Embedded electric hair cutter pad

Abstract

The utility model discloses an embedded type electric hair cutter pad which comprises a main board structure, a cutting connecting part and a driving connecting part are arranged on the two side faces of the main board structure respectively, the cutting connecting part is connected with a cutting assembly of an electric hair cutter, the driving connecting part is connected with a driving assembly of the electric hair cutter, and the driving connecting part is provided with an inward concave structure. A driving contact part is arranged at the inward concave structure, the driving contact part is in contact connection with a driving assembly of the electric hair cutter, all parts except the driving contact part are integrally formed, and the material of the driving contact part is different from that of other parts; according to the utility model, the contact connection structure of the cutter pad and the driving end is separated, the main board structure is provided with an inward concave structure to form a mounting position, the driving contact part is embedded into the inward concave structure, and the main board structure is connected with the driving contact part.

Description

Technical Field

[0001] The utility model relates to the technical field of electric hair clippers, and more specifically, to an inlaid electric hair clipper blade holder. Background Art

[0002] An electric hair clipper usually consists of an electric motor (driving component) and a set of fixed and movable blades (shearing component). The blades are driven by the electric motor to reciprocate, thereby realizing the cutting of hair. Among them, the blade holder transmits the movement of the electric motor to the shearing component, enabling the shearing component to reciprocate. In this process, the blade holder not only reciprocates left and right together with the shearing component, but also as a connecting structure, the connection points between the blade holder and both ends of the shearing component and the driving component are in a relative motion state, and the blade holder is subject to relatively large wear.

[0003] For cost and market considerations, the blade holder materials used in existing electric hair clippers are mostly single POM (polyoxymethylene). POM is a relatively inexpensive engineering plastic material with good self-lubricating performance and wear resistance. When manufacturing the blade holder, POM is mostly processed integrally to form the blade holder. However, in fact, the surface hardness of POM material is low, it is significantly affected by wear, and its service life in a high-efficiency working state is short, which in turn leads to the shearing action becoming gradually sluggish. The mechanical strength of POM material is also not high. In the case of heavier shearing tasks (such as shearing the hair of animals with larger fibers), the blade holder made of POM is not sufficient to withstand the relatively large load transmitted by the shearing component, further reducing the service life of the product, and in severe cases, deformation or damage will occur. In addition, the heat distortion temperature of POM material is low and its high-temperature resistance is poor. The electric hair clipper will generate a certain amount of heat during operation, especially in the case of high-frequency use, and the heat accumulation will cause the performance of POM material such as strength and hardness to further decrease, and even deformation will occur. Summary of the Invention

[0004] In order to solve the problems brought by the insufficient physical properties of the material in the connection between the blade holder and other components of the electric hair clipper on the basis of cost advantages, the utility model provides an inlaid electric hair clipper blade holder.

[0005] The technical solution of the utility model is as follows:

[0006] An inlaid electric hair clipper blade holder includes a main board structure. Shearing connection parts and driving connection parts are respectively arranged on both side surfaces of the main board structure. The shearing connection part is connected to the shearing component of the electric hair clipper, and the driving connection part is connected to the driving component of the electric hair clipper.

[0007] The driving connection part is provided with a concave structure, and a driving contact part is arranged at the concave structure.

[0008] The driving contact part is in contact connection with the driving component of the electric hair clipper, and the parts other than the driving contact part are integrally formed.

[0009] The material of the driving contact part is different from that of other parts.

[0010] For the above-mentioned inlaid electric clipper blade pad, the shearing connection part includes a plurality of first mounting bosses protruding from the main board structure. The inside of the first mounting boss is recessed to form a first mounting groove, and the first mounting groove is connected to the protruding structure of the shearing component.

[0011] Furthermore, the cross-sectional shape of the first mounting groove is oblong.

[0012] Furthermore, both ends of the first mounting boss are angular, and a plurality of mounting keys are symmetrically arranged in the middle.

[0013] Furthermore, the shearing connection part includes second mounting bosses protruding from both sides of the main board structure. The inside of the second mounting boss is recessed to form a second mounting groove, and the second mounting groove is connected to the protruding structure of the shearing component. The cross-sectional shape of the second mounting groove is circular.

[0014] For the above-mentioned inlaid electric clipper blade pad, third mounting bosses are arranged at the left and right ends of one side of the main board structure close to the driving connection part. Non-penetrating third mounting grooves are arranged on the third mounting bosses, and the third mounting grooves are connected to the torsion springs of the driving component.

[0015] For the above-mentioned inlaid electric clipper blade pad, positioning holes are arranged on the driving contact part.

[0016] For the above-mentioned inlaid electric clipper blade pad, the middle part of the driving contact part protrudes, and both ends converge, so that the distance between the middle parts of the driving contact part is smaller than the distance between the wing-shaped structures of the driving connection part.

