Automatic hair curler with hair curling head convenient to replace

Abstract

The utility model relates to the field of automatic hair curlers, in particular to an automatic hair curler with a hair curling head convenient to replace, which comprises a handle, the hair curling head and an electric control component. The tail end, close to the handle, of the hair curling head is an electricity connection male end electrically connected with the heating piece and the temperature sensor, the tail end, away from the gear motor, of the shaft core is provided with an annular inner groove, a locking piece and an elastic piece are arranged in the electricity connection male end, and one end of the locking piece is provided with a locking hole which can be used for penetrating the shaft core in a paired mode and can be clamped into the annular inner groove. Under the elastic action of the elastic piece, the locking piece slides into and is automatically clamped in the annular inner groove, the power connection male end and the power connection female end are in butt joint at the moment, electrical connection can be achieved, the gear motor can synchronously drive the shaft core, the power connection female end and the hair curling head when working, and therefore the automatic hair curling machine can be used for automatic hair curling, overall operation is easy and convenient, connection is stable and not loosened, and the service life is long. And the functions of quick automatic locking and quick dismounting can be realized through the locking plate.

Description

Technical Field

[0001] The utility model relates to the field of automatic hair curlers, in particular to an automatic hair curler which is convenient for replacing a curling head. Background Art

[0002] A common curling iron is a high-temperature electronic product used to curl hair. It mainly transmits the temperature to the surface of a metal plate or a ceramic plate through a heating element. The surface temperature is generally set to a certain temperature. The curling iron, which reaches a certain temperature, curls the hair. The curling irons on the market are very convenient to operate and are very popular among consumers.

[0003] The curling iron is composed of a handle, a curling rod and a clamp. The clamp is located on the side of the curling rod and is used to clamp the hair. After the clamp clamps the hair, the curling rod can be manually or electrically controlled to rotate, thereby driving the hair to achieve a curling action. There are also hot air curling irons that can blow out hot air. By arranging a hair dryer inside the handle, the hot air is blown out along the surface of the curling rod, so that the hair can be heated more evenly during the curling process.

[0004] In order to meet the needs of users, there are now two or three curling irons with different specifications configured on one handle on the market, and curling irons of different specifications can be suitable for different curly hair styles. In order to solve the technical problem of easy replacement, a common technical solution is to use a magnetic connection method. For example, the Chinese utility model patent with announcement number CN203493004U discloses a curling iron with a replaceable curling iron assembly. In this technical solution, the curling iron assembly and the handle are connected by magnetic attraction, which can achieve rapid disassembly and installation of the curling iron assembly and the handle. A variety of different hairstyles can be made by using one handle with multiple different curling iron assemblies. This technical solution also has the following defects: the commonly used curling iron is composed of an aluminum tube as a whole, the entire curling iron is heavy, and the connection stability is poor. The magnetic connection method has the problem of detaching from the handle due to external force collision, so there will be certain safety hazards during use. Utility Model Content

[0005] The purpose of the utility model is to solve the above defects and provide an automatic curling iron which is easy to replace curling heads. The curling heads of different sizes can be quickly disassembled and replaced, and the operation is simple and convenient, thus solving the technical problem of inconvenient curling heads in the prior art.

[0006] The purpose of the utility model is achieved by the following methods:

[0007] An automatic curling iron that is convenient for replacing a curling head comprises a handle, a curling head and an electric control component, wherein the electric control component comprises a heating plate, a temperature sensor, a main control circuit board and a power supply, wherein the heating plate, the temperature sensor and the power supply are all electrically connected to the main control circuit board, the main control circuit board and the power supply are both arranged inside the handle, and the heating plate and the temperature sensor are both arranged inside the curling head, wherein one end of the handle close to the curling head is a female power connection end electrically connected to the main control circuit board, and one end of the curling head close to the handle is a male power connection end electrically connected to the heating plate and the temperature sensor, and the male power connection end can be detachably matched and snapped into the female power connection end and electrically connected thereto; the handle is provided with a female power connection end electrically connected to the main control circuit board An electrically connected reduction motor, wherein the shaft of the reduction motor is axially connected with a shaft core, an end of the shaft core away from the reduction motor passes through and is fixed to the female end of the power connection, and can extend into the male end of the power connection, an end of the shaft core away from the reduction motor is provided with an annular inner groove, and the reduction motor can synchronously drive the shaft core, the female end of the power connection and the curling head when working; a locking plate and an elastic member are provided in the male end of the power connection, one end of the locking plate is provided with a locking hole that can be used for matching and penetrating the shaft core and can be stuck in the annular inner groove, the other end of the locking plate is connected with an unlocking key located on the side of the male end of the power connection, the elastic member is used to continuously provide the locking plate and the unlocking key with an elastic force away from the shaft core and perpendicular to the extension direction of the shaft core, and when the unlocking key is pressed, the locking hole can be disengaged from the annular inner groove.

