Ultrasonic head and ultrasonic beauty instrument

Abstract

The utility model discloses an ultrasonic head and an ultrasonic beauty instrument, and the ultrasonic head comprises an energy box which is provided with an accommodation cavity; the transmission wheel is movably installed in the containing cavity, and a fixing column is arranged on the end face of the transmission wheel in a protruding mode; the shaft sleeve sleeves the fixed column; the support comprises a mounting part and a connecting cylinder, the shaft sleeve is sleeved with the connecting cylinder, and the mounting part is arranged on the side, away from the transmission wheel, of the connecting cylinder; and the ultrasonic transducer is mounted on the mounting part. The shaft sleeve is arranged between the fixing column and the connecting cylinder of the support, so that the connecting cylinder of the support can be indirectly matched with the fixing column through the shaft sleeve, the structural strength and rigidity of the shaft sleeve are higher than those of the fixing column, the shape stability can be kept in the stress process, and the stability of matching with the connecting cylinder and the fixing column can be improved; the mounting stability of the ultrasonic transducer in the energy box is improved; in addition, the support can smoothly rotate relative to the fixing column, and therefore the movement stability of the ultrasonic transducer in the energy box is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of beauty equipment, in particular to an ultrasonic head and an ultrasonic beauty instrument. Background Art

[0002] With the development of the economy and the improvement of people's living standards, people's pursuit of beauty is also constantly improving. Medical cosmetology has become a very popular project, and more and more people who love beauty choose medical cosmetology to increase their appearance. Ultrasonic beauty instrument is a beauty instrument that focuses ultrasound on the subcutaneous fat layer to generate high heat, destroy subcutaneous fat cells, and play a fat-reducing role. The ultrasonic transducer unit converts electrical energy into sound energy through the transducer. In order to accurately focus the sound energy emitted by the transducer, the transducer needs to be immersed in liquid, and the transducer and liquid are sealed in a closed cavity. There is a sound outlet on the cavity, and the ultrasonic wave emitted by the transducer is emitted through the sound outlet. When in use, the sound outlet is close to the skin, so that the ultrasound is focused on the receptor position. In the related art, a driving structure is arranged in the fuselage to drive the ultrasonic transducer in the water tank to perform reciprocating motion, so that the transducer can be switched to different positions to emit ultrasonic waves. The transducer is mounted on the transmission wheel through a bracket, but the connecting column between the bracket and the transmission wheel is usually in direct contact, and the connecting column is made of plastic. The connecting column is prone to deformation when subjected to force, resulting in unstable cooperation between the bracket and the transmission wheel and shaking, causing the transducer installed on the bracket to also easily shake, affecting the position stability of the transducer, and further affecting the ultrasonic output effect of the transducer. Utility Model Content

[0003] The main purpose of the utility model is to provide an ultrasonic head, aiming to solve the technical problem of how to improve the installation stability of the ultrasonic transducer.

[0004] To achieve the above purpose, the ultrasonic head proposed by the utility model includes:

[0005] An energy box, wherein the energy box is provided with a receiving cavity;

[0006] A transmission wheel, the transmission wheel can be movably installed in the receiving cavity, and a fixing column is convexly provided on the end surface of the transmission wheel;

[0007] A shaft sleeve, the shaft sleeve is sleeved on the fixing column;

[0008] A bracket, the bracket comprising a mounting portion and a connecting tube, the connecting tube is sleeved on the shaft sleeve, and the mounting portion is arranged on a side of the connecting tube away from the transmission wheel;

[0009] An ultrasonic transducer is mounted on the mounting portion.

[0010] Optionally, the hardness and / or rigidity of the sleeve is greater than the hardness and / or rigidity of the fixing column; the surface smoothness of the sleeve is greater than or equal to the surface smoothness of the fixing column.

