A hair styling appliance with interchangeable heads

Abstract

The utility model discloses a kind of replaceable hairdressing apparatus, including handle, replaceable head detachably connected on handle and hairdressing assembly arranged on replacement head, circuit board is provided on handle, wiring post is provided on the replacement head, wiring seat is electrically connected with wiring post and is equipped on handle, wiring seat is electrically connected with circuit board, first connecting seat is provided on the handle, first connecting seat is provided with first screw thread, second connecting seat is provided on replacement head, second connecting seat is provided with the second screw thread matched with first screw thread, first connecting seat and second connecting seat are inserted and cooperated, and first screw thread and second screw thread can be relatively screwed and realize locking, wiring seat is rotatably arranged in the middle of first connecting seat and is provided with wiring hole for wiring post insertion, wiring post is arranged on second connecting seat, using one relatively rotatable wiring seat cooperates with wiring post, and locking is carried out by rotating mode, both suitable for frequently replacing head use, and the stability of connection is improved.

Description

Technical Field

[0001] This utility model relates to the field of hair styling equipment technology, and in particular to a hair styling equipment with interchangeable heads. Background Technology

[0002] A replaceable head hair styling tool typically includes a handle and a replacement head. The replacement head is equipped with hair styling components, such as a curling iron, straightener, and perm iron. Changing the replacement head allows for different hair styling functions, so the stability of the connection between the replacement head and the handle is crucial. In existing technologies, the connection between the replacement head and the handle mainly uses a snap-fit ​​mechanism, where a hook is locked onto a slot. During assembly, external force is required to deform the hook and disengage it from the slot, thus unlocking the replacement head. However, with prolonged use, the hook is prone to deformation or breakage, leading to loosening. Furthermore, since the product requires electrical connection to a terminal block via terminals, a loose replacement head can easily cause poor electrical contact, affecting usability. Utility Model Content

[0003] The purpose of this utility model is to overcome the defects of the prior art and provide a replaceable head hair styling tool. It adopts a relatively rotatable terminal block and terminal post, and locks by rotation. It is suitable for frequent head replacement and improves the stability of the connection.

[0004] This utility model discloses a replaceable head hair styling device, including a handle, a replaceable head detachably connected to the handle, and a hair styling component disposed on the replaceable head. A circuit board is disposed on the handle, and a terminal block is disposed on the replaceable head. The handle is provided with a terminal block electrically connected to the terminal block, and the terminal block is electrically connected to the circuit board. The device is characterized in that: a first connecting seat is disposed on the handle, and a first thread is disposed on the first connecting seat; a second connecting seat is disposed on the replaceable head, and a second thread is disposed on the second connecting seat that is adapted to the first thread; the first and second connecting seats are plugged into each other, and the first and second threads can be tightened relative to each other to achieve locking; the terminal block is rotatably disposed in the middle of the first connecting seat and has a terminal hole for inserting the terminal block; the terminal block is disposed on the second connecting seat.

[0005] A further feature of this invention is that the handle is also provided with a blocking member for limiting the rotation angle of the replacement head, and the replacement head is provided with a blocking surface that cooperates with the blocking member. When the blocking surface rotates to the blocking member, it can abut against the blocking member to form a rotation limit.

[0006] A further feature of this invention is that the blocking member is a blocking block, the top of the blocking block is provided with a positioning groove, and the replacement head is provided with a positioning block located at the positioning groove and tightened and positioned therewith.

[0007] A further feature of this invention is that the blocking block is inclined to one side of the blocking surface to form a guiding surface, and the bottom of the positioning block is arc-shaped.

[0008] Further features of this invention: The handle is provided with a rotating disk that can rotate relative to the handle and a drive motor that drives the rotating disk to rotate. An extension plate is provided on the first connecting seat. A limiting plate is provided inside the handle. The extension plate and the limiting plate are spaced apart to form a rotating cavity. The rotating disk extends into the rotating cavity. A barb is also provided on the rotating disk.

