cutter head thereof, the heat discoloration cutter head of the electric hair cutter comprises a fixed cutter and a movable cutter arranged on the fixed cutter, and at least one of the fixed cutter and the movable cutter is embedded with a heat discoloration element. According to the utility model, when the temperature of the cutter head rises to exceed a set value, the color of the thermochromic element is changed from the first color to the second color, the temperature change of the cutter head can be visually prompted, the thermochromic element adopts a detachable design and is directly mounted in the mounting hole in the fixed cutter or the movable cutter, the manufacturing process is simpler, and the replacement is convenient; and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of hairdressing tools, specifically to an electric hair clipper and its temperature-sensitive color-changing blade. Background Technology

[0002] Electric hair clippers, as one of the core tools for hairdressing and pet grooming, work by using the relative movement of fixed and moving blades in the head to remove hair. However, during prolonged use, the blade head can easily overheat, posing a risk of burning the scalp or the pet's skin.

[0003] To address this issue, Chinese invention patent CN116394312A proposes a hair clipper head and clipper with temperature sensing function. This technical solution involves spraying reversible temperature-sensitive color-changing paint onto the surfaces of the fixed and moving blades. When the blade temperature exceeds a preset threshold, the paint changes from a first color to a second color, thus visually alerting the hairdresser or beautician to the temperature change. This allows for timely adjustment of usage time and effectively prevents burns.

[0004] However, this technical solution has certain limitations: First, the manufacturing process is complex; second, the reversible thermochromic paint is prone to peeling in actual use, and once the paint peels off, the entire fixed or moving blade needs to be replaced, resulting in high maintenance costs. Utility Model Content

[0005] To address the aforementioned shortcomings, the technical problem to be solved by this utility model is to provide an electric hair clipper and its temperature-sensitive color-changing blade, so as to solve the problem of high maintenance costs in the prior art.

[0006] Therefore, this application provides a thermochromic blade for electric clippers, including a fixed blade and a movable blade disposed on the fixed blade. At least one of the fixed blade and the movable blade is embedded with a thermochromic element. When the temperature of the fixed blade or the movable blade where the thermochromic element is located rises above a set value, the color of the thermochromic element changes from a first color to a second color.

[0007] Based on the above technical solution, when the blade head temperature rises above the set value, the color of the thermochromic element changes from the first color to the second color, thus intuitively alerting the hairdresser or beautician to the temperature change of the blade head and promptly reminding them to take appropriate measures to avoid burns to the scalp or pet's skin due to excessive blade head temperature. The thermochromic element features a detachable design, installed in a mounting hole on the fixed or moving blade, simplifying the manufacturing process. Furthermore, when the thermochromic element ages and fails, it can be easily replaced without replacing the entire blade head, reducing maintenance costs.

[0008] In the above technical solution, preferably, the fixed blade body is provided with a first through hole penetrating its top and bottom surfaces, and the thermochromic element includes a first thermochromic element, which is detachably inserted into the first through hole. In this embodiment, the temperature change of the fixed blade can be observed on both the top and bottom surfaces of the fixed blade body, making it convenient to use.

[0009] In the above technical solution, preferably, countersunk holes are provided at both ends of the first through hole, and the first thermochromic element is adapted to the first through hole. In this embodiment, the first thermochromic element is less likely to fall off after installation.

[0010] In the above technical solution, preferably, the first thermochromic element is one and is disposed on the longitudinal center line of the fixed blade body.

[0011] In the above technical solution, preferably, the moving blade body is provided with a second through hole penetrating its top and bottom surfaces, and the thermochromic element includes a second thermochromic element, which is detachably inserted into the second through hole. This embodiment is more conducive to observing the temperature change of the blade tip.

[0012] In the above technical solution, preferably, there are two second through holes, which are arranged laterally at intervals along the moving blade body of the moving blade, so as to facilitate observation of the overall temperature change of the blade head.

[0013] In the above technical solution, preferably, countersunk holes are provided at both ends of the second through hole, and the second thermochromic element is adapted to the second through hole, so that the second thermochromic element is not easy to fall off after installation.

[0014] In the above technical solution, preferably, the moving blade body is provided with a second through hole penetrating its top and bottom surfaces, and the thermochromic element includes a second thermochromic element, which is detachably inserted into the second through hole. Providing thermochromic elements on both the fixed blade and the moving blade improves reliability.

[0015] In the above technical solution, preferably, the thermochromic element is a thermochromic latex stopper, a thermochromic silicone stopper, or a thermochromic plastic.

