Ultrasonic beautifying head with function of preventing film from falling off

Abstract

The invention provides an ultrasonic beautifying head with a membrane falling prevention function. The ultrasonic beautifying head is provided with an inner cavity, a transducer is arranged in the inner cavity and can generate ultrasonic waves through mechanical vibration, an ultrasonic membrane is attached to the surface of the beautifying head to block the inner cavity, the inner cavity is filled with conducting liquid to conduct the ultrasonic waves generated by the transducer to the ultrasonic membrane, and the ultrasonic waves are transmitted to the skin surface through the ultrasonic membrane. A buffer space is arranged beside the inner cavity, a soft film with the elasticity modulus smaller than that of the ultrasonic film is arranged between the buffer space and the inner cavity for separation, and the soft film can elastically deform towards the buffer space under the pressure of the conducting liquid and retreat to make space. The transducer in the inner cavity of the ultrasonic cosmetic head generates heat to cause the temperature of the conducting liquid to rise and then the volume of the conducting liquid is expanded, and the volume expansion of the conducting liquid extrudes the soft film with smaller elastic modulus to enable the soft film to deform towards the buffer space, so that the volume of the inner cavity is increased to accommodate the expanded conducting liquid, and the extrusion of the expanded conducting liquid to the ultrasonic film is effectively slowed down.

Description

Technical Field

[0001] The present invention relates to an ultrasonic beauty instrument, and particularly to an ultrasonic beauty head. Background Art

[0002] In a traditional ultrasonic beauty head, an ultrasonic conduction liquid is filled into the inner cavity of the ultrasonic beauty head. The conduction liquid can smoothly conduct the ultrasonic waves generated by the mechanical vibration of the transducer to the ultrasonic membrane and finally act on the skin. When the transducer works, heat is generated, which causes the temperature of the conduction liquid to rise and the volume of the conduction liquid to expand. This volume expansion will directly squeeze the ultrasonic membrane at the head end of the ultrasonic head. Under long-term or frequent use, the ultrasonic membrane is likely to become loose or fall off due to continuous stress, resulting in the leakage of the conduction liquid. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an ultrasonic beauty head with an anti-membrane-falling-off function, which can effectively prevent the ultrasonic membrane at its head end from falling off.

[0004] To solve the above technical problem, the present invention provides an ultrasonic beauty head with an anti-membrane-falling-off function, which has an inner cavity. A transducer is provided in the inner cavity. The transducer can generate ultrasonic waves by mechanical vibration. An ultrasonic membrane is attached to the surface of the beauty head to seal the inner cavity. A conduction liquid is filled in the inner cavity to conduct the ultrasonic waves generated by the transducer to the ultrasonic membrane. The ultrasonic waves are transmitted to the skin surface through the ultrasonic membrane. A buffer space is provided beside the inner cavity. A soft membrane with an elastic modulus smaller than that of the ultrasonic membrane is provided between the buffer space and the inner cavity for separation. The soft membrane can elastically deform and retreat towards the buffer space to make room under the pressure of the conduction liquid.

[0005] Further, the buffer space communicates with the outside.

[0006] Further, it includes a handle and an ultrasonic probe mounted on the handle. The ultrasonic membrane is specifically attached to the head end of the ultrasonic probe. The transducer is located in the ultrasonic probe. The inner cavity includes a main cavity and an auxiliary cavity that are connected. The main cavity is located in the ultrasonic probe while the auxiliary cavity is located in the handle. The buffer space is located in the handle beside the auxiliary cavity.

[0007] Further, it includes an inner cavity cover covering the inner cavity. The inner cavity cover and the soft membrane jointly enclose the buffer space. The inner cavity cover is provided with a ventilation hole to communicate the buffer space with the outside.

[0008] Further, a soft membrane buffer groove is opened on the inner cavity cover. The soft membrane and the soft membrane buffer groove jointly enclose the buffer space. The ventilation hole is specifically provided on the soft membrane buffer groove.

[0009] Further, the inner cavity cover specifically has a membrane mounting groove at the notch of the buffer space, and the soft membrane is installed in this membrane mounting groove.

