Electric hair clipper

Abstract

The present application relates to a kind of electric hair scissors, including body and cutter head, the end of body is equipped with the limiting frame for the installation of cutter head, cutter head is composed of fixed cutter and moving cutter, moving cutter is composed of first moving cutter combination and second moving cutter combination, first moving cutter combination has first blade, second moving cutter combination has second blade, first blade has sharp cutting surface, second blade has flat surface, when first blade and second blade are close to each other, the moment when sharp cutting surface and flat surface contact is in the state of cutting hair, reciprocating drive mechanism is provided on limiting frame, the present application is moved relatively between first blade and second blade and does not stagger, so that first blade and second blade contact, in the moment when the two contact, hair is cut between sharp cutting surface and flat surface, prevent hair from being caught to cause the situation that hair is pulled and produces pain, improve hairdressing effect.

Description

Technical Field

[0001] This invention relates to the field of hair styling tools, specifically to an electric hair clipper. Background Technology

[0002] Existing electric clippers, categorized by motor movement mode, whether horizontal or eccentric wheel rotary, all share the same basic principle for blade head design. They all use two blades, one above the other, moving in opposite directions close to each other to cut hair protruding from the blade gap. However, this technology often encounters the problem of hair getting stuck in the hair during actual use. This problem is very unfriendly to the person having their hair trimmed and will inevitably be accompanied by pain.

[0003] Due to material aging, the material at the hair-cutting end becomes blunt, greatly reducing its sharpness. The blade cannot cut the hair instantly upon contact, causing the hair to move a certain distance, resulting in the painful sensation of the hair being pulled. Currently, electric clipper blades are usually replaced by direct plugging and unplugging. This method may cause accidental injury during operation. Some electric clipper blades require considerable force to plug and unplug, requiring users to spend more time and effort. Furthermore, frequent plugging and unplugging can easily damage the blade or socket, affecting its lifespan.

[0004] In the prior art, for example, Chinese Patent (authorization announcement number CN103009407B) discloses a hair clipper with a detachable head, which includes a body and a head assembly detachably connected to the end of the body. The head assembly includes a head support with a cavity, a fixed blade fixedly connected to the head support and serving as the outer surface of the head assembly, a movable blade disposed in the cavity of the head support, and a moving member fixedly connected to the movable blade and driving the movable blade to reciprocate relative to the fixed blade. The fixed blade and the movable blade each have a toothed edge, and the toothed edge of the movable blade and the toothed edge of the fixed blade are in close contact to form a cutting surface. The head support has a strip block on each of its two opposite sides, and the two inner sides of the end of the body have a groove that matches the strip block. The strip block is inserted into the groove. The end of the body has an elastic locking block for locking the head assembly.

[0005] According to the aforementioned patent, the fixed and moving blades of this patent move by shearing. As the quality of the blades deteriorates, the effect becomes poor, resulting in a painful sensation of hair being pulled. The overall performance is unsatisfactory. When it is necessary to disassemble the blade head assembly, the blade head assembly moves along the groove of the body via a strip block, and the elastic locking block retracts, making it easy to disassemble the blade head assembly. However, if the tail of the blade head support is accidentally pushed during operation, causing the blade head to pop out, it may cause cuts or punctures. The stability is poor. Therefore, there is a need for a blade head assembly that cuts hair by colliding two sets of moving blades and can be stably disassembled. Summary of the Invention

[0006] To address the problems existing in the current technology, this invention provides an electric hair clipper. The invention uses a method in which the first blade and the second blade move relative to each other without intersecting, so that the first blade and the second blade come into contact. At the moment of contact, the hair is cut between the sharp cutting surface and the flat surface, preventing the hair from getting stuck and causing pain, thus improving the hair cutting effect.

