A hair straightener with improved upper and lower handle connection structure

Abstract

The utility model relates to the technical field of hair straighteners, and in particular to a hair straightener with an improved upper and lower handle connection structure, comprising a first handle, a second handle and a connecting shaft, wherein the front parts of the first handle and the second handle are both provided with heating element components that can be butted and matched with each other, and metal protective shells are installed at the rear ends of the first handle and the second handle, wherein the metal protective shells have an embedded shaft connecting piece extending to the inner side of the first handle and the second handle, and the shaft connecting pieces of the first handle and the second handle are both connected to the connecting shaft, so that the first handle and the second handle can swing relative to each other along the connecting shaft; by providing the metal protective shell on the basis of the first handle and the second handle, the first handle and the second handle can play a role of strengthening and consolidating at the position of the rotation connection, and the strength of the rear ends of the first handle and the second handle is strengthened, so that the hair straightener is more stable during frequent swinging or long-term use, and will not be broken or loose at the rotation position.

Description

Technical Field

[0001] The utility model relates to the technical field of hair straighteners, in particular to a hair straightener with an improved upper and lower handle connection structure. Background Art

[0002] A hair straightener is an electrical device used to straighten hair. It heats the heating element of the hair straightener, usually MCH, PTC or heating wire, through electric current, and then transfers the heat to the heat-conducting and hair-friendly materials such as aluminum plates and ceramic plates. After clamping the hair, the hair is heated, softened, and finally cooled, thereby achieving the effect of straightening hair; existing hair straighteners can not only straighten hair, but also be used to curl hair to meet the needs of different hairstyles.

[0003] The existing hair straighteners basically adopt two handle structures that can be clamped up and down in structural design. The rear ends of the two handle structures are rotatably connected, and heating elements are arranged at the front ends of the two handles. Generally, the handles are made of injection molding materials. During use, the hair needs to be clamped and loosened frequently, so the two handles need to be swung frequently. After a period of use, the handles are prone to be broken or loosened at the rotation position, and the docking position of the heating element between the two handles after relaxation will be offset, affecting the hair pulling effect; in particular, in order to facilitate users to open the handles, a spring structure will be configured between the two handles. In the process of loosening the hair, the spring structure will directly open the two handles. At this time, the impact force of the spring will damage the rotation position of the two handles, thereby accelerating the occurrence of the handles being broken; in this regard, it is necessary to propose an improved technical solution to solve the above problems. Utility Model Content

[0004] The utility model aims to overcome the above-mentioned shortcomings and provide a technical solution that can solve the above-mentioned problems.

[0005] A hair straightener with an improved upper and lower handle connection structure comprises a first handle, a second handle and a connecting shaft, wherein the front parts of the first handle and the second handle are both provided with heating element components that can be docked and matched with each other, and the rear ends of the first handle and the second handle are both installed with metal protective shells, wherein the metal protective shells have an embedded shaft connecting piece extending to the inner side of the first handle and the second handle, and the shaft connecting pieces of the first handle and the second handle are both connected to the connecting shaft, so that the first handle and the second handle can swing relative to each other along the connecting shaft; and an elastic structure is also provided between the first handle and the second handle, and the first handle and the second handle are kept in an open state by the elastic structure.

[0006] Preferably, a tail body is provided at the rear end of the second handle, and the tail body is provided with an upper limit portion corresponding to the first handle, and the opening angle range between the first handle and the second handle is limited by the upper limit portion.

[0007] Preferably, an axis connecting block is formed along the inner side of the rear end of the first handle, and an axis connecting seat is formed along the inner side of the rear end of the second handle and docked on both sides of the axis connecting block. The axis connecting piece of the first handle is embedded in the axis connecting block, and the axis connecting piece of the second handle is embedded in the axis connecting seat, and the connecting shaft is fixed on the axis connecting seat, and the axis connecting block is rotatably connected to the connecting shaft.

[0008] Preferably, a power supply line assembly is connected to the tail body, the first handle and the second handle are both hollow shell structures, and a wire passage opening connected to the interior of the first handle is opened on the shaft connecting block, and the tail body and the second handle are an integrally formed structure, so that the electrical connection wiring between the power supply line assembly and the heating element assembly can be set inside the first handle and the second handle.

[0009] Preferably, a fixed shell which is an integral structure with the shaft connecting seat is also provided at the rear position of the second handle, and a fixed socket which is an integral structure with the shaft connecting block is also provided at the rear position of the first handle. The fixed socket is docked with the rear end of the fixed shell, and the fixed shell is integrated with or even has a toggle member which is inserted into the fixed socket.