[0016] This utility model also provides an electric clipper, including a temperature-sensitive color-changing blade head with the above-described structure.

[0017] As can be seen from the above technical solution, the electric hair clipper and its temperature-sensitive color-changing blade provided by this utility model solve the problem of high maintenance costs in the prior art. Compared with the prior art, this utility model has the following beneficial effects:

[0018] A thermochromic element is embedded in at least one of the fixed and moving blades of the electric clipper head. When the blade head temperature rises, the color of the thermochromic element changes from the first color to the second color, which can intuitively indicate the temperature change of the blade head. The thermochromic element adopts a detachable design and is installed in the mounting hole on the fixed or moving blade. The manufacturing process is simpler, the replacement is convenient, and the maintenance cost is reduced. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments of this utility model or the prior art will be briefly introduced and explained below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the thermochromic blade of the electric hair clipper provided by this utility model;

[0021] Figure 2 for Figure 1 The exploded structure diagram of the thermochromic blade is shown.

[0022] Figure 3 This is a schematic diagram of the fixed blade in this utility model;

[0023] Figure 4 for Figure 3 A schematic diagram showing the fixed tool viewed from below;

[0024] Figure 5 for Figure 3 A schematic diagram of the assembly of the first thermochromic element in the fixed blade shown.

[0025] Figure 6 for Figure 3 AA section view in the middle;

[0026] Figure 7 This is a schematic diagram of the first thermochromic element in this utility model;

[0027] Figure 8 This is a schematic diagram of the moving blade in this utility model;

[0028] Figure 9 for Figure 8 A schematic diagram showing the upward view of the moving tool;

[0029] Figure 10 for Figure 8 A schematic diagram of the assembly of the second thermochromic element in the moving blade shown;

[0030] Figure 11 for Figure 8BB cross-section diagram in the middle;

[0031] Figure 12 for Figure 10 Enlarged view of section C in the image;

[0032] Figure 13 for Figure 11 Enlarged view of part D.

[0033] Figures 1-13 The correspondence between the parts is as follows:

[0034] Fixed blade 10, moving blade 20, thermochromic element 30;

[0035] Fixed cutter body 11, first through hole 12;

[0036] First thermochromic element 31, flange 311;

[0037] Moving blade body 21, second through hole 22, second thermochromic element 32. Detailed Implementation

[0038] During prolonged use, the blades of electric hair clippers can easily overheat, posing a risk of burns to the scalp or pet's skin. Current technology, which uses reversible thermochromic paint to indicate temperature changes, suffers from complex manufacturing processes and paint peeling. Once the paint wears off, either the fixed or moving blade needs to be replaced, resulting in high maintenance costs.

[0039] This application proposes to embed a temperature-sensitive color-changing element in at least one of the fixed and moving blades of an electric hair clipper head. When the blade temperature rises above a set value, the color of the temperature-sensitive color-changing element changes from a first color to a second color, thus visually indicating the temperature change of the blade to the hairdresser or beautician, facilitating timely adjustment of usage time and effectively preventing burns.

[0040] Compared to existing surface coating solutions, the thermochromic element in this application features a detachable design and is installed in a mounting hole on either the fixed or moving blade, simplifying the manufacturing process. Furthermore, when the thermochromic element ages and fails, it can be easily replaced without replacing the entire blade head, reducing maintenance costs.

[0041] 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 embodiments described below 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.

[0042] To provide a clearer explanation and description of the technical solution and implementation method of this utility model, several preferred specific embodiments for implementing the technical solution of this utility model are introduced below.

[0043] It should be noted that the directional terms such as "inner" and "outer", "front" and "back" and "left" and "right" in this article are based on the product's usage status. Obviously, the use of these directional terms does not limit the scope of protection of this solution.

[0044] like Figure 1 , Figure 2 As shown, the present invention provides a temperature-sensitive color-changing blade head for electric hair clippers, including a fixed blade 10 and a movable blade 20 disposed on the fixed blade 10. The movable blade 20 is driven by a driving device inside the electric hair clipper housing to reciprocate in the lateral direction relative to the fixed blade 10 to achieve hair removal.

[0045] At least one of the fixed blade 10 and the moving blade 20 is equipped with a thermochromic element 30. The thermochromic element is a thermochromic latex plug, a thermochromic silicone plug, or a thermochromic plastic, made by adding thermochromic powder to latex, silicone, or plastic, and is commercially available. When the blade head temperature rises above a set value, the temperature is conducted to the thermochromic element, and the element's color changes from a first color to a second color. This visually displays the blade head temperature, promptly alerting the hairdresser or beautician to take appropriate measures, such as spraying coolant, soaking and cleaning, or replacing the blade head, to prevent burns to the scalp or pet's skin due to excessive blade head temperature.