[0007] To address the problems of existing technologies, this invention provides an electric hair clipper, comprising a body and a blade head. The end of the body is provided with a limiting frame for mounting the blade head. The blade head consists of a fixed blade and a moving blade. The fixed blade is fixedly connected to the limiting frame, and the moving blade is movably connected to the limiting frame. The moving blade consists of a first moving blade assembly and a second moving blade assembly. The first moving blade assembly has a first blade, and the second moving blade assembly has a second blade. The first and second blades are relatively movable on the surface of the fixed blade. Both sides of the first blade have sharp cutting surfaces, and both sides of the second blade have flat surfaces. When the first and second blades approach each other, the sharp cutting surfaces and flat surfaces are in contact at the moment of contact, which is the moment they cut the hair. The limiting frame is slidably equipped with blades that connect to the first moving blade assembly and the second moving blade assembly. The first and second transmission connectors are connected by a two-moving-blade assembly. The limit frame is equipped with a reciprocating drive mechanism for driving the first and second transmission connectors to move alternately. The first and second moving-blade assemblies are spaced apart, with a first blade and a second blade adjacent to each other. The first and second transmission connectors move alternately, thereby causing the first and second blades to move relative to each other until the sharp cutting surface of the first blade contacts the flat surface on the second blade, at which moment the hair is cut off. The first and second blades will not move above or below either the first or second blade.

[0008] Preferably, the reciprocating drive mechanism is provided with a quick-release connector for facilitating the assembly and disassembly of the first moving blade. The quick-release connector is provided with a support plate and a rotating clamp. The support plate is slidably mounted on the limit frame, and the surface of the support plate is parallel to the surface of the fixed blade. The rotating clamp is rotatably mounted on the support plate, and the support plate has a shaft connection for the rotating clamp to rotate. The rotation direction of the rotating clamp is perpendicular to the surface of the fixed blade. The rotating clamp has a slot, and the first transmission connector has a locking strip for inserting into the slot.

[0009] Preferably, the rotating clip has two baffles symmetrically arranged with its middle cross section as the symmetrical face to clamp the card strip between the two baffles.

[0010] Preferably, a limiting side plate extending outward parallel to its surface is fixed at the end of the support plate. The limiting side plate has an inclined support surface that gradually rises from the inside to the outside. The end of the first transmission connector has an inclined contact surface that fits with the inclined support surface. When the inclined contact surface fits with the inclined support surface, the first moving blade assembly is in a locked state.

[0011] Preferably, the surface of the support plate is provided with a first magnetic attraction part, and the inner surface of the rotating clamp is provided with a second magnetic attraction part corresponding to the first magnetic attraction part.

[0012] Preferably, a locking block is slidably provided on the limiting frame toward the direction of the rotating clamp, and a locking drive assembly is provided on the body to control the position of the locking block. The surface of the locking block is provided with a third magnetic attraction part, and the outer surface of the rotating clamp is provided with a fourth magnetic attraction part corresponding to the third magnetic attraction part. When the third magnetic attraction part and the fourth magnetic attraction part are attracted together, the rotating clamp is in a vertical state relative to the support plate.

[0013] Preferably, the locking drive assembly has a pair of insert rods, which are symmetrically arranged on both sides of the body and close to the locking block. Each insert rod is connected to a spring-loaded pressing member. The body has a first insertion hole and a second insertion hole arranged side by side along the moving direction of the locking block, which allow the insert rod to be inserted. When the insert rod is inserted into the first insertion hole, the locking block is in a state away from the rotating clamp. When the insert rod is inserted into the second insertion hole, the locking block is in a state close to the rotating clamp and in contact with it.

[0014] Preferably, the elastic pressing component is provided with a pressing rod and a guide sleeve. The guide sleeve is fixedly mounted on the locking block. The pressing rod extends into the body by passing through the body and the guide sleeve in sequence. The body has a guide opening for the pressing rod to move. The insertion rod is fixedly connected to the extension end of the pressing rod. A compression spring sleeved on the pressing rod is fixedly connected between the guide sleeve and the insertion rod. When the compression spring is in the normal state, the insertion rod is inserted into the first insertion hole or the second insertion hole.

[0015] Preferably, the reciprocating drive mechanism includes a drive gear, a first transmission rack, and a second transmission rack. The drive gear is meshed between the first transmission rack and the second transmission rack. The first transmission rack is fixedly connected to the support plate, and the second transmission rack is fixedly connected to the second transmission connector. A driven gear is also meshed between the first transmission rack and the second transmission rack.

[0016] Preferably, the reciprocating drive mechanism is provided with stator winding coils fixed on the limiting frame and located at both ends of the support plate and the second transmission connector. The two ends of the support plate are respectively provided with first permanent magnets that are paired with the corresponding stator winding coils, and the two ends of the second transmission connector are respectively provided with second permanent magnets that are paired with the corresponding stator winding coils.