[0008] Furthermore, the male end of the power connection includes a connector, a locking sheet pressing piece, a male needle and a male needle pressing piece. The locking sheet pressing piece is fixed inside the connector, and an end face of the locking sheet pressing piece close to the locking sheet is provided with a sliding groove for sliding into the locking sheet for matching. The male needle is electrically connected to the heating plate and the temperature sensor respectively. The male needle is arranged inside the connector and extends along the direction of the female end of the power connection. The male needle pressing piece is provided with a first through hole for matching, passing through and pressing the male needle, and is fixed to an end face of the connector close to the female end of the power connection; the female end of the power connection includes a female needle seat, a female needle, a circular PCB board and a rotating seat. The circular PCB board is installed in the inner cavity formed between the female needle seat and the rotating seat. The number and arrangement position of the female needle are consistent with those of the male needle. The female needle is welded to the circular PCB board, and the opening of the female needle faces the corresponding male needle. The female needle seat is close to the male end of the power connection and a second through hole corresponding to the female needle is left on the female needle seat.

[0009] Furthermore, an end face of the male needle pressure piece close to the female end for connecting to electricity is provided with a positioning column extending in the direction of the female end for connecting to electricity, and the positioning column gradually shrinks in the direction of the female end for connecting to electricity, and an end face of the female needle seat close to the male end for connecting to electricity is provided with a positioning groove for mating and inserting the positioning column, and there are two annular inner grooves in total, and the two annular inner grooves are arranged in sequence along the extension direction of the shaft core.

[0010] Furthermore, the interior of the connector is provided with a sleeve which is consistent with the extension direction of the shaft core and is used to mate and penetrate the shaft core. The locking hole includes a large hole and a small hole which are connected to each other. The inner diameter of the large hole is larger than the outer diameter of the shaft core, and the inner diameter of the small hole is smaller than the outer diameter of the shaft core. The elastic part is composed of a spring, and the spring is compressed between the unlocking key and the connector.

[0011] Furthermore, the curling head includes a heating rod body and a clip. A heat-conducting frame for installing the heating plate and the temperature sensor is provided inside the heating rod body. The heat-conducting frame is respectively close to the inner wall of the heating rod body and the heating plate. The heating rod body is heated by the heating plate. One end of the heating rod body is matched, inserted into and fixed to the connector. A plug is provided at the end of the heating rod body away from the connector. One end of the clip is hinged to the connector, and the other end of the clip is in the same extension direction as the heating rod body and extends to the surface of the heating rod body.

[0012] Furthermore, a button for operating to open the clip is provided at one end of the clip close to the connector. The button is installed on the connector through a rotating shaft, and a torsion spring for providing resilience to the button is provided between the button and the connector.

[0013] Furthermore, the male pins and female pins are each provided with two pairs, the two pairs of male pins respectively include a first male pin for electrically connecting to the heating plate and a second male pin for electrically connecting to the temperature sensor, the two pairs of female pins respectively include a first female pin corresponding to the first male pin and a second female pin corresponding to the second male pin, the first female pin is electrically connected to the main control circuit board through the first power connection component, and the second female pin is electrically connected to the main control circuit board through the second power connection component.

[0014] Furthermore, a control PCB board electrically connected to a main control circuit board is provided at one end of the handle close to the power connection female end, a control button corresponding to the position of the control PCB board is provided on the surface of the handle, the control PCB board is installed through a fixing seat, a first power connection component comprises a large flat electrode ring, a small flat electrode ring, a large curved electrode ring and a small curved electrode ring, the large flat electrode ring and the small flat electrode ring are fixedly installed in the rotating seat in an insulated manner, one end of the large flat electrode ring and the small flat electrode ring are both provided with a first conductive contact pin extending to the circular PCB board and electrically connected to the first female needle, the large curved electrode ring and the small curved electrode ring are both electrically connected to the main control circuit board, the large curved electrode ring and the small curved electrode ring are fixedly installed in the fixing seat in an insulated manner, the large curved electrode ring and the small curved electrode ring both comprise an arc-shaped protrusion, and the arc-shaped protrusion of the large curved electrode ring continuously adheres to the large flat electrode ring The arc-shaped protrusion of the arc-shaped small electrode ring continuously clings to one end face of the planar small electrode ring, and can slide in a circle against one end face of the planar small electrode ring. The second electrical connection component comprises a first electrode ring, a second electrode ring, a first contact sheet and a second contact sheet. The first electrode ring and the second electrode ring are insulated from each other and fixedly installed on one end of the rotating seat away from the female needle seat. One end of the first electrode ring and the second electrode ring are both provided with a second conductive contact pin extending to the circular PCB board and electrically connected to the second female needle. The first contact sheet and the second contact sheet are both installed on the fixed seat and electrically connected to the control PCB board. The first contact sheet continuously clings to the periphery of the first electrode ring and can slide against the periphery of the first electrode ring. The second contact sheet continuously clings to the periphery of the second electrode ring and can slide against the periphery of the second electrode ring.