[0046] For example, the color of the thermochromic strip changes from white to red, from colorless to pink, or from green to red when the temperature rises. The setting of the first and second colors can be set according to actual use, and this application does not impose any restrictions.

[0047] In addition, the thermochromic element can also be made of metal with a thermochromic pigment coating on the surface. The metal thermochromic element can be connected by a two-part threaded connection to achieve installation in the through hole on the fixed tool and / or moving tool.

[0048] The solution proposed in this application can be implemented using the following three embodiments.

[0049] Example 1.

[0050] In this embodiment 1, the thermochromic element is disposed on the fixed blade body of the fixed blade, and can be inserted into the top, bottom or side surface of the fixed blade body.

[0051] like Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7As shown, in one embodiment, the fixed blade body 11 of the fixed blade 10 is provided with a first through hole 12 that penetrates its top and bottom surfaces, and the thermochromic element includes a first thermochromic element 31, which is detachably inserted into the first through hole 12.

[0052] The structure adopts a first through hole 12 that penetrates the top and bottom surfaces of the fixed blade body 11. The first temperature-sensitive color-changing element 31 can be seen on both the top and bottom surfaces of the fixed blade body 11. Therefore, the temperature change of the fixed blade 10 can be directly observed from either the top or bottom surface of the fixed blade body 11, making it convenient to use.

[0053] Normally, there is one first temperature-sensitive color-changing element 31, which is set on the longitudinal center line of the fixed blade body 11 of the fixed blade 10 and close to the front end of the blade head, so as to quickly sense the temperature change of the blade head.

[0054] In another embodiment, countersunk holes are provided at both ends of the first through hole 12, and the first thermochromic element 31 is adapted to the first through hole 12. That is, flanges 311 are provided at both ends of the first thermochromic element 31, and the flanges 311 are adapted to the countersunk holes. With this design, the first thermochromic element 31 is not easy to fall off after installation and is convenient to use.

[0055] The end face of the first thermochromic element 31 is flush with the surface of the fixed blade body 11, so as not to affect the hair cutting operation.

[0056] In addition, although Figure 7 The upper and lower flanges 311 of the first thermochromic element 31 shown are both circular. However, in practical applications, the flanges 311 can also adopt other shapes, such as square, rectangular, or elliptical. Furthermore, to more clearly observe the temperature change of the cutting head, the upper flange 311 of the first thermochromic element 31 can also be designed as a long strip arranged laterally. Therefore, the countersunk hole on the first through hole 12 should be redesigned accordingly.

[0057] In this embodiment 1, the thermochromic element is placed on the fixed blade body. Since the fixed blade is in direct contact with the scalp or pet's skin, the reminder effect of this embodiment 1 is the most effective.

[0058] Example 2.

[0059] In this second embodiment, the thermochromic element is disposed on the moving blade body of the moving blade, and can be inserted into the top or side surface of the moving blade body. Compared with embodiment 1, since the moving blade is located above the fixed blade, it is more convenient to observe the temperature change of the blade tip by placing the thermochromic element on the moving blade body of the moving blade.

[0060] like Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 As shown, in one embodiment, the moving blade body 21 of the moving blade 20 is provided with a second through hole 22 that penetrates its top and bottom surfaces, and the thermochromic element includes a second thermochromic element 32, which is detachably inserted into the second through hole 22.

[0061] In another embodiment, the second through hole 22 can adopt the same design as the first through hole 12. Countersunk holes are provided at both ends of the second through hole 22. The second thermochromic element 32 is adapted to the second through hole 22, that is, flanges are provided at both ends of the second thermochromic element 32. The flanges are adapted to the countersunk holes, which can prevent the second thermochromic element 32 from being difficult to fall off after installation.

[0062] The end face of the second thermochromic element 32 is flush with the surface of the moving blade body 21, so it does not affect the hair cutting operation.

[0063] In one embodiment, there are two second through holes 22, which are arranged laterally at intervals along the moving blade body 21 of the moving blade 20. Correspondingly, a second thermochromic element 32 is installed in each second through hole 22.