[0009] Using the above technical solution, the hair styling components can be curling irons, hair straighteners, or hair combs. During assembly, by inserting the terminal on the replacement head into the terminal hole of the connector, the first and second threads are aligned. Further, the replacement head is rotated and screwed in. At this time, the connector rotates together with the replacement head, thus preventing damage to the terminal. When a certain angle is reached, it is tightened, completing the assembly. Locking is achieved by rotation, which is suitable for frequent head replacement and improves the stability of the connection. Because the connector and the circuit board are connected by wires, the range of the rotation angle is 45-120°, with 90° being the most preferred, which can prevent the solder joints of the wires from breaking. Of course, the connector and the circuit board can also be electrically connected through a conductive plate. The connector can rotate normally on the conductive plate without affecting the circuit board. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of the hair styling component of this utility model when a curling iron is used; Figure 2 for Figure 1 Partial structural diagram; Figure 3 This is a schematic diagram of the structure of the replacement head and the drive motor of this utility model. Figure 4 This is a schematic diagram of one of the replacement head structures of this utility model; Figure 5 This is a schematic diagram of the handle structure of this utility model; Figure 6 for Figure 5 Schematic diagram of the structure after the terminal block is removed; Figures 7-10 The diagram shows different hair styling component structures used in this utility model. Detailed Implementation

[0011] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings: In the description of this utility model, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0012] This utility model discloses a replaceable head hair styling device, including a handle 1, a replaceable head 2 detachably connected to the handle 1, and a hair styling component 3 disposed on the replaceable head 2. A circuit board 4 is disposed on the handle 1 (a control switch on the handle 1 to control the hair styling component 3 is a conventional technique and will not be described in detail here). A terminal block 21 is disposed on the replaceable head 2, and a terminal block 11 electrically connected to the terminal block 21 is disposed on the handle 1. The terminal block 11 is electrically connected to the circuit board 4. In this utility model embodiment, the handle 1... The first connecting seat 12 is provided on the upper part, and the first connecting seat 12 is provided with a first thread 121. The replacement head 2 is provided with a second connecting seat 22, and the second connecting seat 22 is provided with a second thread 221 that is adapted to the first thread 121. The first connecting seat 12 and the second connecting seat 22 are inserted and engaged, and the first thread 121 and the second thread 221 can be tightened relative to each other to achieve locking. The terminal block 11 is rotatably located in the middle of the first connecting seat 12 and is provided with a terminal hole 111 for inserting the terminal 21. The terminal 21 is located on the second connecting seat 22.

[0013] Using the above technical solution, the hair styling component 3 can be a curling iron, a hair straightener, or a hair comb. The terminal block 21 is used to connect the electrical components of the hair styling component 3 to the circuit board 4. During assembly, by inserting the terminal block 21 on the replacement head 2 into the wiring hole 111 of the terminal block 11, the first thread 121 and the second thread 221 can be aligned. Further, the replacement head 2 is rotated and screwed in. At this time, the terminal block 11 will rotate together with the replacement head 2, thereby preventing damage to the terminal block 21. When the rotation reaches a certain angle, it can be tightened and the assembly is completed. Locking is achieved by rotation, which is suitable for frequent head replacement and improves the stability of the connection. Because the terminal block 11 and the circuit board 4 are connected by wires, the range of the rotation angle is 45-120°, with 90° being the most preferred, which can prevent the solder joints of the wires from breaking. Of course, the terminal block 11 and the circuit board 4 can also be electrically connected through a conductive plate. The terminal block 11 can rotate normally on the conductive plate without affecting the circuit board.

[0014] The handle 1 is also provided with a blocking member 13 for limiting the rotation angle of the replacement head 2. The replacement head 2 is provided with a blocking surface 23 that cooperates with the blocking member 13. When the blocking surface 23 rotates to the blocking member 13, it can abut against the blocking member 13 to form a rotation limit, which can prevent the replacement head 2 from rotating excessively, thereby preventing damage to the internal circuit.