[0011] Optionally, a fixing hole is provided at the end of the fixing column, and the ultrasonic head further comprises a fastener, the stem of the fastener is fixedly matched with the fixing hole, and the head of the fastener limits and presses the sleeve and the connecting tube away from one end of the transmission wheel.

[0012] Optionally, one end of the sleeve away from the transmission wheel protrudes from the end of the fixing column, so that a gap is formed between the head of the fastener and the end of the fixing column.

[0013] Optionally, the stem of the fastener is threadably engaged with the fixing hole.

[0014] Optionally, the mounting portion is provided with a recessed groove, the connecting tube passes through the bottom of the recessed groove, and the head of the fastener is arranged in the recessed groove.

[0015] Optionally, the shaft sleeve and the fixing column are rotatably matched; and / or the connecting tube and the shaft sleeve are rotatably matched.

[0016] Optionally, the ultrasonic head further comprises an annular gasket, the annular gasket is arranged around the fixed end of the fixed column, and one end of the shaft sleeve and the connecting tube close to the transmission wheel is crimped to the annular gasket.

[0017] Optionally, the thickness of the sleeve is set to 0.2 mm to 2 mm.

[0018] The utility model also provides an ultrasonic beauty instrument, which comprises a housing and the ultrasonic head as described above, wherein the ultrasonic head is installed on the housing.

[0019] In the technical solution of the ultrasonic head of the utility model, a sleeve is arranged between the fixed column and the connecting tube of the bracket, so that the connecting tube of the bracket and the fixed column can be indirectly matched through the sleeve, and the structural strength and rigidity of the sleeve are higher than those of the fixed column, so that the shape can be kept stable during the force process, thereby improving the stability of the matching with the connecting tube and the fixed column, so as to improve the installation stability of the ultrasonic transducer in the energy box. In addition, the surface smoothness of the sleeve is also greater than that of the fixed column, thereby reducing the friction resistance of the connecting tube when the connecting tube and the fixed column rotate and match, so that the bracket can rotate smoothly relative to the fixed column, thereby improving the movement stability of the ultrasonic transducer in the energy box. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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 the structures shown in these drawings without paying creative work.

[0021] Figure 1 This is a schematic structural diagram of an embodiment of an ultrasonic head of the utility model;

[0022] Figure 2 It is a cross-sectional schematic diagram of an embodiment of the ultrasonic head of the utility model;

[0023] Figure 3 It is a schematic cross-sectional view of a local structure of an embodiment of an ultrasonic head in the utility model;

[0024] Figure 4 It is a partial structural cross-sectional exploded view of an embodiment of an ultrasonic head in the utility model.

[0025] Description of Figure Numbers:

[0026] Label name Label name Label name 10 Energy Box 11 Receiving cavity 20 Transmission wheel 21 Fixed column 30 Bushing 40 Bracket 41 Installation Department 42 Connecting tube 50 Ultrasonic transducer 211 Fixing holes 60 fastener 411 Sink 70 Ring gasket

[0027] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0030] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text is to include three parallel solutions, taking "A and / or B as an example", including solution A, or solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0031] With the development of the economy and the improvement of people's living standards, people's pursuit of beauty is also constantly improving. Medical cosmetology has become a very popular project, and more and more people who love beauty choose medical cosmetology to increase their appearance. Ultrasonic beauty instrument is a beauty instrument that focuses ultrasound on the subcutaneous fat layer to generate high heat, destroy subcutaneous fat cells, and play a fat-reducing role. The ultrasonic transducer unit converts electrical energy into sound energy through the transducer. In order to accurately focus the sound energy emitted by the transducer, the transducer needs to be immersed in liquid, and the transducer and liquid are sealed in a closed cavity. There is a sound outlet on the cavity, and the ultrasonic wave emitted by the transducer is emitted through the sound outlet. When in use, the sound outlet is close to the skin, so that the ultrasound is focused on the receptor position. In the related art, a driving structure is arranged in the fuselage to drive the ultrasonic transducer in the water tank to perform reciprocating motion, so that the transducer can be switched to different positions to emit ultrasonic waves. The transducer is mounted on the transmission wheel through a bracket, but the connecting column between the bracket and the transmission wheel is usually in direct contact, and the connecting column is made of plastic. The connecting column is prone to deformation when subjected to force, resulting in unstable cooperation between the bracket and the transmission wheel and shaking, causing the transducer installed on the bracket to also easily shake, affecting the position stability of the transducer, and further affecting the ultrasonic output effect of the transducer.

