CN217195473U

CN217195473U - Electric hair trimming knife

Info

Publication number: CN217195473U
Application number: CN202122165872.1U
Authority: CN
Inventors: 龚震; 谭小琳; 陈坤伟; 潘卫侯
Original assignee: Shenzhen Sunray Technology Co ltd
Current assignee: Shenzhen Sunray Technology Co ltd
Priority date: 2021-09-08
Filing date: 2021-09-08
Publication date: 2022-08-16
Anticipated expiration: 2031-09-08

Abstract

The utility model discloses an electronic hair clipper, it is including repairing hair clipper body and setting up in the blade mechanism of the head of repairing hair clipper body, be provided with transfer line, gear mechanism and motor in repairing hair clipper body, motor drive gear mechanism action makes transfer line reciprocating motion control blade mechanism prune hair, the middle part of repairing hair clipper body is thicker than both ends, and the head of repairing hair clipper body sets up to the lopsidedness of repairing hair clipper body, the afterbody of repairing hair clipper body is crooked to the opposite side of repairing hair clipper body, adopts the mode of electronic pruning, is difficult for cutting wound user's skin to it is thick in the middle of repairing hair clipper body adopts, and the head is convenient for control and pruning operation when pruning operation.

Description

Electric hair trimming knife

Technical Field

The utility model relates to a beauty apparatus, in particular to an electric hair cutter.

Background

With the development of economy, the living standard of people is continuously improved, people pay more and more attention to dressing and beautifying, the shape of eyebrows can increase beautiful style for the face of women, and eyebrows need to be frequently trimmed in order to obtain a pair of beautiful and tidy eyebrows. Currently, eyebrow trimming is mainly performed with a brow-trimming knife, but due to manual operation, the skin of the eyes is easily cut if the operation is unskilled. Most of the eyebrow trimming knives are in a straight line mode, are not easy to hold during trimming, and are inconvenient to use due to different eyebrow shapes and different nose bridge heights of everyone.

Thus, the prior art has yet to be improved and enhanced.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned deficiencies of the prior art, an object of the present invention is to provide an electric hair trimmer which is convenient for trimming.

For solving the technical problem, the utility model discloses following technical scheme has been taken:

an electric hair trimmer comprises a hair trimmer body and a blade mechanism arranged at the head of the hair trimmer body, wherein a transmission rod, a gear mechanism and a motor are arranged in the hair trimmer body, the motor drives the gear mechanism to act so that the transmission rod reciprocates to control the blade mechanism to trim hair, the middle of the hair trimmer body is thicker than two ends of the hair trimmer body, the head of the hair trimmer body is obliquely arranged towards one side of the hair trimmer body, and the tail of the hair trimmer body is bent towards the other side of the hair trimmer body.

As the utility model discloses an improvement, still be provided with control mainboard and control motor operating condition's toggle switch in the hair repairing sword body, toggle switch is connected with the control mainboard electricity, be provided with the control button that is used for controlling toggle switch's on-state on the hair repairing sword body.

As a further improvement, the electric hair clipper also comprises a protective cover, when the protective cover covers the hair clipper body, the protective cover and the toggle switch butt prevent the control button from being triggered by mistake.

As a further improvement, the hair repairing knife body is provided with a convex card, and the protective cover is correspondingly provided with a clamping groove matched with the convex card.

As a further improvement, the inner side surface of the control button is provided with a groove matched with the movable contact of the toggle switch.

As a further improvement of the present invention, the blade mechanism comprises a stationary blade, a movable blade and an elastic sheet for tightly attaching the stationary blade to the movable blade, the movable blade is clamped between the stationary blade and the elastic sheet, one end of the movable blade is connected with one end of the transmission rod, and the other end of the transmission rod is connected with the gear mechanism; the gear mechanism comprises a gear, a fluted disc and a fixed shaft, the gear is coaxially connected with an output shaft of the motor and is meshed with the fluted disc, one side of the gear is arranged in the hair repairing cutter body through the fixed shaft, an eccentric shaft is arranged on the other side of the gear, and the other end of the transmission rod is sleeved on the eccentric shaft.