[0010] The ultrasonic beauty head provided by the present invention has a transducer in its inner cavity that generates heat, causing the temperature of the conductive liquid to rise and its volume to expand. The expanded volume of the conductive liquid squeezes the softer film with a smaller elastic modulus, causing it to deform towards the buffer space, thereby increasing the inner cavity volume to accommodate the expanded conductive liquid, effectively reducing the extrusion of the conductive liquid on the ultrasonic film after expansion. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic structural diagram of the ultrasonic beauty head;

[0012] Figure 2 is an exploded view of a partial structure of the ultrasonic beauty head (the inner cavity cover is not shown in the figure);

[0013] Figure 3 is a schematic diagram of a partial structure of the ultrasonic beauty head (the inner cavity cover is shown in the figure);

[0014] Figure 4 is a schematic diagram of the inner side of the inner cavity cover;

[0015] Figure 5 is a schematic diagram of the inner side of the inner cavity cover after installing the soft film;

[0016] Figure 6 is a partial cross-sectional view of the ultrasonic beauty head;

[0017] Figure 7 is Figure 6 a partial enlarged view of part A in the partial cross-sectional view;

[0018] Figure 8 is Figure 6 a partial enlarged view of part A after the conductive liquid expands in the partial cross-sectional view.

[0019] Reference numerals: 1, ultrasonic probe; 11, transducer; 12, ultrasonic film; 13, inner cavity; 131, main cavity; 132, sub-cavity; 14, probe through-hole; 2, handle; 21, inner wall of the handle cavity; 211, cavity wall screw hole; 212, handle through-hole; 22, inner cavity cover; 221, film installation groove; 222, soft film buffer groove; 223, cover body screw hole; 224, ventilation hole; 24, soft film; 3, conductive liquid; 4, buffer space. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following further details the present invention in conjunction with specific embodiments.

[0021] The ultrasonic beauty head is as Figure 1 shown, including a handle 2 and an ultrasonic probe 1 installed on the handle 2. An interface 25 for electrically connecting to an ultrasonic beauty instrument is provided at the rear end of the handle 2.

[0022] As Figure 2As shown, a main cavity 131 is formed inside the ultrasonic probe 1, and an auxiliary cavity 132 is formed inside the handle 2. The auxiliary cavity 132 is surrounded by the annular inner wall 21 of the handle. As Figure 3 shown, the inner cavity cover 22 covers the auxiliary cavity 132, and the inner wall 21 of the handle is as Figure 2 shown with six cavity wall screw holes 211. The inner cavity cover 22 is as Figure 4 shown and correspondingly has six cover body screw holes 223. The cavity wall screw holes 211 and the cover body screw holes 223 correspond one by one and are tightly connected with configured screws, so that the inner cavity cover 22 tightly covers the auxiliary cavity 132. As Figure 2 shown, a handle through hole 212 communicating with the auxiliary cavity 132 is formed on the inner wall 21 of the handle. Correspondingly, a probe through hole 14 communicating with the handle through hole 212 is formed on the ultrasonic probe 1. The probe through hole 14 communicates with the main cavity 131 inside the ultrasonic probe 1. The main cavity 131 is as Figure 6 shown and communicates with the auxiliary cavity 132 of the handle 2 through the probe through hole 14 and the handle through hole 212. The main cavity 131 and the auxiliary cavity 132 are connected to form the entire inner cavity 13. As Figure 6 shown, a transducer 11 capable of mechanically vibrating to generate ultrasonic waves is provided in the main cavity 131 of the ultrasonic probe 1. An ultrasonic film 12 for transmitting ultrasonic waves to the skin surface is attached to the head end of the ultrasonic probe 1. The ultrasonic film 12 is located in front of the transducer 11. The ultrasonic film 12 is attached to the head end of the ultrasonic probe 1 to block the main cavity 131 of the ultrasonic probe 1. A conductive liquid 3 capable of conducting ultrasonic waves to the ultrasonic film 12 is filled in the inner cavity 13.