[0015] The blocking member 13 is a blocking block, and a positioning groove 131 is provided on the top of the blocking block. A positioning block 24 is provided on the replacement head 2 at the position of the positioning groove 131 to be tightened and positioned therewith. The cooperation between the positioning groove 131 and the positioning block 24 can play a tightening role to prevent the replacement head 2 from loosening. Furthermore, the positioning groove 131 is set at the position of the blocking block, and its structural layout is relatively reasonable, allowing it to be positioned when rotated to a designated position.

[0016] The blocking block is inclined to one side of the blocking surface 23 to form a guide surface 132, and the bottom of the positioning block 24 is arc-shaped, which makes it easy for the positioning block 24 to slide into the positioning groove 131, preventing hard collisions and making assembly more convenient.

[0017] The handle 1 is provided with a rotating disk 14 that can rotate relative to the handle 1 and a drive motor 15 that drives the rotating disk 14 to rotate. The first connecting seat 12 is provided with an extension plate 122. The handle 1 is provided with a limiting plate 16. The extension plate 122 and the limiting plate 16 are spaced apart to form a rotating cavity. The rotating disk 14 extends into the rotating cavity. The rotating disk 14 is also provided with a barb 141. When the hair styling component 3 uses a curling iron, its comb teeth need to rotate relative to each other. At this time, the barb 141 will hook into the slot of the comb teeth and drive the rotating disk 14 to rotate through the drive motor 15, thereby driving the comb teeth to rotate and realizing the function of automatic curling.

Claims

1. A replaceable head hair styling device, comprising a handle (1), a replaceable head (2) detachably connected to the handle (1), and a hair styling component (3) disposed on the replaceable head (2), wherein a circuit board (4) is disposed on the handle (1), a terminal block (21) is disposed on the replaceable head (2), and a terminal block (11) electrically connected to the terminal block (21) is disposed on the handle (1), the terminal block (11) being electrically connected to the circuit board (4), characterized in that: The handle (1) is provided with a first connecting seat (12), the first connecting seat (12) is provided with a first thread (121), the replacement head (2) is provided with a second connecting seat (22), the second connecting seat (22) is provided with a second thread (221) that matches the first thread (121), the first connecting seat (12) and the second connecting seat (22) are plugged in and engaged, and the first thread (121) and the second thread (221) can be tightened relative to each other to achieve locking, the terminal block (11) is rotatably located in the middle of the first connecting seat (12) and is provided with a terminal hole (111) for inserting the terminal post (21), and the terminal post (21) is located on the second connecting seat (22).

2. The replaceable head hair styling tool according to claim 1, characterized in that: The handle (1) is also provided with a blocking member (13) for limiting the rotation angle of the replacement head (2). The replacement head (2) is provided with a blocking surface (23) that cooperates with the blocking member (13). When the blocking surface (23) rotates to the blocking member (13), it can abut against the blocking member (13) to form a rotation limit.

3. The replaceable head hair styling tool according to claim 2, characterized in that: The blocking member (13) is a blocking block, and a positioning groove (131) is provided on the top of the blocking block. The replacement head (2) is provided with a positioning block (24) located at the positioning groove (131) and is tightened and positioned therewith.

4. The replaceable head hair styling tool according to claim 3, characterized in that: The blocking block is inclined to one side of the blocking surface to form a guide surface (132), and the bottom of the positioning block (24) is arc-shaped.

5. A replaceable head hair styling tool according to claim 1, characterized in that: The handle (1) is provided with a rotating disk (14) that can rotate relative to the handle (1) and a drive motor (15) that drives the rotating disk (14) to rotate. The first connecting seat (12) is provided with an extension plate (122). The handle (1) is provided with a limiting plate (16). The extension plate (122) and the limiting plate (16) are spaced apart to form a rotating cavity. The rotating disk (14) extends into the rotating cavity. The rotating disk (14) is also provided with a barb (141).

Images