[0015] Furthermore, the handle comprises an upper shell and a lower shell which are matched and combined, and the power supply is constituted by a power cord, which is fixedly installed at an end of the handle away from the curling head through a rotating tail pressing piece.

[0016] Furthermore, a negative ion generator electrically connected to the main control circuit board is provided inside the handle, and a negative ion outlet seat is provided on one end face of the handle close to the power-connecting female end, and a negative ion outlet connected to the negative ion generator is left on the negative ion outlet seat.

[0017] The beneficial effects of the utility model are as follows: the curling head is designed as a detachable and replaceable structure, by providing an axis core for installing the curling head, the axis core is provided with an annular inner groove for realizing quick clamping, and at the same time, a locking piece which can be matched and quickly clamped into the annular inner groove is provided in the curling head. When installing the curling head, the power-connecting male end of the curling head can be directly aligned with the power-connecting female end of the handle, and the axis core is inserted into the power-connecting male end. Under the elastic force of the elastic member, the locking piece slides into and is automatically clamped in the annular inner groove, at this time, the power-connecting male end and the power-connecting female end are docked, and electrical connection can be realized. When the reduction motor is working, it can synchronously drive the axis core, the power-connecting female end and the curling head, so that it can be used for automatic curling. When it is necessary to disassemble and replace the curling head of different specifications, the unlocking key is manually pressed to disengage the locking hole from the annular inner groove, and the curling head of different specifications is taken out in the opposite direction to that during installation and replaced. The overall operation is simple and convenient, the connection is stable and not loose, and safety hazards are avoided. The functions of quick automatic locking and quick disassembly can be realized through the locking piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the automatic hair curler of the utility model which is convenient for replacing the hair curling head;

[0019] Figure 2 It is a cross-sectional view of the automatic hair curler of the utility model which is convenient for replacing the hair curling head;

[0020] Figure 3 for Figure 2 A partial enlarged view of middle A;

[0021] Figure 4 This is a schematic diagram of the structure of the handle in the utility model for facilitating replacement of the curling head;

[0022] Figure 5 This is a schematic diagram of the three-dimensional structure of the handle in the utility model for facilitating replacement of the curling head;

[0023] Figure 6 This is a schematic diagram of the structure of the curling head in the utility model for facilitating replacement of the curling head;

[0024] Figure 7 This is a schematic diagram of the three-dimensional structure of the curling head in the utility model for facilitating replacement of the curling head;

[0025] Figure 8 This is a schematic diagram of the disassembly state of the handle and two curling heads of different specifications in the utility model for easy replacement of the curling head;

[0026] Fig. 9 This is a schematic diagram of the structure of the utility model for facilitating the replacement of the electrical male terminal of the curling head;

[0027] Fig.10 This is a schematic diagram of the three-dimensional structure of the utility model for facilitating replacement of the female end of the electric connection in the curling head;

[0028] Fig.11 This is a schematic diagram of the three-dimensional structure of the first power connection component and the second power connection component in the hair curling head of the utility model for facilitating replacement;

[0029] Fig.12 This is a schematic diagram of the partial structure of the first power connection component and the second power connection component in the utility model for facilitating replacement of the curling head;

[0030] Fig.13 This is a schematic diagram of the structure of the utility model for facilitating replacement of the first power connection component and the second power connection component in the curling head;

[0031] In the figure, 1-handle, 101-upper shell, 102-lower shell, 103-power cord, 104-main control circuit board, 105-circular PCB board, 106-control PCB board, 107-control button, 108-reduction motor, 109-shaft core, 110-annular inner groove, 111-female needle seat, 112-female needle, 113-rotating seat, 114-fixed seat, 115-flat large electrode ring, 116-flat small electrode ring, 117-arc large electrode ring, 118-arc small electrode ring, 119-first electrode ring, 120-second electrode ring, 121 -first contact piece, 122-second contact piece, 123-negative ion outlet seat, 124-tail pressing piece, 125-main control switch, 126-lens, 2-curling head, 201-heating rod body, 202-clamping piece, 203-button, 204-torsion spring, 205-heat conducting frame, 206-heating piece, 207-temperature sensor, 208-plug, 209-plug seat, 210-connector, 211-locking piece pressing piece, 212-male needle, 213-male needle pressing piece, 214-spring, 215-unlocking key, 216-locking piece, 217-locking hole, 218-sleeve. DETAILED DESCRIPTION