As a further improvement, the control mainboard is provided with motor protection circuit, motor protection circuit includes first resistance, first diode and first electric capacity, the one end of motor is through the 5 th foot of first resistance connection toggle switch, the 6 th foot and the negative pole of first diode, the other end of motor, the anodal ground connection of first diode, first electric capacity is parallelly connected with the both ends of first diode.

As the utility model discloses still further improvement, be provided with charge protection and indicating circuit on the control mainboard, charge protection and indicating circuit include the protection chip that charges, charge interface, second resistance, third resistance, fourth resistance, first LED lamp, second LED lamp and second electric capacity, the GHRG foot of protection chip that charges passes through the negative pole of the first LED lamp of third resistance connection, the positive pole of the interface that charges is connected to the positive pole of first LED lamp, and the one end of battery holder and toggle switch's 2 nd foot and 4 th foot are connected to the BAT foot of protection chip that charges, the CHRGT foot of protection chip that charges passes through the negative pole of fourth resistance connection second LED lamp, the positive pole of the interface that charges is connected to the positive pole of second LED lamp, and the PROG foot of protection chip that charges passes through second resistance ground connection.

Furthermore, a battery protection circuit is arranged on the control mainboard and comprises a battery protection chip, a fifth resistor and a third capacitor, the VM pin of the battery protection chip is grounded, the VDD end of the battery protection chip is connected with the other end of the battery holder and is also connected with the GND pin of the battery protection chip and one end of the fifth resistor through the third capacitor, and the other end of the fifth resistor is connected with one end of the battery holder and the BAT pin of the charging protection chip.

Further, the bending part of the shaving cutter body on the side of the blade mechanism is higher than the bending part on the opposite side.

Compared with the prior art, the utility model provides an electronic hair clipper includes the hair clipper body and sets up in the blade mechanism of the head of hair clipper body, be provided with transfer line, gear mechanism and motor in the hair clipper body, motor drive gear mechanism moves and makes transfer line reciprocating motion control blade mechanism prune hair, the middle part of hair clipper body is thicker than both ends, and the head of hair clipper body sets up to the lopsidedness of hair clipper body, the afterbody of hair clipper body is crooked to the opposite side of hair clipper body, adopts the mode of electronic pruning, is difficult for wounding user's skin to thick in the middle of hair clipper body adopts, the head is to the mode that the lopsidedness set up, is convenient for control and pruning operation when pruning the operation.

Drawings

Fig. 1 is a schematic view of the three-dimensional structure of the electric hair trimmer provided by the utility model.

Fig. 2 is a schematic view of a three-dimensional structure of an angle of the electric shaver body.

Fig. 3 is a schematic view of a three-dimensional structure of the electric shaver body at another angle.

Fig. 4 is a side view of the electric hair trimmer body.

Fig. 5 is an exploded view of the electric shaver provided by the present invention.

Fig. 6 is a circuit schematic diagram of the electric hair cutter provided by the utility model.

Reference is made to the accompanying drawings in which:

trimming knife body 1, blade mechanism 2, transmission rod 3, gear mechanism 4, motor 5, control main board 6, toggle switch KW1, control knob 11, protection cover 7, snap 12, snap groove 71, taper 72, stationary blade 21, movable blade 22, elastic blade 23, gear 41, toothed disc 42, eccentric shaft 43, motor protection circuit 61, first resistor R1, first capacitor D1, charging protection circuit 62, charging protection chip U1, charging protection chip J1, second resistor R2, third resistor R3, fourth resistor R4, first LED lamp D2, second LED lamp D3, second capacitor C2, battery protection circuit 63, battery protection chip U2, fifth resistor R5, third capacitor C3, upper shell 13, lower shell 14, battery BAT1

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "on," "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

It should be noted that the terms of orientation such as left, right, up and down in the embodiments of the present invention are only relative to each other or are referred to the normal use state of the product, and should not be considered as limiting.

Please refer to fig. 1, fig. 2 and fig. 3, the utility model provides an electric hair clipper, including hair clipper body 1 and the blade mechanism 2 who sets up in the head of hair clipper body 1, be provided with transfer line 3, gear mechanism 4 and motor 5 in the hair clipper body 1, motor 5 drives 4 actions of gear mechanism and makes 3 reciprocating motion control blade mechanism 2 of transfer line prune hair, adopts the mode of electric pruning, is difficult for wounding user's skin, uses safe and reliable.