[0064] Alternatively, another implementation method can be adopted, in which a second through hole 22 is provided and is located on the longitudinal centerline of the moving blade body 21, and the upper flange of the second thermochromic element 32 is elongated and is arranged transversely along the moving blade body 21. This method makes the observation of temperature changes more obvious.

[0065] Example 3.

[0066] In this embodiment 3, temperature-sensitive color-changing elements are provided on both the moving blade body of the moving blade and the fixed blade body of the fixed blade, thereby improving reliability.

[0067] This utility model also provides an electric hair clipper with the above-mentioned temperature-sensitive color-changing blade head, which can intuitively display the blade head temperature and promptly remind hairdressers or beauticians to take appropriate measures, such as spraying coolant, soaking and cleaning, or replacing the blade head, to avoid burns to the scalp or pet's skin caused by excessively high blade head temperature.

[0068] Based on the above description of specific embodiments, the electric hair clipper and its temperature-sensitive color-changing blade provided by this utility model have the following advantages compared with the prior art:

[0069] First, at least one of the fixed and moving blades of the electric clipper head is equipped with a temperature-sensitive color-changing element. When the temperature of the blade head rises above a set value, the color of the temperature-sensitive color-changing element will change from the first color to the second color, thus visually displaying the blade head temperature and promptly reminding the hairdresser or beautician to take appropriate measures, such as spraying coolant, soaking and cleaning, or replacing the blade head, to avoid burns to the scalp or pet's skin caused by excessively high blade head temperature.

[0070] Secondly, the thermochromic element features a detachable design, directly installed in the mounting hole on the fixed or moving blade, simplifying the manufacturing process. Furthermore, when the thermochromic element ages and fails, it can be easily replaced without replacing the entire blade head, reducing maintenance costs.

[0071] Finally, it should be noted that the terms "comprising," "including," or any other variations thereof as used herein are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a…" does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0072] This utility model is not limited to the above-described preferred embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model.

Claims

1. A temperature-sensitive color-changing blade head of an electric clipper, comprising a fixed blade and a moving blade arranged on the fixed blade, characterized in that, At least one of the fixed blade and the moving blade is embedded with a temperature-sensitive color-changing element, and when the temperature of the fixed blade or the moving blade where the temperature-sensitive color-changing element is located exceeds a set value, the color of the temperature-sensitive color-changing element changes from a first color to a second color.

2. A temperature-sensitive colour-changing blade head for an electric clipper according to claim 1, characterised in that The fixed blade body of the fixed blade is provided with a first through hole penetrating through the top surface and the bottom surface thereof, and the temperature-sensitive color-changing element includes a first temperature-sensitive color-changing element which is detachably inserted into the first through hole.

3. A temperature-sensitive colour-changing blade head for an electric clipper according to claim 2, characterised in that The first through hole is provided with a counter-sunk hole at each end thereof, and the first temperature-sensitive color-changing element is adapted to the first through hole.

4. A temperature-sensitive colour-changing blade head for an electric clipper according to claim 2, characterised in that The first temperature-sensitive color-changing element is one, and is arranged on the longitudinal center line of the fixed blade body of the fixed blade.

5. A temperature-sensitive colour-changing blade head for an electric clipper according to claim 1 or 2, characterised in that The moving blade body of the moving blade is provided with a second through hole penetrating through the top surface and the bottom surface thereof, and the temperature-sensitive color-changing element includes a second temperature-sensitive color-changing element which is detachably inserted into the second through hole.

6. A temperature-sensitive colour-changing blade head for an electric clipper according to claim 5, characterised in that The second through hole is two, and is arranged along the transverse direction of the moving blade body of the moving blade.

7. A temperature-sensitive colour-changing blade head for an electric clipper according to claim 5, characterised in that The second through hole is provided with a counter-sunk hole at each end thereof, and the second temperature-sensitive color-changing element is adapted to the second through hole.

8. A temperature-sensitive colour-changing blade head for an electric clipper according to claim 2, characterised in that The moving blade body of the moving blade is provided with a second through hole penetrating through the top surface and the bottom surface thereof, and the temperature-sensitive color-changing element includes a second temperature-sensitive color-changing element which is detachably inserted into the second through hole.

9. A temperature-sensitive colour-changing blade head for electric clippers according to claim 5, characterised in that The temperature-sensitive color-changing element is a temperature-sensitive color-changing latex plug, a temperature-sensitive color-changing silica gel plug or a temperature-sensitive color-changing plastic.

10. An electric clipper, characterized by A temperature-sensitive color-changing tool head as claimed in any one of claims 1 to 9.

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