[0032] The utility model provides an ultrasonic head, aiming to solve the technical problem of how to improve the installation stability of an ultrasonic transducer.

[0033] In the embodiment of the present utility model, Figures 1 to 4 As shown, Figure 1 This is a schematic structural diagram of an embodiment of an ultrasonic head of the utility model; Figure 2 It is a cross-sectional schematic diagram of an embodiment of the ultrasonic head of the utility model;

[0034] Figure 3 It is a schematic cross-sectional view of a local structure of an embodiment of an ultrasonic head in the utility model; Figure 4It is a partial structural cross-sectional exploded view of an embodiment of an ultrasonic head in the utility model.

[0035] The ultrasonic head includes: an energy box 10, which is provided with a receiving cavity 11; a transmission wheel 20, which is movably installed in the receiving cavity 11, and a fixing column 21 is convexly provided on the end surface of the transmission wheel 20; a sleeve 30, which is sleeved on the fixing column 21; a bracket 40, which includes a mounting portion 41 and a connecting tube 42, which is sleeved on the sleeve 30, and the mounting portion 41 is provided on a side of the connecting tube 42 away from the transmission wheel 20; an ultrasonic transducer 50, which is mounted on the mounting portion 41.

[0036] In this embodiment, the overall shape of the energy box 10 can be many, such as cylindrical, pancake-shaped, etc., which is not specifically limited here, and is based on the specific working conditions. The overall shape is roughly cylindrical as an example, and its cross-section is roughly elliptical as an example. The receiving chamber 11 is used to accommodate the ultrasonic solution and the ultrasonic transducer 50. The ultrasonic solution can provide better ultrasonic output conditions for the ultrasonic transducer 50. The energy box 10 can be an integrated structure, or it can be formed by a combination of multiple parts. In this embodiment, the energy box 10 includes an upper shell and a bottom cover as an example. The energy box 10 is provided with a sound-transmitting hole, and the output end of the ultrasonic transducer 50 faces the sound-transmitting hole. The shape of the sound-transmitting hole can be many, such as circular, elliptical, etc., which is not specifically limited here, and the shape similar to the cross-sectional shape of the energy box 10 is taken as an example.

[0037] The sound-permeable hole is covered with a sound-permeable membrane, which is a thin sheet structure, which is fixedly installed at the position of the sound-permeable hole to cover the sound-permeable hole to prevent the ultrasonic solution from flowing out of the sound-permeable hole. There are many ways to connect the sound-permeable membrane to the energy box 10, such as through colloid bonding or welding, etc., which are not specifically limited here, and the basis is that the sound-permeable membrane can seal the sound-permeable hole. There are many forms of sound-permeable membranes, such as light-transmitting and light-impermeable. There are no special limitations here, and the light-transmitting membrane is taken as an example. The ultrasonic transducer 50 is installed in the receiving cavity 11. After the ultrasonic transducer 50 is powered on, it can convert electrical energy into sound energy. When the ultrasonic head is working, the ultrasonic transducer 50 is powered on to convert electrical energy into sound energy, and the generated ultrasonic wave is transmitted outward through the sound-permeable hole. The ultrasonic solution can not only improve the transmission effect of the ultrasonic wave, but also play a cooling role for the ultrasonic transducer 50.