[0017] The advantages of this application compared to the prior art are:

[0018] 1. The present invention achieves rapid hair cutting by moving the first blade and the second blade relative to each other without intersecting, so that the first blade and the second blade come into contact. At the moment of contact, the hair is cut between the sharp cutting surface and the flat surface, which prevents the hair from getting stuck and causing pain, thus improving the hair cutting effect.

[0019] 2. By replacing the first moving blade assembly by flipping it 90°, the present invention can reduce the risk of accidental injury. Compared with the direct plugging or popping method, it is more conducive to safe replacement. In addition, if the first moving blade assembly pops out or loosens due to accidental operation during use, it will cause injury. This invention reduces the risk of replacing the first moving blade assembly and ensures the safety of electric hair clippers during use. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of an electric hair clipper.

[0021] Figure 2 This is a partial three-dimensional structural cross-sectional view of an electric hair clipper.

[0022] Figure 3 A schematic diagram of the three-dimensional structure of an electric hair clipper after removing its main body. Figure 1 .

[0023] Figure 4 A schematic diagram of the three-dimensional structure of an electric hair clipper after removing its main body. Figure 2 .

[0024] Figure 5 This is a three-dimensional structural cross-sectional view of an electric hair clipper with the middle section of the main body removed.

[0025] Figure 6 This is a schematic diagram illustrating the hair-cutting principle of the relative movement between the first and second blades of an electric hair clipper.

[0026] Figure 7 This is a three-dimensional structural diagram of the first and second moving blade combinations of an electric hair clipper.

[0027] Figure 8 This is a three-dimensional structural schematic diagram of a reciprocating drive mechanism for an electric hair clipper, according to one embodiment.

[0028] Figure 9 This is a partial three-dimensional exploded view of an embodiment of the reciprocating drive mechanism of an electric hair clipper.

[0029] Figure 10 yes Figure 8 Enlarged diagram of point A.

[0030] Figure 11 This is a schematic diagram showing the rotating clip of an electric hair clipper in a position relative to the support plate from horizontal to vertical.

[0031] Figure 12 yes Figure 2 Enlarged diagram of point B.

[0032] Figure 13 This is a schematic diagram of the reciprocating drive mechanism of an electric hair clipper, according to Embodiment 2.

[0033] Figure 14 yes Figure 1 Enlarged diagram of point C.

[0034] The diagram is labeled as follows: 1. Main body; 11. Motor module; 111. Motor shaft; 12. Control button; 13. Battery module; 2. Limiting frame; 21. First transmission connector; 211. Clamping strip; 212. Inclined contact surface; 22. Second transmission connector; 3. Fixed blade; 4. Moving blade; 41. First moving blade assembly; 411. First blade; 4111. Sharp cutting surface; 42. Second moving blade assembly; 421. Second blade; 4211. Flat surface; 5. Reciprocating drive mechanism; 51. Drive gear; 511. First transmission rack; 5111. Driven gear; 512. Second transmission rack; 52. Stator winding coil; 521. First permanent magnet; 522. Second permanent magnet; 6. Quick-release connector; 61. Support plate; 611. Shaft connection; 612. First magnetic attraction part; 613. Second magnetic attraction part; 62. Rotary clamp; 621. Baffle; 63. Limiting side plate; 631. Inclined support surface; 7. Locking block; 71. Third magnetic attraction part; 72. Fourth magnetic attraction part; 8. Locking drive assembly; 81. Insert rod; 811. First insertion hole; 812. Second insertion hole; 82. Elastic pressing part; 821. Pressing rod; 8211. Guide port; 822. Guide sleeve; 8221. Compression spring. Detailed Implementation

[0035] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0036] See Figures 1-7 and Figure 14 As shown, an electric hair clipper includes a body 1 and a blade head. The end of the body 1 is provided with a limiting frame 2 for mounting the blade head. The blade head consists of a fixed blade 3 and a moving blade 4. The fixed blade 3 is fixedly connected to the limiting frame 2, and the moving blade 4 is movably connected to the limiting frame 2. The moving blade 4 consists of a first moving blade assembly 41 and a second moving blade assembly 42. The first moving blade assembly 41 has a first blade 411, and the second moving blade assembly 42 has a second blade 421. The first blade 411 and the second blade 421 are relatively movable on the surface of the fixed blade 3. Both sides of the first blade 411 have... The first blade 4111 has a sharp cutting surface 4111, and the second blade 421 has flat surfaces 4211 on both sides. When the first blade 411 and the second blade 421 approach each other, the sharp cutting surface 4111 and the flat surface 4211 are in the state of cutting hair at the moment of contact. The limiting frame 2 is provided with a first transmission connector 21 and a second transmission connector 22 that are connected to the first moving blade assembly 41 and the second moving blade assembly 42 respectively. The limiting frame 2 is provided with a reciprocating drive mechanism 5 for driving the first transmission connector 21 and the second transmission connector 22 to move alternately.