[0032] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0033] In this embodiment, refer to Figure 1-Figure 13 The specific implementation of the automatic curling iron for convenient replacement of the curling head 2 includes a handle 1, a curling head 2 and an electric control component. The curling head 2 is detachably mounted on one end of the handle 1. The electric control component includes a heating plate 206, a temperature sensor 207, a main control circuit board 104 and a power supply. The heating plate 206, the temperature sensor 207 and the power supply are all electrically connected to the main control circuit board 104. The main control circuit board 104 and the power supply are both arranged inside the handle 1. The heating plate 206 and the temperature sensor 207 are both arranged inside the curling head 2. The heating plate 206 of this embodiment adopts a PTC heating plate, and the temperature sensor 207 adopts an NTC temperature sensor. Figure 4As shown, the handle 1 includes an upper shell 101 and a lower shell 102 that are paired together. The upper shell 101 and the lower shell 102 are fixed by screws. The power supply is composed of a power cord 103. The power cord 103 is fixedly installed at one end of the handle 1 away from the curling head 2 through a rotating tail pressing piece 124. A main control switch 125 is provided at one end of the handle 1 close to the power cord 103. The main control switch 125 is used for turning on, off and adjusting the temperature. The main control switch 125 extends to the top surface of the upper shell 101, and a lens 126 for covering the main control switch 125 is provided on the top surface of the upper shell 101.

[0034] like Figure 4-Figure 7 As shown, one end of the handle 1 close to the curling head 2 is a female power terminal electrically connected to the main control circuit board 104, and a negative ion generator electrically connected to the main control circuit board 104 is also provided inside the handle 1. A negative ion outlet seat 123 is provided on one end face of the handle 1 close to the female power terminal, and a negative ion outlet connected to the negative ion generator is left on the negative ion outlet seat 123. One end of the curling head 2 close to the handle 1 is a male power terminal electrically connected to the heating sheet 206 and the temperature sensor 207, and the male power terminal can be detachably matched and inserted into the female power terminal and electrically connected thereto.

[0035] The handle 1 is provided with a reduction motor 108 electrically connected to the main control circuit board 104. The shaft of the reduction motor 108 is axially connected to a shaft core 109. The shaft core 109 can be made of stainless steel. The end of the shaft core 109 away from the reduction motor 108 passes through and is fixed to the female end of the power connection, and can extend into the male end of the power connection. The end of the shaft core 109 away from the reduction motor 108 is provided with an annular inner groove 110. There are two annular inner grooves 110 in total. The two annular inner grooves 110 are arranged in sequence along the extension direction of the shaft core 109. The two annular inner grooves 110 in this embodiment can play a double insurance role, ensuring that the disassembly process is assisted by the annular inner groove 110 close to the outside, ensuring that the curling head 2 is not easy to fall off due to improper operation, avoiding safety hazards. When the reduction motor 108 is working, it can synchronously drive the shaft core 109, the female end of the power connection and the curling head 2, so that it can be used for automatic curling.

[0036] A locking piece 216 and an elastic member are provided in the electrical male terminal. The elastic member can specifically be a spring 214. One end of the locking piece 216 is provided with a locking hole 217 that can be used to mate and penetrate the shaft core 109 and can be snapped into the annular inner groove 110. The locking hole 217 includes a large hole and a small hole that are connected to each other. The inner diameter of the large hole is larger than the outer diameter of the shaft core 109, and the inner diameter of the small hole is smaller than the outer diameter of the shaft core 109. The provision of large holes and small holes can not only increase the convenience of connection and realize quick connection, but also the provision of small holes can increase the stability of the connection. The other end of the locking piece 216 is connected to an unlocking key 215 located on the side of the male end of the power connection. The elastic member is used to continuously provide an elastic force to the locking piece 216 and the unlocking key 215 away from the shaft core 109 and perpendicular to the extension direction of the shaft core 109. When the unlocking key 215 is pressed, the locking hole 217 can be disengaged from the annular inner groove 110. When the curling head 2 is installed, the locking hole 217 is inserted into an annular inner groove 110 close to the female end of the power connection for a standard installation state.