The trimming knife is characterized in that the trimming knife body 1 is lengthened and slightly bent integrally, the bent part is matched with a hand of a user, the middle of the trimming knife body 1 is thicker than two ends, the head of the trimming knife body 1 is inclined towards one side of the trimming knife body 1, the tail of the trimming knife body 1 is bent towards the other side of the trimming knife body 1, the trimming knife body 1 adopts a mode that the middle is thick, and the head is inclined towards one side, so that the trimming knife is convenient to hold and trim during trimming operation, and when the trimming knife is used for trimming eyebrows, the trimming knife can be convenient for user operation and use with different eyebrow shapes and different nose bridge heights. Certainly, the electric hair cutter can also be used for cutting hair at other parts, and the utility model does not limit the hair.

Please continue to refer to fig. 1 to fig. 3, still be provided with the toggle switch KW1 of controlling mainboard 6 and control motor 5 operating condition in the hair clipper body 1, toggle switch KW1 is connected with the control mainboard 6 electricity, be provided with the control button 11 that is used for controlling toggle switch KW 1's on-state on the hair clipper body 1, through the closed or disconnection of control button 11 control toggle switch KW1, the work of corresponding control blade mechanism 2 or stop.

A groove (not numbered in the figure) matched with a movable contact of the toggle switch KW1 is arranged on the inner side surface of the control button 11, the movable contact is smoothly toggled when the control button 11 is pushed, and the toggle switch KW1 is controlled to be in a conducting or disconnecting state.

Referring to fig. 4, optionally, the electric hair clipper of the present invention further includes a protective cover 7, when the protective cover 7 is covered with the hair clipper body 1, the protective cover 7 is abutted to the toggle switch KW1 to prevent the control button 11 from being triggered by mistake, so as to prevent the control button from being triggered by mistake during transportation or carrying, and save the electric quantity of the battery, and the protective cover 7 can be used for preventing dust and preventing the blade mechanism 2 from being cut by contacting with an external object (such as clothes, bags, etc.).

Preferably, the shaver body 1 is provided with a clamping protrusion 12, the protective cover 7 is correspondingly provided with a clamping groove 71 matched with the clamping protrusion 12, the protective cover 7 is prevented from falling off by locking the clamping groove 71 and the clamping protrusion 12, the abutting position of the bottom edge of the protective cover 7 and the top edge of the control button 11 is limited to be the switching-off position of the toggle switch KW1, and the function of preventing false triggering is further ensured.

In other embodiments, the protective cover 7 and the shaver body 1 may also be in interference fit, so that the bottom edge of the protective cover abuts against the top edge of the control button 11 to prevent the toggle switch KW1 from being triggered by mistake.

Referring to fig. 1-4, the curved portion a of the shaver body 1 on the side of the blade mechanism 2 is higher than the curved portion B on the opposite side, so that the shaver body 1 is in the shape of a lark. Preferably, the protective cover 7 is correspondingly provided with a taper portion 72 simulating a beak, so that the beak is in the shape of a lark head. The bending part A is the chest of the lark, and the bending part A is the back of the lark.

Preferably, the mouth of the protection cover 7 has an inclined opening for fool-proofing, preventing the cover from being mistakenly opened, and ensuring that the locking protrusion 12 can be smoothly locked into the locking groove 71 when the box is covered.

Referring to fig. 5, the gear 41 mechanism 4 includes a gear 41, a fluted disc 42 and a fixed shaft 43, the gear 41 is coaxially coupled with the output shaft of the motor 5, the gear 41 is engaged with the fluted disc 42, one side of the gear 41 is disposed in the hair-cutting knife body 1 through the fixed shaft 43, the other side of the gear 41 is disposed with an eccentric shaft 44, and the other end of the transmission rod 3 is sleeved on the eccentric shaft 44.