[0010] Preferably, an elastic clamping block is provided on the upper part of the toggle member, an opening clamping slot and a closing clamping slot corresponding to the elastic clamping block are provided on the top of the fixed shell, a protrusion docking with the fixed socket is provided at the rear end of the toggle member, and a push key is provided on the side of the toggle member, which is slidably connected to the outer wall of the fixed shell.

[0011] Preferably, the elastic structure includes a spring hole opened at the lower end of the fixed socket, a spring sleeve arranged between the fixed shell and the shaft connecting seat, and a return spring connected between the spring hole and the spring sleeve.

[0012] Preferably, the outer sides of the first handle and the second handle are arc surfaces, and an outer groove structure matching the metal protective shell is provided at the rear end position of the outer sides of the first handle and the second handle, the metal protective shell is sleeved on the outer groove structure, and the metal protective shell is screwed to the outer groove structure.

[0013] Preferably, two shaft connecting parts are formed along the inner side of the metal protective shell, and the two shaft connecting parts corresponding to the first handle are butted between the two shaft connecting parts corresponding to the second handle.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] By arranging a metal protective shell on the basis of the first handle and the second handle, the first handle and the second handle can play a role of strengthening and consolidating at the position where they are rotatably connected, thereby enhancing the strength of the rear ends of the first handle and the second handle, making the hair straightener more stable during frequent swinging or long-term use, and will not be broken or loose at the rotation position.

[0016] By adopting an embedded extension setting to extend the shaft connecting part inside the first handle and the second handle, the fixation between the metal protective shell and the first handle and the second handle is made more secure, so that the force can be better applied to the metal protective shell during the rotation of the first handle and the second handle.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 It is a structural schematic diagram of the utility model in a closed state;

[0020] Figure 2 It is a structural schematic diagram of the utility model in an expanded state;

[0021] Figure 3 It is a partial cross-sectional view of the utility model in an expanded state;

[0022] Figure 4 It is a partial cross-sectional view of the utility model in a closed state;

[0023] Figure 5 It is a schematic diagram of the explosion structure of the utility model;

[0024] Figure 6 It is a schematic cross-sectional structure diagram of the second handle of the utility model at the position of the fixed shell.

[0025] The reference numerals and names in the figures are as follows:

[0026] A first handle 10, an axis connecting block 11, a fixed socket 12, a second handle 20, a tail body 21, an upper limit portion 22, an axis connecting seat 23, a power supply line assembly 24, a line port 25, a fixed shell 26, a connecting shaft 30, a heating element assembly 40, a metal protective shell 50, an axis connecting member 51, an outer groove structure 52, an elastic structure 60, a spring hole 61, a spring sleeve 62, a reset spring 63, a toggle member 70, an elastic clamping block 71, an opening clamping slot 72, a closing clamping slot 73, a protrusion 74, and a push key 75. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-6 In an embodiment of the utility model, a hair straightener with an improved upper and lower handle connection structure includes a first handle 10, a second handle 20 and a connecting shaft 30. The front parts of the first handle 10 and the second handle 20 are both provided with a heating element assembly 40 that can be docked and matched with each other. The rear ends of the first handle 10 and the second handle 20 are both installed with a metal protective shell 50. The metal protective shell 50 has an embedded shaft connecting piece 51 extending to the inner side of the first handle 10 and the second handle 20. The shaft connecting pieces 51 of the first handle 10 and the second handle 20 are both connected to the connecting shaft 30, so that the first handle 10 and the second handle 20 can swing relative to each other along the connecting shaft 30; an elastic structure 60 is also provided between the first handle 10 and the second handle 20, and the first handle 10 and the second handle 20 are kept in an open state by the elastic structure 60.

[0029] The utility model sets a metal protective shell 50 at the rear end of the first handle 10 and the second handle 20, and extends and forms an axis connecting member 51 based on the metal protective shell 50 for rotatably connecting the first handle 10 and the second handle 20, and sets a connecting shaft 30 to connect to the axis connecting member 51. The connection method can be that both the first handle 10 and the second handle 20 are rotatably connected to the axis connecting member 51, or one of the first handle 10 and the second handle 20 is rotatably connected to the axis connecting member 51, and the other is fixedly connected to the axis connecting member 51, so as to realize the purpose of rotatably connecting the first handle 10 and the second handle 20.