[0037] like Fig. 9 As shown, the electrical male end includes a connector 210, a locking piece pressure piece 211, a male needle 212 and a male needle pressure piece 213. The end of the connector 210 close to the unlocking key 215 is provided with a cavity for accommodating a spring 214. The spring 214 is compressed in the cavity between the unlocking key 215 and the connector 210. The locking piece pressure piece 211 is fixed to the inside of the connector 210. The end surface of the locking piece pressure piece 211 close to the locking piece 216 is provided with a sliding groove for matching and sliding into the locking piece 216. The male needle 212 is electrically connected to the heating plate 206 and the temperature sensor 207 respectively. In this embodiment, there are four male needles 212 in total, which are divided into two pairs. The two pairs of male needles 212 respectively include a first male needle 212 for electrically connecting to the heating plate 206 and a second male needle 212 for electrically connecting to the temperature sensor 207. The male needle 212 is arranged inside the connector 210 and extends in the direction of the female end of the power connection. The male needle pressing piece 213 is provided with a first through hole for matching and passing through and pressing the male needle 212, and is fixed to an end face of the connector 210 close to the female end of the power connection. The connector 210 is provided with a sleeve 218 in the same direction as the extension of the shaft core 109 and for matching and penetrating the shaft core 109. The sleeve 218 is specifically a copper tube that can increase the stability of the connection. For effective guidance, the male needle pressing piece 213 is provided with two positioning columns extending in the direction of the female end of the power connection on an end face close to the female end of the power connection, and the positioning columns gradually shrink in the direction of the female end of the power connection.

[0038] like Figure 4As shown, the female end of the power connection includes a female needle seat 111, a female needle 112, a circular PCB board 105 and a rotating seat 113. The circular PCB board 105 is installed in the inner cavity formed between the female needle seat 111 and the rotating seat 113. The number and arrangement position of the female needle 112 are consistent with the male needle 212. Specifically, there are two pairs of female needles 112, and the two pairs of female needles 112 respectively include a first female needle 112 corresponding to the first male needle 212 and a second female needle 112 corresponding to the second male needle 212. Four female needles 112 are welded to the circular PCB board 105, and the openings of the female needles 112 face the corresponding male needles 212. The female needle seat 111 is close to the male end of the power connection and a second through hole corresponding to the female needle 112 is left on the female needle seat 111. A positioning groove for matching and inserting a positioning column is provided on one end surface of the female needle seat 111 close to the male end of the power connection.

[0039] like Figure 6 As shown, the curling head 2 includes a heating rod body 201 and a clip 202. The heating rod body 201 is composed of a hollow cylindrical aluminum tube. A heat-conducting frame 205 for mounting a heating plate 206 and a temperature sensor 207 is provided inside the heating rod body 201. The heating rod body 201 is heated by the heating plate 206. The heat-conducting frame 205 is respectively close to the inner wall of the heating rod body 201 and the heating plate 206. When the heating plate 206 is working, the heat is effectively transferred to the heat-conducting frame 205, and the heat is evenly dissipated along the heating rod body 201. One end of the heating rod body 201 is paired, inserted and fixed to the connector 210. One end of the heating rod body 201 away from the connector 210 is provided with a plug 208. The plug 208 is fixed by a plug seat 209 that is inserted into the heating rod body 201. One end of the clip 202 is hinged to the connector 210. The other end of the clip 202 is in the same extension direction as the heating rod body 201 and extends to the surface of the heating rod body 201. A handle 203 for operating to open the clip 202 is provided at one end of the clip 202 near the connector 210. The handle 203 is mounted on the connector 210 via a rotating shaft, and a torsion spring 204 for providing resilience to the handle 203 is provided between the handle 203 and the connector 210. The clip 202 can be opened by pressing the handle 203. After the handle 203 is released, the clip 202 can be reset and clamped to the surface of the heating rod body 201 under the resilience of the torsion spring 204. This method can be used to clamp the hair during operation.

[0040] like Figure 10-13As shown, the first female pin 112 is electrically connected to the main control circuit board 104 through the first electrical connection component, and the second female pin 112 is electrically connected to the main control circuit board 104 through the second electrical connection component. The end of the handle 1 close to the female end of the electrical connection is provided with a control PCB board 106 electrically connected to the main control circuit board 104, and the control PCB board 106 is provided with a left rotation button, a right rotation button and a reset button. The surface of the handle 1 is provided with a control button 107 corresponding to the position of the control PCB board 106, and the control PCB board 106 is installed through a fixing seat 114.