[0037] The first blade 411 and the second blade 421 on the first moving blade assembly 41 and the second moving blade assembly 42 are each provided with a plurality of first blades 411 and second blades 421 respectively. There is a second blade 421 between every two adjacent first blades 411. The fixed blade 3 has a gap for hair to enter the area of ​​the moving blade 4. The surface of the body 1 is provided with a control button 12 for controlling the reciprocating drive mechanism 5. The interior of the body 1 is provided with a battery module 13 for providing power to the reciprocating drive mechanism 5.

[0038] When the user operates the electric hair clippers, the reciprocating drive mechanism 5 is activated via control button 12. The reciprocating drive mechanism 5 then drives the moving blade 4 to work. The user inserts the fixed blade 3 into the hair, and the hair passes through the gap into the area of ​​the moving blade 4. The moving blade 4 performs a horizontal reciprocating motion relative to the fixed blade 3. The first moving blade assembly 41 and the second moving blade assembly 42 are spaced apart, with a first blade 411 adjacent to a second blade 421. As the first transmission connector 21 and the second transmission connector 22 are driven by the reciprocating drive mechanism 5, the first... The transmission connector 21 and the second transmission connector 22 reciprocate and alternately move, thereby causing the first blade 411 and the second blade 421 to move relative to each other until the sharp cutting surface 4111 of the first blade 411 contacts the flat surface 4211 on the second blade 421, at which moment the hair is cut off. The first blade 411 and the second blade 421 will not move above or below either the first blade 411 or the second blade 421. Therefore, even if the hair cannot be cut off, there will be no problem of hair getting stuck.

[0039] See Figures 2-11 As shown, the reciprocating drive mechanism 5 is provided with a quick-release connector 6 for easy disassembly of the first moving blade assembly 41. The quick-release connector 6 is provided with a support plate 61 and a rotating clamp 62. The support plate 61 is slidably mounted on the limit frame 2. The surface of the support plate 61 is parallel to the surface of the fixed blade 3. The rotating clamp 62 is rotatably mounted on the support plate 61. The support plate 61 has a shaft connection part 611 for the rotating clamp 62 to rotate. The rotation direction of the rotating clamp 62 is perpendicular to the surface of the fixed blade 3. The rotating clamp 62 has a slot. The first transmission connector 21 has a locking strip 211 for inserting into the slot.

[0040] Because the hair is cut by the collision between the first blade 411 and the second blade 421, the sharp cutting surface 4111 on the first blade 411 will curl after long-term use, thus affecting the haircutting effect. Therefore, the first moving blade assembly 41 needs to be replaced. Traditional methods of replacing the blade head by inserting and removing it, or automatic ejection, are unstable and can easily cause cuts or punctures during use. Therefore, by connecting the first transmission connector 21 connected to the first moving blade assembly 41 to the rotating clamp 62 in a snap-fit ​​manner, the locking strip 211 on the first transmission connector 21 is aligned with the locking slot on the rotating clamp 62 and inserted. During the connection process, the rotating clamp 62 is rotated upwards 90° relative to the support plate 61, so that the rotating clamp 62 remains in a vertical position. Then, the locking strip 211 is inserted... Insert the first transmission connector 21 into the slot. At this time, the first transmission connector 21 and the rotating clamp 62 are still in an active state. As the rotating clamp 62, along with the first transmission connector 21, is rotated downward by 90°, keeping the rotating clamp 62 parallel to the support plate 61, the first transmission connector 21 and the support plate 61 are positioned. The first moving blade assembly 41 and the second moving blade assembly 42 are then installed at intervals. Compared with the method of directly pulling out or popping out the first moving blade assembly 41, the method of rotating 90° for replacement can reduce the risk of accidental injury. In the method of directly inserting, pulling out or popping out, because the first moving blade assembly 41 is very sharp and requires a lot of force, the operator may be injured. The method of rotating 90° for replacement allows the first moving blade assembly 41 to be replaced in a safer manner.