[0030] By providing the metal protective shell 50 on the basis of the first handle 10 and the second handle 20, the first handle 10 and the second handle 20 can be reinforced and consolidated at the position of the rotation connection, thereby enhancing the strength of the rear ends of the first handle 10 and the second handle 20, so that the hair straightener is more stable during frequent swinging or long-term use. Even if the elastic structure 60 may generate a large reverse impact force, it can be ensured that the first handle 10 and the second handle 20 will not be broken or loosened at the rotation position.

[0031] In addition, by adopting an embedded extension setting to extend the shaft connecting member 51 to the inner side of the first handle 10 and the second handle 20, the fixation between the metal protective shell 50 and the first handle 10 and the second handle 20 is made more secure, so that the force can be better applied to the metal protective shell 50 during the rotation of the first handle 10 and the second handle 20.

[0032] See also Figure 3-6 In the embodiment of the utility model, a tail body 21 is provided at the rear end of the second handle 20, and the tail body 21 is provided with an upper limit portion 22 corresponding to the first handle 10, and the opening angle range between the first handle 10 and the second handle 20 is limited by the upper limit portion 22; in order to further improve the strength and stability of the connection position between the first handle 10 and the second handle 20, an axis connection block 11 is formed along the inner side of the rear end of the first handle 10, and an axis connection seat 23 that is docked on both sides of the axis connection block 11 is formed along the inner side of the rear end of the second handle 20, and the axis connection member 51 of the first handle 10 is embedded in the axis connection block 11, and the axis connection member 51 of the second handle 20 is embedded in the axis connection seat 23, and the connecting shaft 30 is fixed on the axis connection seat 23, and the axis connection block 11 is rotatably connected to the connecting shaft 30; through this arrangement, the matching tightness between the axis connection member 51 and the first handle 10 and the second handle 20 is greatly improved, so that the first handle 10 and the second handle 20 are more stable at the rotation position. In addition, utilizing the structure of the tail body 21, a power supply line assembly 24 is connected to the tail body 21, the first handle 10 and the second handle 20 are both hollow shell structures, and a wire passage 25 connected to the interior of the first handle 10 is opened on the shaft connecting block 11. The tail body 21 and the second handle 20 are an integrally formed structure, so that the electrical connection wiring between the power supply line assembly 24 and the heating element assembly 40 can be set inside the first handle 10 and the second handle 20.

[0033] See also Figure 3 , Figure 4 and Figure 6In the embodiment of the utility model, a fixed shell 26 which is an integral structure with the shaft connecting seat 23 is further provided at the rear position of the second handle 20, and a fixed socket 12 which is an integral structure with the shaft connecting block 11 is further provided at the rear position of the first handle 10. The fixed socket 12 is docked with the rear end of the fixed shell 26, and the fixed shell 26 is integrated with or even has a toggle member 70 inserted into the fixed socket 12; an elastic clamping block 71 is provided on the upper part of the toggle member 70, and an opening clamping slot 72 and a closing clamping slot 73 corresponding to the elastic clamping block 71 are provided on the top of the fixed shell 26; a protrusion 74 which is docked with the fixed socket 12 is provided at the rear end of the toggle member 70, and a push key 75 is provided on the side of the toggle member 70, and the push key 75 slides The push key 75 is connected to the outer wall of the fixed shell 26; when in use, by pushing the push key 75, the protrusion 74 on the toggle member 70 extends into the interior of the fixed shell 26, so that the protrusion 74 is separated from the fixed socket 12, and the first handle 10 loses the restriction of the protrusion 74 and can be opened by the elastic structure 60. When not in use, the first handle 10 and the second handle 20 are closed, so that the fixed socket 12 is docked to the rear end of the fixed shell 26. At this time, the push key 75 is pushed to extend the protrusion 74 into the fixed socket 12, so that the fixed socket 12 and the fixed shell 26 are snap-fitted, so that the first handle 10 and the second handle 20 are kept in a closed state. Through this arrangement, the hair straightener can be easily stored.

[0034] See also Figure 3-6 In the embodiment of the utility model, the elastic structure 60 includes a spring hole 61 opened at the lower end of the fixed socket 12, a spring sleeve 62 arranged between the fixed shell 26 and the shaft connecting seat 23, and a return spring 63 connected between the spring hole 61 and the spring sleeve 62. It can make full use of the above structure to further set the elastic structure 60, so that the overall structure of the rear end of the hair straightener is more compact.