[0041] The first electrical connection assembly includes a large flat electrode ring 115, a small flat electrode ring 116, a large curved electrode ring 117, and a small curved electrode ring 118. The diameter of the large flat electrode ring 115 is the same as that of the large curved electrode ring 117, the diameter of the small flat electrode ring 116 is the same as that of the small curved electrode ring 118, and the diameter of the large flat electrode ring 115 is greater than that of the small flat electrode ring 116. The large flat electrode ring 115 and the small flat electrode ring 116 are fixedly installed in the rotating seat 113 in an insulated manner, and one end of each of the large flat electrode ring 115 and the small flat electrode ring 116 is provided with a first conductive contact pin extending to the circular PCB board 105 and electrically connected to the first female pin 112. The arc surface large electrode ring 117 and the arc surface small electrode ring 118 are both electrically connected to the main control circuit board 104, and are fixedly installed in the fixing seat 114 in an insulated manner. The arc surface large electrode ring 117 and the arc surface small electrode ring 118 cannot rotate after being fixed to the fixing seat 114, while the plane large electrode ring 115 and the plane small electrode ring 116 can rotate together with the rotating seat 113 under the drive of the shaft core 109. Figure 12-13 As shown, the large arc surface electrode ring 117 and the small arc surface electrode ring 118 both include an arc-shaped protrusion. The arc-shaped protrusion of the large arc surface electrode ring 117 continuously sticks to one end surface of the large flat electrode ring 115, and can slide in a circle against one end surface of the large flat electrode ring 115. When the large flat electrode ring 115 is driven to rotate by the rotating seat 113, the arc-shaped protrusion of the relatively fixed large arc surface electrode ring 117 always sticks to the large flat electrode ring 115, ensuring that the large flat electrode ring 115 and the large arc surface electrode ring 117 are always in a conductive state. The arc-shaped protrusion of the arc-surface small electrode ring 118 continuously clings to one end surface of the planar small electrode ring 116, and can slide in a circle against one end surface of the planar small electrode ring 116. When the planar small electrode ring 116 is driven to rotate by the rotating seat 113, the arc-shaped protrusion of the relatively fixed arc-surface small electrode ring 118 always clings to the planar small electrode ring 116, ensuring that the planar small electrode ring 116 and the arc-surface small electrode ring 118 are always in a conductive state.

[0042] like Figure 12-13As shown, the second power connection assembly includes a first electrode ring 119, a second electrode ring 120, a first contact piece 121 and a second contact piece 122. The first electrode ring 119 and the second electrode ring 120 are insulated from each other and fixedly installed on an end of the rotating seat 113 away from the female needle seat 111. When the rotating seat 113 rotates, the first electrode ring 119 and the second electrode ring 120 can be driven to rotate synchronously. One end of the first electrode ring 119 and the second electrode ring 120 are both provided with a second conductive contact pin extending to the circular PCB board 105 and electrically connected to the second female pin 112. The first contact piece 121 and the second contact piece 122 are both installed on the fixing seat 114 and electrically connected to the control PCB board 106. The first contact piece 121 is continuously in close contact with the periphery of the first electrode ring 119 and can slide in close contact with the periphery of the first electrode ring 119. The second contact piece 122 is continuously in close contact with the periphery of the second electrode ring 120 and can slide in close contact with the periphery of the second electrode ring 120. The first contact piece 121 and the second contact piece 122 are both in a fixed state together with the fixing seat 114. When the reduction motor 108 is working, it drives the shaft core 109 and the rotating seat 113, and the first electrode ring 119 and the second electrode ring 120 rotate synchronously. During the rotation of the first electrode ring 119 and the second electrode ring 120, the first contact piece 121 and the second contact piece 122 are respectively continuously in close contact with them and are always in a conductive state.

[0043] In the power connection path of the first power connection component of this embodiment: the large arc surface electrode ring 117 and the small arc surface electrode ring 118 are both electrically connected to the main control circuit board 104, the large plane electrode ring 115 and the small plane electrode ring 116 are electrically connected to the circular PCB board 105 and the first female needle 112, and at the same time, the arc-shaped protrusion of the large arc surface electrode ring 117 is always in close contact with the large plane electrode ring 115, and the arc-shaped protrusion of the small plane electrode ring 116 is initially in close contact with the small plane electrode ring 116. After the curling head 2 is paired and installed, the first male needle 212 is paired and inserted into the first female needle 112, and the first male needle 212 is electrically connected to the heating plate 206, so that the purpose of independent power supply control for the heating plate 206 can be achieved. In the power connection path of the second power connection component of this embodiment: the control PCB board 106 is electrically connected to the main control circuit board 104, the first contact piece 121 and the second contact piece 122 are both electrically connected to the control PCB board 106, the first contact piece 121 is continuously in close contact with the periphery of the first electrode ring 119, the second contact piece 122 is continuously in close contact with the periphery of the second electrode ring 120, the first electrode ring 119 and the second electrode ring 120 are both electrically connected to the circular PCB board 105 and the second female pin 112, after the curling head 2 is paired and installed, the second male pin 212 is paired and inserted into the second female pin 112, and the second male pin 212 is electrically connected to the temperature sensor 207, so that the purpose of independent power supply control for the temperature sensor 207 can be achieved.