The gear 41 is a driving gear 41, the teeth of the toothed disc 42 are located on the top surface of the toothed disc 42, the fixing shaft 43 is a stainless shaft, and provides a rotation space for the toothed disc 42, so that even if a certain gap is formed between the bottom surface of the toothed disc 42 and the inner wall of the main body 1 of the hair repairing cutter, the inner wall of the main body 1 of the hair repairing cutter cannot rub when the toothed disc 42 rotates, and the toothed disc 42 is ensured to rotate smoothly.

The hair trimming cutter body 1 is internally provided with a battery, the motor 5 is powered by the battery, when a toggle switch KW1 is turned on, the motor 5 is electrified to start rotating, the gear 41 rotates to rotate the fluted disc 42, and the transmission rod 3 reciprocates to make linear motion (namely make linear motion back and forth) under the action of the eccentric shaft 44.

The blade mechanism 2 comprises a static blade 21, a movable blade 22 and an elastic sheet 23 which enables the static blade 21 and the movable blade 22 to be attached tightly, the movable blade 22 is clamped between the static blade 21 and the elastic sheet 23, one end of the movable blade 22 is connected with one end of the transmission rod 3, and the other end of the transmission rod 3 is connected with the gear 41 mechanism 4.

When in trimming, the driving rod 3 reciprocates linearly to drive the movable blade 22 to synchronously reciprocate linearly relative to the fixed blade 21, and the elastic force of the elastic sheet 23 is tightly combined with the movable blade 22 and the fixed blade 21, so that the hair trimming effect is better.

Referring to fig. 6, a motor protection circuit 61 is disposed on the control main board 6, the motor protection circuit 61 includes a first resistor R1, a first diode D1 and a first capacitor C1, one end of the motor 5 is connected to the pin 5 and the pin 6 of the toggle switch KW1 through the first resistor R1 and the cathode of the first diode D1, the other end of the motor 5 and the anode of the first diode D1 are grounded, and the first capacitor C1 is connected in parallel to two ends of the first diode D1.

In this embodiment, the first capacitor C1 is a filter capacitor, so as to prevent the motor 5 from being damaged due to the excessive voltage applied to the motor 5. The first diode D1 is a fast turn-on diode to increase the operation speed of the motor 5, and the first resistor R1 is a current-limiting resistor.

The control mainboard 6 is provided with a charging protection and indication circuit 62, the charging protection and indication circuit 62 comprises a charging protection chip U1, a charging interface J1, a second resistor R2, a third resistor R3, a fourth resistor R4, a first LED lamp D2, a second LED lamp D3 and a second capacitor C2, the GHRG pin of the charging protection chip U1 is connected with the negative electrode of the first LED lamp D2 through the third resistor R3, the positive electrode of the first LED lamp D2 is connected with the positive electrode of the charging interface J1, the BAT pin of the charging protection chip U1 is connected with one end of the battery holder and the 2 nd and 4 th pins of the toggle switch KW1, the CHRGT pin of the charging protection chip U1 is connected with the negative electrode of the second LED lamp D3 through the fourth resistor R4, the positive electrode of the second LED lamp D3 is connected with the positive electrode of the charging interface J5, and the PROG protection chip U1 is grounded through the second resistor R57324.

The charging protection chip U1 can adopt a charging chip with the model number TC4054-4, has the characteristics of high voltage resistance and small packaging, and enables the volume of the control mainboard 6 to be smaller. The CHRG pin is a charging indication pin, the PROG pin is a charging current preset pin, the CHRGT pin is a charging completion indication pin, the BAT pin is a charging current output pin, and the charging interface J1 can adopt a 2-pin or 5-pin USB interface. Interface J1 sets up in repairing burr body 1 middle part charges to in the cable wiring, improve the flexibility of control mainboard 6 installation.

The first LED lamp D2 and the second LED lamp D3 are red LEDs and green LEDs for indicating a charging state and a charging completion state, respectively. When the charge interface J1 is connected with an external power supply, the BAT pin outputs charge voltage and charge current to charge the battery, the CHRG pin outputs low level to enable the first LED lamp D2 to be turned on, and when the battery is fully charged, the CHRGT pin outputs low level to enable the second LED lamp D3 to be turned on to indicate that the charge is completed.