[0035] See also Figure 1-5 In the embodiment of the utility model, the outer sides of the first handle 10 and the second handle 20 are arc surfaces, and an outer groove structure 52 matching the metal protective shell 50 is provided at the rear end position of the outer sides of the first handle 10 and the second handle 20. The metal protective shell 50 is sleeved on the outer groove structure 52, and the metal protective shell 50 is screwed to the outer groove structure 52. Through this arrangement, the metal protective shell 50 can protect the outer side surface of the handle rotation connection position. The structural arrangement can integrate the rear end of the handle, so that the metal protective shell 50 can have a certain thickness without protruding from the outside of the handle, thereby improving the strength of the hair straightener at the rotation position and achieving a certain decorative effect.

[0036] See also Figure 5-6In the embodiment of the utility model, the metal protective shell 50 is formed with two axial connecting parts 51 along the inner side, and the two axial connecting parts 51 corresponding to the first handle 10 are docked between the two axial connecting parts 51 corresponding to the second handle 20, which can further improve the connection stability between the first handle 10 and the second handle 20, so that no looseness will occur between the first handle 10 and the second handle 20.

[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A hair straightener with an improved upper and lower handle connection structure, comprising a first handle, a second handle and a connecting shaft, wherein the front of the first handle and the second handle are both provided with a heating element assembly that can be docked with each other, characterized in that: A metal protective shell is installed at the rear end of the first handle and the second handle. The metal protective shell has an embedded shaft connecting piece extending to the inner side of the first handle and the second handle. The shaft connecting pieces of the first handle and the second handle are connected to the connecting shaft, so that the first handle and the second handle can swing relative to each other along the connecting shaft; an elastic structure is also arranged between the first handle and the second handle, and the first handle and the second handle are kept in an open state by the elastic structure.

2. A hair straightener with an improved upper and lower handle connection structure according to claim 1, characterized in that: A tail body is arranged at the rear end of the second handle, and the tail body is provided with an upper limit portion corresponding to the first handle, and the opening angle range between the first handle and the second handle is limited by the upper limit portion.

3. A hair straightener with an improved upper and lower handle connection structure according to claim 2, characterized in that: An axis connecting block is formed along the inner side of the rear end of the first handle, and an axis connecting seat is formed along the inner side of the rear end of the second handle, which is docked on both sides of the axis connecting block. The axis connecting piece of the first handle is embedded in the axis connecting block, and the axis connecting piece of the second handle is embedded in the axis connecting seat, and the connecting shaft is fixed on the axis connecting seat, and the axis connecting block is rotatably connected with the connecting shaft.

4. A hair straightener with an improved upper and lower handle connection structure according to claim 3, characterized in that: A power supply line assembly is connected to the tail body, the first handle and the second handle are both hollow shell structures, and a wire passage opening connected to the interior of the first handle is opened on the shaft connecting block. The tail body and the second handle are an integrally formed structure, so that the electrical connection wiring between the power supply line assembly and the heating element assembly can be set inside the first handle and the second handle.

5. A hair straightener with an improved upper and lower handle connection structure according to claim 3, characterized in that: A fixed shell which is an integral structure with the shaft connecting seat is also provided at the rear position of the second handle, and a fixed socket which is an integral structure with the shaft connecting block is also provided at the rear position of the first handle. The fixed socket is docked with the rear end of the fixed shell, and the fixed shell is integrated with or even has a toggle member which is inserted into the fixed socket.

6. A hair straightener with an improved upper and lower handle connection structure according to claim 5, characterized in that: An elastic clamping block is arranged on the upper part of the toggle member, an opening clamping slot and a closing clamping slot corresponding to the elastic clamping block are arranged on the top of the fixed shell, a protrusion docking with the fixed socket is arranged at the rear end of the toggle member, a push key is arranged on the side of the toggle member, and the push key is slidably connected to the outer wall of the fixed shell.

7. A hair straightener with an improved upper and lower handle connection structure according to claim 5, characterized in that: The elastic structure comprises a spring hole opened at the lower end of the fixed socket, a spring sleeve arranged between the fixed shell and the shaft connecting seat, and a reset spring connected between the spring hole and the spring sleeve.

8. A hair straightener with an improved upper and lower handle connection structure according to any one of claims 1 to 7, characterized in that: The outer sides of the first handle and the second handle are arc surfaces, and an outer groove structure matching the metal protective shell is opened at the rear end position of the outer sides of the first handle and the second handle. The metal protective shell is sleeved on the outer groove structure, and the metal protective shell is screwed to the outer groove structure.

9. A hair straightener with an improved upper and lower handle connection structure according to claim 8, characterized in that: Two shaft connecting parts are formed along the inner side of the metal protective shell, and the two shaft connecting parts corresponding to the first handle are butted between the two shaft connecting parts corresponding to the second handle.

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