[0044] The curling head 2 of this embodiment is designed to be detachable and replaceable. When installing the curling head 2, the power male end of the curling head 2 can be directly aligned with the power female end of the handle 1, and the shaft core 109 is inserted into the power male end. Under the elastic force of the elastic member, the locking piece 216 slides in and is automatically clamped in the annular inner groove 110 close to the handle 1. Figure 1-Figure 3 As shown, at this time, the male power terminal and the female power terminal are docked and can achieve electrical connection. The overall operation is simple and convenient, the connection is stable and not loose, and safety hazards are avoided. When the reduction motor 108 is working, it can synchronously drive the shaft core 109, the female power terminal and the curling head 2, so that it can be used for automatic curling. When it is necessary to disassemble and replace the curling head 2 of different specifications, manually press the unlocking key 215 to disengage the locking hole 217 from the annular inner groove 110, take out the curling head 2 in the opposite direction to that during installation, and replace the curling head 2 of different specifications, as shown in FIG. Figure 8 As shown, two curling heads 2 with different diameters are provided, and the diameters of the heating rod bodies 201 of the two curling heads 2 are different to adapt to different curling styles.

[0045] The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as the protection scope of the present invention.

Claims

1. An automatic curling iron for facilitating replacement of curling heads, comprising a handle, a curling head and an electric control assembly, wherein the electric control assembly comprises a heating plate, a temperature sensor, a main control circuit board and a power supply, wherein the heating plate, the temperature sensor and the power supply are all electrically connected to the main control circuit board, the main control circuit board and the power supply are both arranged inside the handle, and the heating plate and the temperature sensor are both arranged inside the curling head, wherein the characteristics are: The end of the handle close to the curling head is a female power connection end electrically connected to the main control circuit board, and the end of the curling head close to the handle is a male power connection end electrically connected to the heating plate and the temperature sensor. The male power connection end can be detachably matched and snapped into the female power connection end and electrically connected thereto; a reduction motor electrically connected to the main control circuit board is arranged inside the handle, and a shaft of the reduction motor is axially connected to a shaft core, and an end of the shaft core away from the reduction motor passes through and is fixed to the female power connection end, and can extend into the male power connection end, and an annular inner groove is arranged at an end of the shaft core away from the reduction motor, and the reduction motor can synchronously drive the shaft core, the female power connection end and the curling head when working; a locking plate and an elastic member are arranged inside the male power connection end, and one end of the locking plate is provided with a locking hole that can be used to match and penetrate the shaft core and snap into the annular inner groove, and the other end of the locking plate is connected to an unlocking key located on the side of the male power connection end, and the elastic member is used to continuously provide an elastic force away from the shaft core and perpendicular to the extension direction of the shaft core to the locking plate and the unlocking key, and when the unlocking key is pressed, the locking hole can be separated from the annular inner groove.

2. The automatic hair curler with easy replacement of hair curling heads according to claim 1, characterized in that: The male end of the power connection includes a connector, a locking piece pressing piece, a male needle and a male needle pressing piece. The locking piece pressing piece is fixed inside the connector. An end face of the locking piece pressing piece close to the locking piece is provided with a sliding groove for sliding into the locking piece in a matching manner. The male needle is electrically connected to the heating plate and the temperature sensor respectively. The male needle is arranged inside the connector and extends along the direction of the female end of the power connection. The male needle pressing piece is provided with a first through hole for matching, passing through and pressing the male needle, and is fixed to an end face of the connector close to the female end of the power connection. The female end of the power connection includes a female needle seat, a female needle, a circular PCB board and a rotating seat. The circular PCB board is installed in the inner cavity formed between the female needle seat and the rotating seat. The number and arrangement position of the female needle are consistent with those of the male needle. The female needle is welded to the circular PCB board, and the opening of the female needle faces the corresponding male needle. The female needle seat is close to the male end of the power connection and a second through hole corresponding to the female needle is reserved on the female needle seat.

3. The automatic hair curler for facilitating replacement of hair curling heads according to claim 2, characterized in that: The male needle pressing piece has an end surface close to the female end for connecting to electricity, and a positioning column extending in the direction of the female end for connecting to electricity is provided. The positioning column gradually shrinks in the direction of the female end for connecting to electricity. The female needle seat has an end surface close to the male end for connecting to electricity, and a positioning groove for mating and inserting the positioning column is provided. There are two annular inner grooves in total, and the two annular inner grooves are arranged in sequence along the extension direction of the shaft core.