[0017] Furthermore, the driving component includes a motor. The motor is provided with an eccentric output rotating shaft vertically upward. The output rotating shaft is inserted between the wing-shaped structures and is clamped by the driving contact part. When the output rotating shaft rotates, the blade pad is driven to move left and right through the driving contact part, and the blade pad drives individual components of the shearing component to move left and right through the shearing connection part.

[0018] For the above-mentioned inlaid electric clipper blade pad, an inner cavity groove is hollowed out on one side of the wing-shaped structure of the driving connection part close to the driving connection part.

[0019] The utility model according to the above solution has the beneficial effect that the structure in which the tool pad is in contact connection with the driving end is separated, an inner concave structure is arranged in the main board structure to form an installation position, and the driving contact part is embedded into the inner concave structure, so as to realize the installation and connection of the main board structure and the driving contact part, and form a complete tool pad structure. In this way, while maintaining the cost advantage of using POM material for the tool pad, the structural characteristics are locally improved, and the wear resistance, strength and heat resistance at the connection part between the tool pad and the driving component are improved, so as to meet the requirement that the tool pad has better physical properties under the condition of little change in the overall cost. Brief Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0021] Figure 1 It is a schematic exploded view of the structure of the present utility model.

[0022] Figure 2 It is a schematic diagram of the structure of the present utility model.

[0023] Figure 3 It is a schematic diagram of the connection structure of the tool pad with the motor and the tool head.

[0024] Among them, the reference numerals in the drawings are as follows:

[0025] 00. Tool pad;

[0026] 01. Main board structure;

[0027] 02. Shearing connection part; 021. First installation boss; 022. First installation groove; 023. Second installation boss; 024. Second installation groove; 025. Installation key;

[0028] 03. Driving connection part; 031. Driving contact part; 032. Wing-shaped structure; 033. Third installation boss; 034. Third installation groove; 035. Positioning hole; 036. Inner cavity groove;

[0029] 04. Motor; 041. Output rotating shaft. Detailed Embodiment

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the following further details the present utility model in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0031] An inlaid electric clipper blade, as Figure 1 , Figure 2 shown, includes a main board structure 01. A cutting connection part 02 and a driving connection part 03 are respectively arranged on two side surfaces of the main board structure 01. The cutting connection part 02 is connected to the cutting component of the electric clipper, and the driving connection part 03 is connected to the driving component of the electric clipper.

[0032] The driving connection part 03 is a set of protruding wing-shaped structures 032. An inner concave structure is arranged at the bottom of one end of the wing-shaped structure 032 close to the driving connection part 03, and a driving contact part 031 is arranged to be embedded in the inner concave structure, so that the driving contact part 031 is connected to the driving connection part 03.

[0033] The driving contact part 031 is in contact connection with the driving component of the electric clipper, and the parts other than the driving contact part 031 are integrally formed.

[0034] The material of the driving contact part 031 is different from that of other parts. In this embodiment, the material of the driving contact part 031 is PEEK, and the materials of the remaining parts are all POM. In other embodiments,

[0035] The utility model separates the structure of the blade 00 in contact connection with the driving end, forms an installation position by arranging an inner concave structure on the main board structure 01, and embeds the driving contact part 031 into the inner concave structure to realize the installation and connection of the main board structure 01 and the driving contact part 031, so as to form a complete blade 00 structure. In this way, on the basis of maintaining the cost advantage of using POM material for the blade 00, the structural characteristics are locally improved, and the wear resistance, strength and heat resistance at the connection part between the blade 00 and the driving component are improved, so as to meet the requirement that the blade 00 has better physical properties under the condition that the overall cost change range is not large.

[0036] Polyoxymethylene (POM) is a thermoplastic engineering plastic. The heat distortion temperature of POM is usually between 100 - 140 °C. Within this temperature range, the POM material begins to deform. In addition, the melting point of POM is approximately 175 - 180 °C, which means that when approaching or slightly above this temperature, POM will begin to soften and flow. In practical applications, the long-term use temperature of POM is usually recommended not to exceed 100 °C to avoid a decline in material properties (mainly wear resistance). In a short period, POM can withstand a temperature slightly higher than the long-term use temperature, but it should not exceed its melting point for a long time to avoid thermal degradation. The connection points at both ends of the cutter pad 00, regarding the connection points at the shear assembly, the shear assembly is commonly known as the cutter head. The cutter head is the main structure for an electric hair clipper to shear hair, so it is inevitably the part with the highest friction frequency and the most temperature rise. Therefore, in the prior art, there are a large number of technologies for wear resistance, cooling, and heat dissipation of the cutter head. Thus, the heat increase at the connection part between the cutter head and the cutter pad 00 is not high, and it has little impact on the cutter pad 00 made of POM material. And relative to the end where the cutter head is in active motion, the wear is relatively small. Therefore, in this application, a modified structure using PEEK with better wear resistance and stability is placed at the part where the cutter pad 00 is connected to the drive assembly.