[0041] See Figure 9 and Figure 10 As shown, the rotating clip 62 has two baffles 621 symmetrically arranged with its middle cross section as the symmetry plane, which are used to clamp the clip 211 between the two.

[0042] The two baffles 621 provide a lateral limit for the card strip 211 in the left and right directions, preventing the card strip 211 from sliding out of the slot of the rotating clip 62 laterally.

[0043] See Figures 9-11 As shown, a limiting side plate 63 extending outward parallel to its surface is fixed at the end of the support plate 61. The limiting side plate 63 has an inclined support surface 631 that gradually rises from the inside to the outside. The end of the first transmission connector 21 has an inclined contact surface 212 that fits with the inclined support surface 631. When the inclined contact surface 212 fits with the inclined support surface 631, the first moving blade assembly 41 is in a locked state.

[0044] When the rotating clamp 62 is perpendicular to the support plate 61, the first moving blade assembly 41 and the rotating clamp 62 are still in a movable state. The inclined contact surface 212 on the first transmission connector 21 connected to the first moving blade assembly 41 is far away from the inclined support surface 631 on the limiting side plate 63. As the rotating clamp 62 gradually flips towards the support plate 61, the inclined contact surface 212 on the first transmission connector 21 also gradually approaches the inclined support surface 631 on the limiting side plate 63. Until the rotating clamp 62 is parallel to the support plate 61, the inclined contact surface 212 and the inclined support surface 631 are fully engaged. Because the inclined support surface 631 on the limiting side plate 63 blocks the inclined contact surface 212 on the first transmission connector 21, the first transmission connector 21 cannot be pulled out from the rotating clamp 62 in a horizontal state. This restricts the movement of the first transmission connector 21 in the front and back directions, avoids the first moving blade assembly 41 from disengaging during use, and ensures stability.

[0045] See Figure 10 and Figure 11 As shown, the surface of the support plate 61 is provided with a first magnetic attraction part 612, and the inner surface of the rotating clamp 62 is provided with a second magnetic attraction part 613 corresponding to the first magnetic attraction part 612.

[0046] When the rotating clip 62 and the support plate 61 are kept in a horizontal state, the first magnetic part 612 and the second magnetic part 613 are attracted to each other, so that the rotating clip 62 and the support plate 61 are fixed together, preventing the rotating clip 62 from jumping up and down during the use of the electric hair clipper.

[0047] See Figure 2 , Figure 3 and Figure 11 As shown, a locking block 7 is slidably provided on the limiting frame 2 toward the rotating clamp 62. The main body 1 is provided with a locking drive assembly 8 for controlling the position of the locking block 7. The surface of the locking block 7 is provided with a third magnetic attraction part 71. The outer surface of the rotating clamp 62 is provided with a fourth magnetic attraction part 72 corresponding to the third magnetic attraction part 71. When the third magnetic attraction part 71 and the fourth magnetic attraction part 72 are attracted together, the rotating clamp 62 is in a vertical state relative to the support plate 61.

[0048] When the locking block 7 is in a position away from the rotating clamp 62, the rotating clamp 62 can rotate relative to the locking block 7 until it rotates 90° and then engages with the locking block 7. The third magnetic attraction part 71 and the fourth magnetic attraction part 72 also attract each other. At this time, the first transmission connector 21 moves away from the limiting side plate 63, releasing the limiting effect on the first transmission connector 21, allowing it to be removed. The rotating clamp 62 remains perpendicular to the support plate 61, facilitating the replacement of the first moving blade assembly 41. After replacing the first moving blade assembly 41, the rotating clamp 62 is flipped downwards by 90°. The user applies a little force to overcome the attraction between the third magnetic part 71 and the fourth magnetic part 72 until the first magnetic part 612 and the second magnetic part 613 are attracted together, thus completing the positioning and installation of the first moving blade assembly 41. At this time, the locking block 7 is driven to approach the rotating clamp 62 by the locking drive assembly 8 until the locking block 7 contacts the rotating clamp 62. The locking block 7 restricts the rotation of the rotating clamp 62, ensuring that the first moving blade assembly 41 is stable and does not jump.