4. The automatic hair curler for facilitating replacement of hair curling heads according to claim 2, characterized in that: The interior of the connector is provided with a sleeve which is consistent with the extension direction of the shaft core and is used to mate and penetrate the shaft core. The locking hole includes a large hole and a small hole which are connected to each other. The inner diameter of the large hole is larger than the outer diameter of the shaft core, and the inner diameter of the small hole is smaller than the outer diameter of the shaft core. The elastic part is composed of a spring, and the spring is compressed between the unlocking key and the connector.

5. The automatic hair curler for facilitating replacement of hair curling heads according to any one of claims 2 to 4, characterized in that: The curling head includes a heating rod body and a clip. A heat-conducting frame for installing the heating plate and the temperature sensor is provided inside the heating rod body. The heat-conducting frame is respectively close to the inner wall of the heating rod body and the heating plate. The heating rod body is heated by the heating plate. One end of the heating rod body is matched, inserted into and fixed to the connector. A plug is provided at one end of the heating rod body away from the connector. One end of the clip is hinged to the connector, and the other end of the clip is in the same extension direction as the heating rod body and extends to the surface of the heating rod body.

6. The automatic hair curler for facilitating replacement of hair curling heads according to claim 5, characterized in that: A button for operating to open the clip is provided at one end of the clip close to the connector. The button is installed on the connector through a rotating shaft, and a torsion spring for providing resilience to the button is provided between the button and the connector.

7. The automatic hair curler with easy replacement of hair curling heads according to any one of claims 2 to 4, characterized in that: The male and female pins are each provided with two pairs, the two pairs of male pins respectively include a first male pin for electrically connecting to the heating plate and a second male pin for electrically connecting to the temperature sensor, the two pairs of female pins respectively include a first female pin corresponding to the first male pin and a second female pin corresponding to the second male pin, the first female pin is electrically connected to the main control circuit board through the first power connection component, and the second female pin is electrically connected to the main control circuit board through the second power connection component.

8. The automatic hair curler for facilitating replacement of hair curling heads according to claim 7, characterized in that: A control PCB board electrically connected to the main control circuit board is provided at one end of the handle close to the power connection female end, a control button corresponding to the position of the control PCB board is provided on the surface of the handle, the control PCB board is installed through a fixing seat, the first power connection component includes a large flat electrode ring, a small flat electrode ring, a large curved electrode ring and a small curved electrode ring, the large flat electrode ring and the small flat electrode ring are fixedly installed in the rotating seat in an insulated manner, one end of the large flat electrode ring and the small flat electrode ring are both provided with a first conductive contact pin extending to the circular PCB board and electrically connected to the first female needle, the large curved electrode ring and the small curved electrode ring are both electrically connected to the main control circuit board, the large curved electrode ring and the small curved electrode ring are fixedly installed in the fixing seat in an insulated manner, the large curved electrode ring and the small curved electrode ring both include an arc-shaped protrusion, and the arc-shaped protrusion of the large curved electrode ring continuously adheres to one end of the large flat electrode ring The arc-shaped protrusion of the arc-shaped small electrode ring continuously clings to one end surface of the planar small electrode ring, and can slide in a circle against one end surface of the planar small electrode ring. The second power connection component includes a first electrode ring, a second electrode ring, a first contact sheet and a second contact sheet. The first electrode ring and the second electrode ring are fixedly installed on one end of the rotating seat away from the female needle seat in an insulated manner. One end of the first electrode ring and the second electrode ring are both provided with a second conductive contact pin extending to the circular PCB board and electrically connected to the second female needle. The first contact sheet and the second contact sheet are both installed on the fixed seat and electrically connected to the control PCB board. The first contact sheet continuously clings to the periphery of the first electrode ring and can slide against the periphery of the first electrode ring. The second contact sheet continuously clings to the periphery of the second electrode ring and can slide against the periphery of the second electrode ring.

9. The automatic hair curler with convenient replacement of hair curling heads according to any one of claims 1 to 4, characterized in that: The handle comprises an upper shell and a lower shell which are matched and combined. The power supply is formed by a power cord, and the power cord is fixedly installed at an end of the handle away from the curling head through a rotating tail pressing piece.

10. The automatic hair curler with easy replacement of hair curling heads according to any one of claims 1 to 4, characterized in that: The handle is also provided with a negative ion generator electrically connected to the main control circuit board. The end face of the handle close to the power-connecting female end is provided with a negative ion outlet seat, and the negative ion outlet seat is provided with a negative ion outlet connected to the negative ion generator.

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