[0037] Polyetheretherketone (PEEK) is a high-performance special engineering plastic, known for its excellent high-temperature resistance. The softening temperature of PEEK is approximately around 300 °C, which refers to the temperature at which the molecular chains of the polymer begin to break and deform during heating. The heat deflection temperature under load (HDT) of PEEK is usually relatively high, reaching 316 °C, which means that at this temperature, PEEK can maintain its shape under a certain load without significant deformation, and its wear resistance is also higher than that of POM material. Obviously, PEEK has better heat resistance, and its performance is better in a relatively high-temperature environment. Therefore, in this embodiment, the structure connecting the cutter pad 00 to the drive assembly is changed to PEEK material.

[0038] In other embodiments, the material of the driving contact part 031 can also be other materials with better wear resistance and stability, such as Teflon, Hytrel material (Hytrel), nylon, etc.

[0039] After determining the material for the modified part of the structure, considering the differences in the manufacturing processes of POM and PEEK (or other materials with better wear resistance and stability), and being unable to form it integrally like the original cutting pad 00 made of POM, thus, the parts made of POM and PEEK (or other materials with better wear resistance and stability) are set to be assembled and formed separately. In other words, the connecting part between the cutting pad 00 and the driving component and the other structural parts of the cutting pad 00 are made separately and assembled separately. The present utility model adopts an inlaid structure to realize the connection between the connecting part of the cutting pad 00 and the driving component and the other structural parts of the cutting pad 00, and the assembly connection between the two can be realized without adding other structures.

[0040] When the material of the driving contact part 031 is PEEK and the other structure of the cutting pad is made of POM material, in order to ensure dimensional accuracy, the driving contact part 031 is formed by secondary injection molding or two-color mold processing.

[0041] The shear connection part 02 includes a plurality of first mounting bosses 021 protruding from the main board structure 01. The inside of the first mounting boss 021 is recessed to form a first mounting groove 022, and the first mounting groove 022 is connected to the protruding structure of the shear component.

[0042] The shear connection part 02 is the structure for connecting the cutting pad 00 to the shear component, and its main function is to transmit the power of the driving component to the shear component. Usually, considering the heat dissipation of the cutting pad 00 part and the heat dissipation of the cutting head itself, the contact area between the shear connection part 02 and the shear component is reduced as much as possible. Therefore, the shear connection part 02 is connected to the cutting head by a socket mounting method. The cutting head is provided with a protruding structure, so that the cutting head is in a relatively concave state around the protruding structure. The shear connection part 02 uses the first mounting groove 022 to sleeve on the protruding part of the cutting head, and tries to reduce the contact area of other structures of the cutting head.

[0043] In this embodiment, the cross-sectional shape of the first mounting groove 022 is an oblong.

[0044] In this embodiment, the two ends of the first mounting boss 021 are angular, and a plurality of mounting keys 025 are symmetrically arranged in the middle. The number of mounting keys 025 is six, all arranged on the outer surface of the first mounting boss 021, three on the upper part and three on the lower part.

[0045] The shear connection part 02 includes second mounting bosses 023 protruding from both sides of the main board structure 01. A second mounting groove 024 is formed by the depression inside the second mounting bosses 023. The second mounting groove 024 is connected to the protruding structure of the shear component, and the cross-sectional shape of the second mounting groove 024 is circular. The functions of the second mounting bosses 023 and the second mounting groove 024 are the reinforcement structures of the first mounting bosses 021 and the first mounting groove 022. The second mounting bosses 023 and the second mounting groove 024 are used to increase the driving force of the cutter pad 00 on the shear component. Moreover, when the blade moves to the left and right ends, the driving effect of the second mounting bosses 023 and the second mounting groove 024 can quickly reverse the speed direction of the blade and cut off the length of the torque driven by the cutter pad 00, reducing the possibility of pulling.

[0046] On the left and right ends of the side of the main board structure 01 close to the drive connection part 03, third mounting bosses 033 are provided. Non-penetrating third mounting grooves 034 are provided on the third mounting bosses 033. The third mounting grooves 034 are connected to the torsion springs of the drive components. The torsion springs are abutted in the third mounting grooves 034, so that the cutter pad 00 can approach the cutter head under the extrusion of the torsion springs.

[0047] The drive contact part 031 is provided with a positioning hole 035, which is required for manufacturing process positioning and does not affect the actual use of the drive contact part 031.