[0038] The ultrasonic wave generated by the ultrasonic transducer 50 has mechanical, warming and chemical effects on human skin. Ultrasonic waves have strong power and large energy. When acting on the face, they can make skin cells vibrate, produce a fine massage effect, change the cell volume, and thus improve the circulation of local blood and lymph, enhance the permeability of cells, improve the metabolism and regeneration capacity of tissues, soften tissues, stimulate the nervous system and cell functions, and make the skin shiny and elastic. Through the warming effect of ultrasonic waves, the temperature of the skin surface can be increased, the blood circulation can be accelerated, the nutrients of skin cells can be increased, the excitability of nerves can be reduced, the analgesic effect can be achieved, the spasmodic muscle fibers can be relaxed, and the spasmodic effect can be achieved. The heat of ultrasonic waves is endogenous heat. 79% to 82% of the heat is transported away from the action area by blood, and 18% to 21% is dispersed to the adjacent tissues by heat conduction. Therefore, the user has no obvious heat sensation. Ultrasonic waves can enhance catalytic ability, accelerate the metabolism of skin cells, change the pH value of tissues to an alkaline direction, and reduce acidosis and pain associated with skin inflammation. Ultrasound can increase the permeability of cell membranes, depolymerize nutrients and drugs, facilitate the skin to absorb nutrients, facilitate drugs to penetrate into bacteria, and improve bactericidal ability.

[0039] The ultrasonic transducer 50 is mounted on the transmission wheel 20 through the bracket 40. The transmission wheel 20 is used to connect to the driving device to drive the ultrasonic transducer 50 to reciprocate in the energy box 10, so that the ultrasonic transducer 50 can be switched to different positions to transmit ultrasonic waves to different parts of the user's skin. Since the transmission wheel 20 moves in a liquid environment, in order to prevent the transmission wheel 20 from being corroded and rusted and to reduce the movement resistance of the transmission wheel 20, the transmission wheel 20 is usually set as a plastic part. The fixing column 21 protruding from the transmission wheel 20 can be integrally injection molded with the transmission wheel 20 to simplify the production process of the fixing column 21, so the fixing column 21 is also a plastic part.

[0040] Since the fixing column 21 is a plastic part, the fixing column 21 is easily deformed when it is subjected to force in cooperation with the bracket 40. The deformed fixing column 21 is easy to affect the stability of cooperation with the bracket 40, resulting in unstable installation of the ultrasonic transducer 50. The shaft sleeve 30 is sleeved on the fixing column 21. The structural strength and rigidity of the shaft sleeve 30 are higher than those of the fixing column 21. Therefore, the shape can be kept stable during the force-bearing process, and the deformation of the fixing column 21 can only occur in the shaft sleeve 30, thereby reducing the influence of the deformation of the fixing column 21 on the stability of cooperation with the bracket 40, so as to improve the installation stability of the ultrasonic transducer 50 in the energy box 10.

[0041] It can be understood that the hardness and / or rigidity of the sleeve 30 is greater than that of the fixing column 21, so that the sleeve 30 is less likely to be deformed or damaged than the fixing column 21 when subjected to force, so that the sleeve 30 can effectively play a supporting and stabilizing role. In addition, the surface smoothness of the sleeve 30 is greater than or equal to the surface smoothness of the fixing column 21, so that when the bracket 40 needs to rotate relative to the fixing column 21, the connecting tube 42 can rotate normally along the surface of the sleeve 30 to improve the movement stability of the bracket 40.

[0042] The sleeve 30 can be a metal part, for example, a stainless steel part. The stainless steel part has sufficient structural strength and rigidity, and is less likely to deform or be damaged when subjected to force, so it can maintain a stable shape, thereby improving the matching stability between the fixing column 21 and the connecting tube 42. In addition, the stainless steel part also has sufficient corrosion resistance to prevent the sleeve 30 from being easily corroded and rusted in the ultrasonic solution, thereby improving the structural stability of the sleeve 30 itself.

