Automatic opening hair clip

Abstract

The invention relates to a self-opening hair clip comprising a first clip body (1), a second clip body (2), and a helical clutch shaft (3). This shaft is pivotally mounted between the bodies (2, 3) and is capable of providing the spring force necessary for their automatic opening. The shaft (3) comprises a first shaft body, a second shaft body, a cover piece (33), an elastic telescopic torsion element, and a shaft (35). When the user simultaneously presses on the clip bodies (2, 3), the shaft (3) is capable of performing a multi-stage closing and clamping operation. When the user simultaneously presses on both ends of the shaft (3), the torsion element is capable of automatically opening the clip bodies (2, 3). Figure 2

Description

Title of the invention: Automatic opening hair clip Scope of the invention

[0001] The present invention relates to a hair clip structure, in particular to an automatic opening hair clip. Context of the invention

[0002] Traditional hair clips consist of a left-hand clip body, a right-hand clip body, a stem seat, and a torsion spring. The torsion spring tightly connects the left and right-hand clip bodies to each other. To use it, the non-gripping ends of the left and right-hand clip bodies are pressed with two fingers, allowing them to open and grip the hair. To remove the hair clip from the hair, the non-gripping ends are pressed again to separate the left and right-hand clip bodies, thus removing the hair clip from the hair.

[0003] Although the operation is simple, it requires considerable effort, since significant pressure must be applied to open the left and right clamp bodies. Furthermore, the degree of clamping cannot be adjusted, which can easily damage the hair.

[0004] In light of the foregoing, providing a hair clip that solves the aforementioned problems became the objective of the present invention. Summary of the invention

[0005] To solve the aforementioned problems, the invention proposes an automatic opening hair clip, characterized in that: the automatic opening hair clip comprises a first clip body, a second clip body and a helical clutch shaft; the first clip body and the second clip body are arranged to correspond to each other and are able to rotate relative to each other to jointly grip an object; the helical clutch shaft, pivotally arranged between the first clip body and the second clip body, is able to provide a spring force for the automatic opening of the first and second clip bodies; the helical clutch shaft comprises a first shaft body, a second shaft body, a cover piece, an elastic telescopic torsion element, and a shaft;one side of the first shaft body is connected to the first gripper body, and according to the direction of the axis, is sequentially provided with a first stop piece, a first helical rack, a guide part, with a first wing-forming part at the connection with the first gripper body; one side of the second shaft body is connected to the second body; of the clamp, and according to the direction of the axis, is sequentially provided with a second stop piece, a spacer piece, a second helical rack, a sleeve, a second wing-forming part at the connection with the second clamp body; the second stop piece is located outside the first stop piece and is suitable for serving as a limit for the first stop piece; the spacer piece is suitable for receiving the first stop piece and the first helical rack, allowing them to move along the axis, according to it; the first toothed part of the first helical rack is located on the side of the first shaft body away from the first wing-forming part; the second toothed part of the second helical rack is located on the side of the second shaft body away from the second wing-forming part;the first toothed part and the second toothed part are positioned so as to correspond and are able to mesh with each other; the cover piece, positioned at the free end of the guide part, corresponds to the sleeve and is able to fit onto the sleeve, one side corresponding to the free end of the first wing-forming part being provided with a third wing-forming part which is able to be positioned on the first wing-forming part; the elastic telescopic torsion element is located between the sleeve and the cover piece, the two ends being respectively in contact with the sleeve and the cover piece, to use the force of the spring so as to provide the meshing force between the first helical rack and the second helical rack, allowing the helical clutch shaft to disengage during pressing;The shaft passes through the first stop piece, the second stop piece, goes past the spacer piece, the second helical rack, and is positioned at the upper end of the sleeve.

[0006] According to another aspect of the invention, the sleeve has an inner lower surface, corresponding to the elastic telescopic torsion element, is further provided with a first connecting groove for positioning and connecting the corresponding end of the elastic telescopic torsion element; the inner lower surface of the sleeve, corresponding to the elastic telescopic torsion element, is also provided with a second connecting groove for positioning and connecting the corresponding end of the elastic telescopic torsion element.

[0007] According to another aspect of the invention, the connection between the first gripper body and the first shaft body includes a first slot for engagement with and positioning of the first wing-forming part, and the first gripper body, at the location corresponding to the second stop piece, is further equipped with a first pressure piece; the connection between the second gripper body and the second shaft body has a second slot for engagement with and positioning of the second wing-forming part, and the second gripper body, in the location corresponding to the cover piece, also presents a second pressure piece.

[0008] According to another aspect of the invention, at the ends of the first slot away from the first shaft body, a first positioning block is provided to engage and position the first wing-forming part; at the ends of the second slot away from the second shaft body, a second positioning block is provided to engage with the second wing-forming part and position it.

[0009] According to another aspect of the invention, the elastic telescopic torsion element, at the level of its parts of engagement with the first and second connecting grooves, has a torsion section, which is able to rotate synchronously with the respective first connecting groove and second connecting groove.

[0010] According to another aspect of the invention, at the level of the engagement between the first wing-forming part and the third wing-forming part, a first engagement part is recessed, and the third wing-forming part corresponding to the first engagement part is provided with a second engagement part intended to engage with the first engagement part and to position the latter.

[0011] According to another aspect of the invention, the first engagement part on a side corresponding to the second engagement part has at least one positioning hole; and the second engagement part corresponding to the positioning hole is provided with a positioning pin suitable for being engaged in the positioning hole.

[0012] Specific effects of the invention: when using this invention, to remove the hair clip from the hair, it is sufficient to press on both sides of the helical clutch shaft, which causes the automatic opening and separation of the first and second clip bodies, thus facilitating the easy removal of the hair clip.

[0013] When clamping hair, simply closing the first and second clamp bodies will clamp the hair. The helical clutch shaft allows for tension adjustment, making it very convenient to use.

[0014] The helical clutch shaft, composed of the first shaft body, the second shaft body, the cover piece, the elastic telescopic torsion element and the shaft, has a modular structure, is able to engage and disengage efficiently, without accidentally opening during use, and is able to easily tighten and open automatically, making it convenient and effortless. Brief description of the drawings

[0015] Fig. 1 is a perspective view of the invention;

[0016] [Fig.2] is an exploded view of [Fig.1];

[0017] Fig. 3 is an exploded view of the helical clutch shaft according to the invention;

[0018] Figure 4 is another perspective view of the helical clutch shaft of the invention;

[0019] The [Fig.5] is a diagram of the invention in the closed position;

[0020] The [Fig.6] is an action diagram of the helical clutch shaft of the invention in the closed position;

[0021] The [Fig.7] is a diagram of the invention in the automatic opening position;

[0022] The [Fig.8] is an action diagram of the helical clutch shaft according to the invention in the automatic opening position. Detailed description of the implementation methods

[0023] Referring to Figures 1 to 8, it appears that a self-opening hair clip 100 is provided, comprising a first clip body 1, a second clip body 2, and a helical clutch shaft 3. The first clip body 1 and the second clip body 2 are arranged to correspond and are capable of rotating relative to each other to jointly grip an object. The helical clutch shaft 3 pivots between the first clip body 1 and the second clip body 2, being capable of providing the spring force necessary for the automatic opening of the first clip body 1 and the second clip body 2. The helical clutch shaft 3 comprises a first shaft body 31, a second shaft body 32, a cover piece 33, an elastic telescopic torsion element 34, and a shaft 35.One side of the first shaft body 31 is connected to the first gripper body 1 and is sequentially provided with a first stop piece 311, a first helical rack 312, a guide portion 313, with a first winged portion 314 at the connection to the first gripper body 1. One side of the second shaft body 32 is connected to the second gripper body 2 and is sequentially provided with a second stop piece 321, a spacer piece 322, a second helical rack 323, a sleeve 324, with a second winged portion 325 at the connection to the second gripper body 2. The second stop piece 321 is located outside the first stop piece 311 and acts as a restrictor for the first stop piece 311. The spacer piece 322 is adapted to receive the first stop piece 311 and the first helical rack 312, allowing them to move along the axis, according to it.The first toothed part 3121 of the first helical rack 312 is positioned on the side of the first shaft body 31 away from the first wing-forming part 314. The second. The toothed portion 3231 of the second helical rack 323 is positioned on the side of the second shaft body 32 away from the second wing-forming portion 325. The first toothed portion 3121 and the second toothed portion 3231 are positioned correspondingly and are able to engage with each other. The cover piece 33 is positioned at the free end of the guide portion 313, corresponding to the sleeve 324, and can fit onto it, with one side corresponding to the free end of the first wing-forming portion 314, provided with a third wing-forming portion 331 which is able to be positioned on the first wing-forming portion 314.The elastic telescopic torsion element 34 is positioned between the sleeve 324 and the cover piece 33, with its two ends pressing against the sleeve 324 and the cover piece 33 respectively, to use the spring force to provide the meshing force between the first helical rack 312 and the second helical rack 323, allowing the helical clutch shaft 3 to disengage during pressure. The shaft 35 passes through the first stop piece 311, the second stop piece 321, passes beyond the spacer piece 322, the second helical rack 323, and is positioned at the upper end of the sleeve 324.

[0024] The first clip body 1 and the second clip body 2 are clamping structures, as shown in [Fig. 1], primarily designed to hold hair. They can be made from various hard or elastic materials such as plastic, rubber, wood, ceramic, metal, etc. This broadens the scope of the invention. For example, when made from durable, shape-retaining materials such as metal, ceramic, or wood, the durability and shape variability of the invention are improved. When made from elastic materials such as plastic or rubber, it is suitable for effectively protecting hair.

[0025] Furthermore, the first helical rack 312 and the second helical rack 323 move step-by-step forward in conjunction with the spring force of the elastic telescopic torsion element 34, making the clamping process of the invention very smooth and easy to implement without jamming. As shown in Figures 5 and 6, when the user releases the clamp, the reaction force or spring force generated by the clamped object pushes the first clamp body 1 and the second clamp body 2 towards the opening. The stepped structure of the helical clutch shaft 3, when subjected to the thrust force of the reverse movement, generates very strong resistance to the reverse movement.This resistance comes from the structural characteristics of the first helical rack 312 and the second helical rack 323, as well as from the spring force of the elastic telescopic torsion element 34, preventing the clutch shaft. helical 3 to disengage and open. The more intense the clamping, the more points of engagement there are, and the greater the resistance to reverse movement, thus providing the helical clutch shaft 3 with optimal engagement force and anti-disengagement efficiency.

[0026] In addition, the elastic telescopic torsion element 34 is enclosed inside the sleeve 324 and the cover piece 33, being isolated from external factors (such as hair, water, hair gel and other contaminants), allowing for an aesthetic and protective effect.

[0027] In addition, although not shown in the figures, the first clamp body 1 and the second clamp body 2 may have decorative structures placed at any position on their external surfaces, such as rhinestones, reliefs or prints.

[0028] As illustrated in Figures 5 and 6, when using this invention, it is sufficient to press on the sides of the first clamp body 1 and the second clamp body 2 to rotate and gradually tighten. Users can control the degree of pressure and tightening according to their needs. At this point, with reference to a portion of [Fig. 3], although not shown in Figures 5 and 6, the torsion sections 341 at both ends of the telescopic torsional elastic element 34 will be compressed. The restoring force of the middle portion of the telescopic torsional elastic element 34 will automatically apply pressure to the helical clutch shaft 3.The first helical rack 312 and the second helical rack 323 are able to engage and position themselves against each other, preventing their forced opening by the opposite spring force of the torsion sections 341 at both ends of the elastic telescopic torsion element 34 and the opposite force applied by the clamped object, thus completing the clamping operation.

[0029] As shown in Figures 7 and 8, when the user wishes to remove the gripper according to the invention, they simply need to press on the first pressure piece 12 and the second pressure piece 22. This action causes the separation (disengagement) of the first helical rack 312 and the second helical rack 323. With reference to [Fig. 3], although not shown in Figures 7 and 8, the middle portion of the elastic torsional telescopic element 34 will be compressed. The opposing spring force of the torsional sections 341 at both ends of the elastic telescopic torsional element 34 will automatically cause the helical clutch shaft 3 to open, resulting in the opening of the first gripper body 1 and the second gripper body 2.

[0030] As can be seen in [Fig. 3], the lower inner surface of the sleeve 324 corresponding to the elastic telescopic torsion element 34 has a first connecting groove 3241 for positioning and connecting the corresponding end of the elastic telescopic torsion element 34. Similarly, the lower inner surface of the sleeve 324 corresponding to the elastic telescopic torsion element 34 has a second connecting groove 332 for positioning and connecting the corresponding end of the elastic telescopic torsion element 34. Thus, the application of the first connecting groove 3241 and the second connecting groove 332 allows a stable connection of the elastic telescopic torsion element 34, allowing it to expand, twist and act smoothly.

[0031] As illustrated in Figures 1 and 2, the connection between the first gripper body 1 and the first shaft body 31 is equipped with a first slot 11 for engagement and positioning with the first wing-forming part 314. The first gripper body 1, at the location corresponding to the second end piece 321, is further equipped with a first pressure piece 12. The connection between the second gripper body 2 and the second shaft body 32 has a second slot 21 for engaging with and positioning the second wing-forming part 325. The second gripper body 2, at the location corresponding to the cover piece 33, is further equipped with a second pressure piece 22. Thus, the modular design of the first slot 11 and the second slot 21 facilitates the assembly of the first gripper body 1, the second gripper body 2, and the helical clutch shaft 3.Furthermore, the configuration of the first pressure piece 12 and the second pressure piece 22 not only facilitates pressing, but also plays a role in limiting the position of the helical clutch shaft 3.

[0032] As shown in Figures 1 and 2, at the ends of the first slot 11, located away from the first shaft body 31, a first positioning block 13 is provided to engage with and position the first wing-forming part 314. Similarly, at the ends of the second slot 21, located away from the second shaft body 32, a second positioning block 23 is provided to engage with and position the second wing-forming part 325. Consequently, through the interaction of the first positioning block 13 and the second positioning block 23, effective positioning of the corresponding first wing-forming part 314 and second wing-forming part 325 is achieved. In combination with adhesive, a quick and stable assembly of the first gripper body 1, the second gripper body 2, and the helical clutch shaft 3 can be achieved.

[0033] With reference to [Fig. 3], it appears that the elastic telescopic torsion element 34 is connected at its positioning points to the first connecting groove 3241 and the second connecting groove 333, and is further provided with a torsion section 341. The torsion section 341 is capable of rotating synchronously with the corresponding first connecting groove 3241 and second connecting groove 332. Thus, thanks to the torsion section 341, the elastic telescopic torsion element 34 is capable of expanding, twisting and providing a smooth spring force to the helical clutch shaft 3, performing the functions of engagement and disengagement while preventing disengagement.

[0034] As illustrated in Figures 3 and 4, the engagement part between the first wing-forming part 314 and the third wing-forming part 331 is recessed so as to form a first engagement part 315, while the third wing-forming part 331 corresponding to the first engagement part 315 is provided with a second engagement part 333 which is able to engage positionally with the first engagement part 315. As a result, this configuration ensures a stable and easy assembly between the first wing-forming part 314 and the third wing-forming part 331.

[0035] As illustrated in [Fig.3], the side of the first engagement part 315 corresponding to the second engagement part 333 has at least one positioning hole 316; and the second engagement part 333 corresponding to the positioning hole 316 is equipped with a positioning pin 334 which is able to engage in the positioning hole 316. Therefore, this configuration ensures an infallible and rapid positioning engagement between the first engagement part 315 and the second engagement part 333.

[0036] The above descriptions serve as examples of implementation and are not intended to limit the scope of the rights conferred by this patent application. All modifications and variations that do not depart from the scope of this patent application as defined by the appended claims should always fall within the scope of protection for this invention.

Claims

1. Demands Automatic opening hair clip, characterized by the fact that it includes a first gripper body (1), a second gripper body (2) and a helical clutch shaft (3); in which the first clamp body (1) and the second clamp body (2) are arranged to correspond to each other and are able to rotate relative to each other to jointly clamp an object; the helical clutch shaft (3), pivotally arranged between the first gripper body (1) and the second gripper body (2), is capable of providing a spring force for the automatic opening of the first and second gripper bodies; the helical clutch shaft comprises a first shaft body (31), a second shaft body (32), a cover piece (33), an elastic telescopic torsion element (34) and a shaft (35); one side of the first shaft body (31) is connected to the first clamp body (1), and according to the direction of the axis, is sequentially provided with a first stop piece (311), a first helical rack (312), a guide part (313), with a first part (314) forming a wing at the connection with the first clamp body; one side of the second shaft body (32) is connected to the second clamp body (2) and, according to the direction of the axis, is sequentially provided with a second stop piece (321), a spacer piece (322), a second helical rack (323), a sleeve (324), with a second part (325) forming a wing at the connection with the second clamp body; the second stop piece (321), located outside the first stop piece (311), is suitable to serve as a limit for the first stop piece; the spacer piece (322) is suitable for receiving the first stop piece (311) and the first helical rack (312), allowing them to move along the axis, according to it; a first toothed part (3121) of the first helical rack (312) is placed on the side of the first shaft body (31) away from the first wing-forming part (314);

2.

3. a second toothed part (3231) of the second helical rack (323) is positioned on the side of the second shaft body (32) away from the second wing-forming part (325); the first and second toothed parts (3121, 3231) are positioned so as to correspond to each other and are able to mesh with each other; the cover piece (33), positioned at the free end of the guide part (313), corresponds to the sleeve (324) and is adapted to fit onto the sleeve (324), one side corresponding to the free end of the first wing-forming part (314) being provided with a third wing-forming part (331) which is adapted to be positioned on the first wing-forming part (334); the elastic telescopic torsion element (34) is located between the sleeve (324) and the cover piece (33), the two ends being respectively in contact with the sleeve and the cover piece, to use the spring force so as to provide the meshing force between the first helical rack (312) and the second helical rack (323), allowing the helical clutch shaft (3) to disengage during pressing;The shaft (35) passes through the first stop piece (311), the second stop piece (321), passes beyond the spacer piece (322), the second helical rack (323), and is positioned at the upper end of the sleeve (324). Automatic hair clip according to claim 1, characterized in that the sleeve (324) has an inner lower surface corresponding to the elastic telescopic torsion element (34), is further provided with a first connecting groove (3241) for positioning and connecting the end of the elastic telescopic torsion element (34); the inner lower surface of the sleeve (324) corresponding to the elastic telescopic torsion element (34) is also provided with a second connecting groove (332) for positioning and connecting the corresponding end of the elastic telescopic torsion element (34). Automatic hair clip according to claim 2, characterized in that the connection between the first clip body (1) and the first shaft body (31) includes a first slot (11) for engagement with the first wing-forming part and positioning thereof, and the first clamp body, at the location corresponding to the second stop piece, is further equipped with a first pressure piece; the connection between the second clamp body (2) and the second shaft body (32) includes a second slot (21) for engagement with the second wing-forming part and positioning thereof (325), and the second clamp body (1) at the location corresponding to the second stop piece (321) is further equipped with a first pressure piece (12); the connection between the second clamp body (2) and the second shaft body (32) has a second slot (21) for engagement with the second wing-forming part (325) and positioning thereof, and the second clamp body (2), at the location corresponding to the cover piece (33), further has a second pressure piece (22).

4. Automatic opening hair clip according to claim 3, characterized in that at the ends of the first slot (11) away from the first shaft body (31), a first positioning block (13) is provided to engage and position the first wing-forming part (314); at the ends of the second slot (21) away from the second shaft body (32), a second positioning block (23) is provided to engage with the second wing-forming part and position the latter (325).

5. Automatic opening hair clip according to claim 4, characterized in that the elastic telescopic torsion element (34), at the level of its parts of engagement with the first connecting groove (3241) and the second connecting groove (334), has a torsion section (341), which is able to rotate synchronously with the respective first connecting groove (3241) and second connecting groove (332).

6. Automatic opening hair clip according to claim 5, characterized in that at the level of the engagement between the first wing-forming part (314) and the third wing-forming part (331), a first engagement part (315) is recessed, and the third wing-forming part (331) corresponding to the first engagement part (315) is provided with a second engagement part (333) intended to engage with the first engagement part (315) and to position itself thereon.

7. Automatic opening hair clip according to claim 6, characterized in that the first engagement part (315) on a side corresponding to the second engagement part (333) has at least one positioning hole (316), and the second engagement part (333) corresponding to the positioning hole (316) is provided with a positioning pin (334) suitable for being engaged in the positioning hole (316).

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