[0049] See Figure 5 , Figure 11 and Figure 12 As shown, the locking drive assembly 8 is provided with a pair of insertion rods 81. The pair of insertion rods 81 are symmetrically arranged on both sides of the body 1 and close to the locking block 7. Each insertion rod 81 is connected to the locking block 7 with an elastic pressing member 82. The body 1 is provided with a first insertion hole 811 and a second insertion hole 812 arranged side by side along the moving direction of the locking block 7, in which the insertion rod 81 can be inserted. When the insertion rod 81 is inserted into the first insertion hole 811, the locking block 7 is in a state away from the rotating clamp 62. When the insertion rod 81 is inserted into the second insertion hole 812, the locking block 7 is in a state close to the rotating clamp 62 and in contact with it.

[0050] When the locking drive assembly 8 is operated by the user, the user pinches the two elastic pressing members 82 with two fingers and applies a little force to make the insertion rod 81 disengage from the first insertion hole 811. Then, while maintaining this state, the user pulls the locking block 7 until the locking block 7 contacts the rotating clip 62. After that, the user releases the elastic pressing member 82. Under the restoring effect of the elastic pressing member 82, the insertion rod 81 is inserted into the second insertion hole 812, completing the further positioning of the rotating clip 62. When replacing the first moving blade assembly 41, the above operation is repeated to push the insertion rod 81 out of the second insertion hole 812, pull the locking block 7 away from the rotating clip 62 until it moves into place, and then release it to allow the insertion rod 81 to be inserted into the first insertion hole 811, thereby disassembling the first moving blade assembly 41.

[0051] See Figure 5 and Figure 12As shown, the elastic pressing member 82 is provided with a pressing rod 821 and a guide sleeve 822. The guide sleeve 822 is fixedly mounted on the locking block 7. The pressing rod 821 extends into the body 1 through the body 1 and the guide sleeve 822 in sequence. The body 1 is provided with a guide opening 8211 for the pressing rod 821 to move. The insertion rod 81 is fixedly connected to the extension end of the pressing rod 821. A compression spring 8221 sleeved on the pressing rod 821 is fixedly connected between the guide sleeve 822 and the insertion rod 81. When the compression spring 8221 is in the normal state, the insertion rod 81 is in the state of being inserted into the first insertion hole 811 or the second insertion hole 812.

[0052] When the user presses the elastic pressing member 82, the pressing rod 821 is pressed into the body 1. At this time, the compression spring 8221 is in a stretched state, and the insertion rod 81 is also pushed out of the first insertion hole 811 or the second insertion hole 812. Until the pressing rod 821 is released, the compression spring 8221 returns to its normal state, and the insertion rod 81 is reinserted into the first insertion hole 811 or the second insertion hole 812. This makes operation convenient and reduces the likelihood of misoperation during the use of electric hair clippers.

[0053] See Figure 4 , Figure 5 , Figure 7 , Figure 8 and Figure 9 As shown, the reciprocating drive mechanism 5 is provided with a drive gear 51, a first transmission rack 511 and a second transmission rack 512. The drive gear 51 is meshed between the first transmission rack 511 and the second transmission rack 512. The first transmission rack 511 is fixedly connected to the support plate 61, and the second transmission rack 512 is fixedly connected to the second transmission connector 22. A driven gear 5111 is also meshed between the first transmission rack 511 and the second transmission rack 512.

[0054] When the reciprocating drive mechanism 5 drives the support plate 61 and the second transmission connector 22 to move alternately, causing relative movement between the first blade 411 and the second blade 421, the motor module 11 outputs power by reciprocating a certain angle of rotation. For example, within one motion cycle, the motor shaft 111 completes a positive 5-degree rotation + a negative 5-degree rotation. The reciprocating rotation output by the motor shaft 111 will be transmitted to the drive gear 51. When the drive gear 51 moves clockwise by a certain angle, the upper first transmission rack 511 will move to the right, and the lower second transmission rack 512 will move to the left. Due to the first moving blade assembly 4 The first blade 411 and the second blade 421 are arranged at intervals. At this time, each first blade 411 in the first blade assembly 41 and each second blade 421 in the second blade assembly 42 will move towards each other. Adjacent first blades 411 and second blades 421 will cut the hair. The first transmission rack 511 and the second transmission rack 512 can contact the limit frame 2 by tight fit and grease. Alternatively, a linear bearing can be installed between the two surfaces of the limit frame 2 and the transmission rack to connect them. The driven gear 5111 is used to better and more stably maintain the movement of its first transmission rack 511 and second transmission rack 512.