[0048] As Figure 1 、 Figure 3 As shown in the figure, the middle part of the drive contact part 031 protrudes and the two ends converge, so that the distance between the middle parts of the drive contact part 031 is smaller than the distance between the wing-like structures 032. The drive component includes a motor 04. The motor 04 is provided with an eccentric output rotating shaft 041 vertically upward. The output rotating shaft 041 is inserted between the wing-like structures 032 and clamped by the drive contact part 031. When the output rotating shaft 041 rotates, it drives the cutter pad 00 to move left and right through the drive contact part 031. The cutter pad 00 drives individual components of the shear component to move left and right through the shear connection part 02.

[0049] During actual use, the motor 04 for drive self-check is vertically arranged, and its output rotating shaft 041 is vertically upward in the direction towards the cutter pad 00. The lower part of the output rotating shaft 041 is connected to the center of the motor 04, but the upper part is a frustum-shaped pin shaft. This pin shaft is provided with an eccentric rotating shaft. After this eccentric rotating shaft extrudes the drive contact part 031 under the action of an external force and is inserted between the wing-like structures 032, and then the external force is withdrawn, the eccentric rotating shaft is extruded by the drive contact part 031, thereby realizing the interference fit with the drive contact part 031.

[0050] When the motor 04 rotates, it drives the output rotating shaft 041 to rotate. The eccentric rotating shaft on the upper part of the output rotating shaft 041 also rotates accordingly. However, since the motor 04 is fixed, the eccentric rotating shaft drives the driving contact part 031 to make a small-range circular motion. Due to being clamped by the driven contact part 031, the small-size circular motion is manifested as driving the tool pad 00 to move left and right, enabling the tool pad 00 to drive the blade of the tool head to move left and right.

[0051] In other embodiments, the eccentric rotating shaft can be changed to an eccentric wheel, as long as it is eccentrically arranged and can push the driving contact part 031 to move left and right. It doesn't matter what kind of eccentric structure it is.

[0052] An inner cavity groove 036 is hollowed out on the surface of the wing-shaped structure 032 close to the driving connection part 03.

[0053] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An inlaid electric clipper blade, characterized in that It includes a main board structure. Shearing connection parts and driving connection parts are respectively arranged on two side surfaces of the main board structure. The shearing connection part is connected to the shearing component of the electric hair clipper, and the driving connection part is connected to the driving component of the electric hair clipper. The driving connection part is provided with a concave structure, and a driving contact part is embedded at the concave structure, so that the driving contact part and the driving connection part form an integral body. The driving contact part is in contact connection with the driving component of the electric hair clipper. The parts except the driving contact part are integrally formed. The material of the driving contact part is different from that of other parts, and the material of the driving contact part is wear-resistant material.

2. The inlaid electric clipper blade pad according to claim 1, characterized in that The shearing connection part includes a plurality of first mounting bosses protruding from the main board structure. The inside of the first mounting boss is recessed to form a first mounting groove, and the first mounting groove is connected to the protruding structure of the shearing component.

3. The inlaid electric clipper blade holder according to claim 2, wherein, The cross-sectional shape of the first mounting groove is oblong.

4. The inlaid electric clipper blade holder according to claim 2, wherein Both ends of the first mounting boss are angular, and a plurality of mounting keys are symmetrically arranged in the middle.

5. The inlaid electric clipper blade cushion according to claim 2, wherein The shearing connection part includes second mounting bosses protruding from both sides of the main board structure. The inside of the second mounting boss is recessed to form a second mounting groove, and the second mounting groove is connected to the protruding structure of the shearing component. The cross-sectional shape of the second mounting groove is circular.

6. The inlaid electric clipper blade cushion according to claim 1, characterized in that Third mounting bosses are arranged at the left and right ends of the surface of the main board structure close to the driving connection part. Non-through third mounting grooves are arranged on the third mounting bosses, and the third mounting grooves are connected to the torsion springs of the driving component.

7. The inlaid electric clipper blade cushion according to claim 1, wherein The driving contact part is provided with positioning holes.

8. The inlaid electric hair clipper blade cushion according to claim 1, characterized in that, The middle of the driving contact part protrudes and the two ends converge, so that the distance between the middles of the driving contact part is smaller than the distance between the wing-shaped structures of the driving connection part.

9. The inlaid electric clipper blade according to claim 8, characterized in that The driving component includes a motor. The motor is provided with an eccentric output rotating shaft vertically upward. The output rotating shaft is inserted between the wing-shaped structures and clamped by the driving contact part. When the output rotating shaft rotates, it drives the knife pad to move left and right through the driving contact part, and the knife pad drives individual parts of the shearing component to move left and right through the shearing connection part.

10. The inlaid electric clipper blade holder according to claim 1, wherein, The wing-shaped structure of the driving connection part is hollowed out on the surface close to the driving connection part to form an inner cavity groove.

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