[0043] In practical applications, the thickness of the sleeve 30 is set to 0.2mm to 2mm, for example, it can be 0.2mm, 0.4mm, 0.6mm, 0.8mm, 1mm, 1.2mm, 1.4mm, 1.6mm, 1.8mm or 2mm. The thickness of the sleeve 30 is the wall thickness of the sleeve 30. If the wall thickness of the sleeve 30 is less than 0.2mm, the structural strength is insufficient and deformation is easy to occur; if the thickness of the sleeve 30 is greater than 2mm, it will affect the size of the connecting tube 42; therefore, setting the thickness of the sleeve 30 to 0.2mm to 2mm can not only effectively ensure the effect of the sleeve 30 on the matching stability of the connecting tube 42 and the fixing column 21, but also reasonably control the size of the sleeve 30.

[0044] The connecting tube 42 and the fixing column 21 may be tightly fitted, or may be fixed in position by a fastener 60 .

[0045] For example, Figure 3 and Figure 4 As shown, a fixing hole 211 is formed at the end of the fixing column 21, and the ultrasonic head further comprises a fastener 60, the stem of the fastener 60 is fixedly matched with the fixing hole 211, and the head of the fastener 60 limits and presses the end of the sleeve 30 and the connecting tube 42 away from the transmission wheel 20. Since the fixing column 21 is a plastic part, the fixing column 21 will expand when the fastener 60 cooperates with the fixing hole 211, and the sleeve 30 can limit the expansion and deformation of the fixing column 21 to ensure the matching effect between the fixing column 21 and the connecting tube 42.

[0046] Specifically, the rod portion of the fastener 60 is threadedly engaged with the fixing hole 211 , thereby simplifying the engagement between the fastener 60 and the fixing hole 211 and improving the convenience of installing the fastener 60 .

[0047] In practical applications, the sleeve 30 and the fixed column 21 can be rotatably matched; and / or, the connecting tube 42 and the sleeve 30 can be rotatably matched. The bracket 40 can rotate relative to the fixed column 21, thereby driving the ultrasonic transducer 50 to flexibly reciprocate in the energy box 10 to improve the movement stability of the ultrasonic transducer 50. The expansion and deformation of the fixed column 21 will not affect the rotational match between the connecting tube 42 and the sleeve 30, so it can be ensured that the bracket 40 can rotate normally relative to the fixed column 21.

[0048] For example, Figure 3 As shown, the end of the sleeve 30 away from the transmission wheel 20 protrudes from the end of the fixing column 21, so that a gap is formed between the head of the fastener 60 and the end of the fixing column 21. The sleeve 30 can protrude from the end of the fixing column 21, which can prevent the head of the fastener 60 from being directly pressed against the fixing column 21 and collapsing the fixing column 21, thereby protecting the fixing column 21 and improving the installation stability of the ultrasonic transducer 50.

[0049] Specifically, Figure 4 As shown, the mounting portion 41 is provided with a recessed groove 411, the connecting tube 42 passes through the bottom of the recessed groove 411, and the head of the fastener 60 is disposed in the recessed groove 411. The recessed groove 411 can hide the head of the fastener 60, thereby preventing the head of the fastener 60 from hindering the installation of the ultrasonic transducer 50, thereby making the assembly structure of the ultrasonic transducer 50, the bracket 40, the fastener 60 and the fixing column 21 more compact.

[0050] In practical applications, such as Figure 3 and Figure 4 As shown, the ultrasonic head further includes an annular gasket 70, which is arranged around the fixed end of the fixing column 21, and the ends of the sleeve 30 and the connecting tube 42 close to the transmission wheel 20 are crimped to the annular gasket 70. The annular gasket 70 can prevent the sleeve 30 and the connecting tube 42 from directly contacting the transmission wheel 20, so as to prevent the plastic transmission wheel 20 from being crimped and deformed by the sleeve 30 and the connecting tube 42. In addition, by setting the annular gasket 70 with a preset thickness, the installation height of the ultrasonic transducer 50 relative to the transmission wheel 20 can also be adjusted to adjust the distance between the ultrasonic transducer 50 and the sound-transmitting hole, so that the ultrasonic focal length of the ultrasonic head is more in line with actual needs.