The battery protection circuit 63 is arranged on the control mainboard 6, the battery protection circuit 63 comprises a battery protection chip U2, a fifth resistor R5 and a third capacitor C3, a VM pin of the battery protection chip U2 is grounded, a VDD end of the battery protection chip U2 is connected with the other end of the battery seat and also connected with a GND pin of the battery protection chip U2 and one end of the fifth resistor R5 through a third capacitor C3, and the other end of the fifth resistor R5 is connected with one end of the battery seat and a BAT pin of the charging protection chip U1.

The battery protection chip U2 can adopt a single rechargeable lithium battery protection chip U2 with the model number of DW03, and has the functions of short-circuit protection, over-temperature protection, charger detection and the like, a VN pin of the battery protection chip U2 is a charging/discharging current detection pin, whether a charging interface J1 is connected with the charger is detected, the battery is charged when the charger is detected to be connected, the VDD pin is used for connecting the positive electrode of the battery, when the chip detects short circuit and overhigh temperature, the VDD pin stops outputting and stops charging the battery, and when the chip recovers to be normal, the battery is continuously charged.

For better understanding of the technical method of the present invention, the following will explain the assembly and operation of the electric hair clipper in detail with reference to fig. 1-6:

the electric shaver body 1 includes an upper housing 13 and a lower housing 14, all the parts are assembled with the lower housing 14 as a main body, and the blade mechanism 2 is installed: the elastic sheet 23 is arranged in the lower shell 14 (the round hole of the blade elastic sheet 23 is aligned with the round hole of the lower shell), then the movable blade 22 and the movable blade fixing sheet 24 are arranged in the lower shell, the movable blade fixing sheet 24 and the movable blade fixing sheet are combined through hot melting, then the static blade 21 is arranged on the static blade 21, and the static blade 21 is fixed on the lower shell 14 (fixed through the square hole and the buckling position of the lower shell 14).

Mounting of gear 41 mechanism 4: the fixed shaft 43 is pressed into the lower housing 14, the toothed plate 42 is mounted on the fixed shaft 43 so as to insert the hole of the toothed plate 42, the gear 41 is pressed into the motor 5, and the motor 5 is then mounted into the lower housing 14.

Installation of the control main board 6: control mainboard 6 bonding wire connection motor 5 and battery BAT1, on the toggle switch KW1 of control mainboard 6 of packing into control button 11, then pack into down casing 14 (through the recess fixed control mainboard 6 of casing 14 down), cover the motor lid at last, motor 5 lid passes through the screw fixation on casing 14 down.

Thereafter, the upper case 13 is engaged with the lower case 14, and the tail cover is attached (the tail cover is fixed to the upper case 132 by screws).

Then, the protective cover 7 is covered, the protective cover 7 is clamped by the clamping protrusion 12 of the shaver body 1 through the clamping of the groove of the protective cover 7, and after the protective cover 7 is covered, the control button 11 is prevented from being pushed forwards to prevent the machine from being started.

When the control button 11 is pushed up by one gear, the toggle switch KW1 is turned on to supply power to the motor 5 from the battery, the motor 5 rotates to drive the gear 41 to rotate, the gear 41 drives the fluted disc 42 to rotate, the eccentric shaft 44 is arranged on the fluted disc 42, the eccentric shaft 44 drives the transmission rod 3 to move back and forth, so that the transmission rod 3 drives the movable blade to move back and forth, and the hair is cut by the relative movement of the movable blade 22 and the stationary blade 21.

To sum up, the utility model provides an electronic hair clipper includes the hair clipper body and sets up in the blade mechanism of the head of hair clipper body, be provided with transfer line, gear mechanism and motor in the hair clipper body, motor drive gear mechanism action makes transfer line reciprocating motion control blade mechanism prune hair, the middle part of hair clipper body is thicker than both ends, and the head of hair clipper body sets up to the lopsidedness of hair clipper body, the afterbody of hair clipper body is crooked to the opposite side of hair clipper body, adopts the mode of electronic pruning, is difficult for cutting wounded user's skin to thick in the middle of hair clipper body adopts, the head is to the mode that the lopsidedness set up, is convenient for when pruning the operation to control and prune the operation.

Furthermore, the utility model discloses an electronic hair clipper wholly is lark shape, and is pleasing to the eye, and the shape of hair clipper body is convenient for control and pruning operation when pruning the operation moreover.