[0055] See Figure 8 , Figure 9 and Figure 13 As shown, the reciprocating drive mechanism 5 is provided with stator winding coils 52 fixed on the limit frame 2 and located at both ends of the support plate 61 and the second transmission connector 22. The two ends of the support plate 61 are respectively provided with first permanent magnets 521 that are paired with the corresponding stator winding coils 52, and the two ends of the second transmission connector 22 are respectively provided with second permanent magnets 522 that are paired with the corresponding stator winding coils 52.

[0056] When the reciprocating drive mechanism 5 drives the support plate 61 and the second transmission connector 22 to move alternately, causing relative movement between the first blade 411 and the second blade 421, the stator winding coil 52 is energized, causing it to generate a... Figure 13The magnetic field of the magnetic poles shown indicates that the first permanent magnet 521 or the second permanent magnet 522 will be attracted or repelled by the magnetic field. According to the principle of like poles repelling and unlike poles attracting, when the first permanent magnet 521 is attracted by the magnetic field, the second permanent magnet 522 is repelled, thereby causing the support plate 61 or the second transmission connector 22 to move. Then, the direction of the current flowing through the stator winding coils 52 on both sides is changed. When the support plate 61 moves to one side, the second transmission connector 22 moves to the other side. By setting the frequency of the change in the direction of the current flowing through the stator winding coils 52, the reciprocating lateral movement of the first moving blade assembly 41 and the second moving blade assembly 42 can be completed. Since the first moving blade assembly 41 and the second moving blade assembly 42 are arranged alternately, each first blade 411 in the first moving blade assembly 41 and each second blade 421 in the second moving blade assembly 42 will move towards each other. The adjacent first blade 411 and second blade 421 will cut the hair.

[0057] The present invention achieves this by moving the first blade 411 and the second blade 421 relative to each other without intersecting, so that the first blade 411 and the second blade 421 come into contact. At the moment of contact, the hair is cut between the sharp cutting surface 4111 and the flat surface 4211, preventing the hair from getting stuck and causing pain, thus improving the haircutting effect.

[0058] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. An electric hair clipper, comprising a body (1) and a blade; The end of the body (1) is provided with a limiting bracket (2) for mounting the cutter head; The cutter head consists of a fixed cutter (3) and a moving cutter (4). The fixed cutter (3) is fixedly connected to the limit frame (2), and the moving cutter (4) is movably connected to the limit frame (2). Its features are, The moving blade (4) consists of a first moving blade assembly (41) and a second moving blade assembly (42). The first moving blade assembly (41) has a first blade (411), and the second moving blade assembly (42) has a second blade (421). The first blade (411) and the second blade (421) are arranged relative to each other on the surface of the fixed blade (3). The first blade (411) has sharp cutting surfaces (4111) on both sides, and the second blade (421) has flat surfaces (4211) on both sides. When the first blade (411) and the second blade (421) approach each other, the sharp cutting surfaces (4111) and the flat surfaces (4211) are in the state of cutting hair at the moment of contact. The limit frame (2) is provided with a first transmission connector (21) and a second transmission connector (22) that are connected to the first moving blade assembly (41) and the second moving blade assembly (42). The limit frame (2) is provided with a reciprocating drive mechanism (5) for driving the first transmission connector (21) and the second transmission connector (22) to move alternately. The first moving blade assembly (41) and the second moving blade assembly (42) are spaced apart, with a first blade (411) adjacent to a second blade (421); The first transmission connector (21) and the second transmission connector (22) reciprocate and alternately move, thereby causing the first blade (411) and the second blade (421) to move relative to each other until the sharp cutting surface (4111) of the first blade (411) comes into contact with the flat surface (4211) on the second blade (421), at which moment the hair is cut off. The first blade (411) and the second blade (421) will not move above or below either the first blade (411) or the second blade (421).