[0051] The utility model also provides an ultrasonic beauty instrument, which includes a housing and an ultrasonic head. The specific structure of the ultrasonic head refers to the above embodiments. Since the beauty instrument adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here. The ultrasonic head is installed in the housing.

[0052] In the technical solution of the ultrasonic head of the utility model, a sleeve 30 is arranged between the fixed column 21 and the connecting tube 42 of the bracket 40, so that the connecting tube 42 of the bracket 40 can be indirectly matched with the fixed column 21 through the sleeve 30. The structural strength and rigidity of the sleeve 30 are higher than those of the fixed column 21, so the shape can be kept stable during the force, thereby improving the stability of the matching with the connecting tube 42 and the fixed column 21, so as to improve the installation stability of the ultrasonic transducer 50 in the energy box 10. In addition, the surface smoothness of the sleeve 30 is also greater than that of the fixed column 21, so that the friction resistance of the connecting tube 42 when the connecting tube 42 and the fixed column 21 are rotated and matched can be reduced, so that the bracket 40 can rotate smoothly relative to the fixed column 21, thereby improving the movement stability of the ultrasonic transducer 50 in the energy box 10.

[0053] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An ultrasonic head, characterized in that: include: An energy box, wherein the energy box is provided with a receiving cavity; A transmission wheel, the transmission wheel can be movably installed in the receiving cavity, and a fixing column is convexly provided on the end surface of the transmission wheel; A shaft sleeve, the shaft sleeve is sleeved on the fixing column; A bracket, the bracket comprising a mounting portion and a connecting tube, the connecting tube is sleeved on the shaft sleeve, and the mounting portion is arranged on a side of the connecting tube away from the transmission wheel; An ultrasonic transducer is mounted on the mounting portion.

2. The ultrasonic head according to claim 1, characterized in that: The hardness and / or rigidity of the sleeve is greater than the hardness and / or rigidity of the fixing column; the surface smoothness of the sleeve is greater than or equal to the surface smoothness of the fixing column.

3. The ultrasonic head according to claim 1, characterized in that: A fixing hole is formed at the end of the fixing column, and the ultrasonic head further comprises a fastener, the stem of the fastener is fixedly matched with the fixing hole, and the head of the fastener limits and presses the end of the sleeve and the connecting tube away from the transmission wheel.

4. The ultrasonic head according to claim 3, characterized in that: One end of the shaft sleeve away from the transmission wheel protrudes from the end of the fixing column, so that a gap is formed between the head of the fastener and the end of the fixing column.

5. The ultrasonic head according to claim 3, characterized in that: The stem of the fastener is threadably matched with the fixing hole.

6. The ultrasonic head according to claim 3, characterized in that: The mounting portion is provided with a recessed groove, the connecting tube passes through the bottom of the recessed groove, and the head of the fastener is arranged in the recessed groove.

7. The ultrasonic head according to any one of claims 1 to 6, characterized in that: The shaft sleeve and the fixing column are rotatably matched; and / or the connecting tube and the shaft sleeve are rotatably matched.

8. The ultrasonic head according to any one of claims 1 to 6, characterized in that: The ultrasonic head further comprises an annular gasket, which is arranged around the fixed end of the fixed column, and one end of the shaft sleeve and the connecting tube close to the transmission wheel is pressed onto the annular gasket.

9. The ultrasonic head according to any one of claims 1 to 6, characterized in that: The thickness of the sleeve is set to 0.2 mm to 2 mm.

10. An ultrasonic beauty instrument, characterized in that: The invention comprises a housing and an ultrasonic head as claimed in any one of claims 1 to 9, wherein the ultrasonic head is installed in the housing.

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