It should be understood that equivalent alterations and modifications can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such alterations and modifications should fall within the scope of the appended claims.

Claims

1. The electric hair trimming cutter comprises a hair trimming cutter body and a blade mechanism arranged at the head of the hair trimming cutter body, and is characterized in that a transmission rod, a gear mechanism and a motor are arranged in the hair trimming cutter body, the motor drives the gear mechanism to act so that the transmission rod reciprocates to control the blade mechanism to trim hair, the middle of the hair trimming cutter body is thicker than two ends of the hair trimming cutter body, the head of the hair trimming cutter body is obliquely arranged towards one side of the hair trimming cutter body, and the tail of the hair trimming cutter body is bent towards the other side of the hair trimming cutter body.

2. The electric hair clipper according to claim 1, wherein the hair clipper body is further provided with a control main board and a toggle switch for controlling the working state of the motor, the toggle switch is electrically connected with the control main board, and the hair clipper body is provided with a control button for controlling the conducting state of the toggle switch.

3. The electric hair clipper of claim 2, further comprising a protective cover, wherein when the protective cover is covered with the clipper body, the protective cover abuts against the toggle switch to prevent the control button from being triggered by mistake.

4. The electric hair clipper according to claim 3, wherein the hair clipper body is provided with a locking protrusion, and the protective cover is correspondingly provided with a locking groove matched with the locking protrusion.

5. The electric hair clipper according to claim 2, wherein the inner side surface of the control knob is provided with a groove for engaging with the movable contact of the toggle switch.

6. The electric hair cutter according to claim 2, wherein the blade mechanism comprises a stationary blade, a movable blade and an elastic sheet for tightly attaching the stationary blade and the movable blade, the movable blade is clamped between the stationary blade and the elastic sheet, one end of the movable blade is connected with one end of a transmission rod, and the other end of the transmission rod is connected with the gear mechanism; the gear mechanism comprises a gear, a fluted disc and a fixed shaft, the gear is coaxially connected with an output shaft of the motor and is meshed with the fluted disc, one side of the gear is arranged in the hair repairing cutter body through the fixed shaft, an eccentric shaft is arranged on the other side of the gear, and the other end of the transmission rod is sleeved on the eccentric shaft.

7. The electric hair clipper according to claim 2, wherein the control main board is provided with a motor protection circuit, the motor protection circuit comprises a first resistor, a first diode and a first capacitor, one end of the motor is connected with the 5 th pin and the 6 th pin of the toggle switch and the cathode of the first diode through the first resistor, the other end of the motor and the anode of the first diode are grounded, and the first capacitor is connected with two ends of the first diode in parallel.

8. The electric hair clipper according to claim 7, wherein a charging protection and indication circuit is arranged on the control mainboard, the charging protection and indication circuit comprises a charging protection chip, a charging interface, a second resistor, a third resistor, a fourth resistor, a first LED lamp, a second LED lamp and a second capacitor, a GHRG pin of the charging protection chip is connected with a negative electrode of the first LED lamp through the third resistor, a positive electrode of the first LED lamp is connected with a positive electrode of the charging interface, a BAT pin of the charging protection chip is connected with one end of the battery base and a No. 2 pin and a No. 4 pin of the toggle switch, a CHRGT pin of the charging protection chip is connected with a negative electrode of the second LED lamp through the fourth resistor, a positive electrode of the second LED lamp is connected with a positive electrode of the charging interface, and a PROG pin of the charging protection chip is grounded through the second resistor.

9. The electric hair clipper according to claim 8, wherein a battery protection circuit is arranged on the control mainboard, the battery protection circuit comprises a battery protection chip, a fifth resistor and a third capacitor, a VM pin of the battery protection chip is grounded, a VDD end of the battery protection chip is connected with the other end of the battery holder and is also connected with a GND pin of the battery protection chip and one end of the fifth resistor through the third capacitor, and the other end of the fifth resistor is connected with one end of the battery holder and a BAT pin of the charging protection chip.

10. The electric hair clipper according to any one of claims 1 to 9, wherein the clipper body has a higher bent portion at a side of the blade mechanism than a bent portion at an opposite side thereof.