2. The electric hair clipper according to claim 1, characterized in that, The reciprocating drive mechanism (5) is provided with a quick-release connector (6) for easy disassembly of the first moving blade assembly (41). The quick-release connector (6) is provided with a support plate (61) and a rotating clamp (62). The support plate (61) is slidably mounted on the limit frame (2), and the surface of the support plate (61) is parallel to the surface of the fixed blade (3); The rotating clamp (62) is rotatably mounted on the support plate (61). The support plate (61) has a shaft connection (611) for the rotating clamp (62) to rotate. The rotation direction of the rotating clamp (62) is perpendicular to the surface of the fixed knife (3). The rotating clamp (62) has a slot. The first transmission connector (21) has a clip (211) for inserting into the slot.

3. The electric hair clipper according to claim 2, characterized in that, The rotating clamp (62) has two baffles (621) symmetrically arranged with its middle section as the symmetry plane to clamp the card strip (211) between the two.

4. The electric hair clipper according to claim 2, characterized in that, The end of the support plate (61) is fixed with a limiting side plate (63) that extends outward parallel to its surface. The limiting side plate (63) has an inclined support surface (631) that gradually rises from the inside to the outside. The end of the first transmission connector (21) has an inclined contact surface (212) that fits with the inclined support surface (631). When the inclined contact surface (212) fits with the inclined support surface (631), the first moving knife assembly (41) is in a locked state.

5. An electric hair clipper according to claim 2, characterized in that, The surface of the support plate (61) is provided with a first magnetic attraction part (612), and the inner surface of the rotating clamp (62) is provided with a second magnetic attraction part (613) corresponding to the first magnetic attraction part (612).

6. The electric hair clipper according to claim 2, characterized in that, A locking block (7) is provided on the limiting frame (2) in the direction of the rotating clamp (62). The main body (1) is provided with a locking drive assembly (8) for controlling the position of the locking block (7). The surface of the locking block (7) is provided with a third magnetic attraction part (71). The outer surface of the rotating clamp (62) is provided with a fourth magnetic attraction part (72) corresponding to the third magnetic attraction part (71). When the third magnetic attraction part (71) and the fourth magnetic attraction part (72) are attracted together, the rotating clamp (62) is in a vertical state relative to the support plate (61).

7. An electric hair clipper according to claim 6, characterized in that, The locking drive assembly (8) is provided with a pair of insert rods (81). The pair of insert rods (81) are symmetrically arranged on both sides of the body (1) and close to the locking block (7). Each insert rod (81) is connected to the locking block (7) by an elastic pressing member (82). The body (1) is provided with a first insertion hole (811) and a second insertion hole (812) arranged side by side along the moving direction of the locking block (7) so that the insert rod (81) can be inserted therein. When the insert rod (81) is inserted into the first insertion hole (811), the locking block (7) is in a state away from the rotating clamp (62). When the insert rod (81) is inserted into the second insertion hole (812), the locking block (7) is in a state close to the rotating clamp (62) and in contact with it.

8. An electric hair clipper according to claim 7, characterized in that, The elastic pressing component (82) is provided with a pressing rod (821) and a guide sleeve (822). The guide sleeve (822) is fixedly mounted on the locking block (7). The pressing rod (821) passes through the body (1) and the guide sleeve (822) in sequence and extends into the body (1). The body (1) is provided with a guide opening (8211) for the pressing rod (821) to move. The insertion rod (81) is fixedly connected to the extension end of the pressing rod (821). A compression spring (8221) sleeved on the pressing rod (821) is fixedly connected between the guide sleeve (822) and the insertion rod (81). When the compression spring (8221) is in the normal state, the insertion rod (81) is in the state of being inserted into the first insertion hole (811) or the second insertion hole (812).

9. An electric hair clipper according to claim 2, characterized in that, The reciprocating drive mechanism (5) is provided with a drive gear (51), a first transmission rack (511), and a second transmission rack (512). The drive gear (51) is meshed between the first transmission rack (511) and the second transmission rack (512); The first transmission rack (511) is fixedly connected to the support plate (61); The second transmission rack (512) is fixedly connected to the second transmission connector (22); A driven gear (5111) is also meshed between the first transmission rack (511) and the second transmission rack (512).

10. An electric hair clipper according to claim 9, characterized in that, The reciprocating drive mechanism (5) is provided with stator winding coils (52) fixed on the limit frame (2) and located at both ends of the support plate (61) and the second transmission connector (22). The two ends of the support plate (61) are respectively provided with first permanent magnets (521) paired with the corresponding stator winding coils (52), and the two ends of the second transmission connector (22) are respectively provided with second permanent magnets (522) paired with the corresponding stator winding coils (52).

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