[0023] The transducer 11 generates heat, causing the temperature of the conductive liquid 3 to rise and its volume to expand, squeezing the ultrasonic film 12 at the head end of the ultrasonic probe 1. To relieve the squeezing of the ultrasonic film 12 by the expanded volume of the conductive liquid 3, the inner cavity cover 22 is as Figure 4 shown, with a soft film buffer groove 222 formed on the inner side of the cover body, and as Figure 5 shown, a soft film 24 is provided to cover the soft film buffer groove 222. The inner cavity cover 22 is as Figure 4 shown with a film mounting groove 221 provided at the notch of the soft film buffer groove 222. The soft film 24 is installed in the film mounting groove 221. After the soft film 24 is installed in the film mounting groove 221, it is as Figure 7 shown and together with the soft film buffer groove 222 forms a buffer space 4. The soft film 24 separates the buffer space 4 and the inner cavity 13. See Figure 3 and Figure 4 , a ventilation hole 224 communicating with the outside of the cover body of the inner cavity cover 22 is formed on the soft film buffer groove 222. The buffer space 4 communicates with the outside through the ventilation hole 224. The elastic modulus of the soft film 24 is less than that of the ultrasonic film 12, and the soft film 24 is more likely to deform under the pressure of the conductive liquid 3. When the transducer 11 generates heat, causing the temperature of the conductive liquid 3 to rise and its volume to expand, the soft film 24 will elastically deform under the pressure of the conductive liquid 3 and yield space towards the buffer space 4 communicating with the outside, as Figure 8The volume of the inner cavity 13 is increased as shown to accommodate the expanded conductive liquid 3, reducing the extrusion pressure generated by the expansion of the conductive liquid 3, thereby slowing down the extrusion of the conductive liquid 3 against the ultrasonic membrane 12.

[0024] The above is only the implementation mode of the present invention, and does not limit the scope of patent protection. Those skilled in the art make non-substantive changes or substitutions based on the present invention, and still fall within the scope of patent protection.

Claims

1. An ultrasonic beauty head with a film-shedding prevention function, comprising an inner cavity (13), a transducer (11) arranged in the inner cavity (13), the transducer (11) being capable of mechanically vibrating to generate ultrasonic waves, an ultrasonic film (12) being attached to the surface of the beauty head to block the inner cavity (13), the inner cavity (13) being filled with a conducting liquid (3) to conduct the ultrasonic waves generated by the transducer (11) to the ultrasonic film (12), and the ultrasonic waves being transmitted to the skin surface via the ultrasonic film (12), wherein: A buffer space (4) is provided next to the inner cavity (13), and a soft film (24) having an elastic modulus smaller than that of the ultrasonic film (12) is provided between the buffer space (4) and the inner cavity (13) for spacing. The soft film (24) can elastically deform toward the buffer space (4) and retreat to make room under the pressure of the conducting liquid (3).

2. The ultrasonic beauty head according to claim 1, characterized in that: The buffer space (4) is connected to the outside.

3. The ultrasonic beauty head according to claim 1, characterized in that: The invention comprises a handle (2) and an ultrasonic probe (1) mounted on the handle (2); an ultrasonic membrane (12) is attached to the head end of the ultrasonic probe (1); a transducer (11) is located in the ultrasonic probe (1); an inner cavity (13) comprises a main cavity (131) and a secondary cavity (132) which are connected to each other; the main cavity (131) is located in the ultrasonic probe (1) and the secondary cavity (132) is located in the handle (2); and a buffer space (4) is located in the handle (2) and next to the secondary cavity (132).

4. The ultrasonic beauty head according to claim 1, characterized in that: The inner cavity cover (22) covers the inner cavity (13), the inner cavity cover (22) and the soft membrane (24) together enclose a buffer space (4), and a vent hole (224) is provided on the inner cavity cover (22) to connect the buffer space (4) to the outside.

5. The ultrasonic beauty head according to claim 6, characterized in that: A soft film buffer groove (222) is provided on the inner cavity cover (22); the soft film (24) and the soft film buffer groove (222) together form a buffer space (4); and the vent hole (224) is specifically arranged on the soft film buffer groove (222).

6. The ultrasonic beauty head according to claim 6, characterized in that: The inner cavity cover (22) is specifically provided with a film installation groove (221) at the notch of the buffer space 4, and the soft film (24) is installed in the film